GB191300953A - Improvements in and relating to Turbine, Compressor and like Installations. - Google Patents

Abstract

953. Parsons, Sir C. A., Cook, S. S., and Carnegie, A. J. Jan. 13. Balancing moving parts. - End thrust in turbines, compressors, &c. is absorbed mainly or entirely by thrust blocks of the pivotedplate type. The application of the invention to a marine turbine is shown in Fig. 1, in which the whole of the end thrust, increased or diminished by the propeller thrust or by reversals of flow, is absorbed by collars f on the shaft bearing against two series of blocks c, pivoted either on central points, as shown, or on radial-line edges. A smaller set of pivoted blocks e is provided to keep the rotor in position and to take up any accidental back thrust. In a modification, a reversible turbine is provided with a double thrust bearing. In a further modification, a reversible turbine is provided with a double thrust bearing in which large blocks e, Fig. 4, take up forward thrust and small blocks c take up back thrust. The blocks c, e bear upon spherically-seated members 2, 3. In a further modification, the pivoted blocks m, Fig. 7, are pivoted upon spherical seats on the supporting - member p which is itself mounted upon a spherical seating 4. Only one set of blocks m is provided, the shaft being kept in position by a nut n. Other modifications are described in which the above-described thrust bearings are applied to various types of turbines and compressors.