Counter swirl shear mixer

Details Counter swirl shear mixer Counter swirl shear mixer

2007-07-03

2007-07-03

Casaregola, L. J. (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S737000, C060S760000

Reexamination Certificate

active

10905907

ABSTRACT:
The present invention provides a mixer for a gas turbine combustor comprising a plurality of generally annular walls interconnected by at least a plurality of first vanes. The vanes are oriented at angles, so as to create a shear layer between the two flows. A fuel is then injected so as to penetrate the shear layer for enhanced mixing. The mixture passes through an extended mixing passage to provide sufficient time and distance for improved mixedness prior to ignition. Multiple embodiments of the present invention are disclosed comprising a plurality of first vanes and a plurality of first and second vanes.

REFERENCES:
patent: 5165241 (1992-11-01), Joshi et al.
patent: 5515680 (1996-05-01), Fujimura et al.
patent: 6209325 (2001-04-01), Alkabie
patent: 6609376 (2003-08-01), Rokke
patent: 2004/0226300 (2004-11-01), Stuttaford et al.
patent: 2005/0016177 (2005-01-01), Modi et al.

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