Rotary switch valve

Details Rotary switch valve Rotary switch valve

1980-05-28

1983-02-08

Michalsky, Gerald A.

Fluid handling

Systems

With running joint between movable parts of system

91448, 137554, 13762543, 13762546, 180329, F16K 1100

Patent

active

043723411

ABSTRACT:
A rotary switch valve, particularly for use in a vehicle where the operator may wish to face in either direction such as on a tractor where implements or attachments may be mounted on either the front or rear ends. The valve consists of at least two passageways for allowing passage of hydraulic fluid, which passageways pass through both a casing and a spool, relative rotational movement being allowed between them. Upon 180.degree. relative rotational movement, the passageways feed fluid from the outlet ports in a sense opposite to that when the spool and casing were in their original positions. The steering system of the vehicle, therefore, will continue to direct the vehicle in its normal sense.

REFERENCES:
patent: 2344913 (1944-03-01), Ager
patent: 3132486 (1964-05-01), Jonkers et al.
patent: 3705707 (1972-12-01), Scaramucci
patent: 3891003 (1975-06-01), Duttarer et al.
patent: 4059171 (1971-11-01), Pakosh

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