Patent ID: 7458390

Claim:
A valve for a power air supply system comprising: a valve body having an inlet and an outlet and a diaphragm housing partitioned into a first interior portion and a second interior portion by a diaphragm deflectable between a first position and a second position, wherein the first interior portion communicates with the outlet of the valve body, and wherein the second interior portion communicates with the exterior of the valve body; a spring disposed within the diaphragm housing between a surface of the diaphragm and an interior wall of the diaphragm housing for biasing the diaphragm toward the first position when the pressure inside the outlet is above a predetermined pressure; and a diaphragm ring secured to the diaphragm, the diaphragm ring including a groove and at least one connecting rod, wherein a first end of the spring engages the groove of the diaphragm ring and a second end of the spring abuts an interior wall of the diaphragm housing, and wherein the deflection of the diaphragm promotes the at least one connecting rod, that extends between the diaphragm and at least one shutter disposed in the valve body between the inlet and the outlet, to articulate the at least one shutter between a closed state and an open state in response to a change in pressure within the outlet.