EP0166940B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Running-in coating for a turbomachine
Assignee: MTU Aero Engines AG
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Filing: 1985-05-22
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Granted: 1989-03-29
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Expires: 2005-05-22
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Hoffmüller
- 👤 Josef Eichner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 03:18
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/1103; B22F3/1112; B22F7/00; B22F7/002; F; F01; F01D; F01D11/00; F01D11/08; F01D11/12; F01D11/122; F01D11/125; B22F2998/00; B22F2998/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
Sintered running-in coating for a turbomachine, particularly a gas turbine, to reduce the radial clearance between rotor blades and housing, with spherical particles comprising a graphite core and a thin-gauge casing of nickel or a nickel alloy with chromium, aluminium or copper, characterised in that it consists solely of spherical particles which are sintered to form a coating of a densely closed surface.
Claim 2
Dependent Claim
63 words
Sintered running-in coating for a turbomachine, particularly a gas turbine, to reduce the radial clearance between rotor blades and housing, with spherical particles comprising a graphite core and a thin-gauge casing of nickel or a nickel alloy with chromium, aluminium or copper, characterised in that it consists solely of spherical particles which are sintered to form a coating of a densely closed surface.
Claim 3
Dependent Claim
19 words
A running-in coating according to claim 1, characterised in that rollers apply a secondary compaction to the sintered coating.
Claim 4
Dependent Claim
35 words
A running-in coating according to claim 1 or 2, characterised in that on the housing side it comprises a layer with a smooth outer surface which is cohesive in the manner of a carrier strip.
References Cited (Backward Citations)
DE2239840A1
Cited
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