Internal combustion engine gas feeding system

Details Internal combustion engine gas feeding system Internal combustion engine gas feeding system

2006-05-02

2006-05-02

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

Reexamination Certificate

active

07036491

ABSTRACT:
In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve brings about a pressure drop which depends upon a pilot-pressure signal that is sent thereto by a pilot solenoid valve. The electrical supply to the solenoid of said pilot solenoid valve is controlled by an electronic control unit according to the signal issued by a sensor of the pressure in the rail for the purpose of regulating the pressure in the rail at a desired level, according to the operating conditions of the engine.

REFERENCES:
patent: 2002/0062823 (2002-05-01), Ricco
patent: 2003/0168101 (2003-09-01), Sulatisky et al.
patent: 2003/0168102 (2003-09-01), Santinanavat et al.
patent: 0 155 538 (1985-02-01), None
patent: WO 99/15784 (1999-04-01), None

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