Resilient tires and wheels – Tires – resilient – Inflating devices
Patent
1991-05-13
1993-01-26
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Inflating devices
152427, 137224, 137226, B60C 2300
Patent
active
051819775
ABSTRACT:
A tire fill valve having pressure relief and tire fill fluid gas flow limiting characteristics for use in filling tires to a predetermined pressure form a large flow capacity gas source delivering fill gas at a substantially greater pressure. Gases utilized typically are air or nitrogen. The valve of the invention is wheel mounted intermediate the gas pressurizing source and the tire gas valve inlet. Tire fill gas from a high pressure high capacity source passes through a flow limiting orifice having a positive closure or shutoff member and passes through a pressure sensitive chamber as it enters the tire. Chamber pressure is sensed by a spring loaded valve disk controlling relief or venting orifices. When fill pressure in the pressure sensing chamber exceeds a pre-determined value established by the valve disk area and valve disk springs, the disk lifts allowing the venting of the fill gas. Overpressurization of the pressure sensitive chamber and tire with the disk in its relief position is prevented by limited flow and/or positive shutoff through the chamber entrance or flow limiting orifice.
REFERENCES:
patent: 4678017 (1987-07-01), Schultz
patent: 4744399 (1988-05-01), Magnuson et al.
Gneiding Donald R.
Peterson Oscar J.
Ball Michael W.
Circle Seal Controls, Inc.
Lorin Francis J.
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