培训资料1-发动机技术参数及基本结构

Transparent View 透视图
Partial Assembly 部装图
Crankshaft 曲轴
Crankshaft 曲轴
Crankshaft 曲轴
EGR Layout EGR布局图
谢 谢 Thank you
中冷EGR 平衡轴（可选）
R 425DOHC DCharacteristics 性能指标
Engine rpm range: 发动机转速范围 Oil consumption: 机油耗 Fuel consumption: 燃油耗 Blow-by: 漏气量 Cold startability: 低温启动性能 750 – 4800 rpm ≤ 0. 22 g/kWhr 215 g/kWhr @ peak torque 256 g/kWhr @ max. power 40 L/1’ @ max. power 5 sec. @ -20°C (10W oil) 6 sec. @ -25°C (0W/5W oil)
Components 部件
R425DOHC
Cylinder Head 气缸盖
R425DOHC
Cylinder Head + Valves 气缸盖+气门组
R425DOHC
Cylinder Head + Vertical Injectors
R425DOHC
Cylinder Head + Valve Train
R 425DOHC
Fuel Injection System 燃油喷射系统
Bosch Common Rail 1350 bar Max. Pressure Bosch共规喷射系统，最大喷射压力为1350 bar. ECU: EDC 16 电控单元：EDC 16 Low Pressure Pump: not needed 低压泵：不需要
Finger follower actuated valves with hydraulic adjusters
共轨喷射系统 皮带传动凸轮轴及喷油泵 齿轮传动油泵、真空
Belt-driven camshaft and injection pump
泵、平衡轴
Gear train for oil pump, vacuum pump and balance shaft Balance shafts (available) Cooled EGR
低排放 Low Emission
– 达到欧三排放并具备欧四能力 Euro Ⅳ capability
R425DOHC
Specifications and Technical Data 说明书和技术参数
R 425DOHC
Cast iron crankcase and wet liners Aluminum crankshaft supports Aluminum cylinder head Gallery cooled pistons
Block 气缸体
R425DOHC
Crankshaft and Con. Rod Assy
R425DOHC
Balance Shaft Drive 平衡轴传动
R425DOHC
Timing Drive 正时传动
R425DOHC
Belt Cover 皮带罩壳
R425DOHC
Exploded View 分解视图
R425 DOHC Engine
Basic Engine Data 发动机基础参数
– – – – – – – – – – – – – – – – Configuration 形式 Displacement 排量 Bore × Stroke 缸径×行程 Max power @4000 rpm 最大功率 / 4000 rpm Max Peak Torque @ 2000 rpm) 最大扭矩/ 2000 rpm Combustion System 燃烧系统 Compression Ratio 压缩比 Specific power升功率 Min BSFC最小燃油消耗率 Air Induction 进气方式 Block 气缸体 Cylinder Head 气缸盖 Emission Devices 排放装置 Emissions 尾气排放水平 Injection System 燃油喷射系统 Valve Train 气门机构 In-Line 4 2499 cc 92mm x 94 mm 105 kW (143 HP)±5％ 340 Nm±5％ Direct Injection 直接喷射 17.5 : 1 42KW/liter 205g/KWh Turbocharged / intercooler 增压 / 中冷 Cast Iron 铸铁 One piece, in aluminium 整体式，铝缸盖 Catalytic converter, Cooled EGR 催化转换器，中冷EGR EU. 3（具备EU4能力） Electronically Controlled Common Rail, 电控共轨 Dual Overhead Camshaft, 4 Valves / Cylinder (DOHC) 双顶置凸轮轴，4气门 / 气缸
765
710
630
Right view 右视
Front view 前视
Back view 后视
性能卓越的高速直喷柴油机 State-of-the-Art HSDI Engine
噪声低 Low noise 比功率高 High power
– R425 DOHC柴油机进行增压中冷，比功率为 42kW/L，在柴油机中处于领先水平。 R425 DOHC is TCI Diesel Engine, The power is 42kW/L.
– 外特性最低油耗实测230g/(kWh)，最低工况点油耗 195 g/KW.H，具有优秀的经济性. The min. fuel consumption is 230g/(kWh) in the Full Throttle Performance test. Min. fuel consumption is 195g/(kWh), with high economy
铝制缸盖 内冷式活塞 4气门双顶置凸轮轴 铸铁湿式缸套inder with double overhead camshaft Central vertical injector position Common rail injection system
喷油器中央垂直布置
大扭矩 High Torque
– 外特性最大扭矩为340Nm,有利于整车的加速性及操纵 性。 The peak torque is 340Nm, satisfied with the vehicle’s acceleration and the drive ability is perfect
低油耗
Dimensions （Base Engine) 结构尺寸（基础发动机）
– – – – Length Width Height Weight (dry) 长 宽 高 重量（净重） 710 mm 630 mm 765mm 220 kg
VM R425 DOHC 柴油机总成外形尺寸 VM R425 DOHC Diesel Engine Assy. Dimensions
R425DOHC
Valve Train 气门传动机构
R425DOHC
Ports 气道
R425DOHC
Head Cover 气缸盖罩
R425DOHC
Intake Manifold 进气歧管
R425DOHC
Injection System 喷射系统
R425DOHC
Block 气缸体
R425DOHC
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介绍流程:
江铃R425DOHC发动机基本情况介绍 江铃R425DOHC装配工艺 江铃R425DOHC常见故障及维修 江铃R425DOHC电控系统概述
江铃 R425DOHC 柴油机 基本情况介绍
Basic Introduction of jiangling R425DOHC Engine