Gas bearing
AssigneeDr. Johannes Heidenhain GmbH
InventorAlfons Spies
Life of this patent
Estimating the term…
Abstract
A gas bearing for textile machine applications includes a rotor having a bearing surface shaped to define a truncated conical bearing surface and a foil shell having a corresponding truncated conical shape. This gas bearing supports both radial and axial loads, and two such bearings may be combined to support axial loads in two directions as well as radial loads.
Claims17
A gas bearing for rapidly rotating parts in spinning and twisting textile machines, said bearing comprising:
- a rotor having a first bearing surface shaped to define a truncated, substantially conical surface;
- a first bearing foil shell mounted adjacent the first bearing surface, said foil shell shaped to define a truncated, substantially conical surface, said foil shell including at least one foil having first and second ends, each of which is provided with a weakened portion.
A gas bearing for rapidly rotating parts in textile machines, said bearing comprising:
- a rotor having a first bearing surface shaped to define a truncated, substantially conical surface;
- a bearing foil shell mounted adjacent the first bearing surface, said foil shell shaped to define a truncated, substantially conical surface, said foil shell defining a plurality of weakened portions spaced around the foil shell, said weakened portions acting to increase the flexibility of the foil shell and thereby to improve the extent to which the foil shell conforms to the bearing surface of the rotor.
A gas bearing for rapidly rotating parts in textile machines, said bearing comprising:
- a rotor having a first bearing surface shaped to define a truncated, substantially conical surface;
- three foil support surfaces mounted adjacent the bearing surface of the rotor;
- three foils, each foil mounted to a respective pair of foil support surfaces such that the three foils cooperate to define a foil shell shaped to define a truncated, substantially conical surface which matches the configuration of the first bearing surface of the rotor;
- each of said foils defining two spaced pairs of opposed notches, each pair of opposed notches positioned adjacent a respective one of the bearing surfaces, each pair of opposed notches acting to form a weakened portion of the respective foil, thereby increasing the flexibility of the respective foil and improving the extent to which the foils conform to the first bearing surface of the rotor.
Dependencies are inferred from the claim text.