Device for controlling variable-pitch vanes in a turbomachine

Details Device for controlling variable-pitch vanes in a turbomachine Device for controlling variable-pitch vanes in a turbomachine

2006-02-28

2006-02-28

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

Reexamination Certificate

active

07004723

ABSTRACT:
A device for controlling variable-pitch vanes in a turbomachine comprises links connecting the radial pivots of the vanes to radial fingers carried by semicircular elements and bridges of a control ring, the links being mounted in ball-and-socket manner on the radial fingers which are fixed to the control ring. This form of mounting enables all the vanes associated with the control ring to be set to the same angular pitch.

REFERENCES:
patent: 3685920 (1972-08-01), Burge
patent: 4773821 (1988-09-01), Gonthier et al.
patent: 5601401 (1997-02-01), Matheny et al.

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