Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TURBOMACHINE STATOR INCLUDING STAGE OF STATOR VANE ACTUATED BY AUTOMATICALLY ALIGNED ROTARY RING
Document Type and Number:
Japanese Patent JP2007332970
Kind Code:
A
Abstract:

To automatically align a ring of a turbomachine stator.

This stator comprises a casing 11 and one stage of variable-pitch stator vane 12 positioned on its outside and moved by an actuator ring 18 supported by the casing, and the ring is connected to the vane 12 by a link 16 in order to actuate the vane simultaneously, in which the casing includes a fixed coaxial rail 24 projecting from an outside surface of the casing, and three circumferentially spaced-apart groups 28 of wheels are constrained to move along the rail, and each group of the wheels is coupled to the ring 18 by a radial guidance arrangement, and each group 26 of the wheels comprises two wheels 34 engaged with the rail 24, and each wheel is mounted to rotate on a radially oriented pin 36 directly mounted on the ring 18.

COPYRIGHT: (C)2008,JPO&INPIT


More Like This:
Inventors:
BOURU MICHEL
Application Number:
JP2007158244A
Publication Date:
December 27, 2007
Filing Date:
June 15, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SNECMA
International Classes:
F04D29/56
Domestic Patent References:
JPS6121840U1986-02-08
JPH04303136A1992-10-27
JPH11303606A1999-11-02
JPS6121840U1986-02-08
JPH04303136A1992-10-27
JPH11303606A1999-11-02
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura