Oil supply device for valve operating system having hydraulic tappet in internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1987
Grant Date -
N/A
app pub date -
May 13, 1986
filing date -
May 14, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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