JPS60147533A - Suction air-cooling device for engine fitted with intercooler - Google Patents

Suction air-cooling device for engine fitted with intercooler

Info

Publication number
JPS60147533A
JPS60147533A JP59001346A JP134684A JPS60147533A JP S60147533 A JPS60147533 A JP S60147533A JP 59001346 A JP59001346 A JP 59001346A JP 134684 A JP134684 A JP 134684A JP S60147533 A JPS60147533 A JP S60147533A
Authority
JP
Japan
Prior art keywords
intercooler
cooling water
engine
suction air
water supplying
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
JP59001346A
Other languages
Japanese (ja)
Inventor
Kazuhiko Ebine
海老根 一彦
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP59001346A priority Critical patent/JPS60147533A/en
Publication of JPS60147533A publication Critical patent/JPS60147533A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04Cooling of air intake supply
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

PURPOSE:To prevent a suction air from being excessively cooled particularly when an engine is run under lighter load, whereby eliminating the chance of incomplete combustion, by providing a secondary cooling water supplying line to an intercooler with a cooling water supplying bypass line and further providing these lines with a flow rate regulating valve. CONSTITUTION:In an engine equipped with an intercooler 2, a cooling water supplying bypass line 13 is provided at a secondary cooling water supplying line 5 to the intercooler 2, and these lines 5, 13 are provided respectively with flow rate regulating valves 9, 10. Further provided are a means for detecting the loaded condition of engine 3, for example, a temperature sensor 11 for detecting the temperature of suction air flowing through an air duct 4 and a controller 12 adapted to actuate respective valves 9, 10 in response to a signal from the temperature sensor 11. When the engine is operated, for example, under a small load, the valve 9 is closed and the valve 10 is in turn opened, and thereby throttling the flow of cooling water passing to the intercooler 2 to prevent a suction air from being excessively cooled.

Description

【発明の詳細な説明】 本発明はインタークーラ付エンジンの給気冷却装置に関
する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charge air cooling device for an engine with an intercooler.

第1図は従来の給気冷却装置の構成図を示す。FIG. 1 shows a configuration diagram of a conventional supply air cooling device.

1は冷却水ポンプ、2はイノタークーラ、3はエンジン
、4はエアダクト、5は冷却水、6はエンジンの給入空
気、7はターボチャージャ、8は排気ガスを示す。
1 is a cooling water pump, 2 is an inotar cooler, 3 is an engine, 4 is an air duct, 5 is a cooling water, 6 is intake air for the engine, 7 is a turbocharger, and 8 is an exhaust gas.

冷却水は、エンジン3の負荷に無関係に、常時インター
クーラ2に通水される。このためターボチャージャ7よ
シ供給される給気6はインタークーラ2で常時冷却され
るため、エンジンの低負荷時は、給込空気6が必要以上
に冷却され、燃焼不良又は白煙の増加を招く不具合があ
る。
Cooling water is constantly passed through the intercooler 2 regardless of the load on the engine 3. For this reason, the intake air 6 supplied from the turbocharger 7 is constantly cooled by the intercooler 2, so when the engine is under low load, the intake air 6 is cooled more than necessary, resulting in poor combustion or an increase in white smoke. There is a problem that can lead to this.

本発明の目的は、前記従来装置の欠点を解消し、エンジ
ン低負荷もしくはアイドリング時に、インタークーラへ
の給水を制約してエンジン給入空気の過冷却を防止し、
燃焼不良、白煙などの発生を・・防いだインタークーラ
付エンジンの給気冷却装置を提供するにある。
An object of the present invention is to eliminate the drawbacks of the conventional device and prevent overcooling of engine intake air by restricting water supply to the intercooler when the engine is under low load or idling.
An object of the present invention is to provide an engine charge air cooling device with an intercooler that prevents poor combustion and the generation of white smoke.

以下第2図を参照して本発明に係るインタークーラ付エ
ンジンの給気冷却装置の一実施例について説明する。
An embodiment of the charge air cooling system for an engine with an intercooler according to the present invention will be described below with reference to FIG.

第2図は過給した給気を外部冷却水で冷却するタープチ
ャージャエンジン(以下インタークーラ付エンジンと略
称)に本発明を応用したもので、1は冷却水ポンプ、2
はインタークーラ、3はエツジ/(エンジンシリンダジ
ャケットなどを冷却するいわゆる一次冷却系及び熱交換
器を含み図示しない)、4はエアダクト、5は二次冷却
水ライン、6は給気、7はターボチャージャ、8は排気
ガス、9は流量調整弁A(オンオフ式まだは調整式)、
lOは流量調整弁B(オンオフ式または調整式)、11
はエアダクト4内を流れる給気温度を検知する温度セン
サ、12は温度センサ11の信号を受け流量調整弁A9
、同BIOを作動させるコントローラ、13は二次冷却
水のエアクーラバイパスライン、14は信号伝達ライン
を示す。
Figure 2 shows an application of the present invention to a tarp charger engine (hereinafter referred to as an engine with intercooler) that cools supercharged air with external cooling water. 1 is a cooling water pump, 2
3 is an intercooler, 3 is an edge/(includes the so-called primary cooling system and heat exchanger that cool the engine cylinder jacket, etc., not shown), 4 is an air duct, 5 is a secondary cooling water line, 6 is an air supply, and 7 is a turbo. Charger, 8 is exhaust gas, 9 is flow rate adjustment valve A (on/off type, but adjustable type),
lO is flow rate adjustment valve B (on-off type or adjustable type), 11
12 is a temperature sensor that detects the temperature of the supply air flowing in the air duct 4, and 12 is a flow rate adjustment valve A9 that receives a signal from the temperature sensor 11.
, a controller for operating the BIO, 13 a secondary cooling water air cooler bypass line, and 14 a signal transmission line.

次に前記実施例の作用について説明する。Next, the operation of the above embodiment will be explained.

エンジン3が高負荷で作動している時は、流量調整弁A
9を開(または開度大)とし、流量調整弁BIOを閉(
または開度率)として冷却水ポンプ1よシ送られる冷却
水を二次冷却水5を介してインタークーラ2に流しエン
ジン3の熱交換器等に送る。
When engine 3 is operating under high load, the flow regulating valve A
9 open (or large opening) and close the flow rate adjustment valve BIO (
The cooling water sent from the cooling water pump 1 as a cooling water opening rate (opening rate) is sent to the intercooler 2 via the secondary cooling water 5 and sent to the heat exchanger of the engine 3, etc.

エンジン3が低負荷になった抄、周囲温度が低下したと
きは、ターボチャージャ7より送られる給気6はインタ
ークーラ2で冷却され、エアダクト4を通じてエンノン
3に供給されるが、空気温度は良好々燃焼に必要な温度
以下に低下するため、これを温度センサ1]が検知し、
コントローラ]2に信号を送る。このコントローラ]2
は信号伝達ライン14を通じて流量調整弁A9を閉(ま
たは開度率)にし、流量調整弁B 1.0を開(または
開度大)として、インタークーラ2に送られる冷却水を
絞り(またはカットし)給気が過冷却されるのを防止す
る。この際冷却水はパイノクスライン13を通じてエン
ジン3に供給される。
When the engine 3 is under low load and the ambient temperature drops, the air supply 6 sent from the turbocharger 7 is cooled by the intercooler 2 and supplied to the ennon 3 through the air duct 4, but the air temperature is good. Temperature sensor 1 detects this as the temperature drops below the temperature required for combustion.
Controller] sends a signal to 2. This controller]2
through the signal transmission line 14, closes the flow rate adjustment valve A9 (or opens the opening rate), opens the flow rate adjustment valve B1.0 (or increases the opening rate), and throttles (or cuts) the cooling water sent to the intercooler 2. ) Prevent the supply air from being supercooled. At this time, cooling water is supplied to the engine 3 through the pinox line 13.

なお負荷の検知手段としては給気温度以外に、排気温度
、エンノンノヤケット冷却水温度などで判定することも
できる。
In addition to the supply air temperature, the load can also be determined based on the exhaust temperature, the cooling water temperature, etc.

前述のとおり、本発明に係るインタークーラ付エンジン
の給気冷却装置は、インタークーラ付ターボチャーツヤ
エンジンにおいて、インタークーラへの2次冷却水供給
ラインに付設されたバイパス冷却水供給ラインと、該冷
却水供給ラインとパイ・ぐスライン内にそれぞれ設けら
れた流量制御弁Aおよび流量制御弁Bと、エンジンの負
荷状態を検出する手段と、この手段よりの信号により流
量制御弁A、Bを制御するコントローラを具え、低負荷
時には流量制御弁Aを絞り流量制御弁Bを開放し、高負
荷時には制御弁Aを開放し同Bを絞るように構成したの
で、エンジンが高負荷時にはエンジンが十分に冷却され
て高出力が確保されるとともに、低負荷時には給気が適
冷されて燃焼が悪化し未燃ガス、HGガス白煙などが排
土されるのを防止し良好な燃焼が得られる利点がある。
As described above, the charge air cooling device for an engine with an intercooler according to the present invention includes a bypass cooling water supply line attached to a secondary cooling water supply line to the intercooler, and a bypass cooling water supply line attached to the secondary cooling water supply line to the intercooler in a turbochart engine with an intercooler. A flow control valve A and a flow control valve B provided in the cooling water supply line and the piping line, respectively, a means for detecting the load state of the engine, and a signal from the means to control the flow control valves A and B. The controller is configured to throttle flow control valve A and open flow control valve B at low loads, and open control valve A and throttle B at high loads, so that when the engine is under high load, the engine In addition to ensuring high output through cooling, the supply air is appropriately cooled during low loads to prevent combustion from worsening and unburnt gas, HG gas white smoke, etc. from being discharged, resulting in good combustion. There is.

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

第1図は従来装置のブロック線図、第2図は本発明に係
るインタークーラ付エンジンの給気冷却装置のブロック
線図である。 1 エンジン、2・・・インターフ 7.5・インター
クーラへの2次冷却水供給ライン、7 ターボチャーツ
ヤ、9・・制御弁A、10・・・制御弁B、11・・エ
ンジン負荷の検出手段、12・・コントローラ、13 
バイパス冷却水供給ライン。
FIG. 1 is a block diagram of a conventional device, and FIG. 2 is a block diagram of a charge air cooling device for an engine with an intercooler according to the present invention. 1 Engine, 2...Interface 7.5.Secondary cooling water supply line to intercooler, 7.Turbochart, 9..Control valve A, 10..Control valve B, 11..Detection of engine load Means, 12... Controller, 13
Bypass cooling water supply line.

Claims (1)

【特許請求の範囲】[Claims] インタークーラ付ターボチャージヤニ/ジンにおいて、
インタークーラ(2)への2次冷却水供給ライン(5)
に付設されたパイ・やス冷却水供給ラインajと、該冷
却水供給ラインとパイ・ぐスライノ内にそれぞれ設けら
れた流量制御弁A(9)および同B(1のと、エンジン
の負荷状態を検出する手段0])とこの手段よシの信号
によシ、流量制御弁A、Bを制御するコントローラθa
を具え、軽負荷時には制御弁Aを絞り四Bを開放し、高
負荷時には制御弁Aを開放し同Bを絞るように構成した
インタークーラ付エンジンの給気冷却装置。
In turbocharged Yani/Jin with intercooler,
Secondary cooling water supply line (5) to intercooler (2)
The flow rate control valves A (9) and B (1) installed in the cooling water supply line and the pipe gas line, respectively, and the engine load condition A controller θa that controls the flow rate control valves A and B according to a signal from this means.
A charge air cooling system for an engine with an intercooler, which is configured to throttle control valve A and open control valve B when the load is light, and to open control valve A and throttle control valve B when the load is high.
JP59001346A 1984-01-10 1984-01-10 Suction air-cooling device for engine fitted with intercooler Pending JPS60147533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59001346A JPS60147533A (en) 1984-01-10 1984-01-10 Suction air-cooling device for engine fitted with intercooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59001346A JPS60147533A (en) 1984-01-10 1984-01-10 Suction air-cooling device for engine fitted with intercooler

Publications (1)

Publication Number Publication Date
JPS60147533A true JPS60147533A (en) 1985-08-03

Family

ID=11498927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59001346A Pending JPS60147533A (en) 1984-01-10 1984-01-10 Suction air-cooling device for engine fitted with intercooler

Country Status (1)

Country Link
JP (1) JPS60147533A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011214544A (en) * 2010-04-01 2011-10-27 Denso Corp Intake air temperature control device of internal combustion engine
JP2016125431A (en) * 2015-01-06 2016-07-11 新潟原動機株式会社 Intake temperature control device for internal combustion engine
JP2020105912A (en) * 2018-12-26 2020-07-09 マツダ株式会社 Intake temperature control device for engine with supercharger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4711601U (en) * 1971-03-04 1972-10-12
JPS5333707B2 (en) * 1975-04-24 1978-09-16
JPS58150024A (en) * 1982-03-02 1983-09-06 Toyota Motor Corp Intake-air temperature control device in internal-combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4711601U (en) * 1971-03-04 1972-10-12
JPS5333707B2 (en) * 1975-04-24 1978-09-16
JPS58150024A (en) * 1982-03-02 1983-09-06 Toyota Motor Corp Intake-air temperature control device in internal-combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011214544A (en) * 2010-04-01 2011-10-27 Denso Corp Intake air temperature control device of internal combustion engine
JP2016125431A (en) * 2015-01-06 2016-07-11 新潟原動機株式会社 Intake temperature control device for internal combustion engine
JP2020105912A (en) * 2018-12-26 2020-07-09 マツダ株式会社 Intake temperature control device for engine with supercharger

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