EP3415750B1 - Device for introduction of air with cooling chamber venting for a combustion engine - Google Patents

Device for introduction of air with cooling chamber venting for a combustion engine Download PDF

Info

Publication number
EP3415750B1
EP3415750B1 EP18173768.5A EP18173768A EP3415750B1 EP 3415750 B1 EP3415750 B1 EP 3415750B1 EP 18173768 A EP18173768 A EP 18173768A EP 3415750 B1 EP3415750 B1 EP 3415750B1
Authority
EP
European Patent Office
Prior art keywords
venting
channel
collective
cylinder
conducting air
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
EP18173768.5A
Other languages
German (de)
French (fr)
Other versions
EP3415750A1 (en
Inventor
Thomas Schneider
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.)
MAN Truck and Bus SE
Original Assignee
MAN Truck and Bus SE
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 MAN Truck and Bus SE filed Critical MAN Truck and Bus SE
Publication of EP3415750A1 publication Critical patent/EP3415750A1/en
Application granted granted Critical
Publication of EP3415750B1 publication Critical patent/EP3415750B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0285—Venting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/028—Deaeration devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/024—Cooling cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts

Definitions

  • the invention relates to a device for guiding air, in particular an intake air distributor pipe, for an internal combustion engine.
  • a coolant can flow through cylinder heads for cooling.
  • the coolant flows in a so-called coolant space or coolant core, which is also referred to as the water core when water is used as the coolant.
  • coolant space which is also referred to as the water core when water is used as the coolant.
  • each cylinder head has a separate coolant space.
  • the coolant in the coolant space can boil up locally at points with a low flow velocity and a high local temperature. Vapor bubbles form in the process. This vapor must be removed from the coolant space, i. H. the coolant compartment must be vented.
  • the EP 1 514 020 A1 discloses a cylinder head of a reciprocating piston internal combustion engine with a cylinder head lower part, a cylinder head cover and a frame for mounting a shaft and axis of a gas exchange control.
  • the frame is mounted on the lower part of the cylinder head and the cylinder head cover is placed on the frame.
  • the frame has a device for venting the cooling system of the internal combustion engine.
  • a duct for cooling system ventilation runs in the longitudinal outer wall over the entire length of the frame, which has a flow connection on each cylinder to the geodetically highest point of the water space of the cylinder head and thus the entire cylinder.
  • the assembly of the soldered pipes can be complex. Installation may require additional seals, fasteners, etc.
  • the DE 199 20 195 A1 discloses an intake manifold system for a multi-cylinder direct injection internal combustion engine.
  • the intake pipe system has several intake channels.
  • Another line for cooling water of the internal combustion engine is integrated into the walls of the intake ducts. This additional line is connected to the cooling water jacket of the cylinder head via a connection hole.
  • the invention is based on the object of providing improved ventilation for the coolant spaces, in particular in the case of a plurality of single-cylinder cylinder heads.
  • the improved ventilation should preferably be easier to assemble and / or require fewer components.
  • the device for guiding air for the internal combustion engine with a plurality of cylinder heads is designed according to claim 1.
  • the air distribution duct, the individual ventilation ducts and the collective ventilation duct are thus all integrated in the tubular body. This means that it is no longer necessary to connect separate soldered pipes to the individual cylinder heads for venting the respective coolant spaces.
  • the inlet air distributor pipe is particularly suitable for receiving the ventilation ducts, since it is already arranged in the area of the cylinder heads for introducing the inlet air.
  • the air distribution duct is used to distribute the intake air to the cylinders of the internal combustion engine.
  • the air distribution channel and / or the tubular body can be arranged downstream of an air inlet manifold (intake manifold) and / or upstream of inlet channels of the cylinder heads.
  • the air distribution channel can in particular be provided separately (separately, fluidically isolated) from the individual ventilation ducts and / or separately (separately, fluidically isolated) from the collective ventilation duct.
  • Opposite ends of the collective ventilation duct can each be sealed with a cover.
  • One end of the individual ventilation duct can be sealed with a cover.
  • the other end of the individual ventilation duct can establish a connection with the coolant space.
  • the collective ventilation duct extends along a longitudinal direction of the tubular body and / or parallel to the air distribution duct. This has the advantage that individual ventilation channels can open into the collective ventilation channel along the (entire) length of the tubular body.
  • the collective ventilation channel is drilled.
  • the collective ventilation duct is drilled in particular using a deep drilling method.
  • the collective ventilation duct is cast.
  • the production of a hole is easy to implement in terms of production technology.
  • the use of a deep pre-process enables a particularly long collecting ventilation duct, which can extend, for example, along the entire length of the tubular body. If, on the other hand, the collective ventilation duct is cast, the production of the collective ventilation duct can be carried out directly during the casting of the tubular body.
  • the plurality of individual ventilation channels are drilled.
  • the majority of individual ventilation channels are cast.
  • the drilling of individual ventilation channels is easy to implement in terms of production technology.
  • the individual ventilation channels can also be formed directly when the tubular body is being cast.
  • the collective ventilation duct and / or the plurality of individual ventilation ducts are each drilled on two sides.
  • the respective channel is drilled from both ends of the channel.
  • the plurality of individual ventilation ducts is provided in a cylinder-selective manner for each cooling chamber of the plurality of coolant chambers of each cylinder head of the plurality of cylinder heads. In this way, each individual cooling space of the plurality of cylinder heads can be vented through the individual ventilation ducts and the collective ventilation duct.
  • the collective ventilation channel can be vented through the ventilation outlet channel and the steam can be conducted to the collecting container.
  • the ventilation outlet channel is preferably drilled or cast as a tapping of the collective ventilation channel. This makes it possible to manufacture the ventilation outlet channel in a simple manner.
  • the ventilation outlet channel advantageously extends in a radial direction with respect to a longitudinal axis of the tubular body.
  • the collective ventilation duct and / or the plurality of individual ventilation ducts extend in a pipe wall of the pipe body.
  • the pipe wall can surround the air distribution duct.
  • the collective ventilation duct and the individual ventilation ducts can thus be provided in the tubular body in a space-saving manner.
  • the plurality of individual ventilation ducts each extend in a circumferential direction of the tubular body in the pipe wall of the tubular body.
  • the collective ventilation duct extends in a longitudinal direction of the tubular body in the pipe wall of the tubular body.
  • the combination of the directions of extension of the individual ventilation ducts and the collective ventilation duct enable the ducts to be arranged in a simple manner with short distances.
  • the plurality of individual ventilation channels each have a first, in particular drilled, section and a second, in particular drilled, section.
  • the first section and the second section meet at an angle, in particular an obtuse angle.
  • the first section of the individual ventilation duct can in particular extend in a straight line and / or the second section of the individual ventilation duct can in particular extend in a straight line.
  • the collective ventilation channel extends in particular in a straight line.
  • the first section is arranged upstream of the second section and the second section opens into the collective ventilation duct.
  • the second section can, for example, cross the collective ventilation duct.
  • the plurality of individual ventilation channels are arranged at a uniform distance from one another along a longitudinal direction of the tubular body. This has the advantage that evenly spaced apart and identically designed cylinder heads with corresponding coolant spaces can be connected to the individual ventilation ducts.
  • the invention also relates to an arrangement.
  • the arrangement has a plurality of single-cylinder cylinder heads (single cylinder heads) for covering a plurality of cylinders of an internal combustion engine.
  • the single-cylinder cylinder heads each have a coolant space, in particular a water core, for cooling the respective single-cylinder cylinder head.
  • the arrangement also has a device for guiding air as disclosed herein.
  • the plurality of individual ventilation channels are each connected to one of the plurality of coolant spaces.
  • the single-cylinder cylinder heads can in particular be constructed identically and / or arranged at the same distance from one another.
  • the device for guiding air in particular the tubular body, can be mounted on the single-cylinder cylinder heads.
  • the invention relates to a motor vehicle with a device for guiding air as disclosed herein or an arrangement as disclosed herein.
  • the Figures 1 and 2 show various views of a device designed as an inlet air distribution pipe 10 for guiding air.
  • the inlet air distribution pipe 10 is shown in such a way that hidden elements or elements arranged in the interior of the inlet air distribution pipe 10 are shown in dashed lines.
  • the inlet air distribution pipe 10 can be part of an internal combustion engine (not shown) of a motor vehicle, in particular a commercial vehicle.
  • the utility vehicle can be, for example, an omnibus or a truck.
  • the intake air distribution pipe 10 has a pipe body 12.
  • An air distribution channel 14, a plurality of individual ventilation channels 16 and a collective ventilation channel 18 extend in the tubular body 12.
  • the tubular body 12 can, for example, be a metal casting, for example made of an aluminum alloy.
  • the inlet air distribution pipe 10 can be mounted, in particular screwed, to a cylinder head.
  • the intake air manifold 10 may be molded directly onto the cylinder head.
  • the intake air manifold 10 and the cylinder head can be formed as an integral casting.
  • the air distribution channel 14 extends between an inlet opening 20 and a plurality of outlet openings 22.
  • Each outlet opening 22 can be connected to an inlet channel in a cylinder head. In the assembled state, each outlet opening 22 opens into a respective inlet channel of a plurality of single-cylinder cylinder heads (single cylinder heads).
  • the air distribution channel 14 extends along a longitudinal direction of the tubular body 12.
  • the air distribution channel 14 can be formed when the tubular body 12 is cast.
  • the individual ventilation ducts 16 and the collective ventilation duct 18 are provided separately from the air distribution duct 14 in the tubular body 12. In the embodiment shown, six individual ventilation channels 16 for venting six cooling spaces of the individual cylinder heads are shown.
  • the individual ventilation channels 16 are arranged at the same distance along a longitudinal direction of the tubular body 12.
  • the individual ventilation ducts 16 extend in a pipe wall (outer wall) of the air distribution duct 14.
  • the individual ventilation ducts 16 extend in a circumferential direction around a longitudinal axis of the tubular body 12.
  • the individual ventilation ducts 16 can be drilled or cast. In particular, the individual ventilation channels 16 can be drilled on both sides (cf. exemplary statements in the description of FIG Figure 3 ).
  • the individual ventilation channels 16 open into the collective ventilation channel 18.
  • the collective ventilation channel 18 extends in the pipe wall (outer wall) of the air distribution channel 14.
  • the collective ventilation channel 18 extends along a longitudinal direction of the tubular body 12 parallel to the air distribution channel 14.
  • the collective ventilation channel 18 can be drilled or cast.
  • the collective ventilation channel 18 can be drilled on one side or preferably on both sides by a deep drilling method.
  • the two ends of the collective ventilation channel 18 can be provided with a cover for sealing.
  • the tubular body 12 has a ventilation outlet channel 24 through which the steam can be discharged from the coolant space of the cylinder head into a collecting container (not shown).
  • the vent outlet channel 24 may be drilled or cast.
  • the ventilation outlet channel 24 can be drilled as a piercing of the collective ventilation channel 18.
  • the vent outlet channel 24 extends in a radial direction with respect to a longitudinal axis of the tubular body 12.
  • FIG. 13 shows the intake air distribution pipe 10 in an assembled state on a single cylinder head 26.
  • the sectional plane of FIG Figure 3 is chosen so that a single ventilation duct 16 extends in the plane of the section.
  • the remaining individual ventilation ducts and individual cylinder heads can be constructed similarly or identically.
  • the cylinder head 26 has an inlet channel 28 and a coolant space (cooling jacket) 30.
  • a coolant space cooling jacket
  • the intake passage 28 leads to a combustion chamber of a cylinder of the internal combustion engine.
  • the air distribution channel 14 opens into the inlet channel 28.
  • a coolant for example water, circulates in the coolant space 30 to cool the cylinder head 26 and the components arranged therein.
  • a ventilation channel 32 connects an upper section of the coolant space 30 to the individual ventilation channel 16.
  • the ventilation channel 32 can in particular be drilled for piercing the coolant space 30.
  • the resulting vapor is transported from the coolant chamber 30 through the ventilation duct 32 of the cylinder head 26 and the individual ventilation duct 16 of the intake air distribution pipe 10 to the collective ventilation duct 18.
  • the steam is discharged from the collective ventilation channel 18 via the ventilation outlet channel 24 (see FIGS. 1 and 2).
  • the individual ventilation channel 16 has a first section 16A and a second section 16B.
  • the first section 16A extends between the vent channel 32 of the cylinder head 26 and the second section 16B.
  • the second section 16B extends between the first section 16A via the collective vent channel 18 to an opening 16C.
  • the opening 16C can be sealed with a lid.
  • the first section 16A is drilled, in particular, starting from an end opposite the second section 16B.
  • the second section 16B is drilled in particular starting from the opening 16C.
  • the first section 16A and the second section 16B extend through the tubular body 12, meet at an obtuse angle and together form the individual ventilation channel 16.
  • the first section 16A extends above an outlet region of the air distribution duct 14.
  • the ventilation duct 32 extends above the inlet duct 28.
  • the intake air manifold 10 integrates the function of the Air distribution to the individual cylinders (cylinder heads) and the function of venting the cooling chambers of the individual cylinder heads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Hybrid Electric Vehicles (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Luftführung, insbesondere ein Einlassluftver-teilerrohr, für einen Verbrennungsmotor.The invention relates to a device for guiding air, in particular an intake air distributor pipe, for an internal combustion engine.

Zylinderköpfe können zur Kühlung von einem Kühlmittel durchflossen werden. Das Kühlmittel fließt in einem sogenannten Kühlmittelraum oder Kühlmittelkern, der bei Verwendung von Wasser als Kühlmittel auch als Wasserkern bezeichnet wird. Bei Verwendung von Einzylinder-Zylinderköpfen (Einzelzylinderköpfen) weist jeder Zylinderkopf einen separaten Kühlmittelraum auf.A coolant can flow through cylinder heads for cooling. The coolant flows in a so-called coolant space or coolant core, which is also referred to as the water core when water is used as the coolant. When using single-cylinder cylinder heads (single cylinder heads), each cylinder head has a separate coolant space.

Im Kühlmittelraum eines Zylinderkopfes kann an Stellen mit einer niedrigen Strömungsge-schwindigkeit und einer hohen lokalen Temperatur das Kühlmittel im Kühlmittelraum lokal aufkochen. Dabei bilden sich Dampfblasen. Dieser Dampf muss aus dem Kühlmittelraum abgeführt werden, d. h. der Kühlmittelraum muss entlüftet werden.In the coolant space of a cylinder head, the coolant in the coolant space can boil up locally at points with a low flow velocity and a high local temperature. Vapor bubbles form in the process. This vapor must be removed from the coolant space, i. H. the coolant compartment must be vented.

Die EP 1 514 020 A1 offenbart einen Zylinderkopf einer Hubkolbenbrennkraftmaschine mit einem Zylinderkopfunterteil, einer Zylinderkopfhaube und einem Rahmen zur Lagerung einer Welle und Achse einer Gaswechselsteuerung. Der Rahmen ist auf dem Zylinderkopfunterteil gelagert und die Zylinderkopfhaube ist auf den Rahmen aufgesetzt. Der Rahmen weist eine Einrichtung zur Entlüftung des Kühlsystems der Brennkraftmaschine auf. Im Einzelnen verläuft in der längsseitigen Außenwand über die ganze Länge des Rahmens ein Kanal zur Kühlsystementlüftung, der an jedem Zylinder eine Strömungsverbindung zur geodätisch höchsten Stelle des Wasserraumes des Zylinderkopfes und somit des gesamten Zylinders aufweist.the EP 1 514 020 A1 discloses a cylinder head of a reciprocating piston internal combustion engine with a cylinder head lower part, a cylinder head cover and a frame for mounting a shaft and axis of a gas exchange control. The frame is mounted on the lower part of the cylinder head and the cylinder head cover is placed on the frame. The frame has a device for venting the cooling system of the internal combustion engine. In detail, a duct for cooling system ventilation runs in the longitudinal outer wall over the entire length of the frame, which has a flow connection on each cylinder to the geodetically highest point of the water space of the cylinder head and thus the entire cylinder.

Es ist bekannt, den Dampf über Entlüftungskanäle, die mit dem Kühlmittelraum verbunden sind, abzuführen. Beispielsweise werden bei Verwendung von Einzylinder-Zylinderköpfen separate, verlötete Rohrleitungen als Entlüftungsleitungen mit den Kühlmittelräumen verbunden. Die Rohrleitungen führen zu einem Behälter, zu dem der abgeführte Dampf geleitet wird.It is known to discharge the steam via ventilation ducts which are connected to the coolant space. For example, when using single-cylinder cylinder heads, separate, soldered pipelines are connected to the coolant chambers as vent lines. The pipes lead to a container to which the extracted steam is directed.

Die Montage der verlöteten Rohrleitungen kann aufwendig sein. Die Montage kann zusätzliche Dichtungen, Verbindungsmittel usw. erfordern.The assembly of the soldered pipes can be complex. Installation may require additional seals, fasteners, etc.

Die DE 199 20 195 A1 offenbart ein Ansaugrohrsystem für eine mehrzylindrige direkteinsprit-zende Brennkraftmaschine. Das Ansaugrohrsystem weist mehrere Ansaugkanäle auf. In die Wandungen der Ansaugkanäle ist eine weitere Leitung für Kühlwasser der Brennkraftma-schine integriert. Diese weitere Leitung steht über eine Anschlussbohrung mit dem Kühlwas-sermantel des Zylinderkopfes in Verbindung.the DE 199 20 195 A1 discloses an intake manifold system for a multi-cylinder direct injection internal combustion engine. The intake pipe system has several intake channels. Another line for cooling water of the internal combustion engine is integrated into the walls of the intake ducts. This additional line is connected to the cooling water jacket of the cylinder head via a connection hole.

Aus der JP S55108215 U und der JP 2010 048114 A sind Kühlsysteme bekannt, bei denen in einer Wandung eines Abgaskanals eine Kühlwasserleitung zum Zirkulieren von Kühlwasser angeordnet ist.From the JP S55108215 U and the JP 2010 048114 A cooling systems are known in which a cooling water line for circulating cooling water is arranged in a wall of an exhaust gas duct.

Der Erfindung liegt die Aufgabe zu Grunde, eine verbesserte Entlüftung für die Kühlmittelräume insbesondere bei einer Mehrzahl von Einzylinder-Zylinderköpfen vorzusehen. Vorzugsweise soll die verbesserte Entlüftung montagefreundlicher sein und/oder weniger Bauteile be-nötigen.The invention is based on the object of providing improved ventilation for the coolant spaces, in particular in the case of a plurality of single-cylinder cylinder heads. The improved ventilation should preferably be easier to assemble and / or require fewer components.

Die Aufgaben werden gelöst durch eine Vorrichtung zur Luftführung, insbesondere ein Ein-lassluftverteilerrohr, für einen Verbrennungsmotor gemäß dem unabhängigen Anspruch. Vorteilhafte Weiterbildungen sind in den abhängigen Ansprüchen und der Beschreibung angege-ben.The objects are achieved by a device for guiding air, in particular an intake air distributor pipe, for an internal combustion engine according to the independent claim. Advantageous developments are given in the dependent claims and the description.

Die Vorrichtung zur Luftführung für den Verbrennungsmotor mit einer Mehrzahl von Zylinderköpfen ist gemäß Anspruch 1 ausgeführt.The device for guiding air for the internal combustion engine with a plurality of cylinder heads is designed according to claim 1.

Der Luftverteilungskanal, die Einzelentlüftungskanäle und der Sammelentlüftungskanal sind somit alle in dem Rohrkörper integriert. Damit ist es nicht länger notwendig, separate verlötete Rohrleitungen mit den einzelnen Zylinderköpfen zur Entlüftung der jeweiligen Kühlmittelräume zu verbinden. Das Einlassluftverteilerrohr ist besonders geeignet zur Aufnahme der Entlüf-tungskanäle, da es ohnehin im Bereich der Zylinderköpfe zum Einleiten der Einlassluft angeordnet ist.The air distribution duct, the individual ventilation ducts and the collective ventilation duct are thus all integrated in the tubular body. This means that it is no longer necessary to connect separate soldered pipes to the individual cylinder heads for venting the respective coolant spaces. The inlet air distributor pipe is particularly suitable for receiving the ventilation ducts, since it is already arranged in the area of the cylinder heads for introducing the inlet air.

Der Luftverteilungskanal dient zur Verteilung der Einlassluft auf die Zylinder des Verbren-nungsmotors.The air distribution duct is used to distribute the intake air to the cylinders of the internal combustion engine.

Der Luftverteilungskanal und/oder der Rohrkörper können stromabwärts eines Luftein-lasskrümmers (Ansaugkrümmers) angeordnet und/oder stromaufwärts von Einlasskanälen der Zylinderköpfe angeordnet sein.The air distribution channel and / or the tubular body can be arranged downstream of an air inlet manifold (intake manifold) and / or upstream of inlet channels of the cylinder heads.

Der Luftverteilungskanal kann insbesondere separat (getrennt, fluidisch isoliert) von den Einzelentlüftungskanälen und/oder separat (getrennt, fluidisch isoliert) von dem Sammelentlüf-tungskanal vorgesehen sein.The air distribution channel can in particular be provided separately (separately, fluidically isolated) from the individual ventilation ducts and / or separately (separately, fluidically isolated) from the collective ventilation duct.

Gegenüberliegende Enden des Sammelentlüftungskanals können jeweils mit einem Deckel abgedichtet sein.Opposite ends of the collective ventilation duct can each be sealed with a cover.

Ein Ende des Einzelentlüftungskanals kann mit einem Deckel abgedichtet sein. Das andere Ende des Einzelentlüftungskanals kann eine Verbindung mit dem Kühlmittelraum herstellen.One end of the individual ventilation duct can be sealed with a cover. The other end of the individual ventilation duct can establish a connection with the coolant space.

In einer Ausführungsform erstreckt sich der Sammelentlüftungskanal entlang einer Längsrichtung des Rohrkörpers und/oder parallel zum Luftverteilungskanal. Dies hat den Vorteil, dass entlang der (gesamten) Länge des Rohrkörpers Einzelentlüftungskanäle in den Sammelentlüftungskanal münden können.In one embodiment, the collective ventilation duct extends along a longitudinal direction of the tubular body and / or parallel to the air distribution duct. This has the advantage that individual ventilation channels can open into the collective ventilation channel along the (entire) length of the tubular body.

In einer weiteren Ausführungsform ist der Sammelentlüftungskanal gebohrt. Der Sammelentlüftungskanal ist insbesondere durch ein Tiefbohrverfahren gebohrt. Alternativ ist der Sammelentlüftungskanal gegossen. Die Herstellung einer Bohrung ist fertigungstechnisch einfach umzusetzen. Die Verwendung eines Tiefvorverfahrens ermöglicht einen besonders langen Sammelentlüftungskanal, der sich beispielsweise entlang der gesamten Länge des Rohrkörpers erstrecken kann. Wird der Sammelentlüftungskanal hingegen gegossen, so kann die Herstellung des Sammelentlüftungskanals direkt beim Gießen des Rohrkörpers vorgenommen werden.In a further embodiment, the collective ventilation channel is drilled. The collective ventilation duct is drilled in particular using a deep drilling method. Alternatively, the collective ventilation duct is cast. The production of a hole is easy to implement in terms of production technology. The use of a deep pre-process enables a particularly long collecting ventilation duct, which can extend, for example, along the entire length of the tubular body. If, on the other hand, the collective ventilation duct is cast, the production of the collective ventilation duct can be carried out directly during the casting of the tubular body.

In einem Ausführungsbeispiel ist die Mehrzahl von Einzelentlüftungskanälen gebohrt. Alterna-tiv ist die Mehrzahl von Einzelentlüftungskanälen gegossen. Die Bohrung von Einzelentlüf-tungskanälen ist fertigungstechnisch einfach umzusetzen. Andererseits können die Einzelentlüftungskanäle auch direkt beim Gießen des Rohrkörpers ausgebildet werden.In one embodiment, the plurality of individual ventilation channels are drilled. Alternatively, the majority of individual ventilation channels are cast. The drilling of individual ventilation channels is easy to implement in terms of production technology. On the other hand, the individual ventilation channels can also be formed directly when the tubular body is being cast.

In einem weiteren Ausführungsbeispiel sind der Sammelentlüftungskanal und/oder die Mehrzahl von Einzelentlüftungskanälen jeweils zweiseitig gebohrt. Mit anderen Worten gesagt, ist der jeweilige Kanal von beiden Enden des Kanals aus gebohrt.In a further exemplary embodiment, the collective ventilation duct and / or the plurality of individual ventilation ducts are each drilled on two sides. In other words, the respective channel is drilled from both ends of the channel.

In einer Ausführungsvariante ist die Mehrzahl von Einzelentlüftungskanälen zylinderselektiv für jeden Kühlraum der Mehrzahl von Kühlmittelräumen eines jeden Zylinderkopfes der Mehrzahl von Zylinderköpfen vorgesehen. Damit kann jeder einzelne Kühlraum der Mehrzahl von Zylinderköpfen durch die Einzelentlüftungskanäle und den Sammelentlüftungskanal entlüftet werden.In one embodiment variant, the plurality of individual ventilation ducts is provided in a cylinder-selective manner for each cooling chamber of the plurality of coolant chambers of each cylinder head of the plurality of cylinder heads. In this way, each individual cooling space of the plurality of cylinder heads can be vented through the individual ventilation ducts and the collective ventilation duct.

Durch den Entlüftungsauslasskanal kann der Sammelentlüftungskanal entlüftet und der Dampf zu dem Auffangbehälter geleitet werden.The collective ventilation channel can be vented through the ventilation outlet channel and the steam can be conducted to the collecting container.

Vorzugsweise ist der Entlüftungsauslasskanal als ein Anstich des Sammelentlüftungskanals gebohrt oder gegossen. Dies ermöglicht es, den Entlüftungsauslasskanal auf einfache Weise herzustellen.The ventilation outlet channel is preferably drilled or cast as a tapping of the collective ventilation channel. This makes it possible to manufacture the ventilation outlet channel in a simple manner.

Vorteilhafterweise erstreckt sich der Entlüftungsauslasskanal in einer Radialrichtung bezüglich einer Längsachse des Rohrkörpers.The ventilation outlet channel advantageously extends in a radial direction with respect to a longitudinal axis of the tubular body.

In einer Weiterbildung erstrecken sich der Sammelentlüftungskanal und/oder die Mehrzahl von Einzelentlüftungskanälen in einer Rohrwand des Rohrkörpers. Die Rohrwand kann den Luftverteilungskanal umgeben. Somit können der Sammelentlüftungskanal und die Einzelentlüf-tungskanäle platzsparend im Rohrkörper vorgesehen sein.In a further development, the collective ventilation duct and / or the plurality of individual ventilation ducts extend in a pipe wall of the pipe body. The pipe wall can surround the air distribution duct. The collective ventilation duct and the individual ventilation ducts can thus be provided in the tubular body in a space-saving manner.

In einer vorteilhaften Weiterbildung erstreckt sich die Mehrzahl von Einzelentlüftungskanälen jeweils in einer Umfangsrichtung des Rohrkörpers in der Rohrwand des Rohrkörpers In einer weiteren vorteilhaften Weiterbildung erstreckt sich der Sammelentlüftungskanal in einer Längsrichtung des Rohrkörpers in der Rohrwand des Rohrkörpers.In an advantageous development, the plurality of individual ventilation ducts each extend in a circumferential direction of the tubular body in the pipe wall of the tubular body. In a further advantageous development, the collective ventilation duct extends in a longitudinal direction of the tubular body in the pipe wall of the tubular body.

Die Kombination der Erstreckungsrichtungen der Einzelentlüftungskanäle und des Sammelentlüftungskanals ermöglichen einen einfache Anordnung der Kanäle mit kurzen Wegstrecken.The combination of the directions of extension of the individual ventilation ducts and the collective ventilation duct enable the ducts to be arranged in a simple manner with short distances.

In einer Ausführungsform weisen die Mehrzahl von Einzelentlüftungskanälen jeweils einen ersten, insbesondere gebohrten, Abschnitt und einen zweiten, insbesondere gebohrten, Abschnitt auf. Der erste Abschnitt und der zweite Abschnitt treffen in einem Winkel, insbesondere einem stumpfen Winkel, aufeinander. Dies hat den Vorteil, dass die Einzelentlüftungskanäle insbesondere in einer Umfangsrichtung der Rohrwand des Rohrkörpers angeordnet werden können, ohne eine komplexe Geometrie für die Einzelentlüftungskanäle vorzusehen.In one embodiment, the plurality of individual ventilation channels each have a first, in particular drilled, section and a second, in particular drilled, section. The first section and the second section meet at an angle, in particular an obtuse angle. This has the advantage that the individual ventilation channels can be arranged in particular in a circumferential direction of the pipe wall of the tubular body without providing a complex geometry for the individual ventilation channels.

Der erste Abschnitt des Einzelentlüftungskanals kann sich insbesondere gradlinig erstrecken und/oder der zweite Abschnitt des Einzelentlüftungskanals kann sich insbesondere gradlinig erstrecken.The first section of the individual ventilation duct can in particular extend in a straight line and / or the second section of the individual ventilation duct can in particular extend in a straight line.

Es ist auch denkbar, dass sich der Sammelentlüftungskanal insbesondere gradlinig erstreckt.It is also conceivable that the collective ventilation channel extends in particular in a straight line.

In einer weiteren Ausführungsform ist der erste Abschnitt stromaufwärts des zweiten Abschnitts angeordnet und der zweite Abschnitt mündet in den Sammelentlüftungskanal. Der zweite Abschnitt kann den Sammelentlüftungskanal beispielsweise kreuzen.In a further embodiment, the first section is arranged upstream of the second section and the second section opens into the collective ventilation duct. The second section can, for example, cross the collective ventilation duct.

In einem Ausführungsbeispiel ist die Mehrzahl von Einzelentlüftungskanälen in einem gleichmäßigen Abstand zueinander entlang einer Längsrichtung des Rohrkörpers angeordnet. Dies hat den Vorteil, dass gleichmäßig voneinander beabstandete und identisch ausgebildete Zylinderköpfe mit entsprechenden Kühlmittelräumen mit den einzelnen Entlüftungskanälen verbunden werden können.In one embodiment, the plurality of individual ventilation channels are arranged at a uniform distance from one another along a longitudinal direction of the tubular body. This has the advantage that evenly spaced apart and identically designed cylinder heads with corresponding coolant spaces can be connected to the individual ventilation ducts.

Die Erfindung betrifft auch eine Anordnung. Die Anordnung weist eine Mehrzahl von Einzylinder-Zylinderköpfen (Einzelzylinderköpfe) zur Abdeckung einer Mehrzahl von Zylindern eines Verbrennungsmotors auf. Die Einzylinder-Zylinderköpfe weisen jeweils einen Kühlmittelraum, insbesondere einen Wasserkern, zur Kühlung des jeweiligen Einzylinder-Zylinderkopfes auf. Die Anordnung weist zudem eine Vorrichtung zur Luftführung wie hierin offenbart auf. Die Mehrzahl von Einzelentlüftungskanälen ist jeweils mit einem der Mehrzahl von Kühlmittelräu-men verbunden.The invention also relates to an arrangement. The arrangement has a plurality of single-cylinder cylinder heads (single cylinder heads) for covering a plurality of cylinders of an internal combustion engine. The single-cylinder cylinder heads each have a coolant space, in particular a water core, for cooling the respective single-cylinder cylinder head. The arrangement also has a device for guiding air as disclosed herein. The plurality of individual ventilation channels are each connected to one of the plurality of coolant spaces.

Die Einzylinder-Zylinderköpfe können insbesondere identisch aufgebaut und/oder in einem gleichen Abstand voneinander beabstandet angeordnet sein.The single-cylinder cylinder heads can in particular be constructed identically and / or arranged at the same distance from one another.

Die Vorrichtung zur Luftführung, insbesondere der Rohrkörper, kann an die Einzylinder-Zylinderköpfe montiert sein.The device for guiding air, in particular the tubular body, can be mounted on the single-cylinder cylinder heads.

Zusätzlich betrifft die Erfindung ein Kraftfahrzeug mit einer Vorrichtung zur Luftführung wie hierin offenbart oder einer Anordnung wie hierin offenbart.In addition, the invention relates to a motor vehicle with a device for guiding air as disclosed herein or an arrangement as disclosed herein.

Die zuvor beschriebenen bevorzugten Ausführungsformen und Merkmale der Erfindung sind beliebig miteinander kombinierbar. Weitere Einzelheiten und Vorteile der Erfindung werden im Folgenden unter Bezug auf die beigefügten Zeichnungen beschrieben. Es zeigen:

Figur 1
eine perspektivische Ansicht eines beispielhaften Luftverteilerrohrs; und
Figur 2
eine weitere perspektivische Ansicht des beispielhaften Luftverteilerrohrs; und
Figur 3
eine Schnittansicht durch das beispielhafte Luftverteilerrohr und einen Abschnitt eines Zylinderkopfes.
The preferred embodiments and features of the invention described above can be combined with one another as desired. Further details and advantages of the invention are described below with reference to the accompanying drawings. Show it:
Figure 1
Fig. 3 is a perspective view of an exemplary air distribution tube; and
Figure 2
Figure 3 is another perspective view of the exemplary air distribution tube; and
Figure 3
a sectional view through the exemplary air distribution pipe and a portion of a cylinder head.

Die in den Figuren gezeigten Ausführungsformen stimmen zumindest teilweise überein, so dass ähnliche oder identische Teile mit den gleichen Bezugszeichen versehen sind und zu deren Erläuterung auch auf die Beschreibung der anderen Ausführungsformen bzw. Figuren verwiesen wird, um Wiederholungen zu vermeiden.The embodiments shown in the figures match at least in part, so that similar or identical parts are provided with the same reference symbols and reference is made to the description of the other embodiments or figures for their explanation in order to avoid repetition.

Die Figuren 1 und 2 zeigen verschiedene Ansichten einer als Einlassluftverteilerrohr 10 ausgebildeten Vorrichtung zur Luftführung. Das Einlassluftverteilerrohr 10 ist so dargestellt, dass verdeckte oder im Inneren des Einlassluftverteilerrohrs 10 angeordnete Elemente gestrichelt dargestellt sind. Das Einlassluftverteilerrohr 10 kann ein Teil eines Verbrennungsmotors (nicht dargestellt) eines Kraftfahrzeugs, insbesondere Nutzfahrzeug, sein. Das Nutzfahrzeug kann bspw. ein Omnibus oder ein Lastkraftwagen sein.the Figures 1 and 2 show various views of a device designed as an inlet air distribution pipe 10 for guiding air. The inlet air distribution pipe 10 is shown in such a way that hidden elements or elements arranged in the interior of the inlet air distribution pipe 10 are shown in dashed lines. The inlet air distribution pipe 10 can be part of an internal combustion engine (not shown) of a motor vehicle, in particular a commercial vehicle. The utility vehicle can be, for example, an omnibus or a truck.

Das Einlassluftverteilerrohr 10 weist einen Rohrkörper 12 auf. Im Rohrkörper 12 erstrecken sich ein Luftverteilungskanal 14, eine Mehrzahl von Einzelentlüftungskanälen 16 und ein Sammelentlüftungskanal 18. Der Rohrkörper 12 kann beispielsweise ein Metallgussteil zum Beispiel aus einer Aluminiumlegierung sein.The intake air distribution pipe 10 has a pipe body 12. An air distribution channel 14, a plurality of individual ventilation channels 16 and a collective ventilation channel 18 extend in the tubular body 12. The tubular body 12 can, for example, be a metal casting, for example made of an aluminum alloy.

Das Einlassluftverteilerrohr 10 kann an einen Zylinderkopf montiert, insbesondere angeschraubt werden. In anderen Ausführungsformen kann das Einlassluftverteilerrohr 10 direkt an den Zylinderkopf angegossen sein. Mit anderen Worten gesagt, kann das Einlassluftverteilerrohr 10 und der Zylinderkopf als ein integrales Gussteil ausgebildet sein.The inlet air distribution pipe 10 can be mounted, in particular screwed, to a cylinder head. In other embodiments, the intake air manifold 10 may be molded directly onto the cylinder head. In other words, the intake air manifold 10 and the cylinder head can be formed as an integral casting.

Der Luftverteilungskanal 14 erstreckt sich zwischen einer Eintrittsöffnung 20 und einer Mehrzahl von Austrittsöffnungen 22. Jede Austrittsöffnung 22 ist mit einem Einlasskanal in einem Zylinderkopf verbindbar. Im montierten Zustand mündet jede Austrittsöffnung 22 in einen jeweiligen Einlasskanal einer Mehrzahl von Einzylinder-Zylinderköpfen (Einzelzylinderköpfen).The air distribution channel 14 extends between an inlet opening 20 and a plurality of outlet openings 22. Each outlet opening 22 can be connected to an inlet channel in a cylinder head. In the assembled state, each outlet opening 22 opens into a respective inlet channel of a plurality of single-cylinder cylinder heads (single cylinder heads).

Der Luftverteilungskanal 14 erstreckt sich entlang einer Längsrichtung des Rohrkörpers 12. Der Luftverteilungskanal 14 kann beim Gießen des Rohrkörpers 12 ausgebildet werden.The air distribution channel 14 extends along a longitudinal direction of the tubular body 12. The air distribution channel 14 can be formed when the tubular body 12 is cast.

Die Einzelentlüftungskanäle 16 und der Sammelentlüftungskanal 18 sind separat von dem Luftverteilungskanal 14 im Rohrkörper 12 vorgesehen. In der dargestellten Ausführungsform sind sechs Einzelentlüftungskanäle 16 zur Entlüftung von sechs Kühlräumen der Einzelzylin-derköpfe dargestellt.The individual ventilation ducts 16 and the collective ventilation duct 18 are provided separately from the air distribution duct 14 in the tubular body 12. In the embodiment shown, six individual ventilation channels 16 for venting six cooling spaces of the individual cylinder heads are shown.

Die Einzelentlüftungskanäle 16 sind in einem gleichen Abstand entlang einer Längsrichtung des Rohrkörpers 12 angeordnet. Die Einzelentlüftungskanäle 16 erstrecken sich in einer Rohrwand (Außenwand) des Luftverteilungskanals 14. Die Einzelentlüftungskanäle 16 erstrecken sich in einer Umfangsrichtung um eine Längsachse des Rohrkörpers 12. Die Einzelentlüf-tungskanäle 16 können gebohrt oder gegossen sein. Insbesondere können die Einzelentlüf-tungskanäle 16 zweiseitig gebohrt sein (vgl. beispielhafte Ausführungen hierzu bei der Beschreibung der Figur 3).The individual ventilation channels 16 are arranged at the same distance along a longitudinal direction of the tubular body 12. The individual ventilation ducts 16 extend in a pipe wall (outer wall) of the air distribution duct 14. The individual ventilation ducts 16 extend in a circumferential direction around a longitudinal axis of the tubular body 12. The individual ventilation ducts 16 can be drilled or cast. In particular, the individual ventilation channels 16 can be drilled on both sides (cf. exemplary statements in the description of FIG Figure 3 ).

Die Einzelentlüftungskanäle 16 münden in den Sammelentlüftungskanal 18. Der Sammelentlüftungskanal 18 erstreckt sich in der Rohrwand (Außenwand) des Luftverteilungskanals 14. Der Sammelentlüftungskanal 18 erstreckt sich entlang einer Längsrichtung des Rohrkörpers 12 parallel zum Luftverteilungskanal 14. Der Sammelentlüftungskanal 18 kann gebohrt oder gegossen sein. Insbesondere kann der Sammelentlüftungskanals 18 einseitig oder vorzugsweise zweiseitig durch ein Tiefbohrverfahren gebohrt sein. Die beiden Enden des Sammelentlüftungskanals 18 können zum Abdichten mit einem Deckel versehen sein.The individual ventilation channels 16 open into the collective ventilation channel 18. The collective ventilation channel 18 extends in the pipe wall (outer wall) of the air distribution channel 14. The collective ventilation channel 18 extends along a longitudinal direction of the tubular body 12 parallel to the air distribution channel 14. The collective ventilation channel 18 can be drilled or cast. In particular, the collective ventilation channel 18 can be drilled on one side or preferably on both sides by a deep drilling method. The two ends of the collective ventilation channel 18 can be provided with a cover for sealing.

Der Rohrkörper 12 weist einen Entlüftungsauslasskanal 24 auf, durch den der Dampf aus dem Kühlmittelraum des Zylinderkopfes in einen Auffangbehälter (nicht dargestellt) abführbar ist. Der Entlüftungsauslasskanal 24 kann gebohrt oder gegossen sein. Insbesondere kann der Entlüftungsauslasskanal 24 als ein Anstich des Sammelentlüftungskanals 18 gebohrt sein. Der Entlüftungsauslasskanal 24 erstreckt sich in einer Radialrichtung bezüglich einer Längsachse des Rohrkörpers 12.The tubular body 12 has a ventilation outlet channel 24 through which the steam can be discharged from the coolant space of the cylinder head into a collecting container (not shown). The vent outlet channel 24 may be drilled or cast. In particular, the ventilation outlet channel 24 can be drilled as a piercing of the collective ventilation channel 18. The vent outlet channel 24 extends in a radial direction with respect to a longitudinal axis of the tubular body 12.

Die Figur 3 zeigt das Einlassluftverteilerrohr 10 in einem montierten Zustand an einem Einzelzylinderkopf 26. Die Schnittebene von Figur 3 ist so gewählt, dass sich ein Einzelentlüf-tungskanal 16 in der Schnittebene erstreckt. Die übrigen Einzelentlüftungskanäle und Einzelzylinderköpfe können ähnlich oder identisch aufgebaut sein.the Figure 3 FIG. 13 shows the intake air distribution pipe 10 in an assembled state on a single cylinder head 26. The sectional plane of FIG Figure 3 is chosen so that a single ventilation duct 16 extends in the plane of the section. The remaining individual ventilation ducts and individual cylinder heads can be constructed similarly or identically.

Der Zylinderkopf 26 weist einen Einlasskanal 28 und einen Kühlmittelraum (Kühlmantel) 30 auf. In der Figur 3 sind der Zylinderkopf 26, der Einlasskanal 28 und der Kühlmittelraum 30 nur abschnittsweise gezeigt. Der Einlasskanal 28 führt zu einer Verbrennungskammer eines Zylinders des Verbrennungsmotors. Der Luftverteilungskanal 14 mündet in den Einlasskanal 28.The cylinder head 26 has an inlet channel 28 and a coolant space (cooling jacket) 30. In the Figure 3 the cylinder head 26, the inlet duct 28 and the coolant chamber 30 are only shown in sections. The intake passage 28 leads to a combustion chamber of a cylinder of the internal combustion engine. The air distribution channel 14 opens into the inlet channel 28.

Während des Betriebs des Verbrennungsmotors erwärmt sich der Zylinderkopf 26. Zum Kühlen des Zylinderkopfes 26 und der darin angeordneten Komponenten zirkuliert ein Kühlmittel, zum Beispiel Wasser, in dem Kühlmittelraum 30.During operation of the internal combustion engine, the cylinder head 26 heats up. A coolant, for example water, circulates in the coolant space 30 to cool the cylinder head 26 and the components arranged therein.

Im Kühlmittelraum 30 können sich während des Motorbetriebs durch lokales Aufkochen des Kühlmittels Dampfblasen im Kühlmittel bilden. Diese Dampfblasen werden wie folgt abtransportiert. Ein Entlüftungskanal 32 verbindet einen oberen Abschnitt des Kühlmittelraums 30 mit dem Einzelentlüftungskanal 16. Der Entlüftungskanal 32 kann insbesondere zum Anstechen des Kühlmittelraums 30 gebohrt sein. Der entstehende Dampf wird aus dem Kühlmittelraum 30 durch den Entlüftungskanal 32 des Zylinderkopfes 26 und dem Einzelentlüftungskanal 16 des Einlassluftverteilerrohrs 10 zu dem Sammelentlüftungskanals 18 transportiert. Aus dem Sammelentlüftungskanals 18 wird der Dampf über den Entlüftungsauslasskanal 24 (siehe Figuren 1 und 2) abgeleitet.In the coolant space 30, steam bubbles can form in the coolant during engine operation as a result of the local boiling up of the coolant. These vapor bubbles are removed as follows. A ventilation channel 32 connects an upper section of the coolant space 30 to the individual ventilation channel 16. The ventilation channel 32 can in particular be drilled for piercing the coolant space 30. The resulting vapor is transported from the coolant chamber 30 through the ventilation duct 32 of the cylinder head 26 and the individual ventilation duct 16 of the intake air distribution pipe 10 to the collective ventilation duct 18. The steam is discharged from the collective ventilation channel 18 via the ventilation outlet channel 24 (see FIGS. 1 and 2).

Der Einzelentlüftungskanal 16 weist einen ersten Abschnitt 16A und einen zweiten Abschnitt 16B auf. Der erste Abschnitt 16A erstreckt sich zwischen dem Entlüftungskanal 32 des Zylinderkopfes 26 und dem zweiten Abschnitt 16B. Der zweite Abschnitt 16B erstreckt sich zwischen dem ersten Abschnitt 16A über den Sammelentlüftungskanal 18 zu einer Öffnung 16C. Die Öffnung 16C kann mit einem Deckel abgedichtet werden. Der erste Abschnitt 16A ist insbesondere ausgehend von einem dem zweiten Abschnitt 16B gegenüberliegendem Ende gebohrt. Der zweite Abschnitt 16B ist insbesondere ausgehend von der Öffnung 16C gebohrt. Der erste Abschnitt 16A und der zweite Abschnitt 16B erstrecken sich durch den Rohrkörper 12, treffen in einem stumpfen Winkel aufeinander und bilden zusammen den Einzelentlüf-tungskanal 16.The individual ventilation channel 16 has a first section 16A and a second section 16B. The first section 16A extends between the vent channel 32 of the cylinder head 26 and the second section 16B. The second section 16B extends between the first section 16A via the collective vent channel 18 to an opening 16C. The opening 16C can be sealed with a lid. The first section 16A is drilled, in particular, starting from an end opposite the second section 16B. The second section 16B is drilled in particular starting from the opening 16C. The first section 16A and the second section 16B extend through the tubular body 12, meet at an obtuse angle and together form the individual ventilation channel 16.

Auch wenn in Figur 3 nur ein einzelner Einzelentlüftungskanal 16 gezeigt ist, so können die übrigen Einzelentlüftungskanäle 16 (siehe Figuren 1 und 2) wie der unter Bezugnahme auf Figur 3 beschriebene Einzelentlüftungskanal ausgebildet sein.Even if in Figure 3 only a single individual ventilation duct 16 is shown, the remaining individual ventilation ducts 16 (see FIG Figures 1 and 2 ) like the one referring to Figure 3 be formed single ventilation duct described.

Der erste Abschnitt 16A erstreckt sich oberhalb eines Auslassbereichs des Luftverteilerkanals 14. Der Entlüftungskanal 32 erstreckt sich oberhalb des Einlasskanals 28.The first section 16A extends above an outlet region of the air distribution duct 14. The ventilation duct 32 extends above the inlet duct 28.

Durch die Integration der Einzelentlüftungskanäle 16 und des Sammelentlüftungskanals 18 in den Rohrkörpers 12 des Einlassluftverteilerrohrs 10 ist es nicht länger notwendig, separate Entlüftungsleitungen an die Einzelzylinderköpfe 26 zum Entlüften der Kühlräume anzuschließen. Mit anderen Worten gesagt, integriert das Einlassluftverteilerrohr 10 die Funktion der Luftverteilung auf die einzelnen Zylinder (Zylinderköpfe) und die Funktion der Entlüftung der Kühlräume der einzelnen Zylinderköpfe.As a result of the integration of the individual ventilation channels 16 and the collective ventilation channel 18 in the tubular body 12 of the inlet air distributor pipe 10, it is no longer necessary to connect separate ventilation lines to the individual cylinder heads 26 for venting the cooling spaces. In other words, the intake air manifold 10 integrates the function of the Air distribution to the individual cylinders (cylinder heads) and the function of venting the cooling chambers of the individual cylinder heads.

Die Erfindung ist nicht auf die vorstehend beschriebenen bevorzugten Ausführungsbeispiele beschränkt.The invention is not restricted to the preferred exemplary embodiments described above.

BezugszeichenlisteList of reference symbols

1010
Einlassluftverteilerrohr (Vorrichtung zur Luftführung)Inlet air manifold (device for guiding air)
1212th
RohrkörperTubular body
1414th
LuftverteilungskanalAir distribution duct
1616
EinzelentlüftungskanalSingle ventilation duct
16A16A
Erster Abschnitt des EinzelentlüftungskanalsFirst section of the single ventilation duct
16B16B
Zweiter Abschnitt des EinzelentlüftungskanalsSecond section of the single vent duct
16C16C
Öffnung des EinzelentlüftungskanalsOpening of the individual ventilation duct
1818th
SammelentlüftungskanalCollective ventilation duct
2020th
EintrittsöffnungInlet opening
2222nd
AustrittsöffnungOutlet opening
2424
EntlüftungsauslasskanalVent outlet duct
2626th
ZylinderkopfCylinder head
2828
(Luft-) Einlasskanal des Zylinderkopfes(Air) inlet duct of the cylinder head
3030th
Kühlmittelraum (Kühlmantel)Coolant space (cooling jacket)
3232
Entlüftungskanal des ZylinderkopfesVentilation duct of the cylinder head

Claims (14)

  1. A device for conducting air, in particular an inlet air distributor pipe (10), for an internal combustion engine with a plurality of cylinder heads (26), having:
    a pipe body (12) comprising:
    an air distribution channel (14) with a plurality of outlet openings (22) for connection to a plurality of inlet channels (28) of the plurality of cylinder heads (26);
    a plurality of single venting channels (16) for connection to a plurality of coolant chambers (30) of the plurality of cylinder heads (26) for venting the plurality of coolant chambers (30);
    a collective venting channel (18), the plurality of single venting channels (16) discharging therein; and
    a venting outlet channel (24) which is connected to the collective venting channel (18) and can be connected to a collection container, wherein steam from the coolant chambers (30) of the cylinder heads (30) can be conducted away into the collection container by means of the venting outlet channel (24) .
  2. The device for conducting air according to Claim 1, wherein the collective venting channel (18) extends in a longitudinal direction of the pipe body (12) and/or parallel to the air distribution channel (14) .
  3. The device for conducting air according to Claim 1 or Claim 2, wherein:
    the collective venting channel (18) is bored, in particular by a deep boring method; or
    the collective venting channel (18) is cast.
  4. The device for conducting air according to one of the preceding claims, wherein:
    the plurality of single venting channels (16) are bored; or
    the plurality of single venting channels (16) are cast.
  5. The device for conducting air according to one of the preceding claims, wherein the collective venting channel (18) and/or the plurality of single venting channels (16) in each case are bored on two sides.
  6. The device for conducting air according to one of the preceding claims, wherein the plurality of single venting channels (16) are provided in a cylinder-selective manner for each coolant chamber of the plurality of coolant chambers (30) of each cylinder head of the plurality of cylinder heads (26) .
  7. The device for conducting air according to one of the preceding claims, wherein:
    the venting outlet channel (24) is bored or cast as a tapping of the collective venting channel (18); and/or
    the venting outlet channel (24) extends in a radial direction relative to a longitudinal axis of the pipe body (12).
  8. The device for conducting air according to one of the preceding claims, wherein the collective venting channel (18) and/or the plurality of single venting channels (16) extend in a pipe wall of the pipe body (12) .
  9. The device for conducting air according to Claim 8, wherein:
    the plurality of single venting channels (16) in each case extend in a peripheral direction of the pipe body (12) in the pipe wall of the pipe body (12); and/or
    the collective venting channel (18) extends in a longitudinal direction of the pipe body (12) in the pipe wall of the pipe body (12).
  10. The device for conducting air according to one of the preceding claims, wherein the plurality of single venting channels (16) in each case comprise a first, in particular bored, portion (16A) and a second, in particular bored, portion (16B) which meet at an angle, in particular an obtuse angle.
  11. The device for conducting air according to Claim 10, wherein the first portion (16A) is arranged upstream of the second portion (16B) and the second portion (16B) discharges into the collective venting channel (18) .
  12. The device for conducting air according to one of the preceding claims, wherein the plurality of single venting channels (16) are arranged at a uniform distance from one another in a longitudinal direction of the pipe body (12).
  13. An arrangement for an internal combustion engine, having:
    a plurality of single cylinder-cylinder heads (26) for covering a plurality of cylinders of an internal combustion engine, wherein the single cylinder-cylinder heads (26) in each case have a coolant chamber (30), in particular a water core, for cooling the respective single cylinder-cylinder head (26); and
    a device for conducting air according to one of the preceding claims, wherein the plurality of single venting channels (16) are connected in each case to one of the plurality of coolant chambers (30) .
  14. A motor vehicle, in particular a utility vehicle, having a device for conducting air according to one of Claims 1 to 12 or an arrangement according to Claim 13.
EP18173768.5A 2017-06-12 2018-05-23 Device for introduction of air with cooling chamber venting for a combustion engine Active EP3415750B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017112858.1A DE102017112858A1 (en) 2017-06-12 2017-06-12 Device for air guidance with cooling chamber ventilation for an internal combustion engine

Publications (2)

Publication Number Publication Date
EP3415750A1 EP3415750A1 (en) 2018-12-19
EP3415750B1 true EP3415750B1 (en) 2021-09-01

Family

ID=62235868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18173768.5A Active EP3415750B1 (en) 2017-06-12 2018-05-23 Device for introduction of air with cooling chamber venting for a combustion engine

Country Status (5)

Country Link
US (1) US10774727B2 (en)
EP (1) EP3415750B1 (en)
CN (1) CN109026341B (en)
DE (1) DE102017112858A1 (en)
RU (1) RU2767431C2 (en)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937146A1 (en) * 1969-07-22 1971-02-04 Daimler Benz Ag Kuehlwasserfuehrung in reciprocating internal combustion engines
JPS55108215U (en) * 1979-01-23 1980-07-29
JPS6017255A (en) * 1983-07-11 1985-01-29 Nissan Motor Co Ltd Cylinder head of boiling-cooling system engine
GB2165886A (en) * 1984-10-23 1986-04-23 Ford Motor Co An inlet manifold for an i c engine
US5031579A (en) * 1990-01-12 1991-07-16 Evans John W Cooling system for internal combustion engines
JPH08200063A (en) * 1995-01-31 1996-08-06 Daihatsu Motor Co Ltd Intake manifold
US6230669B1 (en) * 1996-11-13 2001-05-15 Evans Cooling Systems, Inc. Hermetically-sealed engine cooling system and related method of cooling
DE19920195B4 (en) * 1999-05-03 2007-12-06 Audi Ag Air intake system for a multi-cylinder internal combustion engine
RU2181847C1 (en) * 2000-08-24 2002-04-27 Государственный научно-исследовательский тракторный институт НАТИ Vehicle engine-transmission unit cooling device
DE10226688B4 (en) 2002-06-15 2004-12-09 Daimlerchrysler Ag Cylinder head of a reciprocating internal combustion engine
US6810838B1 (en) * 2003-06-12 2004-11-02 Karl Harry Hellman Individual cylinder coolant control system and method
DE10340157B4 (en) * 2003-09-01 2008-10-02 Audi Ag Device for media guidance in a cylinder crankcase
US6840221B1 (en) * 2003-12-23 2005-01-11 International Engine Intellectual Property Company, Llc Runnerless engine intake manifold having integral fuel delivery groove or bore
JP4814920B2 (en) * 2008-08-20 2011-11-16 本田技研工業株式会社 Exhaust structure of internal combustion engine
EP2161438B1 (en) * 2008-09-03 2015-01-21 Behr GmbH & Co. KG System and method for recirculating exhaust gas from a combustion engine
DE102010013927B4 (en) * 2010-04-06 2019-03-21 Schaeffler Technologies AG & Co. KG Internal combustion engine with two fluid-tightly separated lubrication chambers
DE102010023812A1 (en) * 2010-06-15 2011-12-15 Audi Ag V-type multi-cylinder combustion engine, has ventilation main sewer for connecting geodetically high locations of water jacket and/or cooling water circuit of crankcase with vent at outer side of cylinder head or crankcase of housing
JP5711716B2 (en) * 2012-10-19 2015-05-07 本田技研工業株式会社 Cylinder head water jacket structure

Also Published As

Publication number Publication date
RU2018121115A (en) 2019-12-09
CN109026341A (en) 2018-12-18
RU2767431C2 (en) 2022-03-17
EP3415750A1 (en) 2018-12-19
BR102018011894A2 (en) 2019-05-07
DE102017112858A1 (en) 2018-12-13
US20180355785A1 (en) 2018-12-13
BR102018011894A8 (en) 2023-01-17
RU2018121115A3 (en) 2021-09-29
CN109026341B (en) 2022-01-11
US10774727B2 (en) 2020-09-15

Similar Documents

Publication Publication Date Title
DE102008057338A1 (en) Internal cooling of a cylinder head of a turbocharged internal combustion engine
DE102007062347B4 (en) Cooling arrangement for a cylinder head of an internal combustion engine
DE102008035957A1 (en) Cylinder head for internal combustion engine i.e. turbocharged internal combustion engine of vehicle, has oil return line integrated in head, aligned in direction of longitudinal axes, and arranged on side of manifold facing cylinders
DE102016109770A1 (en) Water-cooled exhaust manifold
EP3415750B1 (en) Device for introduction of air with cooling chamber venting for a combustion engine
EP2143898A1 (en) Arrangement with cylinder head and cylinder block
EP3183443A1 (en) Internal combustion engine
EP3847355B1 (en) Cylinder head for an internal combustion engine and method for the production thereof
EP2077386B1 (en) Cylinder head with exhgaust manifold integrated in cylinder head
EP1103704B1 (en) Liquid cooled internal combustion engine with cylinder banks arranged in V form
DE102011014704A1 (en) Exhaust device, particularly for exhaust gas recirculation system of internal combustion engine, has exhaust gas recirculation cooler which has heat exchanger with exhaust duct for guiding exhaust gas stream
DE102008048897A1 (en) Air-gap insulated exhaust manifold for exhaust-gas system of internal combustion engine of motor vehicle, has exhaust pipes for guiding hot gas, and outer sleeve composed of sheet metal material
DE102015202491B4 (en) Coolant jacket for a cylinder head of an internal combustion engine
DE102007012907A1 (en) Cylinder head for a liquid-cooled internal combustion engine
AT501229B1 (en) Exhaust system for internal combustion engine has first and second exhaust pipes, in whose opening area, uniting first and second exhaust pipes span angle at reference points of inner wall of exhaust pipes
DE102016216360B4 (en) Cylinder head for an internal combustion engine
DE102020133308B3 (en) Cooling channel arrangement for cooling a cylinder housing of an internal combustion engine
DE102013016358A1 (en) Reciprocating piston-internal combustion engine for a motor vehicle, has cylinder housing with cylinder, and screw pipe for partially receiving cylinder head screw for fastening cylinder head to cylinder housing
DE102004013763A1 (en) Automotive piston engine has crankcase air bleed pipe via oil trap to carburettor inlet
DE102015222859A1 (en) Cylinder head of an internal combustion engine with integrated exhaust manifold and cooling jacket
DE102020128705B3 (en) Cooling channel arrangement for cooling a cylinder housing of an internal combustion engine
DE102020111176A1 (en) Internal combustion engine with a cooling device for cooling cylinders and a motor vehicle with an internal combustion engine
DE102017220231B3 (en) Internal combustion engine
DE102013017623A1 (en) Cylinder housing for a reciprocating internal combustion engine
DE102013003607A1 (en) Internal combustion engine for motor vehicle, has primary vent channels which are arranged in longitudinal direction of crankcase, and secondary vent channels for venting second coolant chamber is fluidly connected at cylinder

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL 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 RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAN TRUCK & BUS SE

17P Request for examination filed

Effective date: 20190617

RBV Designated contracting states (corrected)

Designated state(s): AL 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 RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200116

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RIC1 Information provided on ipc code assigned before grant

Ipc: F02B 75/18 20060101ALN20210330BHEP

Ipc: F01P 11/02 20060101ALI20210330BHEP

Ipc: F02M 35/10 20060101AFI20210330BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210517

RIC1 Information provided on ipc code assigned before grant

Ipc: F02B 75/18 20060101ALN20210503BHEP

Ipc: F01P 11/02 20060101ALI20210503BHEP

Ipc: F02M 35/10 20060101AFI20210503BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL 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 RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1426491

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210915

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018006789

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211201

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211201

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220101

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220103

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018006789

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

26N No opposition filed

Effective date: 20220602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220523

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220523

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20180523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240527

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240529

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1426491

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230523

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240527

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20240527

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240524

Year of fee payment: 7