Fueling nozzle with integral hydrogen leak sensor

摘要

A hydrogen fueling nozzle (20) comprises housing having a portion that is adapted for coupling to an opening of the container, and sensor(s) (100) that is positioned inside the nozzle. The sensor is for detecting the concentration of hydrogen and emitting a signal indicative of the concentration of hydrogen. Independent claims are also included for: (a) a method for detecting hydrogen gas leaks during the transfer of hydrogen gas from a hydrogen gas source into a container comprising providing a nozzle coupled at one end to a transfer line (3) from the hydrogen gas source and having an output at its other end, positioning sensor(s) inside the nozzle, coupling the sensor(s) to a controller receiving the signal indicative of the concentration of hydrogen, coupling the output end of the nozzle to an opening of the container, initiating transfer of hydrogen gas from the hydrogen gas source to the container, and alerting an operator or shutting off the transfer of hydrogen gas through the controller when the controller determines that the received signal has reached or exceeds a predetermined hydrogen concentration; and (b) a hydrogen gas transfer monitoring and control system (22) for dispensing hydrogen gas from a hydrogen gas source into a container and for responding to hydrogen gas leaks comprising nozzle(s) coupled to a hydrogen gas source via a transfer line and control valve (4).