Fuel cut-off device for fuel injection pumps for multi-cylinder

Details Fuel cut-off device for fuel injection pumps for multi-cylinder Fuel cut-off device for fuel injection pumps for multi-cylinder

1983-02-22

1985-01-08

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123481, 123446, F02D 1702

Patent

active

044921918

ABSTRACT:
Three way valves forming a fuel cut-off valve are arranged across respective injection pipes connected to injection nozzles associated with preselected cylinders of the engine. In a first valve position, the three way valves connect the injection pump body or bodies of the fuel injection pump to the respective injection pipes, and in a second valve position, they connect the injection pump body or bodies to a lower pressure zone in the pump. Preferably, the fuel cut-off valve is pneumatically operated for high speed valve position changing action.

REFERENCES:
patent: 2875742 (1959-03-01), Dolza
patent: 4098252 (1978-07-01), Abthoff et al.
patent: 4148289 (1979-04-01), Hewitt
patent: 4150651 (1979-04-01), Wade et al.
patent: 4297979 (1981-11-01), Kamleitner
patent: 4393825 (1983-07-01), Breeck et al.

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