Tire having a pump and valve assembly

A tire having a pump and valve assembly is disclosed. The tire comprises a tire cavity and a first and second sidewall extending respectively from first and second tire bead regions to a tire tread region, and a pump passageway having an inlet end and an outlet end and being operative to allow a portion of the pump passageway near a tire footprint to close and open the pump passageway. The valve assembly has a valve housing, wherein a diaphragm is mounted in the valve housing forming an interior chamber, and wherein the diaphragm is responsive to a pressure in the tire cavity. The interior chamber has a first hole in fluid communication with the inlet end of the pump passageway, a second hole in fluid communication with the outlet end of the pump passageway, and a third hole in fluid communication with the outside air. The valve housing has a passageway in fluid communication with the tire cavity and the outlet end of the pump passageway. The valve assembly further includes an inlet control valve having a valve bottom positioned over the third hole and operative to open and close the third hole. The inlet control valve has a first end connected to the diaphragm and a resilient member is positioned in the interior chamber of the valve housing, the resilient member biasing the valve bottom into the open position.