Hydrostatic control - pivot steering

Details Hydrostatic control - pivot steering Hydrostatic control - pivot steering

1974-10-29

1976-10-05

Nilson, Robert G.

Fluid handling

Systems

Sequentially progressive opening or closing of plural valves

1376361, F16K 1116

Patent

active

039839010

ABSTRACT:
A pivot steering vehicle having a pair of hydrostatically operated driving wheels; and motors for driving those wheels which are driven by variable speed, reversible pumps; a control system is provided, having valve means for controlling the pressure applied to the pumps for controlling the speed and direction of the pumps; and cam means is provided which, in response to turning movements of the steering wheel, reduces the speed of the inside driving wheel, and after a predetermined point in the turning movements of the steering wheel, reverses the direction of that wheel.

REFERENCES:
patent: 203494 (1878-01-01), Perkins
patent: 2986168 (1961-05-01), Sikula
patent: 3128635 (1964-04-01), Doolittle
patent: 3234856 (1966-02-01), Martin
patent: 3599675 (1971-08-01), Slevenpiper
patent: 3805674 (1974-04-01), Sebesta

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