Global Patent Index - EP 1452742 A1

EP 1452742 A1 20040901 - Pre-whirl generator for radial compressor

Title (en)

Pre-whirl generator for radial compressor

Title (de)

Dralldrossel für Radialverdichter

Title (fr)

Directrice d'admission pour compresseur radial

Publication

EP 1452742 A1 20040901 (EN)

Application

EP 03002520 A 20030205

Priority

EP 03002520 A 20030205

Abstract (en)

A pre-whirl generating apparatus (26) is provided that employs deformable air deflecting vanes (46) adjacent the inlet (18) of a radial air compressor (12-22), which vanes (46) can be mechanically deformed to generate positive, neutral, or negative pre-whirl flow to the compressor. A minimum number of parts are used to position one or more thin, deformable vanes (46) in the intake channel (34) leading to the compressor inlet (18). In their undeformed position, the vanes (46) do not deflect the incoming air, thereby causing little or no flow restriction. To achieve the desired positive or negative pre-whirl of flow to the compressor (12-22), the trailing edge (62) of the vanes (46) are deflected transverse to the direction of flow in the channel (34) in either the positive or negative direction. <IMAGE>

IPC 1-7

F04D 29/46; F04D 27/02

IPC 8 full level

F01D 17/14 (2006.01); F01D 17/16 (2006.01); F04D 27/02 (2006.01); F04D 29/42 (2006.01)

CPC (source: EP)

F01D 17/141 (2013.01); F01D 17/162 (2013.01); F04D 27/0246 (2013.01); F04D 29/4213 (2013.01); F04D 29/462 (2013.01); F05D 2220/40 (2013.01); F05D 2250/51 (2013.01); F05D 2260/14 (2013.01); F05D 2260/4031 (2013.01); F05D 2260/74 (2013.01); F05D 2260/76 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 1452742 A1 20040901; EP 1452742 B1 20051130; DE 60302542 D1 20060105; DE 60302542 T2 20060810; DE 60302542 T8 20070329

DOCDB simple family (application)

EP 03002520 A 20030205; DE 60302542 T 20030205