| 摘要 |
A gas control system having: a valve body having a preliminary chamber, an inlet orifice in communication with said preliminary chamber, an outlet orifice on said valve body in communication with a gas burning device, a main chamber within said valve body, said main chamber and said preliminary chamber communicating through a valve opening, a stopper in said preliminary chamber and normally urged by a compression spring located in said preliminary chamber to engage with said valve opening to close communication between said preliminary chamber and said main chamber, an elongated slidable rod slidably mounted in said valve body and having an inner end portion juxtaposed with said stopper washer, and a pressing arm juxtaposed with another end of said slidable rod and operative for pressing said slidable arm inwards to disengage said stopper washer from said valve opening for releasing the gas in said preliminary chamber into said outlet orifice.
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