Pumps – Expansible chamber type – Pumping member position controlled port
Patent
1976-05-21
1978-04-11
Myhre, Charles J.
Pumps
Expansible chamber type
Pumping member position controlled port
123139AD, F04B 3910
Patent
active
040836622
ABSTRACT:
A fuel injection pump for internal combustion engines having a pump piston reciprocating in a cylinder to inject fuel from a working chamber into the engine cylinders and in which the termination of each injection is determined by an engine r.p.m. device which opens, or partially opens, a relief bore connected between the working chamber and a pump suction chamber. The outlets of the relief bore located on the surface of the pump piston are so formed so as to cooperate with the r.p.m. responsive device to match the injection requirements of the internal combustion engine. Several embodiments of the formed outlets are disclosed.
REFERENCES:
patent: 2746443 (1956-05-01), Meyer
patent: 2813523 (1957-11-01), Bischoff
patent: 3737258 (1973-06-01), Krauja et al.
patent: 3827832 (1974-08-01), Faupel
patent: 3942914 (1976-03-01), Hofer et al.
Hofer Gerald
Konrath Karl
Weiss Otmar
Argenbright Tony M.
Greigg Edwin E.
Myhre Charles J.
Robert & Bosch GmbH
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