JPS601358A - Cylinder head for vertical shaft type internal-combustion engine - Google Patents

Cylinder head for vertical shaft type internal-combustion engine

Info

Publication number
JPS601358A
JPS601358A JP10929683A JP10929683A JPS601358A JP S601358 A JPS601358 A JP S601358A JP 10929683 A JP10929683 A JP 10929683A JP 10929683 A JP10929683 A JP 10929683A JP S601358 A JPS601358 A JP S601358A
Authority
JP
Japan
Prior art keywords
cylinder head
water jacket
combustion engine
exhaust
side cover
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
Application number
JP10929683A
Other languages
Japanese (ja)
Other versions
JPH0123663B2 (en
Inventor
Toshihiko Kawabe
河辺　利彦
Shiro Katsurada
桂田　史郎
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.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine 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 Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP10929683A priority Critical patent/JPS601358A/en
Publication of JPS601358A publication Critical patent/JPS601358A/en
Publication of JPH0123663B2 publication Critical patent/JPH0123663B2/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 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • 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
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/243—Cylinder heads and inlet or exhaust manifolds integrally cast together
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads 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
    • F02B75/00—Other engines
    • F02B75/007—Other engines having vertical crankshafts
    • 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 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Landscapes

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

Abstract

PURPOSE:To make the casting of a cylinder head so as to be performed in an easy manner, by covering a concave part used for a water jacket formed on the cylinder head, while installing a side cover capable of holding a thermostat, and making up a bypass passage inside this side cover. CONSTITUTION:In this internal-combustion engine, a crankshaft is set up in a vertical direction, and suction air A is led into each suction port 2 of a cylinder head 1, while exhaust gas E is discharged to an exhaust passage 4 from each exhaust port 3. And, each of water jackets 5 is formed in and around these suction and exhaust ports 2 and 3, in the above constitution, the left side of these water jackets 5 is cast in the state of a concave part being fully opened and then a side cover 6 is attached to this opening surface with bolts 7. And, inside this side cover 6, a bypass passage 10 interlocked from an upper thermostat outlet inside the water jacket 5 to the lower part of the cylinder head 1 is perfomed whereby cooling water W cooled inside the water jacket 5 is led into the exhaust passage 4 through the bypass passage 10.

Description

【発明の詳細な説明】 本発明は船外機等に使用される垂直軸型内燃機関のシリ
ンダヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cylinder head for a vertical shaft internal combustion engine used in an outboard motor or the like.

一般に水冷式の内燃機関のシリンダヘッドは鋳造品であ
り、その鋳造時に水ジャケットを形成するための中子は
かなり小さい部分が多く、それらを支持することが非常
に難かしい。Generally, the cylinder head of a water-cooled internal combustion engine is a cast product, and the cores used to form the water jacket during casting are often quite small, making it extremely difficult to support them.

また、クランク軸が垂直方向に配設されている船外機用
等に使用されている垂直軸型内燃機関では、シリンダヘ
ッドの水ジャケットへの冷却水は下から入れて上から抜
き出さねばならず、その上部の水ジヤケツト内にサーモ
スタットを挿設する必要があり、更に、水ジャケットで
冷却ずみの冷却水を排気通路から出た排気ガスに混合し
て排気ガスを冷却した後、船外機本体の下方に放出する
必要がある。In addition, in vertical-shaft internal combustion engines, such as those used in outboard motors, where the crankshaft is arranged vertically, cooling water must enter the water jacket of the cylinder head from the bottom and be extracted from the top. First, it is necessary to insert a thermostat into the water jacket at the top of the water jacket, and after cooling the exhaust gas by mixing the cooled water in the water jacket with the exhaust gas coming out of the exhaust passage, the outboard motor is cooled. It is necessary to release it downward from the main body.

そこで本発明は、上記のごとき垂直軸型内燃　゛機関に
おいて、水ジャケットを形成したシリンダヘッドの鋳造
を容易にすると共に、水ジャケットに挿設するサーモス
タットの保持を容易に行ないうると同時にサーモスタッ
トを通って出る水の通路を容易に持ち得るシリンダヘッ
ドを提供することを目的としてなされたものである。Therefore, the present invention facilitates the casting of a cylinder head in which a water jacket is formed in a vertical shaft type internal combustion engine as described above, and also facilitates the holding of a thermostat inserted in the water jacket. The purpose of this design is to provide a cylinder head that can easily have a passage for water to flow out.

即ち、本発明の垂直軸型内燃機関の７リングヘツドは、
クランク軸が垂直方向に配設された内燃機関において、
そのシリンダヘッドに形成された水ジヤケツト用の四部
を覆い、かつその水ジヤケツト内に挿設するサーモスタ
ットを保持可能な側ふだを該シリンダヘッドの側部に取
付けると共に、該側ふた内に該水ジヤケツト内からのバ
イパス路を形成することにより構成される。That is, the 7-ring head of the vertical axis internal combustion engine of the present invention is as follows:
In an internal combustion engine with a vertical crankshaft,
A side flap is attached to the side of the cylinder head that covers the four parts for the water jacket formed in the cylinder head and is capable of holding a thermostat inserted into the water jacket. It is constructed by forming a bypass path from inside the jacket.

以下回向を参照して本発明の一実施例を説明するが、第
１図は本発明の実施例における垂直軸型内燃機関のシリ
ンダヘッドの要部正断面図第２図は第１図の側ふた方向
から見た要部側面図である。An embodiment of the present invention will be described below with reference to the present invention. FIG. 1 is a front cross-sectional view of a main part of a cylinder head of a vertical shaft type internal combustion engine according to an embodiment of the present invention. FIG. 3 is a side view of the main parts as seen from the direction of the side lid.

まず、この内燃機関は図示されていないクランク軸が垂
直方向に配置され、従って／１６１及び／１６２で示す
各気筒のシリンダーが水平方向に配置された船外機用の
垂直軸型内燃機関であり、第１図に示すシリンダヘッド
１の７１６１及びΔ６２の各気筒の各吸気ポート２には
吸気Ａが導入され、噴射された燃料Ｆの燃焼後の排気ガ
スＥは各排気ポート６からシリンダヘッド１の下方の排
気通路４に排気されるようになっており、一方、これら
の吸気ポート２及び排気ポート６の周辺には水ジャケッ
ト５が形成されている。First, this internal combustion engine is a vertical shaft type internal combustion engine for outboard motors in which the crankshaft (not shown) is arranged vertically, and therefore the cylinders indicated by /161 and /162 are arranged horizontally. , intake air A is introduced into each intake port 2 of each cylinder 7161 and Δ62 of the cylinder head 1 shown in FIG. The air is discharged into an exhaust passage 4 below the intake port 2 and the exhaust port 6, and a water jacket 5 is formed around the intake port 2 and the exhaust port 6.

そこで、この７リンダヘツド１に形成された水ジャケッ
ト５の第１図に示す左側、即ち、側ふた６側は全面開口
した状態になっており、その開口面に、第２図で示すよ
うな大きな側ふた６を多数のボルト７で取付けてカバー
している。Therefore, the left side of the water jacket 5 formed in the 7-cylinder head 1 as shown in FIG. A side cover 6 is attached and covered with a large number of bolts 7.

即ち、シリンダヘッド１に形成した水ジャケット５は、
側ふた６側に開口しだ凹部の状態で鋳造されるので、そ
の鋳造時の中子の支持は容易である。That is, the water jacket 5 formed on the cylinder head 1 is
Since the core is cast with a recess opening on the side of the side lid 6, it is easy to support the core during casting.

また、水ジャケット５の上部に挿設するサーモスタット
８は、側ふた６を取付けることにより押えつけられるよ
うに保持することができる。Furthermore, the thermostat 8 inserted into the upper part of the water jacket 5 can be held in place by attaching the side cover 6.

更に、この側ふた６の内側には、水ジヤケツト５部分の
防食用の防食亜鉛９を水ジャケット５の上下に各１個取
付けている。Furthermore, on the inside of this side lid 6, one anticorrosive zinc 9 is attached to the top and bottom of the water jacket 5 to prevent corrosion of the water jacket 5 portion.

このような防食亜鉛９は、従来シリンダブロックまたは
シリンダヘッド１自身にねじ込みなどで取シ付けられて
おり、その取付位置によっては交換が非常に困難であっ
たが、本実施例のごとく側ふた６に取付けることにより
その交換は非常に簡単になる。側ふたが−・ラド全長に
わたっているので防食亜鉛を水位線の両端面につけるこ
とができ防食効果大である。Conventionally, such anti-corrosion zinc 9 was attached to the cylinder block or cylinder head 1 itself by screwing, and it was very difficult to replace depending on the attachment position. By installing it on the holder, its replacement becomes very easy. Since the side cover spans the entire length of the lid, anti-corrosion zinc can be applied to both end faces of the water line, resulting in a great anti-corrosion effect.

更に、この側ふだ６内には水ジヤケツト５内の上部サー
モスタット出口からシリンダヘッド１の下方に連通ずる
バイパス路１Ｕがあらかじめ形成されており、水ジヤケ
ツト５内で冷却後の冷却水Ｗはこのバイパス路１０から
その出口１１経由排気通路４に導出され、排気ガスＥと
充分混合されて排気ガスＥを冷却しながら外部に放出さ
れるので、船外機本体が排気ガスＥで過熱されるのを防
止できる。本案の場合、排気ポートがヘッド内に設けら
れており、排気ポートは特に船外機用の場合に於ては全
外周に水位線を設けて機関の過熱を防止する事が必要で
あるが、当該ふたがこれの水位線を形成している。これ
をふたでなくヘッド本体で形成すると鋳物が複雑となる
。Furthermore, a bypass passage 1U is formed in advance in this side flange 6, which communicates with the lower part of the cylinder head 1 from the upper thermostat outlet in the water jacket 5, and the cooling water W after being cooled in the water jacket 5 is passed through this bypass passage 1U. The exhaust gas is led out from the bypass passage 10 via its outlet 11 to the exhaust passage 4, is sufficiently mixed with the exhaust gas E, and is discharged to the outside while cooling the exhaust gas E. This prevents the outboard motor body from being overheated by the exhaust gas E. can be prevented. In the case of this proposal, the exhaust port is provided inside the head, and especially in the case of an outboard motor, it is necessary to provide a water level line around the entire outer circumference of the exhaust port to prevent the engine from overheating. The lid forms its water line. If this is formed from the head body instead of the lid, the casting will be complicated.

また、本実施例においては側ふた６をシリンダヘッド１
に取付けている第２図の１０本のボルト７のうち、／１
６１気筒と／Ｔ６２気筒の排気ポート６に位置する中央
の２本のボルト７のボルト穴に排気ポート６に貫通する
穴が設けられており、各気筒／ｆ６１及び／１６２の排
気温度を計測するときにはこのボルト７を抜き、先端に
２点鎖線で示す熱電対１２を組込んだボルトと交換する
ことにより、機関の仕組状態のまま各気筒／Ｉ６１及び
／１６２の排気温度をそのまま測定し、機関性能のチェ
ックが可能である。Furthermore, in this embodiment, the side cover 6 is attached to the cylinder head 1.
Of the 10 bolts 7 in Fig. 2 attached to the /1
Holes that penetrate the exhaust port 6 are provided in the bolt holes of the two central bolts 7 located in the exhaust port 6 of the 61st cylinder and /T62 cylinder, and the exhaust temperature of each cylinder /f61 and /162 is measured. Sometimes, by removing this bolt 7 and replacing it with a bolt that has a thermocouple 12 built in as shown by the two-dot chain line at the tip, the exhaust temperature of each cylinder /I61 and /162 can be measured while the engine is still in its working state, and the engine temperature can be measured as is. Performance can be checked.

従って、本発明のシリンダヘッドを垂直軸型内燃機関に
適用すれば、その水ジャケットを形成したシリンダヘッ
ドの鋳造を容易にすると共に、水ジャケットに挿設する
サーモスタットの保持を容易に行ないつるシリンダヘッ
ドを提供することができ、そのシリンダヘッドの鋳造コ
ストの低減をはかることができ、更に、水ジャケット内
の点検または保守が容易になるという利点がある。Therefore, if the cylinder head of the present invention is applied to a vertical axis type internal combustion engine, the cylinder head with the water jacket formed thereon can be easily cast, and the thermostat inserted into the water jacket can be easily held. This has the advantage that the casting cost of the cylinder head can be reduced, and inspection and maintenance of the inside of the water jacket becomes easy.

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

第１図は本発明の実施例における垂直軸型内燃機関の７
リングヘツドの要部正断面図、第２図は第１図Ｏ側ふた
方向から見た要部側面図である。 １・・・シリンダヘッド、５・・・水ジャケット、６・
・・側ふだ、７・・・ボルト、８・・・サーモスタット
、１０・・・バイパス路。 代理人　弁理士　小　川　信　− 弁理士　野　口　賢　照 弁理士　斎　下　和　彦FIG. 1 shows a vertical shaft type internal combustion engine according to an embodiment of the present invention.
FIG. 2 is a front sectional view of the main part of the ring head, and FIG. 2 is a side view of the main part seen from the O side lid direction of FIG. 1. 1... Cylinder head, 5... Water jacket, 6...
... Side flap, 7... Bolt, 8... Thermostat, 10... Bypass path. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

【特許請求の範囲】[Claims] クランク軸が垂直方向に配設された内燃機関において、
そのシリンダヘッド側方にほぼ全長にわたって形成され
た水ジヤケツト用の凹部を覆い、かつその水ジヤケツト
内に挿設するサーモスタットを保持可能な側ふたを該シ
リンダヘッドの側部にほぼシリンダヘッド全長にわたっ
て取付けると共に、該側ふた内に該水ジヤケツト内から
のバイパス路を形成したことを特徴とする垂直軸型内燃
機関のシリンダヘッド。In an internal combustion engine with a vertical crankshaft,
A side lid is attached to the side of the cylinder head over almost the entire length of the cylinder head, covering a recess for the water jacket formed over almost the entire length on the side of the cylinder head, and capable of holding a thermostat inserted into the water jacket. A cylinder head for a vertical shaft internal combustion engine, further comprising a bypass passage from inside the water jacket formed in the side cover.
JP10929683A 1983-06-20 1983-06-20 Cylinder head for vertical shaft type internal-combustion engine Granted JPS601358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10929683A JPS601358A (en) 1983-06-20 1983-06-20 Cylinder head for vertical shaft type internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10929683A JPS601358A (en) 1983-06-20 1983-06-20 Cylinder head for vertical shaft type internal-combustion engine

Publications (2)

Publication Number Publication Date
JPS601358A true JPS601358A (en) 1985-01-07
JPH0123663B2 JPH0123663B2 (en) 1989-05-08

Family

ID=14506577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10929683A Granted JPS601358A (en) 1983-06-20 1983-06-20 Cylinder head for vertical shaft type internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS601358A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491350A (en) * 1990-08-01 1992-03-24 Honda Motor Co Ltd Water-cooled engine and outboard motor mounted with the engine
WO1997027389A1 (en) * 1996-01-22 1997-07-31 Briggs & Stratton Corporation Engine cylinder head assembly having planar and cast components
EP1840351A2 (en) * 2006-03-29 2007-10-03 HONDA MOTOR CO., Ltd. Water-cooled internal combustion engine
WO2008026746A2 (en) * 2006-08-28 2008-03-06 Toyota Jidosha Kabushiki Kaisha Cooling water passage structure of cylinder head
FR2927665A1 (en) * 2008-02-15 2009-08-21 Peugeot Citroen Automobiles Sa EXHAUST MANIFOLD ARCHITECTURE INTEGRATED TO THE CYLINDER HEAD OF A MOTOR VEHICLE ENGINE
WO2021115448A1 (en) * 2019-12-13 2021-06-17 赛格威科技有限公司 Cylinder head for engine and engine having same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125638A (en) * 1974-08-22 1976-03-02 Outboard Marine Corp NAINENGATAENJIN

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125638A (en) * 1974-08-22 1976-03-02 Outboard Marine Corp NAINENGATAENJIN

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491350A (en) * 1990-08-01 1992-03-24 Honda Motor Co Ltd Water-cooled engine and outboard motor mounted with the engine
WO1997027389A1 (en) * 1996-01-22 1997-07-31 Briggs & Stratton Corporation Engine cylinder head assembly having planar and cast components
EP1840351A2 (en) * 2006-03-29 2007-10-03 HONDA MOTOR CO., Ltd. Water-cooled internal combustion engine
EP1840351A3 (en) * 2006-03-29 2007-12-19 HONDA MOTOR CO., Ltd. Water-cooled internal combustion engine
WO2008026746A2 (en) * 2006-08-28 2008-03-06 Toyota Jidosha Kabushiki Kaisha Cooling water passage structure of cylinder head
JP2008051076A (en) * 2006-08-28 2008-03-06 Toyota Motor Corp Cooling water passage structure of cylinder head
WO2008026746A3 (en) * 2006-08-28 2008-05-08 Toyota Motor Co Ltd Cooling water passage structure of cylinder head
KR101035443B1 (en) 2006-08-28 2011-05-18 도요타지도샤가부시키가이샤 Cooling water passage structure of cylinder head
US7980206B2 (en) 2006-08-28 2011-07-19 Toyota Jidosha Kabushiki Kaisha Cooling water passage structure of cylinder head
FR2927665A1 (en) * 2008-02-15 2009-08-21 Peugeot Citroen Automobiles Sa EXHAUST MANIFOLD ARCHITECTURE INTEGRATED TO THE CYLINDER HEAD OF A MOTOR VEHICLE ENGINE
EP2110536A1 (en) * 2008-02-15 2009-10-21 Peugeot Citroën Automobiles S.A. Exhaust manifold integrated in the cylinder head of an engine of a vehicle
WO2021115448A1 (en) * 2019-12-13 2021-06-17 赛格威科技有限公司 Cylinder head for engine and engine having same

Also Published As

Publication number Publication date
JPH0123663B2 (en) 1989-05-08

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