JPH0573894B2 - - Google Patents
Info
- Publication number
- JPH0573894B2 JPH0573894B2 JP60225592A JP22559285A JPH0573894B2 JP H0573894 B2 JPH0573894 B2 JP H0573894B2 JP 60225592 A JP60225592 A JP 60225592A JP 22559285 A JP22559285 A JP 22559285A JP H0573894 B2 JPH0573894 B2 JP H0573894B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- exhaust
- water
- heat
- condensed water
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 64
- 230000003584 silencer Effects 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust Silencers (AREA)
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、排気と水との熱交換を行なう熱交換
器を設けて排気熱を回収するようにしたエンジン
の排気系構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an exhaust system structure for an engine that is provided with a heat exchanger for exchanging heat between exhaust gas and water to recover exhaust heat.
(従来技術)
エンジンの排気熱を回収して暖房あるいはヒー
トポンプ回路の熱源として利用する装置におい
て、排気熱回収用熱交換器を設けたエンジンの排
気系構造としては、従来から例えば実開昭60−
1911号公報に示されるごとく、排気マニホールド
をウオータジヤケツトで囲んだ構造のもの、すな
わち、排気マニホールドをその内部の気体の流通
を妨げることなく、熱交換用ケースにて包囲して
密閉空間を形成し、この密閉空間に熱媒流体を流
入および流出させるよう構成したものが知られて
いる。(Prior art) In a device that recovers engine exhaust heat and uses it as a heat source for heating or a heat pump circuit, the engine exhaust system structure equipped with a heat exchanger for exhaust heat recovery has conventionally been used, for example, in the 1980s.
As shown in Publication No. 1911, a structure in which the exhaust manifold is surrounded by a water jacket, that is, the exhaust manifold is surrounded by a heat exchange case without interfering with the flow of gas inside the exhaust manifold to form a sealed space. However, there are known devices configured to allow a heat transfer fluid to flow into and out of this closed space.
ところで、熱交換器としての排気マニホールド
においては、排気が冷却され排気中の水分が凝縮
し易く、その場合、酸性度の高い凝縮水が発生す
るために、これが排気マニホールドの内に溜る
と、その内壁は腐食を受け易く壁に穴が開き易
い。また熱回収効果を高めるために、排気マニホ
ールドの排気下流側にさらに熱交換器を設けるこ
とも提案されているが、この場合には熱交換器で
の熱回収の結果、多量の凝縮水が発生し易く上記
問題点は顕著となる。 By the way, in the exhaust manifold as a heat exchanger, the exhaust gas is cooled and moisture in the exhaust gas tends to condense.In that case, highly acidic condensed water is generated, and if this condensed water accumulates in the exhaust manifold, it will cause damage. Internal walls are susceptible to corrosion and holes are easily formed in the walls. In order to improve the heat recovery effect, it has also been proposed to install an additional heat exchanger downstream of the exhaust manifold, but in this case, a large amount of condensed water is generated as a result of heat recovery in the heat exchanger. The above problems become more obvious.
このように排気マニホールドあるいは熱交換器
の壁に穴が開くと、熱交換用の水が排気マニホー
ルドを介してエンジン内に流入したり、あるいは
排ガスが水回路に混入することになる。 If a hole is created in the exhaust manifold or the wall of the heat exchanger, water for heat exchange may flow into the engine through the exhaust manifold, or exhaust gas may enter the water circuit.
また、排気通路としては、排気マニホールド、
熱交換器、サイレンサが順次接続されることにな
るが、熱交換器内で発生した凝縮水がサイレンサ
に流入してそれを腐食することがないようにする
一方、サイレンサ内で生じた凝縮水も排気上流側
の熱交換器等の内部に逆流して入らないような配
慮が必要となる。 In addition, as an exhaust passage, an exhaust manifold,
The heat exchanger and silencer will be connected in sequence, but while ensuring that the condensed water generated in the heat exchanger does not flow into the silencer and corrode it, the condensed water generated in the silencer should also be connected. Care must be taken to prevent backflow into the heat exchanger, etc. on the upstream side of the exhaust gas.
(発明の目的)
本発明は、上記従来の問題点に鑑みなされたも
ので、熱交換器の内部に凝縮水が発生しても、そ
れを内部に溜めずに排出し、かつ、凝縮水がサイ
レンサに流入することを防止でき、また、サイレ
ンサから凝縮水が熱交換器内へ逆流入することを
防止でき、これら部品が腐食を受けることを回避
し、ひいてはエンジンの信頼性の向上を図れるエ
ンジンの排気系構造を提供するものである。(Object of the Invention) The present invention has been made in view of the above-mentioned conventional problems. Even if condensed water is generated inside a heat exchanger, it is discharged without accumulating it inside, and the condensed water is An engine that can prevent condensed water from flowing into the silencer and from flowing back into the heat exchanger from the silencer, avoiding corrosion of these parts and improving engine reliability. This provides an exhaust system structure.
(発明の構成)
本発明は、排気熱を回収する熱交換器を設けて
なるエンジンの排気系構造において、エンジンの
排気通路に排気と水との熱交換を行なう熱交換器
を設け、この熱交換器の下流側の排気通路を下方
に延ばし、かつ反転して上方へ延長し、その先端
にサイレンサを接続し、さらに上記熱交換器とサ
イレンサ間の排気通路最下部に凝縮水ドレン機構
を配設したものである。(Structure of the Invention) The present invention provides an engine exhaust system structure including a heat exchanger for recovering exhaust heat. The exhaust passage on the downstream side of the exchanger is extended downward, then reversed and extended upward, a silencer is connected to the tip thereof, and a condensed water drain mechanism is arranged at the bottom of the exhaust passage between the heat exchanger and the silencer. It was established.
この構成により、熱交換器内に凝縮水が発生し
ても、内部に溜まることなく、凝縮水ドレン機構
を通して外部に排出され、また凝縮水がサイレン
サに流入することも防止され、しかもサイレンサ
にて発生した凝縮水が熱交換器側へ逆流入するこ
とがなくなるものである。 With this configuration, even if condensed water occurs in the heat exchanger, it will not accumulate inside and will be discharged to the outside through the condensed water drain mechanism, and will also prevent condensed water from flowing into the silencer. This prevents the generated condensed water from flowing back into the heat exchanger side.
(実施例)
第1図、第2図および第3図はそれぞれ本発明
を実施したエンジンの後面、左側面、および右側
面を示し、1はエンジン本体、2はエンジン本体
1の側面上方に設けられ排気マニホールドの外周
を水通路で囲む構成とし排気と冷却水とが対向流
として流れる排気マニホールド熱交換器、3は上
記排気マニホールド熱交換器2の排気下流側に設
けられ排気と水との熱交換を行なう熱交換器で、
この熱交換器3はエンジン本体1の後面であつて
排気マニホールド熱交換器2の高さ位置よりも低
い位置に設けられ、しかもこの熱交換器3と排気
マニホールド熱交換器2との接続部4をエンジン
本体1の上方に位置させるとともに、熱交換器3
の排気下流側部分を下方に傾斜させている。上記
接続部4は排気マニホールド熱交換器2および熱
交換器3のそれぞれに設けたフランジ4a,4b
をボルト5にて連結することにより構成されてい
る。(Example) Figures 1, 2, and 3 respectively show the rear, left, and right sides of an engine in which the present invention is implemented. The exhaust manifold heat exchanger has a structure in which the outer periphery of the exhaust manifold is surrounded by a water passage, and the exhaust manifold and the cooling water flow in counterflow. A heat exchanger that exchanges
This heat exchanger 3 is provided on the rear surface of the engine main body 1 at a position lower than the height position of the exhaust manifold heat exchanger 2, and in addition, the connection portion 4 between this heat exchanger 3 and the exhaust manifold heat exchanger 2 is located above the engine body 1, and the heat exchanger 3
The downstream side of the exhaust gas is sloped downward. The connecting portions 4 are flanges 4a and 4b provided on the exhaust manifold heat exchanger 2 and the heat exchanger 3, respectively.
are connected by bolts 5.
また、上記熱交換器3の傾斜下端部に設けられ
た排気出口3cには下方に延びる排気管6aが接
続され、さらにこの排気管6aの途中から分岐し
て排気管路6bが接続されている。7は上記排気
管6aの最下端に連結された凝縮水ドレン機構
で、8は上記熱交換器3の上方に設けられ上記排
気管路6bを通つて排ガスが流入するサイレンサ
である。 Further, an exhaust pipe 6a extending downward is connected to the exhaust outlet 3c provided at the inclined lower end of the heat exchanger 3, and an exhaust pipe line 6b is further connected to the exhaust pipe 6a branching from the middle of the exhaust pipe 6a. . 7 is a condensed water drain mechanism connected to the lowermost end of the exhaust pipe 6a, and 8 is a silencer provided above the heat exchanger 3 into which exhaust gas flows through the exhaust pipe 6b.
上記凝縮水ドレン機構7の一実施例構成を第4
図、第5図により説明すると、円筒状のケース7
aの下端近傍にフロート受け部7bが設けられ、
ケース7a内部にフロート7cが昇降自在に収納
され、このフロート7cと最下端のドレン排出口
7dとでフロートバルブが構成されている。ま
た、ケース7aの上部近傍にはフロート7cがド
レンの溜まりにより所定値以上浮上した時に作動
するレベル警告用のセンサ7eが取付けられてい
る。 A fourth embodiment of the configuration of the condensed water drain mechanism 7 described above is described below.
To explain with reference to Fig. 5, the cylindrical case 7
A float receiving portion 7b is provided near the lower end of a,
A float 7c is housed inside the case 7a so as to be movable up and down, and the float 7c and the drain outlet 7d at the lowermost end constitute a float valve. Further, a level warning sensor 7e is attached near the top of the case 7a, which is activated when the float 7c rises above a predetermined level due to drainage accumulation.
次に熱交換器3の構造について第6図〜第8図
により説明する。 Next, the structure of the heat exchanger 3 will be explained with reference to FIGS. 6 to 8.
熱交換器3は、排気通路として排気入口3a、
排気通路3b、排気出口3cを有し、また冷却水
通路として水入口3d、熱交換器コア3e、戻り
水通路3fおよび水出口3gを有する。そして熱
交換器コア3eの外周に排気通路3bが位置し、
またこの排気通路3bの外周に戻り水通路3fが
位置し、排気と水とは三層構造にて熱交換し得る
構成とされている。また、排気入口3aと水出口
3gとは共にフランジ4b部分に設けられ排気マ
ニホールド熱交換器2側のフランジ4aに連結さ
れている。 The heat exchanger 3 includes an exhaust inlet 3a as an exhaust passage;
It has an exhaust passage 3b and an exhaust outlet 3c, and also has a water inlet 3d as a cooling water passage, a heat exchanger core 3e, a return water passage 3f, and a water outlet 3g. An exhaust passage 3b is located on the outer periphery of the heat exchanger core 3e,
Further, a return water passage 3f is located on the outer periphery of the exhaust passage 3b, so that the exhaust gas and water can exchange heat in a three-layer structure. Further, both the exhaust inlet 3a and the water outlet 3g are provided on the flange 4b and connected to the flange 4a on the exhaust manifold heat exchanger 2 side.
そして、排気の流れは、排気マニホールド熱交
換器2から接続部4を介して熱交換器3の排気入
口3a、排気通路3b、排気出口3cを経て排気
管6a、排気管路6bを通過し、サイレンサ8の
入口8aより排気口8bに至るものとなる。ま
た、冷却水の流れは、熱交換器3の水入口3dか
ら熱交換器コア3e、戻り水通路3f、水出口3
gを経て、接続部4を介して排気マニホールド熱
交換器2に流入し、さらにこの排気マニホールド
熱交換器2から水管路9a(第2図)、ウオータポ
ンプ10を経てエンジン本体1の内部のウオータ
ジヤケツトに流入し、さらにサーモスタツトおよ
び水管路9bを経て水出口9cに至るものであ
る。 Then, the flow of exhaust gas passes from the exhaust manifold heat exchanger 2 through the connection part 4, through the exhaust inlet 3a, exhaust passage 3b, and exhaust outlet 3c of the heat exchanger 3, and then through the exhaust pipe 6a and exhaust pipe line 6b, The silencer 8 extends from the inlet 8a to the exhaust port 8b. In addition, the flow of cooling water is from the water inlet 3d of the heat exchanger 3 to the heat exchanger core 3e, to the return water passage 3f, to the water outlet 3.
g, flows into the exhaust manifold heat exchanger 2 via the connection part 4, and then flows from the exhaust manifold heat exchanger 2 through the water pipe 9a (FIG. 2) and the water pump 10 to the water inside the engine body 1. The water flows into the jacket, passes through the thermostat and the water pipe 9b, and then reaches the water outlet 9c.
次に上記実施例構成の作用を説明する。 Next, the operation of the configuration of the above embodiment will be explained.
冷却水は熱交換器3の水入口3dより流入し、
熱交換器3および排気マニホールド熱交換器2に
て排気と熱交換し、排気熱を回収するとともに、
エンジン本体1内のウオータジヤケツト内に流入
してエンジンを冷却し、高温となつて水が水出口
9cより流出する。この温水をエンジンとは別に
設けた放熱器に送り室内の暖房用の熱源として利
用し、あるいは図示していないが、エンジン本体
1の出力軸にて駆動されるヒートポンプ冷媒回路
における冷媒加圧用コンプレツサを駆動し、この
ヒートポンプ冷媒回路における室外側の熱交換器
の熱源として利用する。このように温水が熱源と
して利用され、冷却された水が再び熱交換器3の
水入口3dに流入するようになつている。 Cooling water flows in from the water inlet 3d of the heat exchanger 3,
The heat exchanger 3 and the exhaust manifold heat exchanger 2 exchange heat with the exhaust gas and recover the exhaust heat,
The water flows into the water jacket in the engine body 1 to cool the engine, reaches a high temperature, and then flows out from the water outlet 9c. This hot water is sent to a radiator installed separately from the engine and used as a heat source for indoor heating, or, although not shown, is used in a compressor for pressurizing refrigerant in a heat pump refrigerant circuit driven by the output shaft of the engine body 1. It is used as a heat source for the outdoor heat exchanger in this heat pump refrigerant circuit. In this way, the hot water is used as a heat source, and the cooled water flows into the water inlet 3d of the heat exchanger 3 again.
ここに熱交換器3において、高温の排ガスは排
気入口3aより流入し、排気通路3bを通過し、
熱交換器コア3eおよび戻り水通路3f内を流通
する水との熱交換がなされる。このとき排ガスが
熱交換器コア3e内を通過する冷却水により冷却
されることにより、多量の凝縮水が発生し易い
が、本発明では発生した凝縮水は凝縮水ドレン機
構7を通して逐次、確実に外部に排出される。し
たがつて熱交換器3内に酸性度の高い凝縮水が溜
まることはなく、熱交換器コア3e等が腐食を受
けることを回避できる。このため熱交換器コア3
e等が腐食を受けて穴が開き、冷却水の排気通路
3b中に漏出し、あるいは排ガスが水回路に流入
するといつたことは防止される。 Here, in the heat exchanger 3, high-temperature exhaust gas flows in from the exhaust inlet 3a, passes through the exhaust passage 3b,
Heat exchange is performed with water flowing through the heat exchanger core 3e and the return water passage 3f. At this time, a large amount of condensed water is likely to be generated as the exhaust gas is cooled by the cooling water passing through the heat exchanger core 3e, but in the present invention, the generated condensed water is sequentially and reliably passed through the condensed water drain mechanism 7. It is discharged to the outside. Therefore, highly acidic condensed water does not accumulate in the heat exchanger 3, and corrosion of the heat exchanger core 3e and the like can be avoided. For this reason, heat exchanger core 3
This prevents the leakage of cooling water into the exhaust passage 3b or the inflow of exhaust gas into the water circuit due to corrosion caused by holes in the cooling water.
これに加えて本実施例では熱交換器3と排気マ
ニホールド熱交換器2との接続部4を熱交換器3
の上方に位置させるとともに、熱交換器3を排気
下流側すなわち排気出口3c側を下方に傾斜させ
て設けているので、冷却水が排気マニホールド熱
交換器2側に流入し、エンジンの燃焼室内に逆流
するようなことが防止できる構成とされている。 In addition, in this embodiment, the connecting portion 4 between the heat exchanger 3 and the exhaust manifold heat exchanger 2 is connected to the heat exchanger 3.
In addition to being located above, the heat exchanger 3 is provided with the exhaust downstream side, that is, the exhaust outlet 3c side, inclined downward, so that cooling water flows into the exhaust manifold heat exchanger 2 side and enters the combustion chamber of the engine. It is designed to prevent backflow.
また、本発明では排気系が熱交換器3の排気出
口3cより下方に延びる排気管6aを通り、か
つ、反転して上方へ延びる排気管路6bを通つて
サイレンサ8に入るように配設されているので、
熱交換器3で発生した凝縮水は最下部の凝縮水ド
レン機構7にて排出され、したがつて凝縮水がサ
イレンサ8へ流入することはなく、また、同様に
サイレンサ8で発生した凝縮水も凝縮水ドレン機
構7にて排出され、熱交換器3側へ逆流入するこ
とは防止される。したがつて排気系の各部品の凝
縮水の溜まりによる腐食発生を防止することがで
きる。 Further, in the present invention, the exhaust system is arranged so as to pass through the exhaust pipe 6a extending downward from the exhaust outlet 3c of the heat exchanger 3, and enter the silencer 8 through the exhaust pipe line 6b which inverted and extends upward. Because
The condensed water generated in the heat exchanger 3 is discharged by the condensed water drain mechanism 7 at the bottom, so that the condensed water does not flow into the silencer 8, and the condensed water generated in the silencer 8 is also discharged. The condensed water is discharged by the drain mechanism 7, and is prevented from flowing back into the heat exchanger 3 side. Therefore, corrosion caused by accumulation of condensed water in each part of the exhaust system can be prevented.
なお、上記実施例では熱交換器3が排気と冷却
水との三層構造のものを示したが、単に排ガスと
冷却水とが対向流となる二層のものであつてもよ
い。 In the above embodiment, the heat exchanger 3 has a three-layer structure of exhaust gas and cooling water, but it may also have a two-layer structure in which exhaust gas and cooling water flow in opposite directions.
(発明の効果)
以上のように本発明によれば、エンジンの排気
通路に排気と水との熱交換を行なう熱交換器を設
け、この熱交換器の下流側排気通路を下方に延ば
し、かつ反転して上方へ延長し、その先端にサイ
レンサを設け、かつ熱交換器とサイレンサ間の排
気通路最下部に凝縮水ドレン機構を設けたことに
より、熱交換器やサイレンサに発生した凝縮水を
確実に外部へ排出することができ、これら排気系
部品の凝縮水による腐食発生を効果的に防止する
ことができる。(Effects of the Invention) As described above, according to the present invention, a heat exchanger for exchanging heat between the exhaust gas and water is provided in the exhaust passage of the engine, and the exhaust passage on the downstream side of the heat exchanger is extended downward, and By inverting and extending upward, installing a silencer at the tip, and installing a condensed water drain mechanism at the bottom of the exhaust passage between the heat exchanger and the silencer, the condensed water generated in the heat exchanger and silencer can be reliably drained. Therefore, corrosion of these exhaust system parts due to condensed water can be effectively prevented.
第1図は本発明の排気系構造を実施したエンジ
ンの後面図、第2図は同エンジンの左側面図、第
3図は右側面図、第4図は凝縮水ドレン機構の一
実施例構成を示す断面図、第5図は同上面図、第
6図は同排気系構造における熱交換器の上面図、
第7図は第6図−線断面図、第8図は第6図
の−線断面図である。
1……エンジン本体、2……排気マニホールド
熱交換器、3……熱交換器、3c……排気出口、
6a……排気管、6b……排気管路、7……凝縮
水ドレン機構。
Fig. 1 is a rear view of an engine implementing the exhaust system structure of the present invention, Fig. 2 is a left side view of the same engine, Fig. 3 is a right side view, and Fig. 4 is an example configuration of a condensed water drain mechanism. 5 is a top view of the same, and FIG. 6 is a top view of the heat exchanger in the same exhaust system structure.
7 is a sectional view taken along the line in FIG. 6, and FIG. 8 is a sectional view taken along the line ``--'' in FIG. 1...Engine body, 2...Exhaust manifold heat exchanger, 3...Heat exchanger, 3c...Exhaust outlet,
6a...exhaust pipe, 6b...exhaust pipe line, 7...condensed water drain mechanism.
Claims (1)
ジンの排気系構造において、エンジンの排気通路
に排気と水との熱交換を行なう熱交換器を設け、
この熱交換器の下流側の排気通路を下方に延ば
し、かつ反転して上方へ延長し、その先端にサイ
レンサを接続し、さらに上記熱交換器とサイレン
サ間の排気通路最下部に凝縮水ドレン機構を配設
したことを特徴とするエンジンの排気系構造。1. In an engine exhaust system structure equipped with a heat exchanger for recovering exhaust heat, a heat exchanger for exchanging heat between the exhaust gas and water is provided in the exhaust passage of the engine,
The exhaust passage on the downstream side of this heat exchanger is extended downward, then reversed and extended upward, and a silencer is connected to the tip thereof, and a condensed water drain mechanism is installed at the bottom of the exhaust passage between the heat exchanger and the silencer. An engine exhaust system structure characterized by having:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60225592A JPS6285111A (en) | 1985-10-09 | 1985-10-09 | Exhaust system structure for engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60225592A JPS6285111A (en) | 1985-10-09 | 1985-10-09 | Exhaust system structure for engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6285111A JPS6285111A (en) | 1987-04-18 |
JPH0573894B2 true JPH0573894B2 (en) | 1993-10-15 |
Family
ID=16831733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60225592A Granted JPS6285111A (en) | 1985-10-09 | 1985-10-09 | Exhaust system structure for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6285111A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2672618B2 (en) * | 1989-01-09 | 1997-11-05 | 株式会社リコー | Optical information recording / reproducing device |
JPH0294349U (en) * | 1989-01-11 | 1990-07-26 | ||
JP3348984B2 (en) * | 1994-06-30 | 2002-11-20 | ヤマハ発動機株式会社 | Engine driven air conditioner |
DE10153383A1 (en) * | 2001-10-30 | 2003-05-22 | Visteon Global Tech Inc | Exhaust heat recovery device |
JP4610470B2 (en) * | 2005-11-10 | 2011-01-12 | ヤンマー株式会社 | Engine exhaust heat recovery device |
JP4610471B2 (en) * | 2005-11-10 | 2011-01-12 | ヤンマー株式会社 | Engine exhaust heat recovery device |
-
1985
- 1985-10-09 JP JP60225592A patent/JPS6285111A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6285111A (en) | 1987-04-18 |
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