Fuel injection pump

Details Fuel injection pump Fuel injection pump

1988-04-27

1989-06-20

Miller, Carl Stuart

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123506, F02M 3900

Patent

active

048401552

ABSTRACT:
A fuel injection pump, capable of providing a preliminary fuel injection and a main fuel injection, includes a pump piston movable in a housing to define a pump working chamber which is connected with a fuel injection valve during the pumping stroke of the piston. The working chamber is relieved by the valve-closing member of the pressure valve. A magnetic valve which controls the function of the pressure-closing member is provided in the pump. An opening pressure of the pressure valve is greater than that of the fuel injection valve so that the preliminary injection is obtained with the initially open magnetic valve whereas the duration of the main fuel injection is controlled by the closed magnetic valve.

REFERENCES:
patent: 4510908 (1985-04-01), Etsele
patent: 4530337 (1985-07-01), Laufer
patent: 4546749 (1985-10-01), Igashira
patent: 4633836 (1987-01-01), Faupel
patent: 4745898 (1988-05-01), Egler

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