WO2013161609A1 - Silencieux pour automobile - Google Patents

Silencieux pour automobile Download PDF

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Publication number
WO2013161609A1
WO2013161609A1 PCT/JP2013/061189 JP2013061189W WO2013161609A1 WO 2013161609 A1 WO2013161609 A1 WO 2013161609A1 JP 2013061189 W JP2013061189 W JP 2013061189W WO 2013161609 A1 WO2013161609 A1 WO 2013161609A1
Authority
WO
WIPO (PCT)
Prior art keywords
cordierite
plates
muffler
holes
automobile
Prior art date
Application number
PCT/JP2013/061189
Other languages
English (en)
Japanese (ja)
Inventor
深山　信亜
Original Assignee
株式会社三和製作所
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
Application filed by 株式会社三和製作所 filed Critical 株式会社三和製作所
Priority to CN201380021105.9A priority Critical patent/CN104246155B/zh
Publication of WO2013161609A1 publication Critical patent/WO2013161609A1/fr
Priority to HK15100763.8A priority patent/HK1200515A1/xx

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/037—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/038—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of perforated plates defining expansion chambers associated with condensation and collection chambers, e.g. for adiabatic expansion of gases and subsequent collection of condensed liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/08—Two or more expansion chambers in series separated by apertured walls only
    • 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 automobile muffler that removes harmful components such as odor-causing substances and particulate matter contained in exhaust gas from diesel vehicles and the like.
  • Japanese Patent No. 4571653 describes an automobile muffler that uses a porous plate made of pulverized garnet (perlite) and an inorganic binder.
  • the plate material itself is porous, and a plurality of through-holes are formed in the plate material, and a plurality of plate materials in which the through-holes are formed are arranged at intervals inside the cylindrical body. This is described in Japanese Patent No. 4571653.
  • Japanese Patent Application Laid-Open No. 2009-256198 describes a method for producing a cordierite molded body used as a catalyst carrier for an automobile muffler.
  • the molded body is a honeycomb structure having cell walls arranged in a honeycomb shape and a large number of cells partitioned in the cell walls.
  • porous plate material made of garnet and inorganic binder described in the above-mentioned Japanese Patent No. 4571653 exhibits good performance at the beginning of the use of the muffler.
  • the interior of the plate is a space with minute holes, solid particles accumulate inside it as it continues to be used, causing the exhaust system to become clogged and causing engine performance. There is a problem that it decreases.
  • honeycomb structure described in Japanese Patent Application Laid-Open No. 2009-256198 makes the cell wall thinner in accordance with demands such as weight reduction and low pressure loss, but this causes a problem that the strength of the honeycomb structure decreases. There is.
  • An object of the present invention is to realize an automobile muffler capable of removing harmful components such as solid particles without causing clogging or lowering of engine output.
  • a plurality of cordierite plates fired into a disk shape having a plurality of through-holes are arranged in parallel with each other, and combustion exhaust gas is sequentially disposed on these cordierite plates.
  • An automobile muffler characterized by being allowed to pass through.
  • the cordierite plate according to the present invention has a stepped portion protruding in the thickness direction on the periphery and inside, and the cordierite plates contact each other at the stepped portion so that there is a gap between the cordierite plates. It can be set as the structure formed.
  • the plurality of cordierite plates may be stacked such that the through holes of adjacent cordierite plates are shifted in the circumferential direction so that the through holes do not face each other.
  • the present invention may be configured such that a perforated plate coated with a catalyst is disposed on at least one of the upstream side and the downstream side of the plurality of cordierite plates.
  • FIG. 1 is a front view of a car muffler according to the present invention, with a part thereof broken away.
  • the exhaust gas from the engine enters the muffler from the left side of the figure.
  • the muffler includes a head portion 11, an intermediate portion 12, and a rear portion 13.
  • the intermediate portion 12 as a main body portion is cylindrical, and a plurality of cordierite plates 2 are inserted into the cylindrical intermediate portion 12 in an overlapping manner. . That is, the cordierite plates 2 are arranged in parallel to each other. Further, on the downstream side of the cordierite plate 2 in the intermediate portion 12, a perforated plate 3 having a surface coated with a catalyst is disposed.
  • Cordierite is a ceramic represented by 2MgO ⁇ 2Al 2 O 3 ⁇ 5SiO 2 and has a thermal expansion coefficient as low as about half that of general porcelain, excellent thermal shock resistance, and high mechanical strength. As described in Japanese Patent Application Laid-Open No. 2009-256198, it is formed into a honeycomb structure and used as a carrier for a catalyst. Is used as an adsorbent or filter for solid particles (PM).
  • FIG. 2 is a perspective view showing an example of the cordierite plate 2.
  • the cordierite plate 2 is obtained by adding silica as a binder to cordierite particles as a main material and firing it into a disk shape. Stepped portions 21 and 22 projecting in the thickness direction are formed at the periphery and the center. In addition, a plurality of through holes 23 are provided in the disk-shaped portion. The peripheral and central stepped portions 21 and 22 are provided such that when the cordierite plates 2 are overlapped, a gap corresponding to the level difference is generated between the cordierite plates 2.
  • the cordierite fired body is a porous body, but if this is used as a filter as it is, the back pressure acting on the engine increases and the output decreases, so that the cordierite plate 2 of the present invention can pass exhaust gas.
  • the engine efficiency is not impaired by providing a plurality of through holes 23 having an appropriate size.
  • FIG. 3 is an explanatory view for explaining the PM adsorption action of the cordierite plate 2 of the present invention.
  • a plurality of cordierite plates 2a, 2b, and 2c arranged in a stacked manner have gaps (there is a gap) due to the stepped portions 21 and 22 between the peripheral edge and the central portion. Are superposed so that their positions are shifted in the circumferential direction so that the adjacent cordierite plates 2 do not face each other.
  • the exhaust gas that has passed through the through-hole 23 of the cordierite plate 2a once collides with the disk portion because the position of the through-hole of the next cordierite plate 2b is shifted, and after it becomes turbulent, the next cordierite plate 2b Pass through.
  • the exhaust gas that has passed through the cordierite plate 2 is discharged from the rear portion 13 of the muffler after NOx is removed by the catalyst applied to the surface of the perforated plate 3 provided further downstream.
  • the perforated plate 3 may be provided on the upstream side of the cordierite plate 2, and may further be disposed on the front and rear surfaces of the cordierite plate 2.
  • the cordierite plate 2 has a diameter of 200 mm or 300 mm, a peripheral edge thickness of 30 mm, a step of 10 mm, and a through hole 23 of 13 mm in diameter.
  • a small one that is assumed to be used for a truck having a loading capacity of 2 tons has a length of 370 mm in the intermediate portion 12, a diameter of 200 mm, and six cordierite plates 2.
  • the length of the intermediate portion 12 is 540 mm
  • the diameter is 240 mm
  • the cordierite plates 2 are also six pieces.
  • the intermediate portion 12 has a length of 830 mm, a diameter of 300 mm, and eight cordierite plates 2.
  • a pressure air blowing port at the top of the head 11 and the rear 13 of the muffler and a PM discharge port at the bottom.
  • the PM emission amount was 0.386 g / kWh, which cleared the regulation value of PM emission amount “0.490 g / kWh or less” by the Ministry of Land, Infrastructure, Transport and Tourism of Japan.
  • the NOx emission amount is suppressed to 5.54 g / kWh as a result of arranging the above-described perforated plates on both the upstream side and the downstream side, and this is also regulated by the Ministry of Land, Infrastructure, Transport and Tourism's NOx emission regulation value “5”. .90g / kWh or less ”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Catalysts (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

L'objectif de la présente invention est de réaliser un silencieux pour automobile qui est susceptible d'éliminer des composants nocifs tels que des particules solides sans provoquer de colmatage ou de diminution de puissance du moteur. Plusieurs plaques en cordiérite frittées (2) pourvues de plusieurs orifices traversants (23) sont empilées au sein d'un boîtier cylindrique, avec des intervalles entre les plaques et avec les positions de leurs orifices traversants respectifs (23) décalées les unes par rapport aux autres, et un gaz d'échappement passe à travers les multiples plaques en cordiérite (2) successivement tout en produisant un écoulement turbulent. La présente invention réalise un excellent effet en ce que des composants nocifs tels que des particules solides peuvent être éliminés sans diminuer la performance du moteur d'automobile.
PCT/JP2013/061189 2012-04-23 2013-04-15 Silencieux pour automobile WO2013161609A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201380021105.9A CN104246155B (zh) 2012-04-23 2013-04-15 机动车用***
HK15100763.8A HK1200515A1 (en) 2012-04-23 2015-01-23 Muffler for automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012097338A JP5968038B2 (ja) 2012-04-23 2012-04-23 自動車用マフラ
JP2012-097338 2012-04-23

Publications (1)

Publication Number Publication Date
WO2013161609A1 true WO2013161609A1 (fr) 2013-10-31

Family

ID=49482933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/061189 WO2013161609A1 (fr) 2012-04-23 2013-04-15 Silencieux pour automobile

Country Status (4)

Country Link
JP (1) JP5968038B2 (fr)
CN (1) CN104246155B (fr)
HK (1) HK1200515A1 (fr)
WO (1) WO2013161609A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104916278B (zh) * 2015-06-01 2018-12-21 珠海华信净化设备有限公司 一种用于吸附式干燥器的***
CN105649717B (zh) * 2016-01-25 2019-02-12 山西振华创新科技有限公司 汽车尾气净化器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610649A (ja) * 1992-06-26 1994-01-18 Mitsui Toatsu Chem Inc 排ガス浄化用フィルター
JPH0749026A (ja) * 1991-09-04 1995-02-21 Gavoni Bgm Silenziatori Di Albino Gavoni & Co Sas 内燃機関の触媒コンバータに組み込まれたサイレンサ
JPH09125944A (ja) * 1995-11-08 1997-05-13 Toyota Motor Corp ディーゼル機関の排気浄化方法及び装置
JPH11303623A (ja) * 1998-04-20 1999-11-02 Suzuki Motor Corp 排気ガス浄化装置
JP2003214136A (ja) * 2002-01-25 2003-07-30 Hino Motors Ltd 排気浄化装置
JP4571653B2 (ja) * 2006-01-13 2010-10-27 株式会社三和製作所 自動車用マフラ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0783810B2 (ja) * 1987-12-01 1995-09-13 旭硝子株式会社 フィルタエレメント、フィルタ体及びフィルタ装置
CN88201252U (zh) * 1988-02-09 1988-08-17 李波 汽车排气净化***
JPH0586835A (ja) * 1991-09-27 1993-04-06 Ibiden Co Ltd 排気ガス浄化装置
KR101123173B1 (ko) * 2003-09-29 2012-03-19 히타치 긴조쿠 가부시키가이샤 세라믹 허니컴 필터 및 그 제조 방법
JP4340211B2 (ja) * 2004-10-04 2009-10-07 日本碍子株式会社 ディーゼルパティキュレートフィルター
CN101575204B (zh) * 2008-03-21 2013-03-20 株式会社电装 堇青石成形体和制备所述成形体的方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0749026A (ja) * 1991-09-04 1995-02-21 Gavoni Bgm Silenziatori Di Albino Gavoni & Co Sas 内燃機関の触媒コンバータに組み込まれたサイレンサ
JPH0610649A (ja) * 1992-06-26 1994-01-18 Mitsui Toatsu Chem Inc 排ガス浄化用フィルター
JPH09125944A (ja) * 1995-11-08 1997-05-13 Toyota Motor Corp ディーゼル機関の排気浄化方法及び装置
JPH11303623A (ja) * 1998-04-20 1999-11-02 Suzuki Motor Corp 排気ガス浄化装置
JP2003214136A (ja) * 2002-01-25 2003-07-30 Hino Motors Ltd 排気浄化装置
JP4571653B2 (ja) * 2006-01-13 2010-10-27 株式会社三和製作所 自動車用マフラ

Also Published As

Publication number Publication date
CN104246155B (zh) 2017-06-30
CN104246155A (zh) 2014-12-24
JP2013224624A (ja) 2013-10-31
JP5968038B2 (ja) 2016-08-10
HK1200515A1 (en) 2015-08-07

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