Displacement control for a variable displacement axial piston pu

Details Displacement control for a variable displacement axial piston pu Displacement control for a variable displacement axial piston pu

1994-10-18

1996-10-15

Thorpe, Timothy S.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417506, 91482, 91505, F04B 132

Patent

active

055649050

ABSTRACT:
A variable displacement axial piston hydraulic unit includes a flat port plate disposed between a stationery head and a rotatable cylinder barrel. An arcuate actuator piston extends from the port plate and is slidably disposed within an arcuate pocket in the head to define an actuator chamber. Similarly, an arcuate biasing piston extends from the port plate and is slidably disposed within an arcuate pocket defining a biasing chamber which continuously communicates with a discharge passage in the head. By selectably rotating the port plate relative to the head, the amount of fluid pressure carryover through TDC and BDC can be varied, thereby changing the swivel torque acting on the swashplate so that the swivel torque can be utilized to actually control the position of the swashplate. The rotational position of the port plate is controlled by controllably introducing pressurized fluid into the actuating chamber.

REFERENCES:
patent: 3117529 (1964-01-01), Firth et al.
patent: 3185104 (1965-05-01), Liles
patent: 3190232 (1965-06-01), Budzich
patent: 3327642 (1967-06-01), Budzich
patent: 3362342 (1968-01-01), Flint et al.
patent: 4617853 (1986-10-01), Wagenseil et al.
patent: 4800800 (1989-01-01), Schweitzer
patent: 4918918 (1990-04-01), Miki et al.
patent: 5135362 (1992-08-01), Martin

Affiliated with

Also associated with

Rating

Displacement control for a variable displacement axial piston pu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Displacement control for a variable displacement axial piston pu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Displacement control for a variable displacement axial piston pu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1241918