Title:
SYSTEM AND METHOD FOR THRUST BEARING ACTUATION TO ACTIVELY CONTROL CLEARANCE IN TURBO MACHINE
Document Type and Number:
Japanese Patent JP2015165133
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an actuation system to control the clearance in a turbomachine including an axially displaceable thrust bearing.SOLUTION: The axially displaceable thrust bearing is configured to axially displace a rotating component relative to a stationary component to control the clearance between the stationary component and the rotating component. The system includes a plurality of actuators coupled to the axially displaceable thrust bearing and configured to actuate the axially displaceable thrust bearing to control the clearance. The plurality of actuators are configured to deactivate a diametrically opposed actuator in the event of an actuator failure to maintain zero moment. In a topography network, each diametrically opposed actuator pair is coupled to a single control line. In an alternate topography network, alternating actuators are coupled to a single control line.
Inventors:
DEEPAK TRIVEDI
TURNQUIST NORMAN ARNOLD
ZHENG XIAOQING
MURAT INALPOLAT
TURNQUIST NORMAN ARNOLD
ZHENG XIAOQING
MURAT INALPOLAT
Application Number:
JP2015032392A
Publication Date:
September 17, 2015
Filing Date:
February 23, 2015
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
F01D11/22; F01D25/16; F02C7/06; F02C7/28; F04D29/052; F04D29/056; F16C25/00
Domestic Patent References:
| JP2002529646A | 2002-09-10 | |||
| JP2001207324A | 2001-08-03 | |||
| JP2010270755A | 2010-12-02 | |||
| JP2006189048A | 2006-07-20 |
Foreign References:
| US20080247865A1 | 2008-10-09 | |||
| EP0816697A2 | 1998-01-07 | |||
| US20120063884A1 | 2012-03-15 | |||
| US20080063513A1 | 2008-03-13 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka