Internal-combustion engines – Poppet valve operating mechanism – Tappet
Reexamination Certificate
2006-03-07
2006-03-07
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Tappet
C123S090160, C074S569000
Reexamination Certificate
active
07007651
ABSTRACT:
An anti-rotation guide for a deactivation hydraulic valve lifter for an internal combustion engine. The guide includes a through bore accommodating of a hydraulic valve lifter and is sized such that the outer end of the lifter may be inserted into the through bore of the guide. The guide is securable to the engine such that the lifter is reciprocable within the guide. The guide is provided with two opposing keepers for mating with corresponding flats on the lifter to prevent rotation of the lifter. Further, a keyway means is provided in the guide and lifter to prevent the lifter being inserted into the guide 180° from the correct orientation.
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Delphi Technologies Inc.
Griffin Patrick M.
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