JPS6090916A - Coolant boiling and cooling apparatus internal- combustion for engine - Google Patents

Abstract

PURPOSE:To improve controllability of a control system, by providing a passage connecting a small tank disposed on the outside of the system to the inside of the system constituting an enclosed cooling system, and executing air discharging control, cold start control, hot start control, etc. through control of a plurality of solenoid valves. CONSTITUTION:In cast that the temperature of a coolant after starting of an engine is higher than a predetermined value (for instance, 45 deg.C), cold start control is executed when a solenoid valve 4 disposed in a pipe 18 extended between a small reservoir tank 7 and a lower tank 15 of a condenser 14 is opened, for instance, through detection of a liquid-level sensor 8 that the liquid surface is lower than the uppermost position in a system. That is, boiling of a coolant is started at first by opening solenoid valves 2, 3 while closing solenoid valves 1, 4, and liquid coolant is forced into the reservoir tank 7 from the lower position of a cooling jacket 12 by use of the vapor pressure. When the liquid surface is lowered to the position of a liquid-level sensor 9, the solenoid valve 2 is closed while the solenoid valve 4 is opened to discharge coolant in the condensor 14 into the reservoir tank 7 via the pipe 18.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は、内燃機関、例えば自動車用エンジンの沸騰
６月１装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a boiling June 1 device for internal combustion engines, such as motor vehicle engines.

［従来技術］ 従来の内燃機関の沸騰冷却装置としては、例えば第１図
に承りようなものがある（特開昭５１−１３７０４４号
公報参照）。[Prior Art] As a conventional boiling cooling device for an internal combustion engine, there is one shown in FIG. 1, for example (see Japanese Patent Laid-Open No. 137044/1983).

これは、冷ｕ１ジＶケットＪに液相冷媒を満し、その気
化潜熱で熱を奪い、コンデンサにで放熱液化する方式で
窄気扱きフィルタＦで系を大気開放どするものである。This is a system in which a liquid-phase refrigerant is filled in a cold U1 di-Vette J, and the latent heat of vaporization takes away heat, and the heat is liquefied in a condenser, and the system is opened to the atmosphere using a filter F that handles constricted air.

しかしながら、この従来のものは、フィルタが気体を外
部に通してしまうので、ここから徐々に蒸気が失われ、
たびたび冷ｕ１水を補給しなければならないし、エンジ
ン停止後は、系内の蒸気の凝縮に伴い、該フィルタから
不凝縮気体である空気を多聞に吸引してしまい、再始動
後、空気が」ンデンザに内に残留し易く、放熱効率が低
下づる欠点のあるものであった。However, with this conventional type, the filter allows the gas to pass through to the outside, so steam is gradually lost from there.
Cold U1 water must be replenished frequently, and after the engine is stopped, as the steam in the system condenses, a large amount of air, a non-condensable gas, is sucked in from the filter, and after the engine is restarted, the air... This has the disadvantage that it tends to remain in the heat sink, reducing heat dissipation efficiency.

このように、従来の内燃機関の沸騰冷却装置にあっては
、冷却系が常に人気開放された構造となっていたため、
運転中、コンデンリ内に空気が残留しゃ１Ｊ−り、放熱
効率が低く、エンジン停止後も系内の蒸気のｉｕ　ｉ！
ｉに伴い空気を多量に吸引してしまい、再始動後も増１
（放熱効率が低重づると（１つ問題や、系内の液相冷媒
が徐々に失われたびたび補給しなければならないという
問題点があった。In this way, in conventional boiling cooling devices for internal combustion engines, the cooling system was always open to the public.
During operation, 1J- of air remains in the condenser, resulting in low heat dissipation efficiency, and even after the engine is stopped, steam in the system still remains.
Due to i, a large amount of air is sucked in, and the amount increases by 1 even after restarting.
(One problem was that the heat dissipation efficiency was low, and the liquid phase refrigerant in the system was gradually lost and had to be replenished frequently.

そこＣ１木出願人は先願としＣ特［ｉ昭５８−８６６３
２号を始め、その他の出願をし、上述の空気混入及び熱
弁損失の防止を図るべく対処した。Therefore, the applicant for C1 tree should be the first to apply for the C patent [i.
No. 2 and other applications were filed to prevent the above-mentioned air entrainment and hot valve loss.

しかしながら、イの後のｒｔｌｌ究聞介にＪ、す、該装
置の冷却性能を更に向上さＵるためには、空気抜さ又は
通常運転の制御に加えて、コールドスター１〜又は小ツ
１〜スター１〜雪の制９１１をさめ細かに？Ｊ　’、ｒ
うことが必要であることが分って来た。However, in order to further improve the cooling performance of the device, in addition to controlling the air release or normal operation, it is necessary to ~ Star 1 ~ Detailed snow control 911? J', r
I realized that I needed to do something.

［発明の目的］ この発明は、従来の問題点に省Ｌｌ−！Ｉると」ξに、
先願を更に改良し、沸騰冷ｙＩＩ装置の制御として、Ａ
空気ＪＪＩ出、１３　ｍｌ−ルドスタート、Ｃホラ１〜
スターｉ〜、Ｄ通常運転及び［ｇ　Ｉシリン停止の各制
御を有効、かつ確実に、行なうことがひぎるようにづる
ことを目的とづる。[Object of the Invention] This invention eliminates the problems of the prior art! I and 'ξ,
Further improving the previous application, A
Air JJI out, 13 ml - cold start, C Hola 1~
The purpose of this manual is to make it possible to effectively and reliably perform the controls for Star i~, D normal operation, and [g I cylinder stop].

［発明の構成］ この発明は上記目的を達成するため、エンジンスター１
へ直後、系内に混入した不凝縮気体を液相冷媒と置換し
、運転中の大部分を液相冷媒と、該液相冷媒が沸騰によ
り相変化した気相冷媒とにより満された密［３ＩＪ冷却
系を形成づるように構成づる一方、エンジン停止後、系
外の小型タンク内の液相冷媒を系内の気相冷媒の凝縮に
伴う負圧を防止づべく吸引させるように構成した内燃機
関の沸ｌｌを冷却装置にａ３いて、系外の小型タンクと
密閉冷却系を形成する系内とを接続り゛る通路として、
該小型タンクと、シリンダブ］」ツク内冷２Ｊ１ジヤケ
ツ１〜を結ぶ配管、コンデンサロワタンクを結ぶ配管、
ａ３　Ｊ：び、供給ポンプの吸入側を結ぶ配管をＦ＝Ｕ
　Ｇノると共に、それぞれの配管に該通路の開閉手段を
設（）たものである。[Structure of the Invention] In order to achieve the above object, the present invention provides an engine star 1
Immediately after, the non-condensable gas that has entered the system is replaced with a liquid phase refrigerant, and most of the time during operation is filled with the liquid phase refrigerant and the gas phase refrigerant whose phase has changed due to boiling of the liquid phase refrigerant. The internal combustion engine is configured to form a 3IJ cooling system, and after the engine is stopped, the liquid refrigerant in a small tank outside the system is sucked in to prevent negative pressure caused by condensation of the gas refrigerant in the system. The boiler of the engine is connected to the cooling system, and as a passage connecting a small tank outside the system and the inside of the system forming a closed cooling system.
Piping connecting the small tank and the cylinder tube inner cooling 2J1 jacket 1 ~, piping connecting the condenser lower tank,
a3 J: and connect the pipe connecting the suction side of the supply pump with F=U.
In addition, each pipe is provided with means for opening and closing the passage.

［作用］ 空気排出、コールドスタート、ホットスタート、通常運
転おＪ、び土ンジン停止の各制御を、一連のｂのとして
各通路の開閉手段である電磁弁を適切に開閉することに
Ｊ、す（−」うようにしたので、系内には、空気がなく
、かつつＡ−クジ１フケツト及び−１」ワタツクのｉ＆
而が所定値に保たれる密閉クローズドシステムを得るこ
とができた。[Function] Air exhaust, cold start, hot start, normal operation, and engine stop are controlled by appropriately opening and closing the solenoid valves, which are means for opening and closing each passage, as a series of b. (-), so there is no air in the system, and at the same time, there is no air in the system.
We were able to obtain a hermetically sealed closed system in which the temperature was maintained at a predetermined value.

「実施例」 第２図は、この発明の一実施例を承り図である。"Example" FIG. 2 is a diagram of an embodiment of the present invention.

まず構成を説明りると、１が系内の最上端とリザーブタ
ンク（系外の小型タンク）７を結ぶ空気排出用通路の開
閉を？ｊう電磁弁、２がシリンダブロックの冷却ジＩｌ
ゲツ１〜１２とリザーブタンク７を結ぶ通路の開閉を行
う電磁弁、３がコンデンサ１４の１」ワタツク１５と冷
Ｍｌジレケツト１２を結ぶ通路の開閉をｉ′Ｊう電磁弁
、４がリザーブタンク７とコンデンサロワタンク１５、
あるいは、すＩＪ’　−ブタツク７と冷７ＪＩジＶクツ
１〜１２の通路の開閉をｉｊう電磁弁で（ｂる。First, to explain the configuration, 1 opens and closes the air exhaust passage connecting the top end of the system and the reserve tank (small tank outside the system) 7. The solenoid valve 2 is the cylinder block cooling valve.
3 is a solenoid valve that opens and closes the passage that connects the ports 1 to 12 and the reserve tank 7; 3 is the solenoid valve that opens and closes the passage that connects the condenser 14 and the cold Ml socket 12; 4 is the solenoid valve that opens and closes the passage that connects the cold Ml socket 12; and condenser lower tank 15,
Alternatively, a solenoid valve may be used to open and close the passages between the IJ'-button 7 and the cold 7JI shoes 1 to 12.

８が系内の最上Ｖ２ｊに設りられた液面レンリー、９が
シリンダヘッド内冷ｕＪジ１ｚケツ１〜１３の水位を検
出覆る液面レンリ、１０がコンデシリロワタンク１５内
の液面セン１）、５が液相冷媒をエンジンの冷却ジャク
ツ１へに供給する小型ポンプ、６が」ンデンザ１４に送
風する冷１ｊフアンＣある。また、エンジンの冷却ジャ
ケット１３内には温度セン４ノ１１が設【プられている
。8 is a liquid level receptacle installed at the top V2j in the system, 9 is a liquid level receptacle that detects and covers the water level of the cooling UJ 1z butts 1 to 13 in the cylinder head, and 10 is a liquid level sensor in the condenser lower tank 15. 1), 5 is a small pump that supplies liquid-phase refrigerant to the cooling jack 1 of the engine, and 6 is a cooling fan C that blows air to the engine cooling jack 14. Further, a temperature sensor 4/11 is provided inside the cooling jacket 13 of the engine.

１６が小型の供給ポンプ５の吸入側、１７が冷１４１ジ
ヤケツ１−１２とリザーブタンク７を直接結ぶ通路即ち
配管、１８がリザーブタンク７どコンデンサロワタンク
１５を結ぶ通路、１９がリザーブタンクと供給ポンプ５
の吸入側１６とを結ぶ通路であり、通路１９は供給ポン
プ５を介してウオークジ＋７り“ット１２に接続するも
のである。16 is the suction side of the small supply pump 5, 17 is a passage or piping that directly connects the cold 141 jacket 1-12 and the reserve tank 7, 18 is a passage that connects the reserve tank 7 and the condenser lower tank 15, and 19 is the reserve tank and supply. pump 5
The passage 19 is connected to the walkway 12 via the supply pump 5.

従って、電磁弁４は前述のように、通路１８あるいは通
路１９の開閉を１個で行なう。Therefore, as described above, one solenoid valve 4 opens and closes the passage 18 or the passage 19.

次に、上記実施例の制御システムの作動を説明づ−る。Next, the operation of the control system of the above embodiment will be explained.

まず、制御プログラムとして基本的なジ〕−ネラルフロ
ーヂャ−］〜を第５図に承り。First, the basic control program [-neural flow]~ is shown in Figure 5.

ジエネラルフ（］−制御（第５図） エンジンスター１−後、温度センリ“１１により、比較
的低温に設定された冷媒温度（仮に４５℃とづる）以下
の場合と、それ以上の場合とを判断さμ、２系統にソ１
−１−を分りる。Generalf () - Control (Fig. 5) After engine star 1, temperature sensor 11 determines whether the refrigerant temperature is below a relatively low temperature (temporarily set at 45°C) or above. μ, 2 systems and 1
Understand -1-.

（１）　設定温度以下の場合（系内が液相冷媒でＣ，Ｌ
ぽ満されている場合）は、次に、最上端の液面セン１す
８により、系内上部に空気が存在しているか、いないか
を判断さＵる３、この液面センリー８が液相冷媒に植１
にされｆ液が無いこと、即ち、空気が存在しているど判
断したら、Ａ空気排出制御を１うう。Ｊ、た、液面セン
サ８が液があり従って空気が存在し−Ｃい４１いと判Ｉ
ｌｉシたら、Ｂコールドスター１・制御に入る。(1) When the temperature is below the set temperature (with liquid phase refrigerant in the system)
If the liquid is full), then the liquid level sensor 18 at the top determines whether or not there is air in the upper part of the system. Plant 1 in phase refrigerant
If it is determined that there is no F liquid, that is, that air is present, the A air discharge control is activated. J, the liquid level sensor 8 indicates that there is liquid and therefore air is present.
Once lit, enter B Cold Star 1 control.

（２ン　設定？：ｌＡＩ哀を超えＣいる場合（系内が液
相気相の２４１Ｊ　０）冷奴が其存し−Ｃいる場合）は
、後述りるＬエンジンイア１後の制御と関連して、リザ
−ブタンク７ど二＋ン）：′ン（ノロワタンク１５を結
ぶ通路（配管）１８が連通しているか、していないかの
判断として、電磁弁４が閉じＣいるか、いないか、（通
電しでいるか、いないが）を判Ｉｇｉリ−る。(2nd setting?: If C exceeds lAI (241J0) in the liquid phase gas phase in the system and there is cold tofu and -C), it is related to the control after L engine year 1 described later. To determine whether the passage (piping) 18 connecting the reserve tank 15 is communicating or not, check whether the solenoid valve 4 is closed or not ( Check whether the power is on or not.

電磁ブｌ′４が閉じ（いると判断した場合は、Ｃホラ１
ヘスタート制御を経て、Ｄ通常運転制御に入る。The electromagnetic block 1'4 is closed (if it is determined that the C hole 1 is closed)
After the start control, the D normal operation control is entered.

電磁弁４が聞いていると判断した場合は、Ｂコールドス
タート制御を経て、Ｄ通常運転制御に入る。If it is determined that the solenoid valve 4 is listening, the control goes through B cold start control and then enters D normal operation control.

Δ空気排出制御（第６図及び第２図参照）第６図にＡ空
気υ１出制御のノローヂ１１−１〜図を示すが、先の最
上端液面センサ８が液がないと判断したら電磁弁１，４
を（ｉＦＪき、電磁弁２，３を閉じて、ポンプ５を回転
作動することによりリリ“−ブタンクツ内の液を系内に
供給し、系内上部に残存していた空気を電磁弁１を通し
て排出づる。９１アープタンク７は上部が人気開放され
ているので空気は人気に逃げ、液は該リザーブタンク内
に溜まる。このときの状態を第２図に示Ｊ、液面ａが上
昇し、系内を満水にし１ζ結宋、該液面セン１ｊ８が液
があると判ＩＷｉ　シたら、電磁弁１，４をＥＪじ、電
磁弁２．３をｌ？ｆｌいて、供給ポンプ５をＡ）とＪる
。これにより空気排出制御を終了づ゛る。Δ Air Discharge Control (Refer to Figures 6 and 2) Figure 6 shows the flow rate 11-1 of the A air υ1 output control.If the uppermost liquid level sensor 8 determines that there is no liquid, Valve 1, 4
(iFJ), close the solenoid valves 2 and 3, and rotate the pump 5 to supply the liquid in the reservoir tank into the system, and the air remaining in the upper part of the system to pass through the solenoid valve 1. Since the upper part of the 91 Arp tank 7 is open, the air escapes and the liquid accumulates in the reserve tank.The situation at this time is shown in Figure 2.The liquid level a rises and the system When the inside is filled with water and the liquid level sensor 1j8 detects that there is liquid, the solenoid valves 1 and 4 are set to EJ, the solenoid valve 2.3 is set to l?fl, and the supply pump 5 is set to A). J. This ends the air exhaust control.

Ｂ］−ルドスタート制御（第７図、第２図、第３図及び
第４図参照） 第７図にＢコールドスター１〜制御のフローブ］ｌ−１
・図を示づ。系内は前回の制御終了時ど同じに液相４傳
；でψ）水の状態から開始される。まず、最初に、電磁
弁制御は、これも前回制御終了＋１５とｌ１ｉ１様に、
電磁弁２．３が１１）１いてＪ３す、電磁弁１，４か開
じている。B] - cold start control (see Figure 7, Figure 2, Figure 3 and Figure 4)
・Show a diagram. The system starts from the same liquid phase as at the end of the previous control; ψ) water state. First of all, the solenoid valve control is also like the previous control end +15 and l1i1.
Solenoid valve 2.3 is 11) J3, and solenoid valves 1 and 4 are open.

液相冷媒がθ１：１流を開始すると、系内の上部に蒸−
一、つまり、気相冷媒か溜まり、その蒸気圧により電磁
弁２を通しＣ，液相冷媒がシリンダブロックの干娼：、
冷ノＪＩジ１１グツ１−１２の下方から、リザーブタン
ク７に押し出される。このＪ、うにりるど、冷ｌｕｌジ
丸・フット１・部の力の比較的低温の液相冷媒が先にＤ
）出されるため、暖機性１１シが向上りる。When the liquid phase refrigerant starts flowing θ1:1, vaporization occurs at the top of the system.
1. In other words, the vapor phase refrigerant accumulates and passes through the solenoid valve 2 due to its vapor pressure.The liquid phase refrigerant flows into the cylinder block.
It is pushed out into the reserve tank 7 from below the cold JI pipes 1-12. In this J, the relatively low-temperature liquid phase refrigerant of the force of 1 part of the cold lulji circle is D first.
), which improves warm-up performance.

この状態ｆＬ　、　ｆｆｉ　３図のシリンダヘッド内の
液面を検出りる液面ｅンリ０の位置、つまり通常レベル
以上に水１ηがするＪ、で続ｆ）され、液面が通常レベ
ル以−１・になると、電磁弁２を開じ、電ｆ台弁４を聞
く。このＩｌ、′Ｉｊ：、ｉて・は、コンテン１ノ１４
内は液相冷に１゛（充満されている。そこで、発生蒸気
の増加による辻力（、Ｘ１ンｊ゛ンリ内の液相冷媒は、
この電磁弁４を軽（通路１８を通ってり１Ｆ−ブタンク
ツ内に排出される。In this state fL, ffi 3, the liquid level in the cylinder head is detected at the position where the liquid level is 0, that is, the water level is above the normal level (f), and the liquid level is below the normal level. When it reaches 1, open the solenoid valve 2 and listen to the electric power stand valve 4. This Il,'Ij:,ite・is content 1 no 14
The inside of the tank is filled with liquid phase cooling. Therefore, the liquid phase refrigerant inside the tank is
This electromagnetic valve 4 is discharged through the light passage 18 into the 1F tank.

一方、冷却ジャケット１３内で沸騰により、液面センサ
９より液面が減少づるど、液面セン９９の信号に従い、
供給ポンプ５によりロソタンク１５の液４１Ｊ冷奴をｈ
ｌｉ充づることで、シリンダヘッド内冷１ＪＪジ（Ｉケ
ット１３の液面を一定に保つ。On the other hand, as the liquid level decreases due to boiling in the cooling jacket 13, the liquid level decreases according to the signal from the liquid level sensor 99.
Supply 41J of liquid in Roso tank 15 using supply pump 5.
By filling the cylinder head with liquid, the liquid level in the cylinder head (Iket 13) is kept constant.

やがて、コンデンサロワタンク１５丙の液面がドっで、
第４図のように液ｗ１ｔ？ン１ノ１ｏの位置に達づると
、液面センサ１ｏの検出により、電磁弁４を閉じてコー
ルドスター１〜制御を終了りる。つまり、この制御終了
時は、シリンダヘッド及びロワタンク共に、液相冷媒が
通常レベルに有り、電磁弁１，２、及び４が閉状態に有
るので、系内は完全なりローズドリイクルとなっ−Ｕｄ
３す、通１；ｉ運転ｉｉｌ制御の状態に入っていること
を示している。Eventually, the liquid level in the condenser lower tank 15cm dropped,
Liquid w1t as shown in Figure 4? When the cold star 1 reaches the position 1o, the electromagnetic valve 4 is closed based on the detection by the liquid level sensor 1o, and the cold star 1 control is ended. In other words, at the end of this control, the liquid phase refrigerant is at the normal level in both the cylinder head and lower tank, and the solenoid valves 1, 2, and 4 are closed, so the system becomes completely low refrigerant.
3, Pass 1; Indicates that the system is in the i-operation and i-il control state.

Ｃ小ツ１−スター１−ｉｌｉＩＩ御（第８図及び第３図
参照）第３図は、」−ルドスタ−１・途中にｄ３いて、
１ンジンキーＡノされ、かつ、後述りる、Ｅエンジン停
止後の制御にＪ、り系内の密１２１が保たれた状態で再
始動された場合であり、要するに、通常運転制御の前段
階の場合（゛ある。C Small 1-Star 1-iliII (see Figure 8 and Figure 3) Figure 3 shows "-Rudstar-1" with d3 in the middle,
This is a case where the engine key A is pressed and the E engine is restarted with the control after stopping the engine maintained at 121, which will be described later. There are cases.

この状態では、系内は液相冷媒と蒸気（気相冷媒）とに
Ｊ、リイ−またされているが、液相冷媒が必要以」二に
系内に存在しＣいる場合として省えられる。In this state, the system contains liquid phase refrigerant and vapor (vapor phase refrigerant), but since liquid phase refrigerant is not necessary, this can be omitted as the case where there is C in the system. .

従って、Ｊｊ−１”、シリンダヘッド内冷ＪＪＪジ１１
クツ！−内に、液面ピン１ノ９以上に液面が′）ヱし−
Ｃいる場合は、電磁弁２４聞き通常レベルＪ、で下り゛
、その後電磁弁２を閉じる。Therefore, Jj-1'', cylinder head cold JJJji11
Shoes! - Inside, the liquid level is above the level pin 1 to 9.
If so, the solenoid valve 24 is normally lowered to level J, and then the solenoid valve 2 is closed.

次に、シリンダヘッド内の液面を一定に保つＪ：う制御
しながら、］ンシ゛ン→ノ１４内に、液面１′！ン１ノ
’Ｉ　０以上に液面が達し−Ｃいる場合は、電磁弁４を
間さ、１１ソタンク１５の液面センリ１０にＪ：す、通
常レベルになつ／ｊどころで電磁弁１を閉じ、ホットス
ター１へ制御を終了り−る。これらの流れは第８図のフ
ローチ１７−１・図に示されている。Next, while controlling the liquid level in the cylinder head to be constant, the liquid level in the cylinder → 14 is increased to 1'! When the liquid level reaches 0 or higher, close the solenoid valve 4 and check the liquid level 10 of the tank 15. When the liquid level reaches the normal level, close the solenoid valve 1. Close and end control to Hot Star 1. These flows are shown in flowchart 17-1 of FIG.

１つ通富連ｉ１ガ制ρＩＩ　（Ｈ５９図及び第４図参照
）第９図に通常運転制御のフローテレ−１〜図を承り。One Tsutsufuren i1 gas control ρII (See Figure H59 and Figure 4) Figure 9 shows flow tele-1 to diagrams for normal operation control.

この場合は第１図に示すごとく、系内は密閉されくいる
（電磁弁１．２．４は開で電磁弁３のみ開である）。In this case, as shown in FIG. 1, the inside of the system is sealed (electromagnetic valves 1, 2, 4 are open and only electromagnetic valve 3 is open).

この制御は、系内の水位制御ど温度制御を行うもので、
水位制御としては、シリンダヘッド内水位を設定以下に
ならないように制御し、かつ、コンデンザロワタンク内
水位をＣ９定以上にならないにうに制御づ゛ることで、
エンジンの冷７ＪＩ性能、コンデン１すの放熱効率を良
好に保つようにしている。This control controls the water level and temperature within the system.
The water level is controlled by controlling the water level in the cylinder head so that it does not go below a set level, and by controlling the water level in the condenser lower tank so that it does not go above a C9 constant.
The engine's cold 7JI performance and condenser heat dissipation efficiency are maintained at a good level.

温度制御はエンジンの点火パルス、吸入空気量信号等に
より運転条件を判ｌ！Ｉｉシ、運転条件に応じＣ可変に
づることも容易である。Temperature control determines operating conditions based on engine ignition pulse, intake air amount signal, etc. It is also easy to make the C variable depending on the operating conditions.

１ヨエンジン停止［後の制！ｌＩ　（第１０図及び第２
図参照） 第１０図にエンジン停止後の制御を承りが、エンジン停
止ど同時に、前制御と同様に、電磁弁１゜２．４を閉じ
、電磁弁３を間に制御し系内を密閉状態に保持する。即
ち、系内の冷媒湿度を温瓜センリ１１により監祝し、系
内温度が大気圧以下の設定した負圧上ての冷媒沸点温度
に達するまで密閉を保ち、該温度に達した後は電磁弁４
を開さ、系内の蒸気の凝縮に伴う負圧を防止するように
リザーブタンク７内の液相冷媒を吸引させる。このどさ
吸引される液相冷媒ＬＪ　′、ｚ磁弁４，３を経で、コ
ンデンリ側Ｌ１ツタンク１５から導入するようにりる。1. Engine stopped [later control! lI (Fig. 10 and 2
(See figure) Figure 10 shows the control after the engine has stopped.As soon as the engine is stopped, solenoid valves 1, 2, and 4 are closed, and solenoid valve 3 is controlled between them to seal the system. to hold. That is, the humidity of the refrigerant in the system is monitored by the warming sensor 11, and the system is kept sealed until the temperature in the system reaches the boiling point temperature of the refrigerant above the set negative pressure, which is below atmospheric pressure. valve 4
is opened, and the liquid phase refrigerant in the reserve tank 7 is sucked in to prevent negative pressure due to condensation of vapor in the system. The liquid phase refrigerant LJ' that is sucked in is introduced from the L1 tank 15 on the condenser side via the Z magnetic valves 4 and 3.

Ｊ−ンジントン’　Ｊｌ−１白１身１３１、まだ正Ｌ１
の場合があり、このときに電磁弁４を聞くと、コンデン
サ１」ワクンク内の液相冷媒が［Ｊｊ出されてしまうの
で、必要以」−にり１アープタンク７の容積を人さくし
なけれはなら４ｆくなる。従って、エンジン停止後は、
系内の蒸気がｉん１１０低１・してやや凝縮が進んだ後
、系内が負ｒ−１に４１つに時点でリザーブタンクと連
通りることか８曹となる。この負圧４検出りるには、人
気ｊ１のしと（゛の玲媒沸点即ら１００℃以トのある設
定ｉＡ＋１１良（例えば９７°ＣＩＪ′Ｘ適当）にｊヱ
した１１．１点Ｃ−１このＲ＋Ａ　Ｉｎを（σ）出する
ことＣ′足りる。J-Njinton' Jl-1 white 1 body 131, still correct L1
At this time, if you listen to the solenoid valve 4, the liquid phase refrigerant in the condenser 1 will be discharged, so you will have to reduce the volume of the tank 7. It becomes 4f. Therefore, after the engine stops,
After the steam in the system reaches 110 degrees and condenses a little, the system reaches negative r-1, which means it is connected to the reserve tank and becomes 8 Sodium. In order to detect this negative pressure 4, the most popular method (11.1 point C set to IA + 11 good (for example, 97° CIJ' -1 It is sufficient to produce (σ) this R+A In by C'.

すな４つら、系内の圧力に３＝Ｉ　Ｌ、、飽和蒸気温度
、あるいは飽和水温度が大凡正確に対応りることから系
内１１１１１１度を検出りれば充分であり、このときの
温度を検出りる温度センサは、先の系内渇Ｉｆｉ制御に
用いたしのを利用１：きる。In other words, 3 = I L, saturated steam temperature, or saturated water temperature roughly corresponds accurately to the pressure in the system, so it is sufficient to detect 111111 degrees in the system, and the temperature at this time is The temperature sensor that detects the temperature is the same as that used for the system temperature control described above.

また、系内の１・−ｊ閉を保つ手段としては、エンジン
停止後も、電磁弁の給電制御用］ン１〜ロールユニッ１
〜の通電が断たれないように構成し、温度はン４ノの検
出信号により、系内温１肛が前）本の飽和温１豆にｊ￥
Ｊるよでリレーを作動し、該温度に達したとき始めてコ
ン（−〇−ルユニツ１〜の通電を断つようにりる。この
とぎ電磁弁はリベて間部に通電を断つわりであるが、電
磁弁４は当然、通電１１１に閉のｂのを使用づ−る。な
お、電磁弁３も通電時閉であり、電磁弁１，２は共に、
通電１１４聞ぐある。In addition, as a means of keeping 1 and -j closed in the system, even after the engine has stopped, the solenoid valve power supply control unit 1 to roll unit 1 is kept closed.
It is configured so that the power supply to ~ is not cut off, and the temperature is determined by the detection signal of n4.
Activate the relay at the J side, and only when the temperature reaches the specified temperature will it cut off the electricity to the unit (-〇-ru unit 1~). Of course, the solenoid valve 4 is closed when energized 111.The solenoid valve 3 is also closed when energized, and both solenoid valves 1 and 2 are closed when energized.
I have heard of 114 electricity.

また、す１ｆ−ブタンク７の液相冷媒を電磁弁４゜３を
紅てコンデンサ１−１ワタンク１５から吸引さＵる理由
は、小山でも系内に混入していた空気が凝縮イ１用によ
りコンデン１）内に東まる１７１．　負があるため、コ
ンデンサの１・から液面を上ツ１ざゼ、その混入空気を
系内の上部に移動させるようにづるためである。このよ
うにしてＪ３　＜と１次の空気排出制御の際、効果的に
空気を抜くことができる。In addition, the reason why the liquid phase refrigerant in the tank 7 is sucked from the tank 15 of the condenser 1-1 by turning the solenoid valve 4. Conden 1) Higashimaru 171. This is to raise the liquid level from the capacitor 1 and move the mixed air to the upper part of the system. In this way, air can be effectively evacuated when J3 < and primary air exhaust control is performed.

以上の各５個の制御と４個の電磁弁の開目１関係を第１
１図に一括して承り。The relationship between each of the five controls and the opening of the four solenoid valves is expressed as follows.
We accept one drawing at a time.

なお、第２図に示り゛ように、電磁弁４をパイバスしＣ
１−息鎖線のように、リザーブタンク７と１」ワタンク
１りを電磁弁２０を介しＣ直接、接続しても同様の１７
１・用効果を生ずる。In addition, as shown in Fig. 2, the solenoid valve 4 is bypassed and C
Even if the reserve tank 7 and the tank 1 are connected directly via the solenoid valve 20 as shown in the dashed line, the same result will occur.
1. Produces a medicinal effect.

以上、６と明しできたＪζうに、この発明によれば、そ
の構成を適量の油相冷媒を満たした系外の小型タンクと
密閉冷却系を形成Ｊる系内とを、シリングブしノック内
ｉｉｉ　ＪＪｌシ＼ノケツ１−に通ずる通路と、コンデ
ンサＩＪ　ロワタンクに通−ｆる通路と、供給ポンプの
吸入側に通ｉ°る通路によつ−Ｃ結び、途中の電磁す？
を開閉りることで、液相冷媒のみを必要量だけ出入さμ
゛′１２気が１ジ入りることを防ぐよう制御したＩこめ
、ｉ；３に、ｆ１ンノ５ンリの放熱効率を良りｆに保つ
ことがでさ、かつ、液相冷媒がほとんど失われないよう
にでさ、また、系外のタンク−６小さくて済むようにり
″ることができる効果が得られる。According to the present invention, the configuration is such that a small tank outside the system filled with an appropriate amount of oil phase refrigerant and the inside of the system forming a closed cooling system are connected in a shilling block. iii Connect the passage leading to the JJl hole 1-, the passage leading to the condenser IJ lower tank, and the passage leading to the suction side of the supply pump, and connect the electromagnetic cable in the middle.
By opening and closing, only the required amount of liquid phase refrigerant can be taken in and out.
It is possible to keep the heat dissipation efficiency of f1 to 5 to a good value f, and the liquid phase refrigerant is almost lost. In addition, the tank outside the system can be made smaller.

以−１・に実施の態様を列記りる。The embodiments are listed below-1.

（１）　エンジン（＜＜止題、系内がる干負圧になるま
で冷７Ｊ１系の密閉を１′Ａ：つように構成し、設定負
圧以下になったどさ゛上記小型タンクとコンデンサロワ
タンクをし１１ぶ配管の途中の開閉手段である電磁弁を
聞き、タンク内の液相冷奴を吸引覆るようにしたこと。(1) Engine (<< End, the cold 7J1 system is sealed in 1'A: until the negative pressure inside the system drops, and when the negative pressure drops below the set value, the above small tank and condenser By listening to the solenoid valve, which is the opening/closing means in the middle of the lower tank piping, the liquid-phase cold tofu in the tank was suctioned and covered.

（２）　不凝縮気体を液相冷媒と置換し、系内をｉｆ＋
：水にした後、発生蒸気空間分の液相冷媒を系外に排出
りる通路として、１ンジン冷却ジ１７ケツトの液相冷奴
【よ小型タンクどシリンダブロック内冷んｊジレケット
どをむりぶ配管途中の電磁弁を間さ、必要■だけ小型タ
ンクに排出Ｊるよう通路を設【ノると共に、」ンデンリ
の液相冷媒は小型タンクど＝１ンデンリ゛ロワタンクと
を結ぶ配管途中の電磁弁を開さ、必要量だり小型タンク
にＩＪＩ出りる」、う通路を設（）たこと。(2) Replace the non-condensable gas with liquid phase refrigerant and bring the system to if+
: After converting to water, a 17-ket liquid-phase refrigerant is used as a passage for discharging the liquid-phase refrigerant corresponding to the generated vapor space to the outside of the system. A passage is installed between the solenoid valve in the middle of the piping to discharge as much as necessary into the small tank. A passageway was established to allow the necessary amount of IJI to flow into a small tank.

〈３）　上ｉｉｊ　Ｍ！　１項記載のｆ１圧を検出Ｊる
手段として系内の温度を検出し、大気圧以下の飽和蒸気
記瓜を設定値とし、この設定値以下になるまで冷却系内
の密閉を保つようにしたこと。<3) Upper iij M! As a means of detecting the f1 pressure described in item 1, the temperature in the system was detected, the saturated steam temperature below atmospheric pressure was set as a set value, and the cooling system was kept sealed until the temperature fell below this set value. thing.

し発明の効果］ （１）　沸騰冷却系のり【コースト制御を確実に行なう
ことができる。Effects of the invention] (1) Boiling cooling system glue [Coast control can be performed reliably.

〈２）　コンアン１ノの放熱効率をＩυ人眼に発揮でき
る。(2) The heat dissipation efficiency of Conan 1 can be demonstrated to the human eye.

（３）　各１１−制御を１７１１単明瞭に？’Ｊ／Ｊ、
うことかできる。(3) Is each 11-control 1711 simple and clear? 'J/J,
I can do it.

（４）　系外タンクを小型にできる。(4) The external tank can be made smaller.

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

第１図（Ｊυ〔来装；ｒ￥の１７ｉ面図、第２図〜第４
図はこの発明の各制御状態を承り説明図で、第２図は空
気抽出、第３図は」−ルドスタ−１〜、第４・図は通常
運転の各状態を７１−どして承りもの、第一）１メ１〜
第１０図は名利ｔａｌ＋のフローチ１７−１−図で、第
５図はジエネラルノ１」−１第６図１．ａ　９Ｌ気１ノ
１出制御、第７図は二１−ルドスタ−１へ制御、第８図
は小ツトスタート制御、ａ）≦）図は通１へｉ運転制御
、第１０図はエンジン停止後の制御を示１ｂの、第１１
図は各制御に幻りる／ｌ　ｆ１６１の電磁弁の開閉状態
を承り図である。 図面に現４′）シた？３号の説明 １．２，３，４．２０・・・電磁弁（ｌ１ｔｌ閉手段）
５・・・供給ポンプ　（３・・・冷却ファン７・・・リ
ザーブタンク（系外の小型タンク）８．９．１０・・・
、１々而レンリ １１・・・温度セン９− １２．１３・・・冷ノＪ１ジ１ノケツ１−１４・・・コ
ンデンサ　１５・・・ロワタンク１６・・・供給ポンプ
の吸入側 １７．１８．１９・・・通路（配色） −ｒ　゛ セ（）、′問 第１図 Ｆ 第２図 第８図 第４図 第５図 ■闘匹正ｎ亙口 第６図 エンＶ ６カーｉ′ｌ′ｌ索３Ｔ転制御　第９　図エンド 第１Ｏ図 エ　レド 第１１図Figure 1 (17i side view of Jυ [Next;
The figures are explanatory diagrams for each control state of this invention. Figure 2 is for air extraction, Figure 3 is for "-Rudostar-1", and Figure 4 is for each state of normal operation. , 1st) 1me 1~
Figure 10 is the flowchart 17-1 of Nari tal+, and Figure 5 is Generalno 1''-1 Figure 6 1. a 9L air 1 no 1 output control, Fig. 7 shows control to 21-LDSTAR-1, Fig. 8 shows small start control, a)≦) shows i operation control to 1, Fig. 10 shows engine stop. The following control is shown in 1b, 11th
The figure shows the opening and closing states of the /l f161 solenoid valve that is involved in each control. Is there a current 4') in the drawing? Explanation of No. 3 1.2, 3, 4.20... Solenoid valve (l1tl closing means)
5... Supply pump (3... Cooling fan 7... Reserve tank (small tank outside the system) 8.9.10...
, 1 each... Temperature sensor 9- 12.13... Cold pipe J1 hole 1-14... Capacitor 15... Lower tank 16... Suction side of supply pump 17.18. 19...Aisle (color scheme) -r 'l cable 3T rotation control Fig. 9 End Fig. 1 O Fig. 11

Claims (1)

【特許請求の範囲】[Claims] 土ンジンスター１〜．ｊ、、後、系内に混入した不凝縮
気体を液相冷媒と置換し、運転中の大部分を液相冷媒と
該波相冷奴が沸騰にＪｚり相変化しｌご気相冷媒どによ
りｈ−シたされ！ご密閉冷ＩＪｊ系を形成づ−るように
（１４成りるープｊ、エンジン停止後、系外の小型タン
ク内の液相冷媒を系内の気相冷奴の凝縮に伴う負＋Ｘを
防止リベく吸引さＵるにうに構成した内燃機関のＳｌｊ
　Ｉ流冷７ＪＩ装置において、系外の小型タンクと畜１
ｆｆｌ冷ＩＪＪ系を形成υる系内とを接続する通路とし
て、該小型タンクと、シリンダブロック内冷却ジトケッ
１〜を結ぶ配管、コンデンリ′ロワタンクを結ぶ配管・
、ｄｉよσ、供給ポンプの吸入側を結ぶ配管を設置）る
ど共に、それぞれの配管に該通路の開閉手段を設けたこ
とを１４徴とりる内燃機関の沸騰冷却装置。Tojinjin Star 1~. After that, the non-condensable gas mixed into the system is replaced with a liquid phase refrigerant, and during most of the operation, the liquid phase refrigerant and the wave phase refrigerant boil and change phase, and then the vapor phase refrigerant etc. H-Shitase! In order to form a hermetically sealed cooling IJj system (14 loops, after the engine has stopped, remove the liquid phase refrigerant in the small tank outside the system to prevent the negative + Slj of an internal combustion engine configured to absorb air
I In the flow cooling 7JI equipment, small tank slaughtering outside the system 1
As passages connecting the ffl cooling IJJ system to the inside of the system, piping connecting the small tank and the cylinder block cooling unit 1~, piping connecting the condenser lower tank, etc.
, di, σ, and piping connecting the suction side of the supply pump), and each piping is provided with means for opening and closing the passage.