专利名称：METAL SEAL OF VALVE 发明人：JINNAI TEIJI
申请号：JP878079
bylayer申请日：19790130
杨颖个人资料公开号：JPS55103163A
公开日：
芋头丸子
19800807
卫生间吊顶高度专利内容由知识产权出版社提供失根的兰花>湖北填志愿
摘要：PURPOSE:To provide effective shut-off of fluid with metal-to-metal contact while taking advantage of fluid pressure at the time of shut-off, by putting a certain type of metal at in an annular groove having a T-shaped cross ction formed in the flow passage of a valve. CONSTITUTION:As an inner valve 4 is clod to shut off the flow passage, an inclined valve at face 5 of the inner valve 4 comes in touch with an inclined contact face 11 of a metal at 1. Then the metal at 1 is pushed in the direction opposite to the flow passage and a reaction force is produced to increa the face pressure of contact between both faces 11, 5 for almost complete shut-off of the fluid. The fluid pressure at this moment in the passage reaches a pressure chamber 7 through a clearance 9 to press the metal at 1 toward the valve at face 5, at junk 3 and valve body 2. This also contributes to increa the contact pressure between the said both faces 5, 11 and between the tip opposite to the contact face 11 and the valve body 2. This double effect provides sure shut-off of the fluid.
也许放弃才能靠近你>喷泉英语
申请人：TOKYO KOSO KK
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