EP 1447568 A3 20051026 - Impellers and diffusers for fans and compressors
Title (en)
Impellers and diffusers for fans and compressors
Title (de)
Lauf- und Leiträder für Verdichter und Ventilatoren
Title (fr)
Roues et diffuseurs pour ventilateurs et compresseurs
Publication
Application
Priority
DE 10302773 A 20030117
Abstract (en)
[origin: US2004184914A1] Impeller and stator for use in a fluid machine and consisting, for reducing flow noise and for improving the stability of the characteristic curve between the flow input and output cross-sections, of a solid material matrix with a plurality of flow channels for deflecting the flow and increasing the pressure.
IPC 1-7
IPC 8 full level
F04D 29/30 (2006.01); F04D 29/38 (2006.01); F04D 29/54 (2006.01); F04D 29/70 (2006.01)
CPC (source: EP US)
F04D 29/30 (2013.01 - EP US); F04D 29/38 (2013.01 - EP US); F04D 29/54 (2013.01 - EP US)
Citation (search report)
- [A] US 5584656 A 19961217 - ROSE MITCHELL [US]
- [DA] DE 174180 A
- [DA] CH 409225 A 19660315 - JUNKER & RUH AG [DE]
- [DA] GB 2065773 A 19810701 - ROLLS ROYCE
- [XA] PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03)
- [XA] PATENT ABSTRACTS OF JAPAN vol. 016, no. 026 (M - 1202) 22 January 1992 (1992-01-22)
- [A] PATENT ABSTRACTS OF JAPAN vol. 2002, no. 11 6 November 2002 (2002-11-06)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2004184914 A1 20040923; AT E425367 T1 20090315; DE 10302773 B3 20040311; DE 502004009108 D1 20090423; EP 1447568 A2 20040818; EP 1447568 A3 20051026; EP 1447568 B1 20090311; JP 2005290987 A 20051020
DOCDB simple family (application)
US 76083404 A 20040120; AT 04000093 T 20040107; DE 10302773 A 20030117; DE 502004009108 T 20040107; EP 04000093 A 20040107; JP 2004005441 A 20040113