EP2603702A1 - Strömungsverdichter, insbesondere zur aufladung eines verbrennungsmotors - Google Patents
Strömungsverdichter, insbesondere zur aufladung eines verbrennungsmotorsInfo
- Publication number
- EP2603702A1 EP2603702A1 EP12715595.0A EP12715595A EP2603702A1 EP 2603702 A1 EP2603702 A1 EP 2603702A1 EP 12715595 A EP12715595 A EP 12715595A EP 2603702 A1 EP2603702 A1 EP 2603702A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- inlet
- medium
- channel
- compressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
Definitions
- the present invention relates to a flow compressor, in particular for charging an internal combustion engine, in detail according to the preamble of claim 1.
- Flow compressors of the generic type are driven for example by means of an exhaust gas turbine, wherein the flow compressor and the
- Exhaust gas turbine can be arranged on a common shaft to form a turbocharger.
- a mechanical drive of the flow compressor for example by means of the crankshaft of the
- Compressor impeller has flowed, flows outside the inlet channel in the direction of the compressor inlet side end of the inflow and mixed there with subsequent flowing into the inflow channel medium.
- the recirculation slots are outside of the inflow channel
- Inlet channel open or in the flow direction of the medium to be compressed behind the compressor inlet, however, with sufficient distance from the
- the sequence of recirculation slots, the channel outside the inflow channel for returning the medium to be compressed and the mouth or mouths is also referred to as a recirculation channel. Due to the opposite direction of flow of the medium to be compressed in the inflow channel opposite flow direction of the medium in
- a known measure therefore envisages the use of a sound shielding ring in the inflow channel or in the recirculation channel in the region of the end of the compressor inlet which separates the
- FIG. 1 is an axial section through a flow compressor with a Schallabnerring 10, between the compressor housing 1 and a
- Connection flange 2 is clamped, shown.
- the present invention is based on the object, a
- Flow compressor for charging an internal combustion engine for example driven via an exhaust gas turbine or mechanically driven via the
- Internal combustion engine itself is executed, has a housing and a rotatably mounted in the housing compressor impeller. Furthermore, an inflow channel for the medium to be compressed, usually air, provided in
- Flow direction of the medium to be compressed from a compressor inlet extends to the compressor impeller.
- a recirculation channel is provided for the medium to be compressed.
- the recirculation channel branches off, as described above, in the region of the compressor impeller-side end from the inflow channel and opens in the region of the compressor inlet-side end in the inflow channel, wherein hereunder both a Mouth in the compressor inlet and behind the compressor inlet in
- Intake channel is to be understood.
- Compressor inlet side end is inserted in the inflow and / or in the recirculation channel to shield sound waves of the flowing back via the recirculation channel to be compressed medium.
- the sound shielding ring can be
- Recirculation channel flowing back medium or by the flowing medium or vibrations in the inlet channel and the like is reliably prevented.
- Schallabnring provided which engage in corresponding undercuts of the housing or a circumferential or over a portion of the circumference circumferential undercut of the housing.
- the one or more locking projections are usually positioned on an elastically resilient portion of the Schallabnrings and / or the housing and may additionally or alternatively also be made of elastic material itself.
- the undercuts in the housing are formed by one or more slits extending at least partially in the radial direction, which form the branch of the recirculation channel in the region of the compressor rotor-side end of the inflow channel.
- Such slots are also referred to as recirculation slots.
- the Schallabnring has, according to an embodiment of the invention, a plurality of circumferential at an over the circumference annular
- Main body connected tongues which are provided with the latching projections, in particular at its the base body facing away from the free end. Accordingly, the tongues can be elastically deformable radially outwards and / or inwardly to produce the desired elasticity, thus enabling the latching projections to slide over the region of the housing delimiting the undercut when the sound shielding ring is inserted.
- the tongues may protrude into the recirculation channel from the compressor inlet side end in the direction of the compressor inlet and the
- An embodiment of the invention provides that both the
- Inlet passage and the recirculation passage extend in the direction of the rotational axis of the compressor impeller to form an axial-axial compressor or an axial-radial compressor.
- the extension of the recirculation channel is guided at least insofar in the axial direction as the return of the recirculated medium takes place in the direction of the compressor inlet.
- the Schallabnicting can in particular be made in one piece, advantageously urgeformt one piece.
- Figure 2 shows a first embodiment with a means of a
- Figure 3 is a molded on the compressor housing Schallabnring
- Figure 4 a cast in the compressor housing as an insert
- Compressor impeller 3 which rotates on the compressor shaft 4, shown.
- a connection flange 2 is connected to the compressor housing 1 to an air line for the air to be compressed as
- the suction-side flow guide region 6 comprises the inflow channel 8 extending from the compressor inlet 5 to the compressor impeller 3 and the recirculation channel 9 outside, here radially outside, of
- openings 12 In the compressor inlet end of the inflow channel 8 or in the region thereof are provided openings 12, via which the medium to be compressed flows from the recirculation channel 9 into the inflow channel 8.
- a Schallabnotring 10 is provided in the region of the compressor inlet 5, which in the embodiment shown an annular base body 13 integrally connected thereto, in the axial direction of the compressor (in Direction of the compressor shaft 4) extending tongues 14 has.
- This Schallabpressring 10 is shown in Figure 2a again in an axial section and in Figure 2b in a plan view in the axial direction.
- the tongues 14 carry at their free axial end latching projections 15, which are intended to be in the recirculation slots 11 of the
- the sound shielding ring 10 has an annular base body 13 closed over the circumference with three tongues 14 connected thereto.
- Tongues 14 can be changed or a circumferential over the entire circumference tongue 14 may be provided.
- the provision of locking projections 15 which engage in the recirculation slots 11, and thus project radially inwardly from the tongues 14, is favorable because the recirculation slots 11 for branching the recirculating medium are usually provided when a Schallabnerring 10 is required.
- FIG. 3 shows an alternative embodiment of the invention, wherein the Schallabtranring 10 is molded on the compressor housing 1. Instead of casting directly on the compressor housing 1, it would alternatively be possible to cast it onto the connecting flange 2.
- 4 shows an embodiment with a Schallabprocessring 10, which is cast in the form of an insert in the compressor housing 1. Here too, pouring the insert into the connecting flange 2 would be an alternative option.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011019006A DE102011019006B3 (de) | 2011-04-29 | 2011-04-29 | Strömungsverdichter, insbesondere zur Aufladung eines Verbrennungsmotors |
PCT/EP2012/001532 WO2012146344A1 (de) | 2011-04-29 | 2012-04-07 | Strömungsverdichter, insbesondere zur aufladung eines verbrennungsmotors |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2603702A1 true EP2603702A1 (de) | 2013-06-19 |
Family
ID=45992168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12715595.0A Withdrawn EP2603702A1 (de) | 2011-04-29 | 2012-04-07 | Strömungsverdichter, insbesondere zur aufladung eines verbrennungsmotors |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2603702A1 (zh) |
JP (1) | JP2014512485A (zh) |
CN (1) | CN103154525A (zh) |
DE (1) | DE102011019006B3 (zh) |
WO (1) | WO2012146344A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5047352B2 (ja) * | 2010-12-28 | 2012-10-10 | 三菱重工業株式会社 | 排気ターボ過給機のハウジング構造 |
EP2951440B1 (en) | 2013-01-31 | 2019-07-31 | Danfoss A/S | Centrifugal compressor with extended operating range |
EP3411596B1 (en) | 2016-02-04 | 2023-11-01 | Danfoss A/S | Active surge control in centrifugal compressors using microjet injection |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4027174A1 (de) * | 1990-08-28 | 1992-03-05 | Kuehnle Kopp Kausch Ag | Kennfeldstabilisierung bei einem radialverdichter |
GB2256460B (en) * | 1991-04-16 | 1994-09-28 | Holset Engineering Co | Compressor |
GB9722916D0 (en) * | 1997-10-31 | 1998-01-07 | Holset Engineering Co | Compressor |
DE19823274C1 (de) * | 1998-05-26 | 1999-10-14 | Daimler Chrysler Ag | Abgasturbolader für eine Brennkraftmaschine |
WO2006090152A1 (en) * | 2005-02-23 | 2006-08-31 | Cummins Turbo Technologies Limited | Compressor |
US7624575B2 (en) * | 2006-12-08 | 2009-12-01 | Honeywell International Inc. | EGR mixer and ported shroud compressor housing |
US8690524B2 (en) * | 2009-10-08 | 2014-04-08 | Honeywell International Inc. | Low-noise ported-shroud compressor for a turbocharger |
-
2011
- 2011-04-29 DE DE102011019006A patent/DE102011019006B3/de not_active Expired - Fee Related
-
2012
- 2012-04-07 CN CN2012800033324A patent/CN103154525A/zh active Pending
- 2012-04-07 JP JP2014506784A patent/JP2014512485A/ja active Pending
- 2012-04-07 EP EP12715595.0A patent/EP2603702A1/de not_active Withdrawn
- 2012-04-07 WO PCT/EP2012/001532 patent/WO2012146344A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012146344A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2014512485A (ja) | 2014-05-22 |
WO2012146344A1 (de) | 2012-11-01 |
DE102011019006B3 (de) | 2012-08-30 |
CN103154525A (zh) | 2013-06-12 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20130206 |
|
AK | Designated contracting states |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20131204 |