EP1411216A1 - Ventilation de carter moteur - Google Patents

Ventilation de carter moteur Download PDF

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Publication number
EP1411216A1
EP1411216A1 EP03021121A EP03021121A EP1411216A1 EP 1411216 A1 EP1411216 A1 EP 1411216A1 EP 03021121 A EP03021121 A EP 03021121A EP 03021121 A EP03021121 A EP 03021121A EP 1411216 A1 EP1411216 A1 EP 1411216A1
Authority
EP
European Patent Office
Prior art keywords
line
throttle
valve
crankcase
pressure control
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.)
Granted
Application number
EP03021121A
Other languages
German (de)
English (en)
Other versions
EP1411216B1 (fr
EP1411216B8 (fr
Inventor
Heiko Bock
Christoph Müller
Uwe Schirmer
Michael Wagenplast
Frank Weinert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1411216A1 publication Critical patent/EP1411216A1/fr
Publication of EP1411216B1 publication Critical patent/EP1411216B1/fr
Application granted granted Critical
Publication of EP1411216B8 publication Critical patent/EP1411216B8/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a Kurbelgephase- and ventilation for a reciprocating internal combustion engine.
  • crankcase breather for a reciprocating internal combustion engine known with an oil separator
  • an intake system of the reciprocating internal combustion engine via a Vent line is connected, which has a throttle and downstream of a throttle in an intake passage empties.
  • a ventilation line for the crankcase branches from the intake manifold upstream of the throttle.
  • the venting line is a first, in the direction of the suction line provided closing check valve.
  • Oil separator is a centrifugal oil separator and the throttle in the vent line is a dynamic throttle.
  • the object of the invention is therefore, a Kurbelgekorusebe- and Ventilation of the type mentioned above to create the avoids this disadvantage and ensures in particular that both too low and too high a pressure safely avoided in the crankcase.
  • the invention solves this problem by providing a Kurbelgephase- and ventilation with the features of Claim 1 or 2.
  • the downstream of the oil separator arranged vent line according to claim 1 to a pressure control valve from which the blow-by gas in Idle or part load operation via one of the pressure control valve branching first vent line and a throttle in one downstream of the throttle lying line section the intake pipe is feasible, the degree of opening the pressure control valve by a throttle controlled or regulated which is in one of the intake passage section upstream the throttle branch and into a line section between pressure valve and suction line section leading line is housed.
  • the downstream of the oil separator arranged Vent line according to claim 2 to a pressure control valve.
  • the blow-by gas via a branching off from the pressure control valve first vent line in a downstream of the throttle Line section of the intake duct feasible, the degree of opening the pressure regulating valve by an electrical control, which is in communication with the pressure regulating valve, is controllable or controllable.
  • a Ventilation line provided for ventilation of the crankcase, which of the between throttle and air mass meter branched off portion of the intake manifold, and which via a housed in the ventilation line Throttle to the two cylinder heads or cylinder head covers leads.
  • a targeted negative pressure in the crankcase and cylinder head is generated in an advantageous manner by targeted gas guidance using valves (here: pressure control valve), throttles and check valves.
  • valves here: pressure control valve
  • throttles and check valves advantageously prevents a piston ring flutter
  • the shaft seals are secured against oil leakage.
  • KGH ventilation guidance from the cylinder head to the crankcase
  • Due to the prevailing differential pressure between KGH and cylinder head can be additionally supported by a targeted ventilation suction or drainage of the oil from the cylinder head into the oil pan and the lower part of KGH. In oblique mounting positions of the engine and in mountain, valley or cornering, for example, in off-road vehicles, a targeted oil drainage is guaranteed.
  • a reciprocating internal combustion engine has in the exemplary embodiment 1, two rows of cylinders arranged in a V-shape with the cylinder head cover 2. 3 shown on the left-hand side and on the left-hand side.
  • An intake system of a reciprocating internal combustion engine comprises essentially an air filter 5, an intake manifold 6 with the Ansaug effetsabismeen 10,12, an air mass meter 7, a throttle valve 11 and a suction pipe with crankcase 13, which lies between the rows of cylinders and not shown from the intake manifold to the lead individual cylinders.
  • the resulting in the crankcase 13 blow-by gas is extracted via a channel not shown directly at the point of origin 13. This process is shown in more detail in FIG.
  • the blow-by gas is supplied via a channel 19 to an oil separator 20, preferably designed as Zentrifugalölabscheider, in which the oil / air mixture is separated. After cleaning and oil separation passes the crankcase or blow-by gas via a vent line 18 and a designated pressure control valve 17 into the suction line 6.
  • the pressure control valve 17 may for example be designed pneumatically to control the pressure in the crankcase can.
  • the blow-by gas is essentially by means of the vent line 21 via a downstream static throttle 15 downstream of the throttle valve 11 in the intake passage section 12 initiated.
  • the throttle 15 is dimensioned that they are at the partial pressure in the existing vacuum in the Crankcase 13 or in the intake manifold 1, the amount of vent gas limited.
  • the vent line 21 thus serves in essential for crankcase ventilation in partial load operation.
  • the two throttles 9.15 are preferably designed as static throttles.
  • a vent line 16 In a vent line 16, upstream of the throttle 11 opens into the suction line section 10 is located there is a pressure control valve 17 downstream check valve 8.
  • the check valve 8 In partial load operation of reciprocating internal combustion engine is the check valve 8 due to the pressure conditions closed. In full load operation prevails in the line section 10 of the intake pipe 6 upstream of the throttle valve 11 approximately the same pressure level as in the line section 12 downstream of the throttle valve 11. At full load opens the check valve 8 due to the higher Underpressure in the crankcase and the pressure drop at the static throttle 15. As a result, the vent line 16 especially effective at full load.
  • 8 may also be part of the blow-by gas on the one hand via the line 21 and the throttle 15, for other via the throttle 9 (here: contrary to the normal ventilation direction, i.e. Blow-by gas flows from line 21 Line 14 back into the line section 10 of the intake pipe 6) of the intake pipe or the crankcase 13 is supplied become.
  • a ventilation duct 23 branches upstream of the throttle valve 11 and downstream of the air mass meter 7 of the Section 10 of the intake manifold 6 and opens via a second throttle 22, which preferably as a static throttle is formed, and from this further into the two cylinder heads or cylinder head covers 2, 3.
  • a second throttle 22 which preferably as a static throttle is formed
  • This Valve 24 prevents unwanted suction of the blow-by gas from the cylinder head.
  • the pressure in the crankcase can be controlled.
  • the targeted fresh air gas at the ventilation from the cylinder head to the crankcase of the contact the oil with hot blow-by gas reduces and thus the aging behavior of the oil positively influenced.
  • Fig. 2 shows a variant of the Kurbelgekorusebe- and ventilation of Fig. 1, wherein for clarity, the same reference numerals are used for functionally identical or equivalent components and insofar reference can be made to the above description of FIG.
  • the blow-by gas via a branching off from the pressure control valve 17 first vent line 21 in a downstream of the throttle valve 11 lying pipe section 12 of the intake 6 is feasible.
  • the blow-by gas is essentially via the branched off from the pressure valve 17 second vent line 16 in the upstream of the throttle valve portion 17 located 10 of the intake 6 can be introduced, with a part of the blow-by gas over the first vent line 21 branching off from the pressure control valve 17 can be introduced into the intake line 6.
  • the degree of opening of the pressure regulating valve 17 can be controlled or regulated by an electrical control 25, which is connected to the pressure regulating valve 17.
  • the pressure regulating valve 17 itself can be designed, for example, pneumatically, hydraulically, mechanically (eg rotationally-axially converting system) or electrically (eg lifting magnet) in order to be able to regulate the pressure in the crankcase.
  • the Kurbelgepurbe- and ventilation of Fig. 2 differs from that of Fig. 1 in that can be dispensed with by the electrical control 25 of the pressure control valve 17 to the throttle 15 in the vent line 21 and the vent line 14 with the throttle 9.
  • FIG. 3 the internal engine extraction of the blow-by gas shown.
  • the resulting blow-by gas is in the crankcase sucked off via the suction channel 30.
  • the channel 30 can connect to each cylinder chamber of the internal combustion engine respectively.
  • the Suction channel 30 by way of example by a balance shaft bore given with a specially constructed tube, like this in Fig. 3 is shown schematically.
  • the suction channel 30th is for example parallel to the crankshaft, he can but also be arranged differently.
  • the suction channel 30 opens via a connection 31 shown in a schematic manner in a section 32 of the suction channel, which is a connection produced from the crankcase to the cylinder heads. Between the suction channel 30 and the portion 32 may additionally a siphon and / or oil separator (not shown) his.
  • the section 32 opens into the oil separator 20 (centrifuge). The oil separator separates this Oil / air mixture or the blow-by gas / oil mixture in its components and introduces the oil via the oil return passage 33 in the lower part of the crankcase or in the oil pan 34. The oil separated blow-by gas is via the vent line 18 sucked off.
  • the oil can additionally by the prevailing negative pressure in the crankcase via the return line 35 in the lower part of the crankcase 13 and in the oil pan 34 is sucked off or drained.
  • the return line 35 can also in the crankcase and / or in be integrated at least one cylinder head.
  • the suction channel 32 and the oil return passage 33 are the remaining valve train foreclosed. This means that both channels 32, 33 point no connection to the cylinder head.
  • FIG. 4 shows by way of example an embodiment of a pressure-compensated pressure regulating valve, as can be used, for example, in the embodiment in FIG.
  • the pressure regulating valve 17 essentially contains, in addition to the line connections for the lines 14, 16 (not shown), 21 and 18, a membrane 36, a spring 37 and a sealing seat 38.
  • the pressure regulation of the pressure regulating valve 17 takes place through the line connection 14.
  • the blow-by gas is supplied via the vent line 18 to the pressure control valve 17, as shown in Fig.
  • Fig. 5 shows another embodiment of a pressure-controlled, pneumatically operated pressure control valve 17, which, for example, in the embodiment of the invention 2 can be used according to FIG.
  • the pressure control valve 17 includes in addition to the connections for the lines 16 (not 18 and 21 also show a sealing seat 38, a guide 39 for guiding the piston-driven pressure control valve 17, a piston 40 and a pneumatically operated Pressure control connection 41 to the cylinder head or crankcase.
  • the in Fig. 2 shown vent line 16 also omitted.
  • valves shown in Fig. 4 and 5 are familiar to the expert and therefore need not be explained in more detail become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP20030021121 2002-10-15 2003-09-20 Ventilation de carter moteur Expired - Lifetime EP1411216B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10247934 2002-10-15
DE2002147934 DE10247934A1 (de) 2002-10-15 2002-10-15 Kurbelgehäuseentlüftung

Publications (3)

Publication Number Publication Date
EP1411216A1 true EP1411216A1 (fr) 2004-04-21
EP1411216B1 EP1411216B1 (fr) 2007-10-31
EP1411216B8 EP1411216B8 (fr) 2008-01-23

Family

ID=32038684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030021121 Expired - Lifetime EP1411216B8 (fr) 2002-10-15 2003-09-20 Ventilation de carter moteur

Country Status (2)

Country Link
EP (1) EP1411216B8 (fr)
DE (2) DE10247934A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005008036A2 (fr) * 2003-07-11 2005-01-27 Daimlerchrysler Ag Procede et dispositif de purge du carter de vilebrequin d'un moteur a combustion interne
DE102006058072A1 (de) * 2006-12-07 2008-06-19 Mahle International Gmbh Kurbelgehäuseentlüftung
DE102007063423A1 (de) 2007-12-18 2009-06-25 Volkswagen Ag Ent- und Belüftungseinrichtung des Zylinderkurbelgehäuses einer Hubkolben-Brennkraftmaschine
DE102008061059A1 (de) * 2008-12-08 2010-06-17 Audi Ag Verfahren zum Betreiben einer Brennkraftmaschine
EP3101243A1 (fr) * 2015-06-03 2016-12-07 MAN Truck & Bus AG Generation de depression dans un boitier de manivelle pour la reduction du nombre de particules

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014014713A1 (de) 2014-10-02 2016-04-07 Daimler Ag Entlüftungseinrichtung zum Entlüften eines Kurbelgehäuses einer Verbrennungskraftmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709910A1 (de) * 1997-03-11 1998-09-24 Daimler Benz Ag Kurbelgehäuseentlüftung für eine Brennkraftmaschine
EP0896133A1 (fr) * 1997-08-06 1999-02-10 Adam Opel Ag Ventilation du carter moteur
DE10049429A1 (de) * 2000-10-06 2002-04-11 Volkswagen Ag Brennkraftmaschine mit Zylinderkurbelgehäuse-Entlüftung
WO2003042513A1 (fr) * 2001-11-13 2003-05-22 Hengst Gmbh & Co. Kg Dispositif pour l'aeration du carter de vilebrequin d'un moteur a combustion interne
EP1327753A1 (fr) * 2001-12-24 2003-07-16 Visteon Global Technologies, Inc. Systeme de degasage pour un moteur à combustion interne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069192A (en) * 1989-10-24 1991-12-03 Nissan Motor Company, Ltd. Internal combustion engine with crankcase ventilation system
DE4237128A1 (de) * 1992-11-03 1994-01-27 Bayerische Motoren Werke Ag Kurbelgehäuseentlüftung mit einer Zentrifuge
EP0730086B1 (fr) * 1995-03-01 1998-04-22 Knecht Filterwerke Gmbh Séparateur cyclone pour la ventilation de carter d'un moteur à combustion interne avec une soupape de ventilation
DE19918311A1 (de) * 1999-04-22 2000-11-02 Hengst Walter Gmbh & Co Kg Verfahren zur Entölung von Kurbelgehäuseentlüftungsgasen und Vorrichtungen zur Durchführung des Verfahrens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709910A1 (de) * 1997-03-11 1998-09-24 Daimler Benz Ag Kurbelgehäuseentlüftung für eine Brennkraftmaschine
EP0896133A1 (fr) * 1997-08-06 1999-02-10 Adam Opel Ag Ventilation du carter moteur
DE10049429A1 (de) * 2000-10-06 2002-04-11 Volkswagen Ag Brennkraftmaschine mit Zylinderkurbelgehäuse-Entlüftung
WO2003042513A1 (fr) * 2001-11-13 2003-05-22 Hengst Gmbh & Co. Kg Dispositif pour l'aeration du carter de vilebrequin d'un moteur a combustion interne
EP1327753A1 (fr) * 2001-12-24 2003-07-16 Visteon Global Technologies, Inc. Systeme de degasage pour un moteur à combustion interne

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005008036A2 (fr) * 2003-07-11 2005-01-27 Daimlerchrysler Ag Procede et dispositif de purge du carter de vilebrequin d'un moteur a combustion interne
WO2005008036A3 (fr) * 2003-07-11 2005-05-06 Daimler Chrysler Ag Procede et dispositif de purge du carter de vilebrequin d'un moteur a combustion interne
US7275527B2 (en) 2003-07-11 2007-10-02 Daimlerchrysler Ag Method and apparatus for venting a crankcase of an internal combustion engine
DE102006058072A1 (de) * 2006-12-07 2008-06-19 Mahle International Gmbh Kurbelgehäuseentlüftung
US8393315B2 (en) 2006-12-07 2013-03-12 Mahle International Gmbh Crank case ventilator
DE102007063423A1 (de) 2007-12-18 2009-06-25 Volkswagen Ag Ent- und Belüftungseinrichtung des Zylinderkurbelgehäuses einer Hubkolben-Brennkraftmaschine
DE102008061059A1 (de) * 2008-12-08 2010-06-17 Audi Ag Verfahren zum Betreiben einer Brennkraftmaschine
EP3101243A1 (fr) * 2015-06-03 2016-12-07 MAN Truck & Bus AG Generation de depression dans un boitier de manivelle pour la reduction du nombre de particules
CN106246287A (zh) * 2015-06-03 2016-12-21 曼卡车和巴士股份公司 为了减少颗粒数量在曲轴箱中的负压产生
RU2721069C2 (ru) * 2015-06-03 2020-05-15 Ман Трак Унд Бас Аг Создание разрежения в картере двигателя для уменьшения количества частиц

Also Published As

Publication number Publication date
EP1411216B1 (fr) 2007-10-31
DE10247934A1 (de) 2004-04-29
EP1411216B8 (fr) 2008-01-23
DE50308489D1 (de) 2007-12-13

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