Adjustable flow turbine nozzle

Details Adjustable flow turbine nozzle Adjustable flow turbine nozzle

2007-01-23

2007-01-23

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

C415S202000

Reexamination Certificate

active

10919662

ABSTRACT:
A multiple-passage turbine nozzle with desired predetermined flow properties may be provided with an adjustment member in one or more of its passages to limit the flow therethrough. Turbine nozzle flow is an important performance characteristic that may be difficult to control by conventional drilling or machining manufacturing methods. The adjustment member may protrude into a nozzle passage, thereby reducing airflow through the nozzle passage. The amount of protrusion is variable and is selected to provide a desired partial or total occlusion of an associated passage at the time of manufacture of the turbine nozzle to compensate for variations produced by the conventional manufacturing techniques. The turbine nozzle according to the present invention provides simple and convenient calibrated adjustment of the predetermined flow that may be allowed to pass through a turbine nozzle onto a turbine wheel of a turbo machine.

REFERENCES:
patent: 1473690 (1923-11-01), Wolner
patent: 2889117 (1959-06-01), Wimpress
patent: 4378960 (1983-04-01), Lenz
patent: 4535592 (1985-08-01), Zinsmeyer
patent: 4579507 (1986-04-01), Corrigan et al.
patent: 4586336 (1986-05-01), Hörler
patent: 4973223 (1990-11-01), Franklin
patent: 5683225 (1997-11-01), Orlando et al.
patent: 6058715 (2000-05-01), Strang et al.
patent: 6402465 (2002-06-01), Maier
patent: 6652224 (2003-11-01), Mulloy et al.

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