Title:
シールリング並びに複合材タンク、及び配管等のフランジ継手のシール構造
Document Type and Number:
Japanese Patent JP3978021
Kind Code:
B2
Abstract:
The object of this invention is to provide a structure of seal ring, and seal structure using the seal ring for flange joints of composite tanks and pipes, that prevents seal surface variations due to differences in thermal contraction between the seal ring and the tank/the flange joint, etc., that improves the resilience of the seal, and that prevents gas leakage due to poor sealing, in order to achieve the stable sealing. The seal ring (1) fits into a ring groove (15) formed in a sealed unit such as a tank unit (10) or a flange joint (11) to provide a tight seal to contain fluids. The heart-shaped seal ring (1) has three curved surface areas (3,4,5) that smoothly flow together, comprised of a first curved seal surface (5) which contacts the formed surface (100) of the ring groove (15), a second curved seal surface (4) which contacts the seal surface (11a) of a second member (11) (e.g. manhole cover), and a projecting curved surface (3) on the opposite side. The foregoing seal ring (1) is provided with a hollow cavity (2) formed with the three curved surfaces (3,4,5) of uniform thickness, and an indent (8) that passes through from the hollow to the fluid introduction side
Inventors:
Takunobu Kamiya
Makoto Watanabe
Tetsuya Iguchi
Makoto Watanabe
Tetsuya Iguchi
Application Number:
JP2001356326A
Publication Date:
September 19, 2007
Filing Date:
November 21, 2001
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
Eagle Engineering Aerospace Co., Ltd.
Eagle Engineering Aerospace Co., Ltd.
International Classes:
B65D90/00; F16J15/46; F16J12/00; F16J15/08; F16L17/025
Domestic Patent References:
| JP4117957U | ||||
| JP57190166U | ||||
| JP7260000A | ||||
| JP2054988U |
Attorney, Agent or Firm:
Masahisa Takahashi
Hisamaru Hanada
Hisamaru Hanada