EP 3289226 B1 20200909 - INLET NOZZLE FOR A RADIAL, DIAGONAL OR AXIAL-FLOW FAN, AND A RADIAL, DIAGONAL OR AXIAL-FLOW FAN COMPRISING AN INLET NOZZLE
Title (en)
INLET NOZZLE FOR A RADIAL, DIAGONAL OR AXIAL-FLOW FAN, AND A RADIAL, DIAGONAL OR AXIAL-FLOW FAN COMPRISING AN INLET NOZZLE
Title (de)
EINSTRÖMDÜSE FÜR EINEN RADIAL-, DIAGONAL- ODER AXIALVENTILATOR UND RADIAL-, DIAGONAL- ODER AXIALVENTILATOR MIT EINER EINSTRÖMDÜSE
Title (fr)
BUSE D'ENTRÉE POUR VENTILATEUR RADIAL, DIAGONAL OU AXIAL ET VENTILATEUR RADIAL, DIAGONAL OU AXIAL ÉQUIPÉ D'UNE BUSE D'ENTRÉE
Publication
Application
Priority
- DE 102015207948 A 20150429
- DE 2016200194 W 20160425
Abstract (en)
[origin: WO2016173595A1] The invention relates to an inlet nozzle (1) for a radial, diagonal or axial-flow fan, comprising an inlet section (3) that is circular in cross-section, has a radius of curvature, and tapers in diameter in the direction of flow (4), characterised by the presence of a measure or a flow element on or in the curved surface (5) of said inlet section for the purpose of forcing turbulent boundary layers in the flow, which can counteract a stall in this region. A radial, diagonal or axial-flow fan comprises a corresponding inlet nozzle (1).
IPC 8 full level
F04D 17/16 (2006.01); F04D 19/00 (2006.01); F04D 29/42 (2006.01); F04D 29/54 (2006.01); F04D 29/68 (2006.01)
CPC (source: EP US)
F04D 17/16 (2013.01 - EP US); F04D 19/002 (2013.01 - EP US); F04D 29/325 (2013.01 - US); F04D 29/4213 (2013.01 - EP US); F04D 29/541 (2013.01 - US); F04D 29/547 (2013.01 - EP US); F04D 29/665 (2013.01 - US); F04D 29/681 (2013.01 - EP US); F05D 2250/51 (2013.01 - EP US)
Citation (opposition)
Opponent : ebm-papst Mulfingen GmbH & Co. KG,
- DE 102012021372 A1 20140430 - ZIEHL ABEGG AG [DE]
- US 2008085184 A1 20080410 - WAMPLER RICHARD K [US], et al
- DE 20001746 U1 20010621 - MULFINGEN ELEKTROBAU EBM [DE]
- EP 1122444 B1 20050323 - EBM PAPST MULFINGEN GMBH & CO [DE]
- JP 2004211931 A 20040729 - DAIKIN IND LTD
- JP 2775796 B2 19980716
- CN 104405654 A 20150311 - DEQING ZHENDA ELECTRIC CO LTD
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016173595 A1 20161103; CN 107532601 A 20180102; CN 107532601 B 20210108; DE 102015207948 A1 20161103; EP 3289226 A1 20180307; EP 3289226 B1 20200909; US 10975884 B2 20210413; US 2018142702 A1 20180524
DOCDB simple family (application)
DE 2016200194 W 20160425; CN 201680024784 A 20160425; DE 102015207948 A 20150429; EP 16727293 A 20160425; US 201615570353 A 20160425