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US RE46,691 E1Granted
Hydrostatic bearing made of magnetic material which is also used as a motor magnet
AssigneeNew Way Machine Components, Inc.
InventorAndrew J. Devitt
Life of this patent
Estimating the term…
Abstract
A permanent magnet motor is provided with a housing, a rotating shaft supported within the housing, and magnetic coils arranged within the housing. A hydrostatic bearing is disposed on the rotating shaft, the hydrostatic bearing having a permanent magnet incorporated therewith that restricts movement of the rotating shaft in a radial direction.
Claims24
A permanent magnet motor/generator comprising:
- a housing;
- a rotating shaft supported within the housing;
- and
- a hydrostatic bearing disposed on the rotating shaft and within the housing, the hydrostatic bearing comprising a first face that is a porous permanent magnet and a second face that is coils,
- wherein the hydrostatic bearing is configured to distribute a pressurized fluid across a back surface of the porous permanent magnet,
- the porous permanent magnet is configured to issue the pressurized fluid through the back surface to the first face, and
- the first face and the second face arranged such that movement of the rotating shaft is restricted in a radial direction, whereby the permanent magnet and the coils are configured to generate electricity or create force.
4 more elements
A method for making a permanent magnet motor or generator, the method comprising:
- providing a housing with a rotating shaft supported therein;
- and
- disposing a hydrostatic bearing on the rotating shaft and within the housing, the hydrostatic bearing comprising a first face that is a porous permanent magnet and a second face that is coils,
- wherein the hydrostatic bearing is configured to distribute a pressurized fluid across a back surface of the porous permanent magnet,
- the porous permanent magnet is configured to issue the pressurized fluid through the back surface to the first face, and
- the first face and the second face arranged such that movement of the rotating shaft is restricted in a radial direction, whereby the porous permanent magnet and the coils are configured to generate electricity or create force.
3 more elements
A permanent magnet motor or generator comprising:
- a permanent magnet used as a restrictive element of a hydrostatic bearing;
- coils, wherein the hydrostatic bearing works directly between the permanent magnet and the coils and the permanent magnet and coils are configured to generate electricity or create force.
A permanent magnet motor or generator comprising:
- a housing;
- a rotating shaft supported within the housing;
- and
- a hydrostatic bearing disposed on the rotating shaft and within the housing, the hydrostatic bearing comprising a first face that is a porous permanent magnet and a second face,
- wherein the hydrostatic bearing is configured to distribute a pressurized fluid across a back surface of the porous permanent magnet,
- the porous permanent magnet is configured to issue the pressurized fluid through the back surface to the first face, and the first face and the second face arranged such that movement of the rotating shaft is restricted in an axial direction, whereby the first face and the second face are configured to generate electricity or create force.
3 more elements
A hydrostatic bearing comprising:
- a housing;
- a rotating shaft supported within the housing;
- and
- a hydrostatic bearing disposed on the rotating shaft and within the housing, the hydrostatic bearing comprising a first face and a second face,
- wherein the hydrostatic bearing is configured to distribute a pressurized fluid across a back surface of the porous permanent magnet,
- the first face is a porous permanent magnet configured to issue the pressurized fluid through the back surface to the first face,
- the first face and the second face arranged such that movement of the rotating shaft is restricted in either a radial or axial direction, and
- the first face and the second face are separated by a hydrostatic gap created by the pressurized fluid that issues from the first face, wherein the pressurized fluid removes heat the first face and the second face.
5 more elements
Dependencies are inferred from the claim text.