JPH11263131A - Engine cooling system for vehicle - Google Patents

Engine cooling system for vehicle

Info

Publication number
JPH11263131A
JPH11263131A JP6697098A JP6697098A JPH11263131A JP H11263131 A JPH11263131 A JP H11263131A JP 6697098 A JP6697098 A JP 6697098A JP 6697098 A JP6697098 A JP 6697098A JP H11263131 A JPH11263131 A JP H11263131A
Authority
JP
Japan
Prior art keywords
radiator
fan
cooling
vehicle
floor
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.)
Pending
Application number
JP6697098A
Other languages
Japanese (ja)
Inventor
Yoshiaki Ito
東 良 晃 伊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UD Trucks Corp
Original Assignee
UD Trucks Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UD Trucks Corp filed Critical UD Trucks Corp
Priority to JP6697098A priority Critical patent/JPH11263131A/en
Publication of JPH11263131A publication Critical patent/JPH11263131A/en
Pending legal-status Critical Current

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce a cab floor by slantedly attaching a radiator, and connecting a fan rotary shaft through a universal joint to a fan drive shaft with the rotational surface of a cooling fan in parallel with the radiator. SOLUTION: A radiator 5 is attached to the lower part of the floor 1a of a cab 1 so as to be inclined backward by α with respect to a vertical line. Also, the shaft 10a of a fan 10 provided in parallel with the radiator 5 is connected through a constant velocity universal joint 12 as to the drive shaft 11 of the fan. Since the radiator 5 is attached so as to be inclined backward by α, compared with the case of upright attaching, the floor 1a is lowered by H, and boarding/alighting is improved. Since the radiator 5 is inclined backward, cooling air W passed through the radiator 5 is blasted obliquely downward, and is passed under an engine 7. Thus, resistance after the passage through the radiator 5 is reduced to increase a cooling effect, and the temperature rise of an engine room is prevented.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、車両用水冷式エン
ジンを冷却するウオータポンプとラジエータとファンと
で構成されている冷却装置に関する。
The present invention relates to a cooling device comprising a water pump, a radiator, and a fan for cooling a water-cooled engine for a vehicle.

【0002】[0002]

【従来の技術】エンジンの前方にラジエータを設け、エ
ンジンで駆動されるウオータポンプとラジエータの後方
に回転自在に設けられたファンとで構成されている冷却
装置は知られている。
2. Description of the Related Art There is known a cooling device having a radiator provided in front of an engine, a water pump driven by the engine, and a fan rotatably provided behind the radiator.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記の
技術においては、特にトラック等において広く採用され
ているキャブオーバ型車両の場合、例えば図2を参照し
て、キャブ1の床1bの地上からの高さは、ラジエータ
5には限界地上高Tの制限があるためラジエータ5の高
さで決まり、キャブの高い床は乗降性が悪いため、低い
床を実現するためにラジエータを傾斜させる技術が提案
されている。ここで、符号2はドア、3はフロントウイ
ンド、4はサイドウインド、8はクラッチハウジング、
9はトランスミッションをそれぞれ示している。
However, in the above technique, particularly in the case of a cab-over type vehicle widely used in trucks and the like, for example, referring to FIG. The radiator 5 is limited by the height of the radiator 5 due to the limit of the ground clearance T. Since a high cab floor is poor in getting on and off, a technique for inclining the radiator to realize a low floor is proposed. ing. Here, 2 is a door, 3 is a front window, 4 is a side window, 8 is a clutch housing,
Reference numeral 9 denotes a transmission.

【0004】一方、ラジエータの配置や取り付け角の変
化に対応するため、ファン駆動のために電動モータによ
る方法或は油圧モータによる方法が広く採用されている
が、大型車の場合はファンの駆動力が大であり、電動モ
ータでは大きく重いという問題があり、油圧ファンは油
圧ポンプや配管等面倒で厄介である。
On the other hand, an electric motor or a hydraulic motor is widely used for driving the fan in order to cope with a change in the arrangement and the mounting angle of the radiator. However, there is a problem that the electric motor is large and heavy, and the hydraulic fan is troublesome because the hydraulic pump and the piping are troublesome.

【0005】また、特開平6−328952号公報の技
術が開示されているが、本願の課題を解決するものでな
い。
[0005] The technique disclosed in Japanese Patent Application Laid-Open No. 6-328952 is disclosed, but does not solve the problem of the present application.

【0006】したがって、本発明は、ファンの回転軸を
ラジエータとともに傾斜させることによりキャブの地上
高を低下させ、ラジエータを通過した冷却気流をエンジ
ンの下方に導いて冷却効率を向上する車両用エンジンの
冷却装置を提供することを目的としている。
SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a vehicle engine which lowers the height of the cab by tilting the rotation axis of the fan together with the radiator and guides the cooling airflow passing through the radiator to a position below the engine to improve the cooling efficiency. It is intended to provide a cooling device.

【0007】[0007]

【課題を解決するための手段】本発明によれば、車両用
水冷式エンジンを冷却するウオータポンプとラジエータ
とファンとで構成されている冷却装置において、ラジエ
ータの設置高さを低くするためラジエータを傾斜させて
取り付け、そのラジエータに冷却ファンの回転面が平行
となるようファン回転軸が自在継手を介してファン駆動
軸に接続されている。
According to the present invention, in a cooling system comprising a water pump for cooling a water-cooled engine for a vehicle, a radiator, and a fan, the radiator for reducing the installation height of the radiator is provided. The cooling fan is attached to the fan drive shaft via a universal joint such that the cooling fan rotates parallel to the radiator.

【0008】また、本発明によれば、前記自在継手が等
速ジョイントで構成されていることが好ましい。
According to the present invention, it is preferable that the universal joint is constituted by a constant velocity joint.

【0009】本発明は上記のように構成されており、キ
ャブオーバ型車両においてラジエータ上端の高さを下げ
ることが出来、したがってキャブ床面が低下出来るため
乗降性が向上し、さらに、ファン後方の風の抜けがよく
なるので冷却効率が向上する。
The present invention is configured as described above. In a cab-over type vehicle, the height of the upper end of the radiator can be reduced, so that the cab floor can be lowered, so that the getting on and off property is improved. The cooling efficiency is improved because the removal of air is improved.

【0010】[0010]

【発明の実施の形態】以下、図面を参照して、本発明の
実施の形態を説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0011】図において、従来技術と同じ機能を有する
部材には同じ符号を付して重複説明は省略する。
In the drawings, members having the same functions as those of the prior art are denoted by the same reference numerals, and redundant description will be omitted.

【0012】図1において、キャブ1の床面1aの下方
にはラジエータ5が垂直に対してαだけ後方に傾斜して
取り付けられている。そして、そのラジエータ5には傾
斜したラジエータ5に平行に設けられたファン10に適
合するように上方にオフセットしたファンシュラウド6
が取り付けられ、そのファンシュラウド6には図示を省
略しているファンを回転自在に軸支するベアリングが取
り付けられている。
In FIG. 1, a radiator 5 is attached below the floor 1a of the cab 1 so as to be inclined rearward by α with respect to the vertical. The radiator 5 has a fan shroud 6 offset upward to fit a fan 10 provided in parallel to the inclined radiator 5.
The fan shroud 6 is provided with a bearing for rotatably supporting a fan (not shown).

【0013】また、ファン10のシャフト10aは自在
継手である従来公知の等速ジョイント12を介してファ
ンの駆動軸11に接続されている。そのファン駆動軸1
1はエンジン7の図示しないクランクシャフト、或はク
ランクシャフトで駆動されている図示しない例えばウオ
ータポンプのシャフト等、車両レイアウト上で最も都合
がよい軸を選択すればよく、特に限定されるものでな
い。また、等速ジョイントを用いているので、ファンが
速度変動により振動して騒音源となることがない。
The shaft 10a of the fan 10 is connected to a drive shaft 11 of the fan via a conventionally known constant velocity joint 12 which is a universal joint. The fan drive shaft 1
Reference numeral 1 may be a shaft that is most convenient on the vehicle layout, such as a crankshaft (not shown) of the engine 7 or a shaft of a water pump (not shown) driven by the crankshaft, and is not particularly limited. Further, since the constant velocity joint is used, the fan does not vibrate due to the speed fluctuation and becomes a noise source.

【0014】以下、作用効果について説明する。The operation and effect will be described below.

【0015】ラジエータ5はαだけ後方に傾斜して取り
付けられているので、直立して取り付けられた従来のラ
ジエータ5(図2参照)に対する床面1bに対してラジ
エータ5が傾斜している場合のキャブの床面1aはHだ
け低く出来、乗降性が向上する。
Since the radiator 5 is mounted to be inclined rearward by α, the radiator 5 in the case where the radiator 5 is inclined with respect to the floor 1b with respect to the conventional radiator 5 (see FIG. 2) which is mounted upright. The cab floor surface 1a can be lowered by H, and the getting on and off property is improved.

【0016】また、ラジエータ5が後方に傾斜している
ため、ラジエータ5を通過した冷却空気Wは斜め下方に
吹き出して、エンジン7の下方を通過するので、従来の
技術に比べラジエータ5通過後の抵抗が減少し、冷却効
率が向上するとともにエンジンルームの温度上昇を防止
する効果がある。
Further, since the radiator 5 is inclined backward, the cooling air W passing through the radiator 5 blows out obliquely downward and passes below the engine 7, so that the cooling air W after passing through the radiator 5 is lower than in the prior art. This has the effect of reducing the resistance, improving the cooling efficiency, and preventing the temperature in the engine room from rising.

【0017】[0017]

【発明の効果】本発明は上記のように構成されており、
キャブオーバ型車両においてラジエータ上端の高さを下
げることが出来、したがってキャブ床面が低下出来るた
め乗降性が向上し、さらに、ファン後方の風の抜けがよ
くなるので冷却効率が向上する。
The present invention is configured as described above,
In a cab-over type vehicle, the height of the upper end of the radiator can be reduced, and thus the cab floor can be lowered, so that getting on and off can be improved. Further, the ventilation behind the fan can be improved, so that the cooling efficiency can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施の形態を示す車両前部の側面
図。
FIG. 1 is a side view of a vehicle front showing an embodiment of the present invention.

【図2】従来技術の例を示す車両前部の側面図。FIG. 2 is a side view of a vehicle front part showing an example of the prior art.

【符号の説明】[Explanation of symbols]

1・・・キャブ 5・・・ラジエータ 6・・・ファンシュラウド 10・・・ファン 11・・・駆動軸 12・・・自在継手 H・・・キャブ床面の高さの差 DESCRIPTION OF SYMBOLS 1 ... Cab 5 ... Radiator 6 ... Fan shroud 10 ... Fan 11 ... Drive shaft 12 ... Universal joint H ... Difference in height of cab floor surface

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 車両用水冷式エンジンを冷却するウオー
タポンプとラジエータとファンとで構成されている冷却
装置において、ラジエータの設置高さを低くするためラ
ジエータを傾斜させて取り付け、そのラジエータに冷却
ファンの回転面が平行となるようファン回転軸が自在継
手を介してファン駆動軸に接続されていることを特徴と
する車両用エンジン冷却装置。
1. A cooling system comprising a water pump, a radiator, and a fan for cooling a water-cooled engine for a vehicle, wherein the radiator is mounted to be inclined to reduce the installation height of the radiator, and the cooling fan is mounted on the radiator. An engine cooling device for a vehicle, wherein a fan rotation shaft is connected to a fan drive shaft via a universal joint such that rotation surfaces of the fan rotation shaft are parallel to each other.
【請求項2】 前記自在継手が等速ジョイントで構成さ
れている請求項1記載の車両用エンジンの冷却装置。
2. The cooling system for a vehicle engine according to claim 1, wherein said universal joint comprises a constant velocity joint.
JP6697098A 1998-03-17 1998-03-17 Engine cooling system for vehicle Pending JPH11263131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6697098A JPH11263131A (en) 1998-03-17 1998-03-17 Engine cooling system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6697098A JPH11263131A (en) 1998-03-17 1998-03-17 Engine cooling system for vehicle

Publications (1)

Publication Number Publication Date
JPH11263131A true JPH11263131A (en) 1999-09-28

Family

ID=13331402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6697098A Pending JPH11263131A (en) 1998-03-17 1998-03-17 Engine cooling system for vehicle

Country Status (1)

Country Link
JP (1) JPH11263131A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020048738A (en) * 2000-12-18 2002-06-24 류정열 Apparatus for cooling an engine in a bus
EP3081421A3 (en) * 2015-04-17 2017-01-04 Vermeer Manufacturing Company An engine cooling system having a low speed cooling package fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020048738A (en) * 2000-12-18 2002-06-24 류정열 Apparatus for cooling an engine in a bus
EP3081421A3 (en) * 2015-04-17 2017-01-04 Vermeer Manufacturing Company An engine cooling system having a low speed cooling package fan
US10294850B2 (en) 2015-04-17 2019-05-21 Vermeer Manufacturing Company Engine cooling system having a low speed cooling package fan

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