Remotely controlled inflation/deflation valve system for a vehic

Details Remotely controlled inflation/deflation valve system for a vehic Remotely controlled inflation/deflation valve system for a vehic

1986-03-06

1987-08-11

Czaja, Donald E.

Resilient tires and wheels

Tires, resilient

Inflating devices

1374875, 152415, B60C 2300, B60C 2900

Patent

active

046855017

ABSTRACT:
A valve system for remotely controlling the inflation pressure within a pneumatic tire of a wheel mounted for rotation on an axle of a vehicle includes several improvements. One improvement is a spool valve assembly disposed in a housing mounted within the axle. The spool valve assembly is carried by and rotates with an air manifold formed on the interior of the wheel hub cap. Another improvement is an electrical pressure transducer for monitoring the pressure in the air manifold which is mounted to the manifold and rotates therewith. A pair of electrical inductive coupling rings attached respectively to the housing and spool valve body electrically couple a stationary leading portion of an electrical signal transmitting cable to a trailing portion thereof which is attached to the transducer and moves therewith. A further improvement is a sealing assembly disposed between the housing and spool valve body adjacent the inductive coupling rings. The sealing assembly includes a flexible ring and an expanded flexible band which seats in a curled inner edge of the ring for establishing an air-tight seal between the curled edge of the ring and the valve body when the inflation/deflation function is in operation.

REFERENCES:
patent: 2685906 (1954-08-01), Williams
patent: 2693841 (1954-11-01), Webster, Jr.
patent: 2747640 (1956-05-01), Kress
patent: 2989999 (1961-06-01), Holbrook et al.
patent: 3361180 (1968-01-01), Neilson et al.
patent: 4330774 (1982-05-01), Doty

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