Cryogenic pump for liquefied natural gas
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专利名称：Cryogenic pump for liquefied natural gas
发明人：Cory A. Brown,Adrienne M. Brasche,Daniel R.
Baldwin,Sudhindra K. Ayanji,Joshua W.
Steffen
申请号：US14820326
申请日：20150806
公开号：US10024311B2
公开日：
20180717
专利内容由知识产权出版社提供
专利附图：
摘要：A cryogenic pump for pumping liquefied natural gas (LNG) from a cryogenic
tank storing LNG includes a drive assembly and a pump assembly disposed along a pump
axis. The drive assembly includes a spool housing having a plurality of spool valves arranged around the pump axis, a tappet housing having a plurality of tappet bores with slidable tappets arranged around the pump axis, and spring housing including a plurality of movably disposed pushrods urged upward by a plurality of associated pushrod springs. Hydraulic fluid received by a hydraulic fluid inlet in the drive assembly is directed by the spool valves to the tappet bores to move the tappets downward against the pushrods. To collect the hydraulic fluid, the lowermost spring housing also includes a collection cavity formed therein that can return the hydraulic fluid to a hydraulic fluid outlet.
申请人：Caterpillar Inc.
地址：Peoria IL US
国籍：US
代理机构：Leydig, Voit & Mayer, LTD.
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