Patent ID: 7296600
Filing Date: 2007-11-20
Classification: B60K,F02M

Abstract:
1. A vent valve for a fuel tank of a vehicle, comprising: a housing having a valve seat defining at least part of a vent passage; a pressure responsive member carried by the housing and defining at least part of a pressure chamber; a valve carried by the housing and having a closure movable relative to the valve seat between an open position permitting fluid flow through the vent passage and a closed position at least substantially restricting fluid flow through the vent passage, the closure being moved by the pressure responsive member in response to changes in pressure in the pressure chamber; a control passage communicating the pressure chamber with the interior of the fuel tank; and a sensor associated with at least one of the pressure responsive member and the valve, the sensor being responsive to a change in position of at least one of the pressure responsive member and the valve and operable to send an electric signal in response to said change in position.