Seal ring

专利名称：Seal ring发明人：Toshihiko Kuroki申请号：US08/104921申请日：19930729公开号：US05303936A公开日：19940419

摘要：A seal ring for sealing a space formed between a cylinder and a movablemember inserted into the cylinder is essentially composed of a seal ring body which isfitted into a groove formed in the inner periphery of the cylinder. The seal ring body isformed of a resin material such as fluoride resin and a filler mixed with the resin materialso that the seal ring body has a thermal expansion coefficient substantially equal to thatof the cylinder. The filler is also mixed with the resin material so that the filler is orientedin a circumferential direction of the seal ring body. It is preferred to use a filler made ofcarbon fiber having an aspect ratio of about 5 to 400.

申请人：NOK CORPORATION

代理机构：Armstrong, Westerman, Hattori, McLeland, & Naughton

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