Internal combustion engine

Details Internal combustion engine Internal combustion engine

1996-03-27

1997-07-08

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9041, 123 9045, 123 9038, 1231935, F01L 118, F01L 120

Patent

active

056450257

ABSTRACT:
The internal combustion engine includes a cast cylinder head having as-cast alignment ribs that align a squared-off fulcrum in the rocker assembly. The rocker arm also has two substantially flat surfaces that engage the planar sides of the fulcrum to minimize lateral movement of the rocker arm. The fulcrum is received between the cast alignment ribs. The ribs are biased from a major axis to insure proper fulcrum alignment during assembly without the use of a jig.

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Two photos of the same Ford Motor Company engine, first sold at least as early as 1993.

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