Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1992-11-30
1994-02-15
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
137569, F02M 3700
Patent
active
052857590
ABSTRACT:
A fuel system of an internal combustion engine comprises a fuel tank for storing fuel, a fuel injection valve disposed on the internal combustion engine, a fuel supply pipeline connecting between the fuel tank and the fuel injection valve, a fuel pump for supplying the fuel in the fuel tank to the fuel injection valve through the fuel supply pipeline, a fuel injection pressure regulator for regulating the fuel injection pressure of the fuel injection valve to a predetermined pressure, a fuel return pipeline through which surplus fuel from the fuel injection pressure regulator is returned into the fuel tank, and a pressure increasing device disposed in the fuel return pipeline and serving to increase the pressure in the fuel return pipeline above the pressure in the fuel tank while maintaining fuel pressure regulating function of the fuel injection pressure regulator.
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Terada Takehiko
Yamada Hirotada
Yonekawa Masao
Cross E. Rollins
Moulis Thomas
Nippondenso Co. Ltd.
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