EP3250809A1 - Air filter for the intake line of a motor vehicle internal combustion engine - Google Patents
Air filter for the intake line of a motor vehicle internal combustion engineInfo
- Publication number
- EP3250809A1 EP3250809A1 EP16702166.6A EP16702166A EP3250809A1 EP 3250809 A1 EP3250809 A1 EP 3250809A1 EP 16702166 A EP16702166 A EP 16702166A EP 3250809 A1 EP3250809 A1 EP 3250809A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air filter
- plate
- air
- filter according
- foam block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 12
- 239000006260 foam Substances 0.000 claims abstract description 54
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 230000003584 silencer Effects 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
-
- 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
- F02M35/10236—Overpressure or vacuum relief means; Burst protection
-
- 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
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1283—Manufacturing or assembly; Connectors; Fixations
-
- 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
- F02M35/14—Combined air cleaners and silencers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to an air filter for an intake line of supercharged internal combustion engine of a motor vehicle.
- the air intake line of a supercharged engine comprises an air filter provided with a housing, a turbocharger compressor, and a metering valve of the air arranged on a main branch.
- the intake line further comprises a discharge duct which is located in branch of the main branch between a downstream point and an upstream point of the compressor.
- one end of the discharge duct is connected to the main branch through a stitching made in the housing of the air filter.
- the intake line also comprises a discharge valve adapted to prohibit or allow a circulation of a fluid inside the discharge duct.
- a butterfly flap which comprises the intake line, is placed in the closed position, that is to say in a position decreasing a passage of air inside the intake line.
- the compressor which has a clean inertia, nevertheless continues to compress the intake air. This results in a temporary overpressure which is likely to cause a reverse flow phenomenon called "pumping" inside the compressor of the turbocharger. This eventually results in a deterioration of the compressor.
- the discharge conduit communicates the inlet line downstream and upstream of the compressor, in a direction of air flow inside the intake line. During the deceleration phase, such communication, modulated by the discharge valve, minimizes the pumping phenomenon.
- said air filter further comprises a discharge noise reduction device comprising:
- a porous foam block placed inside a cavity of said air filter, said foam block being intended to be traversed by compressed air (preferably all compressed air) issuing from said discharge duct; in order to reduce by absorption the acoustic energy of the compressed air coming from said discharge duct.
- compressed air preferably all compressed air
- the cavity is completely filled by the porous foam block: all the faces of the physical walls which delimit it are in contact with the foam.
- the block of foam comes to follow the shape of the cavity defined by its physical walls. The invention thus reduces the discharge noise by absorbing the acoustic energy by viscosity and / or thermal conduction through the foam that modifies the conditions at the limits of the flow in the air filter.
- said foam block comprises a parallelepiped portion and a heel.
- said discharge noise reduction device further comprises a set of plates comprising at least a first plate and a second plate, said plates each comprising a plurality of through openings, said plates being in contact with said porous foam block.
- the cavity is defined only by two plates vis-à-vis provided with openings.
- the foam block fills (completely) the cavity in that it is disposed between the two plates and is in contact with each of the faces of the plates that face each other.
- the block of foam which, on at least one of its lateral faces (those which are not exposed frontally to the flow of air), is not confined by physical walls.
- the compressed air enters the block of foam through the openings of the first plate, and out of the openings the second plate through the entire thickness of the foam block (the air leakage from the side walls of the non-confined foam block are negligible).
- said first plate rests on said foam heel so as to compress said foam heel.
- said second plate is made of material with a lower tank belonging to said housing. This minimizes the risk of leakage at the junction between the second plate and the air filter housing.
- said second plate is attached and guided vertically by rails attached to a lower tank belonging to said housing.
- zones located on the edge of said second plate are devoid of opening, said zones without opening being intended to cope with the ejection of compressed air into said cavity. This prevents the foam discovers an opening at the time of discharge likely to create acoustic leaks affecting the performance of the device in high frequency.
- said second plate having a plurality of rows of openings, a ratio between the radius of an opening and the sum of the radius and the gap between two adjacent openings is of the order of 0.73.
- said first plate having a plurality of rows of openings, a ratio between the radius of an opening and the sum of the radius and the gap between two adjacent openings is of the order of 0.71.
- At least one zone located on the edge of said first plate is devoid of opening, said area devoid of opening overhanging the ejection of compressed air into said cavity. This prevents the foam discovers an opening of the plate at the time of discharge.
- said air filter further comprises a fixing system of said first plate to said housing of said air filter.
- said first plate is attached to an intermediate tank of said air filter by means of a strip positioned on said intermediate tank on the quilting side and two staples securing said first plate to arches formed in said bowl. intermediate.
- said first plate is equipped with a latching device intended to cooperate with a corresponding shape formed in a structure of an intermediate vessel.
- said first plate and said second plate belong to an attached cage enclosing said foam block.
- said attached cage comprises a hinge and a detent means for cooperating each with a corresponding shape formed on one of the two transverse ends of an intermediate vessel.
- said first plate and said second plate belong to an insert having a substantially U-shaped section between the walls of which is wedged said foam block.
- FIG. 1 is a schematic representation of an air intake line of an internal combustion engine equipped with an air filter according to the present invention
- FIGS. 2a and 2b are perspective views of the air filter according to the present invention.
- FIG. 3a and 3b are perspective views of the lower single tank of the air filter according to the present invention.
- FIG. 4 is a perspective view of the foam block used with the discharge noise reduction device according to the present invention.
- Figure 5 is a perspective view illustrating an alternative embodiment of the horizontal plate of the discharge noise reduction device according to the present invention
- Figure 6a is a perspective view illustrating an alternative embodiment of the discharge noise reduction device according to the present invention
- Figure 6b is a perspective view illustrating the introduction of the device of Figure 6a in the air filter according to the present invention.
- Figure 7a is a perspective view illustrating a second alternative embodiment of the discharge noise reduction device according to the present invention.
- Figure 7b is a perspective view illustrating the introduction of the device of Figure 7a in the air filter according to the present invention.
- Figure 1 shows a supercharged internal combustion engine 1 which equips a motor vehicle and which is provided with an air intake line 2.
- the intake line 2 is intended to supply air to the engine 1 .
- the inlet line 2 comprises a main branch 3 of air inlet comprising successively in a direction of flow 4 of the air inside the inlet line 2: a air filter 6; a compressor 7 of a turbocharger and a metering valve 8 of the air, such as a throttle body.
- the air filter 6 is designed to retain impurities carried by the air circulating inside the intake line 2.
- the compressor 7 is able to compress the air prior to its admission inside the engine. internal combustion.
- the metering valve 8 is intended to control and regulate a flow of air admitted inside the internal combustion engine 1.
- the intake line 2 comprises a discharge duct 1 1 disposed in branch of the main branch 3 of air supply.
- the discharge duct 1 1 extends between a downstream point 14 situated downstream of the compressor 7 and an upstream point 15 corresponding to a branch of the air filter 6 to which the duct 11 is connected. It is specified here that the concepts of upstream and downstream agree according to the direction of flow of air 4 inside the main branch 3 of air intake of the intake line 2 when normal operation of the internal combustion engine 1.
- a discharge valve 18 selectively allows to prohibit or allow the circulation of air inside the discharge duct 1 January.
- the discharge valve 18, commonly referred to as “dump valve”, allows to discharge to a point of the intake line 2 upstream of the compressor 7 excessive pressure that is likely to be created downstream of the compressor 7, in particular during a sudden closure of the metering valve 8.
- the air filter 6 comprises a filter medium 21 located inside a housing 20 formed in particular by a lower tank 22, an intermediate tank 23, and an upper tank (not visible).
- An air inlet 26 is located upstream of the filtering medium 21 and an air outlet 27 is located downstream of the filter medium 21.
- the air filter 6 further comprises a device 30 for reducing the discharge noise, also called “silent”, comprising a first plate 31, said horizontal plate, substantially parallel to the bottom of the lower vessel 22, and a second plate 32, said vertical plate substantially perpendicular to the bottom of the lower vessel 22 and thus to the horizontal plate.
- the horizontal plates 31 and vertical 32 each comprise a plurality of through openings 33.
- the openings 33 are configured to divide the jet primary air from the discharge duct 1 1 in multiple streams so as to reduce the turbulent intensity by interaction of the jets between them.
- a porous foam block 34 shown in detail in Figure 4 is placed inside a cavity 37 of the filter 6.
- the foam block 34 traversed by the air from the discharge duct 1 1 is in contact with the perforated plates 31, 32 so as to reduce by absorption the acoustic energy of the compressed air from the discharge conduit 11.
- the foam block 34 has a calibrated flow resistivity as a function of the allowable pressure drop.
- the diameter of a cell of the foam is between 520 and 720 ⁇ .
- the foam block 34 has a density of between 27 and 31 kg / m3.
- the compressive strength at 40% is between 2.5 and 4.5 kPa.
- the elongation limit is of the order of 250%; while the tensile strength is of the order of 150 kPa.
- the vertical plate 32 is made of material with the lower tank 22.
- the vertical plate 32 is attached and guided vertically by slides fixed to the lower bowl 22 of the filter to air 6.
- Zones 40 located at the edge of the vertical plate 32 are devoid of opening 33. These zones 40 without opening 33 face the ejection of compressed air into the cavity 37.
- the reference 151 represents the entrance the air flow from the discharge duct 1 1. This prevents the foam block 34 discovers an opening 33 at the time of discharge likely to create acoustic leaks affecting the performance of the silencer 30 in high frequency. Since it is difficult to predict the movement of the foam, the dimensions of each of the zones 40 have been determined from the movement of the foam recorded by high speed cameras. 10mm wide is retained on each side of the vertical plate 32. It is however not necessary to provide a zone 40 without opening 33 on the side of the upper end adjacent to the horizontal plate 31.
- the thickness of the vertical plate 32 is chosen so as not to be too weak because it makes it difficult to control the vortex structure of the jet orifice outlet, nor too thick because it increases the resulting pressure drop. of the orifice system without significant gain in acoustic performance.
- a thickness of the vertical plate 32 equal to 3 mm is a good compromise.
- the vertical plate 32 has a plurality of rows of openings 33. In the embodiment, the vertical plate 32 has five rows of seven openings 33 each and a row of six openings 33 placed at the end. lower plate 32, 41 openings 33 in total.
- the openings 33 each have a diameter of 3 mm. However, as their end is very slightly flared, the same as a diffuser, the total diameter of an orifice is closer to 3.3mm than 3mm.
- the number and dimensions of the openings 33 may vary depending on the configuration of the air filter 6.
- the positioning of an opening 33 relative to another in the vertical plate 32 is determined from rules from the work of Middelton and Clark (PJF "Assepuis and development of methods of acoustic performance prediction for jet noise suppressors Institute for aerospace studies ", AFOSR 69-0780, 1969) on the prediction of the noise of jet of silent nozzles. These rules make it possible to determine an optimum ratio a corresponding to the ratio between the radius of an opening 33 and the sum of the radius and the distance between two adjacent openings 33 which is of the order of 0.73.
- a gap value E between two orifices equal to 0.6 mm is thus defined for a radius R enlarged by an opening 33 equal to 1.65 mm (see FIG. 3b).
- the gap E between two orifices 33 is measured along the straight line passing through the center of the two orifices 33.
- the foam block 34 has dimensions corresponding to the dimensions of the cavity 37 so as to match the shape of this cavity 37. This avoids the sound amplification related to the excitation of the cavity 37 by a shear flow.
- the foam block 34 comprises a parallelepipedal portion 41 and a heel 42.
- the parallelepipedal portion 41 has dimensions of height, of width , and depth equal to 50mm, 65mm, and 45mm respectively.
- the heel 42 has dimensions height, width, depth equal to 10mm, 80mm and 60mm respectively.
- the horizontal plate 31 which is reported relative to the housing 20 rests on the heel 42 of foam so as to compress the heel 42 against a border of the intermediate vessel 23. This allows to ensure the soundproofness of the silencer and the holding in position of the foam during successive discharges of compressed air.
- the heel 42 When the heel 42 is compressed by the horizontal plate 31, its height goes from 10mm (height at rest) to 2mm.
- the value of the thickness of the horizontal plate 31, which is for example of the order of 3 mm results from a compromise of benefits between the acoustics and the aunterlic.
- the horizontal plate 31 has in this case seven rows of nine openings 33 each, or 63 openings 33 in total.
- the openings 33 each have a diameter of the order of 4 mm.
- the end of each opening 33 is very slightly flared, so that the total diameter is closer to 4.4mm than 4mm.
- the positioning of the openings 33 relative to each other is determined from the rules from the work of Middelton and Clark. This leads to a value equal to 0.71, which defines a difference value E equal to 0.9 mm if the enlarged radius R of an opening 33 is equal to 2.25 mm.
- At least one zone 45 located at the edge of the horizontal plate 31 and overhanging the ejection of the compressed air in the cavity 37 is devoid of opening 33. This zone 45 extends for example over 25mm wide. This prevents the foam discovers an opening 33 of the plate at the time of discharge.
- the air filter 6 further comprises a fastening system 48 of the horizontal plate 31 to the housing 20 shown in Figure 2a.
- the horizontal plate 31 is fixed to the intermediate tank 23 of the air filter 6 by means of a strip 49 positioned on the intermediate tank 23 on the stitching side 15 and two staples 50 solidarisant the horizontal plate 31 arches formed in an intermediate tank 23.
- the horizontal plate 31 is equipped with a latching device 51 intended to cooperate by elastic deformation with a corresponding shape formed in the structure of the intermediate tank 23 of the filter. air 6.
- the plates 31 and 32 have different orientations adapted to the configuration of the casing 20 of the air filter 6.
- the plates 31 and 32 are not necessarily perpendicular to one another.
- the air filter 6 is free of perforated plates 31, 32, only the foam block 34 then to reduce the discharge noise.
- the foam block 34 is fixed by means of a layer of rough material, for example Velcro type, lining the inner walls of the casing 20 of the air filter 6.
- An attachment by gluing is preferably to be avoided since this greatly reduces the acoustic performance of the foam because the cells that were initially opened become artificially closed. In addition, gluing produces zones of strong stresses that favor tearing.
- the horizontal plate 31 and the vertical plate 32 belong to an attached cage 54 enclosing the foam block 34.
- the cage 54 also comprises other walls to form a hollow cage parallelepiped shape having a shape complementary to the cavity 37 with an open face to allow the insertion of the parallelepipedal portion of the block 34 inside the cage 54.
- the cage 54 comprises a hinge 55 and a means of snap 56, constituted in this case by a resilient tongue, each intended to cooperate with a corresponding shape formed on one of the two transverse ends of the intermediate tank 23 of the air filter 6. This ensures the establishment and maintaining the position of the cage 54 during successive discharges.
- the cage 54 also has support zones 57 on the walls of the air filter 6. At least one of these support zones 57 serves to compress the foam in the cage 54. With the exception of the zone located opposite the flow, the cage 54 has 148 holes of diameter 3 mm distributed on each of its walls.
- the absorbent material is an open-cell porous foam of high flow resistivity of the same type as that described above.
- the foam block 34 consists of a parallelepipedal portion 41 which is housed in the perforated cage 54 and a heel 42 which faces the ejection of the compressed air into the air filter 6.
- the acoustic attenuations obtained with this embodiment are worse than those obtained with the first embodiment.
- the difference in performance is mainly due to the fact that the muffler is an independent piece.
- the horizontal plate 31 and the vertical plate 32 belong to a substantially U-shaped insert 60 between the walls of which is jammed the foam block 34.
- the horizontal wall 31 forms the bottom of the U
- the vertical wall 32 forms one of the branches
- a third wall 32 'parallel to the wall 32 forms the second branch of the U.
- the air filter 6 comprises a set of latching means 61 intended to cooperate with corresponding shapes formed on the two transverse ends of the intermediate tank 23.
- the two vertical walls 32, 32 'of the silencer facing each other bear against the corresponding walls of the air filter 6. It should be noted that this phenomenon is amplified when the porous foam is inserted between these two walls.
- the muffler 30 comprises for example in this embodiment 152 holes 3mm diameter and spacing 6mm distributed on the three walls 31, 32, and 32 '.
- the shape of each of the walls 31, 32, 32 ' matches the wall of the corresponding air filter 6.
- the absorbent material of the foam block 34 is of the same type as that described above.
- Such an embodiment is however relatively complex to implement insofar as it is difficult to obtain optimum acoustic sealing at the horizontal and vertical walls because of the independent nature of the element 60 with respect to the 6.
- the dimensioning of the holes relative to each other ducts to a reduced attenuation of turbulent mixing noise is however relatively complex to implement insofar as it is difficult to obtain optimum acoustic sealing at the horizontal and vertical walls because of the independent nature of the element 60 with respect to the 6.
- the dimensioning of the holes relative to each other ducts to a reduced attenuation of turbulent mixing noise.
- the openings 33 in the form of a diffuser may have a circular or rectangular shape, or a shape for directing the flow.
- the silencer 30 comprises circular orifices made in metal plates.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Supercharger (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1550702A FR3032239B1 (en) | 2015-01-29 | 2015-01-29 | AIR FILTER FOR INTAKE LINE OF INTERNAL COMBUSTION ENGINE OF MOTOR VEHICLE |
PCT/FR2016/050004 WO2016120536A1 (en) | 2015-01-29 | 2016-01-05 | Air filter for the intake line of a motor vehicle internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3250809A1 true EP3250809A1 (en) | 2017-12-06 |
Family
ID=52779907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16702166.6A Withdrawn EP3250809A1 (en) | 2015-01-29 | 2016-01-05 | Air filter for the intake line of a motor vehicle internal combustion engine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3250809A1 (en) |
FR (1) | FR3032239B1 (en) |
WO (1) | WO2016120536A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6859848B2 (en) * | 2017-05-23 | 2021-04-14 | トヨタ紡織株式会社 | Internal combustion engine air cleaner |
FR3073011A1 (en) * | 2017-10-27 | 2019-05-03 | Psa Automobiles Sa | AIR FILTER FOR AN AIR INTAKE LINE OF A COMBUSTION ENGINE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008061363A1 (en) * | 2007-12-12 | 2009-08-20 | Daeki Corporation, Suwon-si | Air duct arrangement for vehicles |
FR2932852B1 (en) * | 2008-06-24 | 2010-08-13 | Peugeot Citroen Automobiles Sa | APPARATUS FOR COOLING INTAKE AIR OF AN INTERNAL COMBUSTION ENGINE. |
FR3002595B1 (en) * | 2013-02-25 | 2016-12-23 | Peugeot Citroen Automobiles Sa | AIR FILTER COMPRISING AN AIR INTAKE LINE OF AN ENGINE OF A MOTOR VEHICLE |
EP2902613B1 (en) * | 2014-01-31 | 2018-01-31 | Mann + Hummel Gmbh | Air noise reduction device |
-
2015
- 2015-01-29 FR FR1550702A patent/FR3032239B1/en active Active
-
2016
- 2016-01-05 WO PCT/FR2016/050004 patent/WO2016120536A1/en active Application Filing
- 2016-01-05 EP EP16702166.6A patent/EP3250809A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2016120536A1 (en) | 2016-08-04 |
FR3032239B1 (en) | 2018-07-27 |
FR3032239A1 (en) | 2016-08-05 |
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