Electromagnetic actuator for a cylinder valve including an integ

Details Electromagnetic actuator for a cylinder valve including an integ Electromagnetic actuator for a cylinder valve including an integ

1999-04-07

2000-04-11

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

123 9012, 123 9019, 25112916, 25112918, F01L 904

Patent

active

060476737

ABSTRACT:
An electromagnetic actuator for operating an engine valve of an internal-combustion engine includes two electromagnets; an armature movably disposed in the space between the electromagnets for reciprocation in response to electromagnetic forces generated by the electromagnets; resetting springs operatively coupled to the armature for opposing armature motions effected by the electromagnetic forces; a push rod affixed to the armature for moving therewith as a unit; and a guide for guiding the push rod. The guide includes a guide cylinder and a push-rod piston carried by an end of the push rod. The push-rod piston is slidably received in the guide cylinder. A setting piston is slidably received in the guide cylinder and defines, with the push-rod piston, an intermediate chamber forming part of the cylinder. The setting piston has an end adapted to be operatively coupled to the engine valve. A fluid supply introduces hydraulic fluid into the intermediate chamber. Further, a fluid-control valve is provided which has an open state in which the intermediate chamber communicates with the fluid supply and a closed state in which hydraulic fluid is locked in the intermediate chamber for rigidly transmitting motions of the push-rod piston to the setting piston.

REFERENCES:
patent: 4777915 (1988-10-01), Bonvallet
patent: 4878464 (1989-11-01), Richeson, Jr. et al.
patent: 5647311 (1997-07-01), Liang et al.
patent: 5762035 (1998-06-01), Schebitz

Affiliated with

Also associated with

Rating

Electromagnetic actuator for a cylinder valve including an integ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic actuator for a cylinder valve including an integ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic actuator for a cylinder valve including an integ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1169374