Bleedoff of gas diffusers in fluid flow machines

Details Bleedoff of gas diffusers in fluid flow machines Bleedoff of gas diffusers in fluid flow machines

1981-10-06

1984-07-17

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3907, 60 395, 415172R, 415DIG1, F02C 700

Patent

active

044598025

ABSTRACT:
In a fluid flow machine comprising a compressor including a compressor diffuser and a turbine including an exhaust gas diffuser compressed air from boundary layers or vortex flows in the compressor diffuser, or leakage air from the compressor, is bled off and used as a driving medium for removing exhaust gas from boundary layers or vortex flows in the exhaust gas diffuser. Since the pressure of the exhaust gas to be removed from the exhaust gas diffuser is below the ambient pressure a suction has to be established to remove the desired gas from the boundary layers or vortex flows. This suction is established by an ejector or a pump which is driven by the energy of the compressed air bled from the compressor regions.

REFERENCES:
patent: 3019736 (1962-02-01), Stalker
patent: 3761205 (1973-09-01), Cronstedt
patent: 4152092 (1979-05-01), Swearingen
patent: 4308718 (1982-01-01), Mowill
Chang, Paul K. Control of Flow Separation N.Y., McGraw Hill, 1976, pp. 6, 7 & 159.

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