Oil passage structure for engine

Details Oil passage structure for engine Oil passage structure for engine

F - Mech Eng,Light,Heat,Weapons

01

M

F01M 11/02 (2006.01) F16H 7/08 (2006.01)

Patent

CA 2436933

To provide an oil passage structure for an engine in which a tensioner arm is in sliding-contact with a cam chain for speed-reducing a rotational power of a crankshaft into a half and transmitting the resultant power to camshafts for driving an intake valve and an exhaust valve, and a screw-type lifter having a lifter rod with its one end being in contact with the tensioner arm is provided in a cylinder head, wherein the oil passage structure is intended to certainly feed oil to the screw type lifter while preventing the reduction in pressure of oil fed to the cylinder head without increasing the discharge pressure of an oil pump. [Solving Means] An oil passage 126 to which oil is fed from an oil pump 108 is formed so as to extend round in a cylinder head 23, and the downstream end of the oil passage 126 is communicated to a screw type lifter 94.

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