초록 ▼

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 compr

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.

대표청구항 ▼

A hydrostatic bearing system comprising: a shaft; a hydrostatic bearing provided with fluid chambers at positions confronting the shaft for hydrostatically holding ferromagnetic fluid; sealing means at the axial sides of said chambers configured to allow movement between said hydrostatic bearing, an

A hydrostatic bearing system comprising: a shaft; a hydrostatic bearing provided with fluid chambers at positions confronting the shaft for hydrostatically holding ferromagnetic fluid; sealing means at the axial sides of said chambers configured to allow movement between said hydrostatic bearing, and said shaft; recovery grooves disposed at the axial sides of said chambers for collecting the ferromagnetic fluid squeezed out from the fluid chamber; magnetic sealing means disposed at positions from which the ferromagnetic fluid is squeezed out of the bearing system; circulating passages for circulating the ferromagnetic fluid collected between the recovery grooves and the fluid chambers; and impelling means disposed within said passages for impelling the ferromagnetic fluid toward said fluid chamber.