Claims
- 1. A magnetic primary bearing with a secondary bearing system, the secondary bearing system comprising:
a first contact surface coated with a highly resilient material capable of resisting impact and wear at high temperatures; and a second contact surface coated with a highly resilient material capable of resisting impact and wear at high temperatures, the second contact surface being initially separated from the first contact surface.
- 2. A bearing system as set forth in claim 1, further comprising:
the first and second contact surfaces able to rotate at high speed with respect to one another and withstanding contact with one another.
- 3. A bearing system as set forth in claim 1, further comprising:
the first contact surface mounted for rotation with a primary bearing shaft; and the second contact surface mounted to a secondary bearing shaft.
- 4. A bearing system as set forth in claim 1, further comprising:
the first contact surface coupled to a stub; the second contact surface coupled to a shaft defining a socket hollow; and the stub fitting within the socket hollow when the first contact surface contacts the second contact surface.
- 5. A bearing system as set forth in claim 1, further comprising:
the first contact surface circumscribing a first support annulus; and the second contact surface circumscribing a second support annulus.
- 6. A bearing system as set forth in claim 1, further comprising:
the first contact surface coupled to a primary bearing shaft of a magnetic bearing; the second contact surface coupled to a secondary mechanical bearing; and the first and second contact surfaces configured to engage each other such that the secondary mechanical bearing engages and supports the primary bearing shaft when the first contact surface engages the second contact surface.
- 7. A bearing system as set forth in claim 1, further comprising:
the first and second contact surfaces part of an IPACS.
- 8. A bearing system as set forth in claim 1, further comprising:
the first and second contact surfaces respectively supported by first and second substrates; and the highly resilient material being a mixture of powdered ceramic and powdered metal that have been fused to the respective substrate.
- 9. A bearing system as set forth in claim 8, wherein the first and second substrates further comprise steel.
- 10. A bearing system as set forth in claim 9, wherein the first and second substrates further comprise an aluminum alloy of steel.
- 11. A bearing system as set forth in claim 10, wherein the first and second substrates further comprise aluminum alloys of steel selected from the group consisting of 135M, Nitralloy 135M, Nitralloy EZ, Nitralloy G, Nitralloy N, SAE 7140, AMS 6470, AMS 6475, Nitralloy N135M, thermally conductive steels, and steels having at least 0.011% by weight of aluminum.
- 12. A bearing system as set forth in claim 8, wherein the powdered ceramic further comprises silicon carbide (SiC).
- 13. A bearing system as set forth in claim 8, wherein the powdered ceramic further comprises powdered ceramic selected from the group consisting of alumina, alumina titanate, aluminum nitride, and mixtures thereof., beryllium oxide, boron nitride, braided ceramic fibers, carbide/cobalt hardmetal, cast carbide, ceramic eutectic composites, coarse-grained tungsten, coated silicon nitride, cobalt oxide, conventional carburized tungsten carbide, diamond, entatite, fosterite, hot-press matrices, infiltration matrices, macrocrystalline tungsten carbide powder, macrocrystalline tungsten carbide sintered tungsten, metal matrix composites, multi-layered PVD coatings, nickel oxide, niobium carbide powder, physical vapor deposition coatings, reaction bonded silicon nitride, reaction bonded tungsten carbide, reaction bonded tungsten carbide and sintered tungsten carbide, silica zirconia, silicon carbide whiskers, silicon carbide fibers, silicon carbide whisker-reinforced alumina ceramic, silicon nitride, sintered tungsten carbide, tantalum carbide powder, tantalum niobium carbide powder, titanium carbide, titanium carbide-titanium nitride, titanium carbide-titanium nitride-based carbide and ceramic substrates, titanium carbide-titanium nitride-based carbide substrates, titanium carbide-titanium nitride-based ceramic substrates, titanium carbonitride powder, titanium diboride, titanium nitride powder, tungsten carbide macrocrystalline tungsten carbide, tungsten disulfide, tungsten metal powder, tungsten sulfide, tungsten titanium carbide powder, zirconia, and mixtures thereof.
- 14. A bearing system as set forth in claim 8, further comprising:
the powdered metal being powdered refractory metal-based material.
- 15. A bearing system as set forth in claim 14, further comprising:
the powdered refractory metal being powdered rhenium.
- 16. A bearing system as set forth in claim 14, further comprising:
the powdered refractory metal being powdered rhenium-based material.
- 17. A bearing system as set forth in claim 8, wherein the mixture of powdered ceramic and powdered metal have been fused to the respective substrate by sintering.
- 18. A magnetic primary bearing with a secondary bearing system, the secondary bearing system comprising:
a first contact surface coated with a highly resilient material capable of resisting impact and wear at high temperatures, the first contact surface mounted for rotation with a primary bearing shaft and a stub, the first contact surface circumscribing a first support annulus; a second contact surface coated with a highly resilient material capable of resisting impact and wear at high temperatures, the second contact surface mounted to a secondary bearing shaft defining a socket hollow, the second contact surface circumscribing a second support annulus; the first and second contact surfaces able to rotate at high speed with respect to one another and withstanding contact with one another while resisting spalling; and the stub fitting within the socket hollow when the first contact surface contacts the second contact surface.
- 19. A bearing system as set forth in claim 18, further comprising:
the first contact surface coupled to a primary bearing shaft of a magnetic bearing; the second contact surface coupled to a secondary mechanical bearing; and the first and second contact surfaces configured to engage each other such that the secondary mechanical bearing engages and supports the primary bearing shaft when the first contact surface engages the second contact surface.
- 20. A bearing system as set forth in claim 19, further comprising:
the first and second contact surfaces part of an IPACS.
- 21. A magnetic primary bearing with a secondary bearing system, the secondary bearing system comprising:
a first rhenium-reinforced bearing surface coupled to a primary bearing shaft; and a second rhenium-reinforced bearing surface coupled to a mate to the primary bearing shaft and generally oppositely opposed the first rhenium-reinforced bearing surface; whereby damage caused by contact between the primary bearing shaft and its mate is minimized by impact and wear-resistant qualities of the first and second rhenium-reinforced bearing surfaces.
- 22. A secondary mechanical bearing for an IPACS system as set forth in claim 21, further comprising:
the first and second rhenium-reinforced bearing surfaces each having a thin and hardened exposed contact layer and a softer, more ductile underlying layer coupled to the contact layer.
- 23. A magnetic primary bearing with a secondary bearing system, the secondary bearing system comprising:
a first refractory metal-reinforced bearing surface coupled to a primary bearing shaft; and a second refractory metal-reinforced bearing surface coupled to a mate to the primary bearing shaft and generally oppositely opposed the first refractory metal-reinforced bearing surface; whereby damage caused by contact between the primary bearing shaft and its mate is minimized by impact and wear-resistant qualities of the first and second refractory metal-reinforced bearing surfaces.
- 24. A magnetic primary bearing with a secondary bearing system as set forth in claim 23, the secondary bearing system further comprising.
- 25. A bearing system as set forth in claim 23, further comprising:
the first and second refractory metal-reinforced bearing surfaces respectively supported by first and second substrates and reinforced by highly resilient material incorporating refractory metal; and the highly resilient material being a mixture of powdered ceramic and powdered metal that have been fused to the respective substrate.
- 26. A bearing system as set forth in claim 25, wherein the first and second substrates further comprise steel.
- 27. A bearing system as set forth in claim 26, wherein the first and second substrates further comprise an aluminum alloy of steel.
- 28. A bearing system as set forth in claim 27, wherein the first and second substrates further comprise aluminum alloys of steel selected from the group consisting of 135M, Nitralloy 135M, Nitralloy EZ, Nitralloy G, Nitralloy N, SAE 7140, AMS 6470, AMS 6475, Nitralloy N135M, thermally conductive steels, and steels having at least 0.011% by weight of aluminum.
- 29. A bearing system as set forth in claim 25, wherein the powdered ceramic further comprises silicon carbide (SiC).
- 30. A bearing system as set forth in claim 25, wherein the powdered ceramic further comprises powdered ceramic selected from the group consisting of alumina, alumina titanate, aluminum nitride, and mixtures thereof., beryllium oxide, boron nitride, braided ceramic fibers, carbide/cobalt hardmetal, cast carbide, ceramic eutectic composites, coarse-grained tungsten, coated silicon nitride, cobalt oxide, conventional carburized tungsten carbide, diamond, entatite, fosterite, hot-press matrices, infiltration matrices, macrocrystalline tungsten carbide powder, macrocrystalline tungsten carbide sintered tungsten, metal matrix composites, multi-layered PVD coatings, nickel oxide, niobium carbide powder, physical vapor deposition coatings, reaction bonded silicon nitride, reaction bonded tungsten carbide, reaction bonded tungsten carbide and sintered tungsten carbide, silica zirconia, silicon carbide whiskers, silicon carbide fibers, silicon carbide whisker-reinforced alumina ceramic, silicon nitride, sintered tungsten carbide, tantalum carbide powder, tantalum niobium carbide powder, titanium carbide, titanium carbide-titanium nitride, titanium carbide-titanium nitride-based carbide and ceramic substrates, titanium carbide-titanium nitride-based carbide substrates, titanium carbide-titanium nitride-based ceramic substrates, titanium carbonitride powder, titanium diboride, titanium nitride powder, tungsten carbide macrocrystalline tungsten carbide, tungsten disulfide, tungsten metal powder, tungsten sulfide, tungsten titanium carbide powder, zirconia, and mixtures thereof.
- 31. A bearing system as set forth in claim 25, further comprising:
the powdered metal being powdered refractory metal-based material.
- 32. A bearing system as set forth in claim 31, further comprising:
the powdered refractory metal being powdered rhenium.
- 33. A bearing system as set forth in claim 31, further comprising:
the powdered refractory metal being powdered rhenium-based material.
- 34. A bearing system as set forth in claim 25, wherein the mixture of powdered ceramic and powdered metal have been fused to the respective substrate by sintering.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This patent application is related to and claims priority from the following provisional patent applications:
[0002] U.S. Provisional Patent Application Serial No. 60/384,587 filed May 31, 2002 for IPACS Secondary Bearing with Rhenium or Rhenium Alloy Coating;
[0003] U.S. Provisional Patent Application Serial No. 60/384,737 filed May 31, 2002 for Reduced Temperature and Pressure Powder Metallurgy Process for Consolidating Rhenium Alloys; and
[0004] U.S. Provisional Patent Application Serial No. 60/384,631 filed May 31, 2002 for Use of Powdered Metal Sintering/Diffusion Bonding to Enable Applying Silicon Carbide or Rhenium Alloys to Face Seal Rotors.
[0005] This patent application is related to and claims priority from the following regular utility applications:
[0006] this application is a continuation-in-part of U.S. patent application Ser. No. 10/138,090 filed May 3, 2002 for Oxidation and Wear Resistant Rhenium Metal Matrix Composite;
[0007] this application is a continuation-in-part of U.S. patent application Ser. No. ______ filed May 15, 2003 for Use of Powdered Metal Sintering/Diffusion Bonding to Enable Applying Silicon Carbide or Rhenium Alloys to Face Seal Rotors having a Honeywell docket number of H0002469;
[0008] this application is a continuation-in-part of U.S. patent application Ser. No. 10/138,087 filed May 3, 2002 for Oxidation Resistant Rhenium Alloys; and
[0009] this application is a continuation-in-part of U.S. patent application Ser. No. 10/243,445 filed Sep. 13, 2002 for Reduced Temperature and Pressure Powder Metallurgy Process for Consolidating Rhenium Alloys.
[0010] The foregoing provisional and regular patent applications and the foregoing issued patents are incorporated herein by reference.
Provisional Applications (3)
|
Number |
Date |
Country |
|
60384587 |
May 2002 |
US |
|
60384737 |
May 2002 |
US |
|
60384631 |
May 2002 |
US |
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
10138090 |
May 2002 |
US |
Child |
10447341 |
May 2003 |
US |
Parent |
10138087 |
May 2002 |
US |
Child |
10447341 |
May 2003 |
US |
Parent |
10243445 |
Sep 2002 |
US |
Child |
10447341 |
May 2003 |
US |