JPS60203520A - Exhaust heat recovery device - Google Patents

Exhaust heat recovery device

Info

Publication number
JPS60203520A
JPS60203520A JP6019384A JP6019384A JPS60203520A JP S60203520 A JPS60203520 A JP S60203520A JP 6019384 A JP6019384 A JP 6019384A JP 6019384 A JP6019384 A JP 6019384A JP S60203520 A JPS60203520 A JP S60203520A
Authority
JP
Japan
Prior art keywords
heat
pipe
exhaust
exhaust gas
engine
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
JP6019384A
Other languages
Japanese (ja)
Inventor
Shigeru Akaike
赤池 茂
Masashi Takagi
正支 高木
Hiroaki Arai
宏昭 荒井
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.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP6019384A priority Critical patent/JPS60203520A/en
Publication of JPS60203520A publication Critical patent/JPS60203520A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/02Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/025Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from both the cooling liquid and the exhaust gases of the propulsion plant

Abstract

PURPOSE:To aim at an effective temperature rise in engine cooling water, by making up an engine pipe into a double pipe, while installing an exhaust heat recovery device, which consists of an exothermic agent generating heat with moisture contained in exhaust gas and a heat transfer member, in an outer pipe, and constituting it so as to make the exhaust gas selectable to both inner and outer pipes in a selective manner. CONSTITUTION:When cooling water temperature is low at the wintertime, a select valve 14 and a cutoff valve 16 both are moved to the left, cutting off an inside exhaust pipe 11', and the exhaust gas run past an exothermic agent 15 is discharged to the atmosphere via a bypass exhaust pipe 11''. With this operation, heat to be generated by potential heat of the exhaust gas and moisture contained in the exhaust gas plus reaction if the exothermic agent 15 is transferred to a heat insulating tank via a heat transfer member 12 whereby temperature of engine cooling water inside the heat insulating tank is made to go up. With this constitution, the engine cooling water at the wintertime is made to go up so speedily, thus a heating effect is well improvable.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は自動車用ヒータに用いられるエンジンの冷却水
の水温を上昇させるためにエンジン排気管に設りられた
排気熱回収装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an exhaust heat recovery device installed in an engine exhaust pipe to increase the temperature of engine cooling water used in an automobile heater.

「4に一卑 t6 肱讐 1 従来から用いられている自動車用ヒータはエンジンから
のエンジン冷却水をヒータの熱交換器に導き、そこで空
気を熱交換によって加熱し暖房用空気として用いるよう
にしている。従って、エンジン始動後はしばらくの間エ
ンジンの冷却水の温度は上がらず暖房効果が期待できず
、特に冬期間は暖房能力が非常に低いという不都合があ
る。にで、例えば実開昭55−179916号公報に記
載のようなエンジンからの排気ガスの熱を蓄熱器に蓄熱
してエンジン始動−直後はこの蓄熱器を利用して熱交換
器への温水を通すことにより暖房効果を上げるような自
動市川ヒータが提案されている。しかしながら、このよ
うな排気熱を蓄熱器を介して回収することは、エンジン
始動時に即効的な暖房を得るには蓄熱状態を経るために
十分なものではなかった。また、単に排気ガスとエンジ
ン冷却水等の温水を熱交換させて排気熱回収を行い、エ
ンジン始動時に暖房効果を上げようどすることも提案さ
れたが、即効的な暖房のためには十分な温度ト脣を揚る
ことBできなかったー [発明の目的] 本発明は上記点に鑑みてなされたもので、エンジン排気
I気管において排気ガスからの排熱回収と同Ik7に、
JJI気ガス中の水分により化学的に発熱する発熱剤か
らの熱を回収して、エンジン始動時のエンジン冷却水温
度を上昇させ、自動市川ヒータの冬期間のエンジン始動
時における即効的な暖房が得られるようにした排気熱回
収装置を提供すること4目的とり”るものである。
1. Conventionally used car heaters lead engine cooling water from the engine to the heater's heat exchanger, where the air is heated by heat exchange and used as heating air. Therefore, after the engine is started, the temperature of the engine cooling water does not rise for a while, and no heating effect can be expected, and especially during the winter, the heating capacity is very low. - As described in Publication No. 179916, the heat of the exhaust gas from the engine is stored in a heat storage device to start the engine. - Immediately after starting the engine, the heat storage device is used to increase the heating effect by passing hot water to the heat exchanger. An automatic Ichikawa heater has been proposed.However, recovering such exhaust heat through a heat storage device is not sufficient to provide immediate heating when the engine starts, as it passes through a heat storage state. It has also been proposed to recover exhaust heat by simply exchanging heat between exhaust gas and hot water such as engine cooling water to increase the heating effect when the engine starts, but this is not possible for immediate heating. [Objective of the Invention] The present invention was made in view of the above points, and it recovers exhaust heat from the exhaust gas in the engine exhaust I trachea and
The heat from the exothermic agent chemically generated by the moisture in the JJI air gas is recovered to raise the engine cooling water temperature when the engine is started, and the automatic Ichikawa heater provides immediate heating when the engine is started during the winter. The present invention has four objectives: to provide an exhaust heat recovery device that can obtain the following effects.

I−ブを明の構成] 、F記目的を達成するために本発明の排熱回収装置は、
エンジン排気管を内側排気管と外側のバイパス排気管と
からなる二重管とし、該二重管には排気ガスを必要に応
じてバイパス排気管に流通さける切換弁を設()るど共
に、前記バイパス排気管には排気熱を1、回収しエンジ
ン冷却水の温度を上昇さUる/jめの伝熱部材と、排気
ガス中の水分により発熱し前記伝熱部材に作用する発熱
剤とを設け、該発熱剤は排気ガスが前記内側排気管を流
通中に92雰されるようにしたことを特徴とする。
The exhaust heat recovery device of the present invention has the following features:
The engine exhaust pipe is a double pipe consisting of an inner exhaust pipe and an outer bypass exhaust pipe, and the double pipe is equipped with a switching valve that allows exhaust gas to flow through the bypass exhaust pipe as necessary. The bypass exhaust pipe includes a heat transfer member that recovers exhaust heat and raises the temperature of engine cooling water, and a heat generating agent that generates heat due to moisture in the exhaust gas and acts on the heat transfer member. The exothermic agent is characterized in that the exothermic agent is such that the exhaust gas is exposed to 92 atmospheres while flowing through the inner exhaust pipe.

[実施例] 以下本発明を添付図面に示された一実施例に基づいて詳
細に説明する。
[Example] The present invention will be described in detail below based on an example shown in the accompanying drawings.

図において、1は断熱材で被覆された保温タンクで、2
はエンジン排気管10に設(プられた触媒収納部、3は
前記排気管10の触媒2より後方に設けられた排熱回収
装置で、保温タンク1とはヒートバイブ等からなる伝熱
部月12により接続されている。4は自動車用ヒータと
して暖房用空気を得るために車室28の前方に設けられ
たヒータコアで、ファン5によって送られた空気と熱交
換し暖房空気を車室28に供給する。6はエンジン27
からのエンジン冷却水をヒータコア4へ供給する管路、
7はエンジン冷却水をエンジン27へ戻す戻り管路であ
り、エンジン冷却水供給管路6は分岐されて、ヒータコ
ア4の流入管路9および流出管路8に接続され、戻り管
路7はヒータコア4の前記流出管路8に接続されている
。前記流出管路8には保温タンク1が設けられ、エンジ
ン27側にウォータポンプ8′、ヒータコア4側に通水
弁8″が設置Jられ、供給管路6と流入管路9にも通水
弁6’ 、9’ がそれぞれ設けられている。
In the figure, 1 is a heat retention tank covered with a heat insulating material, 2
is a catalyst storage section installed in the engine exhaust pipe 10, 3 is an exhaust heat recovery device installed behind the catalyst 2 in the exhaust pipe 10, and the heat insulating tank 1 is a heat transfer unit such as a heat vibrator. 12. Numeral 4 is a heater core installed in front of the vehicle interior 28 to obtain heating air as an automobile heater, and exchanges heat with the air sent by the fan 5 to supply heating air to the vehicle interior 28. Supply.6 is engine 27
A pipe line for supplying engine cooling water from the heater core 4 to the heater core 4;
7 is a return pipe that returns engine cooling water to the engine 27; the engine cooling water supply pipe 6 is branched and connected to the inlet pipe 9 and the outlet pipe 8 of the heater core 4; the return pipe 7 is connected to the heater core 4; It is connected to the outflow pipe 8 of No. 4. The outflow pipe 8 is provided with a heat insulating tank 1, a water pump 8' is installed on the engine 27 side, a water flow valve 8'' is installed on the heater core 4 side, and water is also passed through the supply pipe 6 and the inflow pipe 9. Valves 6' and 9' are provided respectively.

11はエンジン排気管10において触媒収納部2の後方
に設けられた二重管であり、内側は排気管10どそのま
ま連通ずる内側排気管11′であり、外側はバイパス排
気管11″となっていて、排熱回収菰ir1°3とは後
述づるJ、うに第2図に示り一関連構成になっている。
Reference numeral 11 denotes a double pipe installed behind the catalyst storage section 2 in the engine exhaust pipe 10. The inner side is an inner exhaust pipe 11' that communicates directly with the exhaust pipe 10, and the outer side is a bypass exhaust pipe 11''. The exhaust heat recovery unit IR1°3 has a related structure as shown in FIG. 2, which will be described later.

次に171熱回収装置3について詳述J−ると、第2図
に示す如く、ケーシング3′には二重管11が装着され
、内側排気管11′とケーシング3′との間には仕切り
20により形成される空間に、シリカゲル等の排ガス中
の水分により化学的に発熱する発熱剤15が収容される
と共に、内側排気管11′を取り巻き、発熱剤15との
熱交換が可能なように伝熱部材12が配置されている。
Next, the 171 heat recovery device 3 will be described in detail. As shown in FIG. A heat generating agent 15 that chemically generates heat due to moisture in exhaust gas such as silica gel is housed in the space formed by the heat generating agent 20, and it surrounds the inner exhaust pipe 11' so that heat exchange with the heat generating agent 15 is possible. A heat transfer member 12 is arranged.

発熱剤15へ排気ガスを導入り”るためには、排気管1
0内を摺動づ−るリノ換弁14が設けられ、該切換弁1
4は」ニンジン冷IJI水温センサ2Bによって作動1
 」1、−y 、st、+−1chP−% +t+ t
 M リ I−1−い nn、;’+1 −’r 4/
l ’FIRfk時に排気ガスを導入し、エンジン排気
の流通の抵抗にならないような多孔の円錐状のジョイン
1−21により連結された排気ガス遮断用の弁16と連
動づるようになっている。これらの切換弁14と遮断弁
16は、電磁マグネツ1−13により吸引されていない
時にばばね17により光熱剤15への流通を遮断し、1
)1気管10が1ノ1気カスをそのまま内側排気管11
′を通して人気へ放出J°るように開放される構成とな
っている。また、発熱剤15の後方にはバイパス排気管
11′への開閉を行うリング形状をした弁19が形状記
憶合金より成るスプリング18により支持されて段()
られ、排気ガスが流通している状態では形状記憶合金よ
り成るスプリング18が延びて弁19を開き、エンジン
27が作動中は延びたままで、エンジン27が停止して
低温になると収縮して弁19を閉じ、外気からの湿気の
侵入を防ぐ構造を有している。
In order to introduce exhaust gas into the exothermic agent 15, the exhaust pipe 1 is
A reno switching valve 14 is provided which slides within the switching valve 1.
4” Carrot Cold IJI Water Temperature Sensor 2B Operated by 1
"1, -y, st, +-1chP-% +t+t
M ri I-1-i nn, ;'+1 -'r 4/
It is designed to introduce exhaust gas at the time of l' FIRfk and to be linked with an exhaust gas cutoff valve 16 connected by a conical joint 1-21 with porous holes so as not to create resistance to the flow of engine exhaust gas. These switching valve 14 and cutoff valve 16 block the flow to the photothermal agent 15 by the spring 17 when it is not attracted by the electromagnetic magnet 1-13.
) 1 trachea 10 leaves 1 no 1 air scum as it is inside exhaust pipe 11
It is structured so that it can be released to popularity through '. Further, behind the exothermic agent 15, a ring-shaped valve 19 for opening and closing the bypass exhaust pipe 11' is supported by a spring 18 made of a shape memory alloy.
When the exhaust gas is flowing, the spring 18 made of a shape memory alloy extends to open the valve 19, remains extended while the engine 27 is operating, and contracts when the engine 27 is stopped and cools down, opening the valve 19. It has a structure that closes and prevents moisture from entering from the outside air.

上記保温タンク1は、第3図に示すように、断熱材1′
で被覆され、排気熱回収装置3からのヒ−1へパイプで
ある伝熱部材12が底部から内部へ挿入され、気密性・
水蜜性を保つためのOリング23を介してユニオンねじ
24で取り付けられている。伝熱部材12の保温タンク
1内側には着脱自イ1なフィン22が取りイ9けられ、
内部の温水の加熱を効率よく行うと共に、保温タンク1
への伝熱部材12の取りイ1けを容易にしている。
As shown in FIG.
The heat transfer member 12, which is a pipe from the exhaust heat recovery device 3 to the heat 1, is inserted into the interior from the bottom to ensure airtightness.
It is attached with a union screw 24 via an O-ring 23 to maintain water tightness. A removable fin 22 is provided on the inside of the heat insulating tank 1 of the heat transfer member 12.
In addition to efficiently heating the internal hot water, the heat retention tank 1
This makes it easy to remove the heat transfer member 12 from the base.

以」二のような排熱回収装置3が自動市川ヒータにj1
&用された場合の作用について説明する。
The exhaust heat recovery device 3 as shown in Fig. 2 is connected to the automatic Ichikawa heater.
& Explain the effect when used.

Stず、通常のヒータモードの場合には、第1図にお(
)る点線矢印の如くエンジン冷却水が流れる。
In the case of normal heater mode, as shown in Fig. 1 (
) Engine cooling water flows as shown by the dotted arrow.

即ら、−1−ンジン27からのエンジン冷却水は、供給
管路6の通水弁6′、およびヒータコア4の流入路9に
Jjりる通水弁9′が開かれ、流出管路8のつA−タボ
ンブ8′が停止され、通水弁8″が開じられ−C1供給
管路6、流入管路9、ヒータコア4を経て、戻り管路7
によってエンジン27に戻る循環を行い、ヒータコア4
においてノアン5からの空気と熱交換を行い、暖房空気
を単室に供給りる。その際、排熱回収装置3においては
、エンジン冷却水温が高くなっていて、電磁マグネット
13が作動していないので、ばね17にJこり切換弁1
4および遮断弁16は右方向へ移動しており、バイパス
排気管11″への排気ガスの流通を切換弁14が遮断し
、遮断弁16は内側排気管11′を開放して排気ガスが
大気へ流出する。
That is, the engine cooling water from the engine 27 is passed through the water passage valve 6' of the supply pipe 6 and the water passage valve 9' flowing into the inflow pipe 9 of the heater core 4, and then flows through the outflow pipe 8. The A-ta bomb 8' is stopped, the water flow valve 8'' is opened, and the water flows through the C1 supply pipe 6, inflow pipe 9, heater core 4, and return pipe 7.
The heater core 4 is circulated back to the engine 27 by
Heat exchange is performed with the air from Noan 5 in the room, and heating air is supplied to the single room. At this time, in the exhaust heat recovery device 3, the engine cooling water temperature is high and the electromagnet 13 is not operating, so the spring 17 is connected to the J stiffness switching valve 1.
4 and the cutoff valve 16 are moving to the right, the switching valve 14 cuts off the flow of exhaust gas to the bypass exhaust pipe 11'', and the cutoff valve 16 opens the inner exhaust pipe 11' so that the exhaust gas is released into the atmosphere. leaks to.

次に、冬期においてエンジン始動時に即効的な暖房を得
たい即効ヒータモードにJjいては、′@!1図におい
てエンジン冷却水の供給管路6の通水弁6′を閉じ、流
入管路9における通水弁9′J5よび流出管路8におけ
る通水弁8″を聞いて、保温タンク1内の温水を実線矢
印に示ツごどくヒータコア4を経て循環さぼるようにつ
A−タボンブ8′が作動する。その際、排熱回収装置3
にJjいては、電磁マグネット13がエンジン冷却水温
瓜が低いために作動し、切換弁14およびiU[I7i
弁16をばね17に抗して左方に移動させ、遮断弁16
により内側排気管11′を遮断するど共に、発熱剤15
を通った排気ガスをバイパス排気管11′を経て大気へ
放出するように切換弁14の開口14aをバイパス導入
部27へ合致させる。
Next, if you want to use the instant heater mode to get instant heating when starting the engine in the winter, please use '@! In Fig. 1, the water passage valve 6' of the engine cooling water supply pipe 6 is closed, and the water passage valve 9'J5 in the inflow pipe 9 and the water passage valve 8'' in the outflow pipe 8 are turned on. The A-tub bomb 8' operates to circulate hot water through the heater core 4 as shown by the solid arrow.At this time, the exhaust heat recovery device 3
In Jj, the electromagnetic magnet 13 is activated due to the low engine coolant temperature, and the switching valve 14 and iU[I7i
Move the valve 16 to the left against the spring 17, and close the shutoff valve 16.
In addition to blocking the inner exhaust pipe 11', the exothermic agent 15
The opening 14a of the switching valve 14 is aligned with the bypass introduction part 27 so that the exhaust gas passing therethrough is discharged to the atmosphere through the bypass exhaust pipe 11'.

(!Yつ−C1排気ガスによる排気熱は伝熱部材12で
あるヒートパイプが保温タンク1に伝達することにJ、
り回収し、また排気ガス中の水分によって発熱剤15が
化学的に発熱し、その排熱は同様に伝熱;;It 14
12にJ、って保温タンク1内のエンジン冷7J+水を
フィン22からの放熱によって加熱し、エンジン冷〕、
II水温度を上昇ざゼることができる。これによって得
られた温水は、ウォータポンプ8′によって実線矢印の
ようにヒータエア4を通って循環され、1ンシン始動時
にJjいてもヒータエア4からの速やかな暖気が得られ
、車室28内に送られる。そして、エンジン冷f、II
水温度が十分に上背(Jるど、電)6マグネツト13は
非作動状態になり、1,7J換弁14および遮断弁16
はばね17により右/jに移動し、切換弁14が閉じ、
遮断弁16が開いて通常のヒータモードになる。その時
、発f:4H剤中に吸収された水分は、ジヨイント21
の内It!II ’、!:流れるjJl気によって乾燥
される。そして、停申し−(」ンジン27が長詩開作動
しないと六L1−は低温になると形状記憶合金より成る
スプリング18が収縮してリング形状の弁1日がバイパ
ス排気管11″を閉じ、外気中の湿気の侵入を防ぐ。
(!Ytsu-C1 The exhaust heat from the exhaust gas is transferred to the heat insulating tank 1 by the heat pipe, which is the heat transfer member 12.J,
The exothermic agent 15 chemically generates heat due to the moisture in the exhaust gas, and the waste heat is similarly transferred;;It 14
12 J, the engine cooling 7J + water in the heat insulation tank 1 is heated by heat radiation from the fins 22, and the engine is cooled.
II The water temperature can be increased. The hot water thus obtained is circulated by the water pump 8' through the heater air 4 as shown by the solid line arrow, and even if the engine is started at the start of the first engine, warm air can be quickly obtained from the heater air 4 and sent into the passenger compartment 28. It will be done. And engine cold f, II
When the water temperature is sufficient, the upper back (J Rudo, electric) 6 magnet 13 becomes inactive, and the 1,7 J switching valve 14 and the shutoff valve 16
is moved to the right/j by the spring 17, the switching valve 14 is closed,
Shutoff valve 16 opens to enter normal heater mode. At that time, the water absorbed into the f:4H agent is absorbed into the joint 21.
Inside It! II',! : Dry by flowing air. When the engine 27 does not open, the spring 18 made of shape memory alloy contracts and the ring-shaped valve 1 closes the bypass exhaust pipe 11'', allowing the outside air to flow out. Prevents moisture from entering inside.

なお、上記実施例における排熱回収装置3においては、
内側171気管11’ どバイパス11気管11″との
切換を行う切換弁14J3よび遮断弁16を移動させる
電磁マグネット13を触媒の後方の排気管10の内部に
設【プているか、第41:Klに示す如く電磁マグネツ
1〜13を排気色′10および排熱回収装置3から切り
離し、熱の影響を少ない場所に設置し、二重管から4に
る1)1気管11の全長を適宜短くし、弁16を作動さ
せるアーム25を設りて、排気管10に摺動可能に説1
.Jられ/、:支持体26と連結し、ばね29にJ、′
つU l/J換ブt14および遮断弁I6を開く方向に
イ」勢して、雷I6マグネツト13が、アーム25をば
ね29に抗して吸引するように構成してもよい。そして
、切換弁14および遮断弁16を連結している円錐ジョ
イン1〜21は、多孔の部材を用いたが、数本の金属棒
を用いて連結してもよい。
In addition, in the exhaust heat recovery device 3 in the above embodiment,
An electromagnetic magnet 13 for moving the switching valve 14J3 and the shutoff valve 16 for switching between the inner side 171 trachea 11' and the bypass 11 trachea 11'' is installed inside the exhaust pipe 10 behind the catalyst. As shown in , the electromagnetic magnets 1 to 13 are separated from the exhaust color '10 and the exhaust heat recovery device 3, installed in a place where there is little influence of heat, and the overall length of the trachea 11 from the double pipe to 4 is shortened appropriately. , an arm 25 for actuating the valve 16 is provided so as to be slidable on the exhaust pipe 10.
.. J is connected to the support 26 and the spring 29 is connected to the
It may be configured such that the lightning I6 magnet 13 attracts the arm 25 against the spring 29 by pushing the U1/J switching button t14 and the shutoff valve I6 in the direction of opening. Although the conical joins 1 to 21 connecting the switching valve 14 and the cutoff valve 16 are made of porous members, they may be connected using several metal rods.

また、保温タンク1は伝熱部材12へのフィン22の取
り(JGJを容易にするために分割形にしてもよい。
Further, the heat insulating tank 1 may be of a split type in order to facilitate attachment of the fins 22 to the heat transfer member 12 (JGJ).

[光間の効果] 以り述べたように、本発明による排熱回収装置は]ニン
ジンJJI気管を内側排気管と外側のバイパス刊気管と
からなる二重管どして、前記バイパス排気似・に伝熱部
材およびエンジン排気ガス中の水分にj、つ(化学的に
ブを熱りる発熱剤を設り、冬期のエンジン始動時におけ
るエンジン冷IJl水温が低くて速やかに暖房空気が得
られないときには、切換tf’の作動によって排気ガス
を伝熱部材および発熱剤の部分に流通させることができ
るので、エンジンの排気熱が効率よく回収されて、エン
ジン冷却水の4蟲度を上昇させることができ即効的な暖
房効果がiJられる。また、排気熱回収装置は排気管の
触媒収納部にり後方に設けられているので、排気ガスに
よる影響が少なく、発熱剤は作用後に通常の11気ガス
により乾燥されるので、次回の作動時に即座に作用する
ことができるという優れた効果がある。
[Effect between lights] As described above, the exhaust heat recovery device according to the present invention uses the carrot JJI trachea as a double pipe consisting of an inner exhaust pipe and an outer bypass trachea to produce a similar effect to the above-mentioned bypass exhaust. A heating agent is installed to chemically heat the moisture in the heat transfer member and the engine exhaust gas, so that when the engine is started in winter, the temperature of the engine cooling water is low and heating air can be quickly obtained. When the exhaust gas is not available, the exhaust gas can be circulated to the heat transfer member and the exothermic part by operating the switching tf', so that the exhaust heat of the engine is efficiently recovered and the temperature of the engine cooling water is increased. In addition, since the exhaust heat recovery device is installed at the rear of the catalyst storage part of the exhaust pipe, there is little influence from exhaust gas, and the exothermic agent is heated in the normal 11 atmospheres after its action. Since it is dried by gas, it has the excellent effect of being able to work immediately the next time it is used.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による排気熱回収装置を用いた自動車用
ヒータの全体説明図、第2図は本発明の一実施例である
排気熱回収装置の断面図、第3図第1図に示された保温
タンクの部分断面図、および第4図は151気熱回収装
置の仙の実施例の断面図である。 1・・・保温タンク、2・・・触媒収納部、3・・・排
気熱回収装置、10・・・エンジン排気管、11・・・
二重管、11′・・・内側排気管、11″・・・バイパ
ス排気管、12・・・伝熱部材、14・・・切換弁、1
5・・・発熱剤。 代理人 浅 利 皓 b −
FIG. 1 is an overall explanatory diagram of an automobile heater using an exhaust heat recovery device according to the present invention, FIG. 2 is a sectional view of an exhaust heat recovery device that is an embodiment of the present invention, and FIG. FIG. 4 is a partial cross-sectional view of the thermal insulation tank shown in FIG. DESCRIPTION OF SYMBOLS 1... Heat retention tank, 2... Catalyst storage part, 3... Exhaust heat recovery device, 10... Engine exhaust pipe, 11...
Double pipe, 11'...Inner exhaust pipe, 11''...Bypass exhaust pipe, 12...Heat transfer member, 14...Switching valve, 1
5... Exothermic agent. Agent Hiroshi Asarib −

Claims (1)

【特許請求の範囲】 1ンジンの排気管を、内側排気管と外側のバイパス排気
管どからなる二重管とし、該二重管にはJJI気ガスを
必要に応じてバイパス排気管に流通させる切換弁を設け
ると共に、前記バイパス排気管にはυ1気熱を回収して
エンジン冷却水の水温を上界さU゛るための伝熱部材と
、排気ガス中の水分により発熱し前記伝熱部材に作用す
る発熱剤とを設【ノ、該発熱剤は排気ガスが前記内側排
気管を流通中に乾燥されるようにしたことを特徴とする
排気熱回収装置。
[Claims] The exhaust pipe of one engine is a double pipe consisting of an inner exhaust pipe and an outer bypass exhaust pipe, and JJI gas is passed through the double pipe as necessary to the bypass exhaust pipe. In addition to providing a switching valve, the bypass exhaust pipe is provided with a heat transfer member for collecting air heat to raise the temperature of the engine cooling water, and a heat transfer member that generates heat due to moisture in the exhaust gas. An exhaust heat recovery device comprising: a heat generating agent that acts on the exhaust gas, the heat generating agent being dried while the exhaust gas is flowing through the inner exhaust pipe.
JP6019384A 1984-03-28 1984-03-28 Exhaust heat recovery device Pending JPS60203520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6019384A JPS60203520A (en) 1984-03-28 1984-03-28 Exhaust heat recovery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6019384A JPS60203520A (en) 1984-03-28 1984-03-28 Exhaust heat recovery device

Publications (1)

Publication Number Publication Date
JPS60203520A true JPS60203520A (en) 1985-10-15

Family

ID=13135072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6019384A Pending JPS60203520A (en) 1984-03-28 1984-03-28 Exhaust heat recovery device

Country Status (1)

Country Link
JP (1) JPS60203520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7419466B2 (en) 2000-01-14 2008-09-02 Acorn Cardiovascular, Inc. Delivery of cardiac constraint jacket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7419466B2 (en) 2000-01-14 2008-09-02 Acorn Cardiovascular, Inc. Delivery of cardiac constraint jacket

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