Fuel injection for an internal combustion engine
Patent
·
OSTI ID:5581090
This paper describes a fuel injector for use in an internal combustion engine. It comprises: an injector body having a first cylindrical bore and a second cylindrical bore, the second cylindrical bore being coaxially positioned relative to and in communication with the first cylindrical bore; control means for metering a predetermined volume of fuel at high pressure; a metering barrel having a metering chamber for receiving the predetermined volume of fuel at high pressure, the metering barrel being connected to the injector body; a timing plunger chamber forming part of the second cylindrical bore and being in continuous fluid communication with the control means for metering the predetermined volume of fuel; a timing plunger adapted for movement within the timing plunger chamber; a coupling member adapted for movement within the first cylindrical bore; the coupling member and the timing plunger being in abutting relationship and being free to move independently within the first cylindrical bore and the second cylindrical bore respectively, the timing plunger motion being controlled by the control means to meter the predetermined volume of fuel; and an injection nozzle in communication with the metering plunger chamber for delivering the predetermined volume of fuel into the engine.
- Assignee:
- Cummins Engine Co., Inc., Columbus, IN (United States)
- Patent Number(s):
- US 5072709; A
- Application Number:
- PPN: US 7-501022
- OSTI ID:
- 5581090
- Country of Publication:
- United States
- Language:
- English
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