Controller assembly

Details Controller assembly Controller assembly

1974-11-06

1976-01-13

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60479, 180 792, 418 61B, F16H 3946

Patent

active

039317110

ABSTRACT:
An improved controller assembly is utilized in a hydrostatic steering system having an engine driven pump with a servomotor which is effective to vary the displacement of the pump upon operation of a pressure responsive valve assembly. The controller assembly includes a housing having a valve chamber with an inlet port which receives fluid from the pump. Upon rotation of a steering wheel, a controller valve member is moved to an actuated position and a metered flow of fluid is conducted from the valve chamber through a motor port to a steering motor. In addition, fluid is conducted from the steering motor through another motor port to the controller valve chamber. The fluid from the steering motor is then discharged from the valve chamber to reservoir or drain through an outlet port. The controller assembly also includes a control port connected in fluid communication with the pressure-responsive valve assembly. Surfaces on the controller valve member and housing cooperate to form an orifice which causes the fluid pressure conducted to the control port to vary as a function of variations in the rate at which the steering wheel is rotated, and in addition to the pressure required to overcome any variable steered load.

REFERENCES:
patent: 3180091 (1965-04-01), Bruno
patent: 3333416 (1967-08-01), Budzich
patent: 3452543 (1969-07-01), Goff et al.
patent: 3481147 (1969-12-01), Goff

Affiliated with

Also associated with

Rating

Controller assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-740812