Suction vent at recirculation zone of combustor

Details Suction vent at recirculation zone of combustor Suction vent at recirculation zone of combustor

1975-05-30

1977-10-04

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

Combustion products generator

60 3974R, 60261, F02K 300, F02K 310

Patent

active

040516709

ABSTRACT:
A centrally disposed vent is positioned adjacent the low pressure region of recirculating gases in a combustor or augmentor of the type used in gas turbine engines, allowing gas to be abstracted from the core of the recirculating region, thereby causing a reduction in static pressure, and a strengthening and stabilizing of the recirculating flow pattern. Combustion occurring in the recirculating gas is intensified by virtue of higher mixing rates, and flame stability is enhanced by virtue of increased stability of the recirculating flow pattern. The vent is shown employed in a premixing tube device for use in gas turbine engine main combustors. Alternative main combustor and augmentor combustor configurations are shown.

REFERENCES:
patent: 2224544 (1940-12-01), Keller
patent: 2517399 (1950-08-01), McCollum
patent: 2799991 (1957-07-01), Conrad
patent: 2941361 (1960-06-01), Spalding
patent: 3439496 (1969-04-01), Beuers
patent: 3618318 (1971-11-01), Bryce
patent: 3631675 (1972-01-01), Keiter et al.
patent: 3817690 (1974-06-01), Bryce et al.
patent: 3910035 (1975-10-01), Juhasz et al.
patent: 3927958 (1975-12-01), Quinn

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