Mechanically-enabled hydraulically-actuated electronically-contr

Details Mechanically-enabled hydraulically-actuated electronically-contr Mechanically-enabled hydraulically-actuated electronically-contr

1997-10-14

1999-08-03

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123450, F02M 700

Patent

active

059311398

ABSTRACT:
A fuel injection system includes a fuel injector that defines an actuation fluid cavity, a fuel inlet and a nozzle outlet. A source of relatively high pressure actuation fluid is connected to the actuation fluid cavity via an actuation fluid supply passage. A fuel fluid supply passage extends between the fuel inlet and a source of relatively low pressure fuel fluid. A mechanically actuated valve is attached to the actuation fluid supply passage, and is moveable between an open position in which the actuation fluid supply passage is open and a closed position in which the actuation fluid supply passage is closed.

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