US 6,334,617 B1 · Composite abradable material

Abstract

An abradable material for use at moderate temperatures which is particularly suited for use in the compressor sections of gas turbine engines. Abradable seals of the invention comprise an abradable silicone polymer matrix which contains a dispersion of hard abradable organic filler particles.

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Facts

Application

09/471,758Filed 2 Mar 2000

Granted

1 Jan 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

F16J 15/445
Free-space packings: with means for adjusting the clearance
C09K 3/1018
Characterised by the chemical nature of one of its constituents: macromolecular compounds having one or more carbon-to-silicon linkages
C23C 30/00
Coating with metallic material characterised only by the composition of the metallic
F01D 11/12
For sealing space between rotor blade tips and stator: using a rubstrip, e.g. erodible. deformable or resiliently-biased part

Composite abradable material

Life of this patent

Abstract

Claims0

Composite abradable material

Life of this patent

Abstract

Claims0