Quiet compressed air turbine fan

Details Quiet compressed air turbine fan Quiet compressed air turbine fan

1991-08-27

1994-01-04

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Nozzle discharging onto motor runner

415912, 417408, F01D 902

Patent

active

052755339

ABSTRACT:
A compressed air turbine driven fan having an axial blade fan impeller driven by a partial admission radial inflow air turbine, with both the fan blades and the turbine blades mounted on the hub rim of a single fan-turbine wheel. The turbine exhaust is discharged into a cavity surrounding the shaft of the fan-turbine wheel. In a preferred embodiment, a sound surpressing muffler made of plates having air passage offset from each other is provided with the cavity. Turbine exhaust air exists through the passages to mix with the fan flow.

REFERENCES:
patent: 2219937 (1940-10-01), Ponomareff
patent: 3607779 (1971-09-01), King
patent: 4066381 (1978-01-01), Earnest
patent: 4469536 (1990-11-01), Allen
patent: 5013214 (1991-05-01), Kapich

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