Hydrodynamic fluid film thrust bearing
Patent 4462700 Issued on July 31, 1984. Estimated Expiration Date: 
November 23, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 23, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2897026 3382014 3893733 Compliant hydrodynamic bearing with improved support element Compliant hydrodynamic bearing with tubular support element Hydrodynamic compliant thrust bearing Staged bearing surface compliance for hydrodynamic fluid bearing Support element for compliant hydrodynamic journal bearings Nested Belleville spring support for compliant thrust bearings Patent #: 4331365 InventorApplicationNo. 06/324220 filed on 11/23/1981US Classes:384/105, Thrust bearing384/106Auxiliary resilient supportExaminersPrimary: Footland, Lenard A.Attorney, Agent or FirmInternational ClassesF16C 17/00 (20060101)F16C 17/12 (20060101) AbstractA hydrodynamic fluid film thrust bearing including a stationary thrust plate 15, a rotating thrust runner 20 spaced therefrom, and at least one foil 50 disposed therebetween, is provided with first and second sets 25 and 45 of overlying resilient backing members in axial alignment with the foil. One of the backing members 25, having a lower relative spring constant, provides the bearing with compliance for adequate load capacity and damping characteristics. The other backing member 45, having a higher relative spring constant, establishes and maintains an optimum fluid film geometry under all loading, speed and other operating conditions. | |
