WO2017171316A2 - Dispositif de diminution de bruit pour véhicule - Google Patents

Dispositif de diminution de bruit pour véhicule Download PDF

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Publication number
WO2017171316A2
WO2017171316A2 PCT/KR2017/003217 KR2017003217W WO2017171316A2 WO 2017171316 A2 WO2017171316 A2 WO 2017171316A2 KR 2017003217 W KR2017003217 W KR 2017003217W WO 2017171316 A2 WO2017171316 A2 WO 2017171316A2
Authority
WO
WIPO (PCT)
Prior art keywords
turbocharger
resonance chamber
exterior
inner tube
baffle
Prior art date
Application number
PCT/KR2017/003217
Other languages
English (en)
Korean (ko)
Other versions
WO2017171316A3 (fr
Inventor
황호준
조광익
이정욱
Original Assignee
엘에스엠트론 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160076335A external-priority patent/KR102594139B1/ko
Application filed by 엘에스엠트론 주식회사 filed Critical 엘에스엠트론 주식회사
Priority to EP17775741.6A priority Critical patent/EP3438443B1/fr
Priority to CN201780020866.0A priority patent/CN108884796B/zh
Publication of WO2017171316A2 publication Critical patent/WO2017171316A2/fr
Publication of WO2017171316A3 publication Critical patent/WO2017171316A3/fr

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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

Definitions

  • the present invention relates to a noise reduction device for reducing movement noise of air, and more particularly, to a noise reduction device for a vehicle in which a plurality of resonance chambers are formed for efficiently tuning air of various frequencies.
  • an intake system of an automobile includes an air cleaner, a turbocharger, an inter-cooler, an air duct, and an engine manifolder.
  • the air introduced into the internal combustion engine by the system generates intake pulsations while repeating expansion and compression.
  • the intake pulsation phenomenon causes noise according to the change in the pressure of air, and in particular, the noise caused by the resonance of the air in the vehicle body or the interior space of the vehicle causes more noise.
  • a resonator in the form of a duct for attenuating or reducing a specific frequency of intake noise is disposed in the intake hose provided at the rear end of the turbocharger.
  • the duct type resonator according to the prior art has a problem in that the frequency tuning of the air cannot be performed over a wide band because the number and the area of the resonance chamber are limited within a certain range due to the practical constraints in the assembly process.
  • Korean Laid-Open Patent Publication No. 2015-0095435 discloses a vehicle resonator in which a partition wall extending in an outer vertical direction from an outer surface of an inner pipe is formed and the resonance chamber is divided into a plurality of partitions.
  • the resonator 1 has an outer pipe 2 forming an outer shape, an inner pipe 15 inserted into the outer pipe, the outer pipe 2 and the inner pipe 15.
  • Resonance chamber 17 formed in between and the partition wall 5 which divides the said resonance chamber 17 into a plurality is included.
  • the plurality of resonance chambers 17 communicate with a plurality of slits 16 formed in the inner pipe 15, respectively.
  • the slit 16 serves as a passage for guiding the air moving from the inlet 2 to the outlet 3 to the resonance chamber 17.
  • the outer pipe 10 has a reduced appearance 13 extending in parallel with the direction of movement of air, one side is coupled to the reduced appearance 13 and the outside of the inner pipe 15
  • the bending appearance 12 extending in the direction and one side is composed of an expansion appearance 11 coupled to the bending appearance 12 and extending in the same direction as the reduced appearance 13. That is, the outer pipe 10 should be provided with a bent portion for forming the resonance chamber 17, such as the bent appearance 12.
  • the area of the resonance chamber 17 is limited within a certain range by various design conditions such as the positional relationship between each pipe and the relationship with the surrounding structure, the problem of significantly reducing the noise reduction performance not belonging to a specific frequency is significantly reduced. there was.
  • the present invention was developed to solve the limitations and problems of the prior art as described above, specifically, it is possible to secure a large area of the resonant room even if the size of the resonator is not widened, thereby improving the space utilization efficiency, thereby reducing noise of various frequencies. It is an object of the present invention to provide a vehicle noise reduction device that can be reduced.
  • the present invention is a turbocharger is inserted into the external appearance of the outer appearance, the turbocharger for charging the air therein and the outer surface is in contact with the inner surface of the outer appearance and extends to the inside of the outer appearance. It provides a noise reduction device for a vehicle comprising a charger connection tube, an inner tube which is located inside the exterior and integrally manufactured with the turbocharger connection portion, and a baffle that divides the resonance chamber formed between the exterior and the inner tube.
  • a resonance chamber for directly reducing the intake noise of the air is formed by inserting the turbocharger connection pipe directly into the outer appearance of the noise reduction device, which has the advantage that the area of the resonance chamber can be secured as wide as possible. have.
  • the baffle can be easily coupled to the inner surface of the exterior by welding, press-fitting, fitting, or bracing, so that the resonance chamber can be distinguished, thus simplifying the assembly process of the noise reduction device and thus the assembly work of the noise reduction device. There is an advantage that can be made efficiently.
  • FIG. 1 is a cross-sectional view showing the internal structure of a resonator according to the prior art.
  • FIG. 2 is a view schematically showing an intake system of a vehicle.
  • FIG. 3 is a cross-sectional view taken along the line II ′ of FIG. 2, and is a perspective view illustrating a structure of a noise reduction device in a state where a turbocharger and a resonator are disassembled according to an embodiment of the present disclosure.
  • FIG. 4 is a cross-sectional view showing the internal structure of the noise reduction device in a state where the turbocharger and the resonator are disassembled.
  • FIG. 5 is an enlarged view of portion X of FIG. 4.
  • FIG. 6 is a view showing a flow of air moving along the noise reduction device in a state where the turbocharger and the resonator are coupled.
  • FIG. 2 is a view schematically showing an intake system of a vehicle.
  • the intake system 20 of the vehicle is provided with a turbocharger 30 for supercharging the intake air supplied to the engine. Since the turbocharger 30 generates a wide range of intake noises that encompass low and high frequencies when driven, the driving noise of the driver decreases as a result of the operating noise generated by the turbocharger 30, thereby degrading the overall product quality of the vehicle. There was a problem. Therefore, a vehicle noise reduction device (reference numeral 100 of FIG. 3) is installed at the rear end of the turbocharger 30 to reduce such operation noise.
  • the intake system 20 includes an engine 25 for supplying power, an air cleaner 60 for filtering foreign substances from the intake air supplied from the engine 25, and an intake supercharged by the turbocharger 30. It includes an intercooler 40 for cooling the supply to the engine 25.
  • the noise reduction device 100 is installed between a connection member such as a hose, a steel pipe, or castings 51 and 52 connected to the intercooler 40 in order to reduce operating noise of the turbocharger 30. As a result, the noise generated when the air is inhaled is improved.
  • noise reduction device 100 will be described in detail.
  • FIG. 3 is a cross-sectional view taken along the line II ′ of FIG. 2, which is a perspective view illustrating a structure of a noise reduction device in a state where a turbocharger and a resonator are disassembled according to an embodiment of the present invention, and FIG. Sectional view showing the internal structure of the noise reduction device in the state.
  • the noise reduction device 100 is a turbocharger connecting pipe (200) forming an external appearance, a portion of which is inserted into the inner shear portion of the exterior (200) 300 and an inner tube 350 is inserted into the inner rear end portion of the exterior 200.
  • the turbocharger connection pipe 300 is a pipe in which the turbocharger 30 is inserted and fixed inside, and the inner pipe 350 is inserted into the exterior 200 to provide a space for moving the air.
  • the turbocharger connector 300 and the inner tube 350 are described separately, but the turbocharger connector 300 and the inner tube 350 are integrally manufactured. Let's find out.
  • turbocharger connector 300 may be a part of the turbocharger 30 for charging the air. That is, the distal portion of the turbocharger 30 may extend to the inner portion of the appearance 200. As another example, the turbocharger connector 300 may be a separate configuration coupled to the end of the turbocharger (30).
  • turbocharger connector 300 and the exterior 200 may be connected to each other by a connector 150.
  • a connector 150 For example, a predetermined hole is formed at a corresponding position in each of the turbocharger connector 300 and the exterior 200, and the connector 150 penetrates the holes in a twisted manner so that a combination of both configurations is achieved. Can be done.
  • a sealing material 305 having a predetermined elastic force is installed inside the turbocharger connection pipe 300.
  • the sealing member 305 may be installed between the turbocharger connector 300 and the turbocharger 30.
  • unexpected noise may occur in the noise reduction device 100.
  • the air flowing from the inlet port 101 to the outlet port 102 by the sealing member 305 is backflowed into the minute space between the turbocharger connecting pipe 300 and the turbocharger 30. It can be blocked in advance.
  • the inner tube 350 which is integrally manufactured with the turbocharger connection pipe 300, may be coupled to the intercooler 40 extending in the rear to cool the intake air.
  • the intercooler 40 may be disposed to surround an end of the exterior 200 and may be coupled to the exterior 200.
  • a resonance chamber 500 for reducing intake noise is formed in a space between the exterior 200 and the turbocharger connector 300 and a space between the exterior 200 and the inner tube 350.
  • a resonance chamber is formed in which an inner tube is coupled to a bent portion of an exterior of a noise reduction device to reduce movement noise of air.
  • the coupling structure of the outer tube and the inner tube is coupled to the turbocharger connecting tube or turbocharger for charging the air.
  • the size of the resonance chamber may be further expanded compared to the related art even if the size of the resonator is not increased.
  • the resonance chamber 500 is based on the moving direction of the air moving from the inlet 101 to the outlet 102, the first resonance chamber 510, the second resonance chamber 520 and the third resonance chamber 530.
  • the first resonance chamber 510 adjacent to the air inlet 101 is an expansion space formed between the turbocharger connecting pipe 300 and the exterior 200. (A) and a basic space B formed between the inner tube 350 and the outer tube 200.
  • the expansion space A and the basic space B are divided based on the extension line 302 which is a virtual line, but in reality, the first resonance chamber 510 is formed. It is an open space.
  • the inner tube is coupled to the bent portion of the exterior, so that the area of the first resonance chamber adjacent to the inlet 101 is limited to only the basic space portion.
  • the turbocharger connector 300 is inserted directly into the exterior 200, so that the first resonance chamber 510 is extended to the expansion space A in addition to the basic space B. Since it becomes wider, the noise of more various frequencies can be reduced efficiently.
  • the first resonance chamber 510 is formed not only by the inner tube 350 but also by the turbocharger connecting pipe 300 extending from the turbocharger 30, the size of the noise reduction device 100 is increased. There is an advantage that the area of the first resonance chamber 510 can be secured as wide as possible without increasing.
  • the resonance chamber 500 is provided with one or more baffles 400 for separating the space.
  • the baffle 400 includes a first baffle 410 installed in the front and a second baffle 420 installed in the rear with respect to the air movement path.
  • the first baffle 410 the outer surface is coupled to the inner surface of the outer surface 200, such as by welding, the first expansion portion 411 extending in the left and right directions, and one side of the first expansion portion 411 A first bent portion 442 coupled to the first bent portion 442 extending in an up and down direction, and a first shaft pipe portion coupled to one side of the first bent portion 412 and extending in a direction parallel to the first expanded portion 411 ( 413). That is, the first bent portion 412 is configured to partition the resonance chamber.
  • the first shaft pipe part 413 may be coupled to the inner tube 350 by welding or the like.
  • the second baffle 420 the outer surface is coupled to the inner surface of the outer surface 200 by welding or the like, and extending in the left and right directions, one side is the second expansion portion A second bent portion 422 coupled to the expansion pipe 421 and extending in the vertical direction, and one side is coupled to the second bent portion 422 and extends in a direction parallel to the second expansion pipe 421.
  • the second shaft portion 423 is configured.
  • the second bent portion 422 is configured to partition the resonance chamber.
  • the second shaft pipe part 423 may be coupled to the inner tube 350 by welding or the like.
  • the first resonance chamber 510 and the second resonance chamber 520 are partitioned by the first baffle 410 and the second resonance chamber 520 and the third resonance chamber 530. May be partitioned by the second baffle 420.
  • the first resonance chamber 510 is partitioned on one surface by the turbocharger connecting pipe 300 forming a part of the turbocharger 30, the first resonance chamber 510 may secure a wider space than in the related art.
  • the first resonance chamber 510 may communicate with a first slit 361 formed in the inner tube 350.
  • the second resonance chamber 520 may be in communication with the second slit 362 formed in the inner tube 350 and installed at the rear end of the first slit 361.
  • the third resonance chamber 530 may communicate with a gap 363 formed between the exterior 200 and the end of the inner tube 350.
  • the first slit 361 and the second slit 362 may be formed to have different widths.
  • the first slit 361 may be formed to have a relatively larger width than the second slit 362. This difference in slit width determines what frequency of air noise can be reduced.
  • the air flowing into the resonance chamber varies according to various factors such as the width of the slit, the volume of each resonance chamber, or the position of the baffle.
  • the first slit 361 and the second slit 362 are formed to have a different width, so that the frequency of the air to be tuned in each resonance chamber will be configured differently, according to the broadband frequency It is possible to attenuate the noise.
  • the interval 363 between the exterior 200 and the inner tube 350 is configured to be different from the widths of the first slit 361 and the second slit 362, thereby further reducing broadband frequency noise. It is also possible.
  • FIG. 6 is a view showing a flow of air moving along the noise reduction device in a state where the turbocharger and the resonator are coupled.
  • the turbocharger 30 is coupled to the turbocharger connector 300 in an assembly manner, and the sealing material 305 is connected to the turbocharger connector 300 and the turbocharger ( 30) Seal the space between.
  • the first resonance chamber 510 may be a resonance chamber for reducing noise by tuning air having a high frequency.
  • the first resonance chamber 510 is an expansion space A formed between the turbocharger connector 300 and the exterior 200, and a basic space formed between the inner tube 350 and the exterior 200. (B). That is, according to the prior art, the first resonance chamber is composed of only the basic space, but according to the present invention, since the expansion space is added in addition to the basic space, the space utilization efficiency is greatly improved by increasing the area of the resonance chamber. Can be.
  • the other part of the air introduced into the turbocharger connection pipe 300 passes through the second slit 362 and moves to the second resonance chamber 520.
  • the second resonance chamber 520 may be a resonance chamber that reduces noise by tuning air having a lower frequency than that of the first resonance chamber 510.
  • another portion of the air introduced into the turbocharger connecting pipe 300 passes through the gap 363 and moves to the third resonance chamber 530.
  • the third resonance chamber 530 may be a resonance chamber that reduces noise by tuning air having a lower frequency than that of the second resonance chamber 520.
  • the air introduced into the turbocharger connector 300 is moved to the first to third resonance chambers 510, 520, and 530 according to respective frequencies, and the first to third resonance chambers 510. Since tuning is performed according to the frequency of the air at 520 and 530, the intake air is discharged to the outside through the outlet 102 of the inner tube 350 in a state where the noise is reduced.
  • the frequency of the air flowing into the noise reduction device 100 has been described as being gradually lowered from the first resonance chamber 510 to the third resonance chamber 530, but is not limited thereto.
  • the second resonance chamber 520 and the third resonance chamber 530 are resonance chambers for tuning relatively high frequency air
  • the first resonance chamber 510 tunes relatively low frequency air. It can be a resonance room.
  • the noise reduction device 100 more elastically reduces the noise of the air flowing into the resonance room in accordance with conditions such as changes in the surrounding environment or the operating state of the vehicle. There is an advantage to this.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Pipe Accessories (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

La présente invention concerne un dispositif de réduction de bruit comprenant : un tuyau extérieur qui forme l'aspect externe ; un tuyau de raccordement de turbocompresseur dans lequel un turbocompresseur destiné à fournir de l'air est introduit, et dont la surface extérieure est accouplée au tuyau extérieur dans un état où elle est en contact avec la surface intérieure du tuyau extérieur, le tuyau de raccordement de turbocompresseur s'étendant jusqu'à l'intérieur du tuyau extérieur ; un tuyau intérieur qui est positionné à l'intérieur du tuyau extérieur et est fabriqué d'un seul tenant avec le tuyau de raccordement de turbocompresseur ; et un déflecteur qui sépare une chambre de résonance, qui est formée entre le tuyau extérieur et le tuyau intérieur, en une pluralité de parties.
PCT/KR2017/003217 2016-03-28 2017-03-24 Dispositif de diminution de bruit pour véhicule WO2017171316A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17775741.6A EP3438443B1 (fr) 2016-03-28 2017-03-24 Dispositif de diminution de bruit pour véhicule
CN201780020866.0A CN108884796B (zh) 2016-03-28 2017-03-24 车辆用降噪装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20160036987 2016-03-28
KR10-2016-0036987 2016-03-28
KR1020160076335A KR102594139B1 (ko) 2016-03-28 2016-06-20 차량용 소음저감 장치
KR10-2016-0076335 2016-06-20

Publications (2)

Publication Number Publication Date
WO2017171316A2 true WO2017171316A2 (fr) 2017-10-05
WO2017171316A3 WO2017171316A3 (fr) 2018-09-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107514325A (zh) * 2017-10-17 2017-12-26 天津大创科技有限公司 一种应用于汽车进气管道的降噪装置
CN107939567A (zh) * 2017-12-12 2018-04-20 沈阳航天三菱汽车发动机制造有限公司 一种汽车发动机涡轮增压消音器
CN113357060A (zh) * 2021-07-31 2021-09-07 扬州工业职业技术学院 一种汽车空气滤清器

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KR20150095435A (ko) 2014-02-13 2015-08-21 엘에스엠트론 주식회사 차량용 공명기

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KR20150095435A (ko) 2014-02-13 2015-08-21 엘에스엠트론 주식회사 차량용 공명기

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107514325A (zh) * 2017-10-17 2017-12-26 天津大创科技有限公司 一种应用于汽车进气管道的降噪装置
CN107514325B (zh) * 2017-10-17 2024-04-30 天津大创科技有限公司 一种应用于汽车进气管道的降噪装置
CN107939567A (zh) * 2017-12-12 2018-04-20 沈阳航天三菱汽车发动机制造有限公司 一种汽车发动机涡轮增压消音器
CN113357060A (zh) * 2021-07-31 2021-09-07 扬州工业职业技术学院 一种汽车空气滤清器
CN113357060B (zh) * 2021-07-31 2023-02-28 扬州工业职业技术学院 一种汽车空气滤清器

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