EP 2603702 A1 20130619 - FLOW COMPRESSOR, IN PARTICULAR FOR THE SUPERCHARGING OF AN INTERNAL COMBUSTION ENGINE
Title (en)
FLOW COMPRESSOR, IN PARTICULAR FOR THE SUPERCHARGING OF AN INTERNAL COMBUSTION ENGINE
Title (de)
STRÖMUNGSVERDICHTER, INSBESONDERE ZUR AUFLADUNG EINES VERBRENNUNGSMOTORS
Title (fr)
TURBOCOMPRESSEUR, DESTINÉ NOTAMMENT À LA SURALIMENTATION D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102011019006 A 20110429
- EP 2012001532 W 20120407
Abstract (en)
[origin: WO2012146344A1] A flow compressor, in particular for the supercharging of an internal combustion engine, having a compressor housing; having a compressor rotor which is rotatably mounted in the compressor housing; having an inflow duct for the medium to be compressed, which inflow duct extends in the flow direction of the medium to be compressed from a compressor inlet to the compressor rotor; having a recirculation duct for the medium to be compressed, which recirculation duct branches off from the inflow duct in the region of the compressor-rotor-side end of the inflow duct and opens out in the inflow duct in the region of the compressor-inlet-side end; having a sound shielding ring which is inserted in the inflow duct and/or in the recirculation duct in the region of the compressor-inlet-side end in order to shield against sound waves of the medium to be compressed which flows back via the recirculation duct; wherein the sound shielding ring is inserted in a positively locking manner in the compressor housing by means of a snap-action connection. The invention is characterized in that - the sound shielding ring has a multiplicity of detent projections which engage into an undercut of the compressor housing; - the sound shielding ring has a multiplicity of tongues which are connected to a circumferentially encircling annular main body and which are provided with the detent projections, and the tongues project from the compressor-inlet-side end into the recirculation duct in the direction of the compressor rotor.
IPC 8 full level
F04D 29/42 (2006.01); F04D 29/68 (2006.01)
CPC (source: EP)
F04D 29/4213 (2013.01); F04D 29/663 (2013.01); F04D 29/685 (2013.01); F05D 2220/40 (2013.01)
Citation (search report)
See references of WO 2012146344A1
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)
DE 102011019006 B3 20120830; CN 103154525 A 20130612; EP 2603702 A1 20130619; JP 2014512485 A 20140522; WO 2012146344 A1 20121101
DOCDB simple family (application)
DE 102011019006 A 20110429; CN 201280003332 A 20120407; EP 12715595 A 20120407; EP 2012001532 W 20120407; JP 2014506784 A 20120407