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US 5,394,044 AGranted
Magnetic bearing device
AssigneeNippon Ferrofluidics Corporation
InventorAkira Yamamura
Life of this patent
Estimating the term…
Abstract
This invention discloses a magnetic bearing device comprising a rotary member rotatably supported on a supporting member through a magnetic bearing, a free oscillating member which is oscillatable almost coaxially with the rotary member and disposed at a position not being in contact with both supporting member and rotary member, magnetic coupling member for oscillating the free oscillating member and the rotary member together, and a damping member disposed between the free oscillating member and the supporting member.
Claims4
A magnetic bearing device comprising:
- an intermediate member oscillatably supported on a supporting member through a damping member;
- magnetic coupling means for magnetically coupling said intermediate member and said supporting member;
- and
- a rotary member rotatably supported on said intermediate member through a magnetic bearing having a portion imbedded within said rotary member and another portion imbedded within said intermediate member.
1 more element
A magnetic bearing device comprising:
- an intermediate member oscillatably supported on a supporting member through a damping member;
- nonlinear resilient means for resiliently coupling said intermediate member and said supporting member, said resilient means having a return force which is proportional to a displacement thereof;
- and
- a rotatably supported on said intermediate member through a magnetic bearing having a portion imbedded within said rotary member and another portion imbedded within said intermediate member.
1 more element
Dependencies are inferred from the claim text.