JPS641451Y2 - - Google Patents
Info
- Publication number
- JPS641451Y2 JPS641451Y2 JP6463583U JP6463583U JPS641451Y2 JP S641451 Y2 JPS641451 Y2 JP S641451Y2 JP 6463583 U JP6463583 U JP 6463583U JP 6463583 U JP6463583 U JP 6463583U JP S641451 Y2 JPS641451 Y2 JP S641451Y2
- Authority
- JP
- Japan
- Prior art keywords
- thermostat
- valve
- engine
- water
- engine body
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 238000001816 cooling Methods 0.000 claims description 21
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Temperature-Responsive Valves (AREA)
Description
【考案の詳細な説明】
本考案は、気筒列を車体の左右方向と平行に配
設したエンジンの冷却装置に関する。[Detailed Description of the Invention] The present invention relates to a cooling system for an engine in which cylinder rows are arranged parallel to the left-right direction of a vehicle body.
従来、この種装置として水ポンプ、エンジン本
体に設けられた水冷ジヤケツト、エンジン本体の
前方に配設されたラジエータおよびサーモスタツ
トを順次接続する冷却水循環回路と；ラジエータ
を迂回して水冷ジヤケツト、吸気マニホールドの
ライザ部およびサーモスタツトを順次接続するバ
イパス回路と；水冷ジヤケツト、ヒータおよびサ
ーモスタツトを順次接続する温水循環回路と；を
備え、サーモスタツトは冷却水循環回路を開閉す
る主サーモスタツト弁と、その弁の開および閉動
作に連動して閉および開動作しバイパス回路を開
閉するボトムバイパス弁とを有するものが知られ
ている。 Conventionally, this type of device includes a cooling water circulation circuit that sequentially connects a water pump, a water cooling jacket provided on the engine body, a radiator and a thermostat located in front of the engine body; and a water cooling jacket and intake manifold that bypass the radiator. a bypass circuit that sequentially connects the riser section and the thermostat; a hot water circulation circuit that sequentially connects the water cooling jacket, the heater, and the thermostat; the thermostat has a main thermostat valve that opens and closes the cooling water circulation circuit; A bottom bypass valve is known that has a bottom bypass valve that closes and opens in conjunction with the opening and closing operations of the bottom bypass valve to open and close a bypass circuit.
この場合、配管設計いかんによつては各部材間
の配管作業性が悪くなり、また管路抵抗が大きく
なつて冷却水のスムーズな流れが得られず、さら
にヒータおよびライザ部への温水の熱損失が高く
なるといつた不具合を発生する。 In this case, depending on the piping design, the piping workability between each member may deteriorate, the resistance of the piping may increase, making it difficult to obtain a smooth flow of cooling water, and the heat of the hot water flowing into the heater and riser section may deteriorate. When the loss becomes high, problems occur.
本考案は上記に鑑み、エンジン本体に対して水
ポンプ、サーモスタツトおよび吸気マニホールド
を特定位置に配設して配管作業性の向上を図り、
また熱損失および管路抵抗の減少を図ることがで
きるようにした前記エンジン冷却装置を提共する
ことを目的とする。 In view of the above, the present invention aims to improve piping workability by locating the water pump, thermostat, and intake manifold at specific positions on the engine body.
Another object of the present invention is to provide the engine cooling device which can reduce heat loss and pipe resistance.
以下、図面により本考案の一実施例について説
明すると、Ｅは多気筒、図示例では４気筒一列形
のエンジンを示し、そのエンジン本体１は気筒列
２を図示しない車体の左右方向に向けてその車体
に塔載され、そのエンジン本体１の前方にラジエ
ータ３が配設される。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. E indicates a multi-cylinder engine, in the example shown, a four-cylinder single-row engine, and the engine body 1 has a cylinder row 2 facing left and right of the vehicle body (not shown). The engine body 1 is mounted on a vehicle body, and a radiator 3 is disposed in front of the engine body 1.
エンジン本体１は気筒列２を囲繞する水冷ジヤ
ケツト４を有し、その入口５はエンジン本体１の
後部一側、第１図において後部左側に位置し、ま
た第１〜第３出口６1〜６3は右端側に位置する。 The engine body 1 has a water-cooled jacket 4 surrounding a cylinder row 2, the inlet 5 of which is located on one rear side of the engine body 1, the rear left side in FIG. 1, and the first to third outlets 61 to 6. 3 is located on the right side.
エンジン本体１の後部左側には水ポンプ７が配
設され、その吸込口８は右方に向けて開口し、ま
た吐出口９は水冷ジヤケツト４の入口５に連通し
ている。水ポンプ７のロータ１０と一体の回転軸
１１は、エンジンＥのクランク軸（図示せず）よ
りベルト伝動機構１２を介して駆動される。 A water pump 7 is disposed on the rear left side of the engine body 1, and its suction port 8 opens toward the right, and its discharge port 9 communicates with the inlet 5 of the water cooling jacket 4. A rotating shaft 11 integral with the rotor 10 of the water pump 7 is driven by a crankshaft (not shown) of an engine E via a belt transmission mechanism 12.
エンジン本体１の後部右側には、第１，第２図
に示すようにサーモスタツト１３のケーシング１
４が取付ボルト１５により固定され、また水ポン
プ７とサーモスタツト１３間の上方においてエン
ジン本体１の後部には、吸気マニホールド１６が
連結されている。 At the rear right side of the engine body 1, there is a casing 1 of the thermostat 13 as shown in Figures 1 and 2.
4 are fixed by mounting bolts 15, and an intake manifold 16 is connected to the rear part of the engine body 1 above between the water pump 7 and the thermostat 13.
サーモスタツト１３のケーシング１４は第１〜
第３入口１７1〜１７3と１つの出口１８を有し、
その出口１８は吸気マニホールド１６の下方にお
いて接続管１９を介して水ポンプ７の吸込口８に
接続される。エンジン本体１における水冷ジヤケ
ツト４の第１出口６1は接続管２０を介してラジ
エータ３の入口２１に、またラジエータ３の出口
２２は接続管２３を介してサーモスタツト１３の
第１入口１７1にそれぞれ接続される。かくして
水ポンプ７、水冷ジヤケツト４、ラジエータ３、
サーモスタツト１３および３本の接続管１９，２
０，２３は冷却水循環回路２４を構成する。 The casing 14 of the thermostat 13 is
having a third inlet 17 1 to 17 3 and one outlet 18;
Its outlet 18 is connected to the suction port 8 of the water pump 7 below the intake manifold 16 via a connecting pipe 19 . The first outlet 6 1 of the water cooling jacket 4 in the engine body 1 is connected to the inlet 21 of the radiator 3 via a connecting pipe 20 , and the outlet 22 of the radiator 3 is connected to the first inlet 17 1 of the thermostat 13 via a connecting pipe 23 . are connected to each other. Thus, the water pump 7, the water cooling jacket 4, the radiator 3,
Thermostat 13 and three connecting pipes 19, 2
0 and 23 constitute a cooling water circulation circuit 24.
水冷ジヤケツト４の第２出口６2は接続管２５
を介して吸気マニホールド１６におけるライザ部
２６の入口２７に、またその出口２８は接続管２
９を介してサーモスタツト１３の第２入口１７2
に接続され、かくして水冷ジヤケツト４の第２出
口６2、ライザ部２６、サーモスタツト１３の第
２入口１７2および２本の接続管２５，２９は、
ラジエータ３を迂回するバイパス回路３０を構成
する。 The second outlet 62 of the water cooling jacket 4 is connected to a connecting pipe 25
The inlet 27 of the riser portion 26 of the intake manifold 16 is connected to the connecting pipe 2
9 to the second inlet 17 2 of the thermostat 13
Thus, the second outlet 6 2 of the water-cooled jacket 4, the riser portion 26, the second inlet 17 2 of the thermostat 13 and the two connecting pipes 25, 29 are
A bypass circuit 30 is formed to bypass the radiator 3 .
水冷ジヤケツト４の第３出口６3は接続管３１
を介してエンジン本体１後方に配設されるヒータ
３２の入口３３に、またその出口３４は接続管３
５を介してサーモスタツト１３の第３入口１７3
にそれぞれ接続され、かくして水冷ジヤケツト４
の第３出口６3、ヒータ３３、サーモスタツト１
３入口１７3および２本の接続管３１，３５は温
水循環回路３６を構成する。 The third outlet 63 of the water cooling jacket 4 is the connecting pipe 31
The inlet 33 of the heater 32 provided at the rear of the engine body 1 is connected to the connecting pipe 3 through the
Third inlet 17 of thermostat 13 via 5 3
are respectively connected to the water cooling jackets 4, and thus the water cooling jackets 4
3rd outlet 6 3 , heater 33, thermostat 1
The third inlet 17 3 and the two connecting pipes 31 and 35 constitute a hot water circulation circuit 36 .
サーモスタツト１３の出口１８と、水ポンプ７
の吸込口８間を接続する接続管１９は金属よりな
り、その両端にはそれぞれ環状シール溝３７，３
８が塑性変形により形成され、各溝３７，３８に
嵌めた環状シール部材３９，４０を介して接続管
１９の両端部がサーモスタツト１３の出口１８お
よび水ポンプ７の吸込口８内にそれぞれ嵌入され
る。接続管１９のサーモスタツト１３側端部外周
面には半径方向に突出する回止め突起４１が設け
られており、その回止め突起４１はサーモスタツ
ト１３の出口１８端面より軸方向に突出する一対
の突起４２間に嵌入される。 Outlet 18 of thermostat 13 and water pump 7
A connecting pipe 19 connecting between the suction ports 8 is made of metal, and annular seal grooves 37 and 3 are provided at both ends of the connecting pipe 19, respectively.
8 is formed by plastic deformation, and both ends of the connecting pipe 19 are fitted into the outlet 18 of the thermostat 13 and the suction port 8 of the water pump 7 through annular seal members 39 and 40 fitted into the respective grooves 37 and 38, respectively. be done. A locking protrusion 41 is provided on the outer circumferential surface of the end of the connecting pipe 19 on the thermostat 13 side and protrudes in the radial direction. It is fitted between the protrusions 42.
サーモスタツト１３は従来公知のものであり、
ケーシング１４内に収容された主サーモスタツト
弁４３とボトムバイパス弁４４とを備えている。 The thermostat 13 is a conventionally known one,
It includes a main thermostatic valve 43 and a bottom bypass valve 44 housed within the casing 14.
その主サーモスタツト弁４３は第１入口１７1
と出口１８間に設けられた弁座４５と、その弁座
４５に対して接離する弁体４６と、その弁体４６
を閉じる方向に付勢する弁ばね４７とよりなり、
またボトムバイパス弁４４は第２入口１７2と出
口１８間に形成された弁座４８と、その弁座４８
に対して接離する弁体４９と、その弁体４９を閉
じる方向に付勢する弁ばね５０とよりなる。主サ
ーモスタツト弁４３の弁軸５１とボトムバイパス
弁４４の弁軸５２とは同心であり、両弁軸５１，
５２はワツクスを充填したワツクスケース５３の
両端部にそれぞれ設けられている。したがつてエ
ンジン始動後温水の温度が低いときにはワツクス
が収縮して主サーモスタツト弁４３が閉じると共
にボトムバイパス弁４４が開き、一方温水の温度
が高くなるとワツクスが膨脹して主サーモスタツ
ト弁４３が開くと共にボトムバイパス弁４４が閉
じるものである。 The main thermostatic valve 43 is the first inlet 17 1
a valve seat 45 provided between the valve seat 45 and the outlet 18; a valve body 46 that moves toward and away from the valve seat 45;
consists of a valve spring 47 that biases the valve in the closing direction;
The bottom bypass valve 44 also includes a valve seat 48 formed between the second inlet 172 and the outlet 18, and a valve seat 48 formed between the second inlet 172 and the outlet 18.
It consists of a valve body 49 that moves toward and away from the valve body, and a valve spring 50 that biases the valve body 49 in the closing direction. The valve shaft 51 of the main thermostatic valve 43 and the valve shaft 52 of the bottom bypass valve 44 are concentric, and both valve shafts 51,
Reference numerals 52 are provided at both ends of a wax case 53 filled with wax. Therefore, when the hot water temperature is low after the engine is started, the wax contracts and the main thermostat valve 43 closes, and the bottom bypass valve 44 opens.On the other hand, when the hot water temperature rises, the wax expands and the main thermostat valve 43 closes. When the bottom bypass valve 44 opens, the bottom bypass valve 44 closes.
次に、この実施例の作用について説明すると、
エンジンＥ始動後温水の温度が低いときにはサー
モスタツト１３におけるワツクスケース５３内の
ワツクスが収縮しているので、主サーモスタツト
弁４３が閉じると共にボトムバイパス弁４４が開
く。したがつて冷却水循環回路２４が閉じられ、
ラジエータ３には冷却水が流れないので、エンジ
ン本体１が冷却されることがなく暖機運転が促進
される。一方、バイパス回路３０が開かれ、吸気
マニホールド１６のライザ部２６には温水が供給
されるので燃料の霧化が促進される。この場合サ
ーモスタツト１３の作動状態にかかわらず温水循
環回路３６は常時開いており、ヒータ３２に温水
が供給されるので、暖房等は何等支障なく行われ
る。 Next, the operation of this embodiment will be explained.
When the temperature of the hot water is low after starting the engine E, the wax in the wax case 53 of the thermostat 13 is contracted, so the main thermostat valve 43 closes and the bottom bypass valve 44 opens. Therefore, the cooling water circulation circuit 24 is closed,
Since cooling water does not flow through the radiator 3, the engine body 1 is not cooled and warm-up operation is promoted. On the other hand, the bypass circuit 30 is opened and hot water is supplied to the riser section 26 of the intake manifold 16, so that atomization of the fuel is promoted. In this case, regardless of the operating state of the thermostat 13, the hot water circulation circuit 36 is always open and hot water is supplied to the heater 32, so that heating can be performed without any problem.
温水の温度が高くなりワツクスケース５３内の
ワツクスが膨脹すると、主サーモスタツト弁４３
が開くと共にボトムバイパス弁４４が閉じる。し
たがつて冷却水循環回路２４が開かれ、ラジエー
タ３に昇温した温水が供給されて放熱されるの
で、エンジン本体１が適温に制御される。一方、
バイパス回路３０が閉じられ、吸気マニホールド
１６への温水流量が減少するので、混合気は適温
に保持され、充填効率の低下が防止される。 When the temperature of the hot water becomes high and the wax in the wax case 53 expands, the main thermostat valve 43
opens, and the bottom bypass valve 44 closes. Therefore, the coolant circulation circuit 24 is opened, and heated water is supplied to the radiator 3 to radiate heat, so that the engine main body 1 is controlled at an appropriate temperature. on the other hand,
Since the bypass circuit 30 is closed and the flow rate of hot water to the intake manifold 16 is reduced, the air-fuel mixture is maintained at an appropriate temperature and a decrease in filling efficiency is prevented.
以上のように本考案によれば、水ポンプをエン
ジン本体の後部一側に配設し、またサーモスタツ
トをエンジン本体の後部他側に配設し、さらに吸
気マニホールドを、水ポンプとサーモスタツト間
の上方でエンジン本体の後部に連結したので、エ
ンジン本体の水冷ジヤケツトとラジエータ、吸気
マニホールドのライザ部およびサーモスタツトと
の接続に当りエンジン本体が、また水ポンプとサ
ーモスタツトとの接続に当り吸気マニホールドが
何等邪魔にならず、また水冷ジヤケツトと吸気マ
ニホールドのライザ部間および水冷ジヤケツトと
ヒータ間の接続管路を短縮することができ、した
がつて配管作業性を向上し、また熱損失および管
路抵抗の減少を図ることができる。 As described above, according to the present invention, the water pump is arranged on one rear side of the engine body, the thermostat is arranged on the other rear side of the engine body, and the intake manifold is arranged between the water pump and the thermostat. Since it is connected to the rear part of the engine body at the top, the engine body is connected to the water cooling jacket of the engine body, the radiator, the riser part of the intake manifold, and the thermostat, and the intake manifold is connected to the water pump and the thermostat. In addition, the connecting pipes between the water cooling jacket and the riser part of the intake manifold and between the water cooling jacket and the heater can be shortened, improving piping work efficiency and reducing heat loss and pipe lines. It is possible to reduce resistance.
図面は本考案の一実施例を示すもので、第１図
は装置全体の一部破断平面図、第２図はサーモス
タツト取付部の部分図、第３図は第１図−線
断面図である。
１…エンジン本体、２…気筒列、３…ラジエー
タ、４…水冷ジヤケツト、７…水ポンプ、１３…
サーモスタツト、１６…吸気マニホールド、２４
…冷却水循環回路、２６…ライザ部、３０…バイ
パス回路、３２……ヒータ、３６……温水循環
路、４３…主サーモスタツト弁、４４…ボトムバ
イパス弁。
The drawings show one embodiment of the present invention; Fig. 1 is a partially cutaway plan view of the entire device, Fig. 2 is a partial view of the thermostat mounting section, and Fig. 3 is a sectional view taken along the line of Fig. 1. be. 1...Engine body, 2...Cylinder row, 3...Radiator, 4...Water cooling jacket, 7...Water pump, 13...
Thermostat, 16...Intake manifold, 24
... Cooling water circulation circuit, 26 ... Riser section, 30 ... Bypass circuit, 32 ... Heater, 36 ... Hot water circulation path, 43 ... Main thermostat valve, 44 ... Bottom bypass valve.
Claims (1)
エンジン本体に設けられた水冷ジヤケツト、前記
エンジン本体の前方に配設されたラジエータおよ
びサーモスタツトを順次接続する冷却水循環回路
と；前記ラジエータを迂回して前記水冷ジヤケツ
ト、吸気マニホールドのライザ部および前記サー
モスタツトを順次接続するバイパス回路と；前記
水冷ジヤケツト、ヒータおよび前記サーモスタツ
トを順次接続する温水循環回路と；を備え、前記
サーモスタツトは前記冷却水循環回路を開閉する
主サーモスタツト弁と、該弁の開および閉動作に
連動して閉および開動作し前記バイパス回路を開
閉するボトムバイパス弁とを有するエンジン冷却
装置において、前記水ポンプを前記エンジン本体
の後部一側に配設し、また前記サーモスタツトを
前記エンジン本体の後部他側に配設し、さらに前
記吸気マニホールドを、前記水ポンプと前記サー
モスタツト間の上方で前記エンジン本体の後部に
連結したことを特徴とするエンジン冷却装置。 A cooling water circulation circuit that sequentially connects a water pump, a water cooling jacket provided on an engine body in which cylinder rows are arranged in the left and right direction of the vehicle body, a radiator and a thermostat arranged in front of the engine body; a bypass circuit that sequentially connects the water cooling jacket, the riser portion of the intake manifold, and the thermostat; and a hot water circulation circuit that sequentially connects the water cooling jacket, the heater, and the thermostat; In an engine cooling system having a main thermostat valve that opens and closes a circuit, and a bottom bypass valve that closes and opens in conjunction with the opening and closing operations of the valve and opens and closes the bypass circuit, the water pump is connected to the engine main body. The thermostat is arranged on the other rear side of the engine body, and the intake manifold is connected to the rear part of the engine body above the water pump and the thermostat. An engine cooling system characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6463583U JPS59170627U (en) | 1983-04-29 | 1983-04-29 | engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6463583U JPS59170627U (en) | 1983-04-29 | 1983-04-29 | engine cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59170627U JPS59170627U (en) | 1984-11-15 |
| JPS641451Y2 true JPS641451Y2 (en) | 1989-01-13 |
Family
ID=30194820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6463583U Granted JPS59170627U (en) | 1983-04-29 | 1983-04-29 | engine cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59170627U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330582Y2 (en) * | 1985-06-11 | 1991-06-27 | ||
| JPH0513944Y2 (en) * | 1986-04-25 | 1993-04-14 |
-
1983
- 1983-04-29 JP JP6463583U patent/JPS59170627U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59170627U (en) | 1984-11-15 |
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