DEVICE FOR ALIGNING CENTER OF REVOLUTION VANE CONTROL SYNCHRONIZING RING FOR TURBO-ENGINE

Title:

DEVICE FOR ALIGNING CENTER OF REVOLUTION VANE CONTROL SYNCHRONIZING RING FOR TURBO-ENGINE

Document Type and Number:

Japanese Patent JP2007211775

Kind Code:

A

Abstract:

To adjust concentricity of a control ring of a simple structure and having high reliability in all stages of operation of a turbo-engine.

This device is provided with the control ring 26 provided with a plurality of screw holes 36 of which center is aligned to a longitudinal shaft X-X of the turbo-engine and which extends in a radial direction, and a plurality of pad holders 32 provided with a screw rod 34 to be screwed in the screw hole 36. Each pad holder 32 retains a pad 30 touching a cylindrical shell 28 concentric with the ring at an inner end part. The control ring 26 is provided with a slot 38 extending a tangential direction, and each slot 38 communicates to the screw hole 36. Means 40, 42a, 42b gripping each slot 38 in a longitudinal direction is provided to lock the pad holder 32 at an appropriate position.

Inventors:

BROMANN ALAIN

Application Number:

JP2007026386A

Publication Date:

August 23, 2007

Filing Date:

February 06, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SNECMA

International Classes:

F04D29/56; F01D17/16; F02C7/00; F02C7/042; F02C9/22

Domestic Patent References:

JP2003139121A	2003-05-14
JP2002081416A	2002-03-22

Foreign References:

US5387080A

1995-02-07

Attorney, Agent or Firm:

Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura

Previous Patent: CROSSING WALL FOR COMBUSTION CHAMBER PROVIDED WITH MULTIPLE HOLES

Next Patent: METHOD AND DEVICE FOR OPERATING INTERNAL COMBUSTION ENGINE