Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1997-10-17
2000-02-08
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
123456, 12317917, F02M 3704
Patent
active
060217634
ABSTRACT:
At the time of low temperature start up of a direct injection gasoline engine internal combustion engine, a pressure adjustment function of a low pressure pressure regulator is stopped, so that all of the fuel pumped from a low pressure fuel pump is supplied to a high pressure fuel pump. Moreover, the fuel from a high pressure fuel system is returned directly to a fuel tank. Hence vapor produced while the engine is stopped is discharged together with the fuel.
REFERENCES:
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patent: 5394844 (1995-03-01), Akimoto
patent: 5558068 (1996-09-01), Kunishima
patent: 5598817 (1997-02-01), Igarashi
patent: 5758622 (1998-06-01), Rembold
patent: 5794586 (1998-08-01), Oda
Kitayama Toru
Yoshihara Fumihiro
Miller Carl S.
Unisia Jecs Corporation
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