Fuel injector and diesel engine comprising the same

Details Fuel injector and diesel engine comprising the same Fuel injector and diesel engine comprising the same

2005-05-24

2005-05-24

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S496000

Reexamination Certificate

active

06895937

ABSTRACT:
A fuel injector can reduce the smoke emissions generated during low load and decrease NOx during high load. The fuel injector comprises a first accumulator for accumulating a pressurized fuel, a second accumulator for accumulating a fuel having a higher pressure than the pressure of the fuel in the first accumulator, fuel injection valves to which the fuel from the first and second accumulators is supplied and thereby the fuel injection valves are opened, and the fuel is injected, fuel feeding pipes for feeding the fuel accumulated in the first and second accumulators to the fuel injection valves; a first valve mechanism which is provided at the fuel feeding pipe and which opens and allows the flow of the fuel in the first accumulator to the fuel injection valves, a second valve mechanism which is provided at the fuel feeding pipe and which opens and allows the flow of the fuel in the second accumulator to the fuel injection valves, and a control device for controlling the first and second valve mechanisms. The first accumulator and the first valve mechanism, and the second accumulator and the second valve mechanism, are provided in parallel to each other to the fuel feeding pipe. In a normal injection mode, the control device makes the first and second valve mechanisms open at the same time. In an injection rate control mode, the control device makes an open timing of the first valve mechanism earlier than an open timing in the normal injection mode.

REFERENCES:
patent: 5146894 (1992-09-01), Rembold et al.
patent: 5427066 (1995-06-01), Buckley et al.
patent: 5433182 (1995-07-01), Augustin et al.
patent: 5642714 (1997-07-01), Buckley
patent: 5727525 (1998-03-01), Tsuzuki
patent: 5732679 (1998-03-01), Takahasi et al.
patent: 5746180 (1998-05-01), Jefferson et al.
patent: 6220224 (2001-04-01), Matthies et al.
patent: 6237569 (2001-05-01), Stelzer et al.
patent: 6520152 (2003-02-01), Mahr et al.
patent: 6543420 (2003-04-01), Kohketsu et al.
patent: 6619263 (2003-09-01), Otterbach et al.
patent: 6792919 (2004-09-01), Kohketsu et al.
patent: 41 18 236 (1991-12-01), None
patent: 0 711 914 (1996-05-01), None
patent: 0785356 (1997-07-01), None
patent: 0 959 245 (1999-11-01), None
patent: 0 967 388 (1999-12-01), None
patent: 2 330 871 (1999-05-01), None
patent: 2001-73900 (2001-03-01), None
patent: 9517594 (1995-06-01), None
patent: 0104488 (2001-01-01), None
patent: 0114711 (2001-03-01), None
patent: 0114737 (2001-03-01), None
Keiki Tanabe et al., “Fuel Injection Control and Effects on Exhaust Emissions of a Next Generation Common Rail Fuel Injection System”, NCRS, No. 13, pp. 44-50, 2001.

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