Global patent index - EP 1026367 A1

EP 1026367 A1 2000-08-09 - Turbomachine rotor blade tip sealing

Title (en)

Turbomachine rotor blade tip sealing

Title (de)

Rotorschaufelspitzenabdichtung einer Turbomaschine

Title (fr)

Système d'étanchéité pour les extrémités d'aubes mobiles de turbomachine

Publication

EP 1026367 A1 (DE)

Application

EP 99101655 A

Priority

EP 99101655 A

Abstract (en)

A turbine, having a deformable sealing material (19) in the gap between a rotating blade tip (14) and a stationary component (15), is new. An Independent claim is also included for a method of sealing a gap between a rotating blade tip (14) and a stationary component (15) of a turbine, in which a sealing material (19) in the gap deforms during blade movement so that any space left in the gap is insignificant.

Abstract (de)

Die Erfindung betrifft eine Strömungsmaschine (1), insbesondere eine Gasturbine, bei der in einem Spalt (17) zwischen Laufschaufeln (13) und einem diesen gegenüber liegenden ruhenden Bauteil (15) ein verformbares Dichtmaterial (19) mit einer vergleichsweise hohen Duktilität angeordnet ist, so daß das Dichtmaterial (19) bei einem Anstreifen der Laufschaufeln (13) am ruhenden Bauteil (15) verformt wird. <IMAGE>

IPC 1-7 (main, further and additional classification)

F01D 11/12; F01D 5/20

IPC 8 full level (invention and additional information)

F01D 5/20 (2006.01); F01D 11/12 (2006.01)

CPC (invention and additional information)

F01D 5/20 (2013.01); F01D 11/127 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1026367 A1 20000809

INPADOC legal status

2002-01-03 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

- Ref Legal Event Code: 8566

2001-11-21 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010210

2001-04-25 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-08-09 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI