Oil supply device for valve operating system having hydraulic ta

Details Oil supply device for valve operating system having hydraulic ta Oil supply device for valve operating system having hydraulic ta

1986-05-13

1987-12-01

Cox, Ronald B.

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 9027, 123 9038, 123 9044, 123 9055, F01M 116

Patent

active

047096675

ABSTRACT:
In an oil supply device of a valve operating system mounted in a cylinder head of an internal combustion engine and operable to open or close intake and exhaust valves, there are juxtaposed an oil supply line for supplying a working oil into a hydraulic tappet of the valve operating system and a lubricating oil line for supplying a lubricating oil to those portions of a valve operating cam shaft which are to be lubricated, and orifice means for controlling the flow rate is provided in each the oil lines. The both oil lines are connected in communication to a main oil passageway upstream of the orifice means, the main oil passageway being connected to a source of a hydraulic oil. Air bleed means is provided in the oil supply line and disposed above the lubricating oil line in the central wall of the cylinder head.

REFERENCES:
patent: 2781750 (1957-02-01), Chayne
patent: 3521613 (1970-07-01), Celli
patent: 4621597 (1986-11-01), Kawada

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