Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1998-11-10
2000-04-11
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9043, 140 82, F01L 118, F01L 146
Patent
active
060476753
ABSTRACT:
A valve actuator subassembly, such as a finger follower and a hydraulic lash adjuster or a rocker arm and push rod, are held together for shipping and installation in an engine valve train by a retainer clip made of wire or sheet, metal or plastic material. The retainer clip includes a U-shaped body having first and second nearly parallel legs interconnected at first ends by a resilient portion. The legs are adapted to resiliently engage opposite sides of a wall of a rockable actuator member having a raised portion on a first side aligned with a socket on a second side. The first leg includes a guide recess adjacent a second end and adapted to guidingly engage the raised portion on the first side of the wall. The second leg includes a gripping recess adjacent a second end and has a pair of opposed resilient edges adapted to frictionally grip nearly opposite sides of a cylindrical member, such as push rod or lash adjuster plunger, upon engagement of the cylindrical member with the socket in the wall of the actuator member. The resilient edges frictionally grip the cylindrical member at points nearly aligned on an axis normal to the directions of said legs from their first to their second ends so that the retainer clip frictionally retains said cylindrical member in the socket of the rockable actuator member in the subassembly positioned for installation in a valve train. Various embodiments are disclosed.
REFERENCES:
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patent: 5211143 (1993-05-01), Fontichiaro et al.
patent: 5775280 (1998-07-01), Schmidt et al.
Cichosz Vincent A.
General Motors Corporation
Lo Weilun
LandOfFree
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