Valve i.e. freewheel valve, for vehicle tire, has pressure chamber with piston that does not create friction between cover and body and seals cover and body such that piston surrounds control and pressure chambers with body

摘要

The valve i.e. freewheel valve (5) has a control chamber (23), and a body (20) closed by a cover (21). A leakage chamber (24) is connected outwards by an air exhaust hole (25). A pressure chamber (26) is connected with a content by a borehole (27) and comprises a piston (22), which does not create a friction between the cover and the body and seals the cover and the body such that the piston is hermetically connected with the cover, and surrounds the control and pressure chambers with the body, and the leakage chamber with the cover. The piston allows flow connection between the chambers.