Control units for vehicle powersteering mechanisms

Power plants – Pressure fluid source and motor – Expansible chamber type volumetric responsive measuring...

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60386, 13762524, 180132, 418 61B, B62D 508, F15B 1304

Patent

active

RE0309923

ABSTRACT:
The present invention relates to a control unit for a vehicle powersteering mechanism comprising a housing having an inlet for connection to a source of fluid under pressure, an outlet for returning hydraulic fluid under pressure to said source, a pair of ports for connection to a hydraulic servomotor the movement of which controls the steering of the dirigible wheels of the vehicle, a hydraulic motor provided with a rotatable element and a follower element in operative combination with a distributor valve means provided with at least one displaceable body, said combination being operable on rotation of a control shaft connected thereto to divert hydraulic fluid flowing from said inlet through said housing to said outlet to one of said ports, and thus to its associated chamber of said servomotor, via said hydraulic motor, the hydraulic fluid being exhausted from the other chamber of the servomotor to said outlet, via said other port.

REFERENCES:
patent: 2917027 (1959-12-01), Hayse
patent: 3283723 (1966-11-01), Charlson
patent: 3348493 (1967-10-01), Easton
patent: 3352247 (1967-11-01), Easton
patent: 3385057 (1968-05-01), Pruvot et al.
patent: 3452543 (1969-07-01), Goff et al.
patent: 3895888 (1975-07-01), Roberts
patent: 4050474 (1977-09-01), Morgan

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