CN105584352A - Air duct structure of engine compartment of construction vehicle, engine compartment and construction vehicle - Google Patents
Air duct structure of engine compartment of construction vehicle, engine compartment and construction vehicle Download PDFInfo
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- CN105584352A CN105584352A CN201510326066.4A CN201510326066A CN105584352A CN 105584352 A CN105584352 A CN 105584352A CN 201510326066 A CN201510326066 A CN 201510326066A CN 105584352 A CN105584352 A CN 105584352A
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Abstract
The invention relates to an air duct structure of an engine compartment of a construction vehicle, the engine compartment and the construction vehicle. The air duct structure of the engine compartment of the construction vehicle comprises air inlets, air outlets and air ducts, wherein the air inlets and the air outlets are formed in the engine compartment; the air ducts are positioned between the air inlets and the air outlets; each of the air ducts is provided with one or more chambers which are substantially closed, and orifices are formed in one or more side surfaces of the chambers, so that noise generated by associated components in the engine compartment can be absorbed by the chambers, and one or more side surface with the orifices can prevent air currents in the air ducts from entering the chambers. According to the air duct structure, the engine compartment and the industrial vehicle disclosed by the invention, the chambers with the orifices are arranged in the air ducts, so that the noises generated by the associated components in the engine compartment can be absorbed, and overboard noise of the engine compartment can be effectively reduced. In addition, the side surfaces with the orifices can prevent eddy currents form being generated in the engine compartments, so that the wind resistance of air current fields in the air ducts is reduced, and the air current fields in the engine compartments are optimized.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of piggyback pod wind of engineering truckRoad structure, 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 confusedConfusingly formulate and the regulation of enacting a law come protection of the environment, administer pollute. Noise is to be only second to water and skyThe third-largest pollution sources that gas pollutes, in various noise pollutions, construction noise pollution is in first place,And construction noise pollution is used engineering machinery in a large number and produces. Construction machinery product is enteredThe research of row vibration and noise reducing is the important step of advocating environmental protection, building a harmonious society. And it is externalMachinery Enterprises continues further investigation to vibration noise, has led the development of this art,Constantly release the high-quality product of low noise, constantly promote government and promulgate that new legislation is to improve marketAccess threshold, sets up technology and market barrier. In the face of more and more fierce market competition, ChinaEngineering machinery only has and constantly carries out technological innovation, improves China's engineering machinery noise reduction technology waterFlat, could in international competition, account for to obtain advantage.
Cooling fan is as the main noise source of engineering machinery, and even maximum noise source, is workOne of main bugbear of journey Control of Mechanical Noise, due to the reason such as cost, technology, to fan originallyThe Optimized Matching of body almost reaches technological limit, then it is very tired to carry out the Research of Noise Reduction of fan ownDifficulty, and scientific research cost is very high, therefore cooling fan itself is being optimized to the improved while,Fan air channel structure is carried out to noise-reducing design and become more directly effective noise control method.
The piggyback pod air channel structure of prior art as shown in Figure 1, Figure 2, Figure 3 and Figure 4, itMainly comprise hood 101 and piggyback pod internal structure, hood 101 mainly comprises sideDoor 102, both sides air inlet 103, upper end air inlet 104, rear end air outlet 105 and thermovent106, piggyback pod internal structure comprise engine 107, silencer 108, cooling fan 109,Wind scooper 110, radiator 111 and vehicle frame 112, wherein hood 101 is arranged on vehicle frameOn 112, thermovent 106 is punch structure, is positioned at hood 101 tops, engine 107Upper end, both sides air inlet 103 and upper end air inlet 104 on hood 101 are similarlyPunch structure, the air inlet of formation cooling fan, rear end air outlet 105 is punch structure, positionIn hood 101 rear portions. Air from piggyback pod lower ending opening, hood 101 twoSide air inlet 103 and upper end air inlet 104 enter piggyback pod, then suck cooling fan 109,By the drainage of wind scooper 110, through radiator 111, finally arrange from rear end air outlet 105Go out.
Although prior art can finely realize the effect of diversion air, piggyback pod Duct designToo simple, noise can directly radiate by air inlet and air outlet, inner sound-absorbing materialCan not bring into play optimum efficiency, inside lacks effective noise elimination structure, make hood everySound noise reduction is poor, and drainage measure is not designed in piggyback pod inside, the inner eddy current that easily forms,Thereby increase windage, and engine near hot-air can be sucked radiator by fan, reduce coldBut the radiating effect of system.
Summary of the invention
The invention provides a kind of piggyback pod air channel structure, piggyback pod and engineering truck of engineering truck, can effectively reduce the outside engine noise of engineering truck.
For achieving the above object, the invention provides a kind of piggyback pod air channel structure of engineering truckComprise air inlet, the air outlet being arranged on piggyback pod and be positioned at described air inlet and described air-outAir channel between mouthful, described air channel is provided with the chamber of at least one base closed, described chamberAt least one side opening is provided with aperture, and described chamber can be absorbed from described piggyback podThe noise that the associated components of portion produces, and with described at least one side in described apertureCan stop that the air stream in described air channel enters described chamber.
Further, described chamber comprises the first chamber, and described the first chamber is arranged at described movingThe bottom in power cabin.
Further, in described air channel, be provided with the air cooling equipment for generation of air stream, described inThe lower end of air cooling equipment is provided with described the first chamber, at described the first chamber and described air-cooled dressBetween putting, be provided with the first perforated plate.
Further, described chamber comprises the second chamber, described in described the second chamber is adjacent to, goes outAir port arranges.
Further, at least one side of described air outlet is provided with perforated plate, described perforated plate withThe shell of described piggyback pod forms described the second chamber.
Further, on the inwall of described chamber, be pasted with sound-absorbing material.
Further, described air inlet place is provided with baffle plate, produces preventing in described piggyback podNoise radiate by described air inlet.
Further, described air inlet comprises the upper end of the shell upper end that is arranged at described piggyback podAir inlet and be arranged at left side air inlet and the right side air inlet of described shell both sides, describedAt least one place in upper end air inlet, described left side air inlet and described right side air inlet is provided withBaffle plate.
Further, described baffle plate is in tilted layout into and makes shape between described air inlet and described baffle plateBecome V-type air inlet duct.
Further, described upper end air inlet, described left side air inlet and/or described right side air intakeMouthful be the opening shape shutter that is V-type, the opening of wherein said upper end air inlet is to tiltedlyRear, the opening of described left side air inlet and/or described right side air inlet obliquely upward.
Further, described air outlet is that opening shape is the shutter of V-type, described in go outThe opening in air port obliquely upward.
For achieving the above object, the present invention also provides a kind of piggyback pod, comprises above-mentioned engineeringThe piggyback pod air channel structure of vehicle.
For achieving the above object, the present invention also provides a kind of engineering truck, comprises above-mentioned movingPower cabin.
Based on technique scheme, the air inlet of the present invention by piggyback pod and air outlet itBetween the chamber of at least one base closed is set, and at least one at chamber in the air channel that formsIndividual side opening is provided with aperture, and this chamber can absorb the associated components from described piggyback pod insideThe noise producing, effectively reduces the machine external noise of piggyback pod; In addition, offer the side in apertureFace, can prevent the generation of piggyback pod internal vortex, reduces the windage of air flow field in air channel,The air flow field of inside, optimizing power cabin.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the applicationA part, schematic description and description of the present invention is used for explaining the present invention, not structureBecome inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is that in prior art, schematic diagram is looked on an a kind of left side of hood.
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 the internal structure schematic diagram of a kind of piggyback pod in prior art.
Fig. 5 is the general structure schematic diagram of an embodiment of piggyback pod of the present invention.
Fig. 6 is the structural representation of an embodiment of piggyback pod air channel structure of engineering truck of the present inventionFigure.
Fig. 7 is that the structure of another embodiment of piggyback pod air channel structure of engineering truck of the present invention is shownIntention.
Fig. 8 is the internal structure schematic diagram of an embodiment of piggyback pod of the present invention.
Fig. 9 is the schematic top plan view of an embodiment of piggyback pod of the present invention.
Figure 10 is that schematic diagram is looked on a left side of an embodiment of piggyback pod of the present invention.
The corresponding relation of each number in the figure and title is above:
101-hood, 102-side door, 103-both sides air inlet, 104-upper end air inlet,105-rear end air outlet, 106-thermovent, 107-engine, 108-silencer, 109-cooling airFan, 110-wind scooper, 111-radiator, 112-vehicle frame;
1-side door, 2-thermovent, 3-upper end air inlet, 401-left side air inlet, 402-enters on right sideAir port, 5-air outlet, 6-air outlet upside perforated plate, 701-air outlet left side perforated plate, 702-Air outlet right side perforated plate, 8-air outlet downside perforated plate, side cavity under 9-, 10-upper end air intakeMouth baffle plate, 1101-left side air inlet baffle plate, 1102-right side air inlet baffle plate, 12-the first chamber,13-the first perforated plate, 14-power part, 15-the first baffle plate, 16-air cooling equipment, 17-heat exchangeDevice, 18-second baffle, 19-piggyback pod lower baffle plate, 100-shell, 200-piggyback pod.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is carried outDescribe clearly and completely. Obviously, described embodiment is only that a part of the present invention is realExecute example, instead of whole embodiment. Based on embodiments of the invention, ordinary skillPersonnel, not making the every other embodiment obtaining under creative work prerequisite, belong toThe scope of protection of the invention.
In description of the invention, it will be appreciated that, term " " center ", " laterally "," longitudinally ", 'fornt', 'back', " left side ", " right side ", " on ", D score, " perpendicularDirectly ", the orientation of the instruction such as " level ", " top ", " end ", " interior ", " outward " orPosition relationship is based on orientation shown in the drawings or position relationship, be only for convenience of description thisBright and simplified characterization, instead of device or the element of instruction or hint indication must have specificallyOrientation, with specific orientation structure and operation, therefore can not be interpreted as protection domain of the present inventionRestriction.
In order to solve in prior art in the large and piggyback pod of the outside radiated noise of hoodPortion easily produces the problem of eddy current, the present invention proposes a kind of piggyback pod air channel knot of engineering truckStructure, comprises air inlet, the air outlet 5 being arranged on piggyback pod 200 and is positioned at described air inletAnd air channel between described air outlet 5, described air channel is provided with the chamber of at least one base closed,At least one side opening of described chamber is provided with aperture, and described chamber can be absorbed from instituteState the noise that the associated components of piggyback pod 200 inside produces, and with the institute in described apertureState at least one side and can stop that the air stream in described air channel enters described chamber.
Above-mentioned chamber base closed, wherein the implication of " base closed " is that this chamber is by oneOr the chamber of a sealing surrounding of above baffle plate, but due at this chamber extremelyA few side also offers aperture, thus the sealing in meaning completely of this chamber, because ofHere say that chamber is base closed.
The present invention is by the air channel forming between the air inlet on piggyback pod and air outletThe chamber of at least one base closed is set, and is provided with aperture at least one side opening of chamber,This chamber can absorb the noise producing from the associated components of described piggyback pod inside, effectivelyReduce the machine external noise of piggyback pod; In addition, offer the side in aperture, can prevent piggyback podThe generation of internal vortex, reduces the windage of air flow field in air channel, the sky of inside, optimizing power cabinAirflow field.
The setting position of above-mentioned chamber can have multiple choices, as long as can realize its effect.This chamber can be arranged at any corner in air channel, as long as at least one side of this chamber offersAperture, and this aperture can receive the noise from piggyback pod, and offer aperture simultaneouslyAt least one side can stop that the air in described air channel enters chamber to reduce in described piggyback podThe generation of the air-swirl of portion.
In a preferred embodiment, described chamber comprises the first chamber 12, described the first chamberChamber 12 can be arranged at the bottom of described piggyback pod 200. Chamber be arranged at bottom benefit be,Neither can take the space in air channel, also can not affect in air channel, enter owing to having increased chamberThe Air Flow of air port or air outlet, and be arranged at bottom and be also convenient to the absorption of noise. In addition,This chamber, by the bottom lock of piggyback pod, can prevent that outside air from passing through piggyback pod lower openingsEnter in air channel, also can prevent noise by piggyback pod bottom to external radiation, reduce noise.
Specific implementation form bottom chamber is arranged at has a variety of, preferably, and in described air channelBe provided with the air cooling equipment 16 for generation of air stream, the lower end of described air cooling equipment 16 arrangesThere is described the first chamber 12, between described the first chamber 12 and described air cooling equipment 16, be provided withThe first perforated plate 13. Also can in described air channel, be provided with power part 14, for generation of skyThe air cooling equipment 16 of air-flow and the heat exchange dress that carries out heat exchange for the air stream in described air channelPut 17, the lower end of described air cooling equipment 16 is provided with the first perforated plate 13, wears by described firstOrifice plate 13 and polylith baffle plate surround the first chamber 12.
The implication of above-mentioned polylith baffle plate is more than one or one. In above-described embodiment, be arranged atThe chamber of bottom can be kept off by the first perforated plate 13 and the polylith that are arranged at air cooling equipment 16 lower endsPlate surrounds, and can be also: as shown in Figure 8, and between power part 14 and air cooling equipment 16Be provided with the first baffle plate 15, and the lower end of air cooling equipment 16 is provided with the first perforated plate 13, theOne chamber 12 is by the first perforated plate 13, the first baffle plate 15, piggyback pod lower baffle plate 19 and right baffle plate(not shown) and vehicle frame surround jointly. Wherein the effect of the first baffle plate 15 is anti-stopNear hot-air power parts 14 is sucked by air cooling equipment 16. The first perforated plate 13 surfaces wearHave multiple apertures, absorption of noise well, reaches the effect in noise elimination noise reduction and optimization flow field.
In another preferred embodiment, described chamber comprises the second chamber, described the second chamberChamber is adjacent to described air outlet 5 and arranges. The benefit that is arranged at air outlet 5 is to prevent piggyback pod 200The noise of interior generation radiate by air outlet 5.
The specific implementation form that chamber is arranged at air outlet has a variety of, preferably, and described air-outAt least one side of mouth 5 is provided with perforated plate, the shell of described perforated plate and described piggyback pod 200100 form described the second chamber. More preferably, outside heat-exchanger rig 17 and piggyback pod 200Between shell 100, can also be provided with second baffle 18, second baffle 18 can prevent air outlet 5Hot-air sucked heat-exchanger rig 17 by air cooling equipment 16, reduce radiating effect. Thus,Two chambers can be by the perforated plate, second baffle 18 and the shell that are arranged at air outlet 5 at least one sides100 surround jointly.
Preferably, as shown in Figure 7, set out respectively on air port in the surrounding of described air outlet 5Side perforation plate 6, air outlet left side perforated plate 701, air outlet right side perforated plate 702 and air outletDownside perforated plate 8, arranges perforated plate by the position of air outlet in air channel 5 and realizes and disappearingThe effect of sound noise reduction, as shown in Figure 7, all offers multiple apertures on the surface of each perforated plate,Absorption of noise well.
In above-described embodiment, each perforated plate can be set directly near air outlet 5 on shellPosition, then become chamber by polylith baffle group; Also can be arranged on apart from air outlet 5 and haveThe position of one segment distance, so by air outlet upside perforated plate 6, air outlet left side perforated plate 701,Air outlet right side perforated plate 702 and shell 100 can surround at least three chambers; In addition,Two chambers, except above-mentioned three chambers, can also comprise by air outlet downside perforated plate 8 and manyThe lower side cavity 9 that piece baffle plate surrounds, these chambers all can prevent the outside spoke of noise effectivelyPenetrate, reduce machine external noise, and optimize inner air flow field. In addition, the first chamber 12 and underSide cavity 9 is two separate chambers, passes through air-cooled with the hot-air that prevents air outlet 5Device 16 sucks heat-exchanger rig 17, reduces radiating effect.
In order to strengthen the effect of sound insulation and noise reducing, on the inwall of described chamber, can be pasted with sound absorberMaterial. On the inwall of chamber, pasting sound-absorbing material is very simple and convenient noise elimination means, as forThe selection of deadener can have multiple choices, can select according to actual needs suitable material,As long as can reach corresponding effect.
In order further to strengthen the effect of sound insulation and noise reducing, can also gear be set at described air inlet placePlate, as shown in Figure 6, passes through described air intake with the noise that prevents described piggyback pod 200 interior generationsMouth radiate.
Preferably, described air inlet comprises shell 100 upper ends that are arranged at described piggyback pod 200Upper end air inlet 3 and be arranged at left side air inlet 401 and the right side of described shell 100 both sidesSide air inlet 402, on described upper end air inlet 3, described left side air inlet 401 and described right sideAt least one place in air inlet 402 is provided with baffle plate.
The effect of above-mentioned baffle plate is mainly that the noise of piggyback pod inside is carried out to noise reduction, prevents air channelThe noise that interior associated components produces as air cooling equipment 16 by above-mentioned three air inlets to external radiation,Cause larger machine external noise.
In order to prevent that in air channel, noise, to external radiation, can be avoided again air stream in air channelMoving being obstructed, can be in tilted layout into described baffle plate and make shape between described air inlet and described baffle plateBecome V-type air inlet duct. As shown in Figure 9, upper end air inlet baffle plate 10, left side air inlet baffle plate1101 and right side air inlet baffle plate 1102 be in tilted layout so that described upper end air inlet 3 and instituteState between upper end air inlet baffle plate 10, described left side air inlet 401 and described left side air inlet gearBetween plate 1101, between described right side air inlet 402 and described right side air inlet baffle plate 1102Form V-type air inlet duct.
In order to realize better noise reduction, described upper end air inlet 3, described left side air inlet401 and/or described right side air inlet 402 can be that opening shape is the shutter of V-type,The opening of wherein said upper end air inlet 3 is to oblique rear, described left side air inlet 401 and/or instituteState the opening of right side air inlet 402 obliquely upward.
In addition, described air outlet 5 can be also that opening shape is the shutter of V-type, instituteState the opening of air outlet 5 obliquely upward.
Below in conjunction with specific embodiment, the piggyback pod air channel structure to engineering truck of the present inventionImplementation procedure is elaborated:
As shown in Figure 9, for of the piggyback pod air channel structure of engineering truck of the present invention is preferably realExecute example. In this embodiment, as shown in Figure 5, the both sides of shell 100 are provided with side door 1, onEnd is provided with thermovent 2. First, as shown in figure 10, air is by being designed to shutter shapeThe upper end air inlet 3 of formula and both sides air inlet 401,402 enter, and then keep off at upper end air inletUnder the water conservancy diversion of plate 10, both sides air inlet baffle plate 1101,1102 and the first baffle plate 15, through VType path enters air cooling equipment 16 cooling fans, then takes away through heat-exchanger rig 17 radiatorsHeat, then pass through by air outlet upside perforated plate 6, air outlet left side perforated plate 701, air outletBehind the rectangle exhaust passage that right side perforated plate 702 and air outlet downside perforated plate 8 form, finally byThe air outlet 5 that is designed to shutter form is discharged. In addition, in of air channel indoor designOne perforated plate 13, air outlet upside perforated plate 6, air outlet left side perforated plate 701, air outletRight side perforated plate 702 and air outlet downside perforated plate 8 can well be optimized air flow field, subtractRill field windage, and the chamber that forms of each perforated plate, can realize good noise elimination noise reductionEffect.
The piggyback pod air channel structure of the engineering truck based on above-mentioned, it is a kind of moving that the present invention also providesPower cabin, comprises the piggyback pod air channel structure of above-mentioned engineering truck.
Based on above-mentioned piggyback pod, the present invention also provides a kind of engineering truck, comprises above-mentioned movingPower cabin.
By piggyback pod air channel structure, piggyback pod and engineering truck to engineering truck of the present inventionThe explanation of multiple embodiment, can find:
The piggyback pod air channel structure of engineering truck disclosed by the invention, has better sound insulation and noise reducingCan, in both sides and the upper end of shell, the baffle plate that can effectively stop noise to leak is set, fill in heat exchangePostpone end is provided with the air outlet of shutter form, and by air cooling equipment lower end and heat-exchanger rigThe surrounding of outlet is designed to the noise elimination cavity structure of perforated plate form, has optimized the air channel of cooling systemStructure, in the situation that not affecting in air channel windage, has carried out good sealing to air channel, andThe noise elimination cavity of indoor design can well absorb internal noise, makes power part, air cooling equipmentThe noise producing when the work obtained effective control to external radiation, suppress noise in air channelOutwards directly radiation.
Surrounding in air cooling equipment lower end and heat-exchanger rig outlet arranges noise elimination cavity structure, noise elimination cavityOutside plate all adopt perforated plate structure, make inside, air channel can not form obvious eddy current, optimizedInner air flow field, is conducive to flowing of wind, plays good soundproof effect simultaneously.
In addition, by the application test on land leveller, the piggyback pod of engineering truck of the present inventionMore than air channel structure can make outside engine noise decline 2dBA, and this apparatus structure is simple, easilyIn processing and manufacturing, with low cost, practicality is reliable, does not change the overall installation form of shell, energyEffectively control the noise that air cooling equipment produces, prevent that noise is to external radiation.
The piggyback pod air channel structure of engineering truck of the present invention can be applied to various engineering machineryAbove, be specially adapted to the engineering truck of bleed type cooling system.
Finally should be noted that: above embodiment is only in order to illustrate technical scheme of the present inventionNon-to its restriction; Although the present invention is had been described in detail with reference to preferred embodiment, underThe those of ordinary skill in field is to be understood that: still can enter the specific embodiment of the present inventionRow is revised or part technical characterictic is equal to replacement; And do not depart from technical solution of the present inventionSpirit, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (13)
1. a piggyback pod air channel structure for engineering truck, is characterized in that, comprises and being arranged onAir inlet, air outlet (5) on piggyback pod (200) and be positioned at described air inlet and described in go outAir channel between air port (5), described air channel is provided with the chamber of at least one base closed, described inAt least one side opening of chamber is provided with aperture, and described chamber can be absorbed from described movingThe noise that the inner associated components in power cabin (200) produces, and with described in described apertureAt least one side can stop that the air stream in described air channel enters described chamber.
2. the piggyback pod air channel structure of engineering truck according to claim 1, its featureBe, described chamber comprises the first chamber (12), and described the first chamber (12) is arranged at instituteState the bottom of piggyback pod (200).
3. the piggyback pod air channel structure of engineering truck according to claim 2, its featureBe, in described air channel, be provided with the air cooling equipment (16) for generation of air stream, described windThe lower end of device for cooling (16) is provided with described the first chamber (12), at described the first chamber (12)And between described air cooling equipment (16), be provided with the first perforated plate (13).
4. the piggyback pod air channel structure of engineering truck according to claim 1 and 2, itsBe characterised in that, described chamber comprises the second chamber, and described the second chamber is adjacent to described air outlet(5) arrange.
5. the piggyback pod air channel structure of engineering truck according to claim 4, its featureBe, at least one side of described air outlet (5) is provided with perforated plate, described perforated plate with described inThe shell (100) of piggyback pod (200) forms described the second chamber.
6. the piggyback pod air channel structure of engineering truck according to claim 1, its featureBe, on the inwall of described chamber, be pasted with sound-absorbing material.
7. the piggyback pod air channel structure of engineering truck according to claim 1, its featureBe, described air inlet place is provided with baffle plate, with what prevent from producing in described piggyback pod (200)Noise radiate by described air inlet.
8. the piggyback pod air channel structure of engineering truck according to claim 7, its featureBe, described air inlet comprises shell (100) upper end that is arranged at described piggyback pod (200)Upper end air inlet (3) and be arranged at the left side air inlet (401) of described shell (100) both sidesWith right side air inlet (402), at described upper end air inlet (3), described left side air inlet (401)Be provided with baffle plate with at least one place in described right side air inlet (402).
9. the piggyback pod air channel structure of engineering truck according to claim 7, its featureBe, described baffle plate is in tilted layout into and makes to form V-type between described air inlet and described baffle plate and enterAir channel.
10. the piggyback pod air channel structure of engineering truck according to claim 8, its featureBe described upper end air inlet (3), described left side air inlet (401) and/or described right sideThe shutter that air inlet (402) is V-type for opening shape, wherein said upper end air intakeThe opening of mouthful (3) is to oblique rear, described left side air inlet (401) and/or described right side air intakeThe opening of mouth (402) obliquely upward.
The piggyback pod air channel structure of 11. engineering trucks according to claim 1, its featureBe the shutter that described air outlet (5) is V-type for opening shape, described air-outThe opening of mouth (5) obliquely upward.
12. 1 kinds of piggyback pods, is characterized in that, comprise as described in claim 1-11 any oneThe piggyback pod air channel structure of engineering truck.
13. 1 kinds of engineering trucks, is characterized in that, comprise as claimed in claim 12 movingPower cabin.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376991A (en) * | 2018-12-27 | 2020-07-07 | 株式会社久保田 | Working vehicle |
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| 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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| CN111376991A (en) * | 2018-12-27 | 2020-07-07 | 株式会社久保田 | Working vehicle |
| CN111376991B (en) * | 2018-12-27 | 2022-08-12 | 株式会社久保田 | Working vehicle |
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