EP 3612721 B1 20211006 - METHOD FOR THE CONSTRUCTION OF BLADED RINGS FOR RADIAL TURBOMACHINERY
Title (en)
METHOD FOR THE CONSTRUCTION OF BLADED RINGS FOR RADIAL TURBOMACHINERY
Title (de)
VERFAHREN ZUM AUFBAU VON LAMELLENKRÄNZEN FÜR RADIALE TURBOMASCHINEN
Title (fr)
PROCÉDÉ DE CONSTRUCTION D'ANNEAUX À AUBES POUR TURBOMACHINE RADIALE
Publication
Application
Priority
- IT 201700028266 A 20170314
- IB 2018051607 W 20180312
Abstract (en)
[origin: WO2018167632A1] The present invention relates to a method for constructing bladed rings for radial turbomachines. The method comprises: preparing a cylindrical block (M; M1, M2); making in the cylindrical block (M; M1, M2) a wavy circumferential cut (28, 28', 28") delimiting a first plurality of teeth (29) and a second plurality of teeth (30) meshing in one another; wherein the wavy circumferential cut (28, 28', 28") splits the cylindrical block (M; M1, M2) into a first annular body (31; 31 ', 31 ") provided with the first plurality of teeth (29) and into a second annular body (32; 32', 32") provided with the second plurality of teeth (30); separating the first annular body (31; 31 ', 31 ") from the second annular body (32; 32', 32"); removing material from each of the teeth (29, 30) of the first and second plurality to confer to each tooth (29, 30) the outline of at least one blade (22', 22") with an aerodynamic profile; joining coaxially the first annular body (31;31 ', 31 ") to the second annular body (32; 32', 32") by inserting the first blades (22') between the second blades (22").
IPC 8 full level
CPC (source: EP)
F01D 5/04 (2013.01); F01D 5/34 (2013.01); F05D 2230/10 (2013.01)
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 2018167632 A1 20180920; DK 3612721 T3 20220110; EP 3612721 A1 20200226; EP 3612721 B1 20211006; ES 2901098 T3 20220321; HR P20211991 T1 20220318; IT 201700028266 A1 20180914; LT 3612721 T 20211227
DOCDB simple family (application)
IB 2018051607 W 20180312; DK 18715806 T 20180312; EP 18715806 A 20180312; ES 18715806 T 20180312; HR P20211991 T 20180312; IT 201700028266 A 20170314; LT 18051607 T 20180312