초록

A foil bearing turbomachine including magnetic relief of the thrust forces and static friction imposed on the foil thrust bearing during start up of the turbomachine.

대표청구항 ▼

A turbomachine comprising: a housing; a rotatable wheel mounted on a shaft and disposed within said housing; bearing means to rotatably support said rotatable wheel within said housing, said bearing means including a foil thrust bearing to axially restrain said rotatable wheel; and magnetic means op

A turbomachine comprising: a housing; a rotatable wheel mounted on a shaft and disposed within said housing; bearing means to rotatably support said rotatable wheel within said housing, said bearing means including a foil thrust bearing to axially restrain said rotatable wheel; and magnetic means operably associated with said housing and said rotatable wheel to reduce the static friction on the foil thrust bearing of said bearing means, said magnetic means comprising a ferromagnetic generally flared cup-shaped nut threaded to one end of the rotatable wheel shaft, said generally flared cup-shaped nut including a generally cylindrical recessed pad disposed therein, and a permanent magnet means mounted within said housing in juxtaposition to said ferromagnetic end nut.