发明名称 |
Pipe coupling member for high-pressure fluid |
摘要 |
A pipe coupling member for high-pressure fluid such as liquefied hydrogen includes a seal ring having a highly effective sealing function to prevent leakage of the fluid. The seal ring (72) is set in a seal ring setting space (39) defined by a second radial surface (36) and a seal ring setting surface (38) of a first tubular member (20), a forward end surface of a second tubular member (22), and the outer peripheral surface of a valve seat member (24). A forward end portion of the second tubular member (22) is provided with a communication hole (84) radially penetrating the forward end portion. The pressure of the high-pressure fluid on the downstream side of a valve seat surface (52) causes a fluid path in the second tubular member to be communicated with the sealing ring setting space (39) via the communication hole (84) and via a gap between the seal ring setting surface (38) and the outer peripheral surface of the forward end portion of the second tubular member.
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申请公布号 |
US8342202(B2) |
申请公布日期 |
2013.01.01 |
申请号 |
US20080532565 |
申请日期 |
2008.03.19 |
申请人 |
NITTO KOHKI CO., LTD.;TOYOTA JIDOSHA KABUSHIKI KAISHA;NISHIO TAKUYA;GOTO KUNIHIKO;AOKI KAZUNORI;YAMAMOTO OSAMU;TASHIRO KAZUYOSHI;SUZUKI GORO;NOMURA SHINICHI;YOSHIDA KOSEI |
发明人 |
NISHIO TAKUYA;GOTO KUNIHIKO;AOKI KAZUNORI;YAMAMOTO OSAMU;TASHIRO KAZUYOSHI;SUZUKI GORO;NOMURA SHINICHI;YOSHIDA KOSEI |
分类号 |
F16K1/42 |
主分类号 |
F16K1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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