Patent ID: 9249935
Filing Date: 2016-02-02
CPC Classification: F16K,F17C,F17D,H01M,Y02E,Y10T

Claim Text:
1. A fuel supply system that supplies fuel gas, comprising: a fuel gas tank in which the fuel gas is stored at high pressure; a temperature detecting portion that detects a temperature inside the fuel gas tank; a fuel gas discharge flow path that is connected to the fuel gas tank; a main stop valve that is provided in the fuel gas discharge flow path; and a control portion that controls opening and closing of the main stop valve, wherein the main stop valve includes an inlet portion through which the fuel gas flows in and an outlet portion through which the fuel gas flows out, a main valve that is arranged between the inlet portion and the outlet portion and that opens and closes the fuel gas discharge flow path, a pilot flow path that is provided so as to communicate the inlet portion with the outlet portion, a pilot valve that opens and closes the pilot flow path, and an actuator capable of opening and closing the main valve and the pilot valve at different timings, and wherein the pilot flow path and the pilot valve are formed inside the main valve, and wherein the control portion is programmed to open the pilot valve and close the main valve when a detected temperature detected by the temperature detecting portion is equal to or lower than a first reference temperature.