DE743950C - Centrifugal compressor for internal combustion engines - Google Patents
Centrifugal compressor for internal combustion enginesInfo
- Publication number
- DE743950C DE743950C DEH163447D DEH0163447D DE743950C DE 743950 C DE743950 C DE 743950C DE H163447 D DEH163447 D DE H163447D DE H0163447 D DEH0163447 D DE H0163447D DE 743950 C DE743950 C DE 743950C
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- combustion engines
- centrifugal compressor
- diffuser
- circumference
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/14—Activated sludge processes using surface aeration
- C02F3/145—Protection against aerosols
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
-
- 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
- F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
- F02M2700/33—Compressors for piston combustion engines
- F02M2700/331—Charging and scavenging compressors
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- 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
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Combustion & Propulsion (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Kreiselverdichter für Brennkraftmaschinen Die Erfindung betrifft einen Kreiselverdichter für Brennkraftmaschinen, insbesondere für Zweitaktbrennkraftmaschinen mit Auspuffstegkühlung, dem mehrere Luftströme durch am Umfang der Druckleitung zwecks Abzapfung eines oder mehrerer Teilströme angeordnete Ringschlitze für verschiedene Zwecke, z. B. für Kühlzwecke, entnommen werden.Centrifugal compressor for internal combustion engines The invention relates to a Centrifugal compressors for internal combustion engines, in particular for two-stroke internal combustion engines with exhaust bridge cooling, which allows several air flows through the circumference of the pressure line for the purpose of tapping off one or more partial flows arranged ring slots for different Purposes, e.g. B. for cooling purposes, can be removed.
Erfindungsgemäß sind diese Ringschlitze am Umfang eines an das Spiralgehäuse des Verdichters sich anschließenden Diffusors angeordnet,- so daß Teilströme mit verschiedenem, aber gegenüber dem Hauptstrom kleinerem Druck abgenommen werden.According to the invention, these ring slots are on the circumference of one of the spiral housing of the compressor adjoining diffuser arranged, - so that partial flows with different, but lower pressure compared to the main flow.
Es ist bei Kreiselverdichtern, deren Hauptstrom beispielsweise einem Kühler für Brennkraftmaschinen zugeführt wird, bekannt, jedem Verdichter Teilströme zu entnehmen, die zur Kühlung zusätzlicher Hilfseinrichtungen oder auch zur Belüftung herangezogen werden. Ferner sind !bereits Kreiselverdichter für Brennkraftmaschinen bekanntgeworden, bei dienen der Hauptstrom ebenfalls für Kühlzwecke. Verwendung findet, während abgezweigte Teilströme- der Einlaßleitung der Brennkraftmaschine zugeführt werden. Diese Teilströme können, wenn sie in der bekannten Weise dein Hauptstrom entnommen werden, nur unter gleichen Druckverhältnissen abgezweigt werden. Ist aber z. B. zur Kühlung zusätzlicher Einrichtungen ein niedrigeres Druckgefälle als das im Hauptstrom vorhandene ausreichend, so wird dem Kreiselverdichter durch die vom Hauptstrom abgezweigten Teilströme Druckluft entnommen, die eine zu große Druckhöhe besitzt und daher zu einer unnötig. großen Auslegung des Kreiselverdichters führt. Die erfindungsgemäß vorgeschlagene Lösung zweigt die erforderlichen Teilströme mittels Ringschlitze, die am Diffusor angebracht sind, ab und hat es durch entsprechende Lage der Schlitze gemäß der Druckverteilung im Diffusor in der Hand, Teilströme zu entnehmen, die kein höheres Druckgefälle besitzen, als gerade notwendig.It is with centrifugal compressors whose main flow is, for example, a Cooler for internal combustion engines is supplied, known, each compressor partial flows refer to the information required for cooling additional auxiliary equipment or for ventilation can be used. Furthermore, centrifugal compressors for internal combustion engines are already available become known, when the main stream is also used for cooling purposes. use takes place while branched off partial flows of the inlet line of the internal combustion engine are fed. These substreams can if they are your in the known way Main stream are drawn off, can only be branched off under the same pressure conditions. But is z. B. a lower pressure gradient to cool additional equipment than that in the main flow is sufficient, so the centrifugal compressor is through the partial streams branched off from the main stream are taken from compressed air which is too large And therefore an unnecessary one. large design of the centrifugal compressor leads. The solution proposed according to the invention branches off the required partial flows by means of ring slots that are attached to the diffuser and has it through appropriate Position of the slots according to the pressure distribution in the diffuser in the hand, partial flows which do not have a higher pressure gradient than just necessary.
Die erfindungsgemäße Lösung ist mit dem Vorteil verbunden, daß durch die Grenzschichtabsaugung eine kürzere Baulänge des Diffusors erreicht wird, da durch die vorgenommene Grenzschichtabsau:gung der Öffnungswinkel des Diffusors steiler gehalten werden kann, ohne befürchten zu müssen, daß Wirbelbildungen auftreten. Die damit verbundene -niedrige Bauhöhe des Kreiselverdichters wirkt sich insbesondere in Verbindung mit einer Zweitaktbrennkraftmaschine auf ,die Raumaufteilung vorteilhaft aus.The solution according to the invention has the advantage that by the boundary layer suction a shorter overall length of the diffuser is achieved because Due to the boundary layer suction made, the opening angle of the diffuser becomes steeper can be held without fear that eddy formations occur. The associated low overall height of the centrifugal compressor works especially in connection with a two-stroke internal combustion engine, the floor plan advantageous.
In der Zeichnung ist .die Erfindung in einer Ausführungsform beispielsweise dargestellt. Die Abbildung zeigt einen Kreiselverdichter, der zur Förderung der Spülluft und gleichzeitig der Kühlluft einer Zweitaktbrennkraftmaschine dient.In the drawing, the invention is in one embodiment, for example shown. The illustration shows a centrifugal compressor that is used to promote the Purge air and, at the same time, the cooling air of a two-stroke internal combustion engine.
Mit i ist der Verdichter und mit 2 der Diffusor bezeichnet, der im gewählten Ausführungsbeispiel einen Ringschlitz 3 aufweist. Der durch den Diffusor geförderten Luft wird ein Teilstrom durch den Ringschlitz entnommen und durch die Leitung q. abgeführt, Es ist hierdurch möglich, beispielsweise der Diffusormündung einen Luftstrom von 2,.5 ata und einer Geschwindigkeit von 70 in in der Sekunde zu Spülzwecken zu entnehmen, während dem Ringschlitz beispielsweise ein Luftstrom aus der Grenzschicht der DiffttsorstrÖmung von 47 ata und der gleichen Geschwindigkeit zu Kühlztvecken entnommen wird.With i the compressor and with 2 the diffuser, which has an annular slot 3 in the selected embodiment. A partial flow of the air conveyed through the diffuser is withdrawn through the annular slot and passed through line q. This makes it possible, for example, to take an air flow of 2.5 ata and a speed of 70 in per second from the diffuser mouth for flushing purposes, while the ring slot, for example, an air flow from the boundary layer of the diffuser flow of 47 ata and the same speed is taken from cooling areas.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH163447D DE743950C (en) | 1940-10-18 | 1940-10-18 | Centrifugal compressor for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH163447D DE743950C (en) | 1940-10-18 | 1940-10-18 | Centrifugal compressor for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE743950C true DE743950C (en) | 1944-01-07 |
Family
ID=7183838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH163447D Expired DE743950C (en) | 1940-10-18 | 1940-10-18 | Centrifugal compressor for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE743950C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE854126C (en) * | 1948-10-02 | 1952-10-30 | Kloeckner Humboldt Deutz Ag | Air-cooled two-stroke internal combustion engine |
DE867025C (en) * | 1950-08-05 | 1953-02-16 | Modag Motorenfabrik Darmstadt | Air-cooled two-stroke internal combustion engine |
US4273562A (en) | 1979-10-01 | 1981-06-16 | A. Ahlstrom Osakeyhtio | Method and apparatus for pumping gaseous liquids and separating the gaseous components therefrom |
WO2023062069A1 (en) * | 2021-10-14 | 2023-04-20 | Robert Bosch Gmbh | Air compressor |
-
1940
- 1940-10-18 DE DEH163447D patent/DE743950C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE854126C (en) * | 1948-10-02 | 1952-10-30 | Kloeckner Humboldt Deutz Ag | Air-cooled two-stroke internal combustion engine |
DE867025C (en) * | 1950-08-05 | 1953-02-16 | Modag Motorenfabrik Darmstadt | Air-cooled two-stroke internal combustion engine |
US4273562A (en) | 1979-10-01 | 1981-06-16 | A. Ahlstrom Osakeyhtio | Method and apparatus for pumping gaseous liquids and separating the gaseous components therefrom |
WO2023062069A1 (en) * | 2021-10-14 | 2023-04-20 | Robert Bosch Gmbh | Air compressor |
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