| 摘要 |
PURPOSE: An LPG car having a pressure maintaining fuel tank is provided to always maintain the optimum fuel discharge pressure by pressurizing LPG inside the fuel tank through an air valve when temperature around the fuel tank is lowered less than a predetermined temperature. CONSTITUTION: An LPG car having a pressure maintaining fuel tank includes an air chamber and a pressurizing part for pressurizing fuel when fuel pressure of a fuel tank is lowered. The pressurizing part has a diaphragm(11) moving laterally according to air pressure inside the tank, a support plate(12), and an air valve(13). The support plate is located at an interval from the diaphragm, supports the diaphragm, and has a number of holes(12-1). The air valve restricts introduction of the air and discharges moisture generated inside the tank.
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