Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
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.
Barnhardt Thomas L.
Caya Donald M.
Briggs & Stratton Corporation
Lo Weilun
LandOfFree
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