VALVE ASSEMBLY FOR A TIRE PRESSURE MANAGEMENT SYSTEM

摘要

A valve assembly for a tire pressure management system. The valve assembly includes a housing having an inner chamber (20). The inner chamber is in fluid communication with a first conduit (24) for communicating with a tire pressure management system. The inner chamber is selectively in fluid communication with a second conduit (30) for communicating with a tire. A piston is provided in the inner chamber. The piston has an inner wall portion (78) and an outer wall portion (76). The inner wall portion defines a cavity having a first opening. The first opening is selectively in fluid communication with the atmosphere. A major biasing member (108) is positioned between the inner wall portion and the outer wall portion. The major biasing member contacts the piston to provide a force which biases the piston to place the piston in a closed position. A seal member (110) is disposed around the outer wall portion to provide a seal between the piston and the housing.