Fuel metering device for fuel injection pumps

Details Fuel metering device for fuel injection pumps Fuel metering device for fuel injection pumps

1982-09-13

1984-10-09

Moy, Magdalen Y. C.

Internal-combustion engines

Charge forming device

Fuel injection system

123460, 13761421, 1376142, F02M 5100

Patent

active

044755139

ABSTRACT:
A fuel metering device for a fuel injection pump is proposed in which the amount of fuel to be injected is metered by means of a magnetic valve. An electro-magnetic valve and a back pressure valve are placed in series in the fuel supply channel leading to the pump work chamber of the fuel injection pump, whereby the back pressure valve places the closing element of the magnetic valve in the open position during the supply stroke of the fuel injection pump, so that only a small holding current is required to keep the magnetic valve open. Rapid switching of the magnetic valve is achieved by a mechanical closing by means of a closing spring of the magnetic valve after the exciter current is switched off.

REFERENCES:
patent: 2050430 (1936-08-01), Grickson
patent: 2969088 (1961-01-01), Kramer
patent: 3183932 (1965-05-01), Karpus, Jr.
patent: 3538951 (1970-11-01), Bownass
patent: 3724436 (1973-04-01), Nagata et al.
patent: 4030517 (1977-06-01), Pyle

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