Pressure modulating and reducing valve

Details Pressure modulating and reducing valve Pressure modulating and reducing valve

1983-07-11

1984-10-23

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

192 85R, G05D 1610

Patent

active

044782373

ABSTRACT:
A pressure modulating and reducing valve (10) communicates pressurized hydraulic fluid from a pump (11) to a hydraulically actuated clutch of a transmission at a modulated rate of pressure rise and at a reduced pressure. In order to provide a compact valve, the valve (10) has a pressure reducing valve spool (61) slidably nested within a sleeve member (46) of a load piston to provide a valving action therebetween for controlling fluid flow between an inlet port (24), a load port (26) and a drain port (27) in a body (19). Movement of the sleeve member (46) causes an increase in the pressure at the load port (26) which causes the pressure reducing valve spool (61) to move against a spring (77,78) to establish a pressure in the load port (26) proportional to the travel distance of the sleeve member (46). Movement of the sleeve member (46) is controlled by a solenoid control valve (85) having a spool (86) slidably nested within a projection (54) of an end wall (51) extending into a bore (62) of the pressure reducing valve spool (61).

REFERENCES:
patent: 3583422 (1971-06-01), Dach
patent: 3918488 (1975-11-01), Minami
patent: 3949847 (1976-04-01), Hoehn
patent: 3960172 (1976-06-01), Blake
patent: 4281676 (1981-08-01), Morris

Affiliated with

Also associated with

Rating

Pressure modulating and reducing valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1594230