JPH01167412A - V-type engine - Google Patents

V-type engine

Info

Publication number
JPH01167412A
JPH01167412A JP32346887A JP32346887A JPH01167412A JP H01167412 A JPH01167412 A JP H01167412A JP 32346887 A JP32346887 A JP 32346887A JP 32346887 A JP32346887 A JP 32346887A JP H01167412 A JPH01167412 A JP H01167412A
Authority
JP
Japan
Prior art keywords
intake
bank
belt
cylinder row
engine
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
JP32346887A
Other languages
Japanese (ja)
Inventor
Toshiyuki Kawauchi
川内 敏之
Junichi Okita
沖田 潤一
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP32346887A priority Critical patent/JPH01167412A/en
Publication of JPH01167412A publication Critical patent/JPH01167412A/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
    • F02B67/00Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18Multi-cylinder engines
    • F02B75/22Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06Endless member is a belt

Abstract

PURPOSE:To obtain the compact constitution of the engine and improve intake performance by extension-forming each intake collecting passage in the cylinder row direction and installing an idler pulley, shifted to the bank side close to each belt line. CONSTITUTION:Intake collecting passages 5 and 6 for supplying intake into the cylinders on the banks R and L are formed on the bank sides of the cylinder heads 2 and 3. The intake collecting passages 5 and 6 are installed in extension in the cylinder row direction so that the intake collecting passage 6 on the front side in the cylinder row direction and on the right bank R crosses with the plane including a belt line 32. The second idler pulley 34 set between the cam pulleys 28 and 29 on the both banks R and L is installed, shifted to the right bank R side so that a timing belt 31 set between the cam pulleys 28 and 29 does not interfere with the extension installation part 40 of the intake collecting passage 6. Therefore, the engine can be made compact, and the intake performance can be improved.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はV型エンジンに関し、特にエンジンのコンパク
ト化を図りつつ吸気性能を向上させるための対策に関す
る。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a V-type engine, and particularly to measures for improving intake performance while making the engine more compact.

従来、V型エンジンとして、例えば実開昭60−707
30号公報に開示されるように2つのバンクをシリンダ
列方向にずらして配し、バンク間パに各バンク毎に吸気
集合通路をそれぞれ設は該各吸気集合通路により各バン
クに吸気を供給するとともに、各バンク毎にその動弁系
部材を駆動するためのカム軸を配設し、シリンダ列方向
端部においてこのカム軸とクランク軸との間にタイミン
グベルトを巻き掛けてベルトラインを構成し、クランク
軸により多イミングベルトを介して各カム軸を駆動する
ようにしたものが知られている。また、このエンジンで
は両カム軸のカムプーリ問および各カム軸のカムプーリ
とクランク軸のクランクブーりとの間にベルトをガイド
するアイドラプーリを配設している。
Conventionally, as a V-type engine, for example, the Utility Model 60-707
As disclosed in Japanese Patent Application No. 30, two banks are arranged to be shifted in the cylinder row direction, and intake collecting passages are provided for each bank in the space between the banks, and intake air is supplied to each bank through the respective intake collecting passages. At the same time, a camshaft is provided for each bank to drive its valve train members, and a timing belt is wound between the camshaft and the crankshaft at the end in the cylinder row direction to form a belt line. It is known that each camshaft is driven by a crankshaft via a multi-timing belt. Further, in this engine, an idler pulley for guiding the belt is provided between the cam pulleys of both camshafts and between the cam pulley of each camshaft and the crankshaft of the crankshaft.

(発明が解決しようとする問題点) ところで、このようなエンジンで吸気性能の向上を図る
場合、吸気集合通路の長さを可及的に長くして吸気充填
効率の改善効果を低回転域まで拡大することが行われる
。その場合、吸気集合通路をバンク上方に延設すると自
動車に搭載した場合にボンネット高さが高くなるし、吸
気集合通路をトランスミッション側に延設するとトラン
スミッション等のレイアウトが困難になる。
(Problem to be solved by the invention) By the way, when trying to improve the intake performance in such an engine, it is necessary to make the length of the intake collecting passage as long as possible so that the effect of improving the intake air filling efficiency is extended to the low rotation range. Enlarging is done. In this case, extending the intake air passageway above the bank will increase the height of the bonnet when mounted on an automobile, and extending the air intake airflow passageway toward the transmission side will make layout of the transmission etc. difficult.

そこで、上記吸気集合通路をシリンダ列方向ベルトライ
ン側に延設することが考えられる。しかし、この場合、
充分な吸気性能向上効果を得るように延設すると、ベル
トライン寄りのバンクの吸気集合通路がタイミングベル
トと干渉するおそれがあり、この干渉を防止するにはベ
ルトラインをシリンダ列方向に吸気集合通路から離れる
ように設ける必要が生じ、エンジンのコンパクト化が図
れない。
Therefore, it is conceivable to extend the intake air collecting passage toward the belt line side in the cylinder row direction. But in this case,
If it is extended to obtain a sufficient intake performance improvement effect, there is a risk that the intake collecting passage in the bank near the belt line will interfere with the timing belt.To prevent this interference, move the belt line toward the cylinder row direction. It becomes necessary to provide the engine at a distance from the engine, making it impossible to make the engine more compact.

本発明はかかる点に鑑みてなされたものであり、その目
的とするところは、両バンクのカム軸のカムプーリ間の
ベルトをガイドするアイドラプーリを適切に配置して吸
気集合通路とベルトとの干渉を防止しながら吸気集合通
路の延設を可能とすることにある。
The present invention has been made in view of the above, and its purpose is to appropriately arrange the idler pulley that guides the belt between the cam pulleys of the camshafts of both banks to prevent interference between the intake passage and the belt. The purpose of the present invention is to make it possible to extend the intake passageway while preventing this.

(問題点を解決するための手段) 上記目的を達成するため、本発明では、両カム軸のカム
プーリ間のベルトをガイドするアイドラプーリを該ベル
トが上記延設部と干渉しないように上記ベルトライン寄
りのバンク側にずらすことである。
(Means for Solving the Problems) In order to achieve the above object, in the present invention, the idler pulley that guides the belt between the cam pulleys of both camshafts is moved along the belt line so that the belt does not interfere with the extending portion. This means moving it toward the nearest bank.

具体的に、本発明の講じた解決手段は、2つのバンクを
シリンダ列方向にずらして配しバンク間に各バンク毎に
吸気を供給する吸気集合通路をそれぞれ設けるとともに
シリンダ列方向端部に両バンクのカム軸を駆動するため
のベルトラインを設けたV型エンジンを前提とする。こ
れに対し、上記各吸気集合通路を、シリンダ列方向ベル
トライン側にかつベルトライン寄りのバンクの吸気集合
通路が該ベルトラインを含む面に交叉するようにシリン
ダ列方向に延設する。そして、上記両カム軸のカムプー
リ間のベルトをガイドするアイドラプーリを該ベルトが
上記延設部と干渉しないように上記ベルトライン寄りの
バンク側にずらして設ける構成としたものである。
Specifically, the solution taken by the present invention is to arrange two banks offset in the direction of the cylinder row, provide intake collecting passages for supplying intake air to each bank between the banks, and provide both banks at the ends in the direction of the cylinder row. A V-type engine with a belt line for driving a bank camshaft is assumed. On the other hand, each of the above-mentioned intake collecting passages is provided so as to extend in the direction of the cylinder row so that the intake collecting passage of the bank closer to the belt line intersects the plane including the belt line. Further, an idler pulley that guides the belt between the cam pulleys of both the camshafts is provided so as to be shifted toward the bank side closer to the belt line so that the belt does not interfere with the extending portion.

(作用) 上記の構成により、本発明では、各吸気集合通路を、シ
リンダ列方向ベルトライン側にかつベルトライン寄りの
バンクの吸気集合通路が該ベルトラインを含む面に交叉
するようにシリンダ列方向に延設するので、吸気集合通
路の長さが可及的に長くなって吸気充填効率の改善効果
を低回転域まで拡大でき吸気性能が向上する。
(Function) With the above configuration, in the present invention, each intake collecting passage is arranged on the belt line side in the cylinder row direction, and the intake collecting passage in the bank closer to the belt line intersects with the plane including the belt line. Since the length of the intake air collecting passage is extended as much as possible, the effect of improving the intake air filling efficiency can be extended to the low rotation range, and the intake performance is improved.

その場合、両カム軸のカムプーリ間のベルトをガイドす
るアイドラプーリを該ベルトが上記延設部と干渉しない
ように上記ベルトライン寄りのバンク側にずらして設け
たので、ベルトラインを吸気集合通路から離れるように
設けることなく吸気集合通路とベルトとの干渉を防止す
ることができ、エンジンがコンパクトになるとともにバ
ンク間に体裁良く吸気系が収まる。
In that case, the idler pulley that guides the belt between the cam pulleys of both camshafts was shifted to the bank side closer to the belt line so that the belt would not interfere with the extension, so the belt line was moved away from the intake collection passage. Interference between the intake passageway and the belt can be prevented without having to separate them, the engine becomes more compact, and the intake system fits neatly between the banks.

(実施例) 以下、本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.

第1図および第2図は本発明の実施例に係るDOHCタ
イプのV型6気筒エンジンを示す。これらの図において
、1はシリンダブロック、2,3は該シリンダブロック
1上に配設されたシリンダヘッドであって、このシリン
ダブロック1とシリンダヘッド2.3とにより左バンク
Lと右バンクRとに3つのシリンダ4. 4. 4がそ
れぞれ形成されている。このエンジンでは右バンクRの
シリンダ4,4.4の方が左バンクLのシリンダ4゜4
.4よりもシリンダ列前側(第2図の下側)にずらして
配されるように設けられている。
1 and 2 show a DOHC type V-type six-cylinder engine according to an embodiment of the present invention. In these figures, 1 is a cylinder block, 2 and 3 are cylinder heads disposed on the cylinder block 1, and the cylinder block 1 and cylinder head 2.3 form a left bank L and a right bank R. 3 cylinders 4. 4. 4 are formed respectively. In this engine, cylinders 4 and 4.4 in the right bank R are better than cylinders 4 and 4 in the left bank L.
.. It is provided so as to be shifted to the front side of the cylinder row (lower side in FIG. 2) than the cylinder row 4.

上記各シリンダヘッド2.3のバンク開側には各バンク
L、 Hのシリンダ4.4.4に吸気を供給する吸気集
合通路5,6がそれぞれ設けられている。該各吸気集合
通路5.6は一端が各バンクL、 Rのシリンダ4,4
.4に接続され、他端が集合されてシリンダ列方向前方
に向い、バンク間の前端部において反転してシリンダ列
方向後方に向い、バンク間の後端部においてサージタン
ク7に接続されている。そして、該サージタンクt ハ
エアクリーナ(図示せず)を介して大気に開放されてい
る。すなわち、上記各吸気集合通路5.6は通常の吸気
集合通路に比べてシリンダ列方向前側に延設されていて
、吸気集合通路5,6の長さ 、を可及的に長くして吸
気充填効率の改善効果を低回転域まで拡大し、吸気性能
を向上させるようにしている。また、各シリンダヘッド
2.3のバンク外側には各バンクL、 Rのシリンダ4
,4.4から排気を排出する排気集合通路8.9がそれ
ぞれ設けられている。尚、11.12はそれぞれ各シリ
ンダヘッド2.3上に配設されたシリンダへラドカバー
、13はオイルパンである。
On the bank open side of each cylinder head 2.3, intake passages 5, 6 are provided for supplying intake air to the cylinders 4.4.4 of each bank L, H, respectively. Each intake collecting passage 5.6 has one end connected to the cylinders 4, 4 of each bank L, R.
.. 4, the other end is gathered together and faces forward in the cylinder row direction, reversed at the front end between the banks and faced rearward in the cylinder row direction, and connected to the surge tank 7 at the rear end between the banks. The surge tank t is opened to the atmosphere via an air cleaner (not shown). That is, each of the above-mentioned intake collecting passages 5 and 6 is extended to the front side in the cylinder row direction compared to a normal intake collecting passage, and the length of the intake collecting passages 5 and 6 is made as long as possible to fill the intake air. The efficiency improvement effect extends to the low rotation range, improving intake performance. In addition, cylinders 4 of each bank L and R are located outside the bank of each cylinder head 2.3.
. Note that 11 and 12 are Rad covers for the cylinders respectively disposed on each cylinder head 2 and 3, and 13 is an oil pan.

また、上記シリンダブロック1にはクランク軸21が枢
支されている。さらに、各シリンダヘッド2.3にはシ
リンダ4,4,4への吸・排気を所定のタイミングで行
う吸気弁および排気弁(図示せず)が配設されており、
各シリンダヘッド2゜3上には該吸気弁および排気弁を
それぞれ駆動するためのカム軸22.23が枢支されて
いる。ここで、吸気用カム軸22はバンク開側に配され
ているとともに排気用カム軸23はバンク外側に配され
ている。そして、各バンクL、 R毎に吸気用カム軸2
2と排気用カム軸23とはギヤを介して互いに同期して
回転するようになされている。
Further, a crankshaft 21 is pivotally supported on the cylinder block 1. Further, each cylinder head 2.3 is provided with an intake valve and an exhaust valve (not shown) that perform intake and exhaust to and from the cylinders 4, 4, and 4 at predetermined timing.
A camshaft 22, 23 is pivotally supported on each cylinder head 2.3 for driving the intake valve and exhaust valve, respectively. Here, the intake camshaft 22 is arranged on the open side of the bank, and the exhaust camshaft 23 is arranged on the outside of the bank. Then, intake camshaft 2 is installed for each bank L and R.
2 and the exhaust camshaft 23 are configured to rotate in synchronization with each other via gears.

さらに、上記クランク軸21の前端にはクランクプーリ
27が、各バンクL、Rの吸気用カム軸22の前端には
カムプーリ28.29がそれぞれ取り付けられていると
ともに、該各プーリ27〜29間にはタイミングベルト
31が巻き掛けられてベルトライン32を構成しており
、クランク軸21によりタイミングベルト31を介して
各カム軸22.23を駆動するようにしている。該タイ
ミングベルト31は第1図で時計回りに回動していて、
左バンクL側が張り側に、右バンクR側が緩み側になっ
ている。
Furthermore, a crank pulley 27 is attached to the front end of the crankshaft 21, and cam pulleys 28 and 29 are attached to the front ends of the intake camshafts 22 of each bank L and R, and between the pulleys 27 to 29, A timing belt 31 is wound around to form a belt line 32, and each camshaft 22, 23 is driven by the crankshaft 21 via the timing belt 31. The timing belt 31 is rotating clockwise in FIG.
The left bank L side is on the tight side, and the right bank R side is on the loose side.

また、このエンジンにおいて各プーリ27〜29の間に
はタイミングベルト31をガイドする第1〜第3アイド
ラプーリ33〜35が該タイミングベルト31の外面に
当接するようにそれぞれ配設されている。さらに、シリ
ンダブロック1の右バンクR側には上記アイドラプーリ
33とカムプーリ29との間においてタイミングベルト
31をガイドする第4アイドラプーリ36が該タイミン
グベルト31の内面に当接するように配設されている。
Further, in this engine, first to third idler pulleys 33 to 35 that guide the timing belt 31 are respectively disposed between the pulleys 27 to 29 so as to abut against the outer surface of the timing belt 31. Further, on the right bank R side of the cylinder block 1, a fourth idler pulley 36 for guiding the timing belt 31 between the idler pulley 33 and the cam pulley 29 is arranged so as to come into contact with the inner surface of the timing belt 31. There is.

そして、このエンジンには上記ベルトライン32を囲む
ようにベルトカバー37が取り付けられている。
A belt cover 37 is attached to this engine so as to surround the belt line 32.

次に、上記各吸気集合通路51,6とベルトライン32
との位置関係について説明するに、ベルトライン寄りの
バンクつまり右バンクRの吸気集合通路6はその反転部
がベルトライン32を含む面に交叉するようにシリンダ
列方向前側に延設されているとともに、上記両バンクL
、 Hのカムプーリ28.29間にある第2アイドラプ
ーリ34はカムプーリ2B、29間のタイミングベルト
31が上記吸気集合通路6の延設部40と干渉しないよ
うに上記右バンクR側にずらして設けられている。
Next, each of the above-mentioned intake collecting passages 51 and 6 and the belt line 32
To explain the positional relationship with the belt line, the intake collecting passage 6 of the bank near the belt line, that is, the right bank R, is extended toward the front in the cylinder row direction so that its inverted portion intersects the plane including the belt line 32. , both banks L above
The second idler pulley 34 located between the cam pulleys 28 and 29 of cam pulleys 2B and 29 is shifted toward the right bank R side so that the timing belt 31 between the cam pulleys 2B and 29 does not interfere with the extending portion 40 of the intake collecting passage 6. It is being

したがって、上記実施例においては、各吸気集合通路5
.6を、シリンダ列方向前側にかつ右バンクRの吸気集
合通路6がベルトライン32を含む面に交叉するように
シリンダ列方向に延設したので、吸気集合通路5,6の
長さが可及的に長くなって握気充填□効率の改善効果を
低回転域まで拡大でき吸気性能を向上させることができ
る。
Therefore, in the above embodiment, each intake passage 5
.. 6 is provided on the front side in the cylinder row direction and extends in the cylinder row direction so that the intake collecting passage 6 of the right bank R intersects the plane including the belt line 32, so that the length of the intake collecting passages 5 and 6 can be increased. This makes it possible to extend the improvement effect of gripping air filling efficiency to the low rotation range and improve intake performance.

15、 その場合、両バンクL、  Rのカムプーリ2
8゜29間にある第2アイドラプーリ34をタイミング
ベルト31が上記延設部40と干渉しないように右バン
クR側にずらして設けたので、ベルトライン32を吸気
集合通路5,6から離れるように設けることなく吸気集
合通路6とタイミングベルト31との干渉を防止するこ
とができ、吸気系ひいてはエンジンがコンパクトになる
とともにバンク間に体裁良く吸気系を収めることができ
る。
15. In that case, cam pulley 2 of both banks L and R
Since the second idler pulley 34 located between 8° and 29° is shifted toward the right bank R side so that the timing belt 31 does not interfere with the extension portion 40, the belt line 32 is moved away from the intake collective passages 5 and 6. Interference between the intake collecting passage 6 and the timing belt 31 can be prevented without having to provide the intake passage 6 and the timing belt 31, the intake system and the engine can be made compact, and the intake system can be neatly housed between the banks.

また、ベルトライン寄りにある右バンクRにタイミング
ベルト31の緩み側が配されるようにしかつこの緩み側
に第1アイドラプーリ33に加えて第4アイドラプーリ
36を配したので、ベルト31の振れ量の多い緩み側に
おいてブーり間のベルト長さを可及的に短くして、ベル
ト31の共振周波数をエンジンの実用回転数以上に設定
でき、ベルト31の振動を防止することができる。
In addition, since the slack side of the timing belt 31 is arranged in the right bank R near the belt line, and the fourth idler pulley 36 is arranged in addition to the first idler pulley 33 on this slack side, the amount of deflection of the belt 31 is By shortening the length of the belt between the bobbins as much as possible on the slack side where there is a large amount of slack, the resonance frequency of the belt 31 can be set to be higher than the practical rotational speed of the engine, and vibration of the belt 31 can be prevented.

さらに、バンク開側に配した吸気用カム軸22をベルト
ライン32で駆動し、この吸気用カム軸22でバンク外
側に配した排気用カム軸23をギヤ駆動するようにした
ので、直径の大きなカムプ−リ間果、29をエンジン内
方に収めてエンジンをコンパクトにすることができる。
Furthermore, the intake camshaft 22 placed on the open side of the bank is driven by the belt line 32, and the intake camshaft 22 gear-drives the exhaust camshaft 23 placed on the outside of the bank. The engine can be made compact by housing the cam pulley 29 inside the engine.

(発明の効果) 以上説明したように、本発明のV型エンジンによれば、
各バンクの吸気集合通路を、シリンダ列方向ベルトライ
ン側にかつベルトライン寄りのバンクの吸気集合通路が
該ベルトラインを含む面に交叉するようにシリンダ列方
向に延設し、両バンクのカム軸のカムプーリ間における
ベルトをガイドするアイドラプーリを該ベルトが上記延
設部と干渉しないように上記ベルトライン寄りのバンク
側にずらして設けたので、エンジンをコンパクトにしか
つバンク間に体裁良く吸気系を収めながら吸気性能を向
上させることができる。
(Effects of the Invention) As explained above, according to the V-type engine of the present invention,
The intake collecting passage of each bank is extended in the direction of the cylinder row so that it is on the belt line side in the cylinder row direction and the intake collecting passage of the bank closer to the belt line intersects the plane including the belt line. The idler pulley that guides the belt between the cam pulleys is shifted to the bank side closer to the belt line to prevent the belt from interfering with the extension, making the engine more compact and allowing the intake system to be neatly arranged between the banks. It is possible to improve intake performance while accommodating the air intake.

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

図面は本発明の実施例を例示し、第1図はエンジンの正
面図、第2図は同平面図である。 L、R・・・バンク、4・・・シリンダ、5,6・・・
吸気集合通路、22.23・・・カム軸、28.29・
・・カムプーリ、31・・・タイミングベルト、32・
・・ベルトライン、33〜36・・・アイドラプーリ、
40・・・延設部。
The drawings illustrate an embodiment of the present invention, and FIG. 1 is a front view of the engine, and FIG. 2 is a plan view thereof. L, R... Bank, 4... Cylinder, 5, 6...
Intake collection passage, 22.23...Camshaft, 28.29.
...Cam pulley, 31...Timing belt, 32.
...Belt line, 33-36...Idler pulley,
40... Extension part.

Claims (1)

【特許請求の範囲】[Claims] (1)2つのバンクをシリンダ列方向にずらして配しバ
ンク間に各バンク毎に吸気を供給する吸気集合通路をそ
れぞれ設けるとともにシリンダ列方向端部に両バンクの
カム軸を駆動するためのベルトラインを設けたV型エン
ジンにおいて、上記各吸気集合通路を、シリンダ列方向
ベルトライン側にかつベルトライン寄りのバンクの吸気
集合通路が該ベルトラインを含む面に交叉するようにシ
リンダ列方向に延設するとともに、上記両カム軸のカム
プーリ間のベルトをガイドするアイドラプーリを該ベル
トが上記延設部と干渉しないように上記ベルトライン寄
りのバンク側にずらして設けたことを特徴とするV型エ
ンジン。
(1) Two banks are arranged offset in the direction of the cylinder row, and an intake passageway is provided between the banks to supply intake air to each bank, and a belt is installed at the end in the direction of the cylinder row to drive the camshafts of both banks. In a V-type engine provided with a line, each of the above-mentioned intake collecting passages is extended in the cylinder row direction so that the intake collecting passage of the bank closer to the belt line intersects with the belt line side in the cylinder row direction. and an idler pulley that guides the belt between the cam pulleys of both camshafts is provided shifted toward the bank side closer to the belt line so that the belt does not interfere with the extension part. engine.
JP32346887A 1987-12-21 1987-12-21 V-type engine Pending JPH01167412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32346887A JPH01167412A (en) 1987-12-21 1987-12-21 V-type engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32346887A JPH01167412A (en) 1987-12-21 1987-12-21 V-type engine

Publications (1)

Publication Number Publication Date
JPH01167412A true JPH01167412A (en) 1989-07-03

Family

ID=18155024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32346887A Pending JPH01167412A (en) 1987-12-21 1987-12-21 V-type engine

Country Status (1)

Country Link
JP (1) JPH01167412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015041133A1 (en) * 2013-09-17 2015-03-26 Ntn株式会社 Chain transmission device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182444A (en) * 1985-02-07 1986-08-15 Mazda Motor Corp V-type engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182444A (en) * 1985-02-07 1986-08-15 Mazda Motor Corp V-type engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015041133A1 (en) * 2013-09-17 2015-03-26 Ntn株式会社 Chain transmission device
JP2015059577A (en) * 2013-09-17 2015-03-30 Ntn株式会社 Chain transmission device
CN105518341A (en) * 2013-09-17 2016-04-20 Ntn株式会社 Chain transmission device
US9915325B2 (en) 2013-09-17 2018-03-13 Ntn Corporation Chain transmission device

Similar Documents

Publication Publication Date Title
KR890000250B1 (en) Valve driving means for v-type engine of vehicle
JP4895021B2 (en) Engine mount structure with variable valve timing mechanism
US5085199A (en) V-type engine equipped with a supercharging device
JP3184438B2 (en) Internal combustion engine
JPH02215934A (en) V-engine
JPS62248829A (en) Structure of cylinder head of v-engine
JPH0333408A (en) Cam shaft bearing structure of dohc engine
JPH0932575A (en) Internal combustion engine
JP2000104561A (en) Outboard motor
JPH0480201B2 (en)
JPS62237028A (en) Cylinder head cover structure of v-type engine
KR950003168B1 (en) Water pumping apparatus for an internal combustion engine
JPH01167412A (en) V-type engine
JP2604397B2 (en) V-type engine
JP2741078B2 (en) Camshaft drive for V-type water-cooled engine
JP2755981B2 (en) V-type engine
JP3730065B2 (en) OHC V-type 2-cylinder engine
JP2726422B2 (en) V-type engine intake system
JPS6067705A (en) Cam shaft drive unit in double overhead cam shaft engine
JPH04228810A (en) Valve driving device of v-engine for vehicle
JPH0348052A (en) Cam chain guide device for internal combustion engine
JP3075737B2 (en) Intake system for multi-cylinder engine
JPH0229202Y2 (en)
JP2748271B2 (en) V-type engine camshaft drive
JP2829526B2 (en) Engine unit for vehicle