Steering control valve for power booster steering mechanisms

Details Steering control valve for power booster steering mechanisms Steering control valve for power booster steering mechanisms

1979-05-08

1980-11-11

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

For double-acting motor

91470, 13762523, 13762524, 13762532, F15B 1304, F16K 1100

Patent

active

042325862

ABSTRACT:
An otherwise conventional multi-way booster steering control rotary valve plug is provided with needle bearings at both ends of the grooved valve core, i.e., the rotary valve plug, in order to maintain it exactly centered radially within the coacting grooved valve sleeve i.e., a worm shaft in the present instant. This has been found to obviate heavy friction due to buildup of pressure on one side of the valve plug causing eccentricity within the valve worm shaft, such eccentricity causing these components to contact at the opposite side. The arrangement maintains radial clearance within very small limits to preclude significant oil leakage between the components and permits smooth rotary operation.

REFERENCES:
patent: 2395979 (1946-03-01), Tucker et al.
patent: 2946348 (1960-07-01), North
patent: 2988059 (1961-06-01), Wysong, Jr.
patent: 3110322 (1963-11-01), Bozoyan
patent: 3296940 (1967-01-01), Eddy et al.
patent: 3591139 (1971-07-01), Bishop
patent: 3772962 (1973-11-01), Suzuki

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