| 摘要 |
A variable stator vane arrangement includes a casing, a plurality of stator vanes, at least one control ring, a plurality of connecting rods and a crankshaft. The stator vanes are circumferentially spaced apart in the casing and the plurality of stator vanes are rotatably mounted in the casing. Each control ring is rotatably mounted on the casing and each stator vane is connected to an associated control ring. The crankshaft, rotatably mounted on the casing, is drivingly connected to each control ring and has an axis and a plurality of clevises. Each connecting rod connects one of the clevises on the crankshaft to a respective one of the control rings. At least one clevis is adjustably secured to the crankshaft by an adjusting mechanism and the adjusting mechanism is used to select the radial and/or angular position of at least one clevis relative to the axis of the crankshaft. |
| 主权项 |
1. A variable stator vane arrangement comprising a casing, a plurality of stages of variable stator vanes, a plurality of connecting rods and a crankshaft,
each stage of variable stator vanes comprises a plurality of stator vanes, a control ring and a plurality of operating levers, each operating lever connects the control ring to a respective one of the stator vanes, the stator vanes in each stage of variable stator vanes are circumferentially spaced apart in the casing, the stator vanes in each stage of variable stator vanes are rotatably mounted in the casing, the crankshaft is rotatably mounted on the casing, the crankshaft has an axis and a plurality of clevises, each connecting rod connects one of the clevises on the crankshaft to a respective one of the control rings, wherein at least one clevis is movably mounted on the crankshaft such that it is movable radially relative to the axis of the crankshaft and/or such that it is movable angularly relative to the axis of the crankshaft, the at least one clevis is adjustably secured to the crankshaft by an adjusting mechanism, the adjusting mechanism is arranged to select the radial position of the at least one clevis relative to the axis of the crankshaft and/or the angular position of the at least one clevis relative to the axis of the crankshaft, the adjusting mechanism including a releasable lock to lock the at least one clevis in a selected radial position and/or a selected radial position. |
