초록 ▼

A vapor recovery valve that includes two mechanisms for opening the valve is disclosed. The first mechanism opens the valve when fuel is being dispensed by a fuel delivery system. The second mechanism selectively opens the valve independent of whether the fuel delivery system is dispensing fuel. A m

A vapor recovery valve that includes two mechanisms for opening the valve is disclosed. The first mechanism opens the valve when fuel is being dispensed by a fuel delivery system. The second mechanism selectively opens the valve independent of whether the fuel delivery system is dispensing fuel. A method for dry testing a vapor recovery system is also disclosed. The method involves disabling the fuel dispensing capability of the fuel delivery system, and then operating the vapor recovery system at a rate that corresponds to a predetermined imaginary fuel dispensing rate. Next, the vapor recovery path is opened, and its operation is measured and determined if it is sufficient for the imaginary fuel delivery rate.

대표청구항 ▼

[ We claim:] [1.] An apparatus for controlling the flow of recovered fuel vapor in a fuel delivery system, comprising:a) a valve body, said valve body having an inlet, and outlet, and a fluid passage extending between the inlet and outlet, said fluid passage defining a portion of a vapor recovery pa

[ We claim:] [1.] An apparatus for controlling the flow of recovered fuel vapor in a fuel delivery system, comprising:a) a valve body, said valve body having an inlet, and outlet, and a fluid passage extending between the inlet and outlet, said fluid passage defining a portion of a vapor recovery path;b) a valve member movably disposed relative to the valve body for controlling the flow of fuel vapor through the vapor recovery path, said valve member having:an opened position whereby the inlet and outlet are in fluid communication, andii. a closed position whereby the inlet and outlet are substantially out of fluid communication;c) a biasing mechanism for biasing the valve member to its closed position;d) a first activation mechanism for moving the valve member to its opened position when fuel is being dispensed by the fuel delivery system; ande) a second activation mechanism for selectively moving the valve member to its opened position independent of whether fuel is being dispensed by the fuel delivery system.