JPS6219570B2 - - Google Patents

Info

Publication number
JPS6219570B2
JPS6219570B2 JP56148192A JP14819281A JPS6219570B2 JP S6219570 B2 JPS6219570 B2 JP S6219570B2 JP 56148192 A JP56148192 A JP 56148192A JP 14819281 A JP14819281 A JP 14819281A JP S6219570 B2 JPS6219570 B2 JP S6219570B2
Authority
JP
Japan
Prior art keywords
cooling water
engine
engine blocks
cylinder
passages
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
Application number
JP56148192A
Other languages
Japanese (ja)
Other versions
JPS5851245A (en
Inventor
Masaharu Tsuboi
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP14819281A priority Critical patent/JPS5851245A/en
Publication of JPS5851245A publication Critical patent/JPS5851245A/en
Publication of JPS6219570B2 publication Critical patent/JPS6219570B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

【発明の詳細な説明】 本発明はシリンダブロツク上にシリンダヘツド
を重合連結した２つのエンジンブロツクを互いに
Ｖ型に配置してなるＶ型多気筒内燃機関に形成さ
れる冷却水通路に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling water passage formed in a V-type multi-cylinder internal combustion engine in which two engine blocks, each having a cylinder head superimposed on the cylinder block, are arranged in a V-shape. .

一般に前記機関の２つのエンジンブロツクより
なる本体は、鋳造後、種々の機械加工を施して形
成されるが、前記本体は複雑な形状をしているば
かりでなく機械加工個所が多岐にわたるので前記
鋳造および機械加工をできるだけ簡素化するよう
な構造にすることがコストダウンを図る上できわ
めて重要である。 Generally, the main body of the engine, which consists of two engine blocks, is formed by various machining processes after casting. In order to reduce costs, it is extremely important to create a structure that simplifies machining as much as possible.

そこで本発明は、２つのエンジンブロツクに形
成される冷却水通路を、鋳造および機械加工が容
易に行えるような構造にしてコストダウンに寄与
できるようにすることを主な目的とするものであ
る。 Therefore, the main object of the present invention is to provide a structure in which the cooling water passages formed in the two engine blocks can be easily cast and machined, thereby contributing to cost reduction.

以下、図面により本発明の実施例について説明
する。 Embodiments of the present invention will be described below with reference to the drawings.

第１図において、自動二輪車の車体フレームＦ
には水冷式Ｖ型多気筒内燃機関Ｅが横向き（その
クランク軸１が車体フレームＦの縦方向と直交す
る方向）に搭載されており、この内燃機関Ｅは車
体フレームＦの前方に傾斜する第１のエンジンブ
ロツクB1と車体フレームＦの後方に傾斜する第
２のエンジンブロツクB2と、それら両エンジン
ブロツクB1，B2の下部に連設されてクランクケ
ースとミツシヨンケースとを一体化したパワーユ
ニツトケース２とを有し、第１、第２のエンジン
ブロツクB1，B2間には側面よりみてＶ字状空間
Ｃが形成される 第１、第２のエンジンブロツクB1，B2は通常
のようにシリンダブロツク３上にシリンダヘツド
４を複数本のスタツドボルト５，５…によつて一
体に結合して構成されている。 In Figure 1, the motorcycle body frame F
A water-cooled V-type multi-cylinder internal combustion engine E is mounted horizontally (with its crankshaft 1 perpendicular to the longitudinal direction of the vehicle body frame F). The first engine block B 1 and the second engine block B 2 tilting toward the rear of the vehicle body frame F are connected to the lower part of both engine blocks B 1 and B 2 to integrate the crank case and the transmission case. A V-shaped space C is formed between the first and second engine blocks B 1 and B 2 when viewed from the side. 2 is constructed by integrally connecting a cylinder head 4 onto a cylinder block 3 with a plurality of stud bolts 5, 5, . . . as usual.

各エンジンブロツクB1，B2は、それぞれその
クランク軸１方向中央部に、動弁カム駆動機構６
を収容したカムチヤンバ７が配備されるとともに
それを挾んでその左右にシリンダ８ａ，８ｂがそ
れぞれ並列して形成されている。 Each of the engine blocks B 1 and B 2 has a valve cam drive mechanism 6 disposed at the center in one direction of the crankshaft.
A cam chamber 7 containing a cam chamber 7 is provided, and cylinders 8a and 8b are formed in parallel on both sides of the cam chamber 7, respectively.

前記パワーユニツトケース２の一側面には、ク
ランク軸１によつて駆動される発電機１０が、さ
らにその後方に同じくクランク軸１によつて駆動
される冷却水ポンプ１１が配設される。また車体
フレームＦのダウンチユーブには前記機関の冷却
用ラジエタ１２が支持されており、このラジエタ
１２と前記冷却水ポンプ１１とは冷却水路を以て
連絡されている。 A generator 10 driven by the crankshaft 1 is disposed on one side of the power unit case 2, and a cooling water pump 11 also driven by the crankshaft 1 is disposed behind the generator 10. Further, a radiator 12 for cooling the engine is supported on a down tube of the vehicle body frame F, and the radiator 12 and the cooling water pump 11 are connected through a cooling water channel.

次にこの冷却水路の構成を説明すると、冷却水
ポンプ１１の吸込口１３および吐出口１４には、
それぞれ吸込管１５および吐出管１６が接続さ
れ、吸込管１５は発電機１０の下面外周を巻込ん
だ後、車体フレームＦのダウンチユーブに沿つて
前方へのびその開口端が前記ラジエタ１２の出口
１７に接続され、また前記吐出管１６も発電機１
０の下面外周を巻込んでその開口端が第１、第２
のエンジンブロツクB1，B2間のＶ字状空間Ｃの
谷部に形成される、冷却水の一方の受渡し溜部１
９ａ（後に詳述）に連通される。 Next, to explain the configuration of this cooling water channel, the suction port 13 and the discharge port 14 of the cooling water pump 11 include:
A suction pipe 15 and a discharge pipe 16 are connected to each other, and after the suction pipe 15 wraps around the outer circumference of the lower surface of the generator 10, it extends forward along the down tube of the vehicle body frame F, and its open end is connected to the outlet 17 of the radiator 12. The discharge pipe 16 is also connected to the generator 1.
0, and its open end is the first and second
One of the cooling water delivery reservoirs 1 is formed in the valley of the V-shaped space C between the engine blocks B 1 and B 2 .
9a (described in detail later).

第２，４図に示すように第１、第２のエンジン
ブロツクB1，B2間のＶ字状空間Ｃの谷部には、
相対向するシリンダ８ａ，８ａおよび８ｂ，８ｂ
間において２つの冷却水の受渡し溜部１９ａ，１
９ｂが形成され、これらの受渡し溜部１９ａ，１
９ｂは、分配管２０を以て互いに連通されてい
る。各受渡し溜部１９ａの両側には第１、第２の
エンジンブロツクB1，B2のシリンダ８ａ，８ａ
あるいは８ｂ，８ｂに向う２本の入口通路２１，
２２が連通され、これらの入口通路２１，２２は
シリンダ８ａ，８ａあるいは８ｂ，８ｂの外周を
囲繞する水ジヤケツト２３，２３の底部に連通さ
れている。 As shown in Figs. 2 and 4, in the valley of the V-shaped space C between the first and second engine blocks B1 and B2 ,
Opposing cylinders 8a, 8a and 8b, 8b
Between the two cooling water delivery reservoirs 19a, 1
9b is formed, and these delivery reservoir parts 19a, 1
9b are communicated with each other via a distribution pipe 20. On both sides of each delivery reservoir 19a are cylinders 8a, 8a of the first and second engine blocks B1 , B2.
Or two inlet passages 21 towards 8b, 8b,
These inlet passages 21, 22 communicate with the bottoms of water jackets 23, 23 surrounding the outer circumferences of the cylinders 8a, 8a or 8b, 8b.

而して第３図に示すように前記一方の入口通路
２１の中心軸線l1−l1は、それに連通しない対向
側のシリンダ８ａ，８ｂの中心軸線L2−L2と平
行であり、同じく他方の入口通路２２の中心軸線
l2−l2はそれに連通しない対向側のシリンダ８
ａ，８ｂの中心軸線L1−L1と平行である。した
がつて、第１、第２のエンジンブロツクB1，B2
の鋳造あるいは機械加工等を行う場合に、一方の
シリンダ８ａ，８ｂと他方の入口通路２２および
他方のシリンダ８ａ，８ｂと一方の入口通路２１
の型抜き方向あるいは加工工具の送り方向が一致
してエンジンブロツクB1，B2の鋳造、および機
械加工が容易になる。 As shown in FIG. 3, the central axis l1 - l1 of one of the inlet passages 21 is parallel to the central axes L2 - L2 of the opposite cylinders 8a, 8b that do not communicate therewith; Center axis of the other inlet passage 22
l 2 −l 2 is the cylinder 8 on the opposite side that does not communicate with it
It is parallel to the central axis line L1 - L1 of a and 8b. Therefore, the first and second engine blocks B 1 and B 2
When performing casting or machining, etc., one cylinder 8a, 8b and the other inlet passage 22, and the other cylinder 8a, 8b and one inlet passage 21
Since the die cutting direction or the feeding direction of the processing tool coincides, casting and machining of the engine blocks B 1 and B 2 are facilitated.

第３図に示すようにシリンダ８ａ，８ｂを囲繞
する水ジヤケツト２３は、シリンダ８ａ，８ｂの
燃焼室側よりその縦方向の中間部までのびていて
その中を循環する冷却水はシリンダ８ａ，８ｂの
被加熱部を効果的に冷却できるようになつてお
り、また各水ジヤケツト２３の一部は、前記入口
通路２１あるいは２２に向つてシリンダ８ａ，８
ｂの底部まで深くのびていてそこに分配部２４が
形成され、この分配部２４は、入口通路２１，２
２よりも幅広に形成されて該通路２１，２２に連
通されている。而して各水ジヤケツト２３は、前
記分配部２４を形成することにより、シリンダ８
ａ，８ｂの底部において入口通路２１，２２と連
通することができ、入口通路２１，２２からの冷
却水は前記分配部２４に一旦流入し、そこより十
分の容量の冷却水を水ジヤケツト２３内の左右に
分流供給することができ、水ジヤケツト２３内で
は必要容量の冷却水を円滑に均等に流動させるこ
とが可能である。 As shown in FIG. 3, a water jacket 23 surrounding the cylinders 8a, 8b extends from the combustion chamber side of the cylinders 8a, 8b to a vertically intermediate portion thereof, and the cooling water circulating therein is supplied to the cylinders 8a, 8b. A portion of each water jacket 23 is connected to the cylinder 8a, 8 toward the inlet passage 21 or 22.
b, and a distribution section 24 is formed therein, and this distribution section 24 is connected to the inlet passages 21, 2.
It is formed wider than the passages 21 and 22 and communicates with the passages 21 and 22. Thus, each water jacket 23 is connected to the cylinder 8 by forming the distribution section 24.
A, 8b can communicate with the inlet passages 21, 22 at the bottom, and the cooling water from the inlet passages 21, 22 once flows into the distribution section 24, from which a sufficient amount of cooling water is transferred into the water jacket 23. The required amount of cooling water can be supplied to the left and right sides of the water jacket 23, so that the necessary amount of cooling water can flow smoothly and evenly within the water jacket 23.

水ジヤケツト２３の流出口２５，２５…はエン
ジンブロツクB1，B2のシリンダヘツド４，４の
相対向する側面に開口しており、それらの流出口
２５，２５…は導水管２６，２７および可撓性の
ホース２８，２９および温度弁３０を介して前記
ラジエタ１２の入口１８に連通されている。 The outflow ports 25, 25... of the water jacket 23 are opened at opposite sides of the cylinder heads 4, 4 of the engine blocks B1 , B2 , and these outflow ports 25, 25... are connected to the water conduit pipes 26, 27 and It communicates with the inlet 18 of the radiator 12 via flexible hoses 28, 29 and a temperature valve 30.

内燃機関の運転により冷却水ポンプ１１が駆動
されると、該ポンプ１１からの加圧冷却水は吐出
管１６より冷却水の一方の受渡し溜部１９ａに至
り、そこより冷却水の一部は直接入口通路２１，
２２を通つてエンジンブロツクB1，B2の相対向
するシリンダ８ａ，８ａ周りの水ジヤケツト２３
内に入り、また受渡し溜部１９ａ内の残りの冷却
水は分配管２０を通つて他方の受渡し溜部１９ａ
に流入し、そこよりエンジンブロツクB1，B2の
相対向する他方のシリンダ８ａ，８ｂ周りの水ジ
ヤケツト２３内に入つて、エンジンブロツク
B1，B2の加熱部を冷却した後、流出口２５，２
５…、導水管２６，２７、ホース２８，２９およ
び温度弁３０を通つてラジエタ１２内に流入す
る。そして該ラジエタ１２により冷却された冷却
水は吸込管１５を通つて冷却水ポンプ１１に吸込
まれる。 When the cooling water pump 11 is driven by the operation of the internal combustion engine, the pressurized cooling water from the pump 11 reaches one delivery reservoir 19a of the cooling water through the discharge pipe 16, and a portion of the cooling water is directly supplied from there. Entrance passage 21,
Water jacket 23 around opposing cylinders 8a, 8a of engine blocks B 1 , B 2 through 22
The remaining cooling water in the delivery reservoir 19a passes through the distribution pipe 20 to the other delivery reservoir 19a.
The water flows into the water jacket 23 around the other opposing cylinders 8a and 8b of the engine blocks B1 and B2 , and flows into the engine block.
After cooling the heating parts of B 1 and B 2 , the outlet ports 25 and 2
5..., flows into the radiator 12 through the water conduit pipes 26, 27, hoses 28, 29, and temperature valve 30. The cooling water cooled by the radiator 12 is sucked into the cooling water pump 11 through the suction pipe 15.

以上のように本発明によれば、２つのエンジン
ブロツク間に形成されるＶ字状空間の谷部に、冷
却水ポンプに連通される、冷却水の受渡し溜部を
形成し、この受渡し溜部を、２つのエンジンブロ
ツクに形成した水ジヤケツトの入口通路に連通
し、各入口通路の中心軸線を、該通路が冷却水を
供給しない対向側のエンジンブロツクのシリンダ
の中心軸線と平行になるようにしたので、エンジ
ンブロツクの鋳造時には、一方のシリンダブロツ
クのシリンダと他方のシリンダブロツクの前記入
口通路との型抜き方向が一致して同時成形が可能
になるばかりでなくそれらの加工工具などによる
加工方向も一致して同時加工が可能となり、製造
コストの大幅なコストダウンを図ることができ
る。 As described above, according to the present invention, a cooling water delivery reservoir portion that is communicated with the cooling water pump is formed in the valley of the V-shaped space formed between two engine blocks. are connected to inlet passages of water jackets formed in the two engine blocks, and the central axis of each inlet passage is parallel to the central axis of the cylinder of the opposite engine block to which cooling water is not supplied. Therefore, when casting the engine block, not only can the cylinders of one cylinder block and the inlet passage of the other cylinder block be molded in the same direction, making simultaneous molding possible, but also the direction of machining by the machining tools, etc. This makes it possible to perform simultaneous processing at the same time, resulting in a significant reduction in manufacturing costs.

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

第１図は本発明装置を備えた内燃機関を搭載し
た自動二輪車の側面図、第２図は前記内燃機関の
平面図、第３図はエンジンブロツクの拡大縦断面
図、第４図は第３図Ｚ方向矢視図である。 B1，B2……第１、第２のエンジンブロツク、
Ｃ……Ｖ字状空間、l1−l1，l2−l2……入口通路の
中心軸線、L1−L1，L2−L2……シリンダの中心
軸線、３……シリンダブロツク、４……シリンダ
ヘツド、１１……冷却水ポンプ、１９ａ，１９ｂ
……受渡し溜部、２１，２２……入口通路、２３
……水ジヤケツト。 FIG. 1 is a side view of a motorcycle equipped with an internal combustion engine equipped with the device of the present invention, FIG. 2 is a plan view of the internal combustion engine, FIG. It is a Z direction arrow view. B 1 , B 2 ...first and second engine blocks,
C...V-shaped space, l1 - l1 , l2- l2 ...center axis of inlet passage, L1 -L1 , L2 - L2 ...center axis of cylinder, 3...cylinder block , 4... Cylinder head, 11... Cooling water pump, 19a, 19b
...Delivery reservoir, 21, 22...Inlet passage, 23
...Water jacket.

Claims (1)

【特許請求の範囲】[Claims] １ シリンダブロツク３上にシリンダヘツド４を
重合連結した２つのエンジンブロツクB1，B2を
互いにＶ型に配置してなるＶ型多気筒内燃機関に
おいて、前記２つのエンジンブロツクB1，B2間
に形成されるＶ字状空間Ｃの谷部に、冷却水ポン
プ１１に連通される、冷却水の受渡し溜部１９
ａ，１９ｂを形成し、この受渡し溜部１９ａ，１
９ｂを、前記２つのエンジンブロツクB1，B2に
形成した水ジヤケツト２３の入口通路２１，２２
に連通し、各入口通路２１，２２の中心軸線l1−
l1，l2−l2を該通路２１，２２が冷却水を供給し
ない対向側のエンジンブロツクB2，B1のシリン
ダ８ａ，８ｂの中心線L2−L2，L1−L1と平行に
なるようにしたＶ型多気筒内燃機関の冷却水通
路。1 In a V-type multi-cylinder internal combustion engine in which two engine blocks B 1 and B 2 in which a cylinder head 4 is superimposed and connected on a cylinder block 3 are arranged in a V-shape, there is a gap between the two engine blocks B 1 and B 2 . A cooling water delivery reservoir 19 is connected to the cooling water pump 11 in the valley of the V-shaped space C formed in the
a, 19b, and this delivery reservoir part 19a, 1
9b are the inlet passages 21, 22 of the water jackets 23 formed in the two engine blocks B1 , B2 .
The center axis l 1 − of each inlet passage 21, 22 communicates with
l 1 , l 2 -l 2 with the center lines L 2 -L 2 , L 1 -L 1 of the cylinders 8a, 8b of the engine blocks B 2 , B 1 on the opposite side to which the passages 21 , 22 do not supply cooling water . The parallel cooling water passages of a V-type multi-cylinder internal combustion engine.
JP14819281A 1981-09-19 1981-09-19 Cooling water path for v-type multi-cylinder internal- combustion engine Granted JPS5851245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14819281A JPS5851245A (en) 1981-09-19 1981-09-19 Cooling water path for v-type multi-cylinder internal- combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14819281A JPS5851245A (en) 1981-09-19 1981-09-19 Cooling water path for v-type multi-cylinder internal- combustion engine

Publications (2)

Publication Number Publication Date
JPS5851245A JPS5851245A (en) 1983-03-25
JPS6219570B2 true JPS6219570B2 (en) 1987-04-30

Family

ID=15447306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14819281A Granted JPS5851245A (en) 1981-09-19 1981-09-19 Cooling water path for v-type multi-cylinder internal- combustion engine

Country Status (1)

Country Link
JP (1) JPS5851245A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569719A (en) * 1978-11-21 1980-05-26 Yamaha Motor Co Ltd Water cooling system for engine of motor cycle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569719A (en) * 1978-11-21 1980-05-26 Yamaha Motor Co Ltd Water cooling system for engine of motor cycle

Also Published As

Publication number Publication date
JPS5851245A (en) 1983-03-25

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