| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve the miniaturization and weight reduction of a tank valve mounted directly on a tank. <P>SOLUTION: A main stop valve 10 includes a body 11 which is inserted partially and fixed inside a hydrogen tank 2, a first passage 15 so formed inside the body 11 as to communicate with the inside of the hydrogen tank 2, a second passage 17 so formed inside the body 11 as to communicate with the outside of the hydrogen tank 2, a main valve 18 which communicates or shuts off the first passage 15 and the second passage 17, a spring 27 which urges the main valve 18 in the valve-closing direction, a back pressure chamber 25 which communicates with the inside of the hydrogen tank 2 to give a fluid pressure in the valve-closing direction to the main valve 18, a third passage 29 which communicates the second passage 17 with the back pressure chamber 25, and an injector 30 so arranged on the third passage 29 as to regulate the pressure of the back pressure chamber 25. The main valve 18 is opened and closed using a pressure in the first passage 15, an elastic force of the spring 27, a pressure of the back pressure chamber 25 regulated by the injector 30, and a pressure in the second passage 17. <P>COPYRIGHT: (C)2013,JPO&INPIT |
