| 摘要 |
PROBLEM TO BE SOLVED: To certainly hold a line contact between a pressure contact part and an end seal part even when dispersion of dimension occurs due to thermal deformation of a member and drawing tolerance, and to prevent leakage of high-temperature and high-pressure gas from the pressure contact part, while downsizing and lightening a valve body. SOLUTION: In a direction selector valve for high temperature gas, the end seal part disposed in a branch part 42 for making the high-temperature and high-pressure gas to flow to one of a plurality of outlets comprises a pan 143 sliding in a recessed part 142 or on the inner peripheral surface of a flow channel, a tapered part 145 disposed in a flow channel inlet in the branch part, and a bellows 130 of which one end is connected to the pan and the other end is connected to the inner surface of a case. The pressure contact part for blocking the flow channel inlet in the branch part comprises a poppet 24 for contacting the pan and the tapered part by pressure on the front end surface and the rear end surface, and a projection 124 for contacting the pan by pressure on the inner peripheral surface of the flow channel. COPYRIGHT: (C)2003,JPO
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