Fuel injection system

Details Fuel injection system Fuel injection system

2005-06-09

2008-10-21

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C123S456000

Reexamination Certificate

active

07438057

ABSTRACT:
A common rail fuel injection system having a low-pressure region from which a high-pressure fuel pump acts on fuel with high pressure and delivers it to a high-pressure fuel accumulator from which fuel is supplied to injectors that inject the highly pressurized fuel into the combustion chamber of an internal combustion engine in which the high-pressure pump, the high-pressure fuel accumulator, and the injectors are associated with a high-pump, pressure region. In order to avoid undesirable delays in the starting of the internal combustion engine, a check valve device is connected between the low-pressure region and the high-pressure region so that when a negative pressure is generated in the high-pressure region, fuel flows from the low-pressure region into the high-pressure region.

REFERENCES:
patent: 5404855 (1995-04-01), Yen et al.
patent: 6497217 (2002-12-01), Kojima
patent: 6792918 (2004-09-01), Halsall
patent: 7066152 (2006-06-01), Stroia et al.
patent: 2003/0077184 (2003-04-01), Ishimoto
patent: 2004/0250795 (2004-12-01), Stroia et al.
patent: 103 32 484 (2005-02-01), None
patent: 1 275 842 (2003-01-01), None

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