Stator vane stage actuated by a rotary actuator ring moved...

Details Stator vane stage actuated by a rotary actuator ring moved... Stator vane stage actuated by a rotary actuator ring moved...

2008-07-01

2008-07-01

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

C415S160000

Reexamination Certificate

active

07393178

ABSTRACT:
A variable-pitch stator vane stage in which the vanes are moved by a rotary actuator ring driven by an electric motor. The outer actuator ring is connected by cranks to the vanes and is constrained to move in rotation only, centered on the axis of the turbomachine; the drive system includes two coaxial portions, an inner portion secured to the casing and an outer portion including the actuator ring, with an electrical drive unit being arranged between the two portions.

REFERENCES:
patent: 4130375 (1978-12-01), Korta
patent: 6129511 (2000-10-01), Salvage et al.
patent: 7004723 (2006-02-01), Raulin et al.
patent: 2004/0208742 (2004-10-01), Raulin et al.
patent: 0 527 593 (1993-02-01), None
patent: 1 246 176 (1960-10-01), None
patent: 2 688 827 (1993-09-01), None

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