汽车英语之汽车发动机介绍

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汽车英语-发动机部分

汽车英语-发动机部分（个人整理版）作者:fiat0012008-12-15 13:16 星期一晴第一部分发动机一、汽车发动机 Automobile Engines内燃机发动机是通过汽油和空气的混合而运行的，理想的空燃比是14.7份质量的空气和1份质量的汽油混合。

Internal combustion gasoline engines run on a mixture of gasoline and air. The ideal mixture is 14.7 parts air to one part of gasoline（by weight.）由于汽油比空气重得多，因此我们一直笼统地说成大量的空气和少量的燃油。

Since gas weights much more than air, we are talking about a whole lot of air and tiny bit of gas.当发动机点火后，一份被完全汽化的燃油和14.7份质量的空气混合，就能产生出巨大的动力。

One part of gas that is completely vaporized into 14.7 parts of air can produce tremendous power when ignited inside an engine.让我们来看一下现代发动机的工作原理。

Let’s see how the modern engine uses that energy to make the wheels turn.空气通过空气滤清器进入发动机，并进入节气门。

Air enters the engine through the air cleaner and proceeds to the throttle plate.通过油门踏板，你能控制经过节气门进入发动机的空气量。

空气然后通过进气歧管进入各个气缸。

汽车大部件介绍英文作文

汽车大部件介绍英文作文
英文：
As a car enthusiast, I am always fascinated by the different components that make up a car. In this article, I will introduce some of the major car parts and their functions.
Engine: The engine is the heart of the car, responsible for converting fuel into energy to power the vehicle. It is usually located in the front of the car and can be either gasoline or diesel-powered. The engine is made up of various parts, including the pistons, crankshaft, and camshaft.
中文：
作为一名汽车爱好者，我总是被构成汽车的不同部件所吸引。

在本文中，我将介绍一些主要的汽车部件及其功能。

发动机，发动机是汽车的心脏，负责将燃料转化为能量以驱动车辆。

它通常位于汽车前部，可以是汽油或柴油动力。

发动机由各种部件组成，包括活塞、曲轴和凸轮轴。

汽车专业英语--发动机

push rod
■ Valve gear tappet ■ Connecting rod
timing gears
connecting rod piston crankshaft flywheel
Engine cooling system
Engine lubricating system
Fuel supply system
Compression 压缩
Power 做功
Exhaust 排放
Stroke . /strəuk / n. 打击；中风；笔画；冲程；尝试；轻抚
20
四、发动机的布置形式
发动机前置前轮驱动
发动机前置后轮驱动
发动机后置后轮驱动
21
课堂小结
需要记住的单词： Engine
发动机
Chassis
底盘
冷却系 cooling system
润滑系 lubrication system
[ˌlu:brɪ'keɪʃn]
润滑，加油; 油润;
起动系 starting system
点火系 Ignition system
[ɪgˈnɪʃn]
12
燃油供给系 fuel supply system 进气系统 intake system 排气系统 exhaust system
• II. Text Explanation
The internal combustion engine, as its name indicates, burns fuel within the cylinders and converts the expanding force of the combustion into rotary force used to propel the vehicle.

汽车专业英语--发动机

burns fuel within the cylinders and converts the expanding force of the combustion into rotary force used to propel the vehicle.
Single-cylinder engine
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•需要记住的句子
There are four basic components of the automobile : engine , chassis , body and electrical system .
译：汽车有四个基本组成部分，发动机，底盘，车身和电气系统。
Engine system includes ： ignition system，lubrication system, cooling system, starting system.
push rod
■ Valve gear tappet ■ Connecting rod
timing gears
connecting rod piston crankshaft flywheel
Engine cooling system
Engine lubricating system
Fuel supply system
冷却系 cooling system
润滑系 lubrication system
[ˌlu:brɪ'keɪʃn]
润滑，加油; 油润;
起动系 starting system
点火系 Ignition system
[ɪgˈnɪʃn]
12
燃油供给系 fuel supply system 进气系统 intake system 排气系统 exhaust system

Unit 2汽车专业英语(发动机)

Reading
In other words, the piston completes a stroke each time it changes its direction of motion. 换句话说，活塞每完成一次冲程就会改变运动方向。
In other words
In other words, they remain relatively constant or static. 换句话说，它们相对的稳定、静止。 In other words, we have adhered to scientific socialism. 也就是说，我们坚持了科学社会主义
intake valve
exhaust valve
push rod
■ Valve gear
9tappet
■ Connecting rod
timing gears
connecting rod
piston
crankshaft
flywheel
Engine cooling system
Engine lubricating system
I. Pre-questions
What impression of the engine?
complicated
power
I. Pre-questions
What are the types of the engine?
electric motors, steam engines, and internal combustion engines What’s the internal combustion engine? burns fuel within the cylinders and converts the expanding force of the combustion into rotary force used to propel the vehicle.

汽车发动机英语词汇

汽车发动机英语词汇第二类 ENGINE 发动机一、Engine construction 发动机构造序号英文中文1 rocker arm cover 摇臂罩2 valve rocker arm 气门摇臂3 camshaft 凸轮轴4 camshaft drive 凸轮轴驱动轮5 spark plug lead 火花塞导线6 timing belt cover 正时皮带罩7 valve spring 气门弹簧8 poppet valve 菌形气门9 piston 活塞10 connecting rod 连杆11 timing belt 正时皮带12 combustion chamber 燃烧室13 cylinder block 汽缸体14 water jacket 水套15 oil filter 机油滤清器16 flywheel 飞轮17 ring gear 齿圈18 oil gage 机油标尺19 oil pan/sump 油底壳20 crankshaft 曲轴21 drain plug 放油孔塞22 v-belt pulley V型皮带轮二、Essential term 基本术语序号英文中文1 cylinder diameter 汽缸直径2 piston stroke 活塞行程3 crank radius 曲轴半径4 piston displacement 活塞排量5 compression chamber volume 压缩室容积6 total cylinder volume 总汽缸容积7 top dead center 上止点8 bottom dead center 下止点三、Engine operation principle 发动机工作原理3。

1 Four—stroke gasoline engine operation principle 四冲程汽油机工作原理序号英文中文1 intake stroke 进气行程2 compression stroke 压缩行程3 expansion stroke 膨胀行程4 exhaust stroke 排气行程5 combustible mixture 可燃混合气6 intake valve 进气门7 spark plug 火花塞8 exhaust valve 排气门9 exhaust gas 废气3.2 Four—stroke diesel engine operational principle 四冲程柴油机工作原理序号英文中文1 intake stroke 进气行程2 compression stroke 压缩行程3 expansion stroke 膨胀行程4 exhaust stroke 排气行程5 intake 进气6 compression 压缩7 combustion 燃烧8 expansion 膨胀9 exhaust 排气10 air 空气11 injector 喷油器12 exhaust gas 废气3。

汽车发动机相关中英文对照

汽车发动机相关中英文对照发动机 engine内燃机 intenal combusiton engine动力机装置 power unit汽油机 gasoline engine汽油喷射式汽油机gasoline-injection engine火花点火式发动机spark ignition engine压燃式发动机compression ignition engine 往复式内燃机 reciprocating internal combustion engine 化油器式发动机 carburetor engine柴油机 diesel engine转子发动机 rotary engine 旋轮线转子发动机rotary trochoidal engine二冲程发动机 two-stroke engine四冲程发动机 four-stroke engine直接喷射式柴油机direct injection engine间接喷射式柴油机indirect injection engine增压式发动机 supercharged engine风冷式发动机 air-cooled engine油冷式发动机 oil-cooled engine水冷式发动机 water-cooled engine自然进气式发动机naturally aspirated engine煤气机 gas engine液化石油气发动机liquified petroleum gas engine 柴油煤气机 diesel gas engine 多种燃料发动机 multifuel engine 石油发动机 hydrocarbonengine双燃料发动机 duel fuel engine热球式发动机 hot bulb engine多气缸发动机multiple cylinder engine对置活塞发动机opposed piston engine对置气缸式发动机opposed-cylinder engine十字头型发动机 cross headengine直列式发动机 in-line engine星型发动机 radial engine筒状活塞发动机trunk-piston engine斯特林发动机 stirling engine套阀式发动机 knight engine气孔扫气式发动机port-scavenged engine倾斜式发动机 slant engine前置式发动机 front-engine后置式发动机 rear-engine中置式发动机 central engine左侧发动机 left-hand engine右侧发动机 right-hand engine短冲程发动机 oversquareengine长冲程发动机 undersquareengine等径程发动机 square engine顶置凸轮轴发动机overhead camshaft engine双顶置凸轮轴发动机dual overhead camshaft engineV形发动机 V-engine顶置气门发动机valve in-head engine侧置气门发动机 side valveengine无气门发动机 valveless engine多气门发动机 multi-valveengine卧式发动机 horizontal engine斜置式发动机 inclined engine立式发动机 vertical engineW形发动机 w-engineI形发动机 I-engineL形发动机 L-engineF形发动机 F-engine二冲程循环 two-stroke cycle四冲程循环 four-stroke cycle狄塞尔循环 diesel cycle奥托循环 otto cycle混合循环 mixed cycle定容循环 constant volumecycle工作循环 working cycle等压循环 constant pressurecycle理想循环 ideal cycle热力循环 thermodynamic cycle冲程 stroke活塞行程 piston stroke长行程 long stroke上行程 up stroke下行程 down stroke进气行程 intake stroke充气行程 charging stroke压缩行程 compression stroke爆炸行程 explosion stroke膨胀行程 expansion stroke动力行程 power stroke排气行程 exhaust stroke膨胀换气行程expansion-exchange stroke换气压缩行程exchange-compression stroke止点 dead center上止点top dead center(upper deadcenter)下止点lower dead center(bottom deadcenter)上止点前budc(before upper dead center)上止点后atdc(after top dead cetner)下止点前bbdc(before bottom deadcenter)下止点后abdc(after bottom dead center) 缸径 cylinder bore缸径与行程 bore and stroke 空气室 energy chamber气缸余隙容积cylinder clearance volume燃烧室容积combustion chamber volume 气缸最大容积maximum cylinder volume压缩室 compression chamber 排气量 displacement发动机排量 engine displacement活塞排量 piston swept volume 气缸容量 cylinder capacity单室容量 single-chamber capacity容积法 volumetry压缩比 compression ratio临界压缩比critical compression ratio膨胀比 expansion ratio面容比 surface to volume ratio 行程缸径比 stroke-bore ratio 混合比 mixture ratio压缩压力 compression pressure制动平均有效压力 brake mean effective pressure(bmep) 空燃比 air fuel ratio燃空比 fuel air ratio燃料当量比 fuel equivalence ratio扭矩 torque单缸功率 power per cylinder 升功率 power per liter升扭矩 torque per liter升质量 mass per liter减额功率 derating power输出马力 shaft horsepower 马力小时，马力时horsepower-hour总马力 gross horse power总功率 gross power 净功率 net power燃油消耗量 fuel consumption比燃料消耗率specific fuel consumption空气消耗率 air consumption机油消耗量 oil consumption有效马力 net horse power额定马力 rated horse power马力重量系数horsepower-weight factor制动功率 brake horse power制动热效率brake thermal efficiency总效率 overall efficiency排烟极限功率smoke limiting horsepower功率曲线 power curve机械损失 mechanical loss机械效率 mechanical efficiency有效热效率effective thermal efficiency充气系数 volumetric efficiency过量空气系数coefficient of excess air适应性系数 adaptivecoefficient扭矩适应性系数coefficient of torque adaptibility转速适应性系数speed adaptive coefficient强化系数coefficient of intensification校正系数 correction factor换算系数 conversion factor活塞平均速度 mean pistonspeed发动机转速engine speed (rotationalfrequency)怠速转速 idling speed经济转速 economic speed起动转速 starting speed最低稳定工作转速 lowestcontinuous speed with load最大扭矩转速speed at maximum torque最高空转转速maximum no load governedspeed调速 speed governing超速 overspeed怠速 idling转速波动率 speed fluctuationrate工况working condition(operatingmode)额定工况declared working condition变工况 variable workingcondition稳定工况 steady workingcondition空载 no-load全负荷 full load超负荷 overload部分负荷 part load充量（进气） charge旋转方向 direction of rotation顺时针 clockwise逆时针 counter-clockwise左转 left-hand rotation右转 right-hand rotation外径 major diameter中径 pitch diameter内径 minor diameter径向间隙 radial clearance发动机性能 engineperformance加载性能 loading performance起动性能 starting performance加速性能 accelerationperformance动力性能 power performance排放性能 emissionperformance空转特性 no loadcharacteristics负荷特性part throttle characteristics调速特性governor control characteristics万有特性 mapping characteristics稳定调速率steady state speed governing rate气缸体和气缸盖cylinder block and head气缸体 cylinder block整体铸造cast inblock (cast enblock)发动机罩 engine bonnet气缸体加强筋engine block stiffening rib气缸 cylinder（转子机）缸体 stator缸径 cylinder bore气缸体机架 cylinder block frame气缸盖 cylinder head配气机构箱valve mechanism casing气缸体隔片 cylinder spacer 气缸盖密封环cylinder head ring gasket气缸盖垫片 cylinder head gasket气缸套cylinder liner(cylinder sleeve) 干式缸套 dry cylinder liner湿式缸套 wet cylinder liner 气缸水套 water jacket膨胀塞 expansion plug防冻塞 freeze plug气缸壁 cylinder wall环脊 ring ridge排气口 exhaust port中间隔板 intermediate bottum 导板 guideway创成半径（转子机）generating radius缸体宽度（转子机）operating width机柱 column燃烧室 combustion chamber 主燃烧室main combustion chamber 副燃烧室subsidiary combustion chamber预燃室 prechamber涡流燃烧室`swirl combustion chamber分开式燃烧室divided combustion chamber涡流式燃烧室turbulence combustionchamber半球形燃烧室hemispherical combustionchamber浴盆形燃烧室 bathtub sectioncombustion chamberL形燃烧室 L-combustionchamber楔形燃烧室wedge-section combustionchamber开式燃烧室open combustion chamber封闭喷射室 closed spraychamber活塞顶内燃烧室 pistonchamber爆发室 explosion chamber燃烧室容积比 volume ratio ofcombustion chamber燃烧室口径比 surface-volumeratio of combustion chamber通道面积比 area ratio ofcombustion chamber passage曲轴箱通气口 crankcasebreather凸轮轴轴承座camshaft bearing bush seat定时齿轮室罩camshaft drive(gear)cover曲轴箱检查孔盖 crankcasedoor曲轴箱防爆门crankcase explosion proof door主轴承盖 main bearing cap气缸盖罩 valve mechanismcover飞轮壳 flywheel cover扫气储器 scavenging airreceiver活塞 piston裙部开槽活塞 split skirt pistonU形槽活塞 U-slot piston滚花修复活塞 knurled piston圆顶活塞 dome head piston平顶活塞 flat head piston凸顶活塞 crown headpiston(convex head piston)凹顶活塞 concave head piston阶梯顶活塞 step-head piston筒形活塞 trunk piston椭圆形活塞 oval piston抗热变形活塞 autothermicpiston不变间隙活塞constant clearance piston镶因瓦钢片活塞 invar strutpiston直接冷却式活塞direct-cooled piston间接冷却式活塞indirect cooled piston滑裙活塞 slipper piston活塞速度 piston speed活塞顶部 piston head活塞裙部 piston skirt整体活塞裙 solid skirt活塞裙扩大衬簧piston skirt expander滑履式活塞裙 slipper skirt隔热槽 heat dam活塞标记 piston mark活塞销 piston pin活塞销孔 piston pin boss活塞销衬套 piston pin bushing全浮式活塞销full-floating piston pin半浮式活塞销semifloating piston pin固定螺钉式活塞销set screw piston pin活塞环 piston ring组合式活塞环compound piston ring同心活塞环 concentric piston ring偏心活塞环 eccentric piston ring自由环 free ring闭合环 closed ring梯形环 keystone ring半梯形环 half keystone ring 矩形环 rectangular ring油环 oil control ring开槽油环 slotted oil control ring螺旋弹簧加载双坡口油环coil spring loaded slotted oil control ring涨环 expander双坡口油环double bevelled oil control ring 内上坡口 internal bevel top 内下坡口 internal bevel bottom边缘坡口油环bevelled-ege oil control ring刮油环 scrapper ring钩形环 napier ring镀铬活塞环chrome plated piston ring活塞衬环 piston ring expander 活塞环槽 piston ring groove 活塞环区 ring zone活塞环岸 piston ring land活塞环内表面 back of ring 曲柄连杆机构 connecting rod 中心曲柄连杆机构central-located connecting rod 偏心曲柄连杆机构offset connecting rod铰接曲柄边杆机构hinged connecting rod连杆 connecting rod连杆小头 connecting rod small end连杆大头 connnecting rod big end 连杆杆身 connecting rodshank副连杆 slave connecting rod叉形连杆fork-and-blade connecting rod主连杆 main connecting rod方形连杆 boxed rod绞链式连杆hinged type connecting rod活节式连杆articulated connecting rod连杆盖 connecting rod cap连杆轴承 connecting rodbearing曲轴 crankshaft整体式曲轴 one-piececrankshaft组合式曲轴 assembledcrankshaft右侧曲轴 right-handcrankshaft左侧曲轴 left-hand crankshaft改变行程的曲轴stroked crankshaft曲轴前端 crankshaft front end曲轴主轴颈crankshaft main journal轴颈重叠度 shaft journaloverlap圆角 fillet主轴承main bearing曲轴止推轴承crankshaft thrust bearing薄臂轴瓦 thin wall bearingshell曲轴油道 crankshaft oilpassage曲柄 crank曲柄臂 crank arm曲柄销 crank pin轴套 bush曲柄转角 crank angle曲柄半径 crank radius抛油圈 oil slander角度轮 degree wheel动平衡机 dynamic balancer平衡重 balancer weight扭振减振器torsional vibration damper扭振平衡器 torsion balancer谐振平衡器 harmonic balancer振动平衡器 vibration balancer曲轴链轮 crankshaft sprocket转子轴颈 rotor journal偏心轴 eccentric shaft曲轴箱 crankcase闭式曲轴箱通风装置closed-crankcase ventilatingsystem飞轮 flywheel飞轮齿圈 flywheel ring gear飞轮芯棒 cantilever飞轮芯轴 flywheel spindle飞轮的惯量矩flywheel moment of inertia飞轮标记 flywheel mark当量系统 equivalent system当量轴长 equivalent shaftlength一级往复惯性力reciprocating inertia force,1storder二级往复贯性力 reciprocatinginertia force, 2nd order离心惯性力 centrifugal inertiaforce配气机构 valve gear凸轮轴 camshaft凸轮 cam整体式凸轮轴 one-piececamshaft组合式凸轮轴 assembledcamshaft凸轮轴驱动机构 camshaftdrive赛车用凸轮轴 race camshaft凸轮轴轴颈camshaft bearing journal凸轮轴轴承 camshaft bearing凸轮轴偏心轮 camshafteccentric凸轮轴链轮 camshaft sprocket凸轮轴正时齿轮camshaft timing gear凸轮轴齿轮 camshaft gear wheel进口凸轮 inlet cam排气凸轮exhaust cam快升凸轮quick lift cam快升缓降凸轮quick lift gradual clsing cam凸轮轮廓 cam contour凸轮包角 cam angle凸轮升程 cam-lobe lift凸轮尖 cam nose凸轮从动件 cam follower齿轮传动机构gear drive正时齿轮 timing gear链传动机构 chain drive链轮 sprocket wheel链轮盘 chain sprocket正时链条 timing chain带齿皮带 toothed timing belt 链条张紧轮 chain tension gear 半速齿轮 half speed gear正时齿轮刻印记号timing gear punch mark气门 valve进气过程 intake process换气过程 gas exchange process 扫气过程 scavenging process 给气比 delivery ratio分层充气 stratified charge充量系数 volumetric efficiency 涡流比 swirl rate进气涡流 intake swirl螺旋进气道进气 helical duct intake导流屏式气门进气masked valve intake切向进气道进气tangential duct intake进气紊流 intake trubulence进气提前角 intake advance angle进气持续角 intake duration angle进气迟后角 intake lag angle 进面值 time-area value气门升程 valve lift气门正时 valve timing扫气口面积 scavenging portarea菌形气门mashroom valve, poppet valve钠冷却气门 sodium filledvalve(natrium cooled valve)双气门 dual valve进气门 intake valve (suctionvalve,inlet valve)排气门 exhaust valve顶置气门 overhead valve侧置气门 side valve倾斜气门 inclined overheadvalve直立气门 vertical overheadvalve套筒式滑阀 sleeve valve气门机构 valve gear直接式气门驱动机构direct valve gear间接式气门驱动机构indirect valve gear气门杆 valve stem加大气门杆 oversize valvestem气门头 valve head气门工作面 valve face气门边限 valve margin气门弹簧座 valve-springretainer气门锁片 valve key气门间隙调节螺钉valve lash adjusting screw气门旋转器 valve rotator气门室 valve cage气门油封 valve oil seal气门口 valve port气门座 valve seat气门座镶圈（嵌镶式气门座圈）valve seat insert(valve seatring)气门座锥角 valve seat angle气门座宽度 valve seat width气门挺杆 valve tappet(valvelifter)液力挺杆 hydraulictappet(lifter)无间隙挺杆 zero-rush tappet(non-clearance tappet)筒形挺杆 barrel type tappet油压挺杆 ooil tappet滚轮挺杆roller tappet(lifter)挺杆转位 tappet rotation排气门挺杆 exhaust valve lifter气门导管 valve guide气门杆导管 stem guide气门重叠度 stem overlap气门开启持续时间 valveduration气门正时标记 valve timingsign气门弹簧 valve spring气门内弹簧 inner valve spring气门外弹簧 outer valve spring刚性缓冲弹簧 stiff bufferspring上紧弹簧 energizing spring防振气门弹簧 non-surgingspring弹簧座圈 spring retainer蝶形弹簧 belleville spring滚柱 roller气门室盖 valve chamber cover摇臂 rocker arm高升程摇臂 high lift rockerarm摇臂轴 rocker arm shaft推杆 push-rod摇臂支架 rocker arm bracket气门摇臂室罩valve rocker chamber cover导向轮 guide wheel导杆 slide bar导轨 slide rail张紧轮 tensioning wheel链条张紧调节装置assembly chain tension adjuster张紧带轮 tensioning pulley传动带张紧装置 belt tensioner同步驱动皮带 synchronous belt同步驱动皮轮synchronous belt pulley供油系 fuel system控制燃烧系统controlled combustion system 反湿气装置 antipercolator电子燃油喷射electronic fuel injection蒸气回收装置vapor recovery system燃油蒸气回收系统fuel vapor recovery system液体回收装置liquid withdrawal system恒量净化管 constant purge line碳罐净化管 canister purge line 供油量 fuel delivery循环供油量 fuel delivery per cycle额定供油量 rated fuel delivery 怠速供油量idling speed fuel delivery供油规律 fuel supply rate curve 油量调节装置 fuel control unit 供油提前角fuel supply advance angle进油计量 inlet metering几何供油行程geometric fuel delivery stroke 供油率 fuel supply rate燃油通道 fuel gallery有效行程 effective stroke剩余行程 remainder stroke变行程计量variable stroke metering等容卸载constant volume unloading变容卸载variable volume unloading收缩容积 retraction volume燃油喷油装置fuel injection equipment 燃油喷射泵 fuel injectionpump滚轮式燃油喷射泵roll fuel injection pump凸轮轴式燃油喷射泵camshaft fuel injection pump直列式燃油喷射泵 in-line fuelinjection pump伺服式燃油喷射泵servo fuel injection pump底部突缘安装燃油喷射泵base flanged mounted fuelinjection pump上部安装燃油喷射泵 highflanged-mounted fuel injectionpump侧向安装燃油喷射泵side-mounted fuel injectionpump端部突缘安装式燃油喷射泵end flange-mounted fuelinjection pumpV形燃油喷射泵vee fuel injection pump脉动式燃油喷射泵jerk fuel injection pump螺纹安装燃油喷射泵screw-mounted fuel injectionpump蓄能式燃油喷射泵accumulator fuel injectionpump往复式燃油喷射泵reciprocating fuel injectionpump驱动轴式燃油喷射泵driveshaft fuel injection pump单缸式燃油喷射泵single cylinder fuel injectionpump圆柱式燃油喷射泵cylindrical fuel injection pump旋转式燃油喷射泵rotary fuel injection pump分配式燃油喷射泵distributor fuel injection pump多缸燃油喷射泵multicylinder fuel injectionpump框架安装式燃油喷射泵cradle mounted injection pump喷油始点 fuel injectionbeginning喷油终点 fuel injection end喷油持续角fuel injection duration angle喷油延迟 injection delay引燃喷射 pilot injection启喷压力injection starting pressure峰值喷油扭矩peak injection torque峰值喷油压力peak injection pressure喷油泵油缸数目 number ofcylinders of an injection pump无气喷射 solid injection喷射正时 injection timing集中喷射 group injection喷油器 injector整体式喷油器 unit injector喷嘴 nozzle轴针式喷嘴 pintle type nozzle环槽式喷嘴 annular slot nozzle孔式喷嘴 hole type nozzle长杆喷嘴long stem nozzle孔板式喷嘴 orifice platenozzle开式喷嘴 open nozzle闭式喷嘴 closed nozzle喷油提前器 timing advanceunit喷射泵壳体 injection pumphousing针阀 needle芯轴 central spindle喷嘴壳体 nozzle body针阀升程 needle lift喷嘴盖形螺母 nozzle cap nut喷油器壳体 nozzle holder突缘安装喷油器壳体 flanged-mounted injection nozzle holder燃油喷射泵传动装置transmision of an injection pump喷嘴锥体 nozzle hole cone柱塞 plunger柱塞套 barrel柱塞行程 plunger stroke喷孔 spray orifice海拔控制器 altitude control 提前器飞锤 flyweight喷孔长径比 ratio of nozzle hole length nozzle diameter喷嘴液动力特性nozzle hydrokinetic characteristics动态相位 dynamic phase喷孔面积 nozzle hole area喷嘴流通特性nozzle flow characteristic喷油背压 injection back pressure高压油管 high pressure pipe 平均喷油扭矩mean injection torque喷油总效率overall pumping efficiency峰值喷油压力injection peak pressure预行程 prestroke收缩行程 retraction stroke燃油箱 fuel tank油箱盖 fuel tank油位表 fuel level gauge注油控制装置 fill control system汽油箱 gasoline tank( petrol tank)汽油供给管 gasoline feed pipe 加油管 filler tube放油螺塞 drain plug吸油管 suction pipe刚性燃油管 rigid fuel pipe进油孔 fuel feed hole 供油管 supply pipe通气管 bleeding pipe通气管 bleeding pipe泄油阀 spill valve泄油孔口 spill port进油阀 inlet valve最大油量限制器maximum fuel stop滴油 dribble燃油表 fuel gauge输油泵 feed pump燃油泵 fuel pump附装燃油箱中的电动燃油泵tank-mounted eletric fuel pump机械式燃油泵mechanical fuel pump膜片式燃油泵diaphragm fuel supply pump叶片式供油泵vane fuel supply pump活塞式输油泵piston type fuel supply pump齿轮式输油泵gear fuel supply pump电动燃油泵 eletric fuel pump带真空泵的汽油泵vacuum pump with fuel pump起动加油器 primer起动给油杆 primer lever燃油泵上体 fuel pump body燃油泵下体 fuel pump base燃油泵盖 bowl cover进油口接头fuel inlet neck出油口接头 fuel discharge port输出阀 delivery valve泵油元件 pump element回油阀部件fuel return valve assembly化油器 carburetor化油器系统 carburetor circuit简单化油器 elementarycarburetor单腔化油器single-barrel carburetor双腔并动化油器two-barrel dual carburetor双腔分动化油器two-barrel duplex carburetor四腔化油器 four-barrelcarburetor上吸式化油器 updaughtcarburetor下吸式化油器downdraught carburetor平吸式化油器horizontal carburetor侧吸式化油器side-draft-carburetor高海拔补偿式化油器altitude compensatingcarburetor化油器附加器 adaptorcarburetor双腔式化油器twin-choke carburetor固定喉管式化油器fixed venturi carburetor可变喉管化油器variable venturi carburetor化油器接头 carburetor adaptor阻风门 choke valve阻风活塞 choke piston阻风板 choke plate自动阻风门 automatic choke阻风门拉钮 choke button电控自动阻风门electric-assisted choke阻风管 choke tube喉管 venturi双重或三重喉管double & triple venturi阻风门拉线 choke cable化油器小喉管 booster venturi浮子系 float system浮子 float环形浮子 annular float同心式浮子 concentric float浮子支销 float hinge pin浮子针阀 float needle valve阀针 valve needle浮子油面 float level浮子臂 float arm侧置浮子室式 side float type 怠速阀 idle valve怠速针阀 idle needle省油器 economizer省油器阀 economizer valve辅助空气阀 auxiliary air-valve 加速油井 accelerating well加速泵 accelerating pump加速泵喷嘴accelerating pump nozzle油门 throttle手油门 hand throttle节气门操纵手柄throttle control lever真空加浓器 vacuum booster 加浓器 excess fuel device量孔体 jet block怠速量孔 idle metering jet主量孔 main metering jet剂量阀活塞 dosage valve piston空气量孔 air jet燃油滤清器 fuel filter沉淀杯 sediment bowl串联过滤器 in-line filter燃油箱内装过滤器 in-tank filter调速器 governor飞球式调速器 flyball governor 调速器 governor飞球式调速器 flyball governor 液压调速器 hydraulic governor 真空转速调速器vacuum speed governor惯性调速器 inertia governor 离心调速器 centrifugal governor调速器重锤 governor weight 空气滤清器及进排气系统air cleaner and intake and exhaust sytem空气滤清器 air filter冲压式空气滤清器 ram air clearner 恒温控制式空气滤清器thermostatic controlled aircleaner油浴式空气滤清器oil bath air cleaner纸质空气滤清器 paper airclearner旋流管式空气滤清器swirl tube air filter滤清器滤芯 filter element空气滤清器壳体 air filterhousing空气滤清器盖 air filter cover滤清器密封圈 filter seal ring滤网 sieve滤纸盘或膜filter paper disc or membrane进气和排气系统intake and exhaust system排气管 exhaust pipe排气抽气管 exhaust extractionduct扫气泵 scavenging pump进气预热装置 intake preheater进气歧管 intake manifold进气歧管真空度intake manifold vacuum冷式进气歧管 cold manifold冲压式进气歧管ram intake manifold排气歧管 exhaust manifold脉冲式排气歧管pulse exhaust manifold等压排气歧管constant pressrue exhaustmanifold排气歧管热量控制阀exhaust manifold heat controlvalve超高度歧管 high-rise manifold升温横跨管道 heat crossover排气横跨管道 exhaustcrossover预热点 hot spot阻风门加热器 choke heater热空气导流管 hot air duct隔热板 heat shield排气再循环阀exhaust -gas-recirculation消声器 silencer进气消声器 intake silencer排气消声器 exhaust silencer金属垫片式消声器steel pack muffler玻璃丝消声器 glass packmuffler空洞消声器 gutted muffler前排气管 front exhaust pipe尾管 tail pipe消声器联接管 intermediatepipe热空气管 hot air pipe曲轴箱通风管 crankcase bleedpipe隔声罩 acoustic hood进气消声器元件 silencerelement真空泵 vacuum pump指示功率 indicated power指示热效率indicated thermal efficiency指示油耗率 indicated specificenergy consumption示功图 indicator diagram冷却系 cooling system风冷 air cooling水冷 water-cooling循环流冷却系cooling recovery system自然循环液冷却系统 naturalcirculation type cooling system热流循环液冷却系统thermo-siphon circulation typecooling system温差循环液冷却系统 gravitycirculation water cooling system压力式水冷却系统 positivecirculation cooling system加压式冷却法pressure type cooling水泵循环冷却系统pump circulation cooling system强制循环式化冷系统 forced-feed water circulation system 封闭式液冷系统sealed cooling system散热器 radiator片式散热器 finned radiator 管式散热器 tubular radiator 蜂窝式散热器 cellular radiator 哈里逊式散热器Harrison type radiator带板式散热器 ribbon type radiator上水箱 upper tank下水箱 lower tank涨溢箱 expansion tank散热器芯 radiator core之字形管散热器芯 film core 管-片式散热器芯 fin and tube core散热器加水口盖 radiator filter cap压力式水箱盖radiator-pressure cap蒸气-空气泄放阀vapor-air release valve散热器护罩 radiator cowl散热器百叶窗 radiator shutter 散热器保温帘 radiator roller blind散热片 cooling fin缸盖散热片 cylinder head fin 缸体散热片 cylinder block fin 控温装置temperature regulating device 恒温器 thermostat恒温器主阀 thermostat main valve恒温器旁通阀thermostat by-pass valve恒温器挠性波纹筒thermostat flexible bellows液体冷却设备liquid cooling equipment水泵 water pump 水泵体 pump casing水泵叶轮 water pump impeller旁通进水口water by-pass inlet neck循环泵 circulating pump主进水口 water main inlet port出水口 water outlet port自调式水封 self-adjusting sealunit溢流管 overflow pipe导流板 deflector风扇 fan(blower)轴流式风扇 axial flow fan离心式风扇 centrifugal fan风扇壳体 blower casing风扇导流罩 fan cowl风扇毂 fan hub风扇叶片 fan blade风扇叶轮 blower impeller风扇导流定子 blower stator风扇皮带轮 fan pulley三角皮带 v-belt风扇护罩 fan shroud风扇叶轮叶片 impeller vane冷却用空气 cooling air风扇导流叶片 stator vane强制风冷 forced-air cooling自然风冷 natural air cooling风道 air ducting润滑系 lubrication system润滑 lubrication气缸上部润滑upper cylinder lubrication压力润滑 pressure-feedlubrication压力润滑法 forced lubrication自动润滑 automatic lubrication飞溅润滑 splash lubrication润滑周期 lubrication interval边界润滑 borderlinelubrication曲轴箱机油油盘 crankcase oilpan油底壳 oil pan机油盘放油塞 sump plug集油器 oil collector机油泵 oil pump计量式机油泵 metering oilpump齿轮式机油泵 gear type oilpump转子式机油泵 rotor-type oilpump机油泵出油管 oil pump outletpipe放油口 oil drain hole油道 oil duct断油开关 cut-off cock机油散热器 oil cooler机油滤清器 oil filter机油粗滤器 primary oil filter机油精滤器 secondary oil filter全流式机油滤清器full-flow oil filter分流式机油滤清器 by-pass oilfilter离心式机油滤清器centrifugal oil filter整体式滤芯integral filtering element细滤器滤芯 filter element滤清器壳 filter box滤片filtering disc机油减压器 oil pressure reliefvalve旁通阀 by-pass oil filter机油滤网 oil strainer加机油孔 oil filter cap滤芯轴 filter shaft刮片组件 cleaning edge机油量尺 dipstick机油滤网 oil strainer增压器 supercharger增压和扫气装置 pressure-charging and scavenging unit增压装置 supercharging device涡轮增压器 turbo-charger气波增压器 comprex pressurewave supercharger增压器阻风阀supercharger blast gate增压器调节容气量的旁通阀supercharger control bypass增压器叶轮 supercharger impeller惯性增压 inertia supercharging 机械增压mechanical supercharging涡轮增压 turbo-charging增压比 supercharge ratio增压压力 boost pressure增压中冷 inter-cooling中冷度 inter-cooling level增压度 supercharging level喘振 surge喘振线 surge line轴流式涡轮 axial-flow turbine 脉冲进气 ram charging发动机试验 engine test发动机试验规程engine test procedure发动机技术要求engine technical requirements 标准大气状况standard atmospheric conditions大气压力 atmospheric pressure 进气温度 inlet air temperature 进气温度 inlet air temperature 功率校正 power correction功率标定 power rating功率换算 power conversion 校正系数 correction factor换算系数 performance test性能试验 performance test起动性能试验 starting ability test怠速试验 idle running test道路负荷试验 road load test 各缸工作均匀性试验cylinder variation test背压试验 back pressure test 最低稳定工作转速试验lowest continuous speed test with load背部泄漏试验 back-leakage test 调整试验 adjustment test热平衡试验 heat balance test快速磨损试验accelerated wear test热冲击试验 thermo-shock test空载特性试验no-load characteristic test模拟增压试验simulated supercharging test停缸试验 cylinder fuel-cut test增压机匹配试验turbo-charger matching test排气分析试验 exhaust analysistest突变负荷试验sudden load change test稳定性试验 stability test单缸熄火试验one cylinder shut off test例行检查试验routine inspection test验证试验 verification test鉴定试验 approval test可靠性试验 reliability test耐久性试验 durability test定型试验 type approval test验收试验 acceptance test现场试验 field test出厂试验 delivery test抽查试验 spot check test复查试验 re-check test台架试验 bench test强化试验 hop-up test发动机试验台 engine test bed底盘测功机 chassisdynamometer测功机 dynamometer水力测功机hydraulic dynamometer电涡流测功机eddy current dynamometer电力测功机 electricdynamometer扭矩仪 torque meter转速表 tachometer温度测量 thermometry温度测量仪器thermometric instruments空气流量测量air flow measurement热线风速仪 hot wireanemometer电子示功仪 electronicindicator燃烧分析仪 combustionanalyzer压力传感器 pressuretransducer精密声级计precision sound level meter排放 emission排放物 emission排气污染物 gaseous pollutant蒸发排放物 evaporativeemission曲轴箱排放物 crankcaseemission漏气 blowby gas氨氧化物 oxids of nitrogen一气化碳 carbon monoxide碳氢化合物 hydrocarbon甲烷 methane无甲烷碳氢化合物non-methane hydrocarbons光化学活性碳氢化合物photochemically reactivehydrocarbons微粒物 particulated matter黑烟 black smoke蓝烟 blue smoke白烟 white smoke碳烟 soot光化学烟雾smog臭味 odor丙烷 propane排放浓度 concentration ofemission排气烟度 exhaust smoke先期排气 initial exhaust亚临界排气 subcritical exhaust超临界排气 supercriticalexhaust强制排气 forced exhaust自由排气 free exhaust排气提前角 exhaust advance angle排气迟后角 exhaust lag angle 排气热损失 exhaust heat loss 排气净化 exhaust purification 排气背压 exhaust back pressure残余废气 residual gas排气有害成分poisonous exhaust composition 柴油机排烟 diesel smoke综合排放浓度 composite concentration of exhaust emission综合排放质量 composite mass of exhaust emission排放系数 emission factor排放率emission index质量排放量 mass emission比排放量 brake specific emission排放物控制系统emission control system排气排放物控制系统exhaust emission control system 二次空气 secondary air二次空气分配歧管secondary air distribution二次空气控制阀secondary air control valve二次空气转换阀secondary air switching valve二次空气转流阀secondary air diverter valve二次空气喷射装置secondary air injection system 二次空气喷射管secondary air injection tube二次空气喷射减速压阀secondary air injection relief valve脉动空气装置 pulsating air system 二次空气泵 secondary airpump曲轴箱排放物控制系统crankcase emission controlsystem曲轴箱双通风系统crankcase closed system曲轴箱单通风系统crankcase sealed system曲轴箱强制通风装置positive crankcase ventilationPCV阀 PCV valve蒸发排放物控制系统evaporative emission controlsystem活性碳罐贮存装置charcoal canister storage system活性碳罐 charcoal canister曲轴箱贮存装置crankcase storage system空气滤清器贮存装置air filter storage system燃油箱止回阀 fuel tank checkvalve油气分离器fuel and vapor separator清除阀 furge valve催化转化系统catalytic converting system催化燃烧分析仪catalytic combustion analyzer催化剂 catalyst转化器 converter催化转化器 catalytic converter轴流式转化器AXIAL FLOW TYPECONVERTER径流式转化器RADIAL FLOW TYPECONVERTER下流式转化器down flow type converter上流式转化器up flow type converter双床式转化器 dual bedconverter单床式转化器 single bedconverter氧化型催化剂 oxidationcatalyst还原型催化剂 reductioncatalyst三元催化剂 three-way catalyst贵金属催化剂 noble metalcatalyst普通金属催化剂base metal catalyst稀土催化剂 rare earth catalyst催化剂耗损 catalyst attrition催化剂收缩 catalyst shrinkage催化剂中毒 catalyst poisoning比表面积 specific surface area空速 space velocity载体涂料 washcoat双重催化系统 dual -catalystsystem催化箱 catalyst container载体 substrate整体式载体 monolithicsubstrate颗粒式载体 pelleted substrate转化效率 conversion efficiency熄灯温度 light-off temperature热态反应系统thermal reacting system热反应器 thermal reactor反应式歧管 reactive manifold过热保护装置over heating protection system过热警报装置over heating warning system排气口衬套 exhaust port liner后燃器 after burner排气再循环系 EGR system排气再循环exhaust gas recirculation节气门前EGR系统above throttle valve EGRsystem节气门后EGR 系统below throttle valve EGRsystem。

英语发动机介绍作文

英语发动机介绍作文Introduction to Engines。

An engine is a machine that converts fuel into energy to power a vehicle or other machinery. There are many types of engines, including internal combustion engines, steam engines, and electric engines.Internal combustion engines are the most common type of engine used in vehicles. They work by burning fuel inside the engine to create energy. There are two types ofinternal combustion engines: spark-ignition engines and compression-ignition engines. Spark-ignition engines, also known as gasoline engines, use a spark plug to ignite the fuel and air mixture in the engine. Compression-ignition engines, also known as diesel engines, use compression to ignite the fuel and air mixture.Steam engines were once widely used in transportation and industry. They work by heating water to create steam,which then powers the engine. Steam engines are not as common today because they are less efficient than internal combustion engines.Electric engines are becoming more popular as technology advances. They work by using electricity to power the engine. Electric engines are often used in hybrid and electric vehicles.Engines are an important part of modern society. They power our cars, trucks, trains, and planes, as well as many other machines. As technology continues to advance, engines will continue to evolve and become more efficient and environmentally friendly.。

汽车专业英语U1 L1(发动机部分)

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一台汽车发动机往往具有3个以上的汽缸，对于汽车发动机主要的分类方式是根据汽缸的布局及排列方式来划分。一般有直列L型、V型、W型以及水平对置B型等几种。
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直列发动机(Line Engine)
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V型排列六缸发动机(V-shape)
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W型发动机(W-shape)
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水平对置发动机(Horizontally Opposed
Stroke . /strəuk / n. 打击；中风；笔画；冲程；尝试；轻抚
13
Clissfiled by cooled ways（按冷却方式分类）
水箱，通过水泵作用，水通过水道流通整个汽缸体，进行降温。
水冷却式发动机
Water coolet engine
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风冷，通过空气气流与风扇作用，空气/风通过发动机整个汽缸体，进行降温。
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Cooling
system (冷却系统)
‫ﮭ‬Starting system (起动系统)
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Lubrication
system (润滑系统)
Ignition
system (点火系统)
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Fuel
supply system (燃油供给系统)
intake
system (进气系统)
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23
•汽油机包括哪两大系统？
Crank-connecting rod mechanism
曲柄连杆机构
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配气机构
Valve mechanism
气门机构
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三、发动机的四大工作行程
Intake 进气
Compression 压缩
Power 做功

汽车专业英语_2_AUTOMOTIVE ENGINE讲解

Internal combustion
内燃机作为汽车.拖拉机.摩托车.工程机械. 船舶.航空.农业.林业. 军队.等各行各业的动力装置，应用极为广泛，
Chapter 2 AUTOMOTIVE ENGINE
New Words
longitudinal [lɔndʒiˈtju:dinl] adj. 纵向的，经度的 transverse [trænsˈvɜ:s] adj. 横向的，横断的 reciprocate [rɪˈn] v. 旋转；n．旋转 piston [ˈpistən] n. 活塞 ignite [iɡˈnait] v. 点火，点燃 rub [rʌb] v. 摩擦，擦 quart [kwɔ:t] n. 夸脱(容量单位) reservoir [ˈrezəvwɑ:] n. 油箱 mechanical [miˈkænikəl] adj. 机械的，机械制的，机械似的，呆板的 enclosed [inˈkləuzd] adj. 被附上的 gallon [ˈɡælən] n. 加仑 stroke [strəuk] n. 冲程，行程
译文：汽车发动机的功用是汽车行驶提供必需的动力。发动机通过它内部的燃料燃烧来产生动力。由于发动机在其内部燃烧燃料，所以发动机被称作内燃机。
Engines may be fueled by gasoline, propane （ LPG-liquefied petroleum gas） , or diesel fuel. Compressed natural gas （CNG） may also be used in some vehicles.
Chapter 2 AUTOMOTIVE ENGINE
PHRASES AND EXPRESSIONS

汽车专业英语原文翻译

第一单元发动机分类及工作原理课文A发动机的分类所有的汽车发动机都是内燃机（ICE),就是将燃油在气缸内进行燃烧，并将燃烧产生的膨胀压力转变成转动力，用来驱动汽车。

所以说，发动机是动力源, 并被认为是汽车的心脏。

汽车发动机根据工作方式分为往复式发动机和转子发动机：报据发动机燃烧的燃料分为汽油机和柴油机：根据发动机的气缸数量和气缸排列方式分为直列发动机、V型发动机、对置式发动机和W型发动机。

往复式发动机和转子发动机往复式发动机也称为活塞式发动机。

该发动机采用一个或多个活塞在气缸内上下运动或前后运动，将压力转变为转动动能传递给汽车驱动轮（见图1-1)。

往复式发动机广泛应用现代汽车上。

转子发动机是于1954年研发出来的。

如图1-2所示，在该发动机中，有个三角形的转子在燃烧室内旋转。

膨胀气体使转子旋转，产生动力并排出废气。

转子发动机没有活塞和气门等往复部件。

转子发动机产生马力大、无振动，但其燃油消耗比往复式发动机要高。

汽油机和柴油机汽油机以汽油作为燃料。

采用火花塞点燃缸内的可燃混合气，产生动力使汽车行驶，如图1-3a所示。

汽油机也称为火花点燃式发动机。

该发动机的特点是转速高，运行平顺，结构简单，重量轻，成本低。

几乎所有轿车都采用汽油机。

柴油机以柴油作为燃料。

该发动机的工作原理足通过压缩缸内的空气使其升温，冉使喷油嘴喷入的柴油燃烧，产生动力驱动汽车(见图1-3b)，所以也称为压燃式发动机。

柴油机要比汽油机的动力更强劲，燃油经济性更好。

常见于所有的大型货车、客车和部分轿车上。

直列发动机，V型发动机，水平对置式发动机，W型发动机通过气缸数最和气缸排列方式可以识别发动机结构。

当今所有的紧凑型轿车都配有4缸发动机，一些中型级轿车配有6缸发动机，大型轿车配有8缸或12缸发动机。

在多气缸发动机上，气缸通常以四种排列方式中的一种排列，有：直列式、V型、水平对置式和W型。

直列式发动机中的气缸按直线排列，采用一个气缸蓝。

几乎所有4缸发动机都采用该种排列（兄阁1-4)。

汽车专业英语U1-L1(发动机部分)

35
. Camshaft forces the intake valve open automatically at or slightly before the piston starts down. The air-fuel mixture is drawn into the cylinder. At the same time, the exhaust valve remains closed during this downward movement. This valve closure prevents the entering air-fuel charge from escaping through the exhaust port. After the piston reaches the Bottom Dead Center （BDC） of its first stroke, the cylinder is practically full of an air-fuel charge. The drawing of an air-fuel charge into the cylinder in this manner, during the downward movement of the piston, constitutes the intake stroke （Fig.1-2a
• Which is called the “heart” of Automobile?
be called of ------ (被叫做------)； heart (心脏)；
中文：哪部分被称作是汽车的心脏？
发动机
5
Part one
Automobile Engine 汽车发动机

汽车英语之汽车发动机介绍

汽车英语之汽车发动机介绍Automobile engine: apparatus that converts fuel to mechanical energy to power a car.汽车发动机引擎：是将燃料转换成机械能从而发动汽车的装置。

Air filter: device that removes impurities from air passing trough it.空气滤清器：将杂质从空气过滤槽中去除。

PVC hose: vinyl tube.PVC 软管：聚乙烯管。

Filter hole: cylindrical part forming the opening of the oil container.滤孔：油箱扣的圆柱形部分。

Cylinder head cover: removable cover on the upper part of the motor.汽缸盖：电机上部可拆卸盖板。

Spark plug cable: cable connecting the spark plug to the distributor cap.火花塞电缆：将火花塞连接到分电器盖上的电缆线。

Spark plug cover: spark plug cover.火花塞盖：火花塞盖Spark plug: ignition device of an internal combustion engine.火花塞：内燃机点燃装置。

Exhaust manifold: system that collects spent gases.排气歧管：收集已用尾气的系统。

Dip stick: instrument that measures the level of oil in a motor.Dip 棒：测量发动机里油量水平的工具。

Flywheel: wheel that, while turning, regulates the speed of the engine.调速轮：在行驶中调整引擎速度的车轮。

介绍发动机的英语作文

Engines: The Heart of Modern MachineryEngines are the lifeblood of modern machinery, powering everything from cars and aircraft to generators and pumps. They convert various forms of energy into mechanical work, enabling us to perform tasks efficiently and effectively. In this article, we will explore the workings of engines, their types, and their significance in our daily lives.Engines can be classified into several types based on their construction and operation. Internal combustion engines (ICEs) are the most common type, found in most automobiles and many other applications. These engines use a controlled explosion within a cylinder to create force and power. The two main types of ICEs are gasoline engines and diesel engines, which differ in their fuel type and ignition method.Gasoline engines use spark ignition to ignite the air-fuel mixture, while diesel engines rely on compression ignition. Both types have their advantages and disadvantages, with gasoline engines being lighter and more suitable for smaller, lighter vehicles, while diesel engines offer better fuel efficiency and torque.Another type of engine is the external combustion engine, which uses a heat source external to the working fluid to create power. Steam engines and Stirling engines are examples of external combustion engines. Steam engines were once widely used in industry and transportation but have been replaced by ICEs in most applications due totheir lower efficiency.Electric motors are also becoming increasingly popular as an alternative to ICEs, particularly in electric vehicles (EVs). Electric motors convert electrical energy directly into mechanical energy, offering smooth acceleration, silent operation, and reduced emissions. However, the range and charging infrastructure of EVs are still limitations that need to be addressed.Engines are also classified based on their configuration, including inline, V-type, flat (or boxer), and radial engines. Inline engines have all their cylinders aligned in a straight line, while V-type engines have the cylinders arranged in a V shape. Flat engines have their cylinders arranged horizontally opposite each other, andradial engines have the cylinders arranged radially around a central crankcase.Engines are also categorized by their displacement, which is the volume of air or fuel mixture displaced by each cylinder during one complete power stroke. Engine displacement is usually measured in cubic centimeters (cc) or cubic inches (ci) and is a key factor in determining an engine's power output.Engines are essential to our modern way of life, powering everything from the smallest handheld devices to the largest industrial machines. They have enabled us to travel greater distances, perform heavier tasks, and achieve greater efficiencies than ever before. As technology continues to advance, we can expect engines to become more efficient, powerful, and environmentally friendly, driving further progress and innovation in the future.**发动机：现代机械的心脏**发动机是现代机械的心脏，为从汽车和飞机到发电机和泵的所有设备提供动力。

汽车英语——汽车发动机

Lesson T hreeAutomobile EnginesUseful sentences:1.The engine is generally considered the “heart" of an automobile.发动机一般被看作是汽车的“心脏”。

2.There are various type of engines such as electric motors, steam engine and internalcombustion engines.有着各种各样的发动机，如电动机、蒸汽机和内燃机。

3.The internal combustion engine seems to be the one most commonly used in the automotivefiled.在汽车领域里内燃机似乎使用得最广泛的发动机。

4.According to the fuel engine used, internal combustion engines are further divided intogasoline engines, kerosene engines, diesel engine, etc.据所用燃料，内燃机可分为汽油机、煤油机、柴油机等。

5.Most automobile engines operate on a four stroke cycle.大多数发动机为四行程发动机。

6.The power production cycle consists of four piston strokes in an engine.产生动力的循环由发动机内活塞往返四个行程组成。

7.The first stroke draws the combustible mixture into cylinder.第一行程把可燃气吸进气缸。

8.The second stroke compresses the mixture.第二行程压缩混合气。

英文介绍发动机

As we all know, Engine is the heart of the car and it plays a grate influence on mechanical machine. Now, I am going to give you an overview of Engine, then go on to tell you about the basic structure and finally I will talk to you about the Engine performance index. Simply speaking, engine is an energy conversion institution, upcoming gasoline or gas heat, through the gas cylinder in seal burning, to push piston expenditure then turns the energy into mechanical energy, which is the most basic principle of Engine.Firstly, because the principles of engine work similar, the basic structure is the same. Gasoline engine is usually composed of five systems and two large organizations and the diesel engine is usually composed of two big institutions and four system composition (no ignition department).Ok, I will now move on to the Engine assembly, it mainly composed of the following aspects: Crank rod system, Valve-train, Fuel per cycle, Cooling department, Lubrication system, Ignition department and starting department.Finally, I’d like to tell you about the Engine performance index. It used to evaluate the engine performance characteristics and works as the criterion basis to evaluate all kinds of engine performance.。

介绍发动机的英语作文

介绍发动机的英语作文The Essence of an Engine: Powering the Modern World.The engine, a device that converts energy into mechanical work, is the heart of many machines, from automobiles to aircraft, from power plants to industrial machinery. It is a testament to human ingenuity and a driving force behind the modern industrial revolution. The history of the engine is intertwined with the development of civilization, as it has revolutionized transportation, communication, and industry.The earliest forms of engines date back to antiquity, where simple mechanisms like the wheel and axle or the lever were used to multiply human effort. However, it was the invention of the steam engine in the 18th century that marked a significant shift in the history of engines. The steam engine harnessed the power of steam to perform work, initially used in mining pumps and later adapted for transportation on land and water.The steam engine led to the Industrial Revolution, which transformed society by automating production processes and increasing the efficiency of work. As the demand for more powerful and efficient engines grew, innovations like the internal.。