发明名称 |
Anordning for minsking av bøyespenning i flensforbindelser |
摘要 |
An apparatus for reducing the bending stress imparted to threaded fasteners in flanged connections is disclosed. The apparatus includes a stress reducing washer positioned between the head of the threaded fastener and a counterbore in the backface of the flange. In a first embodiment, the stress reducing washer uses a tapered upper surface oriented with respect to the flange to compensate for flange deflection as the threaded fastener is tightened to a predetermined torque value. Second and third embodiments utilizing spherical and cylindrical surfaces are also shown. A fourth embodiment eliminates the need for the stress reducing washer and machines the tapered surface in the backface of the flange. |
申请公布号 |
NO339933(B1) |
申请公布日期 |
2017.02.20 |
申请号 |
NO20110001403 |
申请日期 |
2011.10.17 |
申请人 |
Cooper Cameron Corp |
发明人 |
Walker Stephen J;Nguyen Lan T |
分类号 |
F16L23/02;F16L23/00;F16L23/032 |
主分类号 |
F16L23/02 |
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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