CN105584352B - A kind of piggyback pod air channel structure of engineering truck, piggyback pod and engineering truck - Google Patents
A kind of piggyback pod air channel structure of engineering truck, piggyback pod and engineering truck Download PDFInfo
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- CN105584352B CN105584352B CN201510326066.4A CN201510326066A CN105584352B CN 105584352 B CN105584352 B CN 105584352B CN 201510326066 A CN201510326066 A CN 201510326066A CN 105584352 B CN105584352 B CN 105584352B
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Abstract
The present invention relates to a kind of piggyback pod air channel structure of engineering truck, piggyback pod and engineering truck, the piggyback pod air channel structure of wherein engineering truck includes air inlet, air outlet and the air channel being located between air inlet and air outlet being arranged on piggyback pod, air channel is provided with the chamber of at least one base closed, at least one side of chamber offers aperture, enable chamber to absorb the noise produced by associated components within from piggyback pod, and at least one side with aperture can stop that the air stream in air channel enters chamber.The present invention passes through the chamber that setting in air channel offers aperture, can absorb noise produced by the associated components within from described piggyback pod, effectively reduces the machine external noise of piggyback pod；In addition, offering the side in aperture, being prevented from the generation of piggyback pod internal vortex, reducing the windage of air flow field in air channel, optimize the air flow field within piggyback pod.
Description
Technical field
The present invention relates to technical field of engineering machinery, the piggyback pod air channel structure of particularly a kind of engineering truck, piggyback pod
And engineering truck.
Background technology
Economic development and environment protection has become the important topic in global range, and countries in the world are formulated one after another and promulgated method
Laws ＆ Regulations come environmental protection, pollution administration.Noise is the third-largest polluter being only second to water and air pollution, dirty in various noises
In dye, construction noise pollution is in first place, and construction noise pollution is produced using engineering machinery in a large number.To engineering machine
It is the important step advocated environmental protection, build a harmonious society that tool product carries out vibration and noise reducing research.And Foreign Engineering Machinery enterprise
Industry is persistently furtherd investigate to vibration noise, has led the development of this art, constantly releases the high-quality product of low noise, no
Disconnected promotion government promulgates new legislation to improve market access threshold, establishing techniques and market barrier.In the face of more and more fierce city
Field competition, China's engineering machinery only constantly carries out technological innovation, improves China's engineering machinery noise reduction technology level, ability
Advantage is accounted for obtain in international competition.
Cooling fan is originated as the main noise of engineering machinery, or even maximum noise source, is that engineering machinery is noise control
One of main bugbear, due to reasons such as cost, technology, technological limit is nearly reached to the Optimized Matching of fan itself, then enters
Sector-style fan Research of Noise Reduction itself is extremely difficult, and scientific research cost is very high, is therefore being optimized improvement in itself to cooling fan
While, fan stack structure is carried out with noise-reducing design becomes more direct effective noise control method.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, it mainly includes hood 101 to the piggyback pod air channel structure of prior art
With piggyback pod internal structure, hood 101 mainly includes side door 102, both sides air inlet 103, upper end air inlet 104, rear end
Air outlet 105 and thermovent 106, piggyback pod internal structure includes electromotor 107, acoustic filter 108, cooling fan 109, wind scooper
110th, radiator 111 and vehicle frame 112, wherein hood 101 are arranged on vehicle frame 112, and thermovent 106 is punch structure, position
In hood 101 top, the upper end of electromotor 107, the both sides air inlet 103 on hood 101 and upper end air inlet 104
It is similarly punch structure, forms the air inlet of cooling fan, rear end air outlet 105 is punch structure, after hood 101
Portion.Both sides air inlet 103 from piggyback pod lower ending opening, hood 101 for the air and upper end air inlet 104 enter power
Cabin, then sucks cooling fan 109, by the drain of wind scooper 110, through radiator 111, finally from rear end air outlet 105
Discharge.
Although prior art can realize the effect of diversion air very well, piggyback pod Duct design is excessively simple, noise
Can by air inlet and air outlet direct radiation out, internal sound-absorbing material nor play optimum efficiency, inside lacks effectively
Noise elimination structure so that the sound insulation and noise reducing effect of hood is poor, do not design drain measure inside piggyback pod, internal easily shape
Become vortex, thus the hot-air increasing near windage, and electromotor can be sucked radiator by fan, reduce the radiating of cooling system
Effect.
Content of the invention
The invention provides a kind of piggyback pod air channel structure of engineering truck, piggyback pod and engineering truck, can effectively drop
The outside engine noise of low engineering truck.
For achieving the above object, the invention provides a kind of piggyback pod air channel structure of engineering truck includes being arranged on power
Air inlet on cabin, air outlet and the air channel being located between described air inlet and described air outlet, described air channel is provided with least one
The chamber of individual base closed, at least one side of described chamber offers aperture so that described chamber can absorb from institute
State noise produced by the associated components within piggyback pod, and at least one side described with described aperture can stop
Air stream in described air channel enters described chamber.
Further, described chamber includes first chamber, and described first chamber is arranged at the bottom of described piggyback pod.
Further, it is provided with the air cooling equipment for producing air stream, the lower end of described air cooling equipment in described air channel
It is provided with described first chamber, be provided with the first perforated plate between described first chamber and described air cooling equipment.
Further, described chamber includes second chamber, and described second chamber is adjacent to described air outlet setting.
Further, at least side of described air outlet is provided with perforated plate, and described perforated plate is outer with described piggyback pod
Hull shape becomes described second chamber.
Further, the inwall of described chamber is pasted with sound-absorbing material.
Further, described air inlet is provided with baffle plate, is passed through described with the noise preventing from producing in described piggyback pod
Air inlet radiate.
Further, described air inlet includes upper end air inlet and the setting being arranged at the shell upper end of described piggyback pod
In left side air inlet and the right side air inlet of described shell both sides, in described upper end air inlet, described left side air inlet and described
It is provided with baffle plate in the air inlet of right side at least one.
Further, described baffle plate is in tilted layout into makes to be formed V-type intake air way between described air inlet and described baffle plate.
Further, described upper end air inlet, described left side air inlet and/or described right side air inlet for opening shape are
The shutter of V-type, the opening of wherein said upper end air inlet to rear ramp, described left side air inlet and/or described right side
The opening of air inlet is obliquely upward.
Further, described air outlet is the shutter of V-type for opening shape, and the opening of described air outlet is on tiltedly
Side.
For achieving the above object, present invention also offers a kind of piggyback pod, including the piggyback pod wind of above-mentioned engineering truck
Road structure.
For achieving the above object, present invention also offers a kind of engineering truck, including above-mentioned piggyback pod.
Based on technique scheme, the present invention passes through the air channel being formed between the air inlet on piggyback pod and air outlet
The interior chamber that at least one base closed is set, and offer aperture at least one side of chamber, this chamber can absorb
Noise produced by associated components within from described piggyback pod, effectively reduces the machine external noise of piggyback pod；In addition, offering
The side in aperture, is prevented from the generation of piggyback pod internal vortex, reduces the windage of air flow field in air channel, optimizes in piggyback pod
The air flow field in portion.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of left view schematic diagram of hood in prior art.
Fig. 2 is the schematic top plan view of hood in Fig. 1.
Fig. 3 is the front-view schematic diagram of hood in Fig. 1.
Fig. 4 is a kind of internal structure schematic diagram of piggyback pod in prior art.
Fig. 5 is the general structure schematic diagram of one embodiment of piggyback pod of the present invention.
Fig. 6 is the structural representation of one embodiment of piggyback pod air channel structure of engineering truck of the present invention.
Fig. 7 is the structural representation of piggyback pod another embodiment of air channel structure of engineering truck of the present invention.
Fig. 8 is the internal structure schematic diagram of one embodiment of piggyback pod of the present invention.
Fig. 9 is the schematic top plan view of one embodiment of piggyback pod of the present invention.
Figure 10 is the left view schematic diagram of one embodiment of piggyback pod of the present invention.
Each in figure label and the corresponding relation of title are above：
101- hood, 102- side door, 103- both sides air inlet, 104- upper end air inlet, 105- rear end air outlet,
106- thermovent, 107- electromotor, 108- acoustic filter, 109- cooling fan, 110- wind scooper, 111- radiator, 112- vehicle frame；
1- side door, 2- thermovent, 3- upper end air inlet, air inlet on the left of 401-, air inlet on the right side of 402-, 5- air outlet,
Perforated plate on the upside of 6- air outlet, perforated plate on the left of 701- air outlet, perforated plate on the right side of 702- air outlet, side perforation under 8- air outlet
Plate, side cavity under 9-, 10- upper end air inlet baffle plate, air inlet baffle plate on the left of 1101-, air inlet baffle plate on the right side of 1102-, 12-
One chamber, 13- first perforated plate, 14- power part, 15- first baffle, 16- air cooling equipment, 17- heat-exchanger rig, 18- second
Baffle plate, 19- piggyback pod lower baffle plate, 100- shell, 200- piggyback pod.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely retouched
State.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this
Bright embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
In describing the invention it is to be understood that term " " center ", " horizontal ", " longitudinal ", "front", "rear",
"left", "right", " on ", D score, " vertical ", " level ", " top ", " bottom ", " interior ", the orientation of instruction such as " outward " or position relationship be
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the scope of the present invention.
In order to solve, the outside radiated noise of hood in prior art is larger and internal easily generation of piggyback pod is vortexed
Problem, the present invention proposes a kind of piggyback pod air channel structure of engineering truck, including the air intake being arranged on piggyback pod 200
Mouth, air outlet 5 and the air channel being located between described air inlet and described air outlet 5, described air channel is provided with least one and substantially seals
The chamber closing, at least one side of described chamber offers aperture so that described chamber can absorb from described piggyback pod
Noise produced by associated components within 200, and at least one side described with described aperture can stop described
Air stream in air channel enters described chamber.
Above-mentioned chamber base closed, wherein " base closed " are meant that this chamber is by the baffle plate of a piece or more than a piece
The chamber of the closing being surrounded, but because at least one side in this chamber is further opened with aperture, so this chamber
It is not the closing in complete meaning, therefore say that chamber is base closed here.
The present invention passes through to arrange at least one base in the air channel that formed between the air inlet on piggyback pod and air outlet
The chamber of this closing, and offer aperture at least one side of chamber, this chamber can absorb in described piggyback pod
Noise produced by the associated components in portion, effectively reduces the machine external noise of piggyback pod；In addition, offering the side in aperture, can
Prevent the generation of piggyback pod internal vortex, reduce the windage of air flow field in air channel, optimize the air flow field within piggyback pod.
The set location of above-mentioned chamber can have multiple choices, as long as be capable of it acting on.This chamber can set
It is placed in any corner in air channel, as long as at least side of this chamber offers aperture, and this aperture can receive automatically
The noise in power cabin, and open up the air that at least side in aperture can stop in described air channel simultaneously and enter chamber to reduce
The generation of the air-swirl within described piggyback pod.
In a preferred embodiment, described chamber includes first chamber 12, and described first chamber 12 can be arranged at
The bottom of described piggyback pod 200.The benefit that chamber is arranged at bottom is both to have taken the space in air channel, also will not be due to
Increased chamber and affect in air channel, the air flow of air inlet or air outlet, and be arranged at the suction that bottom also allows for noise
Receive.In addition, this chamber is by the bottom lock of piggyback pod, can prevent outside air from passing through piggyback pod lower openings and enter air channel
Interior it is also possible to prevent noise from piggyback pod bottom to external radiation, reduce noise.
The form that implements that chamber is arranged at bottom has many kinds it is preferable that being provided with for producing in described air channel
The air cooling equipment 16 of air stream, the lower end of described air cooling equipment 16 is provided with described first chamber 12, in described first chamber 12
It is provided with the first perforated plate 13 and described air cooling equipment 16 between.Power part 14 can also be provided with described air channel, be used for
Produce the air cooling equipment 16 of air stream and the heat-exchanger rig 17 for the air stream in described air channel is carried out with heat exchange, described air-cooled
The lower end of device 16 is provided with the first perforated plate 13, surrounds first chamber 12 by described first perforated plate 13 and polylith baffle plate.
Above-mentioned polylith baffle plate is meant that one piece or more than one piece.In above-described embodiment, the chamber being arranged at bottom is permissible
Surrounded by the first perforated plate 13 and polylith baffle plate being arranged at air cooling equipment 16 lower end or：As shown in figure 8, in power
It is provided with first baffle 15 between part 14 and air cooling equipment 16, and the lower end of air cooling equipment 16 is provided with the first perforated plate 13,
First chamber 12 is by the first perforated plate 13, first baffle 15, piggyback pod lower baffle plate 19 and right shell body (not shown) and car
Frame surrounds jointly.The effect of wherein first baffle 15 is to prevent the hot-air near power part 14 from being sucked by air cooling equipment 16.
First perforated plate 13 surface is equipped with multiple apertures, can absorption of noise well, the work reaching noise elimination noise reduction and optimizing flow field
With.
In another preferred embodiment, described chamber includes second chamber, described second chamber be adjacent to described in go out
Air port 5 is arranged.The benefit being arranged at air outlet 5 is to prevent the noise producing in piggyback pod 200 from radiateing by air outlet 5.
The form that implements that chamber is arranged at air outlet has many kinds it is preferable that at least side of described air outlet 5 sets
It is equipped with perforated plate, described perforated plate forms described second chamber with the shell 100 of described piggyback pod 200.It is highly preferred that in heat exchange
It is also provided with second baffle 18, second baffle 18 can prevent air outlet between the shell 100 of device 17 and piggyback pod 200
5 hot-air is sucked heat-exchanger rig 17 by air cooling equipment 16, reduces radiating effect.Thus, second chamber can be by being arranged at air-out
The mouth 5 at least perforated plate of side, second baffle 18 and shells 100 surround jointly.
Preferably, as shown in fig. 7, the surrounding in described air outlet 5 is respectively provided with perforated plate 6, air outlet on the upside of air outlet
Perforated plate 8 on the downside of left side perforated plate 701, perforated plate 702 and air outlet on the right side of air outlet, that is, pass through air outlet 5 in air channel
Position arranges perforated plate to realize the effect of noise elimination noise reduction, as shown in fig. 7, all offering multiple holes on the surface of each perforated plate
Mouthful, can absorption of noise well.
In above-described embodiment, each perforated plate can be arranged directly on the position of air outlet 5 on the shell, then by
Polylith baffle group becomes chamber；The position having a segment distance apart from air outlet 5 can also be arranged on, then by side perforation on air outlet
On the right side of perforated plate 701 on the left of plate 6, air outlet, air outlet, perforated plate 702 and shell 100 can surround at least three chambers；Separately
Outward, second chamber is in addition to above three chamber, can also include being surrounded by perforated plate on the downside of air outlet 8 and polylith baffle plate
Lower side cavity 9, these chambers all can be effectively prevented noise to external radiation, reduce machine external noise, and optimize inner air
Flow field.In addition, first chamber 12 and lower side cavity 9 are separate two chambers, passed through with the hot-air preventing air outlet 5
Air cooling equipment 16 sucks heat-exchanger rig 17, reduces radiating effect.
In order to strengthen the effect of sound insulation and noise reducing, the inwall of described chamber can be pasted with sound-absorbing material.In chamber
Pasting sound-absorbing material on wall is very simple and convenient noise elimination means, and the selection as deadener can have multiple choices, can
To select suitable material according to actual needs, as long as corresponding effect can be reached.
In order to further enhance the effect of sound insulation and noise reducing, baffle plate can also be set in described air inlet, as shown in fig. 6,
It is radiate by described air inlet with the noise preventing from producing in described piggyback pod 200.
Preferably, described air inlet include being arranged at the upper end air inlet 3 of shell 100 upper end of described piggyback pod 200 with
And it is arranged at left side air inlet 401 and the right side air inlet 402 of described shell 100 both sides, in described upper end air inlet 3, described
It is provided with baffle plate in left side air inlet 401 and described right side air inlet 402 at least one.
The effect of above-mentioned baffle plate mainly carries out noise reduction to the noise within piggyback pod, prevents associated components such as wind in air channel
The noise that device for cooling 16 produces passes through above three air inlet to external radiation, causes larger machine external noise.
In order to noise can either be prevented in air channel to external radiation, and it can be avoided that in air channel air flow be obstructed, can be by
Described baffle plate is in tilted layout into makes to be formed V-type intake air way between described air inlet and described baffle plate.As shown in figure 9, upper end air intake
Mouth baffle plate 10, left side air inlet baffle plate 1101 and right side air inlet baffle plate 1102 are in tilted layout, so that described upper end air inlet 3 He
Between described upper end air inlet baffle plate 10, between described left side air inlet 401 and described left side air inlet baffle plate 1101, the described right side
Form V-type intake air way between side air inlet 402 and described right side air inlet baffle plate 1102.
In order to realize more preferable noise reduction, described upper end air inlet 3, described left side air inlet 401 and/or described right side
Air inlet 402 can be the shutter that opening shape is V-type, and the opening of wherein said upper end air inlet 3 is to rear ramp, institute
State left side air inlet 401 and/or described right side air inlet 402 opening obliquely upward.
In addition, described air outlet 5 can also be the shutter that opening shape is V-type, the opening of described air outlet 5 to
Oblique upper.
With reference to specific embodiment, the process of realizing of the piggyback pod air channel structure of engineering truck of the present invention is carried out in detail
Describe in detail bright：
As shown in figure 9, a preferred embodiment of the piggyback pod air channel structure for engineering truck of the present invention.This embodiment
In, as shown in figure 5, the both sides of shell 100 are provided with side door 1, upper end is provided with thermovent 2.First, as shown in Figure 10, air
Entered by the upper end air inlet 3 being designed as shutter form and both sides air inlet 401,402, then keep off in upper end air inlet
Under the water conservancy diversion of plate 10, both sides air inlet baffle plate 1101,1102 and first baffle 15, enter air cooling equipment 16 through V-type path cold
But fan, is then passed through heat-exchanger rig 17 radiator and takes away heat, then on the left of by perforated plate on the upside of air outlet 6, air outlet
Behind the rectangle exhaust passage of perforated plate 8 composition on the downside of perforated plate 702 and air outlet on the right side of perforated plate 701, air outlet, finally by designing
Air outlet 5 for shutter form is discharged.In addition, wearing on the upside of first perforated plate 13, air outlet of air channel indoor design
On the downside of perforated plate 702 and air outlet on the right side of perforated plate 701 on the left of orifice plate 6, air outlet, air outlet perforated plate 8 can be very good excellent
Change air flow field, reduce flow field windage, and the chamber that each perforated plate is formed, it is possible to achieve the effect of noise elimination noise reduction well
Really.
Based on the piggyback pod air channel structure of above-mentioned engineering truck, present invention also offers a kind of piggyback pod, including above-mentioned
Engineering truck piggyback pod air channel structure.
Based on above-mentioned piggyback pod, present invention also offers a kind of engineering truck, including above-mentioned piggyback pod.
By saying of multiple embodiments of piggyback pod air channel structure, piggyback pod and engineering truck to engineering truck of the present invention
Bright, it can be found that：
The piggyback pod air channel structure of engineering truck disclosed by the invention, has preferable sound insulation and noise reducing performance, the two of shell
Side and upper end arrange the baffle plate that can effectively stop noise from leaking, and are provided with the air outlet of shutter form in heat-exchanger rig rear end,
And the surrounding of air cooling equipment lower end and heat-exchanger rig outlet is designed as the noise elimination cavity configuration of perforated plate form, optimizes cooling
The air channel structure of system, in the case of not affecting windage in air channel, has carried out preferable sealing to air channel, and indoor design
Noise elimination cavity can be very good to absorb internal noise, makes the outside spoke of produced noise during the work such as power part, air cooling equipment
Penetrate and obtained effective control, the outside direct radiation of noise in suppression air channel.
In the surrounding setting noise elimination cavity configuration of air cooling equipment lower end and heat-exchanger rig outlet, the outside plate of noise elimination cavity is all using wearing
AND DEWATERING FOR ORIFICE STRUCTURE, makes to form obvious vortex inside air channel, optimizes the air flow field of inside, be conducive to the flowing of wind, with
When play good soundproof effect.
In addition, by the application test on land leveller, the piggyback pod air channel structure of the engineering truck of the present invention can make
Outside engine noise declines more than 2dBA, and this apparatus structure is simply it is easy to processing and manufacturing, with low cost, practical reliable, does not change
The overall installation form of shell, the noise that energy effective control air cooling equipment produces, prevent noise to external radiation.
The piggyback pod air channel structure of the engineering truck of the present invention can apply to, in various engineering machinery, be particularly well-suited to blow
The engineering truck of wind formula cooling system.
Finally it should be noted that：Above example is only not intended to limit in order to technical scheme to be described；To the greatest extent
Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood：Still
The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this
The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.
Claims (13)
1. a kind of piggyback pod air channel structure of engineering truck is it is characterised in that include the air intake being arranged on piggyback pod (200)
Mouth, air outlet (5) and the air channel being located between described air inlet and described air outlet (5), described air channel is provided with least one base
The chamber of this closing, at least one side of described chamber offers aperture so that described chamber can absorb from described dynamic
The internal noise produced by associated components in power cabin (200), and at least one side described with described aperture can hinder
The air stream kept off in described air channel enters described chamber.
2. the piggyback pod air channel structure of engineering truck according to claim 1 is it is characterised in that described chamber includes first
Chamber (12), described first chamber (12) is arranged at the bottom of described piggyback pod (200).
3. the piggyback pod air channel structure of engineering truck according to claim 2 is it is characterised in that be provided with described air channel
For producing the air cooling equipment (16) of air stream, the lower end of described air cooling equipment (16) is provided with described first chamber (12),
It is provided with the first perforated plate (13) between described first chamber (12) and described air cooling equipment (16).
4. the piggyback pod air channel structure of engineering truck according to claim 1 and 2 is it is characterised in that described chamber includes
Second chamber, described second chamber is adjacent to described air outlet (5) setting.
5. the piggyback pod air channel structure of engineering truck according to claim 4 is it is characterised in that described air outlet (5)
At least side is provided with perforated plate, and described perforated plate forms described second chamber with the shell (100) of described piggyback pod (200).
6. the piggyback pod air channel structure of engineering truck according to claim 1 is it is characterised in that on the inwall of described chamber
It is pasted with sound-absorbing material.
7. the piggyback pod air channel structure of engineering truck according to claim 1 is it is characterised in that described air inlet is arranged
There is baffle plate, radiate by described air inlet with the noise preventing from producing in described piggyback pod (200).
8. the piggyback pod air channel structure of engineering truck according to claim 7 is it is characterised in that described air inlet includes setting
It is placed in the upper end air inlet (3) of shell (100) upper end of described piggyback pod (200) and be arranged at described shell (100) both sides
Left side air inlet (401) and right side air inlet (402), described upper end air inlet (3), described left side air inlet (401) and
It is provided with baffle plate in described right side air inlet (402) at least one.
9. the piggyback pod air channel structure of engineering truck according to claim 7 is it is characterised in that described baffle plate is in tilted layout
Become to make to be formed between described air inlet and described baffle plate V-type intake air way.
10. the piggyback pod air channel structure of engineering truck according to claim 8 is it is characterised in that described upper end air inlet
(3), described left side air inlet (401) and/or described right side air inlet (402) they are the shutter of V-type for opening shape, its
Described in upper end air inlet (3) opening to rear ramp, described left side air inlet (401) and/or described right side air inlet (402)
Opening obliquely upward.
The piggyback pod air channel structure of 11. engineering trucks according to claim 1 is it is characterised in that described air outlet (5) is
Opening shape is the shutter of V-type, and the opening of described air outlet (5) is obliquely upward.
A kind of 12. piggyback pods are it is characterised in that include the piggyback pod wind of the engineering truck as described in any one of claim 1-11
Road structure.
A kind of 13. engineering trucks are it is characterised in that include piggyback pod as claimed in claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510326066.4A CN105584352B (en) | 2015-06-12 | 2015-06-12 | A kind of piggyback pod air channel structure of engineering truck, piggyback pod and engineering truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510326066.4A CN105584352B (en) | 2015-06-12 | 2015-06-12 | A kind of piggyback pod air channel structure of engineering truck, piggyback pod and engineering truck |
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| Publication Number | Publication Date |
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| CN105584352A CN105584352A (en) | 2016-05-18 |
| CN105584352B true CN105584352B (en) | 2017-03-08 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688424B1 (en) * | 1997-10-24 | 2004-02-10 | Komatsu Ltd. | Noise absorbing device and device for taking air into engine room of a construction machine |
| JP2003191758A (en) * | 2001-12-27 | 2003-07-09 | Hitachi Constr Mach Co Ltd | Cooling device for construction machine |
| CA2531066C (en) * | 2003-07-11 | 2012-09-18 | General Electric Company | Silencing equipment for an air-cooling assembly |
| JP2012040912A (en) * | 2010-08-17 | 2012-03-01 | Pacific Ind Co Ltd | Engine cover |
| CN202641364U (en) * | 2012-05-22 | 2013-01-02 | 长安大学 | Low noise engine compartment based on heat balance |
| CN103386933B (en) * | 2013-07-30 | 2015-07-15 | 郑州宇通客车股份有限公司 | Ventilation and noise reduction structure and electric motor coach |
| CN204161088U (en) * | 2014-09-25 | 2015-02-18 | 徐工集团工程机械股份有限公司 | Piggyback pod air channel structure and engineering truck |
| CN204895114U (en) * | 2015-06-12 | 2015-12-23 | 徐工集团工程机械股份有限公司 | Engineering vehicle's piggyback pod wind channel structure, piggyback pod and engineering vehicle |
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