Title:
ターボ機械内のクリアランスを能動的に制御するためのスラスト軸受作動のためのシステム及び方法
Document Type and Number:
Japanese Patent JP6504849
Kind Code:
B2
Abstract:
An actuation system to control clearance in a turbomachine including a shaft bearing including at least one axially displaceable thrust bearing. The axially displaceable thrust bearing configured to axially displace a rotating component relative to a stationary component to control the clearance therebetween. The system further including a plurality of actuators coupled to the at least one axially displaceable thrust bearing and configured to actuate the at least one axially displaceable thrust bearing to control the clearance. The plurality of actuators is 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. In addition, a method of actuating a thrust bearing to control clearance in a turbomachine is disclosed.
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Inventors:
Deepak Trivedy
Norman Arnold Turnquist
Shaoxin Chen
Mura Inarupora
Norman Arnold Turnquist
Shaoxin Chen
Mura Inarupora
Application Number:
JP2015032392A
Publication Date:
April 24, 2019
Filing Date:
February 23, 2015
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F01D11/22; F01D25/16; F02C7/06; F02C7/28; F04D29/052; F04D29/056; F16C25/00
Domestic Patent References:
| JP2002529646A | ||||
| JP2001207324A | ||||
| JP2010270755A | ||||
| JP2006189048A |
Foreign References:
| US20080247865 | ||||
| EP0816697A2 | ||||
| US20120063884 | ||||
| US20080063513 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka