DE102004031619A1 - Device for venting air from crankcase of internal combustion engine, has heat exchanger in venting line from crankcase to suction side of engine, for removing heat - Google Patents
Device for venting air from crankcase of internal combustion engine, has heat exchanger in venting line from crankcase to suction side of engine, for removing heat Download PDFInfo
- Publication number
- DE102004031619A1 DE102004031619A1 DE102004031619A DE102004031619A DE102004031619A1 DE 102004031619 A1 DE102004031619 A1 DE 102004031619A1 DE 102004031619 A DE102004031619 A DE 102004031619A DE 102004031619 A DE102004031619 A DE 102004031619A DE 102004031619 A1 DE102004031619 A1 DE 102004031619A1
- Authority
- DE
- Germany
- Prior art keywords
- crankcase
- heat exchanger
- internal combustion
- combustion engine
- venting
- 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- Withdrawn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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
-
- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0411—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using cooling means
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur insbesondere geregelten Entlüftung des Kurbelgehäuses einer Brennkraftmaschine, umfassend eine vom Kurbelgehäuse ausgehende, zur Saugseite der Brennkraftmaschine führende Entlüftungsleitung.The The invention relates to a device for particularly regulated vent of the crankcase an internal combustion engine comprising a crankcase outgoing, to the suction side of the engine leading vent line.
Während des Betriebes von Brennkraftmaschinen können aufgrund der nicht absoluten Dichteinheit der Brennräume im Bereich der Kolbenringe Gase, Blow-by-Gase, in das Kurbelgehäuse entweichen und bedingen dort einen Druckanstieg, welcher sich sehr nachteilig auf Leistung und Verbrauch der Brennkraftmaschine auswirkt. Insbesondere bei Kolbenbewegungen in Richtung des unteren Totpunkts UT entstehen, abhängig von sich überlagernden Kolbenbewegungen bei Mehrzylinderbrennkraftmaschinen, Druckspitzen. Es sind daher üblicherweise Kurbelgehäuseentlüftungen vorgesehen, über welche Gase aus dem Kurbelgehäuse entweichen und in das Ansaugsystem der Brennkraftmaschine rückgeführt werden können.During the Operation of internal combustion engines can not be due to the absolute Sealing unit of the combustion chambers In the area of the piston rings gases, blow-by gases, escape into the crankcase and there cause a pressure increase, which is very disadvantageous on performance and consumption of the internal combustion engine. Especially occur during piston movements in the direction of bottom dead center UT, dependent of overlapping ones Piston movements in multi-cylinder internal combustion engines, pressure peaks. It is therefore common crankcase ventilation provided over which gases from the crankcase escape and be returned to the intake system of the internal combustion engine can.
In diesem Zusammenhang wird auf die WO 02/070871 A2 verwiesen, welche eine geregelte Entlüftung des Kurbelgehäuses mit einem Drucksensor am Kurbelgehäuse, einem geregelt betätigbaren Ventil, einer Pumpeinrichtung sowie einem Steuergerät beschreibt.In In this context reference is made to WO 02/070871 A2, which a controlled ventilation of the crankcase with a pressure sensor on the crankcase, a controllable actuated valve, a pumping device and a control unit describes.
Gemäß der WO 02/070871 A2 werden die Kurbelgehäuse-Entlüftungsgase der Brennkraftmaschine saugseitig wieder zugeführt. Jedoch hat sich herausgestellt, dass aufgrund der hohen Temperatur der Entlüftungsgase die thermische Belastung der Brennkraftmaschine zu- und deren Leistungsfähigkeit abnimmt.According to the WO 02/070871 A2 become the crankcase ventilation gases of the internal combustion engine fed back on the suction side. However, it has been found that due to the high temperature of the vent gases the thermal load of the internal combustion engine and their performance decreases.
Der Erfindung liegt die Aufgabe zugrunde, eine eingangs genannt Einrichtung zur insbesondere geregelten Entlüftung des Kurbelgehäuses einer Brennkraftmaschine unter Vermeidung übermäßiger thermischer Belastung einer bereitzustellen.Of the Invention is based on the object, an initially mentioned device for particularly regulated ventilation of the crankcase an internal combustion engine while avoiding excessive thermal stress one to provide.
Diese Aufgabe wird erfindungsgemäß mit einer Einrichtung mit den Merkmalen des Anspruchs 1 gelöst, wobei der zugrundeliegende Gedanke die Anordnung eines Wärmetauschers im Verlauf der Entlüftungsleitung umfasst. Mittels des Wärmetauschers ist so eine Ableitung von Wärme der Entlüftungsgase ermöglicht, sodass diese gekühlt der Brennkraftmaschine saugseitig zuführbar sind.These Task is according to the invention with a Device solved with the features of claim 1, wherein the underlying idea is the arrangement of a heat exchanger in the course of the vent line includes. By means of the heat exchanger is such a derivative of heat the venting gases allows so that cooled the internal combustion engine can be supplied suction side.
Besonders zu bevorzugende Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Especially preferred embodiments and developments of the invention are the subject of the dependent claims.
Gemäß eines sehr vorteilhaften Ausführungsbeispiels ist der Wärmetauscher zur Wärmeableitung flüssigkeitsdurchströmbar. Es handelt sich demnach um einen Gas-Füssigkeits-Wärmetauscher, wobei zweckmäßigerweise als Kühlmedium Wasser, wie Kühlwasser der Brennkraftmaschine, verwendet wird.According to one very advantageous embodiment is the heat exchanger for heat dissipation flüssigkeitsdurchströmbar. It Accordingly, it is a gas-liquid heat exchanger, where expediently as cooling medium water, like cooling water the internal combustion engine is used.
Einem ebenfalls als sehr vorteilhaft angesehenen Ausführungsbeispiel zufolge ist der Wärmetauscher zur Wärmeableitung gasdurchströmbar. Es handelt sich demnach um einen Gas-Gas-Wärmetauscher, wobei zweckmäßigerweise eine Kühlung mittels Luft erfolgt, welche passiv fahrtwindbedingt oder aktiv mittels eines Lüfters zugeführt wird.a also considered to be very advantageous embodiment according to the heat exchanger for heat dissipation gasdurchströmbar. It is therefore a gas-gas heat exchanger, expediently a cooling means Air takes place, which passively wind-induced or active means a fan supplied becomes.
Zweckmäßigerweise umfasst die Einrichtung im Verlauf der Entlüftungsleitung eine Pumpe; Es bietet sich an, den Wärmetauscher zwischen Pumpe und Sauganlage anzuordnen.Conveniently, the device comprises a pump in the course of the vent line; It lends itself to the heat exchanger to arrange between pump and suction system.
Bevorzugt ist es, wenn die erfindungsgemäße Einrichtung bei einer Brennkraftmaschine mit einer Einrichtung zur Aufladung und Ladeluftkühlung, insbesondere mittels Wärmetauscher, zum Einsatz kommt und die Einrichtung zur Ladeluftkühlung im Verlauf der Entlüftungsleitung angeordnet ist. Beispielsweise werden die Entlüftungsgase auf der Warmseite des Ladeluftkühlers in den Ladeluftstrom eingespeist.Prefers it is when the device according to the invention in an internal combustion engine with a device for charging and intercooling, in particular by means of heat exchanger, is used and the device for intercooling in the course the vent line is arranged. For example, the vent gases on the hot side of the intercooler fed into the charge air stream.
Besondere Vorteile ergeben sich bei einer Ausgestaltung der erfindungsgemäßen Einrichtung mit einer über ein gesteuert betätigbares Ventil beaufschlagbaren Bypass-Leitung zur Umgehung des Wärmetauschers. Abhängig von der Stellung des Ventils ist der gesamte Entlüftungsgasstrom durch den Wärmetauscher, ein erster Teilstrom durch Wärmetauscher und ein zweiter Teilstrom durch die Bypass-Leitung oder der den gesamte Entlüftungsgasstrom durch die Bypass-Leitung leitbar.Special Benefits arise in an embodiment of the device according to the invention one over a controlled actuated Valve act on bypass line to bypass the heat exchanger. Dependent from the position of the valve is the entire vent gas flow through the heat exchanger, a first partial flow through the heat exchanger and a second partial flow through the bypass line or the entire vent gas flow Conductable by the bypass line.
Nachfolgend ist sind besonders zu bevorzugende Ausführungsbeispiele der Erfindung unter Bezugnahme auf Figuren näher erläutert, dabei zeigen schematisch und beispielhaftfollowing are particularly preferred embodiments of the invention with reference to figures closer explains thereby show schematically and by way of example
Im
Betrieb erzeugt die hier nicht näher
gezeigte Brennkraftmaschine
Um über den
gesamten Betriebsbereich der Brennkraftmaschine in deren Kurbelgehäuse einen ausreichenden
Unterdruck zu erzeugen, umfasst die erfindungsgemäße Einrichtung
im Verlauf der Entlüftungsleitung
Ferner
ist in der Entlüftungsleitung
Da
die Entlüftungsgase
in der Regel hohe Temperaturen aufweisen mit der Folge, dass bei
einer Rückführung zur
Einlassseite
Bei
einer wassergekühlten
Brennkraftmaschine
Insbesondere bietet es sich an, die erfindungsgemäße Kühlung der Entlüftungsgase in Verbindung mit einer aufgeladenen Brennkraftmaschine mit Ladeluftkühlung vorzusehen, wobei eine ohnehin vorhandener Ladeluftkühler gleichzeitig zur Kühlung der Entlüftungsgase verwendbar ist. Zweckmäßigerweise können die heißen Entlüftungsgase des Kurbelgehäuses dem Ladeluftkühler alleine oder gemeinsam mit Ladeluft auf dessen Warmseite zugeführt werden; in diesem Fall ergibt sich eine besonders einfache und kostengünstige Umsetzung der Erfindung. Alternativ kann auch ein Ladeluftkühler so ausgestaltet sein, dass ein erster Bereich von Ladeluft und ein zweiter Bereich von Entlüftungsgasen durchströmbar ist, sodass Ladeluft und Entlüftungsgase voneinander unabhängig einerseits und ein Kühlmedium andererseits den Kühler durchströmen.Especially it makes sense, the inventive cooling of the venting gases in connection with a supercharged internal combustion engine with intercooler, an already existing charge air cooler at the same time for cooling the vent gases is usable. Conveniently, can the hot ones vent gases of the crankcase the intercooler be supplied alone or together with charge air on the hot side; In this case, a particularly simple and cost-effective implementation results the invention. Alternatively, a charge air cooler can be configured as well be that a first range of charge air and a second range can be flowed through by vent gases, so that charge air and vent gases independent from each other on the one hand and a cooling medium on the other hand the radiator flow through.
Ein
Diagramm einer Einrichtung zur Entlüftung des Kurbelgehäuses
Gemäß dem in
Die
Steuerung des Ventils
Bei einer Brennkraftmaschine mit einer Einrichtung zur Aufladung kann durch Zuführen des gekühlten Entlüftungsgasstromes zur Ladeluft eine Temperaturabsenkung des der Brennkraftmaschine zugeführten Gemisches erreicht bzw. eine Temperaturerhöhung vermieden werden. Wird der Entlüftungsgasstrom dem Ladedruckstrom zugeführt, ist zweckmäßigerweise eine Ventilanordnung vorzusehen, sodass ein ladeluftbedingter Druckaufbau im Kurbelgehäuseentlüftungssystem wirksam vermieden wird.at an internal combustion engine with a device for charging can by feeding of the chilled Exhaust gas flow to the charge air, a decrease in temperature of the internal combustion engine supplied mixture achieved or a temperature increase be avoided. Will the vent gas flow supplied to the boost pressure stream, is expediently to provide a valve assembly, so that a charge air-induced pressure build-up in the crankcase ventilation system effectively avoided.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004031619A DE102004031619A1 (en) | 2004-06-30 | 2004-06-30 | Device for venting air from crankcase of internal combustion engine, has heat exchanger in venting line from crankcase to suction side of engine, for removing heat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004031619A DE102004031619A1 (en) | 2004-06-30 | 2004-06-30 | Device for venting air from crankcase of internal combustion engine, has heat exchanger in venting line from crankcase to suction side of engine, for removing heat |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004031619A1 true DE102004031619A1 (en) | 2006-02-02 |
Family
ID=35529988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004031619A Withdrawn DE102004031619A1 (en) | 2004-06-30 | 2004-06-30 | Device for venting air from crankcase of internal combustion engine, has heat exchanger in venting line from crankcase to suction side of engine, for removing heat |
Country Status (1)
Country | Link |
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DE (1) | DE102004031619A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017207867A1 (en) * | 2017-05-10 | 2018-11-15 | Mahle International Gmbh | Turbocharger ventilation device |
US11867099B1 (en) | 2023-01-03 | 2024-01-09 | Caterpillar Inc. | Crankcase ventilation system architecture |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2057001A (en) * | 1933-06-09 | 1936-10-13 | Bogdany Estanislao | Condenser and separator for crankcase vapors |
US3533385A (en) * | 1968-04-04 | 1970-10-13 | John D Bennett | Crankcase ventilation system |
US3828744A (en) * | 1973-04-19 | 1974-08-13 | Hollins J R | Internal combustion engine crank case oil vapor condensing means |
FR2332424A1 (en) * | 1975-11-21 | 1977-06-17 | Semt | Oil extractor for Diesel engine supercharger - has baffles and heat exchanger in housing formed by two conical members with inlet connected to sump |
JPS61171814A (en) * | 1985-01-24 | 1986-08-02 | Fuji Heavy Ind Ltd | Blowby gas reduction device for engine |
JPH0544424A (en) * | 1991-08-13 | 1993-02-23 | Kubota Corp | Breather device of engine |
WO2002070871A2 (en) * | 2001-03-07 | 2002-09-12 | Hengst Gmbh & Co. Kg | Device for the ventilation of the crankcase of an internal combustion engine |
-
2004
- 2004-06-30 DE DE102004031619A patent/DE102004031619A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2057001A (en) * | 1933-06-09 | 1936-10-13 | Bogdany Estanislao | Condenser and separator for crankcase vapors |
US3533385A (en) * | 1968-04-04 | 1970-10-13 | John D Bennett | Crankcase ventilation system |
US3828744A (en) * | 1973-04-19 | 1974-08-13 | Hollins J R | Internal combustion engine crank case oil vapor condensing means |
FR2332424A1 (en) * | 1975-11-21 | 1977-06-17 | Semt | Oil extractor for Diesel engine supercharger - has baffles and heat exchanger in housing formed by two conical members with inlet connected to sump |
JPS61171814A (en) * | 1985-01-24 | 1986-08-02 | Fuji Heavy Ind Ltd | Blowby gas reduction device for engine |
JPH0544424A (en) * | 1991-08-13 | 1993-02-23 | Kubota Corp | Breather device of engine |
WO2002070871A2 (en) * | 2001-03-07 | 2002-09-12 | Hengst Gmbh & Co. Kg | Device for the ventilation of the crankcase of an internal combustion engine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017207867A1 (en) * | 2017-05-10 | 2018-11-15 | Mahle International Gmbh | Turbocharger ventilation device |
US11867099B1 (en) | 2023-01-03 | 2024-01-09 | Caterpillar Inc. | Crankcase ventilation system architecture |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20110701 |