Three dimensional cam cardanic follower valve lifter

Details Three dimensional cam cardanic follower valve lifter Three dimensional cam cardanic follower valve lifter

1988-12-09

1989-07-25

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9027, 123 9048, F01L 114, F01L 134

Patent

active

048503118

ABSTRACT:
A direct acting valve lifter reciprocable in a bore has a pivoting foot for following a three dimensional cam for use with a variable valve lift mechanism of the type having an axially movable camshaft with tapered lobes used to vary valve lift. A rotatable shim on the foot rides on a lubricant film to provide a low friction cam follower. The pivoting foot has a cylindrical convex bearing surface which rolls on a concave cylindrical bearing surface carried by a follower retainer. The bearing surfaces have relative radii of curvature of 2:1 to achieve cardanic rolling motion. A tooth on the foot cooperates with a recess in the retainer to prevent sliding between the cylindrical surfaces.

REFERENCES:
patent: 1802330 (1931-04-01), Boland
patent: 2935878 (1960-05-01), Wirsching
patent: 3139076 (1964-06-01), Flaherty
patent: 3180328 (1965-04-01), Engle
patent: 3303833 (1967-02-01), Melling
patent: 3915129 (1975-10-01), Rust et al.
patent: 4393820 (1983-07-01), Maki et al.
patent: 4517936 (1985-05-01), Aragona
patent: 4693214 (1987-09-01), Titolo
patent: 4773359 (1988-09-01), Titolo
"The Fiat Variable Valve Timing", A. Titolo, Fiat Auto S.p.A., Torino, published by TEIS Europe, Oct. 30, 1985.

Affiliated with

Also associated with

Rating

Three dimensional cam cardanic follower 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 Three dimensional cam cardanic follower valve lifter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three dimensional cam cardanic follower valve lifter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2350227