Valve operating system for internal combustion engine

Details Valve operating system for internal combustion engine Valve operating system for internal combustion engine

1988-05-24

1989-11-21

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 9036, F01M 910

Patent

active

048814970

ABSTRACT:
A valve operating system for an overhead camshaft type automotive internal combustion engine. The valve operating system is comprised of a swing arm swingable upon rotation of a camshaft located over the swing arm. The swinging motion of the swing arm causes the reciprocal motion of intake or exhaust valve which is connected to one end section of the swing arm. The other end section of the swing arm is pivotally supported by the plunger of a hydraulic lifter in such a manner that the swing arm end section is in fitting contact with the tip end section of the hydraulic lifter plunger. A clearance is formed between the swing arm end section and the plunger tip end section and filled with lubricating oil which is supplied through an oil supply passage formed in the plunger of the hydraulic lifter, thereby accomplishing sufficient and efficient lubrication at the contacting and sliding surface between the swing arm and the hydraulic lifter plunger.

REFERENCES:
patent: 3153404 (1964-10-01), Slooten
patent: 3314404 (1967-04-01), Thompson
patent: 3502058 (1970-03-01), Thompson
patent: 4481913 (1984-11-01), Wirth
patent: 4481919 (1984-11-01), Honda et al.
patent: 4589383 (1986-05-01), Showalter
patent: 4690110 (1987-09-01), Nishimura et al.

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