Wheel end valve for central tire inflation system

Details Wheel end valve for central tire inflation system Wheel end valve for central tire inflation system

1988-10-14

1989-10-31

Michalsky, Gerald A.

Fluid handling

Inflatable article

With pressure-responsive pressure-control means

137493, 137494, 137510, 152416, B60C 2900

Patent

active

048770485

ABSTRACT:
An improved wheel end valve assembly (11A) for a central tire inflation system (10) having a single connection (68) to a tire chamber (74) and a single supply connection (62) to a source ( 142) of pressurized fluid, which requires no venting other than through the single supply connection (62), is effective in response to pressurization and venting of the single supply connection (62) to open and close communication to the tire chamber (74), and which is not affected by ambient temperature changes nor susceptible to leakage into and out of a trapped air volume employed by prior art valve (11) disclosed herein. The valve (11A) is actuated by air pressure and is resiliently biased into closed position by a spring (342) positioned within an evacuated bellows (334).

REFERENCES:
patent: 1916635 (1933-07-01), Pepper
patent: 2070411 (1937-02-01), Powers
patent: 2391808 (1945-12-01), Vincent
patent: 4598750 (1986-07-01), Gant
patent: 4678017 (1987-07-01), Schultz
patent: 4735232 (1988-04-01), Apostoly et al.

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