CN104153863A - Catalytic agent silencer capable of lowering exhaust temperature - Google Patents
Catalytic agent silencer capable of lowering exhaust temperature Download PDFInfo
- Publication number
- CN104153863A CN104153863A CN201410286821.6A CN201410286821A CN104153863A CN 104153863 A CN104153863 A CN 104153863A CN 201410286821 A CN201410286821 A CN 201410286821A CN 104153863 A CN104153863 A CN 104153863A
- Authority
- CN
- China
- Prior art keywords
- baffle wall
- silencer
- delivery temperature
- dividing walls
- catalytic agent
- 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
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Abstract
The invention discloses a catalytic agent silencer capable of lowering the exhaust temperature, and belongs to the technical field of air flow silencers. The catalytic agent silencer solves the technical problem that an existing catalytic agent silencer is high in exhaust temperature. The catalytic agent silencer comprises a silencer body. The silencer body is provided with an exhaust passageway, an exhaust gas outlet and an exhaust port. A diversion cover is arranged outside the exhaust port and comprises a diversion wall and a flow blocking wall. Diversion holes are formed in the diversion wall. A semi-closed air flow buffer space is defined by the diversion wall and the flow blocking wall. The catalytic agent silencer serves as an air flow silencer of a machine or an engine or serves as an air flow silencer of an internal combustion engine, for example, a catalytic agent silencer applied to a gardening tool gasoline engine.
Description
[technical field]
The present invention relates to catalyst baffler, belong to silencer for gas flow technical field.
[background technique]
The hand-held garden instrument taking petrol engine as power of existing domestic and international production in order to reach emission standard, is installed catalyst baffler on instrument.Existing most baffler, the gas flow temperature of discharging from its relief opening is higher, although more existing bafflers have designed some structure optimization measures therein, but actual cooling-down effect is unsatisfactory, those skilled in the art go for better cooling-down effect, also need current muffler structure to improve.
[summary of the invention]
Problem to be solved by this invention is just to provide a kind of catalyst baffler, effectively reduces delivery temperature.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
Can reduce the catalyst baffler of delivery temperature, comprise muffler body, described muffler body has exhaust passage, waste gas outlet and relief opening, the outside of described relief opening is also provided with fluid dividing cover, described fluid dividing cover has dividing walls and baffle wall, described dividing walls is provided with tap hole, and dividing walls and baffle wall surround semi-enclosed air-flow buffer space.
Further, described dividing walls is just to airflow direction, and described baffle wall comprises the first baffle wall and the second baffle wall that are arranged on the adjacent both sides of described dividing walls.
Further, described the first baffle wall and airflow direction form angle α, and angle α meets: 0 °≤α≤60 °.
Further, described the second baffle wall and airflow direction form angle β, and angle β meets: 0 °≤β≤60 °.
Further, described the first baffle wall and the second baffle wall are connected in muffler body.
Further, the area of described dividing walls is greater than the sectional area of relief opening.
Further, the sectional area of described tap hole is 0.2mm
2-20mm
2.
Further, the hole of described tap hole is in the heart apart from the 1-1.8 times that be aperture.
Further, the spacing of described dividing walls and relief opening is 3mm-100mm.
Beneficial effect of the present invention:
Catalyst baffler of the present invention, in its relief opening arranged outside fluid dividing cover, this fluid dividing cover is provided with dividing walls and baffle wall, dividing walls wherein at high-temperature high-speed airflow from baffler relief opening discharge process, play obstruct, shunting action, part air-flow mixes with extraneous normal temperature air through after tap hole, and this part gas flow temperature declines, and do not spread to surrounding by bounce-back in air-flow buffer space through the part air-flow of tap hole, but due to the effect of baffle wall, most of air-flow can directly not discharged, but collide with high-temperature high-speed airflow follow-up and that come, because two strands of airflow directions are contrary, mutually after collision, form low temperature low speed flow, this part low temperature low speed flow is discharged by the opening (not formed by the part of the first baffle wall and the encirclement of the second baffle wall on fluid dividing cover) of fluid dividing cover again, compare current conventional catalyst baffler directly from relief opening exhaust, after the present invention arranges fluid dividing cover, the gas flow temperature of being discharged by fluid dividing cover has obvious decline.Prove by experiment, catalyst baffler of the present invention can be down to the high temperature gas flow of 400 DEG C-600 DEG C below 230 DEG C, has met the standard of " temperature of exhaust gas should not exceed 246 DEG C " of GB19724-2005/ISO9467:1993 " forestry machinery portable chain saw and brush cutter easily cause the releasing system of fire " 4.3 clauses.
These features of the present invention and advantage will be below embodiment, accompanying drawing in detailed exposure.
[brief description of the drawings]
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation (thermal shield is not installed) of catalyst baffler in the embodiment of the present invention;
Fig. 2 is the structural representation (installation thermal shield) of catalyst baffler in the embodiment of the present invention;
Fig. 3 is the internal structure schematic diagram of catalyst baffler in the embodiment of the present invention;
Fig. 4 is the structural representation of fluid dividing cover in the embodiment of the present invention;
Fig. 5 is the plan view of fluid dividing cover in the embodiment of the present invention;
Fig. 6 is the front elevation of fluid dividing cover in the embodiment of the present invention.
[embodiment]
Accompanying drawing below in conjunction with the embodiment of the present invention is explained and illustrated the technological scheme of the embodiment of the present invention, but following embodiment is only the preferred embodiments of the present invention, not all.Based on the embodiment in mode of execution, those skilled in the art are other embodiments that obtains under the prerequisite of not making creative work, all belong to protection scope of the present invention.
With reference to Fig. 1,2,3, the catalyst baffler of the embodiment of the present invention, comprise muffler body 1, on a sidewall of muffler body 1, waste gas outlet 11 is set, above the sidewall that waste gas outlet 11 is set, cover heat-insulating shield 3, thereby form exhaust passage 4, the front end of exhaust passage 4 forms relief opening 41, conventionally at the afterbody of exhaust passage 4, suction port 42 is also set.Air enters in exhaust passage 4 and with the high-temp waste gas that waste gas outlet 11 is discharged and produces hydrostatic effects from suction port 42, normal temperature air is entered after mix with high-temp waste gas exhaust passage 4 and discharge, can reduce temperature of exhaust gas.Certainly, exhaust passage of the present invention portion limitation is said structure, in other embodiments, the exhaust passage forming by other means also in protection scope of the present invention, for example integrated exhaust passage.
The present embodiment, on such scheme basis, is also provided with fluid dividing cover 2 in the outside of relief opening 41, and fluid dividing cover 2 has dividing walls and baffle wall, and dividing walls 21 is provided with tap hole 211, and dividing walls and baffle wall surround semi-enclosed air-flow buffer space.Utilize obstruct, the shunting action of fluid dividing cover 2 further to reduce the gas flow temperature that relief opening 41 is discharged, make it reach better cooling-down effect.
In conjunction with Fig. 4, the fluid dividing cover 2 of the present embodiment is normally by the impact briquetting such as aludip or corrosion resistant plate, there are three solid faces: a dividing walls 21 and two baffle walls, wherein dividing walls 21 is just to airflow direction, and the area of dividing walls 21 is greater than the sectional area of relief opening 41; The first baffle wall 23 and the second baffle wall 22 are arranged on the adjacent both sides of dividing walls 21, and the first baffle wall 23 and the second baffle wall 22 are connected in muffler body 1.Baffle wall, the first baffle wall 23 and the second baffle wall 22 have surrounded semi-enclosed air-flow buffer space, and the part of not surrounded by the first baffle wall 23 and the second baffle wall 22 on fluid dividing cover 2 has formed opening.Certainly, the baffle wall of fluid dividing cover 2 of the present invention is not limited to said structure, in other embodiments, can baffle wall be all set at three of a dividing walls side, and a dividing walls and three baffle walls surround semi-enclosed air-flow buffer space.
In dividing walls 21, be provided with tap hole 211, the shape of tap hole 211 can be designed to the various formation such as circle, square, triangle, rhombus according to actual needs, as long as can allow in principle air-flow pass through, but the present embodiment is in order to reach better effect, dividing walls 21 and tap hole 211 structures are optimized, and the structure of optimization includes but not limited to following scheme:
1, the sectional area of tap hole 211 is 0.2mm
2-20mm
2, do not affecting on the basis of fluid dividing cover 2 intensity, better the throughput of balanced shunting and obstruct;
2, the hole of tap hole 211, in the heart apart from the 1-1.8 times that be aperture, can make air-flow evenly pass through in dividing walls 21, and the obstruct of dividing walls 21, shunting action are given full play to;
3, dividing walls 21 is 3mm-100mm with the spacing of relief opening 41.
Above three kinds of schemes can combine use or combination of two is implemented or implemented separately.
In conjunction with Fig. 4, for baffle wall, do not rebounded and spread to surrounding through the part air-flow of tap hole 211, aforesaid two baffle walls play barrier effect, this part air-flow can directly not discharged, but collide with high-temperature high-speed airflow follow-up and that come, because two strands of airflow directions are contrary, mutually after collision, form low temperature low speed flow, this part low temperature low speed flow is discharged by the opening of fluid dividing cover 2 again, and the gas flow temperature of at this moment being discharged by the opening of fluid dividing cover 2 is compared, the gas flow temperature of previously discharging from exhaust passage 4 relief openings 41 is existing obviously to decline.
With reference to Fig. 5,6, for reaching good effect, the present embodiment is also optimized the first baffle wall 23 and the second baffle wall 22 structures: the first baffle wall 23 forms angle α with airflow direction, and angle α meets: 0 °≤α≤60 °; The second baffle wall 22 forms angle β with airflow direction, and angle β meets: 0 °≤β≤60 °.
Taking the angles of 30 ° as example, in the time of the first baffle wall 23 and 30 ° of angles of the each formation of the second baffle wall 22 relative wind directions, high-temperature high-speed airflow is through intercepting bounce-back, become as air-flow a little less than the dispergated low temperature low speed of circular cone of approximate 120 ° of drift angle, in the thermometric region of regulation, cooling all can reach more than 30%.
The embodiment of the present invention is applied to the silencer for gas flow of machine or motor; The silencer for gas flow of internal-combustion engine, for example: be applied in the catalyst baffler on garden instrument petrol engine.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is familiar with this those skilled in the art and should be understood that the content the present invention includes but be not limited to accompanying drawing and describe in embodiment above.Any amendment that does not depart from function and structure principle of the present invention all will be included in the scope of claims.
Claims (9)
1. can reduce the catalyst baffler of delivery temperature, comprise muffler body, described muffler body has exhaust passage, waste gas outlet and relief opening, it is characterized in that: the outside of described relief opening is also provided with fluid dividing cover, described fluid dividing cover has dividing walls and baffle wall, described dividing walls is provided with tap hole, and dividing walls and baffle wall surround semi-enclosed air-flow buffer space.
2. the catalyst baffler that reduces delivery temperature as claimed in claim 1, is characterized in that: described dividing walls is just to airflow direction, and described baffle wall comprises the first baffle wall and the second baffle wall that are arranged on the adjacent both sides of described dividing walls.
3. the catalyst baffler that reduces delivery temperature as claimed in claim 2, is characterized in that: described the first baffle wall and airflow direction form angle α, and angle α meets: 0 °≤α≤60 °.
4. the catalyst baffler that reduces delivery temperature as claimed in claim 2, is characterized in that: described the second baffle wall and airflow direction form angle β, and angle β meets: 0 °≤β≤60 °.
5. the catalyst baffler that reduces delivery temperature as claimed in claim 2, is characterized in that: described the first baffle wall and the second baffle wall are connected in muffler body.
6. the catalyst baffler that reduces delivery temperature as claimed in claim 2, is characterized in that: the area of described dividing walls is greater than the sectional area of relief opening.
7. the catalyst baffler of the reduced delivery temperature as described in claim 1 to 6 any one, is characterized in that: the sectional area of described tap hole is 0.2mm
2-20mm
2.
8. the catalyst baffler of the reduced delivery temperature as described in claim 1 to 6 any one, is characterized in that: the hole of described tap hole in the heart apart from the 1-1.8 for aperture doubly.
9. the catalyst baffler of the reduced delivery temperature as described in claim 2 to 6 any one, is characterized in that: the spacing of described dividing walls and relief opening is 3mm-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286821.6A CN104153863A (en) | 2014-06-24 | 2014-06-24 | Catalytic agent silencer capable of lowering exhaust temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286821.6A CN104153863A (en) | 2014-06-24 | 2014-06-24 | Catalytic agent silencer capable of lowering exhaust temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104153863A true CN104153863A (en) | 2014-11-19 |
Family
ID=51879468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410286821.6A Pending CN104153863A (en) | 2014-06-24 | 2014-06-24 | Catalytic agent silencer capable of lowering exhaust temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104153863A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499490A (en) * | 2015-09-07 | 2017-03-15 | 川崎重工业株式会社 | The deafener of general purpose engine |
| CN107458196A (en) * | 2017-09-18 | 2017-12-12 | 桐乡风腾专利运营有限公司 | A kind of bumper and absorbing shock weather strip for automobile |
| CN110118114A (en) * | 2019-02-28 | 2019-08-13 | 浙江亚特电器有限公司 | A kind of exhaust structure for muffler of four-stroke gasoline engine chain saw |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2822966A1 (en) * | 1978-05-26 | 1979-11-29 | Dolmar Maschfab | Silencer for IC engine for garden tools - has side shaped to form venturi to draw in cooling air |
| CN87212803U (en) * | 1987-11-23 | 1988-12-21 | 朱尊德 | Safty and ecnomizing energy exhaust muffler for internal combustion engine |
| DE4120877A1 (en) * | 1991-06-21 | 1992-12-24 | Stihl Maschf Andreas | WORKING MACHINE, IN PARTICULAR MOTOR CHAINSAW |
| US5883342A (en) * | 1996-05-25 | 1999-03-16 | Andreas Stihl Ag & Co. | Muffling device for combustion engines |
| US6109026A (en) * | 1995-06-22 | 2000-08-29 | Aktiebolaget Electrolux | Muffler with catalytic converter |
| CN1580509A (en) * | 2003-08-06 | 2005-02-16 | 安德烈亚斯·斯蒂尔两合公司 | Exhausting silencer |
| CN1629456A (en) * | 2003-12-19 | 2005-06-22 | 陈勇兵 | Silencer |
| CN101298846A (en) * | 2008-03-16 | 2008-11-05 | 董云云 | Internal combustion engine noise elimination, waste gas purification, discharging device |
| WO2012030261A1 (en) * | 2010-09-01 | 2012-03-08 | Husqvarna Ab | Power tool exhaust cooling system |
| CN103422955A (en) * | 2013-08-20 | 2013-12-04 | 浙江中马园林机器有限公司 | Silencer of two-stroke engine |
| CN203515741U (en) * | 2013-11-15 | 2014-04-02 | 浙江哈雷动力机械有限公司 | Two-stroke gasoline engine silencer |
| CN204041180U (en) * | 2014-06-24 | 2014-12-24 | 浙江亚特电器有限公司 | The catalyst baffler of delivery temperature can be reduced |
-
2014
- 2014-06-24 CN CN201410286821.6A patent/CN104153863A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2822966A1 (en) * | 1978-05-26 | 1979-11-29 | Dolmar Maschfab | Silencer for IC engine for garden tools - has side shaped to form venturi to draw in cooling air |
| CN87212803U (en) * | 1987-11-23 | 1988-12-21 | 朱尊德 | Safty and ecnomizing energy exhaust muffler for internal combustion engine |
| DE4120877A1 (en) * | 1991-06-21 | 1992-12-24 | Stihl Maschf Andreas | WORKING MACHINE, IN PARTICULAR MOTOR CHAINSAW |
| US6109026A (en) * | 1995-06-22 | 2000-08-29 | Aktiebolaget Electrolux | Muffler with catalytic converter |
| US5883342A (en) * | 1996-05-25 | 1999-03-16 | Andreas Stihl Ag & Co. | Muffling device for combustion engines |
| CN1580509A (en) * | 2003-08-06 | 2005-02-16 | 安德烈亚斯·斯蒂尔两合公司 | Exhausting silencer |
| CN1629456A (en) * | 2003-12-19 | 2005-06-22 | 陈勇兵 | Silencer |
| CN101298846A (en) * | 2008-03-16 | 2008-11-05 | 董云云 | Internal combustion engine noise elimination, waste gas purification, discharging device |
| WO2012030261A1 (en) * | 2010-09-01 | 2012-03-08 | Husqvarna Ab | Power tool exhaust cooling system |
| CN103422955A (en) * | 2013-08-20 | 2013-12-04 | 浙江中马园林机器有限公司 | Silencer of two-stroke engine |
| CN203515741U (en) * | 2013-11-15 | 2014-04-02 | 浙江哈雷动力机械有限公司 | Two-stroke gasoline engine silencer |
| CN204041180U (en) * | 2014-06-24 | 2014-12-24 | 浙江亚特电器有限公司 | The catalyst baffler of delivery temperature can be reduced |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499490A (en) * | 2015-09-07 | 2017-03-15 | 川崎重工业株式会社 | The deafener of general purpose engine |
| CN106499490B (en) * | 2015-09-07 | 2019-05-07 | 川崎重工业株式会社 | The muffler of general purpose engine |
| CN107458196A (en) * | 2017-09-18 | 2017-12-12 | 桐乡风腾专利运营有限公司 | A kind of bumper and absorbing shock weather strip for automobile |
| CN110118114A (en) * | 2019-02-28 | 2019-08-13 | 浙江亚特电器有限公司 | A kind of exhaust structure for muffler of four-stroke gasoline engine chain saw |
| CN110118114B (en) * | 2019-02-28 | 2023-10-13 | 浙江亚特电器股份有限公司 | Muffler exhaust structure of four-stroke petrol engine chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141119 |
|
| RJ01 | Rejection of invention patent application after publication |