Global Patent Index - EP 1163426 A1

EP 1163426 A1 2001-12-19 - TURBOMACHINE BLADE

Title (en)

TURBOMACHINE BLADE

Title (de)

TURBOMASCHINENSCHAUFEL

Title (fr)

AUBE DE TURBOMACHINE

Publication

EP 1163426 A1 (DE)

Application

EP 00908907 A

Priority

  • CH 0000171 W
  • DE 19913265 A

Abstract (en)

[origin: DE19913265A1] The invention has the aim of improving the efficiency of a turbomachine blade fitted with a reinforced hole for receiving a damping element. To this end, the raised end faces (12, 13) of the edge area (11) of the blade (4), which is reinforced in the direction of the hole (10), is configured with an acute angle alpha that is open relative to the input edge (5) of the blade and/or with an acute angle beta that is open relative to the tip (9) of the blade.

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

F01D 5/22; F01D 5/14; F01D 5/24

IPC 8 full level (invention and additional information)

F01D 5/14 (2006.01); F01D 5/22 (2006.01); F01D 5/24 (2006.01)

CPC (invention and additional information)

F01D 5/22 (2013.01); F01D 5/147 (2013.01); F01D 5/24 (2013.01); Y10S 416/50 (2013.01)

Citation (search report)

See references of WO 0057030A1

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

DE 19913265 A1 20000928; CN 1171005 C 20041013; CN 1359445 A 20020717; EP 1163426 A1 20011219; EP 1163426 B1 20030618; JP 2002540335 A 20021126; JP 4531268 B2 20100825; TW 440654 B 20010616; US 6520741 B1 20030218; WO 0057030 A1 20000928

INPADOC legal status


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2004-06-09 [26N] NO OPPOSITION FILED

- Effective date: 20040319

2004-03-12 [ET] FR: TRANSLATION FILED

2004-01-28 [REG IE FD4D] EUROPEAN PATENTS DESIGNATING IRELAND TREATED AS ALWAYS HAVING BEEN VOID

2003-11-12 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20031017

2003-07-24 [REF] CORRESPONDS TO:

- Document: DE 50002590 P 20030724

2003-07-23 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

- Free text: GERMAN

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): DE FR GB

2003-06-18 [REG GB FG4D] EUROPEAN PATENT GRANTED

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2001-12-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010804

2001-12-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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