Method and systems for a leakage passageway of a fuel injector
AssigneeGeneral Electric Company
InventorsSumit Kumar Das, Paul Gerard Nistler, Javier Rivera, Muthu Anandhan
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Abstract
Various methods and systems are provided for a leakage passageway for a fuel injector of a common rail fuel system. In one embodiment, a fuel injector for an engine comprises an injector accumulator, an injector flow limiter valve configured to control a flow of fuel from a common fuel rail and into the injector accumulator, and a leakage passageway coupled between the injector accumulator and an inlet of the injector flow limiter valve, the leakage passageway bypassing the injector flow limiter valve.
Claims20
A fuel injector for an engine, comprising:
- an injector accumulator;
- an injector flow limiter valve configured to control a flow of fuel from a common fuel rail and into the injector accumulator;
- and
- a leakage passageway coupled between the injector accumulator and an inlet of the injector flow limiter valve, the leakage passageway bypassing the injector flow limiter valve.
A fuel injector for an engine, comprising:
- an injector accumulator;
- a first passage coupled between a flow limiter valve and the injector accumulator, the flow limiter valve positioned in a high pressure fuel line, upstream of the fuel injector, the high pressure fuel line coupled to a common fuel rail;
- and
- a second passage, separate from the first passage, coupled between the injector accumulator and an inlet of the injector flow limiter valve, the inlet coupled to the common fuel rail.
A fuel injection system of an engine, comprising:
- a common fuel rail;
- a first fuel injector with a first leakage passageway coupled between a first injector accumulator and an inlet of a first injector flow limiter valve positioned in a first flow passage, the inlet of the first injector flow limiter valve coupled to the common fuel rail;
- and
- a second fuel injector with a second leakage passageway coupled between a second injector accumulator and an inlet of a second injector flow limiter valve positioned in a second flow passage, the inlet of the second injector flow limiter valve coupled to the common fuel rail.
Dependencies are inferred from the claim text.