Invention Grant
- Patent Title: Fuel system having purging capability for reduced fuel dribble
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Application No.: US15796916Application Date: 2017-10-30
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Publication No.: US10378495B2Publication Date: 2019-08-13
- Inventor: Bobby John , Glen Martin , Jonathan W. Anders , Robert Campion
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Deerfield
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Deerfield
- Agent Jonathan F. Yates
- Main IPC: F02M47/06
- IPC: F02M47/06 ; F02M55/00 ; F02M61/18

Abstract:
A fuel system includes a fuel injector having a fuel passage and a purging fluid passage formed therein. A nozzle tip inner surface defines a sac forming a blind end of the fuel passage in the fuel injector. A coaxial concentric check assembly includes a purging check movable to admit a purging fluid such as pressurized air into the fuel passage to purge the sac of fuel. Reduced injector dribble is observed from the purging of fuel.
Public/Granted literature
- US20190128228A1 FUEL SYSTEM HAVING PURGING CAPABILITY FOR REDUCED FUEL DRIBBLE Public/Granted day:2019-05-02
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