| 摘要 |
A magnetic piston 18 seated by fuel pressure is moved to permit fuel flow to an outlet pipe 12 in response current flow through the coil 20. Fuel flows through a circular array of passages 32 between inlet and outlet grooves 30, 28. The coil 20 is energised by a hidden switch, input to a keyboard, insertion of a card into a reader or in response to a radio, infra-red or audio transmitter/receiver arrangement. <IMAGE> |
