EP 3237760 B1 20200205 - DIFFUSER FOR A CENTRIFUGAL COMPRESSOR
Title (en)
DIFFUSER FOR A CENTRIFUGAL COMPRESSOR
Title (de)
DIFFUSOR FÜR EINEN RADIALVERDICHTER
Title (fr)
DIFFUSEUR POUR UN COMPRESSEUR CENTRIFUGE
Publication
Application
Priority
- DE 102014119558 A 20141223
- DE 102014119562 A 20141223
- EP 2015081037 W 20151222
Abstract (en)
[origin: WO2016102594A1] The diffuser (1) for a radial compressor (100) comprises: – a diffuser duct section (2) which is formed of a first side wall (3) and a second side wall (4), wherein the first side wall (3) and the second side wall (4) are arranged so as to diverge at least partially with respect to one another in the flow direction, – a blade disk (5) with a number of blades (6, 6') wherein the blades (6, 6') are arranged at least partially in the diffuser duct section (2), wherein each of the blades (6, 6') has a pressure side (22) and a suction side (23), and wherein the pressure side (22) and the suction side (23) of each one of the blades (6, 6') is bounded by a blade leading edge (8) and by a blade trailing edge (8') of these blades (6, 6'), – a number of pressure-equalizing openings (7, 7') which are machined into at least one of the two side walls (3, 4) of the diffuser duct section (2), wherein each one of the number of pressure-equalizing openings (7, 7') is arranged between the pressure side (22) of one blade (6) and the suction side (23) of the adjacent blade (6') of the blade disk (5), – a first annular duct (10) which is arranged behind the pressure-equalizing openings (7, 7'), wherein the first annular duct (10) is fluidically connected to the diffuser duct section (2) via at least two of the pressure-equalizing openings (7, 7'), whereby a number of diffuser passages of the diffuser (1) can be fluidically connected to one another, wherein a diffuser passage is a region between two adjacent blades (6, 6') of the blade disk (5) in the diffuser duct section (2), characterized in that the first annular duct (10) can be connected to a pressure plenum (31) via a connecting duct (30), whereby a fluid can flow from the pressure plenum (31) into the first annular duct (10) in order that the first annular duct (10) is flushed with the fluid.
IPC 8 full level
F04D 27/02 (2006.01); F04D 29/44 (2006.01); F04D 29/68 (2006.01)
CPC (source: CN EP KR US)
F04D 27/0207 (2013.01 - CN KR US); F04D 29/444 (2013.01 - CN EP KR US); F04D 29/5846 (2013.01 - US); F04D 29/681 (2013.01 - CN EP KR US); F04D 29/701 (2013.01 - EP US); F05D 2220/40 (2013.01 - CN EP KR US); F05D 2250/52 (2013.01 - EP US); F05D 2260/15 (2013.01 - US); F05D 2260/606 (2013.01 - US); F05D 2260/607 (2013.01 - 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
DOCDB simple family (publication)
WO 2016102594 A1 20160630; CN 107110178 A 20170829; CN 107110178 B 20200310; EP 3237760 A1 20171101; EP 3237760 B1 20200205; JP 2018500502 A 20180111; JP 7105563 B2 20220725; KR 102511426 B1 20230317; KR 20170096636 A 20170824; US 10473115 B2 20191112; US 2017284401 A1 20171005
DOCDB simple family (application)
EP 2015081037 W 20151222; CN 201580070803 A 20151222; EP 15823510 A 20151222; JP 2017534235 A 20151222; KR 20177020542 A 20151222; US 201715630938 A 20170622