Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1985-03-21
1986-10-21
Love, John J.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
417282, 417283, 418134, B62D 506
Patent
active
046180184
ABSTRACT:
A power steering device for vehicles having a simple construction, which is capable of minimizing the frictional loss of a hydraulic pump as well as the power consumption of the hydraulic pump and engine. This power steering device comprises a hydraulic pump constructed such that a pressure member is provided in a pump casing and defines an inner side wall of a pump chamber on at least one axial side of a rotary shaft of the pump, the pressure members being movable in the axial direction of the shaft; that a hydraulic chamber, which is provided on a side of the pressure member opposite the pump chamber and which faces an end portion of the pressure member, communicates with a discharge port of the hydraulic pump; and that an electromagnetic change-over valve is interposed in an oil passage connecting between the hydraulic chamber and a suction port of the hydraulic pump and is adapted to place the latters in mutual communication through opening operation thereof upon receipt of a signal from a detector which detects the moment when supplementary should be reduced.
REFERENCES:
patent: 3822965 (1974-07-01), Drutchas et al.
patent: 3844685 (1974-10-01), Eickmann
patent: 3904333 (1975-09-01), Stoeckelmann
patent: 3951575 (1976-04-01), Motomura et al.
patent: 4014630 (1977-03-01), Drutchas
patent: 4408963 (1983-10-01), Drutchas
patent: 4437532 (1984-03-01), Nakamura et al.
Ishida Takashi
Kawai Toshitake
Takaoka Tokuro
Toshimitsu Yoshihiko
Honda Giken Kogyo Kabushiki Kaisha
Love John J.
Watts Charles R.
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