CN204900119U - Engine intake manifold way and use air intake system and passenger train of this air inlet pipeline - Google Patents
Engine intake manifold way and use air intake system and passenger train of this air inlet pipeline Download PDFInfo
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- CN204900119U CN204900119U CN201520483130.5U CN201520483130U CN204900119U CN 204900119 U CN204900119 U CN 204900119U CN 201520483130 U CN201520483130 U CN 201520483130U CN 204900119 U CN204900119 U CN 204900119U
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- suction tude
- air inlet
- air
- mixing chamber
- intake pipe
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Abstract
The utility model relates to an engine intake manifold way and use air intake system and passenger train of this air inlet pipeline. The air inlet pipeline is including the mixing chamber that has air inlet and gas outlet, the air inlet intercommunication has first intake pipe and second intake pipe, has the length difference between first intake pipe and the second intake pipe, the value of length difference is ( lambda / 2) N, and wherein lambda showes the wavelength of noise ripples in first intake pipe and the second intake pipe, and N showes the odd number to make in two intake pipe energy of pneumatic noise offset mutually in the mixing chamber. Because the length of two intake pipe is different, two strands of air currents that correspond produce the noise of different frequencies, establish the length difference of two intake pipe into designated value, utilize the wave interference phenomenon, make the energy of the pneumatic noise in first intake pipe and the second intake pipe offset mutually in the mixing chamber, have reduced the noise intensity of air current production in the engine intake manifold way, finally lighten the noise pollution problem of vehicle, have promoted the vehicle quality.
Description
Technical field
The utility model relates to a kind of engine charge pipeline and uses gas handling system and the passenger vehicle of this air inlet pipeline.
Background technique
The gas handling system of existing bus engine as shown in Figure 1, the suction tude that this gas handling system comprises air inlet box 1 ', air-strainer 6 ' and is connected between air inlet box 1 ' and air-strainer 6 ', intake process is: ambient air is inhaled into air inlet box, enter air-strainer from air inlet box by suction tude, be sent to motor through air-strainer filtered air.The noise that in this engine aspirating system, in suction tude, air-flow produces is comparatively large, is one of main source of coach noise pollution.
Model utility content
The purpose of this utility model is that providing a kind of can reduce the engine charge pipeline of induction noise and use gas handling system and the passenger vehicle of this air inlet pipeline.
For achieving the above object, the technological scheme of engine charge pipeline is: described air inlet pipeline comprises the air mixing chamber with suction port and air outlet, described suction port is communicated with the first suction tude and the second suction tude, length difference is there is between first suction tude and the second suction tude, the value of described length difference is (λ/2) * N, wherein λ represents the wavelength of noise waves in the first suction tude and the second suction tude, and N represents odd number, offsets in air mixing chamber to make the energy of pneumatic noise in two suction tude
Described suction port comprises the first import and the second import that connect the first suction tude and the second suction tude respectively, and air mixing chamber is threeway box structure.
Described air inlet pipeline also comprises air inlet box, and air inlet box comprises the first outlet and the second outlet that connect the first suction tude and the second suction tude respectively.
Described air mixing chamber and air inlet box are between left and right every setting, described first import and the second import are all positioned on the right flank of air mixing chamber, one during described first outlet and second exports is positioned on the left surface of air inlet box, another is positioned on the side vertical with left surface of air inlet box, and one longer in the first suction tude and the second suction tude is connected between air mixing chamber and air inlet box in " second " font.
The technological scheme of the gas handling system of use air inlet pipeline is: gas handling system comprises air-strainer and air inlet pipeline, described air inlet pipeline comprises the air mixing chamber with suction port and air outlet, described suction port is communicated with the first suction tude and the second suction tude, length difference is there is between first suction tude and the second suction tude, the value of described length difference is (λ/2) * N, wherein λ represents the wavelength of noise waves in the first suction tude and the second suction tude, N represents odd number, offsets in air mixing chamber to make the energy of pneumatic noise in two suction tude.
Described suction port comprises the first import and the second import that connect the first suction tude and the second suction tude respectively, and air mixing chamber is threeway box structure.
Described air inlet pipeline also comprises air inlet box, and air inlet box comprises the first outlet and the second outlet that connect the first suction tude and the second suction tude respectively.
Described air mixing chamber and air inlet box are between left and right every setting, described first import and the second import are all positioned on the right flank of air mixing chamber, one during described first outlet and second exports is positioned on the left surface of air inlet box, another is positioned on the side vertical with left surface of air inlet box, and one longer in the first suction tude and the second suction tude is connected between air mixing chamber and air inlet box in " second " font.
The technological scheme of the passenger vehicle of use air inlet pipeline is: passenger vehicle comprises motor, air-strainer and engine charge pipeline, described air inlet pipeline comprises the air mixing chamber with suction port and air outlet, described suction port is communicated with the first suction tude and the second suction tude, length difference is there is between first suction tude and the second suction tude, the value of described length difference is (λ/2) * N, wherein λ represents the wavelength of noise waves in the first suction tude and the second suction tude, N represents odd number, offsets in air mixing chamber to make the energy of pneumatic noise in two suction tude.
Described suction port comprises the first import and the second import that connect the first suction tude and the second suction tude respectively, and air mixing chamber is threeway box structure.
Described air inlet pipeline also comprises air inlet box, and air inlet box comprises the first outlet and the second outlet that connect the first suction tude and the second suction tude respectively.
Described air mixing chamber and air inlet box are between left and right every setting, described first import and the second import are all positioned on the right flank of air mixing chamber, one during described first outlet and second exports is positioned on the left surface of air inlet box, another is positioned on the side vertical with left surface of air inlet box, and one longer in the first suction tude and the second suction tude is connected between air mixing chamber and air inlet box in " second " font.
The beneficial effects of the utility model are: adopt the air mixing chamber with suction port, suction port is communicated with the first suction tude and the second suction tude, realize two-tube air inlet, because the length of two suction tude is different, two strands of corresponding air-flows produce the noise of different frequency, the length difference of two suction tude is set as (λ/2) * N, wherein λ represents the wavelength of noise waves in the first suction tude and the second suction tude, N represents odd number, utilize the interference phenomenon of ripple, the energy of the pneumatic noise in the first suction tude and the second suction tude is offseted in air mixing chamber, reduce the noise intensity that in engine charge pipeline, air-flow produces, finally alleviate the problem of noise pollution of vehicle, improve automotive quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the engine aspirating system of existing passenger vehicle;
Fig. 2 is the plan view of the specific embodiment of the engine aspirating system of the utility model passenger vehicle;
Fig. 3 is the right elevation of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, mode of execution of the present utility model is described further.
Passenger vehicle specific embodiment of the present utility model, passenger vehicle comprises motor and engine aspirating system, as shown in Figure 2 to Figure 3, the air inlet pipeline that this gas handling system comprises air-strainer 6 and is communicated with air-strainer 6, air inlet pipeline comprises the spaced air mixing chamber 4 in left and right and air inlet box 1, the left surface of air inlet box 1 is provided with the first outlet 11, the leading flank of air inlet box 1 is provided with the second outlet 12, the right flank of air mixing chamber 4 and the left surface of air inlet box 1 staggered relatively, air mixing chamber 4 is provided with suction port and air outlet 43, air mixing chamber is threeway box structure, suction port comprises the first import 41 and the second import 42 be arranged on the right flank of air mixing chamber, the first suction tude 2 and the second suction tude 3 has been arranged in parallel between air inlet box 1 and air mixing chamber 4, the two ends of the first suction tude 2 are communicated with the first outlet 11 and the first import 41 respectively, the two ends of the second suction tude 3 are communicated with the second outlet 12 and the second import 42 respectively, the air outlet 43 of air mixing chamber 4 is connected by total steam outlet pipe 5 with between air-strainer 6, the length L of the first suction tude 2
2with the length L of the second suction tude 3
3difference, the difference of two intake manifold lengths is length difference L(L=L
3-L
2).Utilize the interference phenomenon of ripple, the two train wave superpositions that namely frequency is identical, make the vibration in some region strengthen, the vibration weakening in some region.Because of two train waves that two wave sources of same frequency produce in same medium, wavelength is identical, and crest and trough meet place's vibration weakening, it can thus be appreciated that certain o'clock is odd-multiple of half wavelength to the distance of two wave sources, then the vibration of this point weakens.When air-flow in the first suction tude 2 and the second suction tude 3 arrives in air mixing chamber 4 respectively, because the length of two suction tude is different, two strands of corresponding air-flows produce the noise of different frequency, the length difference L of the first suction tude 2 and the second suction tude 3 gets particular value, length difference is made to meet L=(λ/2) * N, λ represents the wavelength of noise waves, N represents odd number, the energy of the noise of two different frequencies is cancelled out each other, noise intensity significantly reduces, thus propagate into extraneous noise reduction, compared with the gas handling system of existing single tube air inlet, do not reducing air input of engine by air with under the prerequisite meeting motor output, realize the object that the pneumatic noise in gas handling system is reduced, reach entire car denoise effect.
In intake process, as shown in Figure 2, air-flow flows along the shown direction of arrow, first, ambient air is inhaled in air inlet box 1, and jointly enters air mixing chamber 4, after converging in air mixing chamber 4 from first of air inlet box 1 the outlet 11 and the second outlet 12 along different the first suction tude 2 of length and the second suction tude 3 respectively, enter in air-strainer 6 by total steam outlet pipe 5, the air after final filtration is admitted to motor for it.
In the present embodiment, between the left surface that first suction tude 2 is connected to air inlet box 1 staggered relatively and the right flank of air mixing chamber 4, longer suction tude second suction tude 3 is connected between the left surface of air inlet box 1 and the leading flank of air mixing chamber 4 in " second " font, be convenient to lay two admission line, save taking up room of air inlet pipeline.
In other embodiments, can also be arranged on the same side of air inlet box by the first outlet and the second outlet, longer suction tude adopts in " U " type or the flexible pipe of " S " type also can be connected between air inlet box and air mixing chamber.
In other embodiments, the suction port of air mixing chamber also can be made up of plural import, makes every two imports be one group and connects first, second suction tude; Suction port can also arrange an import, also can be connected in parallel the first suction tude and the second suction tude at inlet's connecting tee joint.
In other embodiments, air inlet box can not also be set, directly air inlet from suction tude.
The structure of engine charge pipeline of the present utility model is identical with the structure of the air inlet pipeline in above-described embodiment, does not repeat them here.
The structure of engine aspirating system of the present utility model is identical with the structure of the gas handling system in above-described embodiment, does not repeat them here.
Claims (9)
1. engine charge pipeline, it is characterized in that: described air inlet pipeline comprises the air mixing chamber with suction port and air outlet, described suction port is communicated with the first suction tude and the second suction tude, length difference is there is between first suction tude and the second suction tude, the value of described length difference is (λ/2) * N, wherein λ represents the wavelength of noise waves in the first suction tude and the second suction tude, and N represents odd number, offsets in air mixing chamber to make the energy of pneumatic noise in two suction tude.
2. engine charge pipeline according to claim 1, is characterized in that: described suction port comprises the first import and the second import that connect the first suction tude and the second suction tude respectively, and air mixing chamber is threeway box structure.
3. engine charge pipeline according to claim 1, is characterized in that: described air inlet pipeline also comprises air inlet box, and air inlet box comprises the first outlet and the second outlet that connect the first suction tude and the second suction tude respectively.
4. engine charge pipeline according to claim 3, it is characterized in that: described air mixing chamber and air inlet box are between left and right every setting, described first import and the second import are all positioned on the right flank of air mixing chamber, one during described first outlet and second exports is positioned on the left surface of air inlet box, another is positioned on the side vertical with left surface of air inlet box, and one longer in the first suction tude and the second suction tude is connected between air mixing chamber and air inlet box in " second " font.
5. use the engine aspirating system of air inlet pipeline, comprise air-strainer and air inlet pipeline, it is characterized in that: described air inlet pipeline comprises the air mixing chamber with suction port and air outlet, described suction port is communicated with the first suction tude and the second suction tude, length difference is there is between first suction tude and the second suction tude, the value of described length difference is (λ/2) * N, wherein λ represents the wavelength of noise waves in the first suction tude and the second suction tude, N represents odd number, offsets in air mixing chamber to make the energy of pneumatic noise in two suction tude.
6. engine aspirating system according to claim 5, is characterized in that: described suction port comprises the first import and the second import that connect the first suction tude and the second suction tude respectively, and air mixing chamber is threeway box structure.
7. engine aspirating system according to claim 5, is characterized in that: described air inlet pipeline also comprises air inlet box, and air inlet box comprises the first outlet and the second outlet that connect the first suction tude and the second suction tude respectively.
8. engine aspirating system according to claim 7, it is characterized in that: described air mixing chamber and air inlet box are between left and right every setting, described first import and the second import are all positioned on the right flank of air mixing chamber, one during described first outlet and second exports is positioned on the left surface of air inlet box, another is positioned on the side vertical with left surface of air inlet box, and one longer in the first suction tude and the second suction tude is connected between air mixing chamber and air inlet box in " second " font.
9. use the passenger vehicle of engine charge pipeline, comprise motor, air-strainer and engine charge pipeline, it is characterized in that: described engine charge pipeline is the engine charge pipeline in Claims 1-4 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483130.5U CN204900119U (en) | 2015-07-07 | 2015-07-07 | Engine intake manifold way and use air intake system and passenger train of this air inlet pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483130.5U CN204900119U (en) | 2015-07-07 | 2015-07-07 | Engine intake manifold way and use air intake system and passenger train of this air inlet pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900119U true CN204900119U (en) | 2015-12-23 |
Family
ID=54922301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520483130.5U Expired - Fee Related CN204900119U (en) | 2015-07-07 | 2015-07-07 | Engine intake manifold way and use air intake system and passenger train of this air inlet pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457777A (en) * | 2017-02-17 | 2018-08-28 | 郑州宇通客车股份有限公司 | A kind of air inlet box and gas handling system and vehicle |
| CN109424479A (en) * | 2017-08-31 | 2019-03-05 | 郑州宇通客车股份有限公司 | Engine aspirating system and vehicle |
-
2015
- 2015-07-07 CN CN201520483130.5U patent/CN204900119U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457777A (en) * | 2017-02-17 | 2018-08-28 | 郑州宇通客车股份有限公司 | A kind of air inlet box and gas handling system and vehicle |
| CN108457777B (en) * | 2017-02-17 | 2023-09-29 | 宇通客车股份有限公司 | Air inlet box, air inlet system and vehicle |
| CN109424479A (en) * | 2017-08-31 | 2019-03-05 | 郑州宇通客车股份有限公司 | Engine aspirating system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190707 |