Fuel supply apparatus

Details Fuel supply apparatus Fuel supply apparatus

1998-08-03

2000-02-08

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123510, 123514, F02M 4100

Patent

active

060217596

ABSTRACT:
A fuel supply apparatus having a cross sectional area S.sub.0 of a first low pressure fuel passage which is connected to a high pressure pump and which has a pressure regulator, a cross sectional area S.sub.1 of an orifice formed between the first low pressure fuel passage and a second low pressure fuel passage, and a cross sectional area S.sub.2 of the second low pressure fuel passage for supplying the low pressure fuel to the first low pressure fuel passage. Those cross sectional areas are set to satisfy a relationship of S.sub.1 <S.sub.0 <S.sub.2 such that the pressure pulsation generated at the pressure regulator is reduced, and the noise produced by the fuel supply apparatus is reduced.

REFERENCES:
patent: 3187733 (1965-06-01), Heintz
patent: 4526151 (1985-07-01), Tateishi
patent: 5297523 (1994-03-01), Hafner
patent: 5365906 (1994-11-01), Deweerdt
patent: 5752486 (1998-05-01), Nakashima
patent: 5762048 (1998-06-01), Yonekawa

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