Guide Vane Adjusting Device And Turbomachine
2 Assignments
0 Petitions
Accused Products
Abstract
A guide vane adjusting device for rotating guide vanes in a guide vane assembly having a driveshaft and a control ring that transmits a driveshaft rotation of the driveshaft to rotate the guide vanes. Each guide vane has a front and a rear vane part, which can be rotatable relative to each other about a respective guide vane rotational axis. The driveshaft is directly coupled to one of the guide vanes such that the vane parts are directly rotated without the interposition of the control ring. The driveshaft is indirectly coupled to the other guide vanes such that the guide vane parts are rotated indirectly with the interposition of the control ring. A respective drive lever acts on a bearing pin of the front vane part and a bearing pin of the rear vane part of the guide vane. The drive lever are coupled together via a respective coupling device.
18 Citations
22 Claims
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1-11. -11. (canceled)
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12. A guide vane adjusting device for a turbomachine, configured to rotate a plurality of guide vanes grouped into a guide vane ring about guide vane axes of rotation extending in radial direction of the guide vanes of the guide vane ring, each guide vane has a front vane part and a rear vane part, each of which can be rotated relative to one another about a common respective guide vane axis of rotation, comprising:
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a driveshaft configured to be coupled to and driven by a drive motor; a control ring that transmits a rotation of the driveshaft for rotating guide vanes of the guide vane ring to the plurality of guide vanes, wherein, the driveshaft is directly coupled to one of the guide vanes of the guide vane ring such that the vane parts of the one of the guide vanes of the guide vane ring is directly rotatable by the driveshaft without interposition of the control ring, wherein the driveshaft is indirectly coupled to the other guide vanes of the guide vane ring such that the vane parts of the other guide vanes of the guide vane ring are indirectly rotatable by the driveshaft with interposition of the control ring; a respective drive lever that act on a respective bearing pin of each front vane part and a respective bearing pin of each rear vane part of the guide vane; and a respective coupling device that couples the respective drive lever of each respective guide vane, wherein respective guide vane are synchronously rotatable. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A turbomachine comprising:
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a rotor comprising moving blades; a stator comprising guide vanes, wherein the guide vanes form at least one guide vane ring and wherein the guide vanes of at least one guide vane ring are adjustable by a guide vane adjusting device, wherein the guide vane adjusting device comprises; a driveshaft configured to be coupled to and driven by a drive motor; a control ring that transmits a rotation of the driveshaft for rotating guide vanes of the guide vane ring to the plurality of guide vanes, wherein, the driveshaft is directly coupled to one of the guide vanes of the guide vane ring such that the vane parts (of the one of the guide vanes of the guide vane ring is directly rotatable by the driveshaft without interposition of the control ring, wherein the driveshaft is indirectly coupled to the other guide vanes of the guide vane ring such that the vane parts of the other guide vanes of the guide vane ring are indirectly rotatable by the driveshaft with interposition of the control ring; a respective drive lever that act on a respective bearing pin of each front vane part and a respective bearing pin of each rear vane part of the guide vane; and a respective coupling device that couples the respective drive lever of each respective guide vane, wherein respective guide vane are synchronously rotatable.
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Specification