Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1983-07-22
1985-04-30
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
13762524, B62D 508, F15B 1304
Patent
active
045141525
ABSTRACT:
A power steering apparatus comprises a housing, a gerotor mechanism having a rotor and a stator, and a rotary valve mechanism constituted by a rotary spool disposed within the central interior of the housing and connected to the rotor of the gerotor mechanism and a rotary sleeve freely rotatably attached to the outside of the rotary spool so as to allow insertion of the rotary spool thereinto. Rotation of the sleeve relative to the spool due to a steering operation switches over the flow paths for pressurized liquid to the gerotor mechanism to thereby rotate the rotor of the gerotor mechanism in the direction corresponding to the steering operation. The pressurized liquid in an amount proportional to the degree of the steering operation is supplied from the liquid chambers of the gerotor mechanism contracted by the rotation of the rotor to actuators of a steering mechanism.
REFERENCES:
patent: Re30992 (1982-07-01), Bertanza
patent: 4016949 (1977-04-01), Plate et al.
patent: 4159723 (1979-07-01), Baatrup et al.
patent: 4300594 (1981-11-01), Bacardit
Ohnuki Tetsuo
Takamatsu Takashi
Tokyo Keiki Company Ltd.
Vrablik John J.
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