JP2006177217A - Engine cooling device - Google Patents

Engine cooling device Download PDF

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Publication number
JP2006177217A
JP2006177217A JP2004369936A JP2004369936A JP2006177217A JP 2006177217 A JP2006177217 A JP 2006177217A JP 2004369936 A JP2004369936 A JP 2004369936A JP 2004369936 A JP2004369936 A JP 2004369936A JP 2006177217 A JP2006177217 A JP 2006177217A
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Japan
Prior art keywords
engine
drain member
drain
water
cooling device
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Granted
Application number
JP2004369936A
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Japanese (ja)
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JP4537193B2 (en
Inventor
Shinji Kato
慎士 加藤
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Mitsubishi Agricultural Machinery Co Ltd
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Mitsubishi Agricultural Machinery Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an engine cooling device of good operability by preventing cooling water from splashing on an operator at a time of replacement of cooling water, facilitating visual confirmation of a drain member. <P>SOLUTION: In the engine cooling device having an engine 3 and a radiator arranged in a frame 1, making communication between a water jacket in the engine 3 and the radiator by a cooling liquid circulation part including a water pump, a drain member 11 communicating to the cooling liquid circulation part is arranged on an outer surface of the frame 1, a drain opening of the drain member 11 is arranged obliquely toward engine outward and downward to facilitate visual confirmation of the drain member and to prevent cooling water from splashing on the operator, and to supply the engine cooling device of good operability. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、エンジンとラジエータを連通し、ラジエータで冷却された冷却水をエンジンに送ってエンジンを冷却するようにしたエンジン冷却装置に関する。   The present invention relates to an engine cooling apparatus that communicates an engine with a radiator and cools the engine by sending cooling water cooled by the radiator to the engine.

強制水冷エンジンでは、エンジンとラジエータを連通し、ラジエータで冷却された冷却水をエンジン内のウオータジャケット内に循環させてエンジンの冷却を行うようにしたエンジン冷却装置を備えている。このようなエンジン冷却装置においては、冬季には冷却水が凍結しないよう不凍液を添加した冷却水を用い、夏季には真水を冷却水として用いている。このため、年2回の冷却水の交換が必要になる。   The forced water cooling engine includes an engine cooling device that communicates the engine with a radiator and cools the engine by circulating cooling water cooled by the radiator through a water jacket in the engine. In such an engine cooling device, cooling water to which an antifreeze is added is used so that the cooling water does not freeze in winter, and fresh water is used as cooling water in summer. For this reason, it is necessary to replace the cooling water twice a year.

前記冷却水の交換時には、エンジンのウオータジャケットに形成された排水口と、ラジエータに形成された排水口を連通する配管の中途部に配置されたコックを設け、該コックに放水管を垂下させ、該コックを開くことにより該放水管を介して冷却水を下方に排水するようにしたエンジン冷却装置が公知である(例えば、特許文献1参照)。   At the time of replacement of the cooling water, a drain port formed in the water jacket of the engine and a cock arranged in the middle of the pipe communicating with the drain port formed in the radiator are provided, and the water discharge pipe is suspended in the cock. An engine cooling device is known in which cooling water is drained downward through the water discharge pipe by opening the cock (see, for example, Patent Document 1).

実開昭57−120715号公報(第3−4頁、第2図)Japanese Utility Model Publication No. 57-120715 (page 3-4, Fig. 2)

しかし、前記従来技術のように、垂下した放水管から冷却水を下方に向けて排出するものでは、ドレーン部材を目視により確認するのが困難になる場合がある。このような課題を解決するものとして、例えば、ドレーン部材の放水口を横方向に向けて冷却水を排出するようにしたものが使用されている。しかし、放水口を横方向に向けた場合には、排水時に冷却水が横方向に向けて飛散するため、飛散した冷却液が作業者にかかることがある。   However, it may be difficult to visually confirm the drain member when the cooling water is discharged downward from the hanging water discharge pipe as in the prior art. In order to solve such a problem, for example, a drain member that discharges cooling water with the water outlet of the drain member directed in the lateral direction is used. However, when the water discharge port is directed in the horizontal direction, the cooling water scatters in the horizontal direction during drainage, and thus the scattered cooling liquid may be applied to the operator.

前記の事情に鑑み、本発明は、作業者に冷却水がかかるのを防止すると共に、ドレーン部材の目視による確認を容易にし、かつ操作性の良いエンジン冷却装置を提供することを目的とする。   In view of the above circumstances, an object of the present invention is to provide an engine cooling device that prevents the cooling water from being applied to an operator, facilitates visual confirmation of a drain member, and has good operability.

前記の目的を達成するため、請求項1に係る本発明は、フレーム(1)にエンジン(3)及びラジエータ(5)を配置し、前記エンジン(3)内のウオータジャケットと前記ラジエータ(5)との間を、ウオータポンプ(6)を有する冷却液循環部にて連通してなる、エンジン冷却装置において、
前記フレーム(1)の外側面に、前記冷却液循環部に連通するドレーン部材(11)を配置し、
該ドレーン部材(11)の排出口(12)を、機体外方でかつ下方に向けて斜めに配置した、
ことを特徴とするエンジン冷却装置にある。
In order to achieve the above object, according to the present invention, an engine (3) and a radiator (5) are arranged on a frame (1), and a water jacket and the radiator (5) in the engine (3) are arranged. In the engine cooling device, which is communicated with each other by a coolant circulation part having a water pump (6).
On the outer surface of the frame (1), a drain member (11) communicating with the coolant circulation part is disposed,
The drain port (12) of the drain member (11) is arranged obliquely outside the machine body and downward.
The engine cooling device is characterized in that.

請求項2に係る本発明は、前記ドレーン部材(11)に接続するホース(17、18)を、前記フレーム(1)の外側面より機体内方に配置してなる、
請求項1記載のエンジン冷却装置にある。
The present invention according to claim 2 is configured such that the hose (17, 18) connected to the drain member (11) is disposed inward of the body from the outer surface of the frame (1).
The engine cooling device according to claim 1.

なお、前記した括弧内の符号等は、図面を参照するためのものであって、本発明を何ら限定するものではない。   The reference numerals in the parentheses are for reference to the drawings and do not limit the present invention.

請求項1に係る本発明によると、ドレーン部材の排出口を、機体外方でかつ下方に向けて斜めに配置したので、ドレーン部材を外した際、冷却液が横方向に飛散することがなく、作業者に該冷却液がかかることを防止することができると共に、バケツ等により該冷却液を容易かつ確実に回収することができ、更にドレーン部材排出口が真下に向いているものに比して、上記ドレーン部材を目視により容易に確認でき、該ドレーン部材の操作が容易となる。   According to the first aspect of the present invention, since the drain port of the drain member is arranged outwardly and obliquely downward, the coolant does not splash laterally when the drain member is removed. The cooling liquid can be prevented from being applied to an operator, and the cooling liquid can be easily and reliably collected by a bucket or the like, and the drain member discharge port is directly below. Thus, the drain member can be easily confirmed visually, and the operation of the drain member is facilitated.

請求項2に係る本発明によると、ドレーン部材に接続するホースが、フレーム外側面の機体内方に位置するので、ホースがフレームにより保護される。   According to the second aspect of the present invention, the hose connected to the drain member is located inward of the outer surface of the frame, so that the hose is protected by the frame.

以下、図面に基づき本発明の実施の形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図1乃至図4は、本発明の実施の形態を示すもので、図1は、強制水冷エンジンにおけるエンジン冷却装置の側面図、図2は、図1におけるドレーン部材の取付け部を示す正面図、図3は、ドレーン部材の斜視図、図4は、ドレーン部材の側面図である。   1 to 4 show an embodiment of the present invention, FIG. 1 is a side view of an engine cooling device in a forced water cooling engine, and FIG. 2 is a front view showing an attachment portion of a drain member in FIG. FIG. 3 is a perspective view of the drain member, and FIG. 4 is a side view of the drain member.

図1は、例えば、トラクタ等の農作業機におけるエンジン冷却装置を示し、図1、図2において、フレーム1は、フロントアクスル2に支持された前輪(図示せず)とリヤアクスル(図示せず)に支持された後輪(図示せず)によって支持されている。   FIG. 1 shows an engine cooling device in an agricultural working machine such as a tractor. In FIGS. 1 and 2, a frame 1 is attached to a front wheel (not shown) and a rear axle (not shown) supported by a front axle 2. It is supported by a supported rear wheel (not shown).

エンジン3は、前記フレーム1に固定され、内部に冷却用のウオータジャケット(図示せず)が形成され、該ウオータジャケットには、排水口(図示せず)が連通している。ラジエータ5は、前記エンジン3の前方(図1では紙面の右側)に位置するように前記フレーム1に固定され、前記エンジン3のウオータジャケットと連通するように配管で接続されると共に、排水口(図示せず)が連通している。   The engine 3 is fixed to the frame 1 and has a cooling water jacket (not shown) formed therein, and a water outlet (not shown) communicates with the water jacket. The radiator 5 is fixed to the frame 1 so as to be positioned in front of the engine 3 (on the right side in FIG. 1), connected to the water jacket of the engine 3 by a pipe, and a drain port ( (Not shown) communicate.

ウオータポンプ6は、前記エンジン3側に配置され、該エンジン3の出力により回転駆動されて、前記ラジエータ3内で冷却された冷却水を該エンジン5のウオータジャケットに強制的に送り込み、該エンジン3の強制冷却を行う。ファン7は、前記エンジン3とラジエータ5の間に位置するように前記ウオータポンプ6と一体的に配置され、該エンジン3の出力により回転駆動され、前記ラジエータ5を通して外気を吸引し、該ラジエータ5内の冷却水を冷却する。   The water pump 6 is disposed on the engine 3 side, is driven to rotate by the output of the engine 3, and forcibly feeds the cooling water cooled in the radiator 3 to the water jacket of the engine 5. Perform forced cooling. The fan 7 is disposed integrally with the water pump 6 so as to be positioned between the engine 3 and the radiator 5, is driven to rotate by the output of the engine 3, sucks outside air through the radiator 5, and the radiator 5 Cool the cooling water inside.

なお、前記エンジン3、ラジエータ5、ウオータポンプ6及びファン7は、図2に示すように、エンジン3を覆うボンネット8内に配置されている。   The engine 3, the radiator 5, the water pump 6 and the fan 7 are disposed in a hood 8 that covers the engine 3, as shown in FIG.

ドレーン部材11は、前期ボンネット8の内側に位置し、その排出口が機体の外方で、かつ斜め下方に向くように前記フレーム1に固定されている。前記ドレーン部材11は、図3、図4に示すように、排出口12が形成され、両側に接続口13a、13bが形成されたドレーン15と、ガイドレーン15の排出口12に螺合して排出口12を塞ぐプラグ16で構成されている。   The drain member 11 is located inside the first bonnet 8 and is fixed to the frame 1 so that the discharge port faces the outside of the machine body and obliquely downward. As shown in FIGS. 3 and 4, the drain member 11 is screwed into the drain 15 in which the discharge port 12 is formed and the connection ports 13 a and 13 b are formed on both sides, and the discharge port 12 of the guide lane 15. It is composed of a plug 16 that closes the discharge port 12.

図1に示すように、前記ドレーン15の前記接続口13aは、ホース17によって前記エンジン3のウオータジャケットの排水口に接続され、前記接続口13bは、ホース18によって前記ラジエータ5の排水口に接続されている。なお、前記各ホース17、18は、前記フレーム1の外側面より機体内方に配置されている。   As shown in FIG. 1, the connection port 13 a of the drain 15 is connected to the drain port of the water jacket of the engine 3 by a hose 17, and the connection port 13 b is connected to the drain port of the radiator 5 by a hose 18. Has been. Each of the hoses 17 and 18 is disposed inward of the body from the outer surface of the frame 1.

前記のような構成であるから、冷却液を交換する際にボンネット8を開けることなくドレーン部材11を視認することが容易である。そして、ドレーン15の斜め下方に向けて開口する排出口12の先に、バケツ等の冷却液の回収容器を設置してプラグ16を外すと、冷却液はドレーン15の排出口12から回収容器に向けて放出され、回収容器に回収される。   Since it is the above structures, it is easy to visually recognize the drain member 11 without opening the hood 8 when replacing the coolant. Then, when a cooling liquid recovery container such as a bucket is installed at the end of the discharge port 12 opened obliquely downward of the drain 15 and the plug 16 is removed, the cooling liquid is transferred from the discharge port 12 of the drain 15 to the collection container It is discharged toward and is collected in a collection container.

従って、ドレーンの排出口が下方に向けて開口している場合に比べ、ドレーン部材11を目視により容易に確認することができ、該ドレーン部材11の操作がよういとなる。また、ドレーンの排出口が機体の横方向に向けて開口する場合に比べ、冷却液の横方向への飛散をなくし、作業者に冷却液がかかるのを防止することができ、しかもドレーンを確実に回収することができる。   Therefore, compared with the case where the drain outlet is opened downward, the drain member 11 can be easily confirmed visually, and the drain member 11 can be operated. Compared to the case where the drain outlet opens in the lateral direction of the aircraft, it is possible to prevent the coolant from splashing in the lateral direction and prevent the coolant from being applied to the operator, and to ensure that the drain is discharged. Can be recovered.

また、エンジン3のウオータジャケットとドレーン部材11を接続するホース17と、ラジエータ5とドレーン部材11を接続するホース18を、それぞれフレーム1の機体内側に配置することにより、農作業車の走行時に障害物に接触しても各ホース17、18がフレーム1に機体内側にあるので、該フレーム1によって保護されホース17、18が損傷を受けることがない。   Further, the hose 17 for connecting the water jacket of the engine 3 and the drain member 11 and the hose 18 for connecting the radiator 5 and the drain member 11 are respectively arranged on the inner side of the machine body of the frame 1, thereby obstructing the farm vehicle. Since the hoses 17 and 18 are inside the fuselage in the frame 1 even if they come into contact with each other, they are protected by the frame 1 and the hoses 17 and 18 are not damaged.

強制水冷エンジンにおけるエンジン冷却装置の側面図である。It is a side view of the engine cooling device in a forced water cooling engine. 図1におけるドレーン部材の取付け部を示す正面図である。It is a front view which shows the attachment part of the drain member in FIG. ドレーン部材の斜視図である。It is a perspective view of a drain member. ドレーン部材の側面図である。It is a side view of a drain member.

符号の説明Explanation of symbols

1 フレーム
3 エンジン
5 ラジエータ
6 ウオータポンプ
11 ドレーン部材
12 排出口
17 ホース
18 ホース
1 Frame 3 Engine 5 Radiator 6 Water pump 11 Drain member 12 Discharge port 17 Hose 18 Hose

Claims (2)

フレームにエンジン及びラジエータを配置し、前記エンジン内のウオータジャケットと前記ラジエータとの間を、ウオータポンプを有する冷却液循環部にて連通してなる、エンジン冷却装置において、
前記フレームの外側面に、前記冷却液循環部に連通するドレーン部材を配置し、
該ドレーン部材の排出口を、機体外方でかつ下方に向けて斜めに配置した、
ことを特徴とするエンジン冷却装置。
In the engine cooling device, an engine and a radiator are arranged in a frame, and a water jacket in the engine and the radiator are communicated with each other through a coolant circulation unit having a water pump.
A drain member communicating with the coolant circulation part is disposed on the outer surface of the frame,
The drain port of the drain member is arranged obliquely outside the aircraft and downward.
An engine cooling device characterized by that.
前記ドレーン部材に接続するホースを、前記フレームの外側面より機体内方に配置してなる、
請求項1記載のエンジン冷却装置。
A hose connected to the drain member is disposed on the inside of the machine body from the outer surface of the frame.
The engine cooling device according to claim 1.
JP2004369936A 2004-12-21 2004-12-21 Engine cooling system Expired - Fee Related JP4537193B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004369936A JP4537193B2 (en) 2004-12-21 2004-12-21 Engine cooling system

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Application Number Priority Date Filing Date Title
JP2004369936A JP4537193B2 (en) 2004-12-21 2004-12-21 Engine cooling system

Publications (2)

Publication Number Publication Date
JP2006177217A true JP2006177217A (en) 2006-07-06
JP4537193B2 JP4537193B2 (en) 2010-09-01

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ID=36731554

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Application Number Title Priority Date Filing Date
JP2004369936A Expired - Fee Related JP4537193B2 (en) 2004-12-21 2004-12-21 Engine cooling system

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155034U (en) * 1978-04-19 1979-10-27
JPS57120715U (en) * 1981-01-20 1982-07-27
JPS6085120U (en) * 1983-11-15 1985-06-12 ヤンマー農機株式会社 combine engine equipment
JPH0658136U (en) * 1993-01-18 1994-08-12 ヤンマーディーゼル株式会社 Engine stall prevention equipment for construction machinery
JPH0848159A (en) * 1994-08-09 1996-02-20 Kubota Corp Water passage structure for engine cooling water of working vehicle
JPH094454A (en) * 1995-06-20 1997-01-07 Daihatsu Motor Co Ltd Water pump
JP2002070553A (en) * 2000-08-31 2002-03-08 Kawasaki Heavy Ind Ltd Water cooled v-type two-cylinder engine
JP2004116477A (en) * 2002-09-27 2004-04-15 Honda Motor Co Ltd Cooling system for small boat

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155034U (en) * 1978-04-19 1979-10-27
JPS57120715U (en) * 1981-01-20 1982-07-27
JPS6085120U (en) * 1983-11-15 1985-06-12 ヤンマー農機株式会社 combine engine equipment
JPH0658136U (en) * 1993-01-18 1994-08-12 ヤンマーディーゼル株式会社 Engine stall prevention equipment for construction machinery
JPH0848159A (en) * 1994-08-09 1996-02-20 Kubota Corp Water passage structure for engine cooling water of working vehicle
JPH094454A (en) * 1995-06-20 1997-01-07 Daihatsu Motor Co Ltd Water pump
JP2002070553A (en) * 2000-08-31 2002-03-08 Kawasaki Heavy Ind Ltd Water cooled v-type two-cylinder engine
JP2004116477A (en) * 2002-09-27 2004-04-15 Honda Motor Co Ltd Cooling system for small boat

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