| 摘要 |
<p>A pressure regulator of the liquefied-gas fuel system for internal combustion engines has two cooperative diaphragms which partition the space inside the regulator body into three separate chambers. The diaphragms are operatively connected by a spring disposed therebetween, the first one defining two of the three chambers, namely a pressure-regulating chamber and a back-pressure chamber, and the second one defining the back-pressure chamber and a suction-pressure chamber. In the pressure-regulating chamber is installed a valve whose opening is controlled by the first diaphragm to control the supply of the liquefied-gas fuel. The second diaphragm is moved according to the intake-manifold vacuum, and the first diaphragm is correspondingly moved to control the valve, thus regulating the pressure of the fuel in the pressure-regulating chamber.</p> |
