Anti-rotation deactivation valve lifter

Details Anti-rotation deactivation valve lifter Anti-rotation deactivation valve lifter

2005-12-20

2005-12-20

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Tappet

C123S090160, C123S090500

Reexamination Certificate

active

06976463

ABSTRACT:
A valve deactivation lifter including means for restricting relative rotation between the pin housing and the lifter body. When used in a V-style or slant engine, a prior art deactivation lifter can be subject to oil drainage during engine shutdown if the oil supply port in the pin housing rests in the “down” position. In an improved lifter, relative rotation between the pin housing and the lifter body is limited and the pin housing is oriented such that the oil supply port is never on the underside of the pin housing. Rotation may be limited by any of several means, for example, a ball disposed in a dimple in the pin housing and extending into a longitudinal groove in the lifter body, and a flat on the pin housing and locking means installed in the lifter body to engage the flat and thus prevent rotation of the pin housing.

REFERENCES:
patent: 4739675 (1988-04-01), Connell
patent: 5361733 (1994-11-01), Spath et al.
patent: 5398648 (1995-03-01), Spath et al.
patent: 5431133 (1995-07-01), Spath et al.
patent: 5544628 (1996-08-01), Voigt
patent: 6164255 (2000-12-01), Maas et al.
patent: 6196175 (2001-03-01), Church
patent: 6513470 (2003-02-01), Hendriksma et al.
patent: 2002/0038642 (2002-04-01), Haas et al.
patent: WO 03/067038 (2003-08-01), None

Affiliated with

Also associated with

Rating

Anti-rotation deactivation valve lifter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-rotation deactivation valve lifter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-rotation deactivation valve lifter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3474547