EP2881576A1 - Recirculated exhaust gas distribution device and corresponding intake manifold and intake module - Google Patents
Recirculated exhaust gas distribution device and corresponding intake manifold and intake module Download PDFInfo
- Publication number
- EP2881576A1 EP2881576A1 EP14195476.8A EP14195476A EP2881576A1 EP 2881576 A1 EP2881576 A1 EP 2881576A1 EP 14195476 A EP14195476 A EP 14195476A EP 2881576 A1 EP2881576 A1 EP 2881576A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- recirculated exhaust
- flow
- air
- control member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 124
- 238000002347 injection Methods 0.000 claims abstract description 97
- 239000007924 injection Substances 0.000 claims abstract description 97
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/27—Layout, e.g. schematics with air-cooled heat exchangers
-
- 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
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
- F02M35/10268—Heating, cooling or thermal insulating means
Definitions
- the present invention relates to the general field of air supply of motor vehicle engines, and more particularly to engines whose supply air comes from a compressor or a turbocharger.
- the invention more particularly relates to multicylinder engines and devices used to distribute recirculated exhaust gas streams to the cylinders.
- the motors concerned by the invention can be spark ignition or compression ignition (diesel engine).
- the engines can be supercharged or powered at atmospheric pressure.
- a motor vehicle engine has a combustion chamber, generally formed by a plurality of cylinders, in which a mixture of oxidant and fuel is burned to generate the engine work.
- the gases admitted into the combustion chamber are called intake gases. They include air that is called supercharging air when it comes from a compressor.
- RAS charge air cooler
- exhaust gases In order to reduce the polluting emissions, it is known to introduce into the flow of intake gas, so-called “recirculated” exhaust gases, known to those skilled in the art under the abbreviation “EGR” corresponding to “Exhaust Gas recirculation. This is exhaust gas taken downstream of the combustion chamber to be re-routed (recirculated) to the intake gas stream, upstream of the combustion chamber, where they are mixed with the charge air for admission to the combustion chamber.
- EGR exhaust Gas corresponding to "Exhaust Gas recirculation.
- an intake manifold intended to be mounted on the cylinder head of the engine allows the possible mixing of the fresh air flow and the flow of recirculated exhaust gas, and the distribution of the mixture in the cylinder head.
- recirculated exhaust gas conveying means are provided in the intake manifold for the distributed injection of the recirculated exhaust gas into the supercharging air stream.
- the recirculated exhaust gas is introduced into the intake manifold via a distribution channel arranged transversely to the flow of the charge air, opening for example through downstream of the charge air cooler and having a few injection holes which allow the recirculated exhaust gas to flow into the volume of the intake manifold.
- the recirculated exhaust gas can mix with the intake gases from, for example, the charge air cooler. The mixture is then directed to outlet channels to feed the cylinder (s) of the engine.
- the size and position of the injection holes are fixed. Indeed, the size and the arrangement of the holes are predefined for a certain operating range of the engine and can not be modified during engine operation.
- injection holes having a certain diameter make it possible to obtain an exhaust gas rate in the cylinders that satisfies for an engine speed around 1250 rpm.
- the rate of exhaust gas recirculated in the cylinders is not satisfactory for an engine speed around 2000rpm. The opposite is also valid.
- the subject of the invention is a recirculated exhaust gas distribution device of an intake manifold for an intake module of air configured to supply at least one cylinder of an internal combustion engine, an air stream comprising intake gases and / or recirculated exhaust gas, the distribution device comprising a gas distribution channel recirculated exhaust, the distribution channel comprising a first exhaust gas injection means recirculated in the air flow for supplying at least one cylinder, characterized in that the dispensing device further comprises a control member arranged in the distribution channel and configured to modulate the flow of recirculated exhaust gas injected by the first injection means.
- Such a distribution device optimizes the distribution of recirculated exhaust gas for several operating points of the engine, for example for a range of engine speed of the order of 1250 to 2500 rpm.
- control member allows an active modulation of the recirculated exhaust gas flow injected into the supercharging air flow, by modifying the passage section of the recirculated exhaust gas flow injected by the first d injection into the supercharging air flow in particular depending on the engine conditions.
- control member is rotatable and is configured to modulate the flow of recirculated exhaust gas as a function of the angular position of the rotary control member. It may be for example a rotary plug, or a rotary flap, such as a butterfly-type flap.
- control member is movable in translation. It may be for example a mobile flap in translation of the guillotine type.
- the first injection means comprises at least one first injection hole and the control member is shaped so as to adjust the dimensions of the first injection hole.
- the control member makes it possible to vary the size or size of the first injection holes as a function of the engine speed, and consequently allows a precise exhaust gas distribution according to different engine conditions.
- the invention also relates to an intake manifold for an air intake module configured for supplying at least one cylinder of an internal combustion engine, by an air stream comprising intake gases and / or combustion gases.
- recirculated exhaust characterized in that it comprises at least one recirculated exhaust gas distribution device as defined above.
- the invention also relates to an air intake module, such as supercharging air, configured to supply at least one cylinder of an internal combustion engine, by an air flow comprising intake gases and / or or recirculated exhaust gas (EGR), characterized in that it comprises at least one recirculated exhaust gas distribution device as defined above.
- an air intake module such as supercharging air
- EGR recirculated exhaust gas
- the air intake module comprises a heat exchanger configured to condition the flow of air, and an intake manifold configured to supply at least one cylinder of the engine arranged downstream of the heat exchanger. according to the flow direction of the air flow in the intake module.
- the recirculated exhaust gas distribution device is arranged downstream of the heat exchanger, on a portion upstream of the intake manifold, with respect to the direction of flow of the air flow in the intake module.
- an intake module 1 intended to be placed on the cylinder head of a multicylinder engine (not shown in the figures) and which comprises for each cylinder of the engine at least one duct intended to extend in the cylinder head to supply the cylinder with gas intake.
- the intake module 1 comprises an intake manifold 3, also called distribution manifold, in which opens (s) the (s) supply duct (s) of the engine cylinders.
- the intake manifold 3 is configured to distribute the flow of intake gas between the ducts respectively associated with a cylinder of the engine according to the illustrated example.
- the intake module 1 further comprises an inlet manifold 5 for supplying the intake manifold 3 with inlet gas.
- the intake module 1 may comprise a heat exchanger 7 through which the inlet gas from the inlet manifold 5 passes before being distributed in the supply ducts of the different cylinders.
- the heat exchanger 7 is configured to cool the charge air.
- Such a heat exchanger 7 is generally called a charge air cooler, known by the abbreviation "RAS”.
- RAS charge air cooler
- Such a heat exchanger 7 may comprise a bundle of tubes or plates (not shown) delimiting fluid flow channels, such as the coolant, and has at least one inlet and outlet manifold 9 for the coolant.
- the terms “upstream” and “downstream” are defined with respect to the direction of circulation of the charge air in the intake module 1.
- the charge air is introduced into the heat exchanger 7 through the inlet manifold 5, mounted upstream of the heat exchanger 7, and discharged through the intake manifold 3, also called distribution manifold, mounted in downstream of the heat exchanger 7 and intended to be connected to the cylinder head of the engine (not shown).
- the intake manifold 3 allows a distributed admission into the engine cylinders of the intake gases and / or recirculated exhaust gases.
- the intake manifold 3 is for example metal and can be mounted on the cylinder head of the engine (not shown).
- the intake manifold 3 comprises at least one outlet channel 10 forming a passage section for the charge air.
- air fresh air fresh air possibly mixed exhaust gas recovered at the engine output.
- the intake manifold 3, mounted downstream of the heat exchanger 7, comprises an open upstream portion on which opens the exit face of the beam of the heat exchanger 7, and a downstream portion intended to be fixed on the cylinder head of the engine.
- the downstream portion of the intake manifold 3 here comprises the outlet channel (s) 10 arranged to open respectively into the intake cylinders of the engine.
- the intake manifold 3 further comprises a distribution device 11 of the recirculated exhaust gas.
- the dispensing device 11 is at the level of the upstream portion of the intake manifold 3.
- the dispensing device 11 allows injection of the recirculated exhaust gas into the supercharging air stream.
- the distribution device 11 comprises an exhaust gas distribution channel 13 and a first exhaust gas injection means 15, such as at least one first injection hole 15, for putting into fluid communication the distribution channel 13 and the outlet channel (s) 10 for feeding the cylinders.
- the distribution channel 13 is arranged on the upstream portion of the intake manifold 3.
- the distribution channel 13 extends in the example illustrated on the figures 2 and 3 facing the outlet of the heat exchanger 7, substantially transversely to the direction of flow of the charge air.
- the distribution channel 13 extends here over the entire width of the intake manifold 3.
- It may be a distribution channel 13 of substantially cylindrical shape.
- the first or the first injection holes 15 are, for example, made on a wall of the distribution channel 13 downstream with respect to the direction of circulation of the charge air.
- the distribution channel 13 comprises a series of first injection holes 15, here four first injection holes 15.
- the first injection holes 15 are, for example, substantially circular. They could also be oval or any other suitable forms.
- the intake manifold 3 may have a number of different first injection holes 15.
- another shape or dimensions of the first different injection holes 15 may be provided.
- the dispensing device 11 further comprises a control member 17 configured to modulate the recirculated exhaust gas stream which is injected by the first injection means 15.
- control member 17 is here shaped so as to vary the dimensions of the first injection holes 15.
- control 17 is shaped to adjust the diameter of the first injection holes 15.
- the dimensions, in particular the diameter, of the first injection holes 15 are related to the engine speed.
- the control member makes it possible to adjust the dimensions of the first injection holes 15 as a function of the engine speed.
- the control member 17 may be driven by an actuator 18 which may be electrical or alternatively pneumatic.
- an electric actuator 18 it is possible to provide a continuous fine adjustment of the position, for example angular, of the control member 17 with a very small amplitude of movement.
- a pneumatic actuator 18 it is possible, for example, to provide a predefined number of angular positions of the control member 17.
- control member 17 may be driven by the motor shaft.
- control member 17 is movable in translation.
- a movable control flap in translation such as a guillotine type flap.
- control member 17 is made in the form of a substantially cylindrical rotary tube called plug.
- a rotary control member such as a rotary flap, for example a butterfly-type flap.
- the plug 17 is configured to rotate about its longitudinal axis.
- the plug 17 is adapted to be arranged so that its longitudinal axis is arranged substantially transversely to the direction of flow of the charge air.
- the plug 17 is arranged in the distribution channel 13 so as to extend facing the outlet of the heat exchanger 7, substantially transversely to the direction of flow of the charge air.
- the plug 17 may extend over the entire length of the distribution channel 13 and thus here over the entire width of the intake manifold 3.
- the plug 17 here comprises a port 19 for entering the exhaust gas recirculated into the plug 17.
- the introduction of the exhaust gas into the plug 17 is shown schematically by the arrow EGR on the figure 2 .
- the plug 17 is shaped so as to allow or block the circulation of the recirculated exhaust gas, but also to modulate the flow of exhaust gas, in particular by adjusting the passage section of the first injection holes 15, depending on the angular position of the bushel 17.
- the plug 17 comprises a second injection means 21, such as at least one second injection hole 21.
- the second injection means 21 is shaped so as to make it possible to vary / adjust the flow section of the flow of exhaust gas recirculated by the first injection means 15.
- the plug 17 comprises a series of second injection holes 21, more precisely of the same number as the first injection holes 15, here four.
- the plug 17 has on the same side the series of second injection holes 21, four holes according to the illustrated example.
- the second injection holes 21 allow, when they are at least partially vis-à-vis the first injection holes 15, the injection of the exhaust gas into the supercharging air stream.
- the plug 17 is adapted to be arranged in a position allowing fluid communication between a first injection hole 15 and a second injection hole 21 associated.
- each second injection hole 21 is arranged on the plug 17 so as to be aligned with a first associated injection hole 15 as a function of the position of the plug 17, as illustrated in FIG. figures 2 and 3 , that is to say, so that the first and second holes 15, 21 associated injection are vis-à-vis allowing the passage of an exhaust gas flow.
- the passage is maximum for the recirculated exhaust gas stream.
- the second injection holes 21 have a substantially circular shape.
- second injection holes 21 may vary. It is also possible to provide a shape or dimensions of the second different injection holes. It is also possible to provide a different distribution of the second injection holes 21 on the plug 17. In particular, the second injection holes 21 may not be aligned with respect to each other.
- the injection of the exhaust gas is distributed thanks to the distribution of the first injection holes 15 along the distribution channel 13 and the distribution of the second injection holes 21 along the plug 17.
- the intake gases admitted by the upstream face of the intake manifold 3 mix with the gases recirculated exhaust pipe admitted by the dispensing device 11.
- the charge air comprising fresh air possibly mixed with recirculated exhaust gas is then distributed in the outlet channels 10 in order to supply the engine cylinders with gas for combustion.
- the dispensing device 11 may furthermore comprise at least one sealing means 23 arranged in such a way as to prevent a flow of recirculated exhaust gas injected via a second injection hole 21 from circulating again to another second injection hole 21 of the plug 17 instead of circulating in the volume of the intake manifold 3 to be directed to the outlet channels 10.
- this predefined position may be such that the second injection holes 21 of the plug 17 coincide with the first injection holes 15 of the distribution channel 13 or, on the contrary, such that the second injection holes 21 of the plug 17 are not aligned with the first injection holes 15 of the distribution channel 13.
- the distribution device 11 allows an active distribution of the recirculated exhaust gas, in other words allows active adaptation of the exhaust gas streams recirculated by the first injection means 15, according to the flow rate of the recirculated exhaust gas. arriving at the gas inlet 9.
- the passage section of the recirculated exhaust gas flow can be adjusted according to the speed or flow rate of the recirculated exhaust gas.
- the passage section for the gas defined by the first injection hole 15 closest to the gas inlet orifice 19 may be decreased so as to force the exhaust gas towards the other first injection holes 15 farther from the gas inlet port 19.
- the first injection hole 15 in the case of low flow of the recirculated exhaust gas, the first injection hole 15 must have a smaller diameter relative to the other first injection holes 15. To do this, in the case of a rotary plug 17, the plug 17 is rotated to a corresponding angular position.
- the first injection hole 15 closest to the gas inlet port 19 may be bypassed, the exhaust gas flowing towards the injection holes 15 farther from the gas inlet port 19.
- the passage section for the gas defined by the first injection hole 15 closest to the gas inlet port 19 can be increased so as to force the passage of the exhaust gas through this first injection hole 15 closest to the gas inlet port 19.
- the first injection hole 15 must have a larger diameter relative to the other first injection holes 15. To do this, in the case of a rotary plug 17, the plug 17 is rotated to a corresponding angular position .
- a computer in the vehicle can for example detect the flow rate of the recirculated exhaust gas and send a corresponding instruction to the actuator 18 to drive the control member 17 in the appropriate position to vary the diameter of the first injection holes 15.
- the distribution device 11 can be connected directly to an exhaust gas routing pipe 25 recovered at the motor output.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
L'invention concerne un dispositif de distribution (11) de gaz d'échappement recirculés d'un collecteur d'admission (3) pour un module d'admission d'air, configuré pour alimenter au moins un cylindre de moteur à combustion interne, par un flux d'air comprenant des gaz d'admission et/ou des gaz d'échappement recirculés (EGR), le dispositif de distribution (11) comportant un canal de distribution (13) de gaz d'échappement recirculés, le canal de distribution (13) comprenant un premier moyen d'injection (15) de gaz d'échappement recirculés dans le flux d'air pour alimenter au moins un cylindre.The invention relates to a device (11) for distributing recirculated exhaust gas from an intake manifold (3) for an air intake module, configured to supply at least one cylinder of an internal combustion engine, a flow of air comprising intake gases and / or recirculated exhaust gas (EGR), the distribution device (11) comprising a recirculated exhaust gas distribution channel (13), the distribution (13) comprising a first injection means (15) of recirculated exhaust gas in the air stream for supplying at least one cylinder.
Selon l'invention, le dispositif de distribution (11) comporte en outre un organe de contrôle (17) agencé dans le canal de distribution (13) et configuré pour moduler le flux de gaz d'échappement recirculés injecté par le premier moyen d'injection (15). According to the invention, the dispensing device (11) further comprises a control member (17) arranged in the distribution channel (13) and configured to modulate the flow of recirculated exhaust gas injected by the first means of injection (15).
Description
La présente invention concerne le domaine général de l'alimentation en air des moteurs de véhicules automobiles, et plus particulièrement des moteurs dont l'air d'alimentation provient d'un compresseur ou d'un turbocompresseur. L'invention vise plus particulièrement les moteurs multicylindres et les dispositifs utilisés pour distribuer les flux de gaz d'échappement recirculés vers les cylindres.The present invention relates to the general field of air supply of motor vehicle engines, and more particularly to engines whose supply air comes from a compressor or a turbocharger. The invention more particularly relates to multicylinder engines and devices used to distribute recirculated exhaust gas streams to the cylinders.
Les moteurs concernés par l'invention peuvent être à allumage commandé ou à allumage par compression (moteur Diesel). Les moteurs peuvent être suralimentés ou alimentés à la pression atmosphérique.The motors concerned by the invention can be spark ignition or compression ignition (diesel engine). The engines can be supercharged or powered at atmospheric pressure.
Un moteur thermique de véhicule automobile comporte une chambre de combustion, généralement formée par une pluralité de cylindres, dans laquelle un mélange de comburant et de carburant est brûlé pour générer le travail du moteur. Les gaz admis dans la chambre de combustion sont dénommés gaz d'admission. Ils comportent de l'air que l'on nomme air de suralimentation lorsqu'il provient d'un compresseur.A motor vehicle engine has a combustion chamber, generally formed by a plurality of cylinders, in which a mixture of oxidant and fuel is burned to generate the engine work. The gases admitted into the combustion chamber are called intake gases. They include air that is called supercharging air when it comes from a compressor.
Afin d'augmenter la densité de l'air de suralimentation, ces gaz sont généralement refroidis avant d'être introduits dans la chambre de combustion. Cette fonction est remplie par un échangeur thermique, également appelé refroidisseur d'air de suralimentation connu sous l'abréviation « RAS ».In order to increase the density of the charge air, these gases are generally cooled before being introduced into the combustion chamber. This function is fulfilled by a heat exchanger, also called charge air cooler known under the abbreviation "RAS".
Afin de réduire les émissions polluantes, il est connu d'introduire dans le flux de gaz d'admission, des gaz d'échappement dit « recirculés », connus de l'homme du métier sous le sigle anglais « EGR » correspondant à « Exhaust Gas recirculation ». Il s'agit de gaz d'échappement prélevés en aval de la chambre de combustion pour être réacheminés (recirculés) vers le flux de gaz d'admission, en amont de la chambre de combustion, où ils sont mélangés à l'air de suralimentation en vue de leur admission dans la chambre de combustion.In order to reduce the polluting emissions, it is known to introduce into the flow of intake gas, so-called "recirculated" exhaust gases, known to those skilled in the art under the abbreviation "EGR" corresponding to "Exhaust Gas recirculation. This is exhaust gas taken downstream of the combustion chamber to be re-routed (recirculated) to the intake gas stream, upstream of the combustion chamber, where they are mixed with the charge air for admission to the combustion chamber.
En vue de l'admission dans la culasse d'un moteur thermique de véhicule automobile d'un flux d'air de suralimentation comprenant un flux de gaz d'admission c'est-à-dire d'air frais et/ou un flux de gaz d'échappement recirculés, un collecteur d'admission destiné à être monté sur la culasse du moteur permet l'éventuel mélange du flux d'air frais et du flux de gaz d'échappement recirculés, et la répartition du mélange dans la culasse.With a view to the admission into the cylinder head of a motor vehicle engine of a supercharging air flow comprising a flow of intake gas that is fresh air and / or a flow of recirculated exhaust gas, an intake manifold intended to be mounted on the cylinder head of the engine allows the possible mixing of the fresh air flow and the flow of recirculated exhaust gas, and the distribution of the mixture in the cylinder head.
Dans ce cas, on prévoit des moyens d'acheminement de gaz d'échappement recirculés dans le collecteur d'admission permettant l'injection répartie des gaz d'échappement recirculés dans le flux d'air de suralimentation.In this case, recirculated exhaust gas conveying means are provided in the intake manifold for the distributed injection of the recirculated exhaust gas into the supercharging air stream.
Selon une solution connue, les gaz d'échappement recirculés dits gaz EGR sont introduits dans le collecteur d'admission par l'intermédiaire d'un canal de distribution agencé de façon transversale à l'écoulement de l'air de suralimentation débouchant par exemple en aval du refroidisseur d'air de suralimentation et présentant quelques trous d'injection qui permettent au gaz d'échappement recirculés de s'écouler dans le volume du collecteur d'admission.According to a known solution, the recirculated exhaust gas, called EGR gas, is introduced into the intake manifold via a distribution channel arranged transversely to the flow of the charge air, opening for example through downstream of the charge air cooler and having a few injection holes which allow the recirculated exhaust gas to flow into the volume of the intake manifold.
Les gaz d'échappement recirculés peuvent se mélanger avec les gaz d'admission provenant par exemple du refroidisseur d'air de suralimentation. Le mélange est alors dirigé vers des canaux de sortie pour alimenter le(s) cylindre(s) du moteur.The recirculated exhaust gas can mix with the intake gases from, for example, the charge air cooler. The mixture is then directed to outlet channels to feed the cylinder (s) of the engine.
Cependant, la taille et la position des trous d'injection sont fixes. En effet, la taille et la disposition des trous sont prédéfinis pour une certaine plage de fonctionnement du moteur et ne peut être modifié pendant le fonctionnement du moteur.However, the size and position of the injection holes are fixed. Indeed, the size and the arrangement of the holes are predefined for a certain operating range of the engine and can not be modified during engine operation.
À titre d'exemple, des trous d'injection présentant un certain diamètre permettent d'obtenir un taux de gaz d'échappement dans les cylindres satisfaisant pour un régime moteur autour de 1250tr/min. Toutefois, avec ce même diamètre le taux de gaz d'échappement recirculés dans les cylindres n'est pas satisfaisant pour un régime moteur autour de 2000tr/min. L'inverse est également valable.By way of example, injection holes having a certain diameter make it possible to obtain an exhaust gas rate in the cylinders that satisfies for an engine speed around 1250 rpm. However, with this same diameter the rate of exhaust gas recirculated in the cylinders is not satisfactory for an engine speed around 2000rpm. The opposite is also valid.
En conclusion, il est nécessaire de choisir une taille qui correspond bien pour une plage de régime, mais pas pour les autres. Cela conduit à une répartition optimale limitée à une étroite plage de fonctionnement du moteur.In conclusion, it is necessary to choose a size that fits well for a range of regime, but not for others. This leads to an optimal distribution limited to a narrow operating range of the engine.
À cet effet, l'invention a pour objet un dispositif de distribution de gaz d'échappement recirculés d'un collecteur d'admission pour un module d'admission d'air configuré pour alimenter au moins un cylindre de moteur à combustion interne, par un flux d'air comprenant des gaz d'admission et/ou des gaz d'échappement recirculés, le dispositif de distribution comportant un canal de distribution de gaz d'échappement recirculés, le canal de distribution comprenant un premier moyen d'injection de gaz d'échappement recirculés dans le flux d'air pour alimenter au moins un cylindre,
caractérisé en ce que le dispositif de distribution comporte en outre un organe de contrôle agencé dans le canal de distribution et configuré pour moduler le flux de gaz d'échappement recirculés injecté par le premier moyen d'injection.For this purpose, the subject of the invention is a recirculated exhaust gas distribution device of an intake manifold for an intake module of air configured to supply at least one cylinder of an internal combustion engine, an air stream comprising intake gases and / or recirculated exhaust gas, the distribution device comprising a gas distribution channel recirculated exhaust, the distribution channel comprising a first exhaust gas injection means recirculated in the air flow for supplying at least one cylinder,
characterized in that the dispensing device further comprises a control member arranged in the distribution channel and configured to modulate the flow of recirculated exhaust gas injected by the first injection means.
Un tel dispositif de distribution permet d'optimiser la distribution de gaz d'échappement recirculés pour plusieurs points de fonctionnement du moteur, par exemple pour une plage de régime moteur de l'ordre de 1250 à 2500 tr/min.Such a distribution device optimizes the distribution of recirculated exhaust gas for several operating points of the engine, for example for a range of engine speed of the order of 1250 to 2500 rpm.
En effet, l'organe de contrôle permet une modulation active du flux de gaz d'échappement recirculés injecté dans le flux d'air de suralimentation, en modifiant la section de passage du flux de gaz d'échappement recirculés injectés par le premier moyen d'injection dans le flux d'air de suralimentation notamment en fonction des conditions du moteur.Indeed, the control member allows an active modulation of the recirculated exhaust gas flow injected into the supercharging air flow, by modifying the passage section of the recirculated exhaust gas flow injected by the first d injection into the supercharging air flow in particular depending on the engine conditions.
Selon un mode de réalisation, l'organe de contrôle est rotatif et est configuré pour moduler le flux de gaz d'échappement recirculés en fonction de la position angulaire de l'organe de contrôle rotatif. Il peut s'agir par exemple d'un boisseau rotatif, ou d'un volet rotatif, tel qu'un volet de type papillon.According to one embodiment, the control member is rotatable and is configured to modulate the flow of recirculated exhaust gas as a function of the angular position of the rotary control member. It may be for example a rotary plug, or a rotary flap, such as a butterfly-type flap.
Selon une variante de réalisation, l'organe de contrôle est mobile en translation. Il peut s'agir par exemple d'un volet mobile en translation de type guillotine.According to an alternative embodiment, the control member is movable in translation. It may be for example a mobile flap in translation of the guillotine type.
Selon un aspect de l'invention, le premier moyen d'injection comporte au moins un premier trou d'injection et l'organe de contrôle est conformé de manière à ajuster les dimensions du premier trou d'injection.According to one aspect of the invention, the first injection means comprises at least one first injection hole and the control member is shaped so as to adjust the dimensions of the first injection hole.
L'organe de contrôle permet de faire varier la taille ou dimension des premiers trous d'injection en fonction du régime moteur, et par conséquent permet une distribution de gaz d'échappement précise selon différentes conditions du moteur.The control member makes it possible to vary the size or size of the first injection holes as a function of the engine speed, and consequently allows a precise exhaust gas distribution according to different engine conditions.
Avec un tel organe de contrôle il est également possible d'obturer complètement les premiers trous d'injection, et donc d'éviter tout écoulement de gaz d'échappement recirculés dans le trajet de l'air frais.With such a control member it is also possible to completely close the first injection holes, and thus to avoid any flow of recirculated exhaust gas in the path of fresh air.
Il est alors possible d'éliminer la vanne de distribution de gaz d'échappement prévue dans les solutions de l'art antérieur permettant le dosage de gaz d'échappement introduit dans le canal de distribution. Il n'est donc plus nécessaire de prévoir au niveau du collecteur d'admission une interface de connexion du canal de distribution à une telle vanne. Il en résulte une réduction des coûts.It is then possible to eliminate the exhaust gas distribution valve provided in the solutions of the prior art for the metering of exhaust gas introduced into the distribution channel. It is therefore no longer necessary to provide at the intake manifold a connection interface of the distribution channel to such a valve. This results in a reduction of costs.
Ledit dispositif de distribution peut en outre comporter une ou plusieurs caractéristiques suivantes, prises séparément ou en combinaison :
- l'organe de contrôle comporte un deuxième moyen d'injection de gaz d'échappement recirculés comprenant au moins un deuxième trou d'injection, et l'organe de contrôle est apte à être agencé dans une position permettant la mise en communication fluidique entre un premier trou d'injection et un deuxième trou d'injection associés, l'organe de contrôle étant par exemple un boisseau rotatif,
- le nombre de deuxièmes trous d'injection de l'organe de contrôle est le même que le nombre de premiers trous d'injection,
- le canal de distribution est apte à être agencé sensiblement transversalement par rapport à l'écoulement du flux d'air dans le module d'admission,
- l'organe de contrôle est apte à être agencé sensiblement transversalement par rapport à l'écoulement du flux d'air dans le module d'admission,
- l'organe de contrôle est réalisé sous forme d'un tube sensiblement cylindrique, tel qu'un boisseau,
- ledit dispositif comprend au moins un moyen de rappel agencé de manière à solliciter l'organe de contrôle vers une position prédéfinie de sécurité. Il peut s'agir par exemple d'un ressort de rappel.
- the control member comprises a second recirculated exhaust gas injection means comprising at least one second injection hole, and the control member is adapted to be arranged in a position allowing the fluidic communication to be put into place between a first injection hole and a second injection hole associated, the control member being for example a rotary plug,
- the number of second injection holes of the control member is the same as the number of first injection holes,
- the distribution channel is adapted to be arranged substantially transversely with respect to the flow of the air flow in the intake module,
- the control member is adapted to be arranged substantially transversely with respect to the flow of the air flow in the intake module,
- the control member is in the form of a substantially cylindrical tube, such as a bushel,
- said device comprises at least one return means arranged to bias the control member towards a predefined safety position. It may be for example a return spring.
L'invention concerne aussi un collecteur d'admission pour un module d'admission d'air configuré pour alimenter au moins un cylindre de moteur à combustion interne, par un flux d'air comprenant des gaz d'admission et/ou des gaz d'échappement recirculés (EGR), caractérisé en ce qu'il comporte au moins un dispositif de distribution de gaz d'échappement recirculés tel que défini précédemment.The invention also relates to an intake manifold for an air intake module configured for supplying at least one cylinder of an internal combustion engine, by an air stream comprising intake gases and / or combustion gases. recirculated exhaust (EGR), characterized in that it comprises at least one recirculated exhaust gas distribution device as defined above.
L'invention concerne également un module d'admission d'air, tel que de l'air de suralimentation, configuré pour alimenter au moins un cylindre de moteur à combustion interne, par un flux d'air comprenant des gaz d'admission et/ou des gaz d'échappement recirculés (EGR), caractérisé en qu'il comporte au moins un dispositif de distribution de gaz d'échappement recirculés tel que défini précédemment.The invention also relates to an air intake module, such as supercharging air, configured to supply at least one cylinder of an internal combustion engine, by an air flow comprising intake gases and / or or recirculated exhaust gas (EGR), characterized in that it comprises at least one recirculated exhaust gas distribution device as defined above.
Selon un mode de réalisation, le module d'admission d'air comprend un échangeur thermique configuré pour conditionner le flux d'air, et un collecteur d'admission configuré pour alimenter au moins un cylindre du moteur agencé en aval de l'échangeur thermique selon le sens d'écoulement du flux d'air dans le module d'admission. Le dispositif de distribution de gaz d'échappement recirculés est agencé en aval de l'échangeur thermique, sur une partie en amont du collecteur d'admission, par rapport au sens d'écoulement du flux d'air dans le module d'admission.According to one embodiment, the air intake module comprises a heat exchanger configured to condition the flow of air, and an intake manifold configured to supply at least one cylinder of the engine arranged downstream of the heat exchanger. according to the flow direction of the air flow in the intake module. The recirculated exhaust gas distribution device is arranged downstream of the heat exchanger, on a portion upstream of the intake manifold, with respect to the direction of flow of the air flow in the intake module.
D'autres avantages et caractéristiques apparaîtront à la lecture de la description d'un exemple illustratif mais non limitatif de la présente invention, ainsi que des dessins annexés sur lesquels :
- la
figure 1 montre un module d'admission d'air équipé d'un dispositif de distribution de gaz d'échappement selon l'invention, - la
figure 2 est une vue schématique représentant un collecteur d'admission du module d'admission de lafigure 1 , comprenant un dispositif de distribution de gaz d'échappement, et - la
figure 3 est une vue en coupe du module d'admission, - la
figure 4 est une vue éclatée du collecteur d'admission et d'un organe rotatif de contrôle des flux de gaz d'échappement, et - la
figure 5 est une vue du module d'admission représentant de façon schématique la connexion fluidique entre l'organe rotatif de contrôle et une canalisation d'acheminement de gaz d'échappement recirculés.
- the
figure 1 shows an air intake module equipped with an exhaust gas distribution device according to the invention, - the
figure 2 is a schematic view showing an intake manifold of the intake module of thefigure 1 , comprising an exhaust gas distribution device, and - the
figure 3 is a sectional view of the intake module, - the
figure 4 is an exploded view of the intake manifold and a rotary member for controlling the flow of exhaust gas, and - the
figure 5 is a view of the intake module schematically showing the fluid connection between the rotary control member and a recirculated exhaust gas channel.
Dans ces figures, les éléments sensiblement identiques portent les mêmes références.In these figures, the substantially identical elements bear the same references.
On a représenté sur la
Le module d'admission 1 comporte un collecteur d'admission 3, aussi appelé collecteur de répartition, dans lequel débouche(nt) le(s) conduit(s) d'alimentation des cylindres du moteur.The
Le moteur étant multicylindres, le collecteur d'admission 3 est configuré pour répartir les flux de gaz d'admission entre les conduits respectivement associés à un cylindre du moteur selon l'exemple illustré.Since the engine is multi-cylinder, the
Le module d'admission 1 comporte en outre un collecteur d'entrée 5 permettant d'alimenter le collecteur d'admission 3 en gaz d'admission.The
Le module d'admission 1 peut comporter un échangeur thermique 7 que traversent les gaz d'admission provenant du collecteur d'entrée 5 avant d'être distribués dans les conduits d'alimentation des différents cylindres. L'échangeur thermique 7 est configuré pour refroidir l'air de suralimentation. Un tel échangeur thermique 7 est généralement nommé refroidisseur d'air de suralimentation, connu sous l'abréviation « RAS ». Un tel échangeur thermique 7 peut comporter un faisceau de tubes ou plaques (non représentés) délimitant des canaux de circulation d'un fluide, tel que le liquide de refroidissement, et présente au moins une tubulure 9 d'entrée et de sortie pour le liquide de refroidissement.The
Par la suite, on définit les termes « amont » et « aval » par rapport au sens de circulation de l'air de suralimentation dans le module d'admission 1. Selon le mode de réalisation illustré sur la
En ce qui concerne le collecteur d'admission 3, il permet une admission répartie, dans les cylindres du moteur, des gaz d'admission et/ou des gaz d'échappement recirculés.With regard to the
Le collecteur d'admission 3 est par exemple en métal et peut être monté sur la culasse du moteur (non représenté).The
Afin de permettre l'admission en air de suralimentation, éventuellement refroidi, dans chacun des cylindres du moteur (non représenté), le collecteur d'admission 3 comporte au moins un canal de sortie 10 formant section de passage pour l'air de suralimentation. On entend ici par air de suralimentation de l'air frais éventuellement mélangé de gaz d'échappement récupérés en sortie moteur.In order to allow the intake of charge air, possibly cooled, into each of the cylinders of the engine (not shown), the
Selon l'exemple illustré, le collecteur d'admission 3, monté en aval de l'échangeur thermique 7, comprend une partie en amont ouverte sur laquelle débouche la face de sortie du faisceau de l'échangeur thermique 7, et une partie en aval destinée à être fixée sur la culasse du moteur. La partie en aval du collecteur d'admission 3 comprend ici le ou les canaux de sortie 10 agencés pour déboucher respectivement dans les cylindres d'admission du moteur.According to the illustrated example, the
Le collecteur d'admission 3 comporte de plus un dispositif de distribution 11 des gaz d'échappement recirculés.The
Selon l'exemple illustré, le dispositif de distribution 11 est au niveau de la partie en amont du collecteur d'admission 3.According to the illustrated example, the dispensing
Le dispositif de distribution 11 permet une injection des gaz d'échappement recirculés dans le flux d'air de suralimentation.The dispensing
À cet effet, en référence à la
Le canal de distribution 13 est agencé sur la partie en amont du collecteur d'admission 3. Le canal de distribution 13 s'étend dans l'exemple illustré sur les
Le canal de distribution 13 s'étend ici sur toute la largeur du collecteur d'admission 3.The
Il peut s'agir d'un canal de distribution 13 de forme sensiblement cylindrique.It may be a
Le ou les premiers trous d'injection 15 sont quant à eux par exemple pratiqués sur une paroi du canal de distribution 13 en aval par rapport au sens de circulation de l'air de suralimentation.The first or the first injection holes 15 are, for example, made on a wall of the
Selon l'exemple illustré, le canal de distribution 13 comporte une série de premiers trous d'injection 15, ici quatre premiers trous d'injection 15.According to the illustrated example, the
Les premiers trous d'injection 15 sont à titre d'exemple sensiblement circulaires. Ils pourraient aussi être ovales ou de toutes autres formes appropriées.The first injection holes 15 are, for example, substantially circular. They could also be oval or any other suitable forms.
Bien entendu, le collecteur d'admission 3 peut présenter un nombre de premiers trous d'injection 15 différents. Par ailleurs, en variante de réalisation on peut prévoir une autre forme ou des dimensions des premiers trous d'injection 15 différents.Of course, the
Le dispositif de distribution 11 comporte en outre un organe de contrôle 17 configuré pour moduler le flux de gaz d'échappement recirculés qui est injecté par le premier moyen d'injection 15.The dispensing
Pour ce faire, l'organe de contrôle 17 est ici conformé de manière à faire varier les dimensions des premiers trous d'injection 15. En particulier, dans le cas de premiers trous d'injection 15 de forme sensiblement circulaire, l'organe de contrôle 17 est conformé de manière à ajuster le diamètre des premiers trous d'injection 15.To do this, the
Les dimensions, en particulier le diamètre, des premiers trous d'injection 15 sont liées au régime moteur. Autrement dit, l'organe de contrôle permet d'ajuster les dimensions des premiers trous d'injection 15 en fonction du régime moteur.The dimensions, in particular the diameter, of the first injection holes 15 are related to the engine speed. In other words, the control member makes it possible to adjust the dimensions of the first injection holes 15 as a function of the engine speed.
L'organe de contrôle 17 peut être entraîné par un actionneur 18 qui peut être électrique ou en variante pneumatique. À l'aide d'un actionneur 18 électrique, on peut prévoir un réglage fin en continu de la position, par exemple angulaire, de l'organe de contrôle 17 avec une amplitude de mouvement très faible. À l'aide d'un actionneur 18 pneumatique, on peut prévoir par exemple un nombre prédéfini de positions angulaires de l'organe de contrôle 17.The
Selon une alternative, l'organe de contrôle 17 peut être entraîné par l'arbre moteur.Alternatively, the
Par ailleurs, afin d'éviter l'encrassement du dispositif de distribution 11, on peut prévoir d'actionner rapidement et plusieurs fois l'organe de contrôle 17 de façon à éloigner les polluants.Moreover, in order to avoid fouling of the
Il s'agit par exemple d'un organe de contrôle 17 rotatif. C'est donc en fonction de la position angulaire de l'organe de contrôle rotatif 17 que les dimensions des premiers trous d'injection 15 peuvent être ajustées.This is for example a
Selon une alternative non représentée, l'organe de contrôle 17 est mobile en translation. À titre d'exemple, on peut prévoir un volet de régulation mobile en translation tel qu'un volet de type guillotine.According to an alternative not shown, the
Selon le mode de réalisation illustré sur les
Le boisseau 17 est configuré pour tourner autour de son axe longitudinal.The
Le boisseau 17 est apte à être disposé de sorte que son axe longitudinal soit agencé sensiblement transversalement par rapport à la direction d'écoulement de l'air de suralimentation.The
Le boisseau 17 est agencé dans le canal de distribution 13 de manière à s'étendre face à la sortie de l'échangeur thermique 7, sensiblement transversalement à la direction d'écoulement de l'air de suralimentation. Le boisseau 17 peut s'étendre sur toute la longueur du canal de distribution 13 et donc ici sur toute la largeur du collecteur d'admission 3.The
En se référant de nouveau à la
Le boisseau 17 est conformé de manière à autoriser ou bloquer la circulation des gaz d'échappement recirculés, mais également à moduler le flux de gaz d'échappement, notamment en ajustant la section de passage des premiers trous d'injection 15, en fonction de la position angulaire du boisseau 17.The
À cet effet, le boisseau 17 comporte un deuxième moyen d'injection 21, tel qu'au moins un deuxième trou d'injection 21.For this purpose, the
Le deuxième moyen d'injection 21 est conformé de manière à pourvoir faire varier / ajuster la section de passage du flux de gaz d'échappement recirculés par le premier moyen d'injection 15.The second injection means 21 is shaped so as to make it possible to vary / adjust the flow section of the flow of exhaust gas recirculated by the first injection means 15.
Selon le mode de réalisation illustré, le boisseau 17 comporte une série de deuxièmes trous d'injection 21, plus précisément de même nombre que les premiers trous d'injection 15, ici quatre.According to the illustrated embodiment, the
Selon le mode de réalisation illustré sur les
Les deuxièmes trous d'injection 21 permettent, lorsqu'ils sont au moins partiellement en vis-à-vis des premiers trous d'injection 15, l'injection des gaz d'échappement dans le flux d'air de suralimentation.The second injection holes 21 allow, when they are at least partially vis-à-vis the first injection holes 15, the injection of the exhaust gas into the supercharging air stream.
En effet, le boisseau 17 est apte à être agencé dans une position permettant la mise en communication fluidique entre un premier trou d'injection 15 et un deuxième trou d'injection 21 associés.Indeed, the
Plus précisément, chaque deuxième trou d'injection 21 est agencé sur le boisseau 17 de manière à pouvoir être aligné avec un premier trou d'injection 15 associé en fonction de la position du boisseau 17, tel qu'illustré sur les
Selon l'exemple illustré sur la
Bien entendu, le nombre de deuxièmes trous d'injection 21 peut varier. On peut aussi prévoir une forme ou des dimensions des deuxièmes trous d'injection différents. On peut également prévoir une répartition différente des deuxièmes trous d'injection 21 sur le boisseau 17. En particulier, les deuxièmes trous d'injection 21 peuvent ne pas être alignés les uns par rapport aux autres.Of course, the number of second injection holes 21 may vary. It is also possible to provide a shape or dimensions of the second different injection holes. It is also possible to provide a different distribution of the second injection holes 21 on the
L'injection des gaz d'échappement est répartie grâce à la répartition des premiers trous d'injection 15 le long du canal de distribution 13 et à la répartition des deuxièmes trous d'injection 21 le long du boisseau 17.The injection of the exhaust gas is distributed thanks to the distribution of the first injection holes 15 along the
Ainsi, dans le volume du collecteur d'admission 3 en aval du boisseau 17 selon le sens d'écoulement de l'air de suralimentation, les gaz d'admission admis par la face amont du collecteur d'admission 3 se mélangent avec les gaz d'échappement recirculés admis par le dispositif de distribution 11.Thus, in the volume of the
L'air de suralimentation comprenant de l'air frais éventuellement mélangé de gaz d'échappement recirculés est alors réparti dans les canaux de sortie 10 afin d'alimenter les cylindres du moteur en gaz pour leur combustion.The charge air comprising fresh air possibly mixed with recirculated exhaust gas is then distributed in the
Par ailleurs, en se référant de nouveau à la
Par ailleurs, selon un mode de réalisation non illustré, on peut prévoir au moins un moyen de rappel, tel qu'un ressort de rappel, agencé de manière à solliciter le boisseau 17 vers une position de sécurité prédéfinie, par exemple en cas de dysfonctionnement de l'actionneur 18. À titre d'exemple non limitatif, cette position prédéfinie peut être telle que les deuxièmes trous d'injection 21 du boisseau 17 coïncident avec les premiers trous d'injection 15 du canal de distribution 13 ou au contraire telle que les deuxièmes trous d'injection 21 du boisseau 17 ne soient pas alignés avec les premiers trous d'injection 15 du canal de distribution 13.Moreover, according to a non-illustrated embodiment, it is possible to provide at least one return means, such as a return spring, arranged in such a way as to urge the
Ainsi, le dispositif de distribution 11 permet une distribution active des gaz d'échappement recirculés, autrement dit permet une adaptation active des flux de gaz d'échappement recirculés par les premiers moyens d'injection 15, selon le débit des gaz d'échappement recirculés arrivant au niveau de l'orifice d'entrée de gaz 9.Thus, the
En effet, avec un tel dispositif de distribution 11, la section de passage des flux de gaz d'échappement recirculés peut être ajustée en fonction de la vitesse ou du débit des gaz d'échappement recirculés.Indeed, with such a
À titre d'exemple illustratif et non limitatif, en cas de faible débit des gaz d'échappement recirculés, la section de passage pour le gaz définie par le premier trou d'injection 15 le plus proche de l'orifice d'entrée de gaz 19 peut être diminuée de manière à forcer le gaz d'échappement vers les autres premiers trous d'injection 15 plus éloignés de l'orifice d'entrée de gaz 19. Autrement dit, en cas de faible débit des gaz d'échappement recirculés, le premier trou d'injection 15 doit présenter un plus petit diamètre par rapport aux autres premiers trous d'injection 15. Pour ce faire, dans le cas d'un boisseau rotatif 17, le boisseau 17 est tourné dans une position angulaire correspondante.By way of illustrative and non-limiting example, in the case of a low flow rate of the recirculated exhaust gas, the passage section for the gas defined by the
Au contraire, en cas de débit élevé des gaz d'échappement recirculés, le premier trou d'injection 15 le plus proche de l'orifice d'entrée de gaz 19 risque d'être bypassé, le gaz d'échappement circulant plutôt vers les trous d'injection 15 plus éloignés de l'orifice d'entrée de gaz 19. Dans ce cas, la section de passage pour le gaz définie par le premier trou d'injection 15 le plus proche de l'orifice d'entrée de gaz 19 peut être augmentée de manière à forcer le passage du gaz d'échappement par ce premier trou d'injection 15 le plus proche de l'orifice d'entrée de gaz 19. Autrement dit, en cas de débit élevé des gaz d'échappement recirculés, le premier trou d'injection 15 doit présenter un plus grand diamètre par rapport aux autres premiers trous d'injection 15. Pour ce faire, dans le cas d'un boisseau rotatif 17, le boisseau 17 est tourné dans une position angulaire correspondante.On the contrary, in the case of a high flow rate of the recirculated exhaust gas, the
En modulant ainsi la section de passage du flux de gaz d'échappement, on peut obtenir un taux de gaz d'échappement dans les cylindres qui soit satisfaisant pour plusieurs points de fonctionnement du moteur.By thus modulating the passage section of the exhaust gas flow, it is possible to obtain an exhaust gas rate in the cylinders which is satisfactory for several operating points of the engine.
Un calculateur dans le véhicule peut par exemple détecter le débit des gaz d'échappement recirculés et envoyer une consigne correspondante à l'actionneur 18 pour entraîner l'organe de contrôle 17 dans la position adéquate pour faire varier le diamètre des premiers trous d'injection 15.A computer in the vehicle can for example detect the flow rate of the recirculated exhaust gas and send a corresponding instruction to the
On obtient ainsi une distribution des gaz d'échappement recirculés appropriée pour une plage de régime moteur, par exemple de l'ordre de 1250 à 2500 tr/min, qui est plus large que pour les solutions de l'art antérieur permettant une distribution passive des gaz d'échappement, c'est-à-dire sans adaptation de la section de passage du flux de gaz d'échappement recirculés.This gives a recirculated exhaust gas distribution suitable for a range of engine speed, for example of the order of 1250 to 2500 rpm, which is wider than for the solutions of the prior art for passive distribution exhaust gas, that is to say without adaptation of the passage section of the flow of recirculated exhaust gas.
Enfin, il n'est pas nécessaire de prévoir une interface pour relier le boisseau 17 à une vanne (non représentée) de distribution des gaz d'échappement recirculés dans le boisseau 17, comme cela est requis dans les solutions de l'art antérieur pour doser la quantité de gaz d'échappement recirculés à introduire dans le canal de distribution 13.Finally, it is not necessary to provide an interface for connecting the
En effet, une telle vanne n'est pas obligatoire car le dosage du flux de gaz d'échappement recirculés à injecter dans le flux d'air de suralimentation peut être fait directement par le dispositif de distribution 11.Indeed, such a valve is not mandatory because the metering of the recirculated exhaust gas stream to be injected into the supercharging air stream can be done directly by the
Ainsi, comme cela est représenté de façon schématique et simplifiée sur la
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1362279A FR3014497B1 (en) | 2013-12-09 | 2013-12-09 | RECIRCULATED EXHAUST GAS DISTRIBUTION DEVICE, ADMISSION COLLECTOR AND CORRESPONDING ADMISSION MODULE. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2881576A1 true EP2881576A1 (en) | 2015-06-10 |
EP2881576B1 EP2881576B1 (en) | 2020-07-08 |
Family
ID=50102053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14195476.8A Active EP2881576B1 (en) | 2013-12-09 | 2014-11-28 | Intake module |
Country Status (4)
Country | Link |
---|---|
US (1) | US9650999B2 (en) |
EP (1) | EP2881576B1 (en) |
JP (1) | JP6097736B2 (en) |
FR (1) | FR3014497B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3171013A1 (en) * | 2015-11-17 | 2017-05-24 | Volvo Car Corporation | Tunable intake system for exhaust gas recirculation in an internal combustion engine |
CN108119268A (en) * | 2016-11-30 | 2018-06-05 | 爱信精机株式会社 | Inlet duct |
CN109798205A (en) * | 2019-04-11 | 2019-05-24 | 潍柴动力股份有限公司 | EGR mixer and engine with it |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3007470B1 (en) * | 2013-06-25 | 2017-08-11 | Valeo Systemes De Controle Moteur | DISTRIBUTION MODULE FOR DISTRIBUTING A MIXTURE OF ADMISSION |
JP6399074B2 (en) * | 2016-11-11 | 2018-10-03 | マツダ株式会社 | Engine intake system with intercooler |
US11280301B2 (en) * | 2020-01-20 | 2022-03-22 | Mazda Motor Corporation | Intake device of engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09273452A (en) * | 1996-04-09 | 1997-10-21 | Hino Motors Ltd | Exhaust gas recirculation device |
JPH10266903A (en) * | 1997-03-25 | 1998-10-06 | Toyota Autom Loom Works Ltd | Exhaust gas recirculating device in internal combustion engine |
WO2009141212A1 (en) * | 2008-05-21 | 2009-11-26 | Pierburg Gmbh | Exhaust gas recirculation device for an internal combustion engine |
FR2965306A1 (en) * | 2010-09-27 | 2012-03-30 | Valeo Systemes Thermiques | DEVICE FOR MIXING A RECIRCULATED INTAKE GAS FLOW AND A RECIRCULATED EXHAUST GAS FLOW COMPRISING RECIRCULATED EXHAUST GAS FLOW ISOLATION MEANS |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121851U (en) * | 1984-07-12 | 1986-02-08 | マツダ株式会社 | Engine exhaust recirculation control device |
JP2978677B2 (en) * | 1993-07-07 | 1999-11-15 | 三菱電機エンジニアリング株式会社 | Electric control valve device |
US7077190B2 (en) * | 2001-07-10 | 2006-07-18 | Denso Corporation | Exhaust gas heat exchanger |
EP1457651A2 (en) * | 2003-03-10 | 2004-09-15 | Hitachi, Ltd. | Mixture supply device for internal-combustion engine |
JP2007085191A (en) * | 2005-09-20 | 2007-04-05 | Denso Corp | Valve opening/closing device |
JP4592108B2 (en) * | 2008-05-14 | 2010-12-01 | 株式会社日本自動車部品総合研究所 | Intake device for internal combustion engine |
CN102057152B (en) * | 2008-06-12 | 2015-06-17 | 珀金斯发动机有限公司 | Exhaust gas mixing system |
ATE556212T1 (en) * | 2009-12-09 | 2012-05-15 | Caterpillar Motoren Gmbh & Co | MIXING TUBE FOR RECYCLED EXHAUST AND AIR |
FR2973446B1 (en) * | 2011-03-31 | 2015-08-21 | Valeo Systemes Thermiques | RECIRCULATED EXHAUST GAS INJECTION DEVICE, DISTRIBUTOR HOUSING AND POWER MODULE COMPRISING SAID DEVICE |
-
2013
- 2013-12-09 FR FR1362279A patent/FR3014497B1/en not_active Expired - Fee Related
-
2014
- 2014-11-28 EP EP14195476.8A patent/EP2881576B1/en active Active
- 2014-12-08 US US14/563,319 patent/US9650999B2/en active Active
- 2014-12-09 JP JP2014249244A patent/JP6097736B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09273452A (en) * | 1996-04-09 | 1997-10-21 | Hino Motors Ltd | Exhaust gas recirculation device |
JPH10266903A (en) * | 1997-03-25 | 1998-10-06 | Toyota Autom Loom Works Ltd | Exhaust gas recirculating device in internal combustion engine |
WO2009141212A1 (en) * | 2008-05-21 | 2009-11-26 | Pierburg Gmbh | Exhaust gas recirculation device for an internal combustion engine |
FR2965306A1 (en) * | 2010-09-27 | 2012-03-30 | Valeo Systemes Thermiques | DEVICE FOR MIXING A RECIRCULATED INTAKE GAS FLOW AND A RECIRCULATED EXHAUST GAS FLOW COMPRISING RECIRCULATED EXHAUST GAS FLOW ISOLATION MEANS |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3171013A1 (en) * | 2015-11-17 | 2017-05-24 | Volvo Car Corporation | Tunable intake system for exhaust gas recirculation in an internal combustion engine |
CN106870213A (en) * | 2015-11-17 | 2017-06-20 | 沃尔沃汽车公司 | For the adjustable gas handling system of explosive motor waste gas recycling |
US10344716B2 (en) | 2015-11-17 | 2019-07-09 | Volvo Car Corporation | Tunable intake system for exhaust gas recirculation in an internal combustion engine |
CN108119268A (en) * | 2016-11-30 | 2018-06-05 | 爱信精机株式会社 | Inlet duct |
CN108119268B (en) * | 2016-11-30 | 2021-03-12 | 爱信精机株式会社 | Air intake device |
CN109798205A (en) * | 2019-04-11 | 2019-05-24 | 潍柴动力股份有限公司 | EGR mixer and engine with it |
CN109798205B (en) * | 2019-04-11 | 2024-01-12 | 潍柴动力股份有限公司 | EGR (exhaust gas recirculation) mixer and engine with same |
Also Published As
Publication number | Publication date |
---|---|
FR3014497A1 (en) | 2015-06-12 |
US20150159590A1 (en) | 2015-06-11 |
JP6097736B2 (en) | 2017-03-15 |
FR3014497B1 (en) | 2018-03-16 |
US9650999B2 (en) | 2017-05-16 |
EP2881576B1 (en) | 2020-07-08 |
JP2015113843A (en) | 2015-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2881576B1 (en) | Intake module | |
EP2954183B1 (en) | Device for exhaust gas orientation | |
WO2014122389A1 (en) | System for supercharging the intake gases and for recirculating the exhaust gases of an engine and associated control method | |
EP2783097B1 (en) | Control valve for an internal combustion engine exhaust gas recirculation system | |
EP2881571B1 (en) | Device for controlling a flow of intake gas and/or recirculated exhaust gas in an internal combustion engine cylinder and corresponding intake module | |
FR2923886A1 (en) | Valve e.g. three-way valve, for air supplying circuit of e.g. heat engine, in motor vehicle, has rotary unit moved inside body in manner to control passage of air via openings with rule defined according to angular position of rotary unit | |
FR2920853A1 (en) | Valve i.e. three-way control valve, for e.g. heat engine of motor vehicle, has rotating unit moved inside body for controlling passage of air through openings of body with defined law based on angular position of rotating unit in body | |
FR2728939A1 (en) | IMPROVED METHOD AND APPARATUS FOR RECYCLING EXHAUST GAS AT THE INTAKE OF A FOUR-TIME ENGINE WITH COMMAND IGNITION | |
EP0577451B1 (en) | Device for controlling the pneumatic injection of carburetted mixture for a two stroke internal combustion engine and its use | |
FR2928704A1 (en) | Air and exhaust gas intake distributing device for cylinder head of e.g. oil engine, of motor vehicle, has chamber with air and exhaust gas intake openings and chamber supplying openings that are selectively and partially closed by shutter | |
EP0478435A1 (en) | Intake device for internal combustion engine | |
FR2914952A1 (en) | Exhaust gas recirculation rate adaptation device i.e. three-way valve, for oil engine, has deflector favoring exhaust gas circulation towards exhaust pipe in certain blocking positions of blocking units | |
FR2803626A1 (en) | INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION WITH CONTROLLED VALVES | |
FR2990741A1 (en) | FLUID CIRCULATION VALVE, IN PARTICULAR FOR A MOTOR VEHICLE, AND THERMAL CONDITIONING DEVICE COMPRISING SUCH A VALVE | |
WO2017006025A1 (en) | Exhaust gas recirculation circuit for a spark-ignition heat engine | |
EP0637679A1 (en) | Two strobe engine | |
EP3244045B1 (en) | Method for controlling a motor device and associated motor device | |
FR2743111A1 (en) | Motor vehicle I.C. engine inlet | |
FR3001772A1 (en) | EXHAUST GAS RECIRCULATION VALVE | |
FR3058465A1 (en) | ARRANGEMENT OF SHUTTER AGAINST FLOW | |
EP2855911A1 (en) | Two-way metering device and applications of said metering device | |
FR3060665A1 (en) | EXHAUST GAS CIRCULATION ASSEMBLY OF A THERMAL ENGINE | |
EP2602467A1 (en) | Device for air recirculation in an internal combustion engine | |
FR2868812A1 (en) | Internal combustion engine for motor vehicle, has controlled deformable diaphragm projecting inside intake port in deformed position, for forming deflector accelerating inlet gas flow to produce tumble type streamlined movement for flow | |
FR2879667A1 (en) | Exhaust gas diffuser-mixer for internal combustion engine of motor vehicle, has endless screw to drive closing unit by displacing closing unit along side wall of conduit to partially close inlet opening |
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 |
|
17P | Request for examination filed |
Effective date: 20141128 |
|
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 |
|
17Q | First examination report despatched |
Effective date: 20160630 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 602014067428 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: F02M0035100000 Ipc: F02M0026000000 |
|
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: 20200214 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F02M 26/19 20160101ALI20200131BHEP Ipc: F02M 26/21 20160101ALI20200131BHEP Ipc: F02M 26/70 20160101ALI20200131BHEP Ipc: F02M 26/09 20160101ALI20200131BHEP Ipc: F02M 35/10 20060101ALI20200131BHEP Ipc: F02M 26/12 20160101ALI20200131BHEP Ipc: F02M 26/27 20160101ALI20200131BHEP Ipc: F02M 26/00 20160101AFI20200131BHEP |
|
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: AT Ref legal event code: REF Ref document number: 1288722 Country of ref document: AT Kind code of ref document: T Effective date: 20200715 Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602014067428 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: FRENCH |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1288722 Country of ref document: AT Kind code of ref document: T Effective date: 20200708 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20200708 |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200708 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: 20201109 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: 20200708 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: 20201008 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: 20201008 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: 20201009 Ref country code: SE 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: 20200708 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: 20200708 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: 20200708 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: 20200708 |
|
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: 20201108 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: 20200708 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: 20200708 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: 20200708 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL 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: 20200708 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602014067428 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT 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: 20200708 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: 20200708 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: 20200708 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: 20200708 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: 20200708 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: 20200708 |
|
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: 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: 20200708 |
|
26N | No opposition filed |
Effective date: 20210409 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20200708 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: 20200708 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20201128 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201128 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20201130 |
|
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: 20200708 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201130 |
|
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: 20201128 |
|
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: 20201128 |
|
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: 20201108 Ref country code: TR 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: 20200708 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: 20200708 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: 20200708 |
|
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: 20200708 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201130 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230528 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20231124 Year of fee payment: 10 Ref country code: DE Payment date: 20231107 Year of fee payment: 10 |