JPH0559946A - Engine cooling device of heat recovery type engine - Google Patents
Engine cooling device of heat recovery type engineInfo
- Publication number
- JPH0559946A JPH0559946A JP24480891A JP24480891A JPH0559946A JP H0559946 A JPH0559946 A JP H0559946A JP 24480891 A JP24480891 A JP 24480891A JP 24480891 A JP24480891 A JP 24480891A JP H0559946 A JPH0559946 A JP H0559946A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- cooling water
- engine
- radiator
- cooling
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヒートポンプ装置等の
排熱利用装置に使用する水冷エンジンの冷却装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a water-cooled engine used in an exhaust heat utilization device such as a heat pump device.
【０００２】[0002]
【従来技術】従来この種装置に使用する水冷エンジンの
冷却装置は、水冷エンジンのウオータジャケットから導
出した高温冷却水路を排ガス熱交換器を介して放熱器に
接続し、放熱器からの冷却水戻し路を冷却水圧送ポンプ
を介して水冷エンジンのウオータジャケットに接続し、
排ガス熱交換器と放熱器との間の高温冷却水路と冷却水
圧送ポンプより上流側の冷却水戻し路とを高温冷却水路
に配置したサーモスタット弁等の感温式流路切換弁を介
して接続し、排ガス熱交換器をへて流れてきた冷却水の
水温が感温式流路切換弁の作動設定温度よりも低い間は
冷却水を短絡路から水冷エンジンに戻し、排ガス熱交換
器から流れてきた冷却水の水温が感温式流路切換弁の作
動設定温度よりも高くなると、高温冷却水を放熱器に供
給するようになっていた。2. Description of the Related Art Conventionally, a cooling device for a water-cooled engine used in this type of device is constructed by connecting a high-temperature cooling water channel derived from a water jacket of the water-cooled engine to a radiator via an exhaust gas heat exchanger to return cooling water from the radiator. Connect the line to the water jacket of the water-cooled engine via the cooling water pressure pump,
The high temperature cooling water passage between the exhaust gas heat exchanger and the radiator and the cooling water return passage upstream of the cooling water pressure pump are connected via a temperature sensitive flow path switching valve such as a thermostat valve arranged in the high temperature cooling water passage. However, while the temperature of the cooling water flowing through the exhaust gas heat exchanger is lower than the operating temperature setting of the temperature-sensing flow path switching valve, the cooling water is returned from the short circuit to the water-cooled engine and flows from the exhaust gas heat exchanger. When the temperature of the cooling water that has been obtained becomes higher than the operation set temperature of the temperature-sensitive flow path switching valve, the high temperature cooling water is supplied to the radiator.
【０００３】[0003]
【発明が解決しようとする課題】ところが、従来のヒー
トポンプ装置での放熱器は、エンジン冷却水の保有熱を
放出する放熱器とエンジンの冷却水と冷楳との間で熱交
換する放熱器とで構成し、冷房使用時と暖房使用時とで
使用する放熱器を選択するように構成し、両放熱器に対
応させて配置した１つの送風ファンからの風を放熱器に
作用させてエンジン冷却水から熱を奪うように構成して
いるのであるが、この送風ファンは高温冷却水路に配置
した感温式流路切換弁の切換と同時に作動し始めること
から、エンジンに戻ってきた冷却水がその感温式流路切
換弁の切換前後において大きく変動することになるとい
う問題があった。本発明はこのような点に着目してなさ
れたもので、冷却水のエンジン入口水温の変動の小さい
熱回収式エンジンの冷却装置を提供することを目的とす
る。However, the radiator in the conventional heat pump device includes a radiator that releases the heat of the engine cooling water and a radiator that exchanges heat between the engine cooling water and the cooling water. It is configured to select the radiator to be used during cooling and heating, and the air from one blower fan corresponding to both radiators is applied to the radiator to cool the engine. Although it is configured to remove heat from water, this blower fan starts to operate simultaneously with the switching of the temperature-sensitive flow path switching valve arranged in the high temperature cooling water passage, so the cooling water returned to the engine There has been a problem that the temperature-sensitive flow path switching valve fluctuates greatly before and after switching. The present invention has been made in view of such a point, and an object of the present invention is to provide a cooling device for a heat recovery type engine in which fluctuations in the engine inlet water temperature of cooling water are small.
【０００４】[0004]
【課題を解決するための手段】上述の目的達成するため
に本発明は、エンジンの冷却水を排ガス熱交換器、放熱
器、冷却水圧送ポンプを介して循環させるようにし、放
熱器をバイパスさせる状態で短絡路を配置し、放熱器の
入口と短絡路との接続部に感温式流路切換弁を配置し、
放熱器と短絡路とを択一的に選択して冷却水を流すよう
に構成したエンジンの冷却装置において、放熱器に対応
させて電動式送風ファンを配置し、この電動式送風ファ
ンを放熱器に流入する冷却水温を検知して作動するよう
に構成し、この電動式送風ファンの作動開始温度を感温
式流路切換弁での切換設定温度よりも所定温度高く設定
したことを特徴としている。To achieve the above object, the present invention circulates engine cooling water through an exhaust gas heat exchanger, a radiator, and a cooling water pressure pump, and bypasses the radiator. Place the short circuit in the state, and arrange the temperature sensitive flow path switching valve at the connection between the radiator inlet and the short circuit,
In an engine cooling device configured to allow cooling water to flow by selectively selecting a radiator or a short-circuit path, an electric blower fan is arranged corresponding to the radiator, and this electric blower fan is used as a radiator. It is configured so that it operates by detecting the temperature of the cooling water flowing into it, and the operation start temperature of this electric blower fan is set to be a predetermined temperature higher than the switching set temperature in the temperature sensitive flow path switching valve. ..
【０００５】[0005]
【作用】本発明では、エンジンの冷却水を排ガス熱交換
器、放熱器、冷却水圧送ポンプを介して循環させるよう
にし、放熱器をバイパスさせる状態で短絡路を配置し、
放熱器の入口と短絡路との接続部に感温式流路切換弁を
配置し、放熱器と短絡路とを択一的に選択して冷却水を
流すように構成したエンジンの冷却装置において、放熱
器に対応させて電動式送風ファンを配置し、この電動式
送風ファンを放熱器に流入する冷却水温を検知して作動
するように構成し、この電動式送風ファンの作動開始温
度を感温式流路切換弁での切換設定温度よりも所定温度
高く設定しているので、排ガス熱交換器をへて流れてき
た冷却水温が所定温度に達して、その流通経路が短絡路
から放熱器に切り替わった当初、その冷却水温度は電動
式送風ファンの作動開始温度に達していないことから、
送風ファンは作動せず、冷却水は放熱器での自然放冷に
より熱を放出することになるから、エンジンに戻って来
る冷却水温度は急激に温度低下することがなくなる。そ
して、冷却水温が電動式送風ファンの作動開始温度に達
すると、送風ファンが作動して強制放冷状態になり、冷
却水から熱を奪うことになる。According to the present invention, the cooling water for the engine is circulated through the exhaust gas heat exchanger, the radiator, and the cooling water pressure pump, and the short circuit is arranged in a state where the radiator is bypassed.
In an engine cooling device, in which a temperature-sensitive flow path switching valve is arranged at a connection portion between an inlet of a radiator and a short-circuit path and cooling water is flown by selectively selecting the radiator and the short-circuit path. , The electric blower fan is arranged corresponding to the radiator, and this electric blower fan is configured to operate by detecting the temperature of the cooling water flowing into the radiator, and the operation start temperature of this electric blower fan can be detected. Since the temperature is set higher than the temperature set by the hot flow path switching valve, the temperature of the cooling water flowing through the exhaust gas heat exchanger reaches the predetermined temperature, and the flow path from the short circuit to the radiator. At the beginning, the temperature of the cooling water did not reach the operation start temperature of the electric blower fan.
Since the blower fan does not operate and the cooling water releases heat by natural cooling in the radiator, the temperature of the cooling water returning to the engine does not drop sharply. Then, when the cooling water temperature reaches the operation start temperature of the electric blower fan, the blower fan operates to enter the forced cooling state, and heat is taken from the cooling water.
【０００６】[0006]
【実施例】図面は本発明の実施例を示し、図１はエンジ
ンヒートポンプでのエンジン冷却水循環系を示す構成図
である。このエンジンヒートポンプは、冷暖房装置の熱
媒体を圧縮するコンプレッサー(１)と、このコンプレッ
サー(１)を駆動する水冷エンジン(２)とを有している。DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention, and FIG. 1 is a structural diagram showing an engine cooling water circulation system in an engine heat pump. This engine heat pump has a compressor (1) for compressing a heat medium of an air conditioner and a water cooling engine (2) for driving the compressor (1).
【０００７】水冷エンジン(２)の冷却系は、水冷エンジ
ン(２)のウオータジャケットから導出した高温冷却水路
(３)を排ガス熱交換器(４)を介して放熱器(５)に接続
し、放熱器(５)からの冷却水戻し路(６)を冷却水圧送ポ
ンプ(７)を介してエンジンのウオータジャケットに接続
することにより、冷却水を循環させるように構成し、高
温冷却水路(３)に冷却水温が所定温度(Ｔ0)になると流
路を切換える感温式流路切換弁(８)としてのサーモスタ
ット弁(９)を配置し、このサーモスタット弁(９)から導
出した短絡路(10)を冷却水圧送ポンプ(７)より上流側の
冷却水戻し路(６)に接続してある。The cooling system of the water-cooled engine (2) is a high-temperature cooling water channel derived from the water jacket of the water-cooled engine (2).
(3) is connected to the radiator (5) via the exhaust gas heat exchanger (4), and the cooling water return path (6) from the radiator (5) is connected to the engine via the cooling water pressure pump (7). A temperature-sensitive flow path switching valve (8) configured to circulate cooling water by connecting to a water jacket and switch the flow path when the cooling water temperature reaches a predetermined temperature (T 0 ) in the high temperature cooling water path (3). A thermostat valve (9) is arranged, and the short-circuit path (10) derived from the thermostat valve (9) is connected to the cooling water return path (6) upstream of the cooling water pressure pump (7).
【０００８】そして、放熱器(５)に対応させて電動式送
風ファン(11)を配置し、高温冷却水路(３)のサーモスタ
ット弁(９)よりも下流側で放熱器(５)よりも上流側に放
熱器(５)に流入する冷却水の水温を検知する温度検出具
(12)を配置し、放熱器(５)に流入する冷却水の水温
(Ｔ1)が設定温度以上になったことを温度検出具(12)が
検出することに基づき、電動式送風ファン(11)が作動す
るように構成してある。An electric blower fan (11) is arranged corresponding to the radiator (5), and is located downstream of the thermostat valve (9) in the high temperature cooling water passage (3) and upstream of the radiator (5). Temperature detector for detecting the temperature of the cooling water flowing into the radiator (5) on the side
(12) is placed, and the temperature of the cooling water flowing into the radiator (5)
The electric blower fan (11) is configured to operate based on the fact that the temperature detector (12) detects that (T 1 ) has exceeded the set temperature.
【０００９】この電動式送風ファン(11)の作動設定温度
(Ｔ1)はサーモスタット弁(９)の流路切換設定温度(Ｔ0)
より僅かに高い温度に設定してある。そして、本実施例
では、サーモスタット弁(９)の設定温度(Ｔ0)を７０℃
に設定し、電動式送風ファン(11)の作動設定温度(Ｔ1)
を７５℃に設定してある。Operation set temperature of this electric blower fan (11)
(T 1 ) is the flow path switching set temperature (T 0 ) of the thermostat valve (9)
The temperature is set slightly higher. In this embodiment, the set temperature (T 0 ) of the thermostat valve (9) is 70 ° C.
Set the operating temperature of the electric blower fan (11) (T 1 )
Is set to 75 ° C.
【００１０】図２は本発明の別実施例を示し、これは高
温冷却水路(３)と冷却水戻し路(６)での冷却水圧送ポン
プ(７)よりも上流側とを短絡路(10)で連通し、高温冷却
水路(３)の短絡路接続部よりも下流側に電磁開閉弁(13)
を配置するとともに、短絡路(９)にも電磁開閉弁(14)を
配置し、冷却水戻し路(６)のエンジン(２)への戻し口近
傍部にエンジン(２)のウオータジャケットに流入する冷
却水の水温を検出する温度検出具(15)を配置し、この温
度検出具(15)で検出した冷却水温に基づき両電磁開閉弁
(13)(14)を択一的に開閉制御するように構成することに
より、この両電磁開閉弁(13)(14)で感温式流路切換弁
(８)を構成してある。そして、エンジンに流入する冷却
水温が所定温度以下の場合には、短絡路(10)に介在して
いる電磁開閉弁(14)を開弁状態にするとともに、高温冷
却水路(３)に介在している電磁開閉弁(13)を閉弁状態に
し、エンジンに流入する冷却水温が所定温度以上の場合
には、短絡路(10)に介在している電磁開閉弁(14)を閉弁
状態にするとともに、高温冷却水路(３)に介在している
電磁開閉弁(13)を開弁状態にするように構成してある。FIG. 2 shows another embodiment of the present invention, in which a high temperature cooling water channel (3) and a cooling water return channel (6) upstream of a cooling water pressure pump (7) are connected to a short circuit channel (10). ), And the solenoid on-off valve (13) on the downstream side of the short-circuit connecting part of the high temperature cooling water channel (3).
In addition to the above, the solenoid valve (14) is also installed in the short-circuit path (9) so that the cooling water return path (6) flows into the water jacket of the engine (2) near the return port to the engine (2). A temperature detector (15) that detects the temperature of the cooling water is installed, and both solenoid on-off valves are based on the cooling water temperature detected by this temperature detector (15).
By configuring (13) and (14) to selectively open and close, the temperature-sensing flow path switching valve can be operated by these electromagnetic on-off valves (13) and (14).
(8) is configured. When the temperature of the cooling water flowing into the engine is equal to or lower than the predetermined temperature, the solenoid on-off valve (14) interposed in the short-circuit passage (10) is opened and the high-temperature cooling water passage (3) is interposed. If the temperature of the cooling water flowing into the engine is higher than the specified temperature, the solenoid on-off valve (13) that is in the short circuit (10) is closed. In addition, the electromagnetic on-off valve (13) interposed in the high temperature cooling water passage (3) is opened.
【００１１】そして、電磁開閉弁(13)よりも下流側の高
温冷却水路(３)に放熱器(５)を配置し、この放熱器(５)
に対応させて電動式送風ファン(11)を配置し、電磁開閉
弁(13)と放熱器(５)との間に放熱器(５)に流入する冷却
水温を検出する温度検出具(12)を配置し、この温度検出
具(12)での検出温度に基づき電動式送風ファン(11)の作
動を制御するように構成してある。A radiator (5) is arranged in the high temperature cooling water passage (3) on the downstream side of the electromagnetic on-off valve (13).
An electric blower fan (11) is arranged corresponding to the temperature detection tool (12) for detecting the cooling water temperature flowing into the radiator (5) between the electromagnetic on-off valve (13) and the radiator (5). Is arranged, and the operation of the electric blower fan (11) is controlled based on the temperature detected by the temperature detector (12).
【００１２】そして、電動式送風ファン(11)の作動設定
温度(Ｔ1)は電磁開閉弁(13)(14)の流路切換設定温度(Ｔ
0)より僅かに高い温度に設定してある。そして、本実施
例では、電磁開閉弁弁(13)(14)の流路切換設定温度
(Ｔ0)を７０℃に設定し、電動式送風ファン(11)の作動
設定温度(Ｔ1)を７５℃に設定してある。The operation set temperature (T 1 ) of the electric blower fan (11) is the flow path switching set temperature (T) of the electromagnetic on-off valves (13) (14).
The temperature is set slightly higher than 0 ). Further, in the present embodiment, the flow path switching set temperature of the solenoid on-off valve (13) (14) is set.
(T 0 ) is set to 70 ° C., and the operation set temperature (T 1 ) of the electric blower fan (11) is set to 75 ° C.
【００１３】なお、上記実施例では電磁開閉弁(13)(14)
を開閉制御するための温度検出具(15)をエンジンへの冷
却水戻し口近傍に設けたが、この温度検出具(15)を排ガ
ス熱交換器(４)からの流出部に設けるようにしてもよ
い。In the above embodiment, the solenoid on-off valves (13) (14)
The temperature detecting tool (15) for controlling the opening and closing of the engine is provided near the cooling water return port to the engine. The temperature detecting tool (15) is provided at the outflow portion from the exhaust gas heat exchanger (4). Good.
【００１４】[0014]
【発明の効果】本発明では、エンジンの冷却水を排ガス
熱交換器、放熱器、冷却水圧送ポンプを介して循環させ
るようにし、放熱器をバイパスさせる状態で短絡路を配
置し、放熱器の入口と短絡路との接続部に感温式流路切
換弁を配置し、放熱器と短絡路とを択一的に選択して冷
却水を流すように構成したエンジンの冷却装置におい
て、放熱器に対応させて電動式送風ファンを配置し、こ
の電動式送風ファンを放熱器に流入する冷却水温を検知
して作動するように構成し、この電動式送風ファンの作
動開始温度を感温式流路切換弁での切換設定温度よりも
所定温度高く設定しているので、排ガス熱交換器をへて
流れてきた冷却水温が所定温度に達して、その流通経路
が短絡路から放熱器に切り替わった当初、その冷却水温
度は電動式送風ファンの作動開始温度に達していないこ
とから、送風ファンは作動せず、冷却水は放熱器での自
然放冷により熱を放出することになる。これにより、感
温式流路切換弁が切り替わることに基づきエンジンに戻
って来る冷却水温度は急激に温度低下することがなくな
る。According to the present invention, the cooling water of the engine is circulated through the exhaust gas heat exchanger, the radiator, and the cooling water pressure pump, and the short circuit is arranged in a state where the radiator is bypassed. In a cooling device for an engine, in which a temperature-sensitive flow path switching valve is arranged at a connection portion between an inlet and a short-circuit path and cooling water is flown by selectively selecting the radiator and the short-circuit path, The electric blower fan is arranged corresponding to the above, and the electric blower fan is configured to operate by detecting the temperature of the cooling water flowing into the radiator. Since the temperature is set higher than the set temperature of the switching valve, the temperature of the cooling water flowing through the exhaust gas heat exchanger reaches the predetermined temperature, and the flow path is switched from the short circuit to the radiator. Initially, the temperature of the cooling water was the electric blower fan. Since not reached the operation start temperature, the blower fan is not operated, the cooling water will be released heat by natural cooling in the radiator. As a result, the temperature of the cooling water returning to the engine due to the switching of the temperature-sensitive flow path switching valve does not drop sharply.
【図１】エンジンヒートポンプでのエンジン冷却水循環
系を示す構成図である。FIG. 1 is a configuration diagram showing an engine cooling water circulation system in an engine heat pump.
【図２】エンジンヒートポンプでのエンジン冷却水循環
系の別実施例を示す構成図である。FIG. 2 is a configuration diagram showing another embodiment of an engine cooling water circulation system in an engine heat pump.
２…水冷エンジン、 ３…高温冷却水路、
４…排ガス熱交換器、 ５…放熱器、６…冷却水戻し
路、 ７…冷却水圧送ポンプ、８…感温式
流路切換弁、 10…短絡路、11…電動式送風フ
ァン、Ｔ1…電動式送風ファンの作動開始温度、Ｔ0…感
温式流路切換弁の切換設定温度。2 ... Water cooling engine, 3 ... High temperature cooling water channel,
4 ... Exhaust gas heat exchanger, 5 ... Radiator, 6 ... Cooling water return path, 7 ... Cooling water pressure pump, 8 ... Temperature sensitive flow path switching valve, 10 ... Short circuit path, 11 ... Electric blower fan, T 1 ... operation start temperature of the electric blower fan, T 0 ... switching set temperature of the temperature-sensitive flow path switching valve.
Claims (1)
から導出した高温冷却水路(３)を排ガス熱交換器(４)を
介して放熱器(５)に接続し、放熱器(５)からの冷却水戻
し路(６)を冷却水圧送ポンプ(７)を介してエンジンのウ
オータジャケットに接続し、高温冷却水路(３)と冷却水
圧送ポンプ(７)より上流側の冷却水戻し路(６)とを連通
する短絡路(10)を感温式流路切換弁(８)を介して接続し
た熱回収式エンジンでのエンジン冷却装置において、 放熱器(５)に対応させて電動式送風ファン(11)を配置
し、この電動式送風ファン(11)を放熱器(５)に流入する
冷却水温を検知して作動するように構成し、この電動式
送風ファン(11)の作動開始温度(Ｔ1)を感温式流路切換
弁(８)での切換設定温度(Ｔ0)よりも所定温度高く設定
したことを特徴とする熱回収式エンジンでのエンジン冷
却装置。1. A high-temperature cooling water channel (3) derived from a water jacket of a water-cooled engine (2) is connected to a radiator (5) through an exhaust gas heat exchanger (4) to cool from the radiator (5). The water return path (6) is connected to the water jacket of the engine via the cooling water pressure pump (7), and the cooling water return path (6) is located upstream of the high temperature cooling water path (3) and the cooling water pressure pump (7). In the engine cooling device of the heat recovery type engine in which the short-circuit path (10) communicating with and is connected via the temperature-sensitive flow path switching valve (8), the electric blower ( 11) is arranged and the electric blower fan (11) is configured to operate by detecting the temperature of the cooling water flowing into the radiator (5). The operation start temperature (T) of the electric blower fan (11) heat recovery engine, characterized in that the set predetermined temperature higher than the switch setting temperature of the 1) in a temperature-sensitive channel selector valve (8) (T 0) Of the engine cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24480891A JP2640190B2 (en) | 1991-08-29 | 1991-08-29 | Engine cooling system for heat recovery type engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24480891A JP2640190B2 (en) | 1991-08-29 | 1991-08-29 | Engine cooling system for heat recovery type engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0559946A true JPH0559946A (en) | 1993-03-09 |
| JP2640190B2 JP2640190B2 (en) | 1997-08-13 |
Family
ID=17124255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24480891A Expired - Lifetime JP2640190B2 (en) | 1991-08-29 | 1991-08-29 | Engine cooling system for heat recovery type engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2640190B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609125A (en) * | 1995-05-31 | 1997-03-11 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling an electrically operated cooling fan used for an engine cooling device |
-
1991
- 1991-08-29 JP JP24480891A patent/JP2640190B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609125A (en) * | 1995-05-31 | 1997-03-11 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling an electrically operated cooling fan used for an engine cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2640190B2 (en) | 1997-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08218873A (en) | Cooling device for internal combustion engine | |
| JP2002227646A (en) | Engine with egr cooler | |
| KR100557381B1 (en) | Air Conditioning Device | |
| US6883470B2 (en) | Engine cooling system | |
| JPH0559946A (en) | Engine cooling device of heat recovery type engine | |
| JP2002235968A (en) | Air conditioner | |
| KR101817949B1 (en) | Engine warm-up system and method using the exhaust heat recovery device | |
| JP2001271644A (en) | Method and device for adjusting engine oil temperature | |
| JPH11107754A (en) | Cooling system of internal combustion engine | |
| JP2892114B2 (en) | Air conditioner and its operation method | |
| KR100200518B1 (en) | Hot water circulating type heating device | |
| JPH1113471A (en) | Engine cooling device | |
| JP3733794B2 (en) | Cooling device for internal combustion engine | |
| JPS5854570Y2 (en) | Hot water heat dissipation device | |
| JP2783827B2 (en) | Heating system | |
| JP6971721B2 (en) | Cooling channel system control method | |
| JPH0914676A (en) | Operation controller in warm water heater | |
| JPH03164516A (en) | Heating apparatus for vehicle | |
| JP2903000B2 (en) | Control device for heating system | |
| JPS60248945A (en) | Hot water supplying device | |
| JP4126818B2 (en) | Hot water supply system for heating | |
| JPH0543238Y2 (en) | ||
| KR100209023B1 (en) | A quick heating device of a vehicle | |
| JPS6232087Y2 (en) | ||
| JPS58124132A (en) | Airconditioning equipment combined with hot water supply device |