Patent ID: 9694802
Date: 2017-07-04
CPC Classifications: B60T,F16K,Y10T

Claim:
1. A valve assembly including a housing and a first movable member which divides the housing into a control chamber and a main chamber, the housing being provided with an inlet port, a delivery port and an exhaust port which connect the main chamber with the exterior of the housing, the valve assembly further including a second movable member which has a first valve part and a second valve part and which is movable parallel to an axis of the valve assembly to engage the first valve part with a corresponding inlet valve part secured relative to the housing, engagement of the first valve part with the inlet valve part substantially preventing flow of fluid into the main chamber via the inlet port, the first movable member being provided with an exhaust valve part and movable so that the exhaust valve part engages with the second valve part of the second movable member, engagement of the exhaust valve part with the second valve part initiating closing of the exhaust port, closing of the exhaust port substantially preventing flow of pressurized fluid out of the main chamber via the exhaust port, characterized in that the valve assembly is further provided with a support part, there being a first seal between the second movable member and the support part and a second seal between the support part and the first movable member.