Hydraulic tappets

Details Hydraulic tappets Hydraulic tappets

1990-04-25

1991-05-28

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9057, F01L 124

Patent

active

050184881

ABSTRACT:
A hydraulic tappet for an internal combustion engine has a collar located axially on a valve stem, the outer periphery of the collar slidably engaging a cylindrical bore which is coaxial with the valve stem. A cap having a central tubular formation which slidingly engages over the end of the valve stem and an outer periphery which engages the cylindrical bore, is separated axially of the collar, to define a first chamber between the cap and collar and a second chamber between the cap and the end of valve stem. An inlet for hydraulic fluid is provided to the first chamber and the first and second chambers one interconnected by a non-return valve which prevents flow from the second chamber. A controlled leakage path is provided from the second chamber and a spring biases the cap into engagement with a cam formation.

REFERENCES:
patent: 3704696 (1972-12-01), Abell, Jr.
patent: 3941102 (1976-03-01), Bareham
patent: 4321894 (1982-03-01), Black
patent: 4365595 (1982-12-01), Piatti

Affiliated with

Also associated with

Rating

Hydraulic tappets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic tappets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic tappets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-27982