CN105386814A - Silencer for diesel engine - Google Patents
Silencer for diesel engine Download PDFInfo
- Publication number
- CN105386814A CN105386814A CN201510939154.1A CN201510939154A CN105386814A CN 105386814 A CN105386814 A CN 105386814A CN 201510939154 A CN201510939154 A CN 201510939154A CN 105386814 A CN105386814 A CN 105386814A
- Authority
- CN
- China
- Prior art keywords
- chamber
- end cover
- housing
- dividing plate
- rear end
- 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
Links
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
- F01N1/00—Silencing apparatus characterised by method of silencing
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- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
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- 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
- F01N2490/02—Two or more expansion chambers in series connected by means of tubes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencer for a diesel engine. The silencer comprises a front end cover, a front partition plate, a gas exhaust tube, a rear end cover, a rear partition plate, a gas inlet tube and a housing, wherein front and rear sides of the housing are provided with openings; the front end cover is arranged in the opening at the front side of the housing; the rear end cover is arranged in the opening at the rear side of the housing; the front end cover, the rear end cover and the housing form a sealed chamber; the front partition plate and the rear partition plate are sequentially arranged inside the housing from front to rear; the front end cover, the rear end cover, the front partition plate and the rear partition plate are parallel to one another; the front partition plate and the rear partition plate are used for driving the sealed chamber into a first chamber, a second chamber and a third chamber which are distributed from front to rear; an outlet of the gas inlet tube is mounted at the third chamber; and an inlet of the gas exhaust tube is mounted at the first chamber. The silencer has the beneficial effects that: by virtue of the three chambers formed through the front and the rear partition plates and the housing, pressure and flow velocity of gas entering an expanding cavity from the gas inlet tube are reduced, so that the purpose of reducing noises is achieved.
Description
Technical field
The present invention relates to a kind of muffler for motor, refer to a kind of diesel engine silencing apparatus especially.
Background technique
Diesel engine is that burning diesel oil is to obtain exergonic motor, belong to compression-ignited, be characterized in: 1. good dynamic property, the thermal efficiency is high, 2. the weight of specific power is low, and 3. extensively adopting exhaust gas turbocharge and improve supercharging level, is 4. that diesel engine does not have ignition system, so the less maintenance of fault is easy, reliable operation.But because the working principle of diesel engine, the unexpected perfect combustion of diesel oil can make the gas undergoes rapid expansion in cylinder, such piston has a swift and violent active force down, at this moment because the running inertia of motor, piston can not down move smoothly very much, will cause engine knock like this, and namely piston skirt and cylinder wall collide, can operationally produce larger noise, noise pollution is caused to environment.
Summary of the invention
Therefore the present invention proposes a kind of diesel engine silencing apparatus, solves the problem that conventional diesel operating noise is excessive.
Technological scheme of the present invention is achieved in that a kind of diesel engine silencing apparatus, comprises front cover, front dividing plate, outlet pipe, rear end cover, rear bulkhead, suction tude, housing, before and after housing, side has opening, described front cover is located at housing front openings place, described rear end cover is located at housing rear openings place, front cover, rear end cover and housing form airtight chamber jointly, described front dividing plate, rear bulkhead is located at enclosure interior from front to back successively, and front cover, rear end cover, front dividing plate and rear bulkhead are parallel to each other, airtight chamber is divided into the first chamber distributed from front to back by front dividing plate and rear bulkhead, second chamber and the 3rd chamber, the outlet of suction tude is successively through front cover, front dividing plate and rear bulkhead, be installed on the 3rd chamber, the entrance of outlet pipe is successively through rear end cover, rear bulkhead and front dividing plate, be installed on the first chamber.
The 3rd chamber that described rear bulkhead and rear end cover are formed is expansion cavity, air-flow flows into from the suction tude of silencing apparatus, expansion cavity is flowed into by the end of suction tude, air-flow at this moment flow velocity is slack-off, then successively by rear bulkhead, the second chamber, front dividing plate, the first chamber, the noise of air-flow in flow process is also corresponding to diminish and then reaches the object reducing noise, discharges eventually through outlet pipe.
Further, described suction tude is connected by welding manner with front dividing plate, and described outlet pipe is connected by welding manner with rear bulkhead.Connect more fastening.And such structure is compact in limited space, chassis arranges silencing apparatus, maximizedly make use of space.
Again further, the volume of the first chamber is equal with the volume of the 3rd chamber, and the volume of the first chamber is greater than the volume of the second chamber.
Again further, the suction tude between described front cover and front dividing plate is surrounded by suction tude involucrum, the outlet pipe between described rear bulkhead and rear end cover is surrounded by outlet pipe involucrum, play the effect improving erasure effect.
By above-mentioned disclosure, beneficial effect of the present invention is: three chambers formed by forward and backward dividing plate and housing, reduces the pressure and the flow velocity that enter expansion intracavity gas from suction tude, and then reaches the object reducing noise.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, diesel engine silencing apparatus, comprises front cover 1, front dividing plate 2, outlet pipe 3, rear end cover 5, rear bulkhead 6, suction tude 7, housing 8.
Before and after housing 8, side has opening, the conveniently dismounting of front cover 1 and rear end cover 5, described front cover 1 buckles into housing 8 front openings place, described rear end cover 5 buckles into housing 8 rear openings place, front cover 1, rear end cover 5 and housing 8 form airtight chamber jointly, described front dividing plate 2, it is inner that rear bulkhead 6 is located at housing 8 from front to back successively, and front cover 1, rear end cover 5, front dividing plate 2 and rear bulkhead 6 are parallel to each other, airtight chamber is divided into the first chamber distributed from front to back by front dividing plate 2 and rear bulkhead 6, second chamber and the 3rd chamber, the volume of the first chamber is equal with the volume of the 3rd chamber, the volume of the first chamber is greater than the volume of the second chamber, the outlet of suction tude 7, successively through front cover 1, front dividing plate 2 and rear bulkhead 6, is installed on the 3rd chamber, and the entrance of outlet pipe 3, successively through rear end cover 5, rear bulkhead 6 and front dividing plate 2, is installed on the first chamber.
In three chambers that housing is divided into by two dividing plates, described rear bulkhead 6 forms an expansion cavity, namely the 3rd chamber with rear end cover 5; The waste gas that during work, internal combustion engine cylinders produces flows into from suction tude 7 of the present invention, the end of suction tude 7 is expansion cavity, air-flow reduces pressure when entering the 3rd chamber by suction tude 7, and flow velocity is slack-off, and the noise of air-flow in flow process is also corresponding to diminish and then reaches the object reducing noise.Air-flow successively by rear bulkhead 6, second chamber, front dividing plate 2, first chamber, then is got rid of from outlet pipe 3.
For making suction tude 7 more fastening with the connection of front dividing plate 2, outlet pipe 3 and rear bulkhead 6, further, described suction tude 7 is connected by welding manner with front dividing plate 2, and described outlet pipe 3 is connected by welding manner with rear bulkhead 6.
Further, the suction tude 7 between described front cover 1 and front dividing plate 2 is surrounded by suction tude involucrum 4, the outlet pipe 3 between described rear bulkhead 6 and rear end cover 5 is surrounded by outlet pipe involucrum 9.Play the effect further improving erasure effect.
Working principle of the present invention: the waste gas that during work, internal combustion engine cylinders produces flows into from from suction tude 7, the end of suction tude 7 is located at the 3rd chamber, 3rd chamber is expansion cavity, air-flow reduces pressure when entering the 3rd chamber by suction tude 7, flow velocity is slack-off, then successively by rear bulkhead 6, second chamber, front dividing plate 2, first chamber, the noise of air-flow in flow process is also corresponding to diminish and then reaches the object reducing noise, discharges eventually through outlet pipe 3.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a diesel engine silencing apparatus, is characterized in that: comprise front cover (1), front dividing plate (2), outlet pipe (3), rear end cover (5), rear bulkhead (6), suction tude (7), housing (8);
Before and after housing (8), side has opening, described front cover (1) is located at housing (8) front openings place, described rear end cover (5) is located at housing (8) rear openings place, front cover (1), rear end cover (5) and housing (8) form airtight chamber jointly, described front dividing plate (2), it is inner that rear bulkhead (6) is located at housing (8) from front to back successively, and front cover (1), rear end cover (5), front dividing plate (2) and rear bulkhead (6) are parallel to each other, airtight chamber is divided into the first chamber distributed from front to back by front dividing plate (2) and rear bulkhead (6), second chamber and the 3rd chamber, the outlet of suction tude (7) is successively through front cover (1), front dividing plate (2) and rear bulkhead (6), be installed on the 3rd chamber, the entrance of outlet pipe (3) is successively through rear end cover (5), rear bulkhead (6) and front dividing plate (2), be installed on the first chamber.
2. a kind of diesel engine silencing apparatus according to claim 1, it is characterized in that: described suction tude (7) is connected by welding manner with front dividing plate (2), described outlet pipe (3) is connected by welding manner with rear bulkhead (6).
3. a kind of diesel engine silencing apparatus according to claim 1, is characterized in that: the volume of the first chamber is equal with the volume of the 3rd chamber, and the volume of the first chamber is greater than the volume of the second chamber.
4. a kind of diesel engine silencing apparatus according to claim 1, it is characterized in that: the suction tude (7) between described front cover (1) and front dividing plate (2) is surrounded by suction tude involucrum (4), the outlet pipe (3) between described rear bulkhead (6) and rear end cover (5) is surrounded by outlet pipe involucrum (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939154.1A CN105386814A (en) | 2015-12-15 | 2015-12-15 | Silencer for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939154.1A CN105386814A (en) | 2015-12-15 | 2015-12-15 | Silencer for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105386814A true CN105386814A (en) | 2016-03-09 |
Family
ID=55419502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510939154.1A Pending CN105386814A (en) | 2015-12-15 | 2015-12-15 | Silencer for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105386814A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019378A (en) * | 2016-11-02 | 2018-05-11 | 天津瑞祥千弘科技发展有限公司 | Compound broadband silencer |
| US10196947B2 (en) | 2016-02-02 | 2019-02-05 | Kohler Co. | Muffler |
| CN114087059A (en) * | 2021-12-07 | 2022-02-25 | 安徽江淮汽车集团股份有限公司 | Silencer suitable for high air velocity |
-
2015
- 2015-12-15 CN CN201510939154.1A patent/CN105386814A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10196947B2 (en) | 2016-02-02 | 2019-02-05 | Kohler Co. | Muffler |
| CN108019378A (en) * | 2016-11-02 | 2018-05-11 | 天津瑞祥千弘科技发展有限公司 | Compound broadband silencer |
| CN114087059A (en) * | 2021-12-07 | 2022-02-25 | 安徽江淮汽车集团股份有限公司 | Silencer suitable for high air velocity |
| CN114087059B (en) * | 2021-12-07 | 2023-03-07 | 安徽江淮汽车集团股份有限公司 | Silencer suitable for high air speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160309 |