公开(公告)号：US20180355745A1

公开(公告)日：2018-12-13

申请号：US15974821

申请日：2018-05-09

Applicant: General Electric Company

Inventor： Paul MATHEW ,  Mohandas NAYAK ,  Krishnendu SAHA ,  Deoras PRABHUDHARWADKAR

IPC: F01D11/12 ,  F01D11/00 ,  B22F7/08 ,  B22F1/00

CPC classification number: F01D11/125 ,  B22F1/0059 ,  B22F7/08 ,  B22F2301/15 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2999/00 ,  F01D11/001 ,  F01D11/127 ,  F05D2220/32 ,  F05D2230/21 ,  F05D2230/40 ,  F05D2300/224 ,  F05D2300/228 ,  F05D2300/43 ,  B22F7/04 ,  B22F7/002 ,  B22F2007/066 ,  B22F3/10

Abstract: A filled abradable seal component, an associated method of manufacturing, and a turbomachine including the filled abradable seal component are disclosed. The method includes positioning the abradable seal component including a plurality of honeycomb cells, applying a filler material on the abradable seal component to fill the plurality of honeycomb cells, and curing the filler material at a temperature below 250 degrees Celsius to produce the filled abradable seal component. The filler material includes an abradable material, a binder material, and a fluid catalyst. The abradable material includes at least one of nickel chromium aluminum-bentonite, cobalt nickel chromium aluminum yttrium-polyester, cobalt nickel chromium aluminum yttrium-boron nitride, aluminum silicon-bentonite, aluminum bronze-polyester, nickel graphite, or aluminum silicon-boron nitride. The binder material includes at least one of aluminum, nickel-aluminum, aluminum thiophosphate, or aluminum thiosulfate. The fluid catalyst includes a solvent having hydroxyl groups.

公开(公告)号：US20180087669A1

公开(公告)日：2018-03-29

申请号：US15696489

申请日：2017-09-06

Applicant: General Electric Company

Inventor： Krishnendu SAHA ,  Deoras PRABHUDHARWADKAR ,  Ashok GOPINATH

IPC: F16J15/447 ,  F16J15/44 ,  F01D11/02 ,  F01D11/10 ,  F01D11/00

Abstract: Labyrinth seal system includes stationary component and rotatable component, where one of the stationary and rotatable components includes teeth. The labyrinth seal system further includes abradable component coupled to surface of other of the stationary and rotatable components and disposed facing the teeth. The abradable component includes a plurality of honeycomb cells disposed adjacent to each other along axial direction and circumferential direction. Each honeycomb cell includes a plurality of radial sidewalls, where each radial sidewall includes first portion and second portion. The first portion is coupled to the surface and the second portion extends from the first portion towards clearance defined between the stationary and rotatable components. The second portion is bent relative to radial axis of the labyrinth seal system.