Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner
Reexamination Certificate
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.
Bouron Alain
Chatel Alain
Marois Fabrice
Raulin Dominique
Nguyen Ninh H.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Snecma Moteurs
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