Guide Vane Adjustment Device And Turbomachine

• US 20180100407A1
• Filed: 04/14/2016
• Published: 04/12/2018
• Est. Priority Date: 04/15/2015
• Status: Active Grant

• Current Assignee: MAN Energy Solutions SE (Volkswagen AG)
• Original Assignee: Man Diesel Europe
• Inventors: LEOPOLD, Lennart
• Granted Patent: US 10,774,673 B2
• Time in Patent Office: Days
• CPC Class Codes: F01D 17/00 Regulating or controlling by varying flow for reversing F01D1/30; by varying rotor-blade position F01D7/00; specially for starting F01D19/00; shutting-down F01D21/00; regulating or controlling in general G05 ; specially adapted for hand-held tools or the like F01D15/06
• CPC Class Codes: F01D 17/162 for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line F01D17/167 takes precedence
• CPC Class Codes: F01D 17/167 of vanes moving in translation
• CPC Class Codes: F01D 5/02 Blade-carrying members, e.g. rotors rotors of non-bladed type F01D1/34; stators F01D9/00 ; selecting particular materials F01D5/28
• CPC Class Codes: F01D 9/041 using blades F01D5/148 takes precedence
• CPC Class Codes: F04D 29/563 specially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/566 specially adapted for liquid pumps
• CPC Class Codes: F05D 2260/50 Kinematic linkage, i.e. transmission of position

Abstract

Guide vane adjusting device for a flow machine to rotate guide vanes, with a driveshaft, and a control ring that transmits rotation of the driveshaft to rotate the guide vanes. The driveshaft is directly coupled with one of the guide vanes to be directly rotatable by the driveshaft without the intermediary of the control ring. The directly driven guide vane is articulately coupled with the control ring via a transmission lever. The other guide vanes are indirectly rotatable with the intermediary of the control ring. The control ring is displaceable in circumferential and axial direction such that forces at coupling points between the control ring and the transmission levers coupled with the control ring run perpendicular to the transmission levers.

Claims

1-10. -10. (canceled)

11. A guide vane adjusting device for a flow machine configured to rotate a plurality of guide vanes arranged to form a guide vane ring around guide vane axes of the plurality of guide vanes of the guide vane ring, which guide vane axes extend in radial direction of a rotor of the flow machine, comprising:

a driveshaft configured to be coupled to and driven by a drive moto;

a control ring that transmits a rotation of the driveshaft to rotate the plurality of guide vanes of the guide vane ring, wherein the driveshaft is directly coupled to at least one of the plurality of guide vanes of the guide vane ring such that this guide vane of the guide vane ring is directly rotatable by the driveshaft without the control ring as an intermediary;

a transmission lever comprising multiple parts and configured to couple the control ring in an articulated manner to the driveshaft and the guide vane that is directly drivable by the driveshaft, a first segment of the multiple-part transmission lever is rigidly coupled with one of the driveshaft and the at least one guide vane that is directly drivable by the driveshaft, and a second segment of the multiple-part transmission lever is coupled in an articulated manner with the control ring, wherein the first segment of the multiple-part transmission lever is coupled in an articulated manner with the second segment of the multiple-part transmission lever,

wherein the driveshaft is indirectly coupled with the other guide vanes of the guide vane ring such that the other guide vanes of the guide vane ring are indirectly rotatable with the intermediary of the control ring; and

respective further transmission levers configured to couple the control ring to the plurality of guide vanes that are indirectly drivable by the driveshaft in an articulated manner; and

wherein the control ring is displaceable in circumferential direction and in axial direction such that forces at coupling points between the control ring and the transmission levers that are coupled with the control ring in an articulated manner run perpendicular to the transmission levers.

12. The guide vane adjusting device according to claim 11, further comprising:

two joint bearings formed between the first segment of the multiple-part transmission lever and the second segment of the multiple-part transmission lever; and

an individual joint bearing is formed between the second segment of the multiple-part transmission lever and the control ring.

13. The guide vane adjusting device according to one of claim 11, wherein the respective further transmission levers are each one-part, elastically deformable transmission levers.

14. The guide vane adjusting device according to claim 13, wherein a joint bearing is formed between each of the one-part transmission levers and the control ring, and each of the one-part transmission levers are rigidly coupled with the respective guide vane.

15. The guide vane adjusting device according to claim 11, wherein the respective further transmission levers are each multiple-part transmission levers, wherein a first segment of each of these multiple-part transmission levers is rigidly coupled with the respective guide vane, and wherein a second segment of each of these multiple-part transmission levers is coupled in an articulated manner with the control ring.

16. The guide vane adjusting device according to claim 15, wherein the first segment of each of these multiple-part transmission levers is coupled in an articulated manner with the second segment of the respective multiple-part transmission lever.

17. The guide vane adjusting device according to claim 16, further comprising:

two joint bearings formed between the first segment of the respective multiple-part transmission lever and the second segment of the respective multiple-part transmission lever, and

an individual joint bearing formed between the second segment of the respective multiple-part transmission lever and the control ring.

18. A flow machine comprising:

a rotor having guide blades;

a stator having guide vanes, wherein the guide vanes form at least one guide vane ring;

a guide vane adjusting device configured to adjust the guide vanes of the at least one guide vane ring comprising;

a driveshaft configured to be coupled to and driven by a drive moto;

a control ring that transmits a rotation of the driveshaft to rotate the plurality of guide vanes of the guide vane ring, wherein the driveshaft is directly coupled to at least one of the plurality of guide vanes of the guide vane ring such that this guide vane of the guide vane ring is directly rotatable by the driveshaft without the control ring as an intermediary;

a transmission lever comprising multiple parts and configured to couple the control ring in an articulated manner to the driveshaft and the guide vane that is directly drivable by the driveshaft, a first segment of the multiple-part transmission lever is rigidly coupled with one of the driveshaft and the at least one guide vane that is directly drivable by the driveshaft, and a second segment of the multiple-part transmission lever is coupled in an articulated manner with the control ring, wherein the first segment of the multiple-part transmission lever is coupled in an articulated manner with the second segment of the multiple-part transmission lever,

wherein the driveshaft is indirectly coupled with the other guide vanes of the guide vane ring such that the other guide vanes of the guide vane ring are indirectly rotatable with the intermediary of the control ring; and

respective further transmission levers configured to couple the control ring to the plurality of guide vanes that are indirectly drivable by the driveshaft in an articulated manner; and

wherein the control ring is displaceable in circumferential direction and in axial direction such that forces at coupling points between the control ring and the transmission levers that are coupled with the control ring in an articulated manner run perpendicular to the transmission levers.