Patent ID: 6357469
Filing Date: 2002-03-19
Classification: B60C,Y10T

Abstract:
A valve stem for a vehicle tire comprising:an elongated body having a central bore extending therethrough to define a first opening at one end of said body and a second opening at an opposite end of said body; a valve seat formed within said bore; a valve member movably supported within said bore and engagable with said valve seat to prevent fluid from flowing from said first opening to said second opening; and a pressure sensor partially received in said bore for measuring fluid pressure at said first opening wherein said pressure sensor generates a pressure signal representing the fluid pressure, said signal being communicated to a central tire inflation system controller, and wherein said controller causes a central tire inflation system to supply air and cause said valve member to disengage from said valve seat when the fluid pressure falls below a desired level to allow fluid flow through said bore from said second opening to said first opening.