Finger follower lost motion valve actuation system with...

Internal-combustion engines – Poppet valve operating mechanism – Rocker

Reexamination Certificate

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Details

C123S090160, C123S090440

Reexamination Certificate

active

07600497

ABSTRACT:
An engine valve actuation system for an internal combustion engine is disclosed. The valve actuation system may include a longitudinally extending link member pivotally attached to an engine member. A longitudinally extending finger follower may be pivotally attached to the link member. The finger follower may include first and second contact surfaces spaced longitudinally from each other. A lost motion piston may contact the first contact surface of the finger follower and an engine valve assembly may contact the second contact surface of the finger follower. A means for receiving valve actuation motion, such as a cam follower, may be incorporated into the finger follower. A valve seating device may contact a third contact surface located on the link member, and a biasing spring may contact a fourth contact surface on the finger follower.

REFERENCES:
patent: 5022360 (1991-06-01), Cholewczynski
patent: 5485815 (1996-01-01), Shida
patent: 6085705 (2000-07-01), Vorih
patent: 6340010 (2002-01-01), Hara et al.
patent: 6349688 (2002-02-01), Gracyalny et al.
patent: 6971355 (2005-12-01), Roth

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