Pumps – Expansible chamber type – Pumping member position controlled port
Patent
1986-07-17
1987-09-01
Smith, Leonard E.
Pumps
Expansible chamber type
Pumping member position controlled port
417490, F02M 5926
Patent
active
046906240
ABSTRACT:
A fuel injection pump for internal combustion engines having a diversion bore disposed in the pump cylinder and controlled by a control edge on the pump piston. The diversion bore is embodied as a stepped bore having a segment of smaller diameter and a segment of larger diameter downstream of the segment in the flow direction. A liner which is not vulnerable to cavitation is disposed in the segment and is held in its working position by a resilient device, and a return flow conduit is formed between a chamber of lower pressure and an inlet to the bore of the liner.
REFERENCES:
patent: 1854009 (1932-04-01), Wilkinson
patent: 2296357 (1942-09-01), Links et al.
patent: 3963384 (1976-06-01), Bastenhof
Greigg Edwin E.
Robert & Bosch GmbH
Smith Leonard E.
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