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EP3575613B1 - Combustion engine with multistage suction jet pump - Google Patents

Combustion engine with multistage suction jet pump Download PDF

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Publication number
EP3575613B1
EP3575613B1 EP19186332.3A EP19186332A EP3575613B1 EP 3575613 B1 EP3575613 B1 EP 3575613B1 EP 19186332 A EP19186332 A EP 19186332A EP 3575613 B1 EP3575613 B1 EP 3575613B1
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EP
European Patent Office
Prior art keywords
jet
suction pump
combustion engine
pump
crankcase
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.)
Active
Application number
EP19186332.3A
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German (de)
French (fr)
Other versions
EP3575613A1 (en
Inventor
Jorge Soares
Christian Berding
Hans Janssen
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.)
Polytec Plastics Germany GmbH and Co KG
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Polytec Plastics Germany GmbH and Co KG
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
    • F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
    • 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
    • F01M2013/026—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with pumps sucking air or blow-by gases from the crankcase
    • 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
    • F01M2013/027—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with a turbo charger or compressor

Definitions

  • the subject of the present invention is a multi-stage suction jet pump for sucking off blow-by gases from internal combustion engines.
  • active pumps are used for internal combustion engines which, for example, actively extract blow-by gases via vacuum pumps or impeller pumps.
  • suction jet pumps are their relatively poor efficiency. These pumps only use a small part of the energy that is supplied in the form of compressed air from the charged area behind the turbocharger.
  • DE 10 2013 203 942 A1 describes a suction jet pump with a propellant line, a propulsion jet nozzle, a suction area, a mixing tube and a diffuser, the propulsion jet nozzle and the mixing tube being aligned with one another in a straight line. Viewed in the direction of flow, the diffuser has a course that deviates from the course of the mixing tube.
  • a suction jet pump is provided as a pump, which, in combination with a pressure control valve, regulates the negative pressure for venting an internal combustion engine.
  • a fuel pump in DE 44 00 958 C1 a multi-stage ejector pump listed.
  • the multi-stage (2-stage, 3-stage, 4-stage, ...) of the suction jet pump can significantly increase the efficiency of the pump.
  • a liquid is conveyed here.
  • the object of the present invention as defined in claim 1 is to lower the negative pressure in the engine or to compensate for the pressure increase caused by an oil separator.
  • the aforementioned object is achieved according to the invention in a first embodiment by a suction jet pump 7 for venting an internal combustion engine with a turbocharger 3 between an air filter 1 and a crankcase 4, which is characterized in that a charge air path 5 has a branch to an at least two-stage suction jet pump 7
  • the inlet of the ejector pump 7 is connected to the crankcase 4 via the engine ventilation 6 and the outlet of the ejector pump 7 for blow-by gas recirculation 9 is connected to the intake path 2 between the air filter 1 and the turbocharger 3, the ventilation arrangement having at least one bypass valve and / or a check valve (8) in the direction of flow parallel to the suction jet pump (7) and between the crankcase (4) and the suction section (2).
  • Multi-stage suction jet pumps 7 are particularly suitable for the present purpose, since here the absence of moving parts means that a wear-free pump 7 can be expected.
  • the multi-stage pump 7 works by pushing a propulsion jet (e.g. compressed air from the charged suction pipe) through a small nozzle and the jet pulls gas along its periphery. After the first stage, the volume flow increased by the supply air is then passed through a second larger and a third, even larger nozzle, with a portion of the gas being drawn in again.
  • a propulsion jet e.g. compressed air from the charged suction pipe
  • the propulsion jet takes a portion of the gas to be pumped (blow-by gas) with it. Due to the multi-stage design, the volume flow is significantly larger (factor 2, 3 or more) than with a single-stage ejector pump. The more the better.
  • a fundamental disadvantage of the ejector pump 7 is that it also generates a pressure loss when it is forced through. As a result of the multistage, a sharply set pump 7 is created which has no propulsion jet in the event that the internal combustion engine is not working in uncharged operation.
  • the blow-by gas would have to be forced through the small nozzles, creating a pressure loss that is undesirable.
  • This pressure loss is multi-stage in an optimally designed Suction jet pump 7 is not insignificant (depending on the volume flow 5 to 100 mbar). Since this disadvantage may outweigh the usefulness of the ejector pump 7, at least one bypass valve 8 and / or one check valve 8 is provided according to the invention for this application, which in the event that the ejector pump 7 does not apply a propulsion jet, the blow-by gas at the Pump 7 bypasses and thus minimizes the pressure loss in this case.
  • FIG. 1 a preferred embodiment of the present invention is illustrated.
  • the blow-by gas is fed to the crankcase 4 via the turbocharger 3 and the charge air line 5.
  • the charge air path 5 has a branch which opens into a multi-stage suction jet pump 7.
  • the engine ventilation 6 represents a further connection between the crankcase 4 and the suction jet pump 7.
  • Another branch of the engine ventilation 6 leads in the particularly preferred embodiment to a bypass valve 8 and / or a check valve 8, which controls the gas flow when there is little or no propulsion jet in the ejector pump 7 via the blow-by gas recirculation 9 to the intake path 2 between the air filter 1 and the turbocharger 3.
  • valve 8 When the engine is operating in turbo mode, the valve 8 is closed due to the higher pressure downstream of the suction jet pump 7 in the direction of flow. If the engine is working in non-charged mode, the blow-by gas can flow past the pump 7 without any loss of pressure.
  • a preferred embodiment of the present invention is shown in which the jet pump 7 is inserted into a cylinder head cover.
  • the pump 7 is preferably made of plastic, for example polyamide. Parts of the pump can also be shown in the cylinder head cover 10.
  • the ejector pump 7 can also be integrated into a cylinder head cover 10.
  • the complete component can also be produced as a module from the suction jet pump 7 with the bypass valve 8 and / or the check valve 8 with hose connections.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Supercharger (AREA)

Description

Gegenstand der vorliegenden Erfindung ist eine mehrstufige Saugstrahlpumpe zum Absaugen von Blow- By- Gasen aus Verbrennungsmotoren.The subject of the present invention is a multi-stage suction jet pump for sucking off blow-by gases from internal combustion engines.

Um den Unterdruck im Motor abzusenken oder den durch einen Ölabscheider verursachten Druckanstieg auszugleichen sind aktive Pumpen für Verbrennungsmotoren im Einsatz, die beispielsweise über Vakuumpumpen oder Flügelradpumpen Blow- By-Gase aktiv absaugen.In order to lower the negative pressure in the engine or to compensate for the increase in pressure caused by an oil separator, active pumps are used for internal combustion engines which, for example, actively extract blow-by gases via vacuum pumps or impeller pumps.

Der Nachteil von Saugstrahlpumpen ist der verhältnismäßig schlechte Wirkungsgrad. Diese Pumpen nutzen nur einen kleinen Teil der Energie aus, die in Form von Druckluft aus dem aufgeladenen Bereich hinter Turbolader zugeführt wird.The disadvantage of suction jet pumps is their relatively poor efficiency. These pumps only use a small part of the energy that is supplied in the form of compressed air from the charged area behind the turbocharger.

DE 10 2013 203 942 A1 beschreibt eine Saugstrahlpumpe mit einer Treibmittelleitung, einer Treibstrahldüse, einem Ansaugbereich, einem Mischrohr und einem Diffusor, wobei die Treibstrahldüse und das Mischrohr zueinander geradlinig ausgerichtet sind. In Strömungsrichtung gesehen weist der Diffusor einen vom Verlauf des Mischrohres abweichenden Verlauf auf. DE 10 2013 203 942 A1 describes a suction jet pump with a propellant line, a propulsion jet nozzle, a suction area, a mixing tube and a diffuser, the propulsion jet nozzle and the mixing tube being aligned with one another in a straight line. Viewed in the direction of flow, the diffuser has a course that deviates from the course of the mixing tube.

In DE 20 2006 001 287 U1 ist als Pumpe eine Saugstrahlpumpe vorgesehen, die in Kombination mit einem Druckregelventil den Unterdruck für die Entlüftung einer Brennkraftmaschine regelt.
Als Verbesserung der Funktion ist für eine Kraftstoffpumpe in DE 44 00 958 C1 eine mehrstufige Saugstrahlpumpe aufgeführt. Durch die Mehrstufigkeit (2-stufig, 3-stufig, 4-stufig,...) der Saugstrahlpumpe kann der Wirkungsgrad der Pumpe deutlich erhöht werden. Hier wird eine Flüssigkeit gefördert.In DE 20 2006 001 287 U1 a suction jet pump is provided as a pump, which, in combination with a pressure control valve, regulates the negative pressure for venting an internal combustion engine.
As an improvement of the function is for a fuel pump in DE 44 00 958 C1 a multi-stage ejector pump listed. The multi-stage (2-stage, 3-stage, 4-stage, ...) of the suction jet pump can significantly increase the efficiency of the pump. A liquid is conveyed here.

Die Aufgabe der vorliegenden Erfindung wie nach Anspruch 1 definiert besteht darin, den Unterdruck im Motor abzusenken oder den durch einen Ölabscheider verursachten Druckanstieg auszugleichen.
Die vorgenannte Aufgabe wird erfindungsgemäß in einer ersten Ausführungsform gelöst durch eine Saugstrahlpumpe 7 für die Entlüftung einer Brennkraftmaschine mit einem Turbolader 3 zwischen einem Luftfilter 1 und einem Kurbelgehäuse 4, die dadurch gekennzeichnet ist, dass eine Ladeluftstrecke 5 einen Abzweig zu einer wenigstens zweistufigen Saugstrahlpumpe 7 aufweist, wobei der Eingang der Saugstrahlpumpe 7 über die Motorentlüftung 6 mit dem Kurbelgehäuse 4 und der Auslass der Saugstrahlpumpe 7 zur Blow-By-Gas-Rückführung 9 mit der Ansaugstrecke 2 zwischen Luftfilter 1 und dem Turbolader 3 verbunden ist, wobei die Entlüftungsanordnung wenigstens ein Bypassventil und/ oder ein Rückschlagventil (8) in Strömungsrichtung parallel zur Saugstrahlpumpe (7) und zwischen dem Kurbelgehäuse (4) und der Ansaugstrecke (2) aufweist.The object of the present invention as defined in claim 1 is to lower the negative pressure in the engine or to compensate for the pressure increase caused by an oil separator.
The aforementioned object is achieved according to the invention in a first embodiment by a suction jet pump 7 for venting an internal combustion engine with a turbocharger 3 between an air filter 1 and a crankcase 4, which is characterized in that a charge air path 5 has a branch to an at least two-stage suction jet pump 7 The inlet of the ejector pump 7 is connected to the crankcase 4 via the engine ventilation 6 and the outlet of the ejector pump 7 for blow-by gas recirculation 9 is connected to the intake path 2 between the air filter 1 and the turbocharger 3, the ventilation arrangement having at least one bypass valve and / or a check valve (8) in the direction of flow parallel to the suction jet pump (7) and between the crankcase (4) and the suction section (2).

Mehrstufige Saugstrahlpumpen 7 sind für den vorliegenden Zweck besonders geeignet, da hier die Abwesenheit von beweglichen Teilen eine verschleißfreie Pumpe 7 erwarten lässt.Multi-stage suction jet pumps 7 are particularly suitable for the present purpose, since here the absence of moving parts means that a wear-free pump 7 can be expected.

Die mehrstufige Pumpe 7 wirkt, indem ein Treibstrahl (z.B. Druckluft aus dem aufgeladenen Saugrohr) durch eine kleine Düse gedrückt wird und der Strahl an seinem Umfang Gas mitreißt. Nach der ersten Stufe wird der durch die Zuluft erhöhte Volumenstrom anschließend durch eine zweite größere und eine dritte noch größere Düse durchströmt, wobei wiederum ein Gasanteil mitgezogen wird.The multi-stage pump 7 works by pushing a propulsion jet (e.g. compressed air from the charged suction pipe) through a small nozzle and the jet pulls gas along its periphery. After the first stage, the volume flow increased by the supply air is then passed through a second larger and a third, even larger nozzle, with a portion of the gas being drawn in again.

An jeder Düse nimmt der Treibstrahl einen Anteil des zu fördernden Gases (Blow-By-Gas) mit. Durch die Mehrstufigkeit wird der geförderte Volumenstrom deutlich größer (Faktor 2, 3 oder mehr) als bei einer einstufigen Saugstrahlpumpe. Je mehr, desto besser.At each nozzle, the propulsion jet takes a portion of the gas to be pumped (blow-by gas) with it. Due to the multi-stage design, the volume flow is significantly larger (factor 2, 3 or more) than with a single-stage ejector pump. The more the better.

Durch diesen verbesserten Wirkungsgrad kann der geförderte Volumenstrom wie auch der durch den Treibstrahl erzeugte Druckanstieg verbessert werden.Due to this improved efficiency, the conveyed volume flow as well as the pressure increase generated by the propulsion jet can be improved.

Ein grundsätzlicher Nachteil der Saugstrahlpumpe 7 ist, dass diese bei Zwangsdurchförderung auch einen Druckverlust erzeugt. Durch die Mehrstufigkeit entsteht eine scharf eingestellte Pumpe 7, die für den Fall dass der Verbrennungsmotor im nicht aufgeladenen Betrieb arbeitet keinen Treibstrahl hat.A fundamental disadvantage of the ejector pump 7 is that it also generates a pressure loss when it is forced through. As a result of the multistage, a sharply set pump 7 is created which has no propulsion jet in the event that the internal combustion engine is not working in uncharged operation.

In diesem Fall müsste das Blow-By-Gas durch die kleinen Düsen gedrückt werden und erzeugt dabei einen Druckverlust, der nicht erwünscht ist. Dieser Druckverlust ist bei einer optimal ausgelegten mehrstufigen Saugstrahlpumpe 7 nicht unerheblich (je nach Volumenstrom 5 bis 100 mbar). Da dieser Nachteil den Nutzen der Saugstrahlpumpe 7 unter Umständen übersteigt, ist erfindungsgemäß für diese Anwendung wenigstens ein Bypassventil 8 und/ oder ein Rückschlagventil 8 vorgesehen, welches in dem Fall, dass die Saugstrahlpumpe 7 keinen Treibstrahl aufbringt, das Blow-By-Gas an der Pumpe 7 vorbei leitet und damit den Druckverlust für diesen Fall minimiert.In this case, the blow-by gas would have to be forced through the small nozzles, creating a pressure loss that is undesirable. This pressure loss is multi-stage in an optimally designed Suction jet pump 7 is not insignificant (depending on the volume flow 5 to 100 mbar). Since this disadvantage may outweigh the usefulness of the ejector pump 7, at least one bypass valve 8 and / or one check valve 8 is provided according to the invention for this application, which in the event that the ejector pump 7 does not apply a propulsion jet, the blow-by gas at the Pump 7 bypasses and thus minimizes the pressure loss in this case.

In der Figur 1 wird eine bevorzugte Ausführungsform der vorliegenden Erfindung dargestellt. Ausgehend von einem Luftfilter 1 wird das Blow-By-Gas über den Turbolader 3 und die Ladeluftstrecke 5 dem Kurbelgehäuse 4 zugeführt. Die Ladeluftstrecke 5 weist einen Abzweig auf, der in eine mehrstufige Saugstrahlpumpe 7 mündet. Die Motorentlüftung 6 stellt eine weitere Verbindung zwischen dem Kurbelgehäuse 4 und der Saugstrahlpumpe 7 dar. Ein weiterer Abzweig der Motorentlüftung 6 führt in der hier besonders bevorzugten Ausführungsform zu einem Bypassventil 8 und/ oder einem Rückschlagventil 8, das den Gasstrom bei geringem oder nicht vorhandenem Treibstrahl in der Saugstrahlpumpe 7 über die Blow-By-Gasrückführung 9 zur Ansaugstrecke 2 zwischen dem Luftfilter 1 und dem Turbolader 3 zurückführt.In the Figure 1 a preferred embodiment of the present invention is illustrated. Starting from an air filter 1, the blow-by gas is fed to the crankcase 4 via the turbocharger 3 and the charge air line 5. The charge air path 5 has a branch which opens into a multi-stage suction jet pump 7. The engine ventilation 6 represents a further connection between the crankcase 4 and the suction jet pump 7. Another branch of the engine ventilation 6 leads in the particularly preferred embodiment to a bypass valve 8 and / or a check valve 8, which controls the gas flow when there is little or no propulsion jet in the ejector pump 7 via the blow-by gas recirculation 9 to the intake path 2 between the air filter 1 and the turbocharger 3.

Wenn der Motor im Turbobetrieb arbeitet, ist durch den höheren Druck in Strömungsrichtung hinter der Saugstrahlpumpe 7 das Ventil 8 geschlossen. Arbeitet der Motor im nicht aufgeladenen Betrieb, so kann das Blow-By-Gas ohne Druckverlust an der Pumpe 7 vorbeiströmen.When the engine is operating in turbo mode, the valve 8 is closed due to the higher pressure downstream of the suction jet pump 7 in the direction of flow. If the engine is working in non-charged mode, the blow-by gas can flow past the pump 7 without any loss of pressure.

Damit wird durch Kombination der Saugstrahlpumpe 7 mit dem Bypassventil 8 und/ oder dem Rückschlagventil 8 dieser Betriebszustand optimiert.This operating state is thus optimized by combining the suction jet pump 7 with the bypass valve 8 and / or the check valve 8.

In der Fig. 2 wird eine bevorzugte Ausführungsform der vorliegenden Erfindung dargestellt, bei der die Strahlpumpe 7 in eine Zylinderkopfhaube eingefügt ist.In the Fig. 2 a preferred embodiment of the present invention is shown in which the jet pump 7 is inserted into a cylinder head cover.

Die Pumpe 7 wird vorzugsweise aus Kunststoff, beispielsweise Polyamid hergestellt. Dabei können Teile der Pumpe auch in der Zylinderkopfhaube 10 abgebildet sein.The pump 7 is preferably made of plastic, for example polyamide. Parts of the pump can also be shown in the cylinder head cover 10.

In einer weiteren Ausführungsform der vorliegenden Erfindung kann die Saugstrahlpumpe 7 auch in eine Zylinderkopfhaube 10 integriert sein.In a further embodiment of the present invention, the ejector pump 7 can also be integrated into a cylinder head cover 10.

Alternativ hierzu können auch das komplette Bauteil als Modul aus Saugstrahlpumpe 7 mit dem Bypassventil 8 und/ oder dem Rückschlagventil 8 mit Schlauchanschlüssen hergestellt werden.As an alternative to this, the complete component can also be produced as a module from the suction jet pump 7 with the bypass valve 8 and / or the check valve 8 with hose connections.

Claims (4)

  1. An internal combustion engine with a turbocharger (3) between an air filter (1) and a crankcase (4) and a venting assembly comprising a jet suction pump (7), characterized in that said venting assembly has a charge air duct (5) extending between the turbocharger (3) and the crankcase (4), having a branch to an at least two-stage jet suction pump (7), wherein the inlet of said jet suction pump (7) is connected with the crankcase (4) through the engine ventilation (6), and the outlet of said jet suction pump (7) is connected with the suction duct (2) extending between the air filter (1) and the turbocharger (3), for recirculating blow-by gas (9), wherein the venting assembly has at least one bypass valve and/or one check valve (8) in the direction of flow parallel to said jet suction pump (7) and between said crankcase (4) and said suction duct (2).
  2. The internal combustion engine according to claim 1, characterized in that a propulsion jet is pressed through a small nozzle in said jet suction pump (7), so that the jet entrains gas at its circumference, and after the first stage, the volume flow increased by the supply air is subsequently flowed through a second, larger, nozzle and a third, even larger, nozzle, wherein a proportion of gas is again entrained.
  3. The internal combustion engine according to claim 1 or 2, characterized in that said jet suction pump (7) is integrated in a cylinder head cover (10).
  4. The internal combustion engine according to any of claims 1 to 3, characterized in that said jet suction pump (7) is made of plastic, especially polyamide.
EP19186332.3A 2015-01-13 2016-01-07 Combustion engine with multistage suction jet pump Active EP3575613B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015200341.8A DE102015200341A1 (en) 2015-01-13 2015-01-13 Multi-stage suction jet pump
PCT/EP2016/050164 WO2016113166A1 (en) 2015-01-13 2016-01-07 Multi-stage jet suction pump
EP16700111.4A EP3245407B1 (en) 2015-01-13 2016-01-07 Multi-stage jet suction pump

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP16700111.4A Division EP3245407B1 (en) 2015-01-13 2016-01-07 Multi-stage jet suction pump
EP16700111.4A Division-Into EP3245407B1 (en) 2015-01-13 2016-01-07 Multi-stage jet suction pump

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Publication Number Publication Date
EP3575613A1 EP3575613A1 (en) 2019-12-04
EP3575613B1 true EP3575613B1 (en) 2021-07-21

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EP19186332.3A Active EP3575613B1 (en) 2015-01-13 2016-01-07 Combustion engine with multistage suction jet pump
EP16700111.4A Active EP3245407B1 (en) 2015-01-13 2016-01-07 Multi-stage jet suction pump

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US (1) US10301987B2 (en)
EP (2) EP3575613B1 (en)
CN (1) CN107135659B (en)
DE (2) DE102015200341A1 (en)
WO (1) WO2016113166A1 (en)

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FR3063304B1 (en) * 2017-02-28 2019-03-22 Akwel DEVICE FOR SUCTION AND DECANTATION OF A CARTER GAS AND ASSOCIATED INSTALLATION
DE202018104879U1 (en) * 2018-08-24 2018-09-25 Polytec Plastics Germany Gmbh & Co. Kg tank ventilation
DE102020105328B4 (en) 2020-02-28 2023-06-01 Polytec Plastics Germany Gmbh & Co. Kg Multi-stage ejector pump for a turbocharged internal combustion engine, turbocharger for an internal combustion engine, cylinder head cover with oil separator
DE102020118330A1 (en) * 2020-07-10 2022-01-13 Norma Germany Gmbh Nozzle device for a jet pump and jet pump
CN112455642B (en) * 2020-10-29 2022-02-01 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Condensate water supercharging device and condensate water system based on steam injection

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Publication number Publication date
EP3575613A1 (en) 2019-12-04
CN107135659B (en) 2020-04-21
EP3245407A1 (en) 2017-11-22
EP3245407B1 (en) 2019-12-04
WO2016113166A1 (en) 2016-07-21
US10301987B2 (en) 2019-05-28
US20180274410A1 (en) 2018-09-27
DE202016008766U1 (en) 2019-07-25
CN107135659A (en) 2017-09-05
DE102015200341A1 (en) 2016-07-14

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