EP 0593797 B1 19960710 - Stabilizing device for the increase of the surge margin of a compressor
Title (en)
Stabilizing device for the increase of the surge margin of a compressor
Title (de)
Stabilisierungseinrichtung zur Kennfelderweiterung eines Verdichters
Title (fr)
Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur
Publication
Application
Priority
EP 92117780 A 19921017
Abstract (en)
[origin: EP0593797A1] In a compressor, the stabilising device for increasing the surge margin consists of a co-rotating ring (2) connected firmly to the moving blades (1), there being arranged between the ring (2) and the housing (3) of the compressor a recirculation duct (4) which, at its rear end in the flow direction, has an opening towards the impeller (5), only the usual narrow play existing between impeller (5) and wall of the housing (3) following the rear end of this opening. The front edge of the ring (2) in the flow direction can end flush with the inlet edges of the moving blades (1) or be axially displaced. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 27/02 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01)
CPC (source: EP KR US)
F04D 27/0215 (2013.01 - EP US); F04D 29/284 (2013.01 - EP US); F04D 29/40 (2013.01 - KR); F04D 29/4213 (2013.01 - EP US); F04D 29/685 (2013.01 - EP US); Y10S 415/914 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0593797 A1 19940427; EP 0593797 B1 19960710; CZ 215893 A3 19940518; CZ 283618 B6 19980513; DE 59206751 D1 19960814; FI 934570 A0 19931015; FI 934570 A 19940418; JP H06193594 A 19940712; KR 940009536 A 19940520; US 5403149 A 19950404
DOCDB simple family (application)
EP 92117780 A 19921017; CZ 215893 A 19931013; DE 59206751 T 19921017; FI 934570 A 19931015; JP 25870793 A 19931015; KR 930020797 A 19931008; US 12454493 A 19930922