发明名称 Hydrostatic bearing utilizing a ferromagnetic fluid
摘要 A hydrostatic bearing system utilizing ferromagnetic fluid exclusively as working fluid including that used for sealing for preventing the ferromagnetic fluid itself from escaping outside the bearing. In order to accomplish the objects and function, the hydrostatic bearing system proposed here comprises, in addition to ordinary parts or components used in the conventional type, a fluid chamber for containing the ferromagnetic fluid as a working fluid, a circulating passage, at least a recovery groove for collecting the fluid squeezed out of the fluid chamber, a magnetic seal to prevent the fluid from escaping and at least an impelling device to forcibly deliver the ferromagnetic fluid at a predetermined pressure and flow rate. The impelling device can be constructed utilizing a shifting magnetic field, or multilayered rings fabricated of piezo-electric components, or of impelling cylinders having axially lengthenee or reduced in length.
申请公布号 US4809354(A) 申请公布日期 1989.02.28
申请号 US19870130985 申请日期 1987.12.10
申请人 NIPPON SEIKO KABUSHIKI KAISHA 发明人 KAWASHIMA, SOUSUKE
分类号 F16C32/06;F16C33/10;(IPC1-7):F16C32/06;F16C33/74;F04B17/00;H02K44/00 主分类号 F16C32/06
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