公开(公告)号：WO2010021889A1

公开(公告)日：2010-02-25

申请号：PCT/US2009/053539

申请日：2009-08-12

Applicant: CATERPILLAR INC. ,  FUELBERTH, David, L. ,  IBRAHIM, Daniel, R. ,  STOCKNER, Alan, R.

Inventor： FUELBERTH, David, L. ,  IBRAHIM, Daniel, R. ,  STOCKNER, Alan, R.

IPC: F02M61/16 ,  F02M61/20 ,  F02M47/06 ,  F02M61/04

CPC classification number: F02M55/02 ,  F02M63/0012 ,  F02M63/0054 ,  F02M63/0215 ,  F02M63/0225 ,  G05D7/0133

Abstract: A fluid leak limiter (48) for a high-pressure fuel injection system (12) is disclosed. The fluid leak limiter may have a body (50) at least partially defining a central bore (52) and having a fluid inlet (60) and a fluid outlet (62), a piston (54) reciprocatingly disposed within the central bore, and a spring (56) located to bias the piston toward a first flow-blocking position at which fluid from the fluid inlet is inhibited from flowing to the fluid outlet. The fluid leak limiter may also have a pin (80) configured to selectively lock the piston in a second flow-blocking position at which fluid from the fluid inlet is inhibited from flowing to the fluid outlet.

Abstract translation: 公开了一种用于高压燃料喷射系统（12）的流体泄漏限制器（48）。 流体泄漏限制器可以具有至少部分地限定中心孔（52）并且具有流体入口（60）和流体出口（62）的主体（50），往复地设置在中心孔内的活塞（54），以及 定位成将活塞偏压到第一阻流位置的弹簧（56），在该第一阻流位置处阻止来自流体入口的流体流向流体出口。 流体泄漏限制器还可以具有销（80），销（80）被配置为选择性地将活塞锁定在第二阻流位置，在该第二阻流位置处阻止来自流体入口的流体流向流体出口。