Oil supply system for engine

Details Oil supply system for engine Oil supply system for engine

2006-03-14

2006-03-14

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Lubricators

Crankcase, pressure control

Reexamination Certificate

active

07011069

ABSTRACT:
An oil supply system for an engine includes a pump body provided with a first outlet port and a second outlet port. The oil supply system further includes a hydraulic-oil-delivery passage, a first oil passage, a second oil passage and a return hydraulic passage. The valve body divides a hydraulic-oil receiving portion for receiving the hydraulic oil in the hydraulic-pressure control valve chamber into a first valve chamber and a second valve chamber. When the hydraulic pressure oil delivered to the hydraulic-oil-delivery passage is in a predetermined value, the hydraulic oil discharged out of the second outlet port is delivered to the hydraulic-oil-delivery passage via the first valve chamber. When the hydraulic pressure delivered to the hydraulic-oil-delivery passage exceeds the predetermined value, the hydraulic oil discharged out of the second outlet port is delivered to the hydraulic-oil-delivery passage via the second valve chamber.

REFERENCES:
patent: 3067689 (1962-12-01), Hause
patent: 5547349 (1996-08-01), Kimura et al.
patent: 5722815 (1998-03-01), Cozens
patent: 1 145 929 (1955-07-01), None
patent: 2598994 (1993-12-01), None
patent: 8-114186 (1995-08-01), None
patent: 8-210116 (1995-10-01), None

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