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U.S. Department of Energy
Office of Scientific and Technical Information

Rocker arm construction

Patent ·
OSTI ID:5042298
A rocker arm is described for an internal combustion engine, the rocker arm mounting thereon a concentrically mounted cam roller engaging and rotating with a cam on the rotatable cam shaft of the engine, the rocker arm being elongated and having side and end walls and a bottom wall, and comprising an open, generally flat-topped tub-like container. One end of the rocker arm is provided with a generally concave semi-spherical depression, so as to be supported on a complementary shaped semi-spherical member at a fixed height, and the other end of which engages the stem of a valve of the engine. The rocker arm pivotable about its fixed height end by means of the cam engaging the cam roller to thus operate the valve, the rocker arm functioning as a reservoir for oil in which the cam roller rotates. The cam roller is rotatably mounted on a roller shaft journaled in circular openings in the side walls of the rocker arm and having anti-friction means comprising needle bearings surrounding its supporting shaft.
Assignee:
W H Industries, Inc., Northvale, NJ
Patent Number(s):
US 4614171
OSTI ID:
5042298
Country of Publication:
United States
Language:
English