Magnetic thrust bearings
First Claim
1. A magnetic thrust bearing for a rotating machine having a shaft extending along an axis, the magnetic thrust bearing comprising:
- a rotor core configured to extend coaxially around the shaft, the rotor core having a substantially radially extending thrust face and a substantially axially extending peripheral surface;
a non-magnetic element configured to be coaxially disposed on the shaft, wherein the non-magnetic element radially spaces the thrust face from the shaft; and
a stator comprising a stator core and a coil both configured to extend coaxially around the axis, wherein the stator core comprises a substantially radially extending first pole surface and a substantially axially extending second pole surface, the first pole surface defines an axial air gap with the thrust face, and the second pole surface defines a radial air gap with the peripheral surface.
2 Assignments
0 Petitions
Accused Products
Abstract
Rotating machines and magnetic thrust bearings therefor are disclosed. Magnetic thrust bearings may include a rotor core configured to extend coaxially around a shaft of a rotating machine, a non-magnetic element configured to be coaxially disposed on the shaft, and a stator comprising a stator core and a coil, both of which are configured to extend coaxially around the axis. The rotor core may include a substantially radially extending thrust face and a substantially axially extending peripheral surface. The non-magnetic element may radially space the thrust face from the shaft. The stator core may include a substantially radially extending first pole surface and a substantially axially extending second pole surface. The first pole surface may define an axial air gap with the thrust face, and the second pole surface may define a radial air gap with the peripheral surface.
-
Citations
20 Claims
-
1. A magnetic thrust bearing for a rotating machine having a shaft extending along an axis, the magnetic thrust bearing comprising:
-
a rotor core configured to extend coaxially around the shaft, the rotor core having a substantially radially extending thrust face and a substantially axially extending peripheral surface; a non-magnetic element configured to be coaxially disposed on the shaft, wherein the non-magnetic element radially spaces the thrust face from the shaft; and a stator comprising a stator core and a coil both configured to extend coaxially around the axis, wherein the stator core comprises a substantially radially extending first pole surface and a substantially axially extending second pole surface, the first pole surface defines an axial air gap with the thrust face, and the second pole surface defines a radial air gap with the peripheral surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A rotating machine, comprising:
-
a shaft having an exterior surface; a magnetic thrust bearing rotor core extending coaxially around the shaft, the magnetic thrust bearing rotor core having a radially extending thrust face and an axially extending peripheral surface; a magnetic thrust bearing stator comprising a coil and a stator core that both extend coaxially around the shaft, wherein the stator core comprises a radially extending pole surface and an axially extending pole surface, the radially extending pole surface defining an axial air gap with the thrust face, and the axially extending pole surface defining a radial air gap with the peripheral surface; and a non-magnetic element disposed around the exterior surface of the shaft, wherein the non-magnetic element radially spaces the axial air gap from the exterior surface of the shaft. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification