EP 2078866 A1 20090715 - VARIABLE DIFFUSER AND COMPRESSOR
Title (en)
VARIABLE DIFFUSER AND COMPRESSOR
Title (de)
VARIABLER DIFFUSOR UND KOMPRESSOR
Title (fr)
DIFFUSEUR VARIABLE ET COMPRESSEUR
Publication
Application
Priority
- JP 2007052354 W 20070209
- JP 2006294408 A 20061030
Abstract (en)
There is provided a variable diffuser for a compressor in which the efficiency can be further improved. In a variable diffuser 30 in which a diffuser passage 33, which restores a static pressure from a dynamic pressure by decelerating an air flow that is discharged from an outer peripheral end of an impeller that rotates within a housing, is formed between a hub side wall 32a and a shroud side wall 31a, and diffuser vanes are provided in the diffuser passage 33, fixed vanes 35 and movable vanes 34 that are the diffuser vanes, are alternately fixed in the circumferential direction to a fixed circular plate 32 and a movable circular plate 31 that form the hub side wall 32a and the shroud side wall 31a, and there is provided a driving device 40 that turns the movable circular plate 31 about the same axis as the rotation of the impeller.
IPC 8 full level
F04D 29/46 (2006.01)
CPC (source: EP KR US)
F04D 17/10 (2013.01 - KR); F04D 23/00 (2013.01 - KR); F04D 29/462 (2013.01 - EP KR US); F04D 29/464 (2013.01 - EP KR US); F05D 2210/12 (2013.01 - KR); F05D 2250/52 (2013.01 - EP KR US); Y10S 415/00 (2013.01 - KR); Y10S 417/00 (2013.01 - KR)
Citation (search report)
See references of WO 2008053605A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2078866 A1 20090715; CN 101326373 A 20081217; JP 2008111368 A 20080515; JP 4795912 B2 20111019; KR 20080059352 A 20080627; US 2010129204 A1 20100527; WO 2008053605 A1 20080508
DOCDB simple family (application)
EP 07708290 A 20070209; CN 200780000635 A 20070209; JP 2006294408 A 20061030; JP 2007052354 W 20070209; KR 20077029707 A 20071220; US 98886907 A 20070209