• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An air intake system (12) for a vehicle equipped with a motor (16) includes a housing (18), a filter (26) and an acoustic resonator (30). The housing (18) includes a first housing member (20), a second housing member (22), and an AF airflow path passing through the housing (18). The filter (26) is housed in the housing (18) and positioned in the air flow path AF to remove debris from the sucked air. The acoustic resonator (30) is integrally formed with the first housing member (20) and is capable of reducing the noise generated by the motor (16).
    公开号:FR3027067A1
    申请号:FR1559600
    申请日:2015-10-09
    公开日:2016-04-15
    发明作者:Michael Desjardins
    申请人:Mann and Hummel GmbH；
    IPC主号:
    专利说明:

    [0001] FIELD OF THE INVENTION The present invention generally relates to air intake systems for vehicles. The present invention more particularly relates to an air filter assembly for an intake system of a vehicle having an integrated acoustic resonator. More particularly, the present invention relates to a cover of an air filter housing in which is integrated a resonator. BACKGROUND OF THE INVENTION Air intake systems are used in automobiles and other motor vehicles to transport air from the environment to the engine to allow combustion. An air intake system conventionally comprises a housing for housing a filter. This filter works to remove dust and other particles that can be drawn into the intake air. When the air circulates in the air intake system and the engine noise and vibration from the engine can be transmitted and amplified by the passages formed in the intake system. To reduce the volume of these noises, it is desirable to use an acoustic resonator that vibrates at a frequency equal to and opposite to that produced by the engine and thus generates sound waves that eliminate the sound waves produced by the engine. The resonator is usually mounted on the upstream side of the filter housing. Known resonators have proved globally acceptable to fulfill the function assigned to them, but a need remains to propose such resonators. SUMMARY OF THE INVENTION In a particular aspect, the present invention relates to an air intake system for a motor vehicle. This air intake system comprises a housing, a filter and an acoustic resonator. The housing includes a first housing member, a second housing member, and an air flow path passing through the housing. The filter is mounted in the housing and positioned in the airflow path to remove debris from the intake air. The acoustic resonator is integrally formed with the first housing element and is able to reduce the noise generated by the motor. According to another particular aspect, the invention proposes an air intake system for a vehicle equipped with a motor. This air intake system comprises an air filter housing, a filter and an acoustic resonator. The air filter housing includes a base member and a cover member. The cover member is removably attached to the base member. The filter is housed in a housing chamber and is positioned in an air flow path extending through the housing. The filter is likely to remove debris from the intake air. The acoustic resonator is integrally formed with the housing and is able to reduce the noise generated by the motor. In another particular aspect, the present invention is directed to an air filter assembly. This air filter assembly includes a housing, a filter and an acoustic resonator. The housing comprises a first housing element. The filter is mounted in the housing and is able to filter the sucked air passing through the housing. The acoustic resonator is integrally formed with the first housing member and is capable of attenuating sounds passing along an air flow path through the air filter housing. BRIEF DESCRIPTION OF THE FIGURES The characteristics of the air intake system and the air filter assembly which are the subject of the invention will be described in greater detail with reference to the appended non-limiting drawings in which: Figure 1 is a perspective view of an air filter housing of an air intake system constructed in accordance with the invention and enclosing a first housing member in which an acoustic resonator is integrated; FIG. 2 is a sectional view of a portion of the air filter housing according to the invention; FIG. 3 is a front perspective view of the first housing element of the air filter housing shown in FIG. 1, 3027067 3 - Figure 4 is a rear view of the first housing element shown in Figure 3, - Figure 5 is a simplified view of an air intake system comprising an air filter housing according to the operative invention FIG. 6 is a sectional view, similar to FIG. 2, of another housing element for an air filter housing comprising an integrated resonator according to the invention; FIG. Fig. 4 is a rear view according to Fig. 4 illustrating the first housing member according to claim 5. Similar elements are represented by the same references in all figures. DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION Singular terms such as "a" "le" ... also refer to plural forms unless the context clearly specifies otherwise. The terms "includes", "encloses", ... are open terms and therefore non-limiting. The process steps described need not be carried out in the order described or illustrated unless specified. It should also be understood that additional or alternative steps can also be implemented. When an element is described as being "on", "connected to", "connected to", "coupled to", ... to another element, the presence of intermediate elements is not excluded. On the contrary, when an element is described as being "directly on", "directly connected to", "directly connected to", "directly coupled to", ... another element, the presence of elements intermediaries is excluded. Terms relating to spatial positions such as "inside", "outside", "below", "below", "on", "above", etc. are used in order to facilitate the description of the position of an element relative to other elements shown in the figures, without having any limiting character. According to FIGS. 1 to 5, an air filter assembly according to the invention is designated by reference numeral 10. This air filter assembly 10 is incorporated in an air intake system 12 (Fig. 3027067 4 5) and is used to allow the transport of ambient air between a suction port 14 and a motor 16 (not shown) or other device using a flow of air. The engine 16 may for example be a vehicle engine. The air filter assembly 10 thus filters air circulating along an airflow path AF. As will be described in more detail below, the air filter assembly 10 is also used to intervene on the noises produced by the motor 16. By way of example, the air filter assembly 10 is used to to produce sound waves for suppressing or tuning differently the sound waves produced by the engine. The air filter assembly 10 generally comprises a housing 18 having a first housing member 20 and a second housing member 22. The first and second housing members 20 and 22 may be made of plastic or other material adapted.
    [0002] According to the embodiment shown, the first and second housing members 20 and 22 are injection molded. The first and second housing members 20 and 22 cooperate to define a housing chamber 24 in which a filter 26 is housed. According to the particular embodiment shown, the first housing member is a first cover member 20 and the second housing member is a second cover member 22. The first cover member 20 defines a first chamber portion 24A of the chamber 24 and the second cover member 22 defines a second chamber portion 24B of the chamber 24. The filter 26 is housed at least partially in the second chamber portion 24B. The first cover member 20 is removably attached to the second cover member 22 to facilitate removal and replacement of the filter 26. As shown in Fig. 1, the first cover member 20 is attached to the second cover member 22. by pawls 28. An airtight seal is formed between the first and second cover members 20 and 22 in a conventional manner. The filter 26 is mounted in the first cover member 20 and, in a conventional manner, removes debris present in the sucked-up air 14 while this sucked air 14 is circulating along the air flow path AF From the environment to the engine 16. According to the embodiment shown, the filter 26 is a pleated filter having a fouled side 26A and a clean side 26B. However other types of filters can also be used in the context of the invention. The air filter assembly 10 further includes a resonator 30 to enable suppressing or at least reducing the noise generated by the motor 16. The resonator 30 is formed integrally with one of the cover members 20, 22 so as to obtain an integrated component. Preferably, the resonator 30 is at least partially formed at the inner portion of the first or second cover members 20, 22 so as to reduce the necessary implantation volume for the air filter and the resonator by installing at least a portion of the resonator 30 and the resonator volume 38 in the housing chamber 24 inside the housing 18. An expansion space 60 is provided at the open end of the resonator volume or the resonator chamber 38 between the inner wall 32 and the free end of the outer wall 34 for coupling the resonator chamber 38 to the flow of air flowing in the passage 40. According to the embodiment described and shown, the resonator 30 is formed integrally with the first cover member 20. According to a particular application, the first cover member 20 is injection molded to enclose the resonator 30 according to a monolithic assembly. As shown, the resonator 30 is constructed to have an inner wall 32 and an outer wall 34. The inner and outer walls 30 and 32 are connected by an end wall 36 to form a volume. annular resonator or an annular resonator chamber 38 between the inner and outer walls 30 and 32. The resonator chamber 38 has a U-shaped cross-section. The outer wall 34 of the resonator extends from the inner portion. the housing chamber 24 through the outer wall of the housing 18 to form a connection location for fixing a pipe 37 at the free end of the outer wall 34 of the resonator 30, outside the first and the second cover members 20 and 22 of the casing 18. The duct 37 may be conventionally attached to the free end of the outer wall 34. The end wall 39 of the first casing element 20 extends substantially radially from the outer wall 34 of the resonator 30 such that a first portion 30A of the resonator 30 extends into the first chamber portion 24A and a second portion 30B of the resonator 30 extends from the remaining portion of the first cover member 20 and outside the first chamber portion 24A. The inner wall 32 and the outer wall 34 are substantially cylindrical in shape and are concentrically connected by the end wall 36. As a result, the end wall 36 is annular. However, the inner wall 32 and the outer wall 34 may have other geometries without departing from the scope of the invention. The outer wall 34 extends along a length L 1 in the axial direction from the end wall 36 and defines an inner diameter D 1. The inner wall 32 extends along a length L 2 in the axial direction from the end wall 36 and defines an internal diameter D2. The ratio of L 1 to L 2 is between approximately 4: 1 and 1: 1. The ratio of D 1 to D 2 is approximately between 4: 1 and 3: 2. According to Fig. 2, according to one embodiment, the ratio of L 1 to L 2 is 3: 2 and the ratio of D 1 to D 2 is 2: 1. According to a particular embodiment, the internal diameter D 1 of the outer wall 34 is equal to 135 mm, the inner diameter D 2 of the inner wall 32 is equal to 75 mm, the length L1 of the outer wall 34 is equal to at 158 mm and the length L2 of the inner wall 32 is equal to 145 mm.
    [0003] Figures 6 and 7 show and denote by reference 20 'another first housing element according to the invention. Given the similarities between the first housing member 20 and the first housing member 20 ', the same references have been used to denote similar elements. According to this particular embodiment, the ratio of L 1 to L 2 is approximately 5: 4. Reducing the ratio of L 1 to L 2 allows noises to enter the resonator 30 by minimizing the limiting level of the airflow flowing in the air intake system 12. The inner wall 32 is substantially parallel to the outer wall 34. The end wall 36 is substantially perpendicular to the inner wall 32 and the outer wall 34. Accordingly, the inner and outer walls 32 and 34 define a chamber 38 therebetween. that the inner wall 32 defines a passage 40 therethrough. The resonator 30 is constructed to be further equipped with a series of radially extending fins or ribs 42 and a mounting portion 44. The ribs 42 extend between, and connect to, their opposite ends on the inner wall 32, the outer wall 34 and connect to the end wall 36. In this way, the volume of the resonator or the resonator chamber 38 is divided into a series of small sub-chambers 38A . The sub-chambers of the resonator 38 have volumes chosen to make a chord, either at the same frequency or at different frequencies to create a broadband resonator for a wider high frequency band than could be achieved. obtain with a resonator not subdivided. The ribs 42 are shown to be substantially uniformly and symmetrically spaced around the resonator 30, but the ribs 42 could also be asymmetrically spaced without departing from the scope of the invention to create resonator chambers 38A of dimensions varied. According to one embodiment, the resonator 30 comprises six ribs 42 extending along a length L3 in the axial direction from the end wall 36. The length L3 is represented as being equal to the length L2, but the ribs 42 could also extend over a length less than L2 without departing from the scope of the invention. By varying the lengths L1, L2 and L3 and the spacing between the ribs 42, the volume of the resonator or the chamber 38 of the resonator and sub-chambers 38A of the resonator can vary without departing from the scope of the according to particular sound attenuation requirements. The mounting portion 44 is in the form of a recessed or cut portion of the outer wall 34 and the remaining portion of the first cover member 20. This mounting portion 44 is defined by parallel side walls. 46A, 46B and by an end wall 48 extending therebetween and connecting the inner wall 32 to the outer wall 34 and the remaining portion of the first cover member 20.
    [0004] The mode of operation of the air intake system 12 will be described in more detail below. According to FIG. 2, the sucked air 14 circulates essentially in a first direction through the filter 26, and the purified air circulates in the passage 40 and the pipe 37 to the motor 16. The waves and sound vibrations generated by the motor 16 move substantially in a second direction (opposite to the first direction) in the line 37 and the resonator 30. When the sound waves move in the resonator 30, they can be reflected and vibrate at the inner part of the resonator chamber 38 and / or sub-chambers of resonator 38A to create an acoustic pressure at the end of resonator 30 near end wall 36 and effectively reduce, suppress, or otherwise modify the volume of the sound waves generated by the motor 16. The volume of the resonator chamber 38 can be adjusted by varying the dimensions of the resonator 30, as described above in FIG. - answer the requirements of engine air flow 16. The present invention thus provides a resonator that can be integrated into the clean-side cover of an air intake system. The resonator uses the internal volume of a box of air which would otherwise be simply housed in the natural volume of the air box without constituting a tunable device. By using this volume in an acoustic device, the resonator can be modified to influence desired frequencies, if desired. The assembly according to the present invention can be incorporated in existing components by a simple addition of material. In this way, the number of components can remain low, which keeps the associated costs low. The volume of the resonator can be varied in different ways as described above. The invention makes it possible to satisfy stringent acoustic targets in a limited implantation volume.
    [0005] 35 3027067 9 NOMENCLATURE OF MAIN ELEMENTS 10 Air filter assembly 12 Air intake system 5 14 Suction port 16 Engine 18 Housing 20 First housing element 20 'First housing element 10 22 Second housing element 24 Chamber case 24A Chamber part 24B Chamber part 26 Filter 15 26A Dirt side 26B Clean side 28 Pawls 30 Resonator 30A Part of resonator 20 30B Part 2 of resonator 32 Inner wall 34 Outer wall 36 End wall 37 Conduct 25 38 Resonator volume 38A Resonator sub-chamber 39 End wall Transition 42 Ribbing 30 44 Mounting part 46A, 46B Side walls 48 End wall 60 Expansion area AF Air circulation path 35 3027067 Dl, D2 Diameter Ll, L2, L3 Lengths 10 5
    权利要求:
    Claims (5)
    [0001]
    CLAIMS 1 °) Air intake system for a vehicle equipped with a motor, this air intake system (12) comprising: a housing (18) through which passes an air flow path AF, this housing (18) comprising a first housing element (20, 20 ') and a second housing element (22), a filter (26) housed in the housing (18) and positioned in the air flow path AF to eliminate debris in the sucked air, and an acoustic resonator (30) formed integrally with the first housing element (20, 20 '), this resonator (30) being able to reduce the noise generated by the motor (16), the acoustic resonator (30) being installed at least partially to the inner part of the housing (18).
    [0002]
    Air intake system according to claim 1, wherein the resonator (30) comprises an inner wall (32) defining a portion of the passage of the air flow path AF and an outer wall (34). parallel to the inner wall (32) and spaced therefrom.
    [0003]
    Air intake system according to claim 1, wherein the inner wall (32) is a cylinder and the outer wall (34) is a cylinder mounted concentrically around the inner wall (32) so as to forming an annular resonator chamber (38).
    [0004]
    An air intake system according to claim 1, wherein the inner wall (32) and the outer wall (34) define therebetween a resonator chamber (38) in fluid communication with the flow path AF air, this chamber (38) being capable of modifying the sound waves produced by the motor (16).
    [0005]
    Air intake system according to claim 3, wherein the resonator (30) further comprises a set of ribs (42) extending between the inner wall (32) and the outer wall (34). connecting them and dividing the resonator chamber (38) to a set of sub-chambers (38A). An air intake system according to claim 4, wherein the outer wall (34) has a first length L1 and the inner wall (32) has a second length L2, the first length L1 being greater than at the second length L2 so as to form an expansion chamber (60) 5 at the free end of the inner wall (32), this expansion chamber (60) coupling the resonator chamber (38) to the circulation path Air AF. An air intake system according to claim 5, wherein the inner wall (32) and the outer wall (34) of the resonator (30) extend axially in a chamber (24) defined by the housing (18). An air intake system for a vehicle equipped with a motor, said air intake system (12) comprising: an air filter housing (18) comprising a base member and an elem cover member removably attached to the base member, a filter (26) located in a chamber of the housing (24) and positioned in an air flow path AF extending through the housing (18) this filter (26) being able to remove debris present in the sucked air, and an acoustic resonator (30) formed integrally with the housing (18) and capable of reducing the noise generated by the engine, this acoustic resonator (30) being at least partially installed at the inner portion of the housing (18). An air intake system according to claim 8, wherein the resonator (30) is integrally formed with the cover member. An air intake system according to claim 8, wherein the resonator (30) defines an axially extending channel (40) forming a portion of the air flow path AF and a chamber resonator (38) extending peripherally around the axially extending channel (40) and in fluid communication with the air flow path AF. An air intake system according to claim 8, wherein the axially extending channel (40) and the resonator chamber (38) extend at least partially into the chamber of the housing (24). ). An air intake system according to claim 10, wherein the resonator chamber (38) is subdivided into a set of sub-chambers (38A). An air intake system according to claim 10, wherein the resonator (30) comprises a cylindrical inner wall (32) defining the axially extending chamber and an outer wall (34) cooperating with the wall internal (32) cylindrical to define the resonator chamber (38). An air intake system according to claim 13, wherein the outer wall (34) has a first length L 1 and the inner wall (32) has a second length L 2, the first length L 1 being greater than at the second length L2 so as to form an expansion chamber (60) at the free end of the inner wall (32), this expansion chamber (60) coupling the resonator chamber (38) to the circuit path AF air flow. 15. An air filter assembly comprising: a housing (18) including a first housing member (20, 20 '), a filter (26) housed in the housing (18) and capable of filtering the sucked air passing through through the housing (18), and an acoustic resonator (30) formed integrally with the first housing element (20, 20 ') and capable of attenuating the noise passing along an air flow path AF at the through the air filter housing (18). An air filter assembly according to claim 15, wherein the resonator (30) comprises: an annular end wall (36), an inner wall (32) extending axially from the wall; end (36) to a first end, and an outer wall (34) surrounding the inner wall (32) and extending axially from the end wall (36) to a second end, the second end being axially offset by relative to the first end of the inner wall (32). An air filter assembly according to claim 15, wherein the housing (18) further comprises a second housing member (22), the first housing member (20, 20 ') being removably attached at the second housing member (22). Air filter assembly according to claim 17, wherein the first housing member (20, 20 ') defines the housing cover. An air filter assembly according to claim 18, wherein the filter comprises a clean side and a dirty side, the cover being located close to the clean side. An air filter assembly according to claim 15, wherein the resonator (30) defines an axially extending channel (40) forming a portion of the air flow path AF and a resonator chamber (38). ) extending peripherally around the axially extending channel (40) and in fluid communication with the air flow path AF.
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    同族专利:
    公开号 | 公开日
    US9534570B2|2017-01-03|
    US20160102637A1|2016-04-14|
    CN105673277B|2020-02-14|
    FR3027067B1|2019-03-15|
    CN105673277A|2016-06-15|
    DE102015012645A1|2016-04-14|
    引用文献:
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    法律状态:
    2016-10-20| PLFP| Fee payment|Year of fee payment: 2 |
    2017-10-24| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-23| PLSC| Publication of the preliminary search report|Effective date: 20180223 |
    2018-10-22| PLFP| Fee payment|Year of fee payment: 4 |
    2019-10-28| PLFP| Fee payment|Year of fee payment: 5 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 6 |
    2021-10-21| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    US14/511,336|US9534570B2|2014-10-10|2014-10-10|Air cleaner assembly with integrated acoustic resonator|
    US14511336|2014-10-10|
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