Device for controlling pivoting blades of a turbine engine

A technology for control devices and turbines, which is applied to parts of pumping devices for elastic fluids, mechanical equipment, engine components, etc., can solve problems such as positioning and centering restrictions, high stress on control devices, and device uncertainty, etc., to achieve Improvement of reliability, improvement of performance, effects that can be improved
CN103189602AActive Publication Date: 2013-07-03TURBOMECA SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TURBOMECA SA
Publication Date
2013-07-03

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Abstract

The invention relates to a device (10) for controlling pivoting blades of a turbine engine, including a plurality of pivoting blades (12) that are azimuthally distributed over at least 90 about the axis (A) of the turbine engine, said pivoting blades (12) being substantially radially oriented relative to the axis (A) of the turbine engine; and a control ring portion (16) for controlling the pivoting of the blades (12), each blade (12) being connected to the control ring portion (16) by a connecting rod (18, 19). The control ring portion (16) is supported about the axis (A) of the turbine engine by the set of connecting rods (18, 19), wherein at least two connecting rods (18) are connected to the ring portion by a ball-joint connection (20), and the other connecting rods (19) are connected to the ring portion by a sliding pivot connection (22).
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Description

technical field

[0001] The present invention relates to an apparatus for controlling the pivoting vanes of a turbomachine, and in particular, to an apparatus for controlling the pivoting vanes in a synchronized manner. Background technique

[0002] On turbines, it is known to employ one or more stages of stator blades to adjust the airflow and the direction of gas flow through the compression section according to the speed at which the turbine is operating. These stator blade stages include a plurality of blades (also known as variable pitch blades) that are pivotable about an axis connecting them to the stator so that their pitch angle can be modified according to the speed at which the turbine is operating.

[0003] Known means for controlling the pivoting vanes of a turbine generally comprise a plurality of pivotable vanes azimuthally distributed at an angle of at least 90° about the axis of the turbine, the pivotable vanes being oriented generally radially with respect t...

Claims

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