Cylinder head assembly

Details Cylinder head assembly Cylinder head assembly

1992-12-23

1993-08-17

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123 9041, 123 9044, 74519, 74559, F01L 118

Patent

active

052359425

ABSTRACT:
A cylinder head assembly is disclosed for an internal combustion engine which has a cylinder head with a reciprocal valve member. A rocker arm is pivotably positioned in the cylinder head in a low and compact manner for actuation of the valve member. Camming surfaces are located between a rotatable shaft and an interior surface of the rocker arm. In a preferred form, the rocker arm has a yoke shaped body formed by an elongated top bar and an enclosed loop hanging down from the bar to define an internal cavity for camming contact with a cam member at a lower portion of the loop to effect a dragging action of the rocker arm in a manner substantially parallel to the valve member.

REFERENCES:
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patent: 4793297 (1988-12-01), Fujii et al.
patent: 5046462 (1991-09-01), Matayoshi et al.
patent: 5095861 (1992-03-01), Dove, Jr.

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