Global Patent Index - EP 0918139 A3

EP 0918139 A3 2000-07-26 - Friction Damper

Title (en)

Friction Damper

Title (de)

Reibungsdämpfer

Title (fr)

Amortisseur à friction

Publication

EP 0918139 A3 (EN)

Application

EP 98309280 A

Priority

GB 9724731 A

Abstract (en)

[origin: EP0918139A2] A blade to blade vibration damper 30,34 for a gas turbine engine includes a first friction surface 28 for contacting a first face 22 associated with a blade of the gas turbine and a second friction surface 28 for contacting a second face 22 associated with an adjacent blade of the gas turbine. The damper is formed in at least two parts such that the first friction surface can move relative to the second friction surface. Relative radial movement of the two friction surfaces can take place thereby allowing the friction damper to respond to relative radial movement of adjacent turbine blades, while maintaining the first and second friction surfaces in contact with the first and second faces respectively. <IMAGE>

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

F01D 5/22

IPC 8 full level (invention and additional information)

F01D 5/26 (2006.01)

CPC (invention and additional information)

F01D 5/26 (2013.01)

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 0918139 A2 19990526; EP 0918139 A3 20000726; GB 9724731 D0 19980121

INPADOC legal status


2001-11-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010129

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

- Free text: DE ES FR GB IT

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

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

2000-07-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

1999-05-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE ES FR GB IT

1999-05-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI