Method and a device in a rotating machine

Details Method and a device in a rotating machine Method and a device in a rotating machine

1993-03-31

1994-07-19

Kwon, John T.

Rotary kinetic fluid motors or pumps

Runner or blade selectively adjustable relative to casing

415131, F01D 2524

Patent

active

053303202

ABSTRACT:
A method and a device for controlling the blade tip clearance in a rotating machine where the machine comprises a turbine part and a compressor part separate from the turbine part and the stator housing of the turbine part is formed with a stator cone. The invention is characterized in that one or more bladed turbine discs during a non-steady operation, such as start-up, stop and load changes, are moved out of the stator cone whereby the blade tip clearance is increased and that the turbine discs during continuous operation are moved into the stator cone such that the blade top clearance is reduced.

REFERENCES:
patent: 1823310 (1931-09-01), Allen
patent: 2762559 (1956-09-01), Faught
patent: 3227418 (1966-01-01), West
patent: 4149826 (1979-04-01), Torstenfelt
patent: 4332523 (1982-06-01), Smith
patent: 5051061 (1991-09-01), Meylan
patent: 5203673 (1993-04-01), Evans

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