CN209483513U - A kind of multi-cylinder diesel engine air inlet pipe with silencer - Google Patents
A kind of multi-cylinder diesel engine air inlet pipe with silencer Download PDFInfo
- Publication number
- CN209483513U CN209483513U CN201822269424.4U CN201822269424U CN209483513U CN 209483513 U CN209483513 U CN 209483513U CN 201822269424 U CN201822269424 U CN 201822269424U CN 209483513 U CN209483513 U CN 209483513U
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- pipe
- air inlet
- hush pipe
- diesel engine
- noise reduction
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Abstract
The multi-cylinder diesel engine air inlet pipe with silencer that the utility model discloses a kind of, including hollow double-walled hush pipe, silencing cotton and resonance box, air inlet is offered in the middle part of the resonance box left side wall, blow vent is provided in the middle part of the resonance box right side wall, the resonance box right side central is horizontally arranged with hush pipe, and it is communicated inside internal Vibration Box together by blow vent on the left of hush pipe, the hush pipe inner right side is fixed with baffle, the noise reduction tube wall equidistantly offers several noise reduction through-holes, the hollow double-walled noise reduction inside pipe wall is successively fixed with metal knitted pipe and silencing cotton, corrugated tube is provided on the silencing cotton inner sidewall.By the way that hollow double-walled hush pipe, silencing cotton and resonance box is arranged, solve the problems, such as that current multi-cylinder diesel engine air inlet pipe noise is excessive causes to damage the body and mind of people and environmental pollution the utility model.
Description
Technical field
The utility model relates to technical field of internal combustion engines, specially a kind of multi-cylinder diesel engine air inlet pipe with silencer.
Background technique
Internal combustion engine is a kind of dynamic power machine, it is by making fuel in machine internal-combustion, and the thermal energy released is straight
Switch through the Thermal Motor for being changed to power, intake lines of combustion engines refers to that the gas for needing the burning of internal combustion engine machine imports in machine
The tracheae in portion, inlet valve periodically opening and closing necessarily causes air pressure and density fluctuation variation in admission line, to form sky
Aerodynamic force noise, that is, induction noise, according to mechanism of production difference, induction noise mainly contains following several: periodically
Pressure fluctuation noise, eddy current crack, the Helmholz resonance noise of cylinder and air inlet pipe air column resonance noise, fresh air into
After entering air inlet pipe, during the opening and closing of valve, the fluctuation of engine charge pipeline hollow atmospheric pressure and speed will be caused, drawn
The cyclically-varying of atmospheric density is played, periodic pressure microseismic noise is generated.But air inlet pipe noise result is handled in the prior art
Difference causes to damage the body and mind of people and the pollution to environment.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of multi-cylinder diesel engine air inlet pipe with silencer,
Solving the problems, such as that current multi-cylinder diesel engine air inlet pipe noise is excessive causes to damage the body and mind of people and environmental pollution.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions: a kind of multi-cylinder diesel engine with silencer
Air inlet pipe, the resonance box left side wall middle part offers air inlet, is provided with blow vent in the middle part of the resonance box right side wall, described
Resonance box right side central is horizontally arranged with hush pipe, and is communicated inside internal Vibration Box together by blow vent on the left of hush pipe, institute
It states hush pipe inner right side and is fixed with baffle, the noise reduction tube wall equidistantly offers several noise reduction through-holes, described hollow double
Wall noise reduction inside pipe wall is successively fixed with metal knitted pipe and silencing cotton, is provided with corrugated tube on the silencing cotton inner sidewall, described
Corrugated tube right end is provided with gas outlet.
Preferably, each noise reduction through-hole diameter is 4mm, and each noise reduction through hole center is away from for 6mm.
Preferably, the air inlet, blow vent, hush pipe, corrugated tube, metal knitted pipe and hollow double-walled hush pipe are all
It is round.
Preferably, the baffle is taper.
Preferably, the diameter of the corrugated tube is twice of noise reduction pipe diameter.
(3) beneficial effect
The utility model provides a kind of multi-cylinder diesel engine air inlet pipe with silencer, have it is following the utility model has the advantages that
(1) the utility model is by setting hush pipe and baffle, and the gas that baffle can be such that high speed enters is quickly to four
Week diffusion, avoids the air impingement hush pipe side wall entered by high speed from leading to the generation of noise, while it is longer to possess gas
The kinetic energy that stroke reduces gas achievees the effect that reduction noise, and the setting of hush pipe can absorb the energy from gas again and reach
Reduce the purpose of noise.
(2) for the utility model by setting resonance box, bellows and hollow double-walled hush pipe, resonance box is absorbable most of
Sound energy, the flexible connection of bellows is absorbable to be shaken from gas kinetic energy bring, and hollow double-walled hush pipe utilizes hollow material
Noise is reduced, when sound wave enters hollow double-walled noise reduction tube wall, due to being vacuum state, sound inside hollow double-walled hush pipe
Wave cannot be propagated in vacuo, and then reach erasure effect.
Detailed description of the invention
Fig. 1 faces section structural schematic diagram for the utility model；
Fig. 2 is the right view section structural schematic diagram of the utility model.
Appended drawing reference in figure are as follows: 1, hollow double-walled hush pipe；2, metal knitted pipe；3, silencing cotton；4, corrugated tube；5, noise reduction
Pipe；6, baffle；7, air inlet；8, resonate box；9, blow vent；10, noise reduction through-hole；11, gas outlet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figs. 1-2, the utility model provides a kind of technical solution: a kind of multi-cylinder diesel engine air inlet with silencer
Pipe, including hollow double-walled hush pipe 1, silencing cotton 3 and resonance box 8, resonance 8 left side wall of box middle part offer air inlet 7, and resonate box
It is provided with blow vent 9 in the middle part of 8 right side walls, the impact compared with high air velocity can be born, resonance 8 right side central of box, which is horizontally arranged with, to disappear
Sound tube 5, and communicated inside the internal Vibration Box 8 together in 5 left side of hush pipe by blow vent 9,5 inner right side of hush pipe is fixed with water conservancy diversion
Block 6, and baffle 6 is taper, and 5 side wall of air impingement hush pipe entered by high speed is avoided to lead to the generation of noise, hush pipe 5
Tube wall equidistantly offers several noise reduction through-holes 10, and 10 diameter of noise reduction through-hole is 4mm, between noise reduction through-hole 10 and noise reduction through-hole 10
Center is away from for 6mm, and 10 sum of noise reduction through-hole is not less than 50, and hollow 1 inner wall of double-walled hush pipe is successively fixed with metal knitted
Pipe 2 and silencing cotton 3 are provided with corrugated tube 4 on 3 inner sidewall of silencing cotton, can absorb and shake from gas kinetic energy bring, and waveform
The diameter of pipe 4 is twice of 5 diameter of hush pipe, air inlet 7, blow vent 9, hush pipe 5, corrugated tube 4, metal knitted pipe 2 and in
Empty double-walled hush pipe 1 is all circle, and 4 right end of corrugated tube is provided with gas outlet 11.
Working principle: engine starts to do four stroke movements after engine is opened, the cylinder exhaust when valve is opened
Live gas is sucked simultaneously, and live gas enters the resonant cavity in resonance box 8 by air inlet 7, and the box 8 that resonates at this time can absorb one
Partial noise, when gas can be flowed by noise reduction through-hole 10 to 5 surrounding of hush pipe gas after blow vent 9 enters hush pipe 5
4 lumen of corrugated tube is reached, gas is moved from left to right along 4 lumen of corrugated tube at this time enters cylinder behind gas outlet 11
Inside participates in burning, and the mobile noise that generates of gas can successively be disappeared by corrugated tube 4, silencing cotton 3, metal knitted pipe 2 and hollow double-walled
Sound tube 1, which successively absorbs, achievees the purpose that noise reduction.
It can to sum up obtain, the utility model solves mesh by the way that hollow double-walled hush pipe 1, silencing cotton 3 and resonance box 8 is arranged
Preceding multi-cylinder diesel engine air inlet pipe noise is excessive to be caused to damage the body and mind of people and the problem of environmental pollution.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of multi-cylinder diesel engine air inlet pipe with silencer, including hollow double-walled hush pipe (1), silencing cotton (3) and resonance
Box (8), it is characterised in that: offered air inlet (7) in the middle part of resonance box (8) left side wall, in resonance box (8) right side wall
Portion is provided with blow vent (9), and resonance box (8) right side central is horizontally arranged with hush pipe (5), and in hush pipe (5) left side
Portion communicates internal pass through blow vent (9) of Vibration Box (8) together, and hush pipe (5) inner right side is fixed with baffle (6), described
Hush pipe (5) tube wall equidistantly offers several noise reduction through-holes (10), and hollow double-walled hush pipe (1) inner wall is successively fixed with gold
Belong to woven tube (2) and silencing cotton (3), is provided with corrugated tube (4) on silencing cotton (3) inner sidewall, corrugated tube (4) right end
It is provided with gas outlet (11).
2. a kind of multi-cylinder diesel engine air inlet pipe with silencer according to claim 1, it is characterised in that: the noise reduction
Through-hole (10) diameter is 4mm, and center between the noise reduction through-hole (10) and noise reduction through-hole (10) is away from for 6mm.
3. a kind of multi-cylinder diesel engine air inlet pipe with silencer according to claim 1, it is characterised in that: the air inlet
Mouth (7), blow vent (9), hush pipe (5), corrugated tube (4), metal knitted pipe (2) and hollow double-walled hush pipe (1) are all round.
4. a kind of multi-cylinder diesel engine air inlet pipe with silencer according to claim 1, it is characterised in that: the water conservancy diversion
Block (6) is taper.
5. a kind of multi-cylinder diesel engine air inlet pipe with silencer according to claim 1, it is characterised in that: the waveform
The diameter for managing (4) is twice of hush pipe (5) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822269424.4U CN209483513U (en) | 2018-12-29 | 2018-12-29 | A kind of multi-cylinder diesel engine air inlet pipe with silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822269424.4U CN209483513U (en) | 2018-12-29 | 2018-12-29 | A kind of multi-cylinder diesel engine air inlet pipe with silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483513U true CN209483513U (en) | 2019-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822269424.4U Active CN209483513U (en) | 2018-12-29 | 2018-12-29 | A kind of multi-cylinder diesel engine air inlet pipe with silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520569A (en) * | 2021-06-26 | 2021-10-22 | 合肥德易电子有限公司 | Cavity smoke eliminating device for abdominal operation |
-
2018
- 2018-12-29 CN CN201822269424.4U patent/CN209483513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520569A (en) * | 2021-06-26 | 2021-10-22 | 合肥德易电子有限公司 | Cavity smoke eliminating device for abdominal operation |
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