EP 1222399 B1 20030813 - METHOD AND DEVICE FOR COOLING THE FLOW IN THE RADIAL GAPS FORMED BETWEEN ROTORS AND STATORS OF TURBINE-TYPE MACHINES
Title (en)
METHOD AND DEVICE FOR COOLING THE FLOW IN THE RADIAL GAPS FORMED BETWEEN ROTORS AND STATORS OF TURBINE-TYPE MACHINES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KÜHLUNG DER STRÖMUNG IN ZWISCHEN ROTOREN UND STATOREN VON TURBOMASCHINEN AUSGEBILDETEN RADIALSPALTEN
Title (fr)
PROCEDE ET DISPOSITIF DE REFROIDISSEMENT DE L'ECOULEMENT DANS LES FENTES RADIALES FORMEES ENTRE LES ROTORS ET LES STATORS DE TURBOMACHINES
Publication
Application
Priority
CH 9900496 W 19991020
Abstract (en)
[origin: WO0129425A1] The aim of the invention is to provide a method for cooling the flow in the radial gaps formed between rotors and stators of turbine-type machines which is improved in terms of the cooling effect; and a simple, economical and robust device for carrying out this method. To this end, the invention provides that a stator part (20) that is adjacent to the radial gap (24) is subjected to the effects of a first cooling fluid (29) and that a second, gaseous cooling fluid (41) is guided into the radial gap (24). At least one recess (26) is configured inside the stator part (20) that is adjacent to the radial gap (24) or at least one cavity is provided on the stator part (20) to this end. The recess (26) or cavity is connected to a delivery line (27) and to a discharge line (28) for the first cooling fluid (29). At least one delivery channel (40) and a discharge device (42) for the second cooling fluid (41) are also located on the radial gap (24).
IPC 1-7
IPC 8 full level
F02B 39/00 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP KR)
F04D 29/284 (2013.01 - EP); F04D 29/58 (2013.01 - KR); F04D 29/584 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0129425 A1 20010426; AU 6075799 A 20010430; CN 1258648 C 20060607; CN 1375041 A 20021016; DE 59906615 D1 20030918; EP 1222399 A1 20020717; EP 1222399 B1 20030813; JP 2003515690 A 20030507; KR 100637643 B1 20061023; KR 20020041437 A 20020601
DOCDB simple family (application)
CH 9900496 W 19991020; AU 6075799 A 19991020; CN 99816961 A 19991020; DE 59906615 T 19991020; EP 99947180 A 19991020; JP 2001531986 A 19991020; KR 20027003417 A 20020314