Hydrostatic transmission control system

Details Hydrostatic transmission control system Hydrostatic transmission control system

1978-08-24

1980-08-05

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Having distinct cooling or lubricating structure

60468, 60470, 60487, 417440, 60454, F15B 2104

Patent

active

042155460

ABSTRACT:
A hydrostatic transmission control system including a variable displacement pump driving a constant displacement motor arranged in a hydraulic circuit having a controlled by-pass valve interconnected for positioning the pump swash plate in two established positions corresponding respectively to a stand still position or a full speed position of the motor. A thermosensitive element is coupled to the valve control spool for bypassing the flow of the pump in the event of motor jamming.

REFERENCES:
patent: 2242807 (1941-05-01), Austin
patent: 2961829 (1960-11-01), Weisenbach
patent: 3174410 (1965-03-01), Booth et al.
patent: 3303647 (1967-02-01), Futamata
patent: 3391537 (1968-07-01), Smith
patent: 3393509 (1968-07-01), Kempson
patent: 3399531 (1968-09-01), Wright
patent: 3451218 (1969-06-01), Grant
patent: 3905194 (1975-09-01), Reimer

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