EP 3183460 A1 20170628 - METHOD FOR MANUFACTURING AN IMPELLER OF A RADIAL TURBOMACHINE AND IMPELLER
Title (en)
METHOD FOR MANUFACTURING AN IMPELLER OF A RADIAL TURBOMACHINE AND IMPELLER
Title (de)
VERFAHREN ZUR ERZEUGUNG EINES LAUFRADS EINER RADIALTURBOFLUIDENERGIEMASCHINE UND LAUFRAD
Title (fr)
PROCÉDÉ POUR PRODUCTION D'UNE ROUE D'UNE TURBOMACHINE RADIALE ET ROUE
Publication
Application
Priority
- DE 102014222877 A 20141110
- EP 2015074293 W 20151021
Abstract (en)
[origin: WO2016074889A1] The invention relates to an impeller (IMP) of a radial turbo fluid energy machine (RTF), comprising - a wheel disc (SW), a cover disc (CW), - blades (BL), and - a hub (HB). The hub (HB) is designed to be mounted on a shaft (SH) which extends along an axis (X), the wheel disc (SW) extends substantially radially from the hub (HB), and the cover disc (CW) is connected to the wheel disc (SW) by means of the blades (BL) such that flow channels (FC) which are separated from one another in the circumferential direction are defined by the blades (BL) between the wheel disc (SW) and the cover disc (CW) in the circumferential direction in at least one radial region of the impeller (IMP). The impeller (IMP) has a first flow passage (O1) in a substantially axial direction in the radial proximity of the hub (HB), and the impeller (IMP) has a second flow passage (O2) in a substantially radial direction radially farther away from the hub (HB) than the first flow path passage (O1). In order to reduce flow losses while simultaneously optimizing the production complexity, the cover disc (CW) surface facing the wheel disc (SW) has a lower degree of roughness at least in some regions than the wheel disc (SW) surface facing the cover disc (CW). The invention further relates to a corresponding stage, to a method for producing a component around which a fluid flows, and to a component produced in a corresponding manner.
IPC 8 full level
F04D 29/02 (2006.01); F04D 29/22 (2006.01); F04D 29/28 (2006.01); F04D 29/68 (2006.01); F04D 29/44 (2006.01)
CPC (source: CN EP RU US)
F01D 5/048 (2013.01 - US); F04D 29/02 (2013.01 - CN EP RU US); F04D 29/2272 (2013.01 - CN EP US); F04D 29/284 (2013.01 - CN EP US); F04D 29/30 (2013.01 - US); F04D 29/441 (2013.01 - EP US); F04D 29/681 (2013.01 - EP US); F05D 2230/50 (2013.01 - US); F05D 2240/31 (2013.01 - US); F05D 2300/516 (2013.01 - CN EP US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102014222877 A1 20160512; CN 107002701 A 20170801; EP 3183460 A1 20170628; RU 2662989 C1 20180731; US 2017314576 A1 20171102; WO 2016074889 A1 20160519
DOCDB simple family (application)
DE 102014222877 A 20141110; CN 201580061064 A 20151021; EP 15787923 A 20151021; EP 2015074293 W 20151021; RU 2017120316 A 20151021; US 201515523143 A 20151021