Roller valve lifter with anti-rotation member

Details Roller valve lifter with anti-rotation member Roller valve lifter with anti-rotation member

1990-10-05

1991-06-11

Okonsky, David A.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9035, 123 9048, F01L 114

Patent

active

050223569

ABSTRACT:
A roller valve lifter and member for preventing rotation of the lifter in its bore, especially useful for high speed automotive internal combustion engines. The lifter has a flat or non-cylindrical portion along its length. A non-movable member has an elongated portion received within the bore that cooperates with the non-cylindrical portion to prevent rotation. The non-movable member is located along one side in the bore, out of alignment with a transverse oil passage that communicates with plural lifter bores in series.

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