JPH0238826Y2 - - Google Patents
Info
- Publication number
- JPH0238826Y2 JPH0238826Y2 JP2486783U JP2486783U JPH0238826Y2 JP H0238826 Y2 JPH0238826 Y2 JP H0238826Y2 JP 2486783 U JP2486783 U JP 2486783U JP 2486783 U JP2486783 U JP 2486783U JP H0238826 Y2 JPH0238826 Y2 JP H0238826Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling air
- discharge
- vehicle
- duct
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】
本考案は、フオークリフトやシヨベルローダ等
の産業車両における冷却風の排出装置に関する。[Detailed Description of the Invention] The present invention relates to a cooling air discharge device for an industrial vehicle such as a forklift or a shovel loader.
フオークリフト等の産業車両ではラジエータを
通過した冷却風を車体の後方から車外へ排出する
のが一般的ではあるが、これではエンジンやフア
ンによる騒音が冷却風と共に車外へ直に放出され
てしまうから、該騒音を低減すべく、冷却風の流
れを変向することによつて消音効果の向上を図つ
たものが提案されており、第７図乃び第８図はそ
の排出ダクトの１例を示したものである。 In industrial vehicles such as forklifts, it is common to exhaust the cooling air that has passed through the radiator to the outside of the vehicle from the rear of the vehicle body, but in this case the noise from the engine and fan is directly emitted outside the vehicle along with the cooling air. In order to reduce this noise, it has been proposed to improve the silencing effect by changing the direction of the flow of cooling air, and Figures 7 and 8 show an example of the exhaust duct. This is what is shown.
図示のようにラジエータ５の後側に配置された
排出ダクト６は、該ラジエータ５と対向する前面
及び上面をそれぞれ開放したほぼ箱形に形成され
るとともに、その底板乃び後板が冷却風の流れの
方向を変えるための湾曲状とされている。ところ
が、このような箱形の排出ダクト６は騒音の低減
には有効である反面、冷却風の排出効果が悪いと
いう欠点がある。すなわち、フアン４によつて押
出されラジエータ５を通過した冷却風の流れの方
向を変えた場合、排出ダクト６内における中央部
分の圧力が壁側に比べて低いことから、該中央部
分に乱流が発生して流れの円滑性を欠き、ときに
はラジエータ通過後の熱せられた冷却風がフアン
中心に相当する部分で逆流してしまう。その結果
として、冷却効果が著しく悪化しエンジンのオー
バーヒートを引起すことにもなる。 As shown in the figure, the exhaust duct 6 arranged on the rear side of the radiator 5 is formed into an almost box-like shape with the front and top surfaces facing the radiator 5 open, and the bottom plate and rear plate of the exhaust duct 6 are used for cooling air. It has a curved shape to change the direction of flow. However, although such a box-shaped exhaust duct 6 is effective in reducing noise, it has a drawback in that it has a poor cooling air exhaust effect. That is, when the direction of the flow of cooling air pushed out by the fan 4 and passed through the radiator 5 is changed, turbulent flow occurs in the central part because the pressure in the central part of the exhaust duct 6 is lower than that on the wall side. This causes a lack of smooth flow, and sometimes the heated cooling air after passing through the radiator flows backwards at the center of the fan. As a result, the cooling effect deteriorates significantly and the engine overheats.
本考案は、上述した従来の欠点を除去すること
を目的としたもので、その要旨は冷却風の流れの
方向を変えて排出する排出ダクトにおいて、ダク
ト内に車幅方向に適宜間隔で配設した複数枚の整
流板にて複数の排出路を区画形成し、それら排出
路のうちの少くとも中央部に位置する排出路を流
れ変向用の曲整流板にてさらに複数の通路に区画
形成し、冷却風を円滑に排出することにある。 The purpose of this invention is to eliminate the above-mentioned conventional drawbacks, and the gist is that in an exhaust duct that discharges cooling air by changing its flow direction, the duct is arranged at appropriate intervals in the vehicle width direction. A plurality of discharge passages are formed using a plurality of rectifying plates, and at least one of the discharge passages located in the center of the discharge passages is further divided into a plurality of passages using a curved rectifying plate for flow direction. The objective is to smoothly discharge cooling air.
以下、本考案を図示の実施例に基いて具体的に
説明する。図において、１は後部にカウンタウエ
イト２が設置されたフオークリフトの車体であ
り、該車体１内には前側から後側にかけてエンジ
ン３、冷却フアン４、ラジエータ５及び排出ダク
ト６が上記の順序で並列して配置されている。ラ
ジエータ５を通過した冷却風を流れの方向を変え
て車外へ放出するための排出ダクト６は、ラジエ
ータ５と対向する前面及びカウンタウエイト２の
上側開口部２ａと対向する上面がそれぞれ開放さ
れ、かつ、底板及び後板が流れの方向を変えるた
めに湾曲状とされたほぼ箱形に形成されている。 Hereinafter, the present invention will be specifically explained based on illustrated embodiments. In the figure, 1 is a forklift vehicle body with a counterweight 2 installed at the rear, and inside the vehicle body 1, an engine 3, a cooling fan 4, a radiator 5, and an exhaust duct 6 are installed in the above order from the front to the rear. are arranged in parallel. The exhaust duct 6 for changing the flow direction of the cooling air that has passed through the radiator 5 and discharging it outside the vehicle has an open front face facing the radiator 5 and an open upper face facing the upper opening 2a of the counterweight 2, and , the bottom plate and the rear plate are formed into a substantially box shape with curves to change the direction of flow.
そして、排出ダクト６は第３図及び第４図に示
すように、該排出ダクト内に配設された互に平行
な２枚の整流板７により幅方向（車幅方向）にお
いて３つの排出路８に区画形成されており、また
それら３つの排出路８のうちの中央部の排出路８
は、その路内に配設された流れ方向を上方へ変え
得る２枚の曲整流板９によりさらに３つの小通路
１０に区画形成されている。 As shown in FIGS. 3 and 4, the exhaust duct 6 is formed into three exhaust channels in the width direction (vehicle width direction) by two mutually parallel rectifier plates 7 disposed inside the exhaust duct. 8, and among the three discharge passages 8, the central discharge passage 8
is further divided into three small passages 10 by two curved baffle plates 9 arranged in the passage and capable of changing the flow direction upward.
本実施例は冷却風の排出ダクト６を上述の如く
構成したものであり、従つてダクト内の冷却風の
流れは区画された各排出路８ならびに各小通路１
０ごとで相互に影響を及ぼさない独立したなめら
かな流れが得られ、とくにフアン中心部に相当す
る風量の少いダクト中心部における乱流や逆流が
防止され、冷却風はダクト内に滞留することなく
車外に放出される。 In this embodiment, the cooling air discharge duct 6 is constructed as described above, and therefore the flow of cooling air in the duct is directed through each of the divided discharge passages 8 and each of the small passages 1.
0, an independent and smooth flow that does not affect each other is obtained, and turbulence and backflow are prevented, especially in the center of the duct where the air volume is small, which corresponds to the center of the fan, and the cooling air stays in the duct. It is ejected outside the vehicle.
つぎに、第５図及び第６図に示す本考案の他の
実施例について説明する。この実施例は排出ダク
ト６の全内面及び通路区画用の整流板７と曲整流
板９の両面にそれぞれ吸音材１１を貼着したもの
であり、従つてこの実施例によれば冷却風の排出
を有効になし得ることに加え、エンジン音やフア
ン、ラジエータの風切り音等の騒音を吸収し減衰
することができる。 Next, another embodiment of the present invention shown in FIGS. 5 and 6 will be described. In this embodiment, a sound absorbing material 11 is attached to the entire inner surface of the exhaust duct 6 and both sides of the rectifying plate 7 and the curved rectifying plate 9 for passage sections. In addition to effectively reducing noise, it can also absorb and attenuate noise such as engine noise and wind noise from fans and radiators.
なお、排出ダクト６の路数は図示例のものに限
定するものではなく、必要に応りじて整流板７や
曲整流板９の設定による抵抗等を考慮して適宜増
減される。 Note that the number of passages in the discharge duct 6 is not limited to that shown in the illustrated example, and may be increased or decreased as necessary, taking into consideration the resistance caused by the settings of the rectifying plate 7 and the curved rectifying plate 9.
以上詳述したように、本考案はラジエータを通
過した冷却風を流れの方向を変えて車外へ排出す
る排出ダクトにおいて、該ダクト内を整流板及び
曲整流板にて区画することにより、排出ダクト内
での乱流や逆流の発生を抑え得たものであり、こ
のことにより冷却風はなめらかに車外へ放出さ
れ、冷却効果が向上される。 As described in detail above, the present invention is a discharge duct that changes the flow direction of the cooling air that has passed through the radiator and discharges it outside the vehicle. This suppresses the occurrence of turbulence and backflow inside the vehicle, which allows the cooling air to be smoothly discharged to the outside of the vehicle, improving the cooling effect.
第１図〜第６図は本考案の実施例を示し、第１
図はフオークリフトを示す一部破断側面図、第２
図は同じく平面図、第３図は要部を示す平面図、
第４図は同じく縦断面図、第５図は他の実施例を
示す平面図、第６図は同じく縦断面図、第７図は
従来の排出ダクトを例示する平面図、第８図は同
じく縦断面図である。
１……車体、２……カウンタウエイト、５……
ラジエータ、６……排出ダクト、７……整流板、
８……排出路、９……曲整流板、１０……小通
路。
Figures 1 to 6 show embodiments of the present invention;
The figure is a partially cutaway side view showing a forklift, the second
The figure is also a plan view, Figure 3 is a plan view showing the main parts,
FIG. 4 is a longitudinal sectional view, FIG. 5 is a plan view showing another embodiment, FIG. 6 is a longitudinal sectional view, FIG. 7 is a plan view illustrating a conventional discharge duct, and FIG. 8 is a plan view showing another embodiment. FIG. 1...Car body, 2...Counterweight, 5...
Radiator, 6... Discharge duct, 7... Rectifier plate,
8...Discharge channel, 9...Curved rectifier plate, 10...Small passage.
Claims (1)
れの方向を変えて上方へ排出するための排出ダク
トを車体後部に備えた産業車両において、前記排
出ダクトをその幅方向に適宜間隔を置いて配設し
た複数枚の整流板にて複数の排出路に区画形成す
るとともに、それら排出路のうちの少くとも中央
部に位置する排出路を流れの方向を上方へ変え得
る曲整流板にてさらに複数の通路に区画形成した
ことを特徴とする産業車両の冷却風排出装置。 In an industrial vehicle equipped with a discharge duct at the rear of the vehicle body for changing the direction of the flow of cooling air flowing rearward through a radiator and discharging it upward, the discharge duct is arranged at appropriate intervals in the width direction of the vehicle. A plurality of discharge channels are formed using a plurality of rectifying plates, and a plurality of discharge channels are further divided into a plurality of discharge channels by a curved rectifying plate that can change the direction of flow upward at least at the center of the discharge channels. A cooling air exhaust device for an industrial vehicle, characterized in that a passage is divided into sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2486783U JPS59129627U (en) | 1983-02-21 | 1983-02-21 | Cooling air exhaust device for industrial vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2486783U JPS59129627U (en) | 1983-02-21 | 1983-02-21 | Cooling air exhaust device for industrial vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59129627U JPS59129627U (en) | 1984-08-31 |
| JPH0238826Y2 true JPH0238826Y2 (en) | 1990-10-18 |
Family
ID=30155883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2486783U Granted JPS59129627U (en) | 1983-02-21 | 1983-02-21 | Cooling air exhaust device for industrial vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59129627U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3917108C1 (en) * | 1989-05-26 | 1990-08-02 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
| JP2569514Y2 (en) * | 1992-03-05 | 1998-04-28 | 川崎重工業株式会社 | General purpose engine |
-
1983
- 1983-02-21 JP JP2486783U patent/JPS59129627U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59129627U (en) | 1984-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4071009A (en) | Combined noise suppressing and air flow guide enclosure for engines | |
| US7451843B2 (en) | Construction machine | |
| EP0734897B1 (en) | Cooling structure for construction machine | |
| US4241702A (en) | Noise-proof and air-cooled enclosure for an engine | |
| JP2020032742A (en) | Vehicle duct structure | |
| JPH11117761A (en) | Sound absorbing duct | |
| JPH0238826Y2 (en) | ||
| JP2006347385A (en) | Front part structure for vehicle body | |
| JP2001132453A (en) | Fan shroud for radiator | |
| JP2020032743A (en) | Vehicle duct structure | |
| JP4729870B2 (en) | Construction machinery | |
| JP2000213888A (en) | Heating, ventilating, or air-conditioning device with heat- exchange device | |
| JP2000213369A (en) | Generating apparatus | |
| JP3168796B2 (en) | Front structure of vehicle with reduced air resistance | |
| JP2548492Y2 (en) | Engine cooling system | |
| JP3783373B2 (en) | Engine room sound absorber | |
| JP2001341534A (en) | Cooling device for automobile | |
| JPH029073Y2 (en) | ||
| JP2518011Y2 (en) | Construction vehicle engine exhaust structure | |
| JP2871955B2 (en) | Cooling air exhaust system for industrial vehicles | |
| JP2018122719A (en) | Engine room lower structure | |
| JP4147879B2 (en) | Vehicle heat exchanger | |
| JPS60228179A (en) | Printer | |
| JPS6135452Y2 (en) | ||
| JPS5921941Y2 (en) | forklift |