Method for the reduction of sound emission as well as for the im

Details Method for the reduction of sound emission as well as for the im Method for the reduction of sound emission as well as for the im

1994-03-25

1996-05-21

Denion, Thomas E.

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

415220, F01D 2504

Patent

active

055183646

ABSTRACT:
An axial flow machine (1) having a rotor (2) that rotates about a fixed axis (5) the rotor having a number of blades (4), and a casing (3), radially surrounding the rotor (2). A turbulence generator (14) is positioned in a ring-shaped gap (9) formed between the tips (7) of the blades (4) and the inner surface (8) of the casing (3) to limit the sound emission of the flow machine (1).

REFERENCES:
patent: 885032 (1908-04-01), de Ferranti
patent: 3321931 (1967-05-01), Lehmkuhl
patent: 3832085 (1974-08-01), DeFauw et al.
patent: 4273510 (1981-06-01), Ambrosch et al.
"Compressor Aerodynamics" by N. A. Cumpsty, Longman Scientific & Technical, 1989, pp. 401-408.

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