Compressor and method of operating it

Details Compressor and method of operating it Compressor and method of operating it

1994-06-03

1997-02-25

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including additional means causing or controlling fluid flow...

415 1, 415134, 4151732, F01D 2510, F01D 1114

Patent

active

056054378

ABSTRACT:
In a compressor (1), in particular for a gas turbine, which compressor includes a rotor (3), which is rotatably supported about a compressor center line and possesses at its periphery a plurality of rotor blades (5a-d), and a compressor casing (2), which concentrically surrounds the rotor (3), a radial clearance being provided between the outer ends of the rotor blades (5a-d) and the inner wall of the compressor casing (2), the possibility of a warm start without sacrificing efficiency is achieved by configuring the compressor casing (2) so that it can be heated in order to reduce the fluctuations in the radial clearance and by connecting it to a separate heating appliance (22, 25, 27), which is independent of the operation of the compressor and by means of which the compressor casing can be heated in the case of a warm start.

REFERENCES:
patent: 2655308 (1953-10-01), Luttman
patent: 4230436 (1980-10-01), Davison
patent: 4386885 (1983-06-01), Beckershoff
patent: 4721433 (1988-01-01), Piendel et al.
patent: 4849895 (1989-07-01), Kervistin
patent: 5219268 (1993-06-01), Johnson
"Thermal Response Turbine Shroud Study", E. J. Kawecki, Technical Report, Jul. 1979.

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