Engine valve actuator with differential area pistons

Details Engine valve actuator with differential area pistons Engine valve actuator with differential area pistons

1996-12-19

1997-11-04

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

F01L 902

Patent

active

056828462

ABSTRACT:
A high pressure fluid is used to power an actuator for opening and closing an engine poppet valve when the actuator has a valve stem supporting an upper piston and an adjacent lower piston which axially transverse an actuator housing in response to the flow of high pressure fluid as determined by the position of a control valve. The upper piston has a larger diameter than the lower piston which has a larger diameter than the valve stem. An upper chamber is defined by the upper piston and the actuator housing while a lower chamber is defined by an outside peripheral surface of the lower piston and the actuator housing.

REFERENCES:
patent: 3209737 (1965-10-01), Omotehara et al.
patent: 5193495 (1993-03-01), Wood, III
patent: 5529030 (1996-06-01), Rose
patent: 5582141 (1996-12-01), Meyer
patent: 5595148 (1997-01-01), Letsche et al.

Affiliated with

Also associated with

Rating

Engine valve actuator with differential area pistons does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Engine valve actuator with differential area pistons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine valve actuator with differential area pistons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1825078