Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1995-06-05
1997-02-04
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel injection system
123198D, F02M 3704
Patent
active
055988237
ABSTRACT:
A flow of fuel is prevented from entering the intake manifold via the manifold vacuum passage in a fuel injection system having a source of liquid fuel under pressure in fluid communication with a least one fuel injector 28 mounted in an engine intake manifold 20 and a pressure regulator 68 having a first pressure chamber 82 in fluid communication with the source of pressurized fuel, a second pressure chamber 84 in fluid communication with the intake manifold 20, and a diaphragm 86 sealingly engaged therebetween for maintaining a predetermined pressure differential between the pressure chambers by an apparatus 78 operatively connected between the second pressure chamber 84 and the intake manifold 20 which prevents the flow of fuel from the second pressure chamber 84 to the intake manifold 20 in response to a pressure differential between the second pressure chamber 84 and the intake manifold 20 above a predetermined value.
REFERENCES:
patent: 1955037 (1934-04-01), Viel
patent: 2330650 (1943-09-01), Weiche
patent: 2429322 (1947-10-01), Lee
patent: 3112764 (1963-12-01), Anderson et al.
patent: 3351087 (1967-11-01), Welty
patent: 3960127 (1976-06-01), Vuaille
patent: 4050431 (1977-09-01), Jackson
patent: 5101793 (1992-04-01), Sample
Ford Motor Company
Godwin Paul K.
Miller Carl S.
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