Four stroke engine with combined oil pump and filter assembly

Details Four stroke engine with combined oil pump and filter assembly Four stroke engine with combined oil pump and filter assembly

1994-06-03

1996-09-24

Solis, Erick R.

Internal-combustion engines

Lubricators

Crankcase, pressure control

184 31, 2104165, F01M 1103

Patent

active

055580580

ABSTRACT:
Disclosed herein is an oil pump assembly comprising a housing member including a first mounting surface, a cover member mounting surface spaced from the first mounting surface, a bore extending from the cover member mounting surface and including, adjacent the cover member mounting surface, a counter bore, an oil supply passage extending between the first mounting surface and the cover member mounting surface for communication with an oil supply source, and an oil delivery passage extending between the first mounting surface and the cover member mounting surface for communication with an oil delivery conduit, a cover member including a housing member mounting surface fixed to the cover member mounting surface of the housing member, an other mounting surface, an oil supply recess located in the housing member mounting surface and communicating with the counter bore in the housing member, an internal oil supply conduit communicating between the oil supply recess and the housing member mounting surface and communicating with the oil supply passage in the housing member, an oil discharge recess located in the housing member mounting surface and communicating with the counter bore in the housing member, an internal oil discharge passage communicating between the oil discharge recess and the other mounting surface, and an internal oil delivery passage extending between the housing member mounting surface and the other mounting surface and communicating with the oil delivery passage in the housing member.

REFERENCES:
patent: 3572509 (1971-03-01), Dexter
patent: 3598237 (1971-08-01), Aspinwall
patent: 4622136 (1986-10-01), Karcey
patent: 5207898 (1993-05-01), Hodgkins
patent: 5236064 (1993-08-01), Wagoner
patent: 5452695 (1995-09-01), Bedi

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