Valve timing control device for gas exchange valves on an intern

Details Valve timing control device for gas exchange valves on an intern Valve timing control device for gas exchange valves on an intern

1996-10-23

1998-11-03

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 74568R, 464 2, F01L 1344

Patent

active

058293981

ABSTRACT:
A valve timing control device (1) for varying opening and closing times of gas exchange valves of an internal combustion engine, characterized in that, in at least one of the pressure chambers (5, 6), there is arranged at least one spring means (13) whose spring force acts on the adjusting piston (4) to counteract an undesired adjusting direction (delayed opening and closing times t.sub.N+) of the adjusting piston (4) caused by a drag and frictional torque M.sub.S of the camshaft (2) during operation of the internal combustion engine, whereby the drag and frictional torque M.sub.S in a low-speed, low-load range of the internal combustion engine is substantially counteracted by an oppositely directed torque M.sub.F obtained from the spring force of the spring means (13).

REFERENCES:
patent: 5012774 (1991-05-01), Strauber et al.
patent: 5435782 (1995-07-01), Tortul
patent: 5588404 (1996-12-01), Lichti et al.

Affiliated with

Also associated with

Rating

Valve timing control device for gas exchange valves on an intern does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve timing control device for gas exchange valves on an intern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve timing control device for gas exchange valves on an intern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-679989