EP2216519A2 - Pressure control valve - Google Patents
Pressure control valve Download PDFInfo
- Publication number
- EP2216519A2 EP2216519A2 EP09176266A EP09176266A EP2216519A2 EP 2216519 A2 EP2216519 A2 EP 2216519A2 EP 09176266 A EP09176266 A EP 09176266A EP 09176266 A EP09176266 A EP 09176266A EP 2216519 A2 EP2216519 A2 EP 2216519A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- membrane
- pressure control
- housing
- control valve
- 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- Withdrawn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
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
- F01M13/0011—Breather valves
-
- 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
- F01M13/0011—Breather valves
- F01M2013/0016—Breather valves with a membrane
Definitions
- the invention relates to a pressure regulating valve for the venting of an internal combustion engine according to the preamble of patent claim 1.
- Such pressure control valves are used for example in the vent line between the crankcase and intake pipe or air filter.
- the aim is not to increase the pressure or negative pressure in the containers to be vented beyond a predetermined value.
- valve which consists of two part valves, which are both arranged on a single membrane. Disadvantages of this type of valve are that, in the case of certain switching states, high noise emissions occur, which can occur, in particular, in the region between the valve opening and the membrane.
- the invention has for its object, starting from the known prior art to provide a pressure control valve, which causes lower noise emissions.
- the pressure control valve comprises a valve housing, which is composed of a particular pot-shaped housing lower part and a housing cover.
- the housing has an inflow nozzle which opens into the housing lower part and an outlet opening out of the housing lower part Outlet nozzle, whose centrally arranged inside the valve housing end portion is formed as a valve seat.
- the pressure regulating valve further comprises a clamped diaphragm valve body sealed at its edge in a groove between the housing cover and the housing lower part, which divides the valve housing into a valve chamber and via a ventilation chamber, wherein the ventilation chamber can be connected to the atmosphere via a ventilation duct.
- the membrane has a valve seat facing the valve seat at the end of the valve.
- the pressure control valve further comprises a compression spring, which is supported on the bottom of the housing base and exerts a force on the membrane in the direction of the housing cover.
- the pressure regulating valve further comprises an intermediate valve arranged between the valve plate of the membrane and the first valve seat on the housing lower part.
- the intermediate valve has a second valve seat which faces the membrane and cooperates with the valve plate of the membrane
- the intermediate valve has a valve plate, which faces the valve seat of the housing lower part and cooperates therewith, wherein the intermediate valve is arranged on the membrane such that an axial relative movement between the membrane and the intermediate valve is possible.
- valve plate of the membrane is associated with the valve seat of the housing base and operatively associated therewith.
- the intermediate valve has a device for flow diversion, which can be detachably or non-detachably connected to the valve plate. Due to the flow deflection, the noise emissions can be positively influenced.
- the means for flow deflection is designed as a conical or truncated cone-like elevation, which is applied to the membrane in the middle of the valve plate z. B. can be glued or molded.
- the device for flow diversion is formed by a plurality of elevations distributed on the valve plate. These can be formed as part of the membrane or insoluble on this, z. B. be attached by an adhesive connection.
- the device for flow diversion is formed by an annular insert which surrounds the spring of the intermediate valve over a part of its length in the part adjoining the membrane or is surrounded by the latter.
- the device for flow deflection is pressed by the spring against the membrane.
- the means for flow deflection is formed as part of the membrane or insoluble on this, z. B. fastened by an adhesive or welded connection.
- the means for flow diversion is formed by the spring of the intermediate valve itself, wherein the spring stands on a part of its length in the part adjacent to the membrane on block, d. H. that in this area the turns are directly adjacent to each other. As a result, only a small volume flow can pass between the turns in this area.
- blow-by ie blow-by gas
- the requirement is made that during operation in the crankcase always a slight negative pressure prevail, so that no oily blow-by, for example, pass through the vent line to the outside and can pollute the environment.
- a pressure control valve which is intended for installation in the vent line between the intake manifold and the crankcase of an internal combustion engine, exists according to FIG. 1 from a valve housing 11, which has an inflow nozzle 10.
- This inflow port is provided at its outer end with a torus 28, so that a hose or the like can be connected.
- the inflow port is guided coaxially with the valve housing 11 in the same and includes within the valve housing 11 with a valve seat 17 from.
- the valve housing 11 is open at the top and contains at its upper opening an annular groove 15. On this opening of the valve housing 11, a housing cover 13 is attached, wherein between the housing cover 13 and valve housing 11, a membrane 14 is inserted.
- the membrane surface of this membrane is thickened in its middle part and has in this area a valve plate-shaped surface 22, which faces the valve housing.
- the membrane has a means for flow deflection 27 in the middle of the valve plate-shaped surface 22 on, which is designed in this embodiment as a truncated cone-like elevation, which z. B. can be glued or molded.
- a first valve chamber 29 is formed, which communicates via a vent hole 16 with the atmospheric external pressure.
- the valve housing 11 also has an outlet connection 12. Also, this drain pipe 12 is provided with a torus 30 for connecting a hose.
- a hollow cylindrical part 26 is applied in the central region of the membrane 14. This can be connected both detachably (eg by a clamping connection) and inseparably (for example by an adhesive connection) to the membrane.
- a compression spring 25 At an annular collar of the hollow cylindrical portion 26 is a compression spring 25 at.
- This compression spring 25 is supported at its opposite end to the valve housing. By the compression spring, the membrane is moved to an upper end position. In this end position, the membrane rests against the housing cover 13 in the region of its thickening 31.
- an intermediate valve 18 is provided with a valve plate 19 and with a valve seat 21.
- the intermediate valve 18 has a valve opening 20 with a certain diameter which is smaller than the diameter of the valve seat 17.
- the intermediate valve 18 is held by a compression spring 24 at rest in the position shown.
- a compression spring 24 is held by a compression spring 24 at rest in the position shown.
- two differently acting valves formed, namely a valve consisting of valve plate 19 and valve seat 17 and a valve with valve plate 22 and valve seat 21st
- the hollow cylindrical part 26 is provided with openings 23.
- the function of the breakthroughs is based on the FIG. 2 explained in more detail.
- FIG. 2 is that in FIG. 1 described pressure control valve again shown.
- the pressure control valve is now in an intermediate position. This position is reached when a certain threshold value of the Saugrohrunter horres has been established and wherein this limit is above the maximum allowable in the crankcase vacuum.
- the negative pressure applied to the discharge nozzle 12 which can reach, for example, up to 800 mbar, depending on the operating state of the internal combustion engine, acts on the membrane 14 via the valve opening 20.
- the blow-by gases now flow through the openings 23 through the valve opening 20 according to FIG arrows.
- the diaphragm 14 will again lift off from the valve seat 21 of the intermediate valve 18 and thus first the smaller opening and a further drop in Saugrohrunter horrs, for example by opening the Main throttle, which reduces negative pressure in the intake manifold of the internal combustion engine, so that eventually the larger opening, ie the valve between the valve seat 17 and the valve plate 19 is opened.
- FIG. 4 shows a section of a further embodiment of the valve.
- the device for flow deflection 27 is formed by an annular insert, which is surrounded on a part of the length of the spring 25 in the adjoining the membrane part of this spring 25.
- the Device for flow deflection 27 is pressed by the spring 25 against the membrane 14.
- FIG. 5 shows a section of a further embodiment of the valve.
- the means for flow deflection 27 is formed by the spring 25 itself, is part of its length in the adjoining the membrane 14 part on block, whereby only a small volume flow between the turns can pass in this area.
- FIG. 6 shows a section of a further embodiment of the valve.
- the means for flow deflection 27 is formed by an annular insert, which the spring 25 on a part of its length in the adjoining the membrane 14 part.
- the device for flow deflection 27 on the membrane is insoluble, z. B. attached by an adhesive connection.
- FIG. 7 shows a section of a further embodiment of the valve.
- the device for flow deflection 27 is formed by a plurality of distributed on the valve plate 22 surveys. These are formed here as part of the membrane 14.
Abstract
Description
Die Erfindung betrifft ein Druckregelventil für die Entlüftung einer Brennkraftmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a pressure regulating valve for the venting of an internal combustion engine according to the preamble of patent claim 1.
Derartige Druckregelventile werden beispielsweise in der Entlüftungsleitung zwischen Kurbelgehäuse und Ansaugrohr bzw. Luftfilter verwendet. In jedem Fall geht es darum, den Druck oder Unterdruck in den zu entlüftenden Behältern nicht über einen vorbestimmten Wert hinaus ansteigen zu lassen.Such pressure control valves are used for example in the vent line between the crankcase and intake pipe or air filter. In any case, the aim is not to increase the pressure or negative pressure in the containers to be vented beyond a predetermined value.
Aus der Offenlegungsschrift
Der Erfindung liegt die Aufgabe zugrunde, ausgehend von dem bekannten Stand der Technik ein Druckregelventil zu schaffen, welches geringere Geräuschemissionen verursacht.The invention has for its object, starting from the known prior art to provide a pressure control valve, which causes lower noise emissions.
Diese Aufgabe wird durch ein Ventil gemäß Anspruch 1 gelöst.This object is achieved by a valve according to claim 1.
Das erfindungsgemäße Druckregelventil umfasst ein Ventilgehäuse, das aus einem insbesondere topfförmigen Gehäuseunterteil und einem Gehäusedeckel zusammengesetzt ist. Das Gehäuse weist einen in das Gehäuseunterteil einmündenden Zuflussstutzen und einen aus dem Gehäuseunterteil ausmündenden Abflussstutzen auf, dessen zentral innerhalb des Ventilgehäuses angeordnetes Stutzenende als Ventilsitz ausgebildet ist.The pressure control valve according to the invention comprises a valve housing, which is composed of a particular pot-shaped housing lower part and a housing cover. The housing has an inflow nozzle which opens into the housing lower part and an outlet opening out of the housing lower part Outlet nozzle, whose centrally arranged inside the valve housing end portion is formed as a valve seat.
Das Druckregelventil umfasst weiter einen an seinem Rand in einer Nut zwischen dem Gehäusedeckel und dem Gehäuseunterteil abgedichteten eingeklemmten Membranventilkörper, der das Ventilgehäuse in eine Ventilkammer und eine über Belüftungskammer unterteilt, wobei die Belüftungskammer über einen Belüftungskanal mit der Atmosphäre verbunden sein kann. Die Membran weist eine dem Ventilsitz am Stutzenende zugewandte Ventilplatte auf.The pressure regulating valve further comprises a clamped diaphragm valve body sealed at its edge in a groove between the housing cover and the housing lower part, which divides the valve housing into a valve chamber and via a ventilation chamber, wherein the ventilation chamber can be connected to the atmosphere via a ventilation duct. The membrane has a valve seat facing the valve seat at the end of the valve.
Das Druckregelventil umfasst weiter eine Druckfeder, welche sich an dem Boden des Gehäuseunterteils abstützt und eine Kraft auf die Membran in Richtung des Gehäusedeckels ausübt.The pressure control valve further comprises a compression spring, which is supported on the bottom of the housing base and exerts a force on the membrane in the direction of the housing cover.
In einer besonders vorteilhaften Ausführungsform umfasst das Druckregelventil weiter ein zwischen der Ventilplatte der Membran und dem ersten Ventilsitz am Gehäuseunterteil angeordnetes Zwischenventil.In a particularly advantageous embodiment, the pressure regulating valve further comprises an intermediate valve arranged between the valve plate of the membrane and the first valve seat on the housing lower part.
In einer Ausführungsform weist das Zwischenventil einen zweiten Ventilsitz auf, der der Membran zugewandt ist und mit der Ventilplatte der Membran zusammenwirktIn one embodiment, the intermediate valve has a second valve seat which faces the membrane and cooperates with the valve plate of the membrane
In einer Ausführungsform weist das Zwischenventil eine Ventilplatte auf, welche dem Ventilsitz des Gehäuseunterteils zugewandt ist und mit diesem zusammenwirkt, wobei das Zwischenventil an der Membran derart angeordnet ist, dass eine axiale Relativbewegung zwischen der Membran und dem Zwischenventil möglich ist.In one embodiment, the intermediate valve has a valve plate, which faces the valve seat of the housing lower part and cooperates therewith, wherein the intermediate valve is arranged on the membrane such that an axial relative movement between the membrane and the intermediate valve is possible.
In einer Ausführungsform ohne Zwischenventil ist die Ventilplatte der Membran dem Ventilsitz des Gehäuseunterteils zugeordnet und wirk mit diesem zusammen.In one embodiment, without an intermediate valve, the valve plate of the membrane is associated with the valve seat of the housing base and operatively associated therewith.
In einer besonders vorteilhaften Ausführungsform weist das Zwischenventil eine Einrichtung zur Strömungsumleitung auf, welche lösbar oder unlösbar mit der Ventilplatte verbunden sein kann. Durch die Strömungsumlenkung können die Geräuschemissionen positiv beeinflusst werden.In a particularly advantageous embodiment, the intermediate valve has a device for flow diversion, which can be detachably or non-detachably connected to the valve plate. Due to the flow deflection, the noise emissions can be positively influenced.
In einer weiteren Ausführungsform ist die Einrichtung zur Strömungsumlenkung als kegel- oder kegelstumpfartige Erhebung ausgeführt, welche an die Membran in der Mitte der Ventilplatte z. B. angeklebt oder angeformt sein kann.In a further embodiment, the means for flow deflection is designed as a conical or truncated cone-like elevation, which is applied to the membrane in the middle of the valve plate z. B. can be glued or molded.
In einer weiteren Ausführungsform ist die Einrichtung zur Strömungsumlenkung durch eine Mehrzahl von auf der Ventilplatte verteilten Erhebungen gebildet. Diese können als Teil der Membran ausgebildet oder auf dieser unlösbar, z. B. durch eine Klebeverbindung befestigt sein.In a further embodiment, the device for flow diversion is formed by a plurality of elevations distributed on the valve plate. These can be formed as part of the membrane or insoluble on this, z. B. be attached by an adhesive connection.
In einer weiteren Ausführungsform ist die Einrichtung zur Strömungsumlenkung durch einen ringförmigen Einsatz gebildet, welcher die Feder des Zwischenventils auf einem Teil ihrer Länge im an die Membran anschließenden Teil umgibt oder von dieser umgeben wird.In a further embodiment, the device for flow diversion is formed by an annular insert which surrounds the spring of the intermediate valve over a part of its length in the part adjoining the membrane or is surrounded by the latter.
In einer weiteren Ausführungsform wird die Einrichtung zur Strömungsumlenkung von der Feder gegen die Membran gedrückt.In a further embodiment, the device for flow deflection is pressed by the spring against the membrane.
In einer weiteren Ausführungsform ist die Einrichtung zur Strömungsumlenkung als Teil der Membran ausgebildet oder auf dieser unlösbar, z. B. durch eine Klebe- oder Schweißverbindung befestigt.In a further embodiment, the means for flow deflection is formed as part of the membrane or insoluble on this, z. B. fastened by an adhesive or welded connection.
In einer weiteren Ausführungsform ist die Einrichtung zur Strömungsumlenkung durch die Feder des Zwischenventils selbst gebildet, wobei die Feder auf einem Teil ihrer Länge im an die Membran anschließenden Teil auf Block steht, d. h. dass in diesem Bereich die Windungen direkt aneinander liegen. Dadurch kann nur noch ein geringer Volumenstrom zwischen den Windungen in diesem Bereich hindurchtreten.In a further embodiment, the means for flow diversion is formed by the spring of the intermediate valve itself, wherein the spring stands on a part of its length in the part adjacent to the membrane on block, d. H. that in this area the turns are directly adjacent to each other. As a result, only a small volume flow can pass between the turns in this area.
Die Erfindung wird nachfolgend anhand einiger Ausführungsbeispiele näher erläutert. Es zeigen:
-
Figur 1 einen Schnitt durch ein Druckregelventil bei geöffneten Ventilen, -
Figur 2 das inFigur 1 gezeigte Druckregelventil mit geschlossenem ersten Ventil, -
Figur 3 das inFigur 1 gezeigte Druckregelventil in völlig geschlossenem Zustand und die -
Figuren 4-7 Ausschnitte verschiedener Ausführungsformen des Ventils mit verschiedenen Ausführungen der Einrichtung zur Strömungsumlenkung.
-
FIG. 1 a section through a pressure control valve with valves open, -
FIG. 2 this inFIG. 1 shown pressure control valve with closed first valve, -
FIG. 3 this inFIG. 1 shown pressure control valve in fully closed state and the -
Figures 4-7 Cutouts of various embodiments of the valve with different versions of the device for flow deflection.
Im praktischen Betrieb wird durch das in die Entlüftungsleitung zwischen dem Saugrohr und dem Kurbelgehäuse der Brennkraftmaschine eingebaute Druckregelventil Durchblasgas, d. h. Blow-by-Gas, in Pfeilrichtung hindurchgesaugt. Dabei wird die Forderung gestellt, dass während des Betriebs im Kurbelgehäuse immer ein geringer Unterdruck vorherrschen soll, damit keine ölhaltigen Durchblasgase beispielsweise durch die Entlüftungsleitung nach außen gelangen und die Umwelt verschmutzen können.In practical operation, through the built-in the vent line between the intake manifold and the crankcase of the internal combustion engine pressure control valve blow-by, ie blow-by gas, sucked in the arrow direction. In this case, the requirement is made that during operation in the crankcase always a slight negative pressure prevail, so that no oily blow-by, for example, pass through the vent line to the outside and can pollute the environment.
Andererseits besteht die Forderung, dass der angegebene Unterdruckwert nicht wesentlich unterschritten wird, weil sonst durch Undichtigkeiten ungewollt Fehlluft in das Kurbelgehäuse gesaugt würde.On the other hand, there is the requirement that the specified negative pressure value is not significantly below, otherwise would be sucked by leaks accidentally incorrect air into the crankcase.
Ein Druckregelventil, welches für den Einbau in die Entlüftungsleitung zwischen dem Saugrohr und dem Kurbelgehäuse einer Brennkraftmaschine bestimmt ist, besteht gemäß
Das Ventilgehäuse 11 ist nach oben offen und enthält an seiner oberen Öffnung eine Ringnut 15. Auf dieser Öffnung des Ventilgehäuses 11 wird ein Gehäusedeckel 13 befestigt, wobei zwischen Gehäusedeckel 13 und Ventilgehäuse 11 eine Membran 14 eingelegt ist. Die Membranfläche dieser Membran ist in ihrem mittleren Teil verdickt und weist in diesem Bereich eine ventilplattenförmige Fläche 22 auf, welche dem Ventilgehäuse zugewandt ist. Ferner weist die Membran in dieser Ausführungsform eine in der Mitte der ventilplattenförmige Fläche 22 eine Einrichtung zur Strömungsumlenkung 27 auf, die in dieser Ausführungsform als kegelstumpfartige Erhebung ausgeführt ist, welche an die Membran z. B. angeklebt oder angeformt sein kann.The
Zwischen Membran 14 und Gehäusedeckel 13 wird eine erste Ventilkammer 29 gebildet, welche über eine Belüftungsbohrung 16 mit dem atmosphärischen Aussendruck in Verbindung steht. Das Ventilgehäuse 11 weist ferner einen Abflussstutzen 12 auf. Auch dieser Abflussstutzen 12 ist mit einem Ringwulst 30 zum Anschluss eines Schlauches versehen.Between
Im mittleren Bereich der Membran 14 ist ein hohlzylindrisches Teil 26 angelegt. Dieses kann sowohl lösbar (z. B. durch eine Klemmverbindung) als auch unlösbar (z. B. durch eine Klebeverbindung) mit der Membran verbunden sein.In the central region of the
An einem ringförmigen Kragen des hohlzylindrischen Teils 26 liegt eine Druckfeder 25 an. Diese Druckfeder 25 stützt sich mit ihrem gegenüberliegenden Ende an dem Ventilgehäuse ab. Durch die Druckfeder wird die Membran in eine obere Endstellung bewegt. In dieser Endstellung liegt die Membran im Bereich ihrer Verdickung 31 an dem Gehäusedeckel 13 an.At an annular collar of the hollow
Innerhalb des hohlzylindrischen Teils 26 befindet sich ein Zwischenventil 18. Dieses Zwischenventil 18 ist mit einer Ventilplatte 19 und mit einem Ventilsitz 21 versehen. Außerdem hat das Zwischenventil 18 eine Ventilöffnung 20 mit einem bestimmten Durchmesser, welcher kleiner als der Durchmesser des Ventilsitzes 17 ist.Within the hollow
Das Zwischenventil 18 wird von einer Druckfeder 24 im Ruhezustand in der dargestellten Lage gehalten. Durch dieses Zwischenventil werden in dem Druckregelventil zwei unterschiedlich wirkende Ventile gebildet, und zwar ein Ventil bestehend aus Ventilplatte 19 und Ventilsitz 17 und ein Ventil mit Ventilplatte 22 und Ventilsitz 21.The
Das hohlzylindrische Teil 26 ist mit Durchbrüchen 23 versehen. Die Funktion der Durchbrüche wird anhand der
In der in
In
Bei Unterschreiten eines festgelegten Druckwertes, der niedriger als der Atmosphärendruck ist, bewegt sich die in
In diesem Zustand wirkt der an dem Abflussstutzen 12 angelegte Unterdruck, der je nach Betriebszustand der Brennkraftmaschine beispielsweise bis zu 800 mbar erreichen kann, über die Ventilöffnung 20 auf die Membran 14. Die Durchblasgase strömen nunmehr über die Durchbrüche 23 durch diese Ventilöffnung 20 gemäß den eingezeichneten Pfeilen.In this state, the negative pressure applied to the
Entsteht ein noch höherer Unterruck im Saugrohr, so wird sich gemäß
Claims (13)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810061753 DE102008061753A1 (en) | 2008-12-12 | 2008-12-12 | Pressure control valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2216519A2 true EP2216519A2 (en) | 2010-08-11 |
EP2216519A3 EP2216519A3 (en) | 2011-05-04 |
Family
ID=42041525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09176266A Withdrawn EP2216519A3 (en) | 2008-12-12 | 2009-11-18 | Pressure control valve |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2216519A3 (en) |
DE (1) | DE102008061753A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104632319A (en) * | 2014-12-11 | 2015-05-20 | 中国北方发动机研究所(天津) | Novel crankcase waste gas pressure control valve |
US10787942B2 (en) | 2017-10-20 | 2020-09-29 | Mann+Hummel Gmbh | Valve component for regulating or controlling a fluid pressure |
WO2022009750A1 (en) * | 2020-07-07 | 2022-01-13 | ヤマシンフィルタ株式会社 | Valve device and filter device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013019885B4 (en) * | 2013-11-28 | 2021-02-04 | Mann+Hummel Gmbh | Pressure control valve |
CN104153844A (en) * | 2014-08-28 | 2014-11-19 | 河南柴油机重工有限责任公司 | External crank case pressure adjusting device and method |
DE102015016023A1 (en) | 2015-12-11 | 2017-06-14 | Fresenius Medical Care Deutschland Gmbh | Locking and / or throttle valve and blood treatment device comprising such a valve |
CN105840271B (en) * | 2016-06-08 | 2018-06-12 | 汉格斯特滤清系统(昆山)有限公司 | For the pressure-regulating valve and gs-oil separator of gs-oil separator |
CN115788618B (en) * | 2022-11-29 | 2024-04-23 | 重庆长安汽车股份有限公司 | Built-in PCV valve mounting structure, internal combustion engine and vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4022129A1 (en) | 1990-07-11 | 1992-01-16 | Mann & Hummel Filter | PRESSURE CONTROL VALVE FOR INSTALLATION IN A BLEEDING LINE ON AN INTERNAL COMBUSTION ENGINE |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416119B4 (en) * | 1994-05-06 | 2006-02-09 | Mahle Filtersysteme Gmbh | Crankcase ventilation valve |
JPH11200832A (en) * | 1998-01-12 | 1999-07-27 | Iseki & Co Ltd | Blowby gas reducing device for engine |
DE10236783B4 (en) * | 2002-08-10 | 2008-12-24 | Mann + Hummel Gmbh | Pressure control valve |
KR100667406B1 (en) * | 2005-10-06 | 2007-01-10 | 현대자동차주식회사 | Structue of crankcase pressure control valve with a bended nipple |
DE202006001287U1 (en) * | 2006-01-27 | 2007-06-06 | Mann+Hummel Gmbh | Pressure control valve |
DE102006059008A1 (en) * | 2006-12-14 | 2008-06-19 | Robert Bosch Gmbh | Pressure control valve |
-
2008
- 2008-12-12 DE DE200810061753 patent/DE102008061753A1/en not_active Ceased
-
2009
- 2009-11-18 EP EP09176266A patent/EP2216519A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4022129A1 (en) | 1990-07-11 | 1992-01-16 | Mann & Hummel Filter | PRESSURE CONTROL VALVE FOR INSTALLATION IN A BLEEDING LINE ON AN INTERNAL COMBUSTION ENGINE |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104632319A (en) * | 2014-12-11 | 2015-05-20 | 中国北方发动机研究所(天津) | Novel crankcase waste gas pressure control valve |
US10787942B2 (en) | 2017-10-20 | 2020-09-29 | Mann+Hummel Gmbh | Valve component for regulating or controlling a fluid pressure |
WO2022009750A1 (en) * | 2020-07-07 | 2022-01-13 | ヤマシンフィルタ株式会社 | Valve device and filter device |
Also Published As
Publication number | Publication date |
---|---|
DE102008061753A1 (en) | 2010-06-24 |
EP2216519A3 (en) | 2011-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4022129C2 (en) | ||
DE1576769C3 (en) | Device for afterburning the exhaust gases from internal combustion engines | |
EP2216519A2 (en) | Pressure control valve | |
DE2926373C2 (en) | Exhaust gas bypass valve arrangement for the exhaust gas turbocharger of an internal combustion engine | |
EP2291717B1 (en) | Pressure control valve | |
DE102008050252B4 (en) | Valve device for internal combustion engines, in particular secondary air valve | |
DE3032243C2 (en) | Pressure control valve for installation in a vent line of an internal combustion engine | |
EP4241869A1 (en) | Filter element, oil separator and method for regulating the pressure in a crank case ventilation system | |
DE102013019885B4 (en) | Pressure control valve | |
DE2940502A1 (en) | PRESSURE REGULATOR | |
DE10249720A1 (en) | Pressure control valve | |
DE10147230B4 (en) | Ventilation device for a crankcase of an internal combustion engine | |
DE10261120B4 (en) | Diaphragm control valve | |
EP3556621A1 (en) | Pressure limitation valve | |
DE3822789A1 (en) | Automatic throttle valve for limiting volume flow | |
DE2918916A1 (en) | GAS FLOW CONTROL DEVICE AND CONTROL SYSTEM FOR AN EXHAUST TURBOCHARGER | |
EP0802470A1 (en) | Pressure regulating valve | |
DE10236783B4 (en) | Pressure control valve | |
DE19814744A1 (en) | Pressure regulation valve e.g. for regulating fuel feed pressure for IC engine | |
DE2712511A1 (en) | Diaphragm valve for exhaust gas feed back - has housing edge with raised part working with corresponding recessed diaphragm part to prevent tearing | |
EP1933009A2 (en) | Pressure control valve | |
DE10155176A1 (en) | Pressure regulator valve in internal combustion engine has outflow pipe of valve housing with two mouth openings of different diameter with second compression spring biasing diaphragm body towards housing lid | |
DE102007012482B4 (en) | Oil separator, separation process and their use | |
DE102009006381B4 (en) | Pressure control valve for a crankcase ventilation | |
EP2412947B1 (en) | Control assembly for a secondary air valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20111105 |