发明名称 PRESSURE ENERGIZED RADIAL SEAL
摘要 <p>A seal assembly disposed within a radial seal groove to sealingly engage a bonnet within a bore. The seal assembly includes a radial seal surface, an axial seal surface, a vent surface, and an axial preload surface. The seal assembly is thrust towards a longitudinal wall and away from a radial wall of the radial seal groove when pressure in a high-pressure zone increases.</p>
申请公布号 EP2049762(A4) 申请公布日期 2015.09.23
申请号 EP20070812857 申请日期 2007.07.12
申请人 HYDRIL USA MANUFACTURING LLC 发明人 BERCKENHOFF, MICHAEL, WAYNE
分类号 E21B33/00;E21B33/06;F16J15/48 主分类号 E21B33/00
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