Torque controlled variable displacement hydraulic motor

Details Torque controlled variable displacement hydraulic motor Torque controlled variable displacement hydraulic motor

1989-08-16

1992-01-28

Look, Edward K.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

91504, 91505, 91475, 92 122, F16D 3102

Patent

active

050834312

ABSTRACT:
In order to entirely eliminate pressure drop sensors in a variable displacement hydraulic motor (10), and to change the wobbler angle mechanically rather than hydraulically, the hydraulic motor (10) includes a motor housing (26) having a plurality of hydraulic cylinders (32) and a plurality of hydraulic pistons (34) radially disposed about an axis (36) thereof. A servovalve (40) is provided for controlling the rate and direction of flow of hydraulic fluid to and from the hydraulic cylinders (32), and the wobbler (22) is operatively associated with the hydraulic pistons (34) in a variably angularly positionable manner for varying displacement of the hydraulic motor (10). With this arrangement, the hydraulic motor (10) includes a cam system (22a, 30) for automatically varying the angular positioning of the wobbler (22) relative to the axis (36) of the hydraulic motor (10) responsive to a load-related torque at an output shaft (12) thereof.

REFERENCES:
patent: 3139037 (1964-06-01), Budzich
patent: 3208395 (1965-09-01), Budzich
patent: 3339660 (1967-09-01), Budzich
patent: 4191094 (1980-03-01), Flippo
patent: 4579039 (1986-04-01), Ebbing
patent: 4768340 (1988-09-01), Hamilton
patent: 4845950 (1989-07-01), Metzner
patent: 4858480 (1989-08-01), Rohde et al.
patent: 4907408 (1990-03-01), Barker

Affiliated with

Also associated with

Rating

Torque controlled variable displacement hydraulic motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque controlled variable displacement hydraulic motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque controlled variable displacement hydraulic motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1853410