CN2092607U - Purifying and sound-absorbing devices for automobile - Google Patents

Purifying and sound-absorbing devices for automobile Download PDF

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Publication number
CN2092607U
CN2092607U CN 91208293 CN91208293U CN2092607U CN 2092607 U CN2092607 U CN 2092607U CN 91208293 CN91208293 CN 91208293 CN 91208293 U CN91208293 U CN 91208293U CN 2092607 U CN2092607 U CN 2092607U
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CN
China
Prior art keywords
wall
fixed
purifying
holes
insulation board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN 91208293
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Chinese (zh)
Inventor
陈惠春
于业清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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 Individual filed Critical Individual
Priority to CN 91208293 priority Critical patent/CN2092607U/en
Publication of CN2092607U publication Critical patent/CN2092607U/en
Withdrawn legal-status Critical Current

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Abstract

The utility model relates to a purifying and sound-absorbing device for automobile. An air inlet pipe whose wall is provided with holes is fixed on a casing body; the air inlet pipe and a slight glossal pipe whose internal sleeve wall is provided with holes pass through radial direction and are fixed on an acoustic panel on the inner wall of the casing; the opening end of the inner casing body which is provided with through holes of the closed side wall of the bottom is fixed on the acoustic panel; the through holes on the acoustic panel are divided into two parts. One of the purifying board made of porous material and catalyst is arranged on the inner wall of the bottom of the inner casing body, and another two notched purifying boards are vertical with the center line and oppositely staggered and are fixed on the inner wall of one side which is provided with an exhaust pipe of the casing body. The purifying, sound-absorbing and flame proof effects of the utility model are below established standards.

Description

Purifying and sound-absorbing devices for automobile
The utility model relates to a kind of silencer for gas flow or venting gas appliance of internal-combustion engine.
The device kind of existing processing vehicle exhaust is a lot, as disclose a kind of<automobile exhaust gas purifying silencing apparatus〉(application number 88203124.4) its formation at utility model patent communique (on January 4th, 1989) is inside and outside guard by suction tude, circular housing, coaxial line, catalyst layer that is filled with between inside and outside guard and anechoic room are formed, and the end that is provided with a suppression ring, interior guard I among the interior guard I is equipped with backflow hemisphere.Be provided with the first and second two expansion cavities in the anechoic room, have the elongated hole that staggers mutually on outer guard, the interior guard, its deficiency is that the obstructed resistance of exhaust emissions is big and flameproof effect is not obvious.
In view of above-mentioned deficiency the purpose of this utility model of the prior art be to provide a kind of rational in infrastructure, can make noise elimination, purification, flameproof effect all reach the purifying vehicle exhaust silencing apparatus of required standard.
The purpose of this utility model can realize by following measure: a kind of purifying vehicle exhaust silencing apparatus, one end of its frame is provided with the outlet pipe the other end and is provided with suction tude, it is characterized in that: suction tude also porose little tongue pipe on the wall of establishing within it porose on this wall passes the insulation board that radially is fixed on the frame inwall, the inner housing opening end that the bottom closed side wall is provided with through hole also is fixed on the insulation board and with the through hole separated into two parts on the insulation board, be located at by porous material and the interior purification plate one piece that catalyzer constituted thereof on the inwall of inner housing bottom, two blocks of purification plate vertical center lines jaggy are staggered relatively in addition is fixed on frame and establishes on the inwall of outlet pipe one side.
The utility model mainly is made up of frame, inner housing, insulation board, suction tude, little tongue pipe and purification plate.Wherein frame has certain space one end to be provided with the enclosing housing that the suction tude the other end is provided with outlet pipe in being, it can be designed to different shape according to dissimilar automobiles,, ellipse rounded as the cross section and square circular etc.The part that suction tude vertical and that be fixed in this frame one end is positioned at the housing outside can link to each other with the motor vehicle exhaust emission pipe.The part that is positioned at frame is the metal tube that some through holes are arranged on the tube wall, by the part tail gas of motor vehicle emission then by these through holes to external diffusion, and change original flow direction, make it to form turbulent flow and carry out noise reduction.In this suction tude, be fixed with a diameter less than it and coaxial with it little tongue pipe, also be provided with some through holes on its tube wall, make by the tail gas that diffuses out on its tube wall repeatedly to change flow direction to reach the purpose of further noise reduction by link.Have the suction tude of little tongue pipe also to pass in above-mentioned to have certain distance with air inlet one end housing body and radially insulation board vertical center line on, this periphery is fixed on insulation board on the frame inwall except that the center hole of fixing suction tude is established at the middle part, remaining part is also regularly arranged some through holes, the inner housing opening end that is fixed on this insulation board can be with the through hole separated into two parts on the insulation board, be inner ring and outer ring, its Internal and external cycle via area sum approximately equal.Above-mentioned inner housing is that the outside that is located at the suction tude afterbody is positioned at simultaneously the inner housing that the bottom with certain space of frame is sealed again, and its sidewall is provided with some through holes.When vehicle exhaust during by suction tude and little tongue pipe spirt inner housing, most of moving along rectilinear direction passed purification plate and turned back through the inner casing body wall reflection of its back, through hole from the inner ring insulation board that inner housing comprised comes out again, and the through hole that turns back again from inner housing periphery outer ring insulation board in addition through the folded space of frame and insulation board comes out.If ring through hole has little time to drain in the big insulation board of the tail gas amount of ejection, then can discharge from the vent hole of assisting out on the inner housing sidewall, above-mentioned inner housing makes several times reflecting than air blast of discharge form the stream of getting a breathing space, can not only reduce noise, make dust sedimentation in the air-flow, can also eliminate flame and Mars in the waste gas.The purification plate of establishing in this device is porous material and constitutes as wire netting or orifice plate, and framework is built-in with certain thickness tai-gas clean-up catalyst, the tail gas of motor vehicle emission is carried out catalytic purification, to reduce the content of carbon monoxide and hydrocarbon.Wherein a purification plate is fixed on the inner housing bottom interior wall relative with the suction tude afterbody, preferably this purification plate leaves certain distance by link with itself and the inwall of being fixed, be beneficial to turn back after tail gas passes purification plate, other two purification plates then are fixed on frame and establish on the inwall of outlet pipe one side, these two with the corresponding purification plate vertical center line jaggy in frame cross section and sagitta all above relative being staggered of breach of center line, can increase the chance of tail gas and catalyst action like this, further reduce the content of carbon monoxide and hydrocarbon in the tail gas.
Drawing is described as follows:
Fig. 1 is the simplified schematic diagram of analysing and observe of the present utility model.
The utility model is described in further detail to utilize the example shown in the accompanying drawing.At analysing and observe in the simplified schematic diagram of purifying vehicle exhaust silencing apparatus shown in Figure 1, there is the suction tude 3 that some through holes are arranged on the root canal wall in the cross section for frame 2 the other end vertical fixing that a circular end is provided with outlet pipe 1, and two groups of links that are made of six yoke plates 4 in suction tude are fixing with the little tongue pipe 5 that also is provided with some through holes on the coaxial with it tube wall.The opposite side of suction tude also is fixed on periphery and is fixed on the center hole of the circular insulation board 6 on the outer casing inner wall, and inner housing 7 opening ends that the bottom closed side wall is provided with some through holes also are fixed on the insulation board, and it is divided into inside and outside two circles with the through hole on the insulation board.Between inside and outside housing, be provided with yoke plate 8 in addition, by metal perforated plate framework and the interior purification plate that catalyzer constituted thereof, on one 9 of its circle is fixed on the inner housing bottom by link the inwall, other two circles lack that shape purification plate 10,11 is staggered relatively to be fixed on frame and to establish on the inwall of outlet pipe one side.
The utility model has following advantage compared to existing technology:
1. simple structure, easily processing and manufacturing, cost are low.
2. be suitable for various diesel oil, gasoline automobile use.
3. power loss is little, in the scope that NBS allows.
4. use this device can make noise be lower than 2~3 decibels of NBS, the content of carbon monoxide and hydrocarbon is lower than 50~70% of NBS in the tail gas.
5. fireproof performance is good.

Claims (1)

1, a kind of purifying vehicle exhaust silencing apparatus, one end of its frame 2 is provided with outlet pipe 1 the other end and is provided with suction tude 3, it is characterized in that: suction tude also porose little tongue pipe 5 on the wall of establishing within it porose on this wall passes the insulation board 6 that radially is fixed on the frame inwall, inner housing 7 opening ends that the bottom closed side wall is provided with through hole also are fixed on the insulation board and with the through hole separated into two parts on the insulation board, be located on the inwall of inner housing bottom two 10 in addition by porous material and the interior purification plate one piece 9 that catalyzer constituted thereof, 11 purification plate vertical center lines jaggy are staggered relatively to be fixed on frame and to establish on the inwall of outlet pipe one side.
CN 91208293 1991-05-13 1991-05-13 Purifying and sound-absorbing devices for automobile Withdrawn CN2092607U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91208293 CN2092607U (en) 1991-05-13 1991-05-13 Purifying and sound-absorbing devices for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91208293 CN2092607U (en) 1991-05-13 1991-05-13 Purifying and sound-absorbing devices for automobile

Publications (1)

Publication Number Publication Date
CN2092607U true CN2092607U (en) 1992-01-08

Family

ID=4917544

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 91208293 Withdrawn CN2092607U (en) 1991-05-13 1991-05-13 Purifying and sound-absorbing devices for automobile

Country Status (1)

Country Link
CN (1) CN2092607U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527297A (en) * 2013-08-20 2014-01-22 湖南吉利汽车部件有限公司 Automobile exhaust thermal reaction purifier
CN107575288A (en) * 2017-10-02 2018-01-12 金华欧仑催化科技有限公司 A kind of catalyst converter
CN108661757A (en) * 2018-04-28 2018-10-16 安徽江淮汽车集团股份有限公司 A kind of harmful influence vehicle exhaust system
CN114017343A (en) * 2021-11-09 2022-02-08 广东美芝制冷设备有限公司 Rotary compressor and refrigeration plant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527297A (en) * 2013-08-20 2014-01-22 湖南吉利汽车部件有限公司 Automobile exhaust thermal reaction purifier
CN103527297B (en) * 2013-08-20 2016-01-27 湖南吉利汽车部件有限公司 A kind of automobile exhaust thermal reaction purification device
CN107575288A (en) * 2017-10-02 2018-01-12 金华欧仑催化科技有限公司 A kind of catalyst converter
CN108661757A (en) * 2018-04-28 2018-10-16 安徽江淮汽车集团股份有限公司 A kind of harmful influence vehicle exhaust system
CN108661757B (en) * 2018-04-28 2019-10-25 安徽江淮汽车集团股份有限公司 A kind of harmful influence vehicle exhaust system
CN114017343A (en) * 2021-11-09 2022-02-08 广东美芝制冷设备有限公司 Rotary compressor and refrigeration plant
CN114017343B (en) * 2021-11-09 2024-01-23 广东美芝制冷设备有限公司 Rotary compressor and refrigeration equipment

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C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee