Gas turbine construction and method of controlling the labyrinth seal clearance automatically and continuously
Patent 4405283 Issued on September 20, 1983. Estimated Expiration Date: 
June 17, 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.
June 17, 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 ReferencesInventorApplicationNo. 06/274379 filed on 06/17/1981US Classes:415/14, Casing, runner, or shaft position or extent of motion responsive248/901, SUPPORT HAVING TEMPERATURE OR PRESSURE RESPONSIVE FEATURE415/119, WITH SOUND OR VIBRATORY WAVE ABSORBING OR PREVENTING MEANS OR ARRANGEMENT415/230, Seal415/33Of adjustable runner, blade, shaft or bearingExaminersPrimary: Coe, Philip R.Assistant: Stinson, Frankie L. Attorney, Agent or FirmInternational ClassesF01D 25/28 (20060101)F01D 11/00 (20060101) F01D 11/02 (20060101) F01D 25/16 (20060101) Foreign Application Priority Data1980-06-19 DEAbstractA flow machine particularly a superheated gas turbine comprises a housing with a rotor disposed in the housing for rotation therein and sealed at each end with the housing by a labyrinth seal. The construction includes rotor shaft bearings which rotatably support the shafts and which are supported by bearing blocks disposed on the foundation. The housing and the shaft are mounted relative to each other by means of fluid pressure operated cushions adjacent each end of the shaft and adjacent the labyrinth seal so as to maintain the shafts and the seals with a predetermined clearance. | |
