Turbine anti-rotating stall schedule

Details Turbine anti-rotating stall schedule Turbine anti-rotating stall schedule

2011-07-05

2011-07-05

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S119000, C415S145000, C415S160000, C415S162000, C060S772000, C060S779000, C060S782000, C060S795000

Reexamination Certificate

active

07972105

ABSTRACT:
A method of starting up a turbine with a compressor have an inlet guide vane, a number of bleed valves, and a number of blades so as to limit the duration in a rotating stall window. The method may include starting rotation of the blades, increasing the speed of the rotation of the blades, closing one or more bleed valves so as to shift the rotating stall window to a higher rotational speed, partially opening the inlet guide vane to a position outside the rotating stall window, and opening the bleed valves while partially closing the inlet guide vane such that the number of blades pass through the rotating stall window.

REFERENCES:
patent: 4428194 (1984-01-01), Stokes et al.
patent: 4586870 (1986-05-01), Hohlweg et al.
patent: 6328526 (2001-12-01), Seki et al.
patent: 6793456 (2004-09-01), Kotani et al.
patent: 2007/0031238 (2007-02-01), Fujii et al.

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