EP4323214A1 - Dispositif de ventilation d'une installation de ventilation, chauffage et/ou climatisation d'un vehicule automobile - Google Patents
Dispositif de ventilation d'une installation de ventilation, chauffage et/ou climatisation d'un vehicule automobileInfo
- Publication number
- EP4323214A1 EP4323214A1 EP22722712.1A EP22722712A EP4323214A1 EP 4323214 A1 EP4323214 A1 EP 4323214A1 EP 22722712 A EP22722712 A EP 22722712A EP 4323214 A1 EP4323214 A1 EP 4323214A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resonator
- resonators
- cavity
- ventilation device
- air flow
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H2001/006—Noise reduction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0335—Noise absorbers by means of external rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/003—Rigid pipes with a rectangular cross-section
Definitions
- the present invention falls within the field of vehicle ventilation, heating and/or air conditioning systems, and more particularly in the field of ventilation devices for such systems.
- the ventilation, heating and/or air conditioning systems fitted to motor vehicles allow users of the motor vehicle to control a supply of cold air and/or hot air in different areas of the passenger compartment, such as at the level of the driver's feet, on a glazed surface of the vehicle and/or even at the level of the passengers.
- the circulation of air through such ventilation, heating and/or air conditioning systems favors the emission of numerous acoustic waves when these systems force the circulation of air towards the passenger compartment, for example.
- the acoustic waves produced can cause annoyance to the driver and/or passengers.
- this type of acoustic attenuation device comprises a Helmholtz module absorbing the acoustic waves at a predefined frequency.
- the Helmholtz modulus absorbs a low frequency acoustic wave.
- the movement of air causes acoustic waves over a range of frequencies, and in particular a range of low frequency waves, and not on a specific specific frequency.
- the present invention proposes a solution promoting the absorption of a maximum of acoustic waves over a predefined frequency range, thus making it possible to reduce the perception of these acoustic waves by the driver and/or the passenger present in the vehicle. cabin.
- the main subject of the present invention is a ventilation device comprising at least one duct intended to channel an air flow along a direction of flow of the air in the duct, the ventilation device comprising at least one member acoustic attenuation arranged at least in part around the conduit and composed of a network of resonators, each resonator comprising at least one cavity and a neck connecting the cavity to the conduit, the constituent resonators of the network of resonators being distributed at least parallel to the direction of flow of the air, characterized in that a distance separating two necks varies along a direction parallel to the air flow direction and in that a volume of the cavities and/or the necks varies along the direction parallel to the direction of air flow.
- the distance measured between two first necks of two adjacent resonators aligned along the airflow direction is different from a distance measured between two other necks of adjacent resonators of the array of resonators aligned with the first two resonators similarly, the volume of a cavity of a first resonator is different from a volume of a cavity of another resonator aligned along the direction of air flow with the first resonator.
- the network of resonators promotes the attenuation of the acoustic waves transported by the flow of air circulating in the duct and through the acoustic attenuation system.
- the latter absorbs part of the acoustic waves according to a frequency range which depends on the dimensions of the device, thus optimizing the feeling of the driver and/or passengers of a vehicle.
- a diameter of a first neck which may be three and a half millimeters in diameter and a height of, for example, ten millimeters, the height being measured along a main extension axis of the neck.
- the diameter of a neck is between two and a half millimeters to twenty millimeters.
- the height of a neck is between one millimeter and twenty-five millimeters
- the network of resonators comprises a first row of substantially similar resonators extending along a first direction perpendicular to the direction of flow of the air, the network of resonators comprising at at least a second row of resonators substantially similar extending along a second direction perpendicular to the first direction and to the direction of airflow.
- the network of resonators is organized in the form of a matrix comprising at least two rows of resonators, and where the resonators of the at least two rows are respectively aligned along the direction of air flow. It is understood that each resonator of one of the two rows of resonators is aligned with at least one resonator of the other of the two rows of resonators, along a direction perpendicular to the direction of air flow.
- the network of resonators comprises a first resonator, a second resonator and at least one third resonator, the second resonator being arranged between the first resonator and the third resonator in the direction parallel to the direction of air flow, a first distance measured between the neck of the first resonator and the neck of the second resonator being greater than a second distance measured between the neck of the second resonator and the neck of the third resonator.
- the first distance and the second distance are measured along a direction parallel to the direction of airflow, the first distance being measured between the center of the neck of the first resonator and the center of the neck of the second resonator, the second distance being measured between the center of the neck of the second resonator and the center of the neck of the third resonator.
- the variation between the first distance and the second distance is between two and ten millimeters.
- the first distance presents a variation of two to ten millimeters with the second distance, this variation possibly being a sum or a difference.
- the volume of a cavity of a first resonator located upstream of a second resonator along the direction parallel to the air flow direction is greater than the volume of the cavity of the second resonator.
- the first resonator and the second resonator are aligned along a direction parallel to the air flow direction, the cavity volume of the first resonator being larger than the cavity volume of the second resonator.
- the variation in volume between the cavity of the first resonator and the cavity of the second resonator is between two thousand two hundred and three thousand four hundred and fifty cubic millimetres. It is understood that the volume of each cavity of the resonator network comprises a volume comprised between these two values.
- a thickness of the cavity of the first resonator, measured parallel to the air flow direction is greater than a thickness of the cavity of the second resonator, measured parallel to the direction of air flow.
- the volume of the cavities therefore varies by changes in the dimension of the cavity measured along the direction parallel to the direction of flow of the air flow in the duct.
- At least one cavity of the network of resonators has a rectangular section.
- the resonators of the network of resonators comprise a cavity having a rectangular section
- At least one cavity of the network of resonators generally takes a parallelepiped shape.
- the resonators of the network of resonators comprise a cavity taking on the whole a parallelepiped shape.
- the array of resonators comprises at least one row of substantially similar resonators extending along a direction perpendicular to the direction of air flow.
- the network of resonators is organized in the form of a matrix comprising for example eight rows of resonators and where the resonators of the at least eight rows are respectively aligned along the direction of flow air.
- the acoustic attenuation system generally takes on a tubular shape of rectangular cross-section, presenting at least one internal face which delimits the duct. Furthermore, the acoustic attenuation system comprises four walls perpendicular in pairs and each extending in a plane at least parallel to the flow direction of the air, the network of resonators extending at least over two of the walls of the acoustic attenuation system.
- the network of resonators extends over four of the walls of the acoustic attenuation system.
- a section of the acoustic attenuation system determined perpendicularly to the air flow direction has a surface of between eighty and one hundred and twenty cm 2 .
- the present invention also relates to a ventilation, heating and/or air conditioning installation of a motor vehicle which comprises a ventilation device as described in this document, the ventilation device being installed at the level of an outlet of air from the ventilation, heating and/or air conditioning system.
- FIG. î is a representation in perspective of a ventilation device according to the invention.
- FIG. 2 is a longitudinal section of an attenuation member of the ventilation device shown in Figure 1;
- FIG. 3 is a cross section of an attenuation member of the ventilation device shown in Figure 1.
- transverse and “vertical” refer to the orientation of a ventilation device according to the invention.
- a longitudinal direction L corresponds to the main axis of extension of a duct of the ventilation device, this longitudinal direction being parallel to the longitudinal axis of a reference L, V, T illustrated in the figures.
- a transverse direction T corresponds to a main direction of extension of an acoustic attenuation member of the ventilation device, this transverse direction being parallel to a transverse axis T of the reference L, V, T illustrated in the figures, this transverse axis T being perpendicular to the longitudinal axis L.
- a vertical direction corresponds to a direction parallel to a vertical axis V of this reference L, V, T, this vertical axis V being perpendicular to the longitudinal axis L and the transverse axis T .
- FIG. 1 a ventilation device 1 according to the invention comprising at least one duct 2 intended to channel an air flow along an air flow direction A in said duct 2, the direction air flow A being parallel to the longitudinal direction L.
- the ventilation device i is configured to cooperate with a ventilation system, heating and / or air conditioning 3 installed in a motor vehicle for example.
- the ventilation, heating and/or air conditioning system 3 forces the circulation of a flow of air from the exterior of the vehicle and/or from the interior of the vehicle towards the passenger compartment of the vehicle.
- the ventilation, heating and/or air conditioning system 3 is also configured to be able to heat and/or cool the circulating air flow.
- the duct 2 of the ventilation device 1 participates in guiding the flow of air from the ventilation, heating and/or air conditioning system 3 towards the passenger compartment of the vehicle, for example.
- the duct 2 extends at least partly along the air flow direction A and has at least one opening 7 of rectangular section.
- the conduit 2 generally takes the form of a tube also having a rectangular section.
- a duct 2 having a circular or even triangular section would not depart from the scope of the invention.
- the ventilation device 1 comprises at least one sound attenuation system 4 arranged at least partly around the duct 2.
- the sound attenuation system 4 is ready everything around the conduit 2.
- the acoustic attenuation system 4 comprises at least two longitudinal walls 14a extending in a plane parallel to the longitudinal L and transverse T directions, and two vertical walls 14b extending in a plane parallel to the longitudinal L and vertical V directions, each of the walls 14a, 14b of the acoustic attenuation system 4 delimiting the duct 2.
- the acoustic attenuation system 4 is configured to absorb at least a part of the acoustic waves which come from the device of ventilation 1.
- the longitudinal 14a and vertical 14b walls can constitute the duct 2, the acoustic attenuation system 4 then being arranged around the duct 2, that is to say on its periphery.
- a section of the acoustic attenuation system 4 determined perpendicularly to the air flow direction A has a surface of between eighty and one hundred and twenty cm 2 . This surface corresponds to a projected surface of the duct 2 on a plane perpendicular to the direction of flow A, and bordered by the four walls of the acoustic attenuation system 4.
- the acoustic attenuation system 4 is at least composed of a network of resonators 6 configured to attenuate the acoustic waves transported through the flow of air circulating in the duct 2. This or these resonators are Helmholtz resonators.
- the network of resonators 6 extends at least along two of the walls 14a, 14b of the acoustic attenuation system 4.
- the network of resonators 6 extends along the four walls 14a, 14b participating in forming a closed periphery of the acoustic attenuation system 4.
- an acoustic attenuation system 4 at the level of which the network of resonators 6 extends over one, two or three walls 14a, 14b participating in forming the system acoustic attenuation 4 would not depart from the scope of the invention.
- Each resonator 6 comprises at least one cavity 8 and a neck 10 connecting the cavity 8 to the duct 2. It is understood from this that the network of resonators 6 is arranged around the longitudinal 14a and/or vertical 14b walls while being in aeraulic relation with the volume delimited by the duct 2 where the air flow circulates.
- Each cavity 8 of the network of resonators 6 comprises a space open only to the inside of the duct 2, via the neck 10. The latter generally takes the form of a tube of section circular opening on the one hand into the space delimited by the cavity 8 and on the other hand inside the conduit 2, by a mouth 25 visible in Figures 2 or 3.
- the resonators 6 are illustrated in FIG. 1 schematically, in particular by representing only the volume of the cavity and the volume of the neck, and disregarding a material which of course delimits these volumes.
- the cavities 8 and the necks 10 are embedded in a synthetic material constituting the acoustic attenuation system 4.
- the resonators 6 constituting the network of resonators 6 are distributed at least parallel to the direction of air flow A.
- the network of resonators 6 comprises at least two resonators 6 which are aligned along a direction parallel to the direction of air flow A. More precisely, the necks 10 of these resonators 6 are aligned along this direction parallel to the direction of air flow A.
- the network of resonators 6 comprises for example eight resonators 6 aligned one after the other along a direction parallel to the direction of air flow HAS.
- a distance separating the necks 10 of three aligned resonators 6 varies along the direction parallel to the air flow direction A.
- the distance measured between two first necks 10 of two adjacent resonators 6 aligned along the air flow direction A is different from a distance measured between two other necks 10 of adjacent resonators 6 of the network of resonators 6 aligned with the first two resonators 6.
- the network of resonators 6 comprises a first resonator 6a, a second resonator 6b and at least one third resonator 6c, the second resonator 6b being placed between the first resonator 6a and the third resonator 6c according to the flow direction of the air A.
- the first resonator 6a, the second resonator 6b and the third resonator 6c are aligned along the direction parallel to the direction of air flow A.
- a first distance Da measured between neck 10 of first resonator 6a and neck 10 of second resonator 6b is greater than a second distance ⁇ b measured between neck 10 of second resonator 6b and neck 10 of the third resonator 6c.
- first distance Da and the second distance ⁇ b are measured along the direction parallel to the airflow direction A from an identical point on each neck, for example the center thereof.
- the first distance Da corresponds to a value of approximately 9.55 millimeters while the second distance ⁇ b corresponds to a value of about 9.30 millimeters, a difference between the first and the second distance Da, ⁇ b being 0.25 millimeters.
- the variation between the first distance D a and the second distance ⁇ b is for example between 0.2 and 1.0 mm. Furthermore, this variation can be ordered in an increasing or decreasing manner, that is to say that the variation of the distance between the necks 10 tends to increase or decrease more or less significantly along the direction of air flow A, independently of the values given here by way of example.
- the variation between the first distance D a and the second distance ⁇ b is greater than the variation between the second distance ⁇ b and the distance measured between the neck 10 of the third resonator 6c and the neck 10 of a fourth resonator, the variation thus tending to decrease as one moves away from the first resonator 6a.
- the distance variation may tend to increase as one moves away from the first resonator 6a.
- a volume of the cavities 8 varies along the direction parallel to the air flow direction A.
- the volume of a cavity 8 of a first resonator 6a is different from a volume of a cavity 8 of another resonator aligning along the airflow direction A with the first resonator 6a.
- the volume of a cavity 8 of a first resonator 6a located downstream, according to the direction of displacement of the air along the direction of flow of the air A is greater than the volume of the cavity 8 of the second resonator.
- variation of the different volumes of the cavities 8 of the resonators 6 can vary in an increasing or decreasing manner, that is to say that the variation of the volumes of the cavities 8 between the resonators 6 tends to increase or decrease more or less along the air flow direction A as one moves away from the first resonator 6a.
- the volume of the cavity 8 of the first resonator 6a corresponds to a value of approximately three thousand four hundred and twenty (3420) mm3 while the volume of the cavity 8 of the second resonator 6b corresponds to a value of approximately three thousand three hundred seventy-five (3375) mm3, a difference between the volume of the cavity 8 of the first resonator 6a and the volume of the cavity 8 of the second resonator 6b being forty-five (45 ) mms.
- the variation in volume between the cavity 8 of the first resonator 6a and the cavity 8 of the second resonator 6b is for example between two hundred (200) and ten thousand (10000 ) mms.
- the volume of each cavity 8 of the network of resonators 6 is advantageously between two hundred (200) and ten thousand (10,000) mms.
- This range of volume values corresponds to the volume of cavity 8 necessary to allow at least partial absorption of the acoustic waves transported in the duct 2.
- the combination between the variation in the volumes of the cavities 8 and the variation in the distances between the necks 10 of the different resonators 6 promote the absorption of acoustic waves by increasing the range of values of the frequencies of the acoustic waves absorbed by the network of resonators 6.
- a diameter of a first neck is three and a half millimeters in diameter and a height, for example, of ten millimeters.
- the diameters of the necks 10 are, for example, between two and a half millimeters to twenty millimeters.
- the height of the collars is, for example, between one millimeter and twenty-five millimeters.
- At least one dimension of the cavity 8 of the first resonator 6a is larger than one dimension of the cavity 8 of the second resonator 6b.
- dimension is understood a distance measured along a direction parallel to the longitudinal direction L or to the transverse direction T or to the vertical direction V between two points of the cavity 8, this distance being used to calculate the volume of the cavity 8.
- the dimension is a thickness measured parallel to the longitudinal direction L and to the air flow direction A.
- two or more dimensions of the cavity 8 of the first resonator 6a can be larger than these same dimensions of the cavity 8 of the second resonator 6b without departing from the scope of the invention. As illustrated in FIG.
- At least one cavity 8 of the network of resonators 6 has a rectangular section.
- all of the resonators 6 of the network of resonators 6 extend in a globally parallelepiped shape, presenting at least two longitudinal faces 16 extending parallel to the longitudinal L and transverse T directions, two transverse faces 18 extending parallel to the transverse T and vertical V directions and two vertical faces 20 extending parallel to the vertical V and longitudinal L directions. It is understood that the resonators 6 are aligned one after the other along the flow direction of the air A so that at least one of the transverse faces 18 of each cavity 8 of the network of resonators 6 faces another transverse face 18 of a cavity 8 of an immediately adjacent resonator 6.
- the array of resonators 6 comprises at least one row of substantially similar resonators 6 extending along a direction perpendicular to the direction of air flow A.
- this row of resonators 6 extends along the transverse direction T or along the vertical direction V.
- the network of resonators 6 comprises a transverse row 22 of resonators 6 extending along the along the transverse direction T, and a vertical row 24 of resonators 6 extending along the vertical direction V.
- the resonators 6 of the transverse row 22 are arranged so that at least one vertical face 20 of each cavity 8 of these resonators 6 faces another vertical face 20 of a cavity 8 of a resonator of the transverse row 22.
- the resonators 6 of the vertical row 24 are arranged so that at least one longitudinal face 16d e each cavity 8 of these resonators 6 faces another longitudinal face 16 of a cavity 8 of a resonator of the transverse row 22.
- the network of resonators 6 is organized in the form of a matrix comprising at least two rows of resonators 6, and where the resonators 6 of the at least two rows are respectively aligned along the direction of air flow A.
- the network of resonators 6 comprises at least two transverse rows 22 and/or two vertical rows 24 as described above.
- each cavity 8 of resonator 6 comprises at least one longitudinal face 18 facing a longitudinal face 18 of a cavity 8 of another resonator 6, and at least one vertical face 20 or a longitudinal face 16 facing respectively a vertical face 20 or a longitudinal face 16 of a cavity 8 of another resonator 6.
- the network of resonators 6 comprises at least eight transverse rows 22 and at least eight vertical rows 24.
- the longitudinal walls 14a of the acoustic attenuation system 4 each comprise eight transverse rows 22 of resonators 6 and the vertical walls 14b of the acoustic attenuation system 4 each comprise eight vertical rows 24 of resonators 6, each of the transverse rows 22 comprising thirteen resonators 6 and each of the vertical rows 24 comprising two resonators 6.
- the acoustic attenuation system 4 therefore comprises here two hundred and forty resonators 6 organized in the form of a matrix around the duct 2.
- the total number of resonators 6 composing the acoustic attenuation system 4 can vary in order to adapt the range of acoustic wave frequency values to be attenuated.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Duct Arrangements (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2103707 | 2021-04-12 | ||
| PCT/EP2022/059796 WO2022219001A1 (fr) | 2021-04-12 | 2022-04-12 | Dispositif de ventilation d'une installation de ventilation, chauffage et/ou climatisation d'un vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4323214A1 true EP4323214A1 (fr) | 2024-02-21 |
Family
ID=75954091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22722712.1A Pending EP4323214A1 (fr) | 2021-04-12 | 2022-04-12 | Dispositif de ventilation d'une installation de ventilation, chauffage et/ou climatisation d'un vehicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12583284B2 (fr) |
| EP (1) | EP4323214A1 (fr) |
| CN (1) | CN117177869A (fr) |
| WO (1) | WO2022219001A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3140149A1 (fr) * | 2022-09-22 | 2024-03-29 | Valeo Systemes Thermiques | Dispositif de traitement acoustique pour un système de ventilation. |
| FR3156579A1 (fr) * | 2023-12-08 | 2025-06-13 | Valeo Systemes Thermiques | Dispositif d’atténuation acoustique |
| FR3160735A1 (fr) * | 2024-03-26 | 2025-10-03 | Valeo Systemes Thermiques | Dispositif d’atténuation acoustique |
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| CA1027002A (fr) * | 1974-08-30 | 1978-02-28 | Horst W.W. Hehmann | Suppresseur de bruit a traitement phase pour les gaines acoustiques |
| US4106587A (en) * | 1976-07-02 | 1978-08-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sound-suppressing structure with thermal relief |
| US6116375A (en) * | 1995-11-16 | 2000-09-12 | Lorch; Frederick A. | Acoustic resonator |
| CA2164370A1 (fr) * | 1995-12-04 | 1997-06-05 | Donald L. Allen | Attenuateur acoustique reactif |
| JP2006337886A (ja) | 2005-06-06 | 2006-12-14 | Inoac Corp | 吸音材 |
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| EP2623732A1 (fr) * | 2012-02-02 | 2013-08-07 | Siemens Aktiengesellschaft | Installation et procédé destinés à amortir des vibrations acoustiques dans une installation associée |
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| CN104836473B (zh) * | 2014-02-07 | 2018-11-02 | 北京纳米能源与系统研究所 | 采集声音能量的发电机和声音传感器 |
| DE202014007986U1 (de) * | 2014-10-01 | 2016-01-05 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Schalldämpfer |
| US9376946B1 (en) * | 2015-04-02 | 2016-06-28 | Fisher Controls International Llc | Modal attenuator |
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| US11204204B2 (en) * | 2019-03-08 | 2021-12-21 | Toyota Motor Engineering & Manufacturing North America, Inc. | Acoustic absorber with integrated heat sink |
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| FR3140936A1 (fr) * | 2022-10-12 | 2024-04-19 | Valeo Systemes Thermiques | Dispositif de traitement acoustique pour système de ventilation |
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2022
- 2022-04-12 US US18/555,034 patent/US12583284B2/en active Active
- 2022-04-12 WO PCT/EP2022/059796 patent/WO2022219001A1/fr not_active Ceased
- 2022-04-12 CN CN202280027724.8A patent/CN117177869A/zh active Pending
- 2022-04-12 EP EP22722712.1A patent/EP4323214A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US12583284B2 (en) | 2026-03-24 |
| CN117177869A (zh) | 2023-12-05 |
| WO2022219001A1 (fr) | 2022-10-20 |
| US20240190205A1 (en) | 2024-06-13 |
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