A foil bearing assembly for supporting a rotating member that rotates about an axis including a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member. A foil member is disposed in the gap between the rotating memb
A foil bearing assembly for supporting a rotating member that rotates about an axis including a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member. A foil member is disposed in the gap between the rotating member and the stationary mount member. At least one of the rotating member, the stationary mount member or the foil member includes a wear resistant coating layer.
대표청구항▼
What is claimed is: 1. A foil bearing assembly for supporting a rotating member that rotates about an axis, the foil bearing assembly comprising: a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member; and a foi
What is claimed is: 1. A foil bearing assembly for supporting a rotating member that rotates about an axis, the foil bearing assembly comprising: a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member; and a foil member disposed in the gap between the rotating member and the stationary mount member to support the rotating member via a fluid film when the rotating member rotates, wherein at least one of the stationary mount member, the rotating member and the foil member includes a wear resistant coating layer formed of a refractory material including rhenium. 2. A foil bearing assembly as claimed in claim 1, wherein the rotating member comprises a shaft having a substantially cylindrical portion, and the stationary mount member surrounds the shaft so that the gap is formed as an annular gap defined between a cylindrical surface of the substantially cylindrical portion of the shaft and the stationary mount member. 3. A foil bearing assembly as claimed in claim 2, wherein the foil bearing assembly constitutes a journal bearing. 4. A foil bearing assembly as claimed in claim 1, wherein the rotating member comprises a disk-shaped member and the gap is defined between the stationary mount member and a planar surface of the disk-shaped member. 5. A foil bearing assembly as claimed in claim 4, wherein the foil bearing assembly constitutes a thrust bearing. 6. A foil bearing assembly as claimed in claim 1, wherein the refractory material includes a largest constituent being rhenium by atomic percent. 7. A foil bearing assembly as claimed in claim 6, wherein the refractory material is pure rhenium. 8. A foil bearing assembly as claimed in claim 6, wherein the refractory material is selected from a group consisting of elemental rhenium, a rhenium alloy, a rhenium nitride, rhenium boride and rhenium fluoride. 9. A foil bearing assembly as claimed in claim 8, wherein the rhenium alloy includes an alloying substance with an affinity for oxidizing substances. 10. A foil bearing assembly as claimed in claim 9, wherein the alloying substance having an affinity for oxidizing substances includes at least one of chromium, cobalt, nickel, titanium, thorium, aluminum, hafnium, vanadium, silicon, aluminum, and a rare earth metal. 11. A foil bearing assembly as claimed in claim 1, wherein the foil member is comprised of a solid sheet of the refractory material. 12. A foil bearing assembly as claimed in claim 1, wherein the wear resistant coating layer is formed on at least one of an interior diameter, an exterior diameter, and a planar surface of at least one of the rotating member, the stationary mount member and the foil member. 13. A foil bearing assembly as claimed in claim 1, wherein the wear resistant coating layer is disposed over a substrate material of at least one of nickel, cobalt, iron, or alloy thereof. 14. A foil bearing assembly as claimed in claim 13, wherein the wear resistant coating layer is disposed on an intermediate bonding layer, the intermediate bonding layer disposed on the substrate material. 15. A foil bearing assembly as claimed in claim 14, wherein the intermediate bonding layer is a eutectic alloy. 16. A foil bearing assembly for supporting a rotating member configured to rotate about an axis, the foil bearing assembly comprising: a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member, the rotating member arranged for relative coaxial rotation with respect to the stationary mount member; a foil member disposed in the gap between the rotating member and the stationary mount member; wherein at least one of the stationary mount member, the rotating member and the foil member includes a wear resistant coating layer formed of a refractory material including a largest constituent being rhenium by atomic percent. 17. A foil bearing assembly as claimed in claim 16, constitutes a journal bearing wherein the rotating member comprises a shaft having a substantially cylindrical portion, and the stationary mount member surrounds the shaft so that the gap is formed as an annular gap defined between a cylindrical surface of the substantially cylindrical portion of the shaft and the stationary mount member. 18. A foil bearing assembly as claimed in claim 16, wherein foil bearing constitutes a thrust bearing wherein the rotating member comprises a disk-shaped member and the gap is defined between the stationary mount member and a planar surface of the disk-shaped member. 19. A foil bearing assembly as claimed in claim 16, wherein the refractory material is pure rhenium. 20. A foil bearing assembly as claimed in claim 16, wherein the refractory material is selected from a group consisting of elemental rhenium, a rhenium alloy, a rhenium nitride, rhenium boride and rhenium fluoride. 21. A foil bearing assembly as claimed in claim 20, wherein the rhenium alloy includes an alloying substance with an affinity for oxidizing substances. 22. A foil bearing assembly as claimed in claim 16, wherein the wear resistant coating layer is formed on an interior diameter of a bore formed in the stationary mount member. 23. A foil bearing assembly as claimed in claim 16, wherein the wear resistant coating layer is formed on at least one of an interior diameter, an exterior diameter, and a planar surface of at least one of the rotating member, the stationary mount member and the foil member. 24. A foil bearing assembly as claimed in claim 16, wherein the wear resistant coating layer is disposed on an intermediate bonding layer, the intermediate bonding layer disposed on a substrate material. 25. A foil bearing assembly for supporting a rotating member configured to rotate about an axis, the foil bearing assembly comprising: a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member, the stationary mount member including a bore formed therein, the rotating member disposed within the bore and arranged for relative coaxial rotation with respect to the stationary mount member; and a foil member disposed in the gap between the rotating member and the stationary mount member; wherein at least one of the bore and the foil member includes a substrate and a wear resistant coating layer formed of a refractory material selected from a group consisting of elemental rhenium, a rhenium alloy, a rhenium nitride, rhenium boride and rhenium fluoride disposed on an intermediate bonding layer, the intermediate bonding layer disposed on a substrate material.
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이 특허에 인용된 특허 (11)
Hagemeister Klaus (Munich DEX), Aerodynamic radial bearing.
Fuchs Manfred (Nuremberg DEX) Hell Erich (Erlangen DEX), Metal lubricated plain bearing having a bearing part adjoining a bearing surface wetted with liquid metal during operati.
Hiller Bernhard (Buckenhof DEX) Gemmel Edwin (Erlangen DEX) Koeppel Roland (Erlangen DEX) Kuehnel Wolfgang (Rudolstadt DEX), Plain bearing having a bearing gap filled with liquid metal.
Roelandse Cornelius D. (Eindhoven NLX) Hokkeling Pieter (Eindhoven NLX), X-ray tube having a rotary anode with rhenium-containing bearing surfaces for a gallium-alloy lubricant.
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