JPS6323537Y2 - - Google Patents
Info
- Publication number
- JPS6323537Y2 JPS6323537Y2 JP8327882U JP8327882U JPS6323537Y2 JP S6323537 Y2 JPS6323537 Y2 JP S6323537Y2 JP 8327882 U JP8327882 U JP 8327882U JP 8327882 U JP8327882 U JP 8327882U JP S6323537 Y2 JPS6323537 Y2 JP S6323537Y2
- Authority
- JP
- Japan
- Prior art keywords
- carburetor
- internal combustion
- cylinder
- combustion engine
- muffler
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 4
- 230000003584 silencer Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000005325 percolation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Description
【考案の詳細な説明】
本考案は、例えば携帯発電機の駆動源として用
いる特に水冷内燃機関の吸排気系冷却装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intake/exhaust system cooling device for a water-cooled internal combustion engine, which is used, for example, as a drive source for a portable generator.
上記水冷内燃機関を防音形とするため、例えば
防音材を裏張りした箱、或は防音材自体で構成し
た箱に水冷内燃機関を収容した場合、冷却水の放
熱器を箱外に配置したとしても、シリンダブロツ
ク・シリンダヘツド・オイルパン・排気系等から
の放射熱があるため、長時間運転していると防音
箱内の温度が上昇し、加えて伝導熱もあるため燃
料系にパーコレーシヨンを発生するおそれがあ
る。 In order to make the above-mentioned water-cooled internal combustion engine soundproof, for example, if the water-cooled internal combustion engine is housed in a box lined with soundproofing material or a box made of soundproofing material itself, and the cooling water radiator is placed outside the box. However, since there is radiant heat from the cylinder block, cylinder head, oil pan, exhaust system, etc., the temperature inside the soundproof box increases when the engine is operated for a long time. There is a risk of generation of shock.
機関を小形コンパクトに構成するため、吸気管
と排気管をシリンダの同一側に配置してそれぞれ
気化器及び消音器に接続した場合は尚更パーコレ
ーシヨンの問題がある。 If the intake pipe and the exhaust pipe are arranged on the same side of the cylinder and connected to the carburetor and the muffler, respectively, in order to make the engine small and compact, the problem of percolation is even more severe.
本考案は上記防音形機関のパーコレーシヨン防
止対策として、水冷内燃機関にも抱らず冷却フア
ンを設けて積極的に防音箱内の問題個所の換気を
行うようにしたものである。 In the present invention, as a measure to prevent percolation in the soundproof engine, a cooling fan is installed in the water-cooled internal combustion engine to actively ventilate problem areas within the soundproof box.
即ち吸気管１と排気管２をシリンダ３の同一側
に配置してそれぞれ気化器４及び消音器５に接続
し、機関全体を防音箱６に収容た水冷式の内燃機
関Ｅにおいて、吸気管１及び排気管２を囲み、更
に消音器収容室７を形成して外部に通じる一連の
ダクト８を設けると共に、気化器４の少なくとも
シリンダ３に面する側に遮熱板９を配置し、クラ
ンク軸１０にフアン１１を設けて、そのフアン１
１によつて取入れられる外気を上記ダクト８に導
くフアンカバー１２をフアン１１の周囲に設けた
ことを要旨とする。 That is, in a water-cooled internal combustion engine E in which the intake pipe 1 and the exhaust pipe 2 are arranged on the same side of the cylinder 3 and connected to a carburetor 4 and a muffler 5, respectively, and the entire engine is housed in a soundproof box 6, the intake pipe 1 A series of ducts 8 are provided surrounding the exhaust pipe 2 and further forming a muffler storage chamber 7 and leading to the outside, and a heat shield plate 9 is arranged at least on the side facing the cylinder 3 of the carburetor 4, 10 is provided with a fan 11, and the fan 1
The gist is that a fan cover 12 is provided around the fan 11 to guide outside air taken in by the fan 11 to the duct 8.
実施例は、本考案装置を実施した水冷内燃機関
Ｅを駆動源とする携帯発電機にして、発電機Ｇは
機関Ｅに直結され、車輪１３付の台枠１４に防振
的に搭載されている。 In this embodiment, a portable generator is driven by a water-cooled internal combustion engine E implementing the device of the present invention, and the generator G is directly connected to the engine E and mounted on an underframe 14 with wheels 13 in a vibration-proof manner. There is.
機関Ｅの上方に空気清浄器１５、発電機Ｇの上
方に燃料タンク１６、発電機Ｇの左右に消音器５
及び放熱器１７がそれぞれ配置され、放熱器１７
を除いて他は防音箱６に収容されている。箱６の
下面及び上面の複数ケ所に最少限の換気口１８，
１９，２０が開いている。 Air purifier 15 above engine E, fuel tank 16 above generator G, silencer 5 on the left and right of generator G
and a heat radiator 17 are arranged, respectively, and the heat radiator 17
Except for , the others are housed in a soundproof box 6. A minimum number of ventilation holes 18 are provided at multiple locations on the bottom and top surfaces of the box 6.
19 and 20 are open.
フアン１１は、空冷内燃機関と同様にクランク
軸１０と一体のフライホイール２１の前面に一体
に取付けられていて、カバー１２はそのフアン１
１の外周及び前後面を包囲してスクロール状に形
成され、カム軸駆動用のタイミングベルト２２の
カバーも兼ねている。タイミングベルト２２は冷
却水ポンプ２３の駆動も兼ねている。 The fan 11 is integrally attached to the front surface of a flywheel 21 that is integral with the crankshaft 10, similar to an air-cooled internal combustion engine, and the cover 12 is attached to the fan 1.
It is formed in a scroll shape surrounding the outer periphery and front and rear surfaces of 1, and also serves as a cover for the timing belt 22 for driving the camshaft. The timing belt 22 also serves to drive the cooling water pump 23.
ダクト８の前端は上記フアンカバー１２の後面
に接続し、穴２４で通じている。その穴２４は丁
度タイミングベルト２２と冷却水ポンプ２３の被
動プーリ２３１との接触部に面している。 The front end of the duct 8 is connected to the rear surface of the fan cover 12 and communicates with the hole 24. The hole 24 just faces the contact portion between the timing belt 22 and the driven pulley 231 of the cooling water pump 23.
ダクト８は吸気管１と排気管２をすべて包囲し
て消音器５の方に延び、消音器５の部分では拡径
して消音器収容室７を形成しながら防音箱６の後
面に達し開口している。 The duct 8 surrounds both the intake pipe 1 and the exhaust pipe 2 and extends toward the muffler 5, and expands in diameter at the muffler 5 to form a muffler storage chamber 7 while reaching the rear surface of the soundproof box 6 and opening. are doing.
遮熱板９は、気化器４のシリンダ３に面する側
と前後と下面を覆つて上記ダクト８の側面に固定
されている。即ち気化器４の上方及びシリンダ３
と反対側は開放されている。遮熱板９の底面９１
は受皿を兼ね、その最底部にドレーンチユーブ２
５が接続されている。 The heat shield plate 9 is fixed to the side surface of the duct 8 so as to cover the side of the carburetor 4 facing the cylinder 3, the front, rear, and lower surfaces thereof. That is, above the carburetor 4 and the cylinder 3.
and the other side is open. Bottom surface 91 of heat shield plate 9
doubles as a saucer, and there is a drain tube 2 at the bottom.
5 is connected.
クランク軸１０が回転すると、フアン１１によ
つてカバー１２の下部の穴１２１から外気が導入
され、その外気はカバー１２に案内されてタイミ
ングベルト２２を冷やしながら穴２４からダクト
８に流入し、排気管２を冷却し、更に消音器５を
冷却しながら外に排出される。 When the crankshaft 10 rotates, outside air is introduced from the hole 121 at the bottom of the cover 12 by the fan 11, and the outside air is guided by the cover 12 and flows into the duct 8 through the hole 24 while cooling the timing belt 22, and is exhausted. The tube 2 is cooled and the silencer 5 is cooled while being discharged to the outside.
気化器４に影響するシリンダブロツク・オイル
パン等からの放射熱は遮熱板９によつて遮断され
る。 Radiant heat from the cylinder block, oil pan, etc. that affects the carburetor 4 is blocked by the heat shield plate 9.
本考案は上記の構成にしたから、水冷内燃機関
Ｅを防音箱６に収容して防音形とした場合、機関
Ｅの吸気管１及び排気管２がシリンダ３の同一側
に配置されていても、排気管２及びそれに連なる
消音器５は外気で集中的に通風冷却される。従つ
て気化器４に対する排気管２の放射熱及び吸気管
１からの伝導熱の影響がなくなる。 Since the present invention has the above structure, when the water-cooled internal combustion engine E is housed in the soundproof box 6 to make it soundproof, even if the intake pipe 1 and the exhaust pipe 2 of the engine E are arranged on the same side of the cylinder 3. , the exhaust pipe 2 and the muffler 5 connected thereto are intensively ventilated and cooled with outside air. Therefore, the effects of radiant heat from the exhaust pipe 2 and conductive heat from the intake pipe 1 on the carburetor 4 are eliminated.
又遮熱板９による機関下部からの放射熱の遮断
作用と相まつて気化器４を含む燃料装置への熱影
響が減少し、パーコレーシヨン防止対策として効
果がある。 In addition, together with the effect of the heat shield plate 9 to block radiant heat from the lower part of the engine, the influence of heat on the fuel system including the carburetor 4 is reduced, which is effective as a measure to prevent percolation.
第１図は本考案装置を実施した携帯発電機の縦
断側面図、第２図はその縦断背面図、第３図は本
考案装置の要部を示す一部縦断正面図、第４図は
その縦断側面図。
１は吸気管、２は排気管、３はシリンダ、４は
気化器、５は消音器、６は防音箱、７は消音器収
容室、８はダクト、９は遮熱板、１０はクランク
軸、１１はフアン、１２はフアンカバー、Ｅは水
冷内燃機関。
Fig. 1 is a vertical side view of a portable generator implementing the device of the present invention, Fig. 2 is a longitudinal rear view thereof, Fig. 3 is a partially longitudinal front view showing the main parts of the device of the present invention, and Fig. 4 is its longitudinal side view. Longitudinal side view. 1 is an intake pipe, 2 is an exhaust pipe, 3 is a cylinder, 4 is a carburetor, 5 is a silencer, 6 is a soundproof box, 7 is a silencer storage chamber, 8 is a duct, 9 is a heat shield, 10 is a crankshaft , 11 is a fan, 12 is a fan cover, and E is a water-cooled internal combustion engine.
Claims (1)
それぞれ気化器及び消音器に接続し、機関全体を
防音箱に収容した水冷式の内燃機関において、吸
気管及び排気管を囲み、更に消音器収容室を形成
して外部に通じる一連のダクトを設けると共に、
気化器の少なくともシリンダに面する側に遮熱板
を配置し、クランク軸に設けたフアンによつて取
入れられる外気を上記ダクトに導くフアンカバー
を設けた水冷内燃機関の吸排気系冷却装置。 In a water-cooled internal combustion engine in which the intake pipe and exhaust pipe are placed on the same side of the cylinder and connected to a carburetor and a muffler, respectively, and the entire engine is housed in a soundproof box, the intake pipe and exhaust pipe are surrounded and a muffler is installed. Along with providing a series of ducts forming a containment chamber and leading to the outside,
An intake/exhaust system cooling device for a water-cooled internal combustion engine, comprising a heat shield plate disposed at least on the side facing the cylinder of a carburetor, and a fan cover for guiding outside air taken in by a fan provided on the crankshaft to the duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8327882U JPS58186120U (en) | 1982-06-04 | 1982-06-04 | Air intake and exhaust system cooling system for water-cooled internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8327882U JPS58186120U (en) | 1982-06-04 | 1982-06-04 | Air intake and exhaust system cooling system for water-cooled internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58186120U JPS58186120U (en) | 1983-12-10 |
| JPS6323537Y2 true JPS6323537Y2 (en) | 1988-06-28 |
Family
ID=30092294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8327882U Granted JPS58186120U (en) | 1982-06-04 | 1982-06-04 | Air intake and exhaust system cooling system for water-cooled internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58186120U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0729214Y2 (en) * | 1986-12-23 | 1995-07-05 | 株式会社クボタ | Forced air cooling vertical axis engine |
| JP4977657B2 (en) * | 2008-06-27 | 2012-07-18 | 本田技研工業株式会社 | Engine driven generator |
-
1982
- 1982-06-04 JP JP8327882U patent/JPS58186120U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58186120U (en) | 1983-12-10 |
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