Turbine engine compressor
Patent 4277222 Issued on July 7, 1981. Estimated Expiration Date: 
January 11, 1999. 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.
January 11, 1999. 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 2304259 3801353 Internal combustion engine with afterburning and catalytic reaction in a supercharger turbine casing Patent #: 4122673 InventorAssigneeApplicationNo. 06/002659 filed on 01/11/1979US Classes:415/177, INCLUDING HEAT INSULATION OR EXCHANGE MEANS (E.G., FINS, LAGGING, ETC.)415/174.5, Labyrinth seal416/185, Circumferentially and radially continuous web or end plate416/241R, Coating, specific composition or characteristic416/95WITH HEATING, COOLING OR THERMAL INSULATION MEANSExaminersPrimary: Gilreath, Stanley N.Attorney, Agent or FirmInternational ClassesF01D 5/04 (20060101)F01D 5/02 (20060101) AbstractIn a turbine engine of the type having a centrifugal air compressor open at one end to a combustion chamber, the improvement which comprises coating the back face of the air compressor with a thermal insulating material, such as zirconium oxide. The thermal insulating material effectively insulates the relatively cool air compressor from hot leakage gases from the combustor and subsequent turbine engine components thus minimizing thermal strain on the compressor and enabling higher compressor speeds and pressure ratios and/or reduced compressor weight. | |
