DE10320857A1 - IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing - Google Patents
IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing Download PDFInfo
- Publication number
- DE10320857A1 DE10320857A1 DE10320857A DE10320857A DE10320857A1 DE 10320857 A1 DE10320857 A1 DE 10320857A1 DE 10320857 A DE10320857 A DE 10320857A DE 10320857 A DE10320857 A DE 10320857A DE 10320857 A1 DE10320857 A1 DE 10320857A1
- Authority
- DE
- Germany
- Prior art keywords
- throttle
- vent line
- crankcase
- air intake
- internal combustion
- 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- Withdrawn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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
- 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
- F01M13/023—Control valves in suction conduit
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/024—Increasing intake vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
- F02D9/1095—Rotating on a common axis, e.g. having a common shaft
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
Die Erfindung betrifft eine Brennkraftmaschine mit Kraftstoffdirekteinspritzung gemäß dem Oberbegriff des Patentanspruchs 1, insbesondere eine Brennkraftmaschine mit Fremdzündung.The The invention relates to an internal combustion engine with direct fuel injection according to the generic term of claim 1, in particular an internal combustion engine with Spark ignition.
Bei herkömmlichen Brennkraftmaschinen mit Fremdzündung wird der Differenzdruck an der Drosselklappe genutzt, um in einem Kurbelgehäuse einen Spüleffekt mit Frischluft zu erzielen. Hierzu wird am Zylinderkopf der Brennkraftmaschine eine Entlüftungsleitung angebracht, über die Blow-By-Gase aus dem Kurbelgehäuse abgesaugt werden. Somit werden die aggressiven und den Verschleiß von Kolben und Zylindern beschleunigenden Blow-By-Gase aus dem Kurbelgehäuse entfernt.at usual Internal combustion engines with spark ignition the differential pressure at the throttle is used to in one crankcase a rinse effect to achieve with fresh air. For this purpose, the cylinder head of the internal combustion engine a vent line attached, over the blow-by gases are sucked out of the crankcase. Thus Be the aggressive and the wear of pistons and cylinders accelerating blow-by gases removed from the crankcase.
Bei modernen fremdgezündeten Brennkraftmaschinen mit Kraftstoffdirekteinspritzung wird die Brennkraftmaschine im Teillastbereich in einem Schichtladungsbetrieb betrieben. In der Regel wird bei einer solchen niedrigen Last die im Luftansaugsystem vorgesehene Drosselklappe annähernd voll geöffnet, so dass bei einem solchen Betrieb kaum Saugrohrunterdruck verfügbar ist. Daher kann eine Entlüftung des Kurbelgehäuses bei drosselfreien bzw. weitgehend drosselfreien Brennkraftmaschine, beispielsweise bei Otto-Brennkraftmaschinen mit Direkteinspritzung, ohne das Vorhandensein eines notwendigen Differenzdruckes nicht vorgenommen werden.at modern spark-ignited Internal combustion engine with direct fuel injection is the internal combustion engine operated in the partial load range in a stratified charge mode. In The rule is at such a low load in the air intake system provided throttle valve approximately fully open, so that in such an operation hardly Saugrohrunterdruck is available. Therefore, a vent of the crankcase in throttle-free or largely throttle-free internal combustion engine, for example in gasoline engines with direct injection, without the presence a necessary differential pressure can not be made.
Aus
der
Aufgabe der Erfindung ist es, eine Brennkraftmaschine mit einer Kurbelgehäuseentlüftungseinrichtung derart zu gestalten, dass während einer drosselfreien Betriebsweise der Brennkraftmaschine eine Entlüftung des Kurbelgehäuses gewährleistet ist.task The invention is an internal combustion engine with a crankcase ventilation device in such a way that during a throttle-free operation of the internal combustion engine venting of the crankcase is guaranteed.
Die Aufgabe wird erfindungsgemäß durch eine Brennkraftmaschine mit den Merkmalen des Anspruchs 1 gelöst.The The object is achieved by a Internal combustion engine solved with the features of claim 1.
Die erfindungsgemäße Brennkraftmaschine zeichnet sich dadurch aus, dass der Entlüftungsleitungsdurchfluss einer Kurbelgehäuseentlüftungseinrichtung durch eine Drosselklappe der Lufteinlasseinrichtung steuerbar ist. Hierbei wird bei der erfindungsgemäßen Brennkraftmaschine im Ansaugtrakt in weiten Kennfeldbereichen genügend Unterdruck für die Kurbelgehäuseentlüftung bereitgestellt, so dass eine wirksame Entlüftung des Motorgehäuses erzielt wird.The inventive internal combustion engine records characterized in that the vent line flow a crankcase ventilation device is controllable by a throttle valve of the air intake device. This is in the internal combustion engine according to the invention in the intake in enough map areas enough Negative pressure for provided the crankcase ventilation, allowing an effective venting achieved the motor housing becomes.
Weiterhin wird eine variabel einstellbare sowie gesteuerte Unterdruckcharakteristik zu einer effektiven Be- und Entlüftung von Motorgehäusen erzielt. Mit dem zur Verfügung stehenden Unterdruck kann unabhängig von der Motorbauart eine effektive Be- und Entlüftung des Motorgehäuses durchgeführt werden, ohne die Funktion der Drosselklappe einzuschränken.Farther becomes a variably adjustable and controlled vacuum characteristic to an effective ventilation of motor housings achieved. With the available standing negative pressure can be independent be carried out by the engine type effective ventilation of the motor housing, without restricting the function of the throttle.
In einer Ausgestaltung der Erfindung ist der Durchfluss in der Entlüftungsleitung mittels einer Entlüftungsleitungsdrosselklappe steuerbar, die in Abhängigkeit von der Drosselklappenstellung der Lufteinlasseinrichtung betätigt wird. Hier durch kann die Entlüftungseinrichtung sowohl bauraumtechnisch als auch modular in einer Lufteinlasseinrichtung besser integriert werden, ohne die vorhandenen Bauteile an der Lufteinlasseinrichtung zu modifizieren.In An embodiment of the invention is the flow in the vent line by means of a vent line throttle controllable, depending on is actuated by the throttle position of the air intake device. Here through the venting device both space-wise and modular in an air intake device be better integrated, without the existing components on the air intake device to modify.
Gemäß einer weiteren Ausgestaltung der Erfindung sind sowohl die Stellung der Entlüftungsleitungsdrosselklappe als auch die Stellung der Drosselklappe der Lufteinlasseinrichtung parallel durch eine mechanische Einrichtung einstellbar. Dadurch wird eine zuverlässige Entlüftung des Kurbelgehäuses gewährleistet.According to one Another embodiment of the invention, both the position of Vent line throttle as well as the position of the throttle of the air intake device adjustable in parallel by a mechanical device. This will a reliable one vent of the crankcase guaranteed.
In einer weiteren Ausgestaltung der Erfindung ist die mechanische Einrichtung zur Einstellung der Entlüftungsleitungsdrosselklappe sowie der Drosselklappe der Lufteinlasseinrichtung in Form einer gemeinsamen Welle ausgebildet. Hierbei wird eine zuverlässige Steuerung der Entlüftungsleitungsdrosselklappe erzielt. Weiterhin ist die mechanische Einrichtung zur Einstellung der Entlüftungsleitungsdrosselklappe weniger anfällig für Schmutz und Verschleiß.In Another embodiment of the invention is the mechanical device for adjusting the vent line throttle and the throttle of the air intake device in the form of a formed common shaft. This is a reliable control the vent line throttle achieved. Furthermore, the mechanical device for adjustment the vent line throttle less vulnerable for dirt and wear.
Gemäß einer weiteren Ausgestaltung der Erfindung erfolgt die Steuerung des Durchflusses in der Entlüftungsleitung durch eine Veränderung einer Stellung der Drosselklappe der Lufteinlasseinrichtung an einer Einleitöffnung der Entlüftungsleitung. Hierdurch wird eine Steuerung des Durchflusses in der Entlüftungsleitung ohne eine mechanische Einrichtung erzielt.According to one Another embodiment of the invention, the control of the flow takes place in the vent line through a change a position of the throttle valve of the air intake device to a introduction port the vent line. hereby is a control of the flow in the vent line without a mechanical Establishment achieved.
In einer weiteren Ausgestaltung der Erfindung ist der Durchfluss in der Entlüftungsleitung durch ein Endteil der Drosselklappe der Lufteinlasseinrichtung steuerbar. Dadurch kann eine Durchflussvariation an einer Einleitöffnung der Entlüftungsleitung innerhalb des direkten Einflussbereiches der Drosselklappe bewerkstelligt werden. Somit wird eine direkte Abhängigkeit bzw. Koppelung des Durchflusses in der Entlüf tungsleitung von einer Stellung der Drosselklappe der Lufteinlasseinrichtung ohne eine mechanische Verbindung erzielt.In a further embodiment of the invention, the flow in the vent line through an end portion of the throttle valve of the air inlet device is controllable. This can be a through Flux variation be accomplished at an inlet opening of the vent line within the direct range of influence of the throttle valve. Thus, a direct dependence or coupling of the flow in the breather line is achieved by a position of the throttle valve of the air inlet device without a mechanical connection.
Weitere Merkmale und Merkmalskombinationen ergeben sich aus der Beschreibung. Konkrete Ausführungsbeispiele der Erfindung sind anhand der Zeichnungen vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Further Features and combinations of features result from the description. Specific embodiments The invention are shown in simplified form with reference to the drawings and explained in more detail in the following description. Show it:
In
bekannter Weise rotiert in einem Kurbelraum des Kurbelgehäuses eine
Kurbelwelle, an der ein Pleuel angebracht ist. Der nicht dargestellte
Pleuel ist mit einem nicht dargestellten Kolben verbunden, der in
einem Zylinder der Brennkraftmaschine eine oszillierende Bewegung
ausführt.
Zum Zylinderkopf der Brennkraftmaschine führt ein Ansaugsystem
Die
Entlüftungseinrichtung
Gemäß einer
zweiten Ausführungsform
der Erfindung wird der Durchfluss in der Entlüftungsleitung
Gemäß einer
weiteren Ausführungsform
der erfindungsgemäßen Entlüftungseinrichtung
Gemäß einer
weiteren vorteilhaften Ausführungsform
der erfindungsgemäßen Entlüftungseinrichtung
Im
Teillastbetrieb der Brennkraftmaschine
Des
Weiteren wird in sämtlichen
Betriebszuständen
der Brennkraftmaschine
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10320857A DE10320857A1 (en) | 2003-05-09 | 2003-05-09 | IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10320857A DE10320857A1 (en) | 2003-05-09 | 2003-05-09 | IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10320857A1 true DE10320857A1 (en) | 2004-11-25 |
Family
ID=33394389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10320857A Withdrawn DE10320857A1 (en) | 2003-05-09 | 2003-05-09 | IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing |
Country Status (1)
Country | Link |
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DE (1) | DE10320857A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005020442A1 (en) * | 2005-04-29 | 2006-11-02 | Mahle International Gmbh | Ventilation device for crankcase of internal combustion engine e.g. diesel engine, has stop valve adjustable between opening and blocking positions, and bypass provided for by-passing valve adjusted into blocking position |
WO2007006441A1 (en) * | 2005-07-07 | 2007-01-18 | Gm Global Technology Operations, Inc. | Device for generating a vacuum in a motor vehicle |
WO2008068320A1 (en) * | 2006-12-07 | 2008-06-12 | Mahle International Gmbh | Crank case ventilator |
DE102010019931A1 (en) * | 2010-05-08 | 2011-11-10 | Volkswagen Ag | Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas |
DE102014014713A1 (en) | 2014-10-02 | 2016-04-07 | Daimler Ag | Ventilation device for venting a crankcase of an internal combustion engine |
EP3301290A1 (en) * | 2016-09-29 | 2018-04-04 | Pierburg GmbH | Channel system for a combustion engine |
US20180266309A1 (en) * | 2017-03-20 | 2018-09-20 | Advance Flow Engineering, Inc. | Vent insert |
JP2018173010A (en) * | 2017-03-31 | 2018-11-08 | 日立建機株式会社 | Blow-by gas recirculation device for construction machine |
-
2003
- 2003-05-09 DE DE10320857A patent/DE10320857A1/en not_active Withdrawn
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005020442B4 (en) * | 2005-04-29 | 2018-01-25 | Mahle International Gmbh | Venting device for a crankcase of an internal combustion engine |
DE102005020442A1 (en) * | 2005-04-29 | 2006-11-02 | Mahle International Gmbh | Ventilation device for crankcase of internal combustion engine e.g. diesel engine, has stop valve adjustable between opening and blocking positions, and bypass provided for by-passing valve adjusted into blocking position |
WO2007006441A1 (en) * | 2005-07-07 | 2007-01-18 | Gm Global Technology Operations, Inc. | Device for generating a vacuum in a motor vehicle |
CN101258310B (en) * | 2005-07-07 | 2012-02-01 | Gm全球科技运作股份有限公司 | Device for producing partial vacuum in a motor vehicle |
US8261716B2 (en) | 2005-07-07 | 2012-09-11 | GM Global Technology Operations LLC | Device for generating a vacuum in a motor vehicle |
WO2008068320A1 (en) * | 2006-12-07 | 2008-06-12 | Mahle International Gmbh | Crank case ventilator |
US8393315B2 (en) | 2006-12-07 | 2013-03-12 | Mahle International Gmbh | Crank case ventilator |
DE102010019931A1 (en) * | 2010-05-08 | 2011-11-10 | Volkswagen Ag | Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas |
DE102014014713A1 (en) | 2014-10-02 | 2016-04-07 | Daimler Ag | Ventilation device for venting a crankcase of an internal combustion engine |
EP3301290A1 (en) * | 2016-09-29 | 2018-04-04 | Pierburg GmbH | Channel system for a combustion engine |
US20180266309A1 (en) * | 2017-03-20 | 2018-09-20 | Advance Flow Engineering, Inc. | Vent insert |
US10648404B2 (en) * | 2017-03-20 | 2020-05-12 | Advanced Flow Engineering, Inc. | Vent insert |
US11125150B2 (en) | 2017-03-20 | 2021-09-21 | Advanced Flow Engineering, Inc. | Vent insert |
US11603792B2 (en) | 2017-03-20 | 2023-03-14 | Advanced Flow Engineering Inc. | Vent insert |
JP2018173010A (en) * | 2017-03-31 | 2018-11-08 | 日立建機株式会社 | Blow-by gas recirculation device for construction machine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8120 | Willingness to grant licences paragraph 23 | ||
8141 | Disposal/no request for examination |