| 摘要 |
A multi-outlet, variable flow, gas valve connects a blower to the pipes and comprises a housing defining an inlet and a passageway. The valve housing further defines at least two cylinder chambers communicating with the passageway and a discrete outlet for each cylinder chamber communicating therewith. A piston is substantially non-rotatably disposed inside each cylinder chamber and has a threaded opening through the center thereof which receives a threaded portion of a rotatable shaft therethrough. One end of the shaft is rotated by a motor, and the other end of the shaft is connected to an axle of a potentiometer.
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