JPH0311374Y2 - - Google Patents
Info
- Publication number
- JPH0311374Y2 JPH0311374Y2 JP1984134636U JP13463684U JPH0311374Y2 JP H0311374 Y2 JPH0311374 Y2 JP H0311374Y2 JP 1984134636 U JP1984134636 U JP 1984134636U JP 13463684 U JP13463684 U JP 13463684U JP H0311374 Y2 JPH0311374 Y2 JP H0311374Y2
- Authority
- JP
- Japan
- Prior art keywords
- muffler
- exhaust pipe
- exhaust
- engine
- pipe
- 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
- 230000007704 transition Effects 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 239000010902 straw Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 241000251169 Alopias vulpinus Species 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Combines (AREA)
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、エンジン排気ガスを機体後方へ導
くように構成したコンバインのエンジン排気装置
に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an engine exhaust system for a combine harvester configured to guide engine exhaust gas to the rear of the machine body.
従来のコンバインのエンジン排気装置として
は、例えば、実開昭50−87025号公報に開示され
たもののように、マフラー及び排気管を共に機体
フレームに沿わせて配設した構造のものが知られ
ていた。
As a conventional combine harvester engine exhaust system, one is known that has a structure in which both a muffler and an exhaust pipe are arranged along the fuselage frame, such as the one disclosed in Japanese Utility Model Application Publication No. 50-87025. Ta.
しかしながら、この種の構造のものにあつて
は、マフラー及び排気管が横向きに配設されるこ
とになるので、排ワラ屑等が堆積し易く、排気ガ
スの熱でその堆積した排ワラ屑等がくすぶつたり
発火したりする虞れが大である。 However, in this type of structure, since the muffler and exhaust pipe are arranged sideways, waste straw etc. tend to accumulate, and the heat of the exhaust gas causes the accumulated waste straw waste to be removed. There is a high risk that it will smolder or catch fire.
そこで、堆積物の発火等の不具合を抑制するた
めに、マフラーを縦向きに配設する構造のものが
考えられるが、第７図に示すように、マフラー８
からの排気ガスの排気管１０への移行箇所、並び
に排気ガスを外気を混合させて冷却するためのマ
フラー８の排気筒８Ａと排気管１０との間の空気
吸込口を、機体フレームに沿つた排気管１０設置
箇所に設けると、排気管１０自体対地的に低く位
置しているので、その移行箇所、空気吸込口から
泥水が排気管１０内に侵入し易くなつて、排気通
路を詰まらせてしまう虞れが大であるとともに、
前記移行箇所へ至るマフラー出口がわが横向きに
配設されるので、そのマフラー出口がわに堆積し
た排ワラ等がマフラー８からの熱で発火する可能
性があつた。 Therefore, in order to suppress problems such as ignition of deposits, a structure in which the muffler is arranged vertically has been considered, but as shown in Fig. 7, the muffler 8
The transition point of the exhaust gas from the air to the exhaust pipe 10, as well as the air inlet between the exhaust pipe 8A of the muffler 8 and the exhaust pipe 10 for cooling the exhaust gas by mixing it with outside air, are located along the fuselage frame. If installed at the location where the exhaust pipe 10 is installed, since the exhaust pipe 10 itself is located low relative to the ground, muddy water will easily enter the exhaust pipe 10 from the transition location and air intake port, clogging the exhaust passage. There is a high risk of it being lost, and
Since the muffler outlet leading to the transition point is arranged sideways, there is a possibility that the waste straw and the like accumulated on the muffler outlet may catch fire due to the heat from the muffler 8.
本考案は、上記実情に鑑みてなされたものであ
つて、マフラーからの排気ガスの排気管への移行
箇所から泥水が排気管内へ侵入すること、及び、
排気管等にふりかかつて堆積したワラ屑がくすぶ
つたり発火したりすることを抑制できるコンバイ
ンのエンジン排気装置の提供を目的とする。 The present invention was developed in view of the above-mentioned circumstances, and includes problems such as muddy water entering the exhaust pipe from the transition point of exhaust gas from the muffler to the exhaust pipe, and
To provide an engine exhaust device for a combine harvester capable of suppressing smoldering or ignition of straw waste once accumulated in an exhaust pipe, etc.
本考案にかかるコンバインのエンジン排気装置
は、上記目的を達成するために、冒記構造のもの
において、弾性クツシヨンを介して搭載されたエ
ンジンからの排気ガスを縦向きに設置したマフラ
ーの上部に導き、マフラーの下端から出た排気ガ
スを機体フレームに沿つて水平方向に延設した排
気管に導くよう構成し、前記排気管の前端部を、
前記機体フレームより上位となるよう上方に屈曲
して前記マフラーの下向きに開口した排気出口に
非接触状態に対向させるとともに、この対向部位
の外側を、マフラーの下部から下方に向けて延出
したスカート部で囲んで、前記マフラーの排気出
口と前記排気管の前端部との間に、前記排気管内
へ外気を導入する間隙を形成してあることを特徴
構成とする。
In order to achieve the above object, the engine exhaust system for a combine harvester according to the present invention has the structure described above, and guides exhaust gas from the mounted engine via an elastic cushion to the upper part of a vertically installed muffler. , configured to guide exhaust gas emitted from the lower end of the muffler to an exhaust pipe extending horizontally along the fuselage frame, the front end of the exhaust pipe being configured to
a skirt that is bent upward so as to be above the fuselage frame and faces the downwardly opened exhaust outlet of the muffler in a non-contact state, and extends downward from the lower part of the muffler on the outside of the opposing part; A gap for introducing outside air into the exhaust pipe is formed between the exhaust outlet of the muffler and the front end of the exhaust pipe.
かかる特徴構成による作用・効果は次の通りで
ある。 The functions and effects of this characteristic configuration are as follows.
すなわち、排気管の前端部を、機体フレームよ
り上位になるよう上方に屈曲してマフラーの下向
きに開口した排気出口に非接触状態で対向させて
あるので、マフラーからの排気ガスが排気管に移
行する箇所は対地的に高く位置することになつ
て、その移行箇所から泥水が排気管に侵入するこ
とが抑制されるとともに、スカート部でその移行
箇所を囲つていることで、より一層泥水の侵入が
抑制される。さらに、そのマフラーの排気出口
と、排気管の前端部との間の間隙より、排気管へ
外気を流入させるから、排気管に近いところで排
気ガスと外気とが混入されて排気管を通ることに
なつて、排気管温度を低下させ易い。
In other words, the front end of the exhaust pipe is bent upward so that it is above the aircraft frame and faces the downwardly-opening exhaust outlet of the muffler in a non-contact state, so that the exhaust gas from the muffler is transferred to the exhaust pipe. The transition point is located high relative to the ground, which prevents muddy water from entering the exhaust pipe from the transition point, and the transition point is surrounded by a skirt to further prevent muddy water from entering. is suppressed. Furthermore, since outside air is allowed to flow into the exhaust pipe through the gap between the exhaust outlet of the muffler and the front end of the exhaust pipe, the exhaust gas and outside air are mixed near the exhaust pipe and pass through the exhaust pipe. As a result, the exhaust pipe temperature tends to decrease.
従つて、本考案によれば、マフラーの排気出口
と排気管の前端部との間の間隙から泥水が侵入す
ることを防ぐことができるので、排気管が泥水等
の侵入で詰まることは回避されるとともに、排気
管を通る排気ガス温度の低下により、排気管の温
度も低いものにできて、排気管に堆積したワラ屑
等がくすぶつたり、発火したりする不具合を未然
に防止できるに至つた。
Therefore, according to the present invention, it is possible to prevent muddy water from entering through the gap between the exhaust outlet of the muffler and the front end of the exhaust pipe, thereby avoiding clogging of the exhaust pipe due to entry of muddy water, etc. At the same time, by lowering the temperature of the exhaust gas passing through the exhaust pipe, the temperature of the exhaust pipe can also be lowered, making it possible to prevent problems such as straw waste accumulated in the exhaust pipe from smoldering or catching fire. Ivy.
第２図は、コンバインの全体を示し、左右クロ
ーラ１，１を取付けた機体フレーム３に脱穀装置
２、エンジン６及び操縦部５が搭載されるととも
に、刈取部４が昇降自在に連結されている。
Fig. 2 shows the entire combine harvester, in which a threshing device 2, an engine 6, and a control section 5 are mounted on a body frame 3 to which left and right crawlers 1, 1 are attached, and a reaping section 4 is connected so as to be movable up and down. .
この考案においてはエンジン前方の排気マニホ
ルド７から後方のマフラー８へ短管９を介して導
かれた排気系統前半と、このマフラー以降の排気
管１０等の排気系統後半との接続部分に特徴があ
り、縦置きマフラー８の下向きに開口した排気出
口８ａに、排気管１０の前端部１０ａが機体フレ
ーム３より上位で非接触状態に対向させられてい
ると共に、この対向部位の外側が、マフラー８の
下部から下方へ延出したスカート部１１で包囲さ
れているのである。第３図のように排気管１０は
機体フレーム３，３の間に沿つて水平方向に延設
した状態で機体後端へ導き開口させてある。 This invention is characterized by the connection between the first half of the exhaust system, which is led from the exhaust manifold 7 at the front of the engine to the muffler 8 at the rear via a short pipe 9, and the second half of the exhaust system, which includes the exhaust pipe 10 after this muffler. The front end 10a of the exhaust pipe 10 is opposed to the downwardly opened exhaust outlet 8a of the vertical muffler 8 at a position higher than the fuselage frame 3 in a non-contact state. It is surrounded by a skirt portion 11 extending downward from the lower part. As shown in FIG. 3, the exhaust pipe 10 extends horizontally between the fuselage frames 3 and opens toward the rear end of the fuselage.
又、上記スカート部１１は第１図イのように直
筒状、又は第１図ロのように下拡がり形状のいず
れであつてもよく、要するに、マフラー排気出口
８ａと排気管前端部１０ａとのあいだに半径方
向、軸線方向、又はその両方向に隙間があり、こ
の隙間領域をスカート部１１が包囲していればよ
い。第１図イの場合について補足すると、マフラ
８の頂部には短管９を同心状に隙間Ｓをおいて挿
通した受入部８ｂがあり、マフラー本体は２重筒
状をなし、多孔の内筒８ｃにマニホルドからの短
管９が直結され、受入部８ｂが外筒８ｄに取付け
られている。従つて内外簡間を矢印Ｆの如く流下
する外気と内筒内のエンジン排気Ｅとは排気出口
８ａの領域で混合しつつ排気管１０へ進入する。
そしてスカート部１１とマフラー下部とのあいだ
の空間からは別の外気が矢印Ｇのようにエゼクタ
作用で吸引され排ガスの中へさらに混入する。 Further, the skirt portion 11 may have a straight cylindrical shape as shown in FIG. 1A, or a downwardly expanding shape as shown in FIG. It is only necessary that there is a gap between them in the radial direction, the axial direction, or both directions, and the skirt portion 11 surrounds this gap region. To supplement the case in Figure 1A, there is a receiving part 8b at the top of the muffler 8, into which a short pipe 9 is inserted concentrically with a gap S, and the muffler body has a double cylinder shape, with a porous inner cylinder. A short pipe 9 from the manifold is directly connected to 8c, and the receiving portion 8b is attached to the outer cylinder 8d. Therefore, the outside air flowing down the inner and outer sections as indicated by the arrow F and the engine exhaust E in the inner cylinder enter the exhaust pipe 10 while mixing in the region of the exhaust outlet 8a.
Then, from the space between the skirt portion 11 and the lower part of the muffler, other outside air is sucked in by the ejector action as shown by arrow G and further mixed into the exhaust gas.
第１図イ，ロのいずれの場合にも、エンジンと
一体的に振動するマフラー８が、機体と一体的に
振動する排気管１０へ振動遮断的に地上高大なる
個所で接続され、しかもこの接続部から外気を吸
入できる構成となつているのである。さらに、こ
の接続部にはスカートが垂設されているから、外
部からワラ屑などが入りこむ恐れもない。 In both cases of Fig. 1 A and B, the muffler 8, which vibrates integrally with the engine, is connected to the exhaust pipe 10, which vibrates integrally with the aircraft body, at a location with a high ground clearance for vibration isolation. The structure is such that outside air can be sucked in from the outside. Furthermore, since a skirt is provided vertically at this connection part, there is no risk of straw waste or the like getting in from the outside.
又、マフラー排気出口８ａと排気管端部１０ａ
との非接触的位置合わせを簡単に行えるように第
１図中に示す如く曲管１０Ａを排気管１０に差込
み連結してあり、この曲管１０Ａを矢印Ｔの如く
少し捩じり、あるいは矢印Ｕの如く前後動力させ
る位置合わせが簡単に行える。 In addition, the muffler exhaust outlet 8a and the exhaust pipe end 10a
In order to easily perform non-contact alignment with the exhaust pipe 10, a bent pipe 10A is inserted and connected to the exhaust pipe 10 as shown in FIG. Positioning can be easily done by moving forward and backward like U.
上記の振動遮断的接続について補足すれば、コ
ンバインが走行停止状態で脱穀装置のみがエンジ
ン出力プーリ６ａと脱穀駆動プーリP1を介し運
転されるときに、第５図の矢印Ｖ方向にエンジン
６が引寄せられ、あるいは、脱穀装置休止状態で
の走行ではミツシヨン駆動プーリP2を介して走
行系のみが駆動されエンジン６は矢印Ｗ方向に引
寄せられるから弾性クツシヨン１３，１３′の存
在にもかかわらずエンジンはその側面を機体に衝
突させ大きな振動を生ずるおそれがある。この場
合には排気系におけるマフラー排気出口８ａ又は
スカート部１１と排気管前端部１０ａとが衝突し
て騒音発生源となるほかこれら両部８ａ，１１，
１０ａの破損を来たすおそれがある。これを防止
するには第６図のようにエンジン６の前方の一方
の弾性クツシヨン１３の側に剛性の大きい弾性材
からなるストツパー１４を設け、エンジン後方の
他方の弾性クツシヨン１３′の側にもやはり少な
くとも衝当部が弾性材からなるストツパー１４を
設ければよい。符号１５はボンネツトを示す。 To supplement the vibration-isolating connection mentioned above, when the combine harvester is stopped and only the threshing device is operated via the engine output pulley 6a and the threshing drive pulley P1 , the engine 6 moves in the direction of the arrow V in FIG. When the thresher is pulled in or when the thresher is in a rest state, only the traveling system is driven via the mission drive pulley P2 and the engine 6 is pulled in the direction of the arrow W, despite the presence of the elastic cushions 13 and 13'. There is a risk that the engine will collide with the side of the aircraft, causing large vibrations. In this case, the muffler exhaust outlet 8a or skirt portion 11 in the exhaust system collides with the front end portion 10a of the exhaust pipe, causing a source of noise.
10a may be damaged. To prevent this, a stopper 14 made of a highly rigid elastic material is provided on the side of one elastic cushion 13 at the front of the engine 6, as shown in FIG. It is sufficient to provide a stopper 14 whose at least abutment portion is made of an elastic material. Reference numeral 15 indicates a bonnet.
図面は本考案に係るコンバインのエンジン排気
装置の実施例を示し、第１図イ，ロは一実施例の
要部を示す一部切欠側面図、第２図はコンバイン
全体を示す側面図、第３図は要部斜視図、第４図
は要部の後面図、第５図はエンジン搭載構造の概
略側面図、第６図はその具体的な側面図、第７図
はエンジン排気装置の参考例を示す側面図であ
る。
６……エンジン、８……マフラー、８ａ……排
気出口、１０……排気管、１０ａ……排気管前端
部、１１……スカート部、１３……弾性クツシヨ
ン。
The drawings show an embodiment of the engine exhaust system for a combine harvester according to the present invention. FIGS. Figure 3 is a perspective view of the main part, Figure 4 is a rear view of the main part, Figure 5 is a schematic side view of the engine mounting structure, Figure 6 is a detailed side view, and Figure 7 is a reference for the engine exhaust system. It is a side view which shows an example. 6...Engine, 8...Muffler, 8a...Exhaust outlet, 10...Exhaust pipe, 10a...Exhaust pipe front end, 11...Skirt portion, 13...Elastic cushion.
Claims (1)
たエンジン６からの排気ガスを縦向きに設置した
マフラー８の上部に導き、マフラー８の下端から
出た排ガスを機体フレーム３に沿つて水平方向に
延設した排気管１０に導くよう構成し、前記排気
管１０の前端部１０ａを、前記機体フレーム３よ
り上位となるよう上方に屈曲して前記マフラー８
の下向きに開口した排気出口８ａに非接触状態に
対向させるとともに、この対向部位の外側を、マ
フラー８の下部から下方に向けて延出したスカー
ト部１１で囲んで、前記マフラー８の排気出口８
ａと前記排気管１０の前端部１０ａとの間に、前
記排気管１０内へ外気を導入する間隙を形成して
あるコンバインのエンジン排気装置。 Exhaust gas from the mounted engine 6 is guided through elastic cushions 13 and 13' to the upper part of the muffler 8 installed vertically, and the exhaust gas exiting from the lower end of the muffler 8 is spread horizontally along the fuselage frame 3. The front end 10a of the exhaust pipe 10 is bent upward so as to be above the fuselage frame 3, and the muffler 8 is connected to the muffler 8.
The exhaust outlet 8a of the muffler 8 is made to face the exhaust outlet 8a which opens downward in a non-contact state, and the outside of this opposing portion is surrounded by a skirt portion 11 extending downward from the lower part of the muffler 8.
An engine exhaust system for a combine harvester, in which a gap for introducing outside air into the exhaust pipe 10 is formed between the front end 10a of the exhaust pipe 10 and the front end 10a of the exhaust pipe 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984134636U JPH0311374Y2 (en) | 1984-09-05 | 1984-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984134636U JPH0311374Y2 (en) | 1984-09-05 | 1984-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6149017U JPS6149017U (en) | 1986-04-02 |
| JPH0311374Y2 true JPH0311374Y2 (en) | 1991-03-19 |
Family
ID=30693143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984134636U Expired JPH0311374Y2 (en) | 1984-09-05 | 1984-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0311374Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103355055A (en) * | 2012-03-29 | 2013-10-23 | 井关农机株式会社 | Combine |
| JP2014124170A (en) * | 2012-12-27 | 2014-07-07 | Iseki & Co Ltd | Combine harvester |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2517367Y2 (en) * | 1990-04-09 | 1996-11-20 | 株式会社クボタ | Agricultural machine engine exhaust structure |
| CN1141660A (en) * | 1994-05-28 | 1997-01-29 | 金宗仟 | Weak ground reinforceing drain structure and method |
| JP4921893B2 (en) * | 2006-08-28 | 2012-04-25 | ヤンマー株式会社 | Combine |
| BRPI0911099A2 (en) * | 2008-04-18 | 2015-10-06 | Tenneco Automotive Operating | tail pipe exhaust cooling device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5087025U (en) * | 1973-12-04 | 1975-07-24 | ||
| JPS55165913U (en) * | 1979-05-17 | 1980-11-28 |
-
1984
- 1984-09-05 JP JP1984134636U patent/JPH0311374Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103355055A (en) * | 2012-03-29 | 2013-10-23 | 井关农机株式会社 | Combine |
| JP2014124170A (en) * | 2012-12-27 | 2014-07-07 | Iseki & Co Ltd | Combine harvester |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6149017U (en) | 1986-04-02 |
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