Rotary kinetic fluid motors or pumps – Including thermal expansion joint – Radially sliding
Patent
1974-12-23
1976-11-09
Raduazo, Henry F.
Rotary kinetic fluid motors or pumps
Including thermal expansion joint
Radially sliding
415217, 415218, 415115, F01D 514, F01D 2526
Patent
active
039908070
ABSTRACT:
This invention shows a shroud construction located around the tips of the blades on a rotating body in an engine to provide a minimum clearance between the blade tips and the shroud during all conditions of operation-acceleration, steady state and deceleration. This shroud construction provides an arrangement where the internal diameter of the vanes support the shroud member for the tips of the blades. The vane is supported as internal diameter to an internal support while the outer diameter of the vane is permitted radial growth with respect to the turbine casing. While the blade tip shroud can be made integral with the outer shroud of the vanes, it may be connected by means which will permit a small axial misalignment. Means are provided for cooling the shrouds around the tips of the blades.
REFERENCES:
patent: 2427244 (1947-09-01), Warner
patent: 2488867 (1949-11-01), Judson
patent: 2488875 (1949-11-01), Morley
patent: 2557898 (1951-06-01), Thompson
patent: 2793832 (1957-05-01), Wheatley et al.
patent: 2859011 (1958-11-01), Zimmerman
patent: 2859934 (1958-11-01), Halford et al.
patent: 3295823 (1967-01-01), Waugh et al.
patent: 3644057 (1972-02-01), Steinbarger
patent: 3945758 (1976-03-01), Lee
McCarthy Jack N.
Raduazo Henry F.
United Technologies Corporation
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