Unlock instant, AI-driven research and patent intelligence for your innovation.

Angle variable vane, turbine comprising the vane and compressor thereof

A turbine, variable pitch technology, applied in the direction of the support element of the blade, machine/engine, mechanical equipment, etc.

Inactive Publication Date: 2007-07-11
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the blades need to be replaced after thousands of hours of operation, which is unacceptable in terms of cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Angle variable vane, turbine comprising the vane and compressor thereof
  • Angle variable vane, turbine comprising the vane and compressor thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Referring to Fig. 1, the variable-pitch blades 2 of the high-pressure compressor of the turbine are distributed along the annular stationary blade stage arranged between each moving blade (not shown), and the moving blade is fixed on the pulley rotor (not shown) superior.

[0019] The shape of each variable-pitch blade 2 of the annular stage is an airfoil shape 4, and its radially outer end (or blade top) ends at the control shaft 6 (or top shaft), and its radially inner end (or blade root) is connected to Guide shaft 8 (or bottom shaft) is connected.

[0020] The control shaft 6 passes through the stator casing 10 of the turbomachine and cooperates with means for controlling the pitch angle of the blades. To this end, the top end 12 of the control shaft 6 engages with one end of a control link 14 , the other end of which cooperates with a control ring 16 .

[0021] The link 14 and the control ring 16 form the control means for the pitch angle of the blades. Turning ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a variable-pitch vane for a turbomachine compressor, the vane including a bushing mounted to rotate about a guide pivot of the vane for mounting in a casing of the turbomachine, the pivoting contact between the bushing and the guide pivot being of the nickel-graphite and titanium type.

Description

technical field [0001] This invention relates to the general field of variable pitch blades. One specific application is in the aerospace field, especially for controlling the pitch angle of inlet guide vanes in turbomachine compressors. Background technique [0002] In a turbomachine, a high pressure compressor usually consists of many stages with variable pitch blades to facilitate changing the flow characteristics of the gas according to the turbine operating speed. [0003] The variable-pitch blades in a given stage have a control shaft at the top and a guide shaft at the root. The control shaft passes through the stator casing of the turbine and cooperates with the control member for the blade pitch angle, while the guide shaft is installed in the turbine casing. The sleeve is embedded in the ring recess and can be rotated. The pitch angle of the blades in the stage can be varied by action on the control member. [0004] The variable-pitch blade is positioned by the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/46F04D29/56F04D29/02B22F5/12B22F3/10C23C4/04
CPCF05C2201/0412F05C2251/14F01D17/162F05D2300/509F05D2300/133C23C4/04F01D5/3092F04D29/563F16C2360/23
Inventor 莱奥尼德·莱斯内维斯基亚历山大·特劳师约尔·维格尼奥
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A