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A variable guide vane arrangement includes a control ring located in a fixed axial position and an operating lever having a first end and a second end which is secured to the control ring with the first end positioned between two flanges and secured thereto by a pin; the second end is connected to a

A variable guide vane arrangement includes a control ring located in a fixed axial position and an operating lever having a first end and a second end which is secured to the control ring with the first end positioned between two flanges and secured thereto by a pin; the second end is connected to a portion which fits into a bore and is slidable with respect thereto to vary the length of the operating lever.

대표청구항 ▼

A variable stator vane arrangement for an axial flow compressor comprising a plurality of circumferentially arranged radially extending stator vanes mounted for rotation about their longitudinal axes in a stator structure, a control ring surrounding the stator structure, a plurality of circumferenti

A variable stator vane arrangement for an axial flow compressor comprising a plurality of circumferentially arranged radially extending stator vanes mounted for rotation about their longitudinal axes in a stator structure, a control ring surrounding the stator structure, a plurality of circumferentially arranged operating levers, each operating lever extending from the control ring to a respective stator vane, the control ring being movable between a first position in which the control ring is coaxial with the compressor and a second position in which the axis of the control ring is displaced transversely with respect to the axis of the compressor, the control ring being movable from the first position to the second position such that the stator vanes in a first circumferentially extending zone of the compressor are rotated in a first direction whereby the first zone operates at a relatively higher pressure ratio and the stator vanes in a second diametrically opposite circumferentially extending zone of the compressor are rotated in the opposite direction whereby the second zone operates at a relatively lower pressure ratio; each operating lever comprising two parts, one part being slidably mounted in the outer to allow for variation in effective length of each operating lever.