Fuel injection system

Details Fuel injection system Fuel injection system

1975-07-21

1976-11-30

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139AL, 123139AT, F02M 3900

Patent

active

039942732

ABSTRACT:
A fuel injection system for externally ignited internal combustion engines in which fuel is individually metered to each injection valve through mutually displaceable metering valves. A diaphragm-type pressure valve is disposed between each metering valve and each injection valve. One of these valves is a differential pressure valve, which maintains a constant pressure difference across the metering valve to which it is connected. The remainder of these diaphragm valves are pressure equalizing valves, controlled by the output pressure of the differential pressure valve to maintain the same constant pressure difference across each of the remaining metering valves. The injection valve supplied with fuel by the differential pressure valve, opens at a higher fuel pressure than the remaining injection valves, thus also serving as a pressure valve. Additionally, the pressure setting of the differential pressure valve can be changed, when required, in dependence on a particular engine parameter by other control means.

REFERENCES:
patent: 3867917 (1975-02-01), Zeyns et al.
patent: 3896778 (1975-07-01), Zeyns et al.
patent: 3942497 (1976-03-01), Schwartz
patent: 3949713 (1976-04-01), Rivere

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