EP1447531A1 - Kurbelgehäuseentlüftungsventil mit integriertem Zyklonabschneider - Google Patents
Kurbelgehäuseentlüftungsventil mit integriertem Zyklonabschneider Download PDFInfo
- Publication number
- EP1447531A1 EP1447531A1 EP04000598A EP04000598A EP1447531A1 EP 1447531 A1 EP1447531 A1 EP 1447531A1 EP 04000598 A EP04000598 A EP 04000598A EP 04000598 A EP04000598 A EP 04000598A EP 1447531 A1 EP1447531 A1 EP 1447531A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- cyclone separator
- partition
- valve chamber
- membrane
- 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
Links
Images
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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- 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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
- F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
Definitions
- the invention relates to a crankcase ventilation valve integrated cyclone separator.
- a crankcase ventilation valve integrated cyclone separator is, for example known from DE 196 04 708 A1.
- the piston rings exhaust, partially or unburned Fuel, etc. So that these partly environmentally harmful substances not e.g. get into the environment through shaft seals, becomes a negative pressure in the crankcase compared to the engine environment maintained and the crankcase ventilated.
- the exhausted crankcase gas is added to the intake air and so the engine combustion fed.
- crankcase gas Engine lubricating oil is contained in the crankcase gas.
- the crankcase gas passes through First an oil separator, which is almost oil-free at its outlet Provides gas and the separated oil back to the Oil sump feeds the engine.
- a pressure regulator is connected downstream of the oil separator, which limits the pressure in the crankcase to a minimum value. This avoids, for example, that at strong negative pressure in the crankcase over shaft seals or Piston rings sucked additional substances into the crankcase become.
- the object of the invention is a crankcase ventilation valve to be specified with integrated pressure control and oil separation unit, the few joints to be sealed and a compact Has construction.
- crankcase ventilation valve with the features of claim 1.
- Thereafter contains a crankcase ventilation valve a valve chamber, the one side of a membrane and the opposite Side is delimited by a partition.
- the partition separates the valve chamber from a cyclone separator.
- the cyclone separator has a gas inlet connected to a crankcase can be connected.
- the cyclone separator has a gas outlet on that via a guide channel with the valve chamber connected is.
- the cyclone separator is located near the gas outlet an oil outlet that can be connected to an oil return.
- a suction channel penetrates the cyclone separator and is at his one end can be connected to a vacuum source. With his the other end projects to a valve seat Suction channel in the valve chamber.
- the valve seat works with the Membrane together, the membrane being spring-loaded in the opening direction is.
- the entire valve is in one housing, for example can be manufactured as a one-piece injection molded part.
- the Partition can be retrofitted into the injection molded part.
- the tightness requirement on the partition used is low, there is hardly any pressure difference between the cyclone separator and the valve chamber prevails.
- the only joint with tightness requirements towards the environment is created by attaching the Membrane on one side of the valve chamber. Because essential Parts of the valve can be integrated in a single component, the total number of individual parts of the valve is reduced.
- the Arrangement of cyclone separator, valve chamber and suction channel leads to geometrically simple components and a small construction volume of the entire valve.
- the valve has a essentially hollow cone-shaped cyclone separator.
- the Cyclone separator is arranged on the valve chamber in such a way that the cone base faces the valve chamber and the central longitudinal axis of the cone essentially perpendicular to the membrane stands. This results in a geometrically further simplified Shape of the valve.
- the cyclone separator with molded Valve chamber and molded suction channel can be injection molded can be produced in a straightforward manner.
- the suction channel is essentially arranged coaxially to the central longitudinal axis of the cone. So the gas flow entering the cyclone separator can be unhindered encircle the suction channel, resulting in effective oil separation leads in the cyclone.
- the suction channel is coaxial arranged within the guide channel, the partition Has openings that are fluidly connected to the guide channel are.
- the coaxial arrangement of the guide and suction channels is space-saving and simplifies the manufacture of the valve further.
- the openings in the partition for the guide channel are easy to implement in terms of production technology.
- the Guide channel is delimited by a tube, which at its the valve chamber facing end face connected to the partition is.
- the partition and the tube form a single component, which is easy to manufacture and handle and when assembled of the valve can easily be inserted into the housing. This further reduces the number of individual parts of the valve.
- Another embodiment of the invention provides a valve seat Comprehensive coil spring, on the one hand, the spring load the membrane accomplished and on the other hand supported on the partition. After installing the valve the partition is held in its installed position by the spring, which is why no additional measures to attach the Partition in the valve are necessary.
- Another embodiment of the invention looks between the outer edge of the partition and the valve housing a labyrinth seal in front.
- the labyrinth seal can be used at Manufacture of the components easily realized grooves and tongues be carried out when assembling the valve into each other to grab.
- the sealing effect of the labyrinth seal is created during the first operating phase of the crankcase ventilation valve automatically, if oil-containing gases from the cyclone separator penetrate the labyrinth seal and the introduced oil particles the labyrinthine gap of the seal permanently enforce. This measure creates additional sealing rings or sealant avoided.
- the crankcase ventilation valve shown in Fig. 1 has a conical or funnel-shaped main components Cyclone separator 2 and a pressure regulator 4.
- the wall or the housing 28 of the cyclone separator is in the region of its end from a gas inlet 6 and in the area of its narrowed end pierced by an oil outlet 8.
- the gas inlet 6 opens in a molded connector 10 on which a connecting line 12 is pushed onto the crankcase of an engine (not shown) leads.
- the oil outlet 8 opens into one Connector 14, on which a connecting line 16 is plugged that leads to the oil sump of the engine.
- the cyclone separator 2 is coaxial to its central longitudinal axis 5 from a tubular Suction channel 14 penetrated, one end 19 of which the housing 28 extends out and opens into a nozzle 17.
- a connecting line 18 is plugged onto this leads to the intake manifold (not shown) of the engine.
- the suction channel 14 tapers conically to a valve seat 24.
- the tapered channel section follows a radially extending stop shoulder 22 in the not tapered channel section over.
- the stop shoulder 22 is coaxial to the central longitudinal axis 5 and in a perpendicular to arranged this level.
- At the narrow end of the Housing 28 is one penetrated by suction channel 14 and with it Opening 29 lying on the edge of its outer peripheral surface available.
- the wide end of the cyclone separator 2 is of a cylindrical shape Longitudinal section 31 formed, the front of a housing cover is closed.
- a partition 32 which is transverse to the central longitudinal axis 5 and over the entire inner cross section of the longitudinal section extends.
- the partition 32 is at an axial distance arranged to the housing cover 56.
- the of the housing 28, the Partition 32 and the housing cover bounded space forms a Valve chamber 30.
- the edge of the opening 33 is supported on the stop shoulder 22, the edge of the circular partition 32 on an annular flange 37, which extends from the inner wall of the longitudinal section 31 extends radially inwards.
- the tube 34 On the side facing the end 19 of the suction channel 14 Partition 32 is a tube 34 with one end 36 thereof formed.
- the tube 34 includes the suction channel 14 coaxially and with a radial distance, the between the suction channel 14 and the Pipe existing annular space in the following with guide channel 40 designated further channel forms.
- the guide channel 40 is on its end facing the partition via openings 44 in the partition 32 fluidly connected to the valve chamber 30.
- the tube 34 ends with an axial distance in front of the opening 29 of the Housing 20.
- the end face facing away from the partition 32 of the tube 34 and the wall 38 of the suction channel 14 existing Ring opening forms a gas outlet 42.
- Circular springs 48 concentric with the central longitudinal axis 5 molded.
- On the ring flange 37 are corresponding to circumferential grooves 50 are formed on the springs 48, into which the springs 48 intervene.
- the springs 48 and grooves 50 act in the manner of a Labyrinth seal together and seal the cyclone separator 2 from the valve chamber 30.
- An elastic is located on the end face of the longitudinal section 52 circular membrane 54 with its edge area.
- the housing cover 56 which is provided with recesses 58 on the housing 28 Engages latching lugs 60, the membrane 54 is on the End face 52 mechanically firmly and sealingly pressed.
- the Housing cover 56 has an opening 62 which the between Diaphragm 54 and housing cover 56 existing gap space with the Atmosphere connects.
- a coil spring 64 resiliently acts on the membrane 54 Direction away from the valve seat 24, that is in the opening direction of the Valve.
- the coil spring 64 is based on this Partition 32 and presses it against the stop shoulder 22. At the same time through the coil spring 64 Springs 48 pressed into the grooves 50.
- crankcase ventilation valve works is The following: The one coming from the crankcase flows in the direction of 100 and stream of crankcase gas interspersed with oil particles into the cyclone separator 2. In a spiral path the oil-gas mixture flows on the inner wall 102 of the cyclone separator towards the gas outlet 42 and orbits that Tube 34. This is due to the centrifugal forces that occur on the inner wall 102 of the cyclone separator 2 oil droplets down along the inner wall 102 to the oil outlet 8 stream.
- crankcase ventilation valve During the first phase of operation of the crankcase ventilation valve flows in crankcase gas carrying oil particles Part of the labyrinth seal, i.e. the gaps between the springs 48 and the grooves 50. The gaps are thereby permanently added by oil, so that from now on no oil-carrying gas from the cyclone separator 2 through the labyrinth seal can penetrate into the valve chamber 30.
- the oil separated on the inner wall 102 flows in the direction 103 back to the engine oil sump. Because in the valve chamber 30 a slightly lower pressure than in the oil sump prevails, the gas largely freed from oil takes the way along direction 104. It flows through the guide channel 40 in the valve chamber 30. From the intake manifold of the engine, not shown ago the suction channel 14 is subjected to negative pressure, so that the gas from the valve chamber 30 in the direction 106 through the Valve seat 24 flows out of the valve chamber 30 and thus the intake air of the motor, not shown, is fed again.
- the coil spring 64 is dimensioned such that when Exceeding a certain pressure difference between the Valve chamber 30 and the suction channel 14, the membrane 54 in Direction 108 seals against the valve seat 24 and the Closes opening 110 of suction channel 14.
- the damping of the Membrane 54 when the suction channel 14 is closed or released can be predetermined by the cross section of the opening 62. Thereby namely the amount of air is determined, the maximum per unit time through the opening 62 into the space between the membrane 54 and housing cover 56 in or out of this can.
- Fig. 2 shows a perspective view from the Partition 32 and the tube 34 composite component with the Openings 44 through its opening 33 in the assembled state the tapered end with the valve seat 24 of the suction channel 14 protrudes.
- the partition wall 32 are circular in the area of the edge 46 thereof circumferential springs 48 formed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
- Fig. 1
- einen Schnitt durch ein Kurbelgehäuseentlüftungsventil in einer schematischen Prinzipdarstellung,
- Fig. 2
- ein aus einer Trennwand und einem daran angesetzten Rohr bestehendes Bauteil des Ventils von Fig. 1 in einer perspektivischen Prinzipdarstellung.
- 2
- Zyklonabscheider
- 3
- Kegelbasis
- 4
- Druckregler
- 5
- Mittellängsachse
- 6
- Gaseinlass
- 8
- Ölauslass
- 10
- Stutzen
- 12
- Anschlussleitung
- 14
- Saugkanal
- 16
- Anschlussleitung
- 17
- Stutzen
- 18
- Anschlussleitung
- 19
- Ende
- 20
- Ende
- 22
- Anschlagschulter
- 24
- Ventilsitz
- 26
- Umfang
- 28
- Gehäuse
- 29
- Öffnung
- 30
- Ventilkammer
- 31
- Längsabschnitt
- 32
- Trennwand
- 33
- Öffnung
- 34
- Rohr
- 36
- Stirnseite
- 37
- Ringflansch
- 38
- Wand
- 40
- Leitkanal
- 42
- Gasauslass
- 44
- Durchbrechung
- 46
- Rand
- 48
- Feder
- 50
- Nut
- 52
- Stirnseite
- 54
- Membran
- 56
- Gehäusedeckel
- 58
- Aussparung
- 60
- Rastnase
- 62
- Öffnung
- 64
- Schraubenfeder
- 100
- Richtung
- 102
- Innenwandung
- 103,104,106,108
- Richtung
Claims (7)
- Kurbelgehäuseentlüftungsventil mit integriertem Zyklonabscheider (2) mit folgenden Merkmalen:Eine Ventilkammer (30) ist an einer Seite von einer Membran (54) und an der gegenüberliegenden Seite von einer Trennwand (32) begrenzt, die die Ventilkammer (30) von dem Zyklonabscheider (2) trennt,der Zyklonabscheider (2) weist einen an ein Kurbelgehäuse anschließbaren Gaseinlass (6), einen über einen Leitkanal (40) mit der Ventilkammer (30) verbundenen Gasauslass (42) und nahe dem Gasauslass einen an einen Ölrücklauf anschließbaren Ölauslass (8) auf,ein an seinem einen Ende an eine Unterdruckquelle anschließbarer Saugkanal (14) durchdringt den Zyklonabscheider (2) und ragt mit seinem zu einem Ventilsitz (24) ausgebildeten anderen Ende in die Ventilkammer (30),der Ventilsitz (24) wirkt mit der in Öffnungsrichtung federbelasteten Membran (54) zusammen.
- Ventil nach Anspruch 1, gekennzeichnet durch einen im wesentlichen hohlkegelförmigen Zyklonabscheider (2), wobei dessen Kegelbasis (3) der Ventilkammer (30) zugewandt ist.
- Ventil nach Anspruch 2, dadurch gekennzeichnet, dass der Saugkanal (14) im wesentlichen koaxial zur Mittellängsachse (5) des Zyklonabscheiders (2) angeordnet ist.
- Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Saugkanal (14) koaxial innerhalb des Leitkanals (40) angeordnet ist und die Trennwand Durchbrechungen (44) für den Leitkanal aufweist, die mit dem Leitkanal (40) fluidisch verbunden sind.
- Ventil nach Anspruch 4, dadurch gekennzeichnet, dass der Leitkanal (40) von einem Rohr umgrenzt ist, das an seiner der Ventilkammer (30) zugewandten Stirnseite mit der Trennwand verbunden ist.
- Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Federbelastung der Membran (54) durch eine den Ventilsitz (24) umfassende Schraubenfeder (64) bewerkstelligt ist, die sich an der Trennwand (32) abstützt.
- Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem äußeren Rand der Trennwand (32) und dem Ventilgehäuse eine Labyrinthdichtung vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10301028 | 2003-01-14 | ||
DE10301028A DE10301028A1 (de) | 2003-01-14 | 2003-01-14 | Kurbelgehäuseentlüftungsventil mit integriertem Zyklonabscheider |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1447531A1 true EP1447531A1 (de) | 2004-08-18 |
EP1447531B1 EP1447531B1 (de) | 2006-12-13 |
Family
ID=32602517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04000598A Expired - Lifetime EP1447531B1 (de) | 2003-01-14 | 2004-01-14 | Kurbelgehäuseentlüftungsventil mit integriertem Zyklonabschneider |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1447531B1 (de) |
AT (1) | ATE348249T1 (de) |
DE (2) | DE10301028A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007020084A3 (de) * | 2005-08-17 | 2007-05-10 | Hengst Gmbh & Co Kg | Vorrichtung zum entlüften des kurbelgehäuses einer brennkraftmaschine und zum entölen des kurbelgehäuseentlüftungsgases |
DE102004033677B4 (de) * | 2004-07-09 | 2016-03-03 | Volkswagen Ag | Kombination aus einem Druckregelventil und einem Ölabscheider für Entlüftungsgase eines Kurbelgehäuses |
CN108167046A (zh) * | 2017-12-27 | 2018-06-15 | 天津惠德汽车进气系统股份有限公司 | 一种新型柴油机呼吸器 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010027785B4 (de) * | 2010-04-15 | 2020-12-03 | Hengst Se | Ölnebelabscheider mit einem Gehäuse mit abnehmbarem Deckel |
CN104265402B (zh) * | 2014-09-18 | 2017-01-11 | 中国第一汽车股份有限公司 | 主动式油气分离器 |
CN105422215B (zh) * | 2015-11-13 | 2018-01-26 | 浙江三好汽车部件有限公司 | 一种油气分离器组合物及其油气分离方法 |
CN111173587B (zh) * | 2019-12-31 | 2021-04-16 | 潍柴动力股份有限公司 | Pcv阀体的压力调节方法、调节装置及调节系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3152747A1 (de) * | 1981-07-18 | 1983-06-30 | Bayerische Motoren Werke Ag | Zyklonoelabscheider |
US5536289A (en) * | 1994-02-15 | 1996-07-16 | Firma Carl Freudenberg | Gas-liquid separator |
DE19700733A1 (de) * | 1997-01-11 | 1998-07-23 | Bosch Gmbh Robert | Kurbelgehäuse-Entlüftung mit integrierten Zusatzfunktionen |
DE19838247A1 (de) * | 1998-08-22 | 2000-02-24 | Knecht Filterwerke Gmbh | Ölnebelabscheider |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19707597A1 (de) * | 1997-02-26 | 1998-08-27 | Knecht Filterwerke Gmbh | Zyklon mit nachgeschaltetem Entlüftungsventil |
-
2003
- 2003-01-14 DE DE10301028A patent/DE10301028A1/de not_active Withdrawn
-
2004
- 2004-01-14 AT AT04000598T patent/ATE348249T1/de not_active IP Right Cessation
- 2004-01-14 DE DE502004002256T patent/DE502004002256D1/de not_active Expired - Fee Related
- 2004-01-14 EP EP04000598A patent/EP1447531B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3152747A1 (de) * | 1981-07-18 | 1983-06-30 | Bayerische Motoren Werke Ag | Zyklonoelabscheider |
US5536289A (en) * | 1994-02-15 | 1996-07-16 | Firma Carl Freudenberg | Gas-liquid separator |
DE19700733A1 (de) * | 1997-01-11 | 1998-07-23 | Bosch Gmbh Robert | Kurbelgehäuse-Entlüftung mit integrierten Zusatzfunktionen |
DE19838247A1 (de) * | 1998-08-22 | 2000-02-24 | Knecht Filterwerke Gmbh | Ölnebelabscheider |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004033677B4 (de) * | 2004-07-09 | 2016-03-03 | Volkswagen Ag | Kombination aus einem Druckregelventil und einem Ölabscheider für Entlüftungsgase eines Kurbelgehäuses |
WO2007020084A3 (de) * | 2005-08-17 | 2007-05-10 | Hengst Gmbh & Co Kg | Vorrichtung zum entlüften des kurbelgehäuses einer brennkraftmaschine und zum entölen des kurbelgehäuseentlüftungsgases |
CN108167046A (zh) * | 2017-12-27 | 2018-06-15 | 天津惠德汽车进气系统股份有限公司 | 一种新型柴油机呼吸器 |
Also Published As
Publication number | Publication date |
---|---|
ATE348249T1 (de) | 2007-01-15 |
DE10301028A1 (de) | 2004-07-29 |
EP1447531B1 (de) | 2006-12-13 |
DE502004002256D1 (de) | 2007-01-25 |
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