Mechanism for controlling valve timing

Details Mechanism for controlling valve timing Mechanism for controlling valve timing

1991-04-25

1992-11-24

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

F01L 134

Patent

active

051653702

ABSTRACT:
The invention is an improvement upon an engine valve operating mechanism having a cam with a rotational axis and a lobe high point, a movable control surface and a cam follower. In the improvement, the follower has a cam-contacting face and the movable control surface is defined by boundaries maintained to one side of a plane. The plane is generally normal to the cam-contacting face and includes the cam rotational axis. Movement of the control surface varies the time of valve opening and/or closing without increasing the dimension to which such valve is opened. The control surface may be formed on an "insert" (a separate control member which is an adjunct to the conventional valve train components) or as an integral part of the cam follower. In event of a failure involving the insert or follower, the mechanism is fail-safe. The insert or follower may be made of a metal composite material for low inertia and good wear and strength characteristics.

REFERENCES:
patent: 621525 (1899-03-01), Hamilton
patent: 3911879 (1975-10-01), Altmann
patent: 4138973 (1979-02-01), Luria
patent: 4205634 (1980-06-01), Tourtelot, Jr.
patent: 4382428 (1983-05-01), Tourtelot, Jr.
patent: 4414931 (1983-11-01), Burandt
patent: 4438735 (1984-03-01), Burandt
patent: 4459946 (1984-07-01), Burandt
patent: 4572118 (1986-02-01), Baguena
patent: 4583501 (1986-04-01), Williams
patent: 4911124 (1990-03-01), Bennett

Affiliated with

Also associated with

Rating

Mechanism for controlling valve timing does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-916208