Fluid-power converter with paired rotators providing seals and d

Details Fluid-power converter with paired rotators providing seals and d Fluid-power converter with paired rotators providing seals and d

1979-02-22

1981-02-10

Love, John J.

Land vehicles

Wheeled

Occupant propelled type

418 61R, 418165, B62M 106, F01C 108, F01C 110

Patent

active

042497507

ABSTRACT:
The fluid-power converter of the present invention is a pump-motor having matched rollers and matched gears arranged to provide seals and displacement paths. The pump-motor includes a plurality of rotators in series-contact to define a plurality of fluid-pressure zones. At least one of the rotators has a smooth surface and at least another of the rotators has a gear-like surface. A smooth rotator and a gear-like rotator are in contact with each other to define therebetween a displacement path whereby fluid is transferred from one zone to another zone, and at least one pair of similar rotators are in contact with each other to provide therebetween (and between the pressure zones) a seal to insure fluid-flow in only one direction between the zones at a given moment. A pair of the converters, one operating as a pump and the other as a motor, provide the motive power with free-wheeling and coaster-brake features for small vehicles such as bicycles, wheelchairs, and golf carts.

REFERENCES:
patent: 485094 (1892-10-01), Dey et al.
patent: 614992 (1898-11-01), Schmidt
patent: 2311237 (1943-02-01), Loveday
patent: 2745355 (1956-05-01), Mosbacher
patent: 3151526 (1964-10-01), Van Hoene
patent: 3606600 (1971-09-01), Pollman
patent: 3653791 (1972-04-01), McCoy

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