Title:
ラビリンスシールパッキングリングの方法及び装置
Document Type and Number:
Japanese Patent JP5830247
Kind Code:
B2
Abstract:
A seal assembly for a turbomachine may include at least one arcuate plate coupled to an interior surface of a stationary housing; a circumferentially-segmented packing ring disposed intermediate to a rotor and the plate; a plurality of arcuate teeth disposed intermediate to the ring and the rotor, wherein a clearance of each tooth decreases progressively going from an upstream side of the turbomachinery to a downstream side; wherein the progressive decrease in the clearances of the teeth creates a passive feedback, such that as a tip clearance decreases, outward radial forces cause the packing ring to move away from the rotor and as the tip clearance increases, inward radial forces cause the packing ring to move toward the rotor; and a biasing member disposed intermediate to the arcuate plate and the ring and coupled to both.
Inventors:
Rishikesh Vishvas Deo
Vinayak Roy
Vinayak Roy
Application Number:
JP2011006626A
Publication Date:
December 09, 2015
Filing Date:
January 17, 2011
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F16J15/447; F01D11/02; F01D25/00; F01D25/24
Domestic Patent References:
| JP2002536613A | ||||
| JP57176960U | ||||
| JP6173609A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa