Power steering system

Details Power steering system Power steering system

1980-11-03

1983-10-18

Gluck, Richard E.

Power plants

Pressure fluid source and motor

Expansible chamber type volumetric responsive measuring...

60473, 60476, 180142, F16D 3102, B62D 504, B62D 506

Patent

active

044097891

ABSTRACT:
A power steering system, particularly advantageous for use on electric powered vehicles, in which the hydraulic pump operates only when steering commands are given. Torque applied to the steering shaft by rotation of the steering wheel is translated to axial stress on a thin walled tube, the direction and intensity of which depend on the direction and amount of steer angle change commanded. The axial stresses are detected by strain gages, and the motor which powers the hydraulic pump is activated only when stress is detected. Manual steering inputs enter the pump on one side, and the powered servo motor inputs enter on the opposite side, thus permitting the vehicle to be steered by manual input alone if the powered input fails. The components of the system are arranged in coaxial alignment, providing a compact system with improved heat dissipation qualities.

REFERENCES:
patent: Re25291 (1962-12-01), Charlson
patent: 2962108 (1960-11-01), Bidwell
patent: 2979148 (1961-04-01), Bidwell
patent: 3011579 (1961-12-01), Milliken et al.
patent: 3173253 (1964-12-01), Gibson et al.
patent: 3651885 (1972-03-01), Lang
patent: 4109679 (1978-08-01), Johnson
patent: 4355505 (1982-10-01), Liebent

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