WO2013027351A1 - 建設機械 - Google Patents
建設機械 Download PDFInfo
- Publication number
- WO2013027351A1 WO2013027351A1 PCT/JP2012/005013 JP2012005013W WO2013027351A1 WO 2013027351 A1 WO2013027351 A1 WO 2013027351A1 JP 2012005013 W JP2012005013 W JP 2012005013W WO 2013027351 A1 WO2013027351 A1 WO 2013027351A1
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- WIPO (PCT)
- Prior art keywords
- engine
- air
- fan
- exhaust duct
- construction machine
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/06—Guiding or ducting air to, or from, ducted fans
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P2001/005—Cooling engine rooms
Definitions
- the present invention relates to a construction machine such as an excavator, which includes a heat exchanger and a device for cooling the heat exchanger.
- the excavator includes a lower traveling body 1, an upper revolving body 2 that is rotatably mounted on the lower traveling body 1 and has an upper frame 3 as a base, and various facilities including the cabin 4 that are mounted on the upper frame 3.
- An engine room 8 that houses the engine 7 is provided at the rear of the upper frame 3.
- FIG. 10 is a schematic cross-sectional view of the arrangement of devices in the engine room 8 and the air flow as seen from the back side.
- the engine room 8 includes a space that is a part of the upper frame 3 and that is surrounded by a bottom plate 9 constituting the floor of the engine room 8 and an engine guard member 10 made of a panel material or the like in the left-right direction,
- the counterweight 6 also serves as a part of the engine guard member 10.
- the engine 7 is installed in the engine room 8 so as to extend in the left-right direction.
- a heat exchanger 11 including a radiator, an oil cooler, and the like for cooling the engine 7 and an axial flow fan 12 are provided on one of the left and right sides of the engine 7 (right side in the illustrated example).
- An intake port 13 is provided on the right side portion of the upper wall of the engine room 8, and an exhaust port 16 is provided on the left side portion.
- the fan 12 sucks outside air from the intake port 13 through its rotation and passes the heat exchanger 11, thereby cooling the heat exchanger 11.
- a hydraulic pump 14 and a pump cover 15 positioned thereon are provided on the other side (left side in the illustrated example) of the left and right sides of the engine 7.
- the pump cover 15 is configured to prevent at least a part of the hydraulic pump 14 from leaking to the engine 7, specifically, an exhaust system including a muffler (not shown). Cover.
- the rotation of the fan 12 forms an air flow as shown by an arrow in FIG. 10 on the downstream side of the fan 12.
- This air flow includes a component in the rotational direction of the fan 12 and a component in the centrifugal direction.
- the air flow moves from the right to the left over almost the entire region on the downstream side of the fan 12 and reaches the exhaust port 16 at the left end. Therefore, this air flow is easily subjected to a large resistance, and turbulence is likely to occur. This leads to a decrease in discharge efficiency.
- Patent Documents 1 and 2 disclose that a groove extending in a vertical direction, that is, a concave passage, is provided in a front portion of a counterweight 6 that forms the rear surface of the engine room 8 and a fan passage extending vertically. 12 discloses that the air discharged in the direction including the turning direction and the radial direction from 12 is directly collected through the groove and discharged to the outside of the engine room. It does not lead to. The air flowing as described above actually moves while swirling the entire area downstream of the fan by the component in the fan axial direction as described above.
- Patent Documents 1 and 2 captures and discharges only the air discharged from the fan 12 in the swirling direction and the radial direction, the air passing through most of the area downstream of the fan. Cannot be collected. In addition, the air flow resistance at the inlet portion of the groove is increased, so that the air flow performance is poor.
- An object of the present invention is to provide a construction machine having an engine room that can efficiently collect air flowing in the engine room and improve exhaust efficiency.
- the construction machine includes an engine room, an engine housed in the engine room, a heat exchanger provided on a first side which is one side in the longitudinal direction of the engine, and a first side of the engine
- a cooling fan comprising an axial flow fan installed in the engine room, entering the engine room from the outside of the engine room, passing through the heat exchanger and including components in the rotational direction, centrifugal direction and axial direction of the fan
- a fan that rotates to generate a flow of air around the engine, an air inlet and an air outlet, and extends along the engine in a fan axial direction parallel to the rotational axis of the fan.
- an exhaust duct provided in the engine room, the exhaust duct extending in the fan axial direction the air flowing downstream of the fan in the fan axial direction. It was collected in the region for guiding the flow of the air to be discharged out of the engine room.
- FIG. 2 is a sectional view taken along line II-II in FIG.
- FIG. 3 is a sectional view taken along line III-III in FIG. 1.
- FIG. 4 is a sectional view taken along line IV-IV in FIG. 1.
- It is a perspective view of the rear part of the shovel in the first embodiment.
- FIG. 3 is a perspective view of an exhaust duct and a pump cover in the first embodiment.
- the excavator according to the embodiment is a cabin that is mounted on the lower traveling body 1, the upper swinging body 2 that is rotatably mounted on the lower traveling body 1 and having the upper frame 3 as a base, and the upper frame 3.
- various facilities and equipment including 4, a work attachment (or excavation attachment) 5 attached to the front portion of the upper frame 3, and a counterweight 6 attached to the rear end portion of the upper frame 3. 4 is provided at the front left side of the upper frame 3 in the traveling direction.
- An engine room 8 that houses the engine 7 is provided at the rear of the upper frame 3.
- the engine room 8 includes a long space in the left-right direction surrounded by a bottom plate 9 constituting the floor and an engine guard member 10 made of a panel material, and the counterweight 6 includes a part of the engine guard member 10. Also serves as.
- the engine 7 is installed in the engine room 8 so as to extend in the left-right direction.
- a heat exchanger 11 including a radiator, an oil cooler, and the like for cooling the engine 7 and an axial flow fan 12 are provided on one of the left and right sides of the engine 7 (right side in the illustrated example). ing.
- An intake port 13 is provided on the right side portion of the upper wall of the engine room 8. The fan 12 sucks outside air from the intake port 13 through its rotation and passes the heat exchanger 11, thereby cooling the heat exchanger 11.
- a hydraulic pump 14 and a pump cover 17 located thereon are provided on the other side (left side in the illustrated example) of the left and right sides of the engine 7.
- the pump cover 17 is configured to prevent the oil leaked or scattered in a mist form from the hydraulic pump 14 from falling on the engine 7, specifically, an exhaust system including a muffler (not shown). Partition.
- the rotation of the fan 12 forms an air flow as shown by arrows in FIGS. 1 to 4 and 7 on the downstream side of the fan 12.
- This air flow includes a rotational component, a centrifugal component, and a fan axial component of the fan 12.
- the shovel according to the first embodiment includes an exhaust duct 18 in addition to the above-described components.
- the exhaust duct 18 is provided in a lower front portion of the engine 7 in the engine room 8 in a posture in which the exhaust duct 18 extends along the engine 7 in the fan axial direction (left and right direction of the shovel).
- the exhaust duct 18 includes a duct body 19 and a partition plate 20 located in front of the engine 7.
- the partition plate 20 is one of partition members for defining the engine room 8 at the rear of the upper frame 3 by partitioning the space on the upper frame 3 back and forth, and is positioned on the bottom plate 9 at a position in front of the engine 7. It is erected and extends in the left-right direction over substantially the entire area of the bottom plate 9 in the left-right direction.
- the duct body 19 has a front side wall 19a positioned on the front side of the partition plate 20 with a space between the duct plate 20 and a rear side from both left and right ends of the front side wall 19a.
- the left and right side walls 19b and 19c are integrally formed, and these side walls 19a to 19c form a long frame on the left and right sides surrounding the internal space opened to the front side and the upper and lower sides.
- This duct main body 19 is attached to the back surface of the partition plate 20 on the bottom plate 9, thereby forming an exhaust duct 18 having an air inlet 21 and an air outlet 22 extending in the left-right direction at the upper end and the lower end, respectively. .
- the bottom plate 9 is provided with an exhaust port 23 that opens below the engine room 8 at a position corresponding to the air exhaust port 22 of the exhaust duct 18. Therefore, the exhaust duct 18 sucks air moving around the engine 7 from the air inlet 21 at the upper end thereof into the exhaust duct 18 and exhausts it from the air outlet 22 at the lower end and the exhaust outlet 23 below it. It is possible to do. Further, as shown in FIGS. 5 and 6, the upper right side end of the front side wall 19 a of the duct body 19, that is, the portion located in front of the fan 12 and located on the most upstream side of the air flow. A notch 24 is formed, and this notch 24 facilitates the introduction of air flowing in a direction having components in the rotational direction and the centrifugal direction of the fan 12 into the exhaust duct 18.
- the exhaust duct 18 according to the first embodiment is bent at an intermediate position in the vertical direction so that the lower half thereof faces obliquely rearward, that is, around the fan 12. It has a shape that substantially follows the swirling direction of air.
- the exhaust duct 18 may include a sound absorbing material such as glass wool that is fixed to the inner surface of the side wall constituting the exhaust duct 18.
- the exhaust duct 18 is provided over the entire length of the engine 7 or more so that air flowing around the engine 7 can be collected over as wide a range as possible in the fan axial direction. ,desirable.
- the present invention does not exclude the case where the exhaust duct 18 is shorter than the total length of the engine 7 due to restrictions due to the relationship with the layout of other equipment and other reasons. That is, the “exhaust duct collects air flowing in the downstream side of the fan in the fan axial direction in a region extending in the fan axial direction” according to the present invention means that the direction of rotation from the fan 12 is the same as in the prior art.
- the pump cover 17 covers at least a part of the original function, that is, the hydraulic pump 14 (covered from the upper side in the examples shown in FIGS. 1 and 2), so that leakage / scattered oil from the hydraulic pump 14 can be prevented.
- the pump cover 17 has a shape that performs the air guiding function that guides the air flowing around the engine 7 to the exhaust duct 18 on the most downstream side.
- the pump cover 17 integrally includes a main body wall 17c that covers the hydraulic pump 14 from the upper side on the side of the engine 7, and a side wall 17b that extends downward from the peripheral edge of the main body wall 17c.
- the body wall 17c and the side wall 17b cover the hydraulic pump 14 from above and surround a space opened downward, that is, a wind guide member that forms a lower opening 26 as shown in FIG. Configure.
- the air guide member formed by the main body wall 17c and the side wall 17b extends in the fan axial direction toward the air inlet 21 of the exhaust duct 18 at a front end portion thereof, that is, a portion located in front of the engine 7.
- the guide portion 25 is provided.
- the air guide member formed by the pump cover 17 takes in the air swirling around the engine 7 from the rear portion of the lower opening 26, that is, the air inlet and is an air outlet opening at the end of the guide portion 25.
- the air guide member formed by the pump cover 17 takes in the air swirling around the engine 7 from the rear portion of the lower opening 26, that is, the air inlet and is an air outlet opening at the end of the guide portion 25.
- the guide portion 25 may be disposed so as to cover the left end portion of the air introduction port 21 from above, or may be located slightly to the left of the left end portion of the air introduction port 21. You may arrange in.
- the pump cover 17 shown in FIGS. 1 to 6 has an upper side wall 17a extending upward from the outer edge of the main body wall 17c, but this upper side wall 17a can be omitted as appropriate.
- the exhaust efficiency can be improved by providing the exhaust duct 18.
- the exhaust duct 18 circulates air moving in the fan axial direction while turning by the rotation of the fan 12 over a specific region extending in the moving direction (in this embodiment, a region covering almost the entire length of the engine). Can be collected and discharged.
- the air inlet 21 of the exhaust duct 18 is provided over almost the entire length of the exhaust duct 18, the ventilation resistance at the air inlet portion is small. Therefore, the exhaust efficiency is remarkably improved as compared with the case where only the air discharged from the fan 12 in the turning direction and the radial direction can be collected as in the prior art.
- the pump cover 17 functions as an air guide member that guides the air once passing through the region where the exhaust duct 18 is disposed in the fan axial direction to the exhaust duct 18 on the downstream side of the exhaust duct 18. In addition to being able to suppress the occurrence of turbulent flow due to, it contributes to improving exhaust efficiency. Moreover, the combined use of the pump cover 17 with the air guide member makes it possible to install the air guide member without difficulty in the engine room 8 where the space is limited, in addition to avoiding an increase in the number of components.
- the exhaust duct 18 has a shape that bends in the front-rear direction when viewed from the side, and has a shape in which an intermediate portion in the vertical direction swells forward from the upper end and the lower end, that is, a direction in which air swirls around the fan 12. Therefore, the sound reflection / attenuation effect in the exhaust duct 18 is enhanced, the “direct sound” leaking directly to the outside through the exhaust duct 18 is suppressed, and the noise reduction effect is enhanced. In addition, it is possible to improve the flow of air in the exhaust duct 18 and increase the exhaust efficiency.
- the second embodiment includes an exhaust duct 27 in place of the exhaust duct 18 in the excavator according to the first embodiment.
- the exhaust duct 27 is configured as a box body that surrounds an independent internal space that is long on the left and right only by the exhaust duct 27, while the engine 7 in the engine room 8 is similar to the exhaust duct 18. It is installed with the attitude
- the exhaust duct 27 has a shape that bends in the front-rear direction at two locations in the vertical direction so that the upper and lower portions respectively face obliquely rearward, that is, the middle portion in the vertical direction swells forward compared to the upper and lower ends. Have.
- the fan 12 has a shape that further fits in the swirling direction of air around the fan 12.
- the exhaust duct 27 also has an air inlet 28 and an air outlet 29.
- the air outlet 29 is provided at the lower end of the exhaust duct 27 in the same manner as the air outlet 22 of the first embodiment.
- the upper part of the exhaust duct 27 opens backward.
- the exhaust duct 27 has a larger height than the exhaust duct 18 of the first embodiment, and the air inlet 28 is adjacent to the upper portion of the engine 7.
- the exhaust duct 27 has the following effects in addition to the effects exhibited by the exhaust duct 18 according to the first embodiment.
- the present invention is not limited to the first and second embodiments.
- the present invention includes the following aspects, for example.
- the exhaust duct may be arranged behind the engine if there is no space limitation in the engine room and no device layout limitation.
- a dedicated air guide member configured separately from the pump cover may be arranged on the downstream side of the engine in the fan axial direction.
- the present invention is not limited to the excavator, and can be widely applied to, for example, a dismantling machine or a crusher configured by using the excavator base.
- An object of the present invention is to provide a construction machine having an engine room, which can efficiently collect an air flow formed in the engine room and improve exhaust efficiency.
- the construction machine includes an engine room, an engine housed in the engine room, a heat exchanger provided on a first side which is one side in the longitudinal direction of the engine, and a first side of the engine A cooling fan comprising an axial flow fan installed in the engine room, entering the engine room from the outside of the engine room, passing through the heat exchanger and including components in the rotational direction, centrifugal direction and axial direction of the fan A fan that rotates to generate a flow of air around the engine, an air inlet and an air outlet, and extends along the engine in a fan axial direction parallel to the rotational axis of the fan. And an exhaust duct provided in the engine room, the exhaust duct extending in the fan axial direction the air flowing downstream of the fan in the fan axial direction. It was collected in the region for guiding the flow of the air to be discharged out of the engine room.
- the air flowing so as to move in the fan axial direction while turning by the rotation of the fan is collected in a region having a limited range in the fan axial direction that is the moving direction.
- the airflow resistance at the air flow inlet portion does not increase.
- the exhaust duct is provided over a region extending substantially over the entire length of the engine in the fan axial direction, and the air inlet and the air outlet are formed over substantially the entire length of the exhaust duct in the fan axial direction. It is desirable. Such an exhaust duct has particularly good exhaust efficiency because it can collect and discharge an air flow moving in the fan axial direction while turning around the engine on the downstream side of the fan in a region substantially corresponding to the entire length of the engine.
- the exhaust duct preferably has the air inlet at the top and the air outlet at the bottom, so that the air flowing around the engine is sucked from above and discharged from below. It may be arranged in front of or behind the lower part of the engine. This exhaust duct allows the air around the engine to be inhaled from above the exhaust duct in accordance with the turning direction and exhausted from below, thereby smoothly sucking in and exhausting air with low ventilation resistance. The exhaust efficiency can be further increased. Further, the exhaust duct discharges the air from under the exhaust duct, thereby suppressing the influence of equipment noise leaking from the engine room to the outside, for example, the sound generated by the engine or the hydraulic pump, on the surroundings. .
- a part of the engine room floor constitutes a frame, and the engine is installed on the frame in a posture extending substantially parallel to the longitudinal direction of the engine.
- the combination of these partition members and the duct main body is to form the exhaust duct at a low cost by using the partition member which is a part of the engine guard constituting the engine room with a small number of parts and a small number of assembly steps. enable.
- the construction machine according to the present invention further includes a wind guide for collecting the air that has passed through the region in which the exhaust duct collects the air in the fan axial direction on the downstream side of the region and guiding the air to the exhaust duct. It is preferable to provide a member. This wind guide member collects the air once passing through the collection area of the exhaust duct and guides it to the exhaust duct to suppress the generation of turbulent flow due to the leaked air. Contributes to improvement.
- a hydraulic pump provided on a second side opposite to the first side of the engine, and a pump cover covering the hydraulic pump so as to cut off at least a part of the hydraulic pump from the engine
- this pump cover has an air inlet for taking in air flowing around the engine and an air outlet for discharging the taken-in air into the exhaust duct and functions as the air guide member.
- the combined use of the pump cover as the air guide member makes it possible to install the air guide member without difficulty in the engine room where the space is limited while suppressing an increase in the number of components.
- the pump cover has an opening at the lower end, covers the hydraulic pump from above, and discharges air flowing in from the opening to the exhaust duct.
- the exhaust duct preferably has a shape that bends between its air inlet and air outlet. This bending of the exhaust duct makes it possible to enhance the sound reflection / attenuation effect in the exhaust duct and to enhance the noise reduction effect by suppressing the “direct sound” that leaks directly to the outside through the exhaust duct. To do.
- the exhaust duct bends in a direction along the direction in which air swirls around the fan.
- the shape of the exhaust duct makes it possible to smoothly increase the exhaust efficiency by smoothing the air flow in the duct.
Abstract
Description
Claims (9)
- 建設機械であって、
エンジンルームと、
このエンジンルーム内に収容されるエンジンと、
このエンジンの長手方向の一方の側である第1の側に設けられる熱交換器と、
前記エンジンの第1の側に設けられる軸流式のファンであって前記エンジンルームの外部から当該エンジンルームの内部に進入して前記熱交換器を通りかつ当該ファンの回転方向、遠心方向および軸方向の各成分を含む冷却用の空気の流れを前記エンジンの周囲に生成するように回転するファンと、
空気導入口及び空気排出口を有し、前記エンジンに沿って前記ファンの回転軸と平行なファン軸方向に延びるように前記エンジンルーム内に設けられる排気ダクトと、を備え、この排気ダクトは、前記ファン軸方向についてファンの下流側を流れる空気を当該ファン軸方向に延びる領域内で捕集してエンジンルーム外に排出するように当該空気の流れを案内する、建設機械。 - 請求項1記載の建設機械であって、前記排気ダクトは、前記ファン軸方向について前記エンジンのほぼ全長に亘る領域に亘って設けられ、かつ、この排気ダクトの空気導入口及び空気導出口は前記ファン軸方向について当該排気ダクトのほぼ全長にわたり形成されている、建設機械。
- 請求項1または2記載の建設機械であって、前記排気ダクトは、その上部に前記空気導入口を有し、その下部に前記空気排出口を有し、前記エンジンの周囲を流れる空気を上から吸入して下から排出するように前記エンジンの下部の前方または後方に配置される、建設機械。
- 請求項1~3のいずれかに記載の建設機械であって、その一部が前記エンジンルームの床を構成するフレームと、このフレーム上に前記エンジンの長手方向とほぼ平行に延びる姿勢で立設されることにより前記フレームの後部に前記エンジンルームを画定する仕切り部材と、前方に開放された空間を囲む枠状のダクト本体を備え、このダクト本体が前記仕切り部材の後ろ側の面に取付けられて当該仕切り部材とともに前記排気ダクトを形成する、建設機械。
- 請求項1~4のいずれかに記載の建設機械であって、前記排気ダクトが前記空気を捕集する領域を前記ファン軸方向に通過した空気を当該領域の下流側で捕集して前記排気ダクトに導く導風部材をさらに備える、建設機械。
- 請求項5記載の建設機械であって、前記エンジンの前記第1の側と反対の第2の側に設けられる油圧ポンプと、この油圧ポンプの少なくとも一部を前記エンジンから遮断するように当該油圧ポンプを覆うポンプカバーと、をさらに備え、このポンプカバーが前記エンジンの周囲を流れる空気を取り込む空気入口とその取り込んだ空気を前記排気ダクト内に排出する空気出口とを有して前記導風部材として機能する、建設機械。
- 請求項6記載の建設機械であって、前記ポンプカバーは、下端に開口を有して前記油圧ポンプを上側から覆いかつ当該開口から流入する空気を前記排気ダクトに排出する形状を有する、建設機械。
- 請求項1~7のいずれかに記載の建設機械であって、前記排気ダクトは、その空気導入口と空気排出口の間で屈曲する形状を有する、建設機械。
- 請求項8記載の建設機械であって、前記排気ダクトは、前記ファンの周囲で空気が旋回する方向に沿う向きに屈曲する、建設機械。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201280040409.5A CN103796860B (zh) | 2011-08-19 | 2012-08-07 | 工程机械 |
KR1020147007156A KR101923759B1 (ko) | 2011-08-19 | 2012-08-07 | 건설 기계 |
EP12825313.5A EP2746087B1 (en) | 2011-08-19 | 2012-08-07 | Construction machine |
US14/239,054 US9376786B2 (en) | 2011-08-19 | 2012-08-07 | Construction machine |
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JP2011179689A JP5824961B2 (ja) | 2011-08-19 | 2011-08-19 | 建設機械の冷却装置 |
JP2011-179689 | 2011-08-19 |
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WO2013027351A1 true WO2013027351A1 (ja) | 2013-02-28 |
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US (1) | US9376786B2 (ja) |
EP (1) | EP2746087B1 (ja) |
JP (1) | JP5824961B2 (ja) |
KR (1) | KR101923759B1 (ja) |
CN (1) | CN103796860B (ja) |
WO (1) | WO2013027351A1 (ja) |
Cited By (1)
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CN104369658A (zh) * | 2013-08-15 | 2015-02-25 | 迪尔公司 | 具有动态导流板的多单元冷却系统 |
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KR101923759B1 (ko) | 2018-11-29 |
KR20140052042A (ko) | 2014-05-02 |
US20140166380A1 (en) | 2014-06-19 |
CN103796860A (zh) | 2014-05-14 |
EP2746087B1 (en) | 2016-10-26 |
JP2013039895A (ja) | 2013-02-28 |
US9376786B2 (en) | 2016-06-28 |
CN103796860B (zh) | 2016-05-18 |
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EP2746087A4 (en) | 2015-03-18 |
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