JPH07102980A - Intake device for v-type engine - Google Patents
Intake device for v-type engineInfo
- Publication number
- JPH07102980A JPH07102980A JP26800193A JP26800193A JPH07102980A JP H07102980 A JPH07102980 A JP H07102980A JP 26800193 A JP26800193 A JP 26800193A JP 26800193 A JP26800193 A JP 26800193A JP H07102980 A JPH07102980 A JP H07102980A
- Authority
- JP
- Japan
- Prior art keywords
- intake
- type engine
- pipe
- switching valve
- intake pipe
- 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
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Characterised By The Charging Evacuation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明はＶ型エンジンの吸気装
置に係り、特に構造の簡素化を果たし得て、トルク特性
の向上を果たし得て、また、組付性の向上を果たし得
て、出力の向上及びコストの低減を果たし得るＶ型エン
ジンの吸気装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake system for a V-type engine, and in particular, can simplify the structure, improve torque characteristics, and improve assemblability. The present invention relates to an intake device for a V-type engine that can improve output and reduce cost.
【０００２】[0002]
【従来の技術】エンジンには、シリンダバンクの配列形
式によって、シリンダバンクを直列状態に配列した直列
エンジンや、シリンダバンクをＶ字形状に配列したＶ型
エンジン等がある。Ｖ型エンジンは、略Ｖ字型のシリン
ダブロックに夫々各側シリンダヘッドを載置し、これら
各側シリンダヘッドに各側ヘッドカバーを載置してＶ字
形状に各側シリンダバンクを配列している。2. Description of the Related Art Engines include a serial engine in which cylinder banks are arranged in series, a V-type engine in which cylinder banks are arranged in a V shape, and the like, depending on the arrangement of cylinder banks. In a V-type engine, each side cylinder head is mounted on a substantially V-shaped cylinder block, and each side head cover is mounted on each side cylinder head to arrange each side cylinder bank in a V shape. .
【０００３】このようなＶ型エンジンとしては、図１０
に示すものがある。図において、３０２はＶ型エンジン
である。Ｖ型エンジン３０２は、略Ｖ字型のシリンダブ
ロック３０４に夫々各側シリンダヘッド３０６Ａ・３０
６Ｂを載置し、これら各側シリンダヘッド３０６Ａ・３
０６Ｂに各側ヘッドカバー３０８Ａ・３０８Ｂを載置し
てＶ字形状に各側シリンダバンク３１０Ａ・３１０Ｂを
配列している。各側シリンダバンク３１０Ａ・３１０Ｂ
間には、空間部３１２を形成している。FIG. 10 shows such a V-type engine.
There is one shown in. In the figure, 302 is a V-type engine. The V-type engine 302 includes a substantially V-shaped cylinder block 304 and a cylinder head 306A, 30 on each side.
6B is mounted, and cylinder heads 306A, 3 on each side are mounted.
The head covers 308A and 308B on the respective sides are mounted on 06B, and the cylinder banks 310A and 310B on the respective sides are arranged in a V shape. Each side cylinder bank 310A ・ 310B
A space 312 is formed between them.
【０００４】また、前記Ｖ型エンジン３０２は、シリン
ダブロック３０４の下部にベアリングキャップ３１４を
取付けてクランク軸３１６を軸支し、ベアリングキャッ
プ３１４の下部にオイルパン（図示せず）を取付けてい
る。In the V-type engine 302, a bearing cap 314 is attached to a lower portion of a cylinder block 304 to support a crankshaft 316, and an oil pan (not shown) is attached to a lower portion of the bearing cap 314.
【０００５】前記シリンダブロック３０４には、夫々各
側シリンダ３１８Ａ・３１８Ｂを設け、各側ピストン
（図示せず）を摺動可能に内蔵している。前記各側シリ
ンダヘッド３０６Ａ・３０６Ｂには、各側シリンダ３１
８Ａ・３１８Ｂに一致させて各側燃焼室用窪所３２０Ａ
・３２０Ｂを設け、各側燃焼室用窪所３２０Ａ・３２０
Ｂに連通する各側吸気ポート３２２Ａ・３２２Ｂ及び各
側排気ポート３２４Ａ・３２４Ｂを設けている。The cylinder block 304 is provided with cylinders 318A and 318B on each side, and pistons (not shown) on each side are slidably incorporated therein. Each of the cylinder heads 306A and 306B has a cylinder 31 on each side.
8A and 318B corresponding to each side combustion chamber recess 320A
・ 320B is provided, and each side combustion chamber recess 320A ・ 320
Each side intake port 322A, 322B and each side exhaust port 324A, 324B communicating with B are provided.
【０００６】前記各側シリンダヘッド３０６Ａ・３０６
Ｂには、各側吸気ポート３２２Ａ・３２２Ｂ及び各側排
気ポート３２４Ａ・３２４Ｂを夫々開閉する各側吸気弁
３２６Ａ・３２６Ｂ及び各側排気弁３２８Ａ・３２８Ｂ
を設け、各側吸気弁３２６Ａ・３２６Ｂ及び各側排気弁
３２８Ａ・３２８Ｂを開閉駆動する各側吸気カム軸３３
０Ａ・３３０Ｂ及び各側排気カム軸３３２Ａ・３３２Ｂ
を軸支している。Cylinder heads 306A and 306 on each side
B includes intake valves 326A and 326B and exhaust valves 328A and 328B that open and close the intake ports 322A and 322B and exhaust ports 324A and 324B, respectively.
And an intake cam shaft 33 on each side for opening and closing the intake valves 326A and 326B on each side and the exhaust valves 328A and 328B on each side.
0A / 330B and exhaust cam shafts 332A / 332B on each side
Is pivotally supported.
【０００７】前記Ｖ型エンジン３０２は、各側シリンダ
ヘッド３０６Ａ・３０６Ｂの各側ヘッドカバー３０８Ａ
・３０８Ｂ上方に、各側サージタンク３３４Ａ・３３４
Ｂを配設している。各側サージタンク３３４Ａ・３３４
Ｂは、各側タンク通路３３６Ａ・３３６Ｂを設け、上流
側を図示しない各側吸気ダクトによりスロットルボディ
を介してエアクリーナに連絡されている。The V-type engine 302 includes a head cover 308A on each side of the cylinder heads 306A and 306B on each side.
・ Surge tanks 334A and 334 on each side above 308B
B is installed. Each side surge tank 334A ・ 334
B is provided with tank passages 336A and 336B on each side, and the upstream side is connected to the air cleaner via a throttle body by an intake duct on each side (not shown).
【０００８】前記各側サージタンク３３４Ａ・３３４Ｂ
には、各側吸気マニホルド３３８Ａ・３３８Ｂの各側吸
気管３４０Ａ・３４０Ｂの一端側が連絡されている。各
側吸気管３４０Ａ・３４０Ｂは、途中を空間部３１２の
中央付近において湾曲反転し、他端側を夫々各側シリン
ダヘッド３０６Ａ・３０６Ｂに取付けている。各側吸気
管３４０Ａ・３４０Ｂには、一端側を前記各側タンク通
路３３６Ａ・３３６Ｂに連通されるとともに他端側を前
記各側吸気ポート３２２Ａ・３２２Ｂに連通される各側
吸気通路３４２Ａ・３４２Ｂを設けている。Each side surge tank 334A / 334B
Is connected to one end side of each side intake pipe 340A, 340B of each side intake manifold 338A, 338B. The intake pipes 340A and 340B on the respective sides are curved and inverted halfway in the vicinity of the center of the space 312, and the other ends are attached to the cylinder heads 306A and 306B on the respective sides. Each side intake pipe 340A, 340B has a respective side intake passage 342A, 342B having one end communicating with each side tank passage 336A, 336B and the other end communicating with each side intake port 322A, 322B. It is provided.
【０００９】前記各側シリンダヘッド３０６Ａ・３０６
Ｂには、空間部３１２側に各側ヘッド部取付フランジ３
４４Ａ・３４４Ｂを設けている。各側ヘッド部取付フラ
ンジ３４４Ａ・３４４Ｂには、前記各側吸気ポート３２
２Ａ・３２２Ｂの上流側を開口して設けている。また、
前記各側吸気マニホルド３３８Ａ・３３８Ｂの各側吸気
管３４０Ａ・３４０Ｂには、前記各側ヘッド部取付フラ
ンジ３４４Ａ・３４４Ｂに取付けられる各側吸気管部取
付フランジ３４６Ａ・３４６Ｂを設けている。Cylinder heads 306A and 306 on each side
In B, the head portion mounting flange 3 on each side is attached to the space portion 312 side.
44A and 344B are provided. The head side mounting flanges 344A and 344B are provided with the intake ports 32 on the respective sides.
The upstream side of 2A / 322B is opened and provided. Also,
Each side intake pipe 340A, 340B of each side intake manifold 338A, 338B is provided with each side intake pipe portion mounting flange 346A, 346B attached to each side head portion mounting flange 344A, 344B.
【００１０】また、このＶ型エンジン３０２は、各側シ
リンダ３１８Ａ・３１８Ｂに夫々燃料を噴射する各側燃
料噴射弁３４８Ａ・３４８Ｂを備えるとともに、各側燃
料噴射弁３４８Ａ・３４８Ｂに燃料を分配する各側デリ
バリパイプ３５０Ａ・３５０Ｂを備えている。Further, the V-type engine 302 is provided with fuel injection valves 348A and 348B on each side for injecting fuel into the cylinders 318A and 318B on each side, and distributes fuel to the fuel injection valves 348A and 348B on each side. It is equipped with side delivery pipes 350A and 350B.
【００１１】各側燃料噴射弁３４８Ａ・３４８Ｂは、各
側吸気管３４０Ａ・３４０Ｂの各側吸気管部取付フラン
ジ３４６Ａ・３４６Ｂに設けた各側噴射弁取付部３５２
Ａ・３５２Ｂに、各側シリンダ３１８Ａ・３１８Ｂ方向
に指向させて取付けられる。各側デリバリパイプ３５０
Ａ・３５０Ｂは、各側吸気マニホルド３３８Ａ・３３８
Ｂの各側吸気管３４０Ａ・３４０Ｂに設けた各側パイプ
取付部３５４Ａ・３５４Ｂに取付けられ、各側燃料噴射
弁３４８Ａ・３４８Ｂに夫々連絡される。The fuel injection valves 348A and 348B on the respective sides are attached to respective side injection valve mounting portions 352 provided on the respective side intake pipe portion mounting flanges 346A and 346B of the respective side intake pipes 340A and 340B.
The cylinders 318A and 318B on each side are attached to the A / 352B so as to be oriented. Delivery pipe 350 on each side
A ・ 350B is for each side intake manifold 338A ・ 338
It is attached to each side pipe attachment portion 354A, 354B provided in each side intake pipe 340A, 340B of B and is connected to each side fuel injection valve 348A, 348B, respectively.
【００１２】このようなＶ型エンジンの吸気装置として
は、実開昭６１−５３５２８号公報、特開昭６２−９９
６２５号公報、特開昭６３−１１１２２５号公報に開示
されるものがある。As an intake device for such a V-type engine, Japanese Utility Model Laid-Open No. 61-53528 and JP-A-62-99 are known.
625 and Japanese Patent Laid-Open No. 63-111225.
【００１３】実開昭６１−５３５２８号公報に開示され
る吸気装置は、Ｖ型エンジンの各側シリンダに対して夫
々各側サージタンクを設け、各側サージタンクの中間部
位を連絡管により連絡し、各側サージタンクのいずれか
一方に前記連絡管の延設方向に指向させてスロットルボ
ディを設けたものである。In the intake system disclosed in Japanese Utility Model Laid-Open No. 61-53528, a surge tank for each side is provided for each cylinder of the V-type engine, and the intermediate portion of the surge tank for each side is connected by a connecting pipe. A throttle body is provided in one of the surge tanks on each side so as to be oriented in the extending direction of the connecting pipe.
【００１４】特開昭６２−９９６２５号公報に開示され
る吸気装置は、Ｖ型エンジンの各気筒を吸気行程が連続
しない気筒郡に分け、各気筒群に夫々連通する独立吸気
通路を集合部において集合するとともにこれら各気筒群
の集合部の上流側を共通吸気通路において集合した吸気
装置において、前記独立吸気通路を相互に連通する連通
部を設け、各独立吸気通路の連通部への各分岐部にＶ型
エンジンの高負荷時の設定回転数以下で閉じ、設定回転
数以上で開く制御弁を設けたものである。In the intake device disclosed in Japanese Patent Laid-Open No. 62-99625, each cylinder of a V-type engine is divided into groups of cylinders whose intake strokes are not continuous, and an independent intake passage communicating with each cylinder group is provided at a collecting portion. In an intake device that collects and collects the upstream side of the collecting portion of each cylinder group in a common intake passage, a communication portion that communicates the independent intake passages with each other is provided, and each branch portion to the communication portion of each independent intake passage. In addition, a control valve is provided which is closed below a set speed when the V-type engine is under a high load and is opened above a set speed.
【００１５】特開昭６３−１１１２２５号公報に開示さ
れる吸気装置は、Ｖ型エンジンのクランク軸方向に相互
にオフセットされた各側シリンダバンクの各気筒間の吸
気行程が互いに隣合わないように設定し、各側シリンダ
バンクの各気筒を各側分岐吸気管によりシリンダバンク
間の空間部に配設した各側集合管に夫々連通し、各側集
合管を空間部から延出するとともに各側集合管同士を前
記空間部近傍において連通する共鳴過給用圧力反転部を
設け、この圧力反転部をクランク軸方向において遠い側
のシリンダバンクが存在する側へオフセットされた位置
に配設したものである。The intake device disclosed in Japanese Patent Laid-Open No. 63-111225 is designed so that the intake strokes between the cylinders of each side cylinder bank, which are mutually offset in the crankshaft direction of the V-type engine, are not adjacent to each other. Each side cylinder bank of each side is connected to each side collecting pipe arranged in the space between the cylinder banks by each side branch intake pipe, and each side collecting pipe extends from the space and each side A resonance supercharging pressure reversal portion that communicates the collecting pipes with each other in the vicinity of the space is provided, and the pressure reversal portion is arranged at a position offset to the side where the cylinder bank on the far side in the crankshaft direction exists. is there.
【００１６】[0016]
【発明が解決しようとする課題】ところで、図１０に示
すＶ型エンジン３０２においては、各側吸気管３４０Ａ
・３４０Ｂの管長により出力特性が決定される。したが
って、所定運転域において要求されるトルクが得られる
ように各側吸気管３４０Ａ・３４０Ｂの管長を設定する
と、前記所定運転域以外の運転域において十分なトルク
を得られない問題がある。By the way, in the V-type engine 302 shown in FIG. 10, each side intake pipe 340A is provided.
-The output characteristics are determined by the tube length of 340B. Therefore, if the pipe lengths of the intake pipes 340A and 340B on each side are set so that the required torque is obtained in the predetermined operating range, there is a problem that sufficient torque cannot be obtained in the operating range other than the predetermined operating range.
【００１７】例えば、吸気慣性の圧力波を利用して充填
効率を高め、高速域において高出力が得られるように各
側吸気管３４０Ａ・３４０Ｂの管長を設定すると、低・
中速域において大きなトルクが得られないという問題が
ある。一方、低・中速域において大きなトルクが得られ
るように各側吸気管３４０Ａ・３４０Ｂの管長を設定す
ると、高速域において大きなトルクが得られないという
問題がある。For example, if the pipe lengths of the intake pipes 340A and 340B on each side are set so that the charging efficiency is increased by utilizing the pressure wave of the intake inertia and a high output is obtained in the high speed region, a low
There is a problem that a large torque cannot be obtained in the medium speed range. On the other hand, if the pipe lengths of the intake pipes 340A and 340B on each side are set so that a large torque is obtained in the low / medium speed range, there is a problem that a large torque cannot be obtained in the high speed range.
【００１８】このため、前記各公報に開示されるよう
に、各側サージタンクの中間部位を連絡管により連絡し
たものや、また、各気筒に連通する独立吸気通路を相互
に連通する連通部を設け、この連通部への各分岐部にＶ
型エンジンの高負荷時の設定回転数以下で閉じ、設定回
転数以上で開く制御弁を設けたものや、さらに、各側シ
リンダバンクの各気筒に各側分岐吸気管により連通され
る各側集合管同士を空間部近傍において連通する共鳴過
給用圧力反転部を設けたもの等がある。For this reason, as disclosed in the above-mentioned publications, the one in which the intermediate portion of each side surge tank is connected by a connecting pipe, and the communicating portion for communicating the independent intake passage communicating with each cylinder are provided. It is provided with V at each branch to this communication part.
Type engine with a control valve that closes below the set speed when the engine is under high load, and opens above the set speed, and also on each side that is connected to each cylinder of each side cylinder bank by each side branch intake pipe For example, there is one in which a resonance supercharging pressure reversal portion is provided that connects the tubes to each other near the space.
【００１９】しかし、前記各公報に開示される吸気装置
は、十分なトルク特性の向上を果たし得ず、また、構造
が複雑であり、コストの上昇を招く不都合ある。However, the intake device disclosed in each of the above publications cannot sufficiently improve the torque characteristic, and has a complicated structure, which causes an increase in cost.
【００２０】また、前記図１０に示すＶ型エンジン３０
２は、各側シリンダバンク３１０Ａ・３１０Ｂ間の空間
部３１２内に位置されて、各側燃料噴射弁３４８Ａ・３
４８Ｂ及び各側デリバリパイプ３５０Ａ・３５０Ｂを取
付けている。Further, the V-type engine 30 shown in FIG.
2 is located in the space 312 between the cylinder banks 310A and 310B on each side, and the fuel injection valves 348A and 3 on each side are arranged.
48B and delivery pipes 350A and 350B on each side are attached.
【００２１】ところが、各側燃料噴射弁３４８Ａ・３４
８Ｂ及び各側デリバリパイプ３５０Ａ・３５０Ｂは、各
側シリンダバンク３１０Ａ・３１０Ｂ間の空間部３１２
内の、各側吸気マニホルド３３８Ａ・３３８Ｂの各側吸
気管３４０Ａ・３４０Ｂに取付けられることにより、組
付性が悪いという不都合がある。However, each side fuel injection valve 348A ・ 34
8B and the delivery pipes 350A and 350B on each side are the space portions 312 between the cylinder banks 310A and 310B on each side.
Since it is attached to the intake pipes 340A and 340B of the intake manifolds 338A and 338B, the assembling performance is poor.
【００２２】また、各側デリバリパイプ３５０Ａ・３５
０Ｂをシリンダブロック３０４に取付ける場合は、シリ
ンダブロック３０４上の各側吸気管３４０Ａ・３４０Ｂ
に囲まれた狭い空間に各側パイプ取付部を設けなければ
ならない不都合があり、この各側パイプ取付部の形状に
より各側吸気管３４０Ａ・３４０Ｂの形状に制約を受
け、充填効率を向上すべき形状に形成し得ず、出力の向
上を果たし得ない不都合がある。The delivery pipes 350A and 35 on each side are also provided.
0B is attached to the cylinder block 304, the intake pipes 340A and 340B on each side of the cylinder block 304
There is an inconvenience that each side pipe mounting portion must be provided in a narrow space surrounded by, and the shape of each side pipe mounting portion restricts the shape of each side intake pipe 340A, 340B to improve the filling efficiency. There is an inconvenience that it cannot be formed into a shape and the output cannot be improved.
【００２３】[0023]
【課題を解決するための手段】このような不都合を解消
するために、この発明は、Ｖ型エンジンの各側シリンダ
ヘッドの上方に夫々各側サージタンクを配設し、これら
各側サージタンクに一端側を連絡されるとともに途中を
夫々反対側の各側シリンダヘッド近傍において湾曲反転
されて他端側を夫々各側シリンダヘッドに取付けられる
各側吸気マニホルドの各側一次吸気管を設け、これら各
側吸気マニホルドの各側一次吸気管の途中を短縮して連
絡する各側吸気マニホルドの各側二次吸気管を設け、こ
れら各側吸気マニホルドの各側二次吸気管を前記Ｖ型エ
ンジンのクランク軸軸線方向に指向させて直線的に集合
して配列して設け、前記直線的に集合して配列された各
側二次吸気管の各側二次吸気通路に各側切換弁を設け、
これら各側切換弁を前記Ｖ型エンジンの運転状態に応じ
て開閉駆動する単一の切換弁駆動機構を設けたことを特
徴とする。SUMMARY OF THE INVENTION In order to solve such inconvenience, the present invention provides a surge tank on each side above a cylinder head on each side of a V-type engine. A primary intake pipe for each side of each intake manifold is provided, which is connected to one end side and is curved and inverted in the vicinity of each side cylinder head on the opposite side, and the other end side is attached to each side cylinder head. Each side secondary intake pipe of each side intake manifold which shortens and communicates with each side primary intake pipe of each side intake manifold is provided, and each side secondary intake pipe of each side intake manifold is connected to the crank of the V-type engine. Axis is provided by arranging in a straight line gathering in the direction of the axial line, and each side switching valve is provided in each side secondary intake passage of each side secondary intake pipe arranged in a line.
It is characterized in that a single switching valve drive mechanism is provided for opening and closing each of these side switching valves according to the operating state of the V-type engine.
【００２４】また、この発明は、Ｖ型エンジンの各側シ
リンダヘッドの上方に夫々各側サージタンクを配設し、
これら各側サージタンクに一端側を連絡されるとともに
途中を夫々反対側の各側シリンダヘッド近傍において湾
曲反転されて他端側を夫々各側シリンダヘッドに取付け
られる各側吸気マニホルドの各側一次吸気管を設け、こ
れら各側吸気マニホルドの各側一次吸気管を短縮して連
絡する各側吸気マニホルドの各側二次吸気管を設け、こ
れら各側吸気マニホルドの各側二次吸気管を前記Ｖ型エ
ンジンのクランク軸軸線方向に指向させて直線的に集合
して配列して設け、前記直線的に集合して配列された各
側二次吸気管の各側二次吸気通路に各側切換弁を設け、
これら各側切換弁を前記Ｖ型エンジンの運転状態に応じ
て開閉駆動する単一の切換弁駆動機構を設け、前記各側
サージタンクを連絡する連絡管を設け、この連絡管の連
絡通路に遮断弁を設け、この遮断弁を前記Ｖ型エンジン
の運転状態に応じて開閉駆動する遮断弁駆動機構を設け
たことを特徴とする。Further, according to the present invention, the surge tanks on the respective sides are arranged above the cylinder heads on the respective sides of the V-type engine,
One side of each side intake manifold is connected to each of the surge tanks on one side and curved and inverted in the vicinity of each side cylinder head on the opposite side, and the other side is attached to each side cylinder head. A pipe is provided, each side secondary intake pipe of each side intake manifold that shortens and communicates with each side primary intake pipe of each side intake manifold is provided, and each side secondary intake pipe of each side intake manifold is connected to the V Type engine is provided so as to be linearly gathered and arranged in the direction of the crankshaft axis, and each side switching valve is provided in each side secondary intake passage of each side secondary intake pipe that is linearly gathered and arranged. Is provided
A single switching valve drive mechanism for opening and closing these switching valves on each side according to the operating state of the V-type engine is provided, a connecting pipe for connecting the surge tanks on each side is provided, and the connecting passage of the connecting pipe is shut off. A valve is provided, and a shut-off valve drive mechanism for opening and closing the shut-off valve according to the operating state of the V-type engine is provided.
【００２５】さらに、この発明は、Ｖ型エンジンの各側
シリンダヘッドの上方に夫々各側サージタンクを配設
し、これら各側サージタンクに一端側を連絡されるとと
もに途中を夫々反対側の各側シリンダヘッド近傍におい
て湾曲反転されて他端側を夫々各側シリンダヘッドに取
付けられる各側吸気マニホルドの各側一次吸気管を設
け、これら各側吸気マニホルドの各側一次吸気管の途中
を短縮して連絡する各側吸気マニホルドの各側二次吸気
管を設け、これら各側吸気マニホルドの各側二次吸気管
を前記Ｖ型エンジンのクランク軸軸線方向に指向させて
直線的に集合して配列して設け、前記各側吸気マニホル
ドの各側一次・二次吸気管を前記シリンダブロックの各
側シリンダ軸線を２分して描出される中間軸線に直交す
る平面により前記各側サージタンクを含むタンク側吸気
部と中間の中間吸気部と前記各側シリンダヘッドに取付
けられるヘッド側吸気部とに分割して設け、前記中間吸
気部の直線的に集合して配列された各側二次吸気管の各
側二次吸気通路に各側切換弁を設け、これら各側切換弁
を前記Ｖ型エンジンの運転状態に応じて開閉駆動する単
一の切換弁駆動機構を設け、前記ヘッド側吸気部に各側
燃料噴射弁の取付けられる各側噴射弁取付部を設け、前
記中間吸気部に各側燃料噴射弁の連絡される各側デリバ
リパイプを一体的に設けたことを特徴とする。Further, according to the present invention, the surge tanks on the respective sides are arranged above the cylinder heads on the respective sides of the V-type engine, one end side is connected to the surge tanks on the respective sides, and the surge tanks on the opposite sides are provided on the way. Each side primary intake manifold of each side intake manifold, which is bent in the vicinity of each side cylinder head and whose other end is attached to each side cylinder head, is provided, and the middle of each side primary intake pipe of each side intake manifold is shortened. Each side intake manifold of each side intake manifold that communicates with each other is provided, and each side secondary intake tube of each side intake manifold is linearly gathered and arranged in the crankshaft axis direction of the V-type engine. And each side primary and secondary intake pipe of each side intake manifold is formed by a plane orthogonal to an intermediate axis drawn by dividing the cylinder axis of each side of the cylinder block into two. A tank-side intake section including a charge tank, an intermediate intermediate intake section, and a head-side intake section attached to each of the side cylinder heads, and each side of the intermediate intake section arranged linearly. Each side switching valve is provided on each side secondary intake passage of the secondary intake pipe, and a single switching valve drive mechanism is provided to open / close each side switching valve according to the operating state of the V-type engine. Each side injection valve mounting part to which each side fuel injection valve is mounted is provided in the intake part, and each side delivery pipe connected to each side fuel injection valve is integrally provided in the intermediate intake part.
【００２６】[0026]
【作用】この発明の構成によれば、各側吸気マニホルド
の各側一次吸気管の途中を短縮して連絡する各側二次吸
気管をＶ型エンジンのクランク軸軸線方向に指向させて
直線的に集合して配列して設け、これら各側二次吸気管
の各側二次吸気通路に直線的に集合して配列して設けた
各側切換弁をＶ型エンジンの運転状態に応じて開閉駆動
する単一の切換弁駆動機構を設けたことにより、運転状
態に応じて各側吸気マニホルドの各側一次・二次吸気管
を切換えることができるとともに、単一の駆動源によっ
て各側切換弁を開閉駆動できる。According to the structure of the present invention, the secondary intake pipes on the respective sides of the intake manifolds on the respective sides, which are connected by shortening the middle of the primary intake pipes on the respective sides, are directed linearly in the axial direction of the crankshaft of the V-type engine. The switching valves provided on each side of the secondary intake pipes are opened and closed according to the operating condition of the V-type engine. By providing a single switching valve drive mechanism to drive, it is possible to switch between the primary and secondary intake pipes on each side of the intake manifold on each side according to the operating state, and the switching valve on each side by a single drive source. Can be opened and closed.
【００２７】また、この発明の構成によれば、各側吸気
マニホルドの直線的に集合して配列した各側二次吸気管
の各側二次吸気通路にＶ型エンジンの運転状態に応じて
開閉駆動される各側切換弁を設けるとともに、各側サー
ジタンクを連絡する連絡管の連絡通路にＶ型エンジンの
運転状態に応じて開閉駆動される遮断弁を設けたことに
より、各側切換弁の開閉駆動及び遮断弁の開閉駆動によ
って各側吸気マニホルドの各側一次・二次吸気管及び連
絡管を運転状態に応じて適切に切換えることができる。Further, according to the configuration of the present invention, opening and closing are performed in the respective secondary intake passages of the secondary intake pipes of each side, which are linearly gathered and arranged in the intake manifolds of each side, in accordance with the operating state of the V-type engine. By providing each side switching valve to be driven, and by providing a shutoff valve that is opened / closed according to the operating state of the V-type engine in the communication passage of the communication pipe that connects each side surge tank, By the opening / closing drive and the opening / closing drive of the shutoff valve, the primary / secondary intake pipes and the connecting pipes of the intake manifolds on the respective sides can be appropriately switched according to the operating state.
【００２８】さらに、この発明の構成によれば、Ｖ型エ
ンジンの各側吸気マニホルドの各側一次・二次吸気管
を、各側サージタンクを含むタンク側吸気部と中間の中
間吸気部と前記シリンダヘッドに取付けられるヘッド側
吸気部とに分割して設け、中間吸気部に各側切換弁を設
け、ヘッド側吸気部に各側噴射弁取付部を設け、中間吸
気部に各側デリバリパイプを一体的に設けたことによ
り、各側パイプ取付部を不要とし得て、各側パイプ取付
部により各側吸気管が形状に制約を受ける不都合を回避
し得て、各側燃料噴射弁及び各側デリバリパイプや各側
吸気マニホルド及び各側切換弁の組付けを容易にするこ
とができる。Further, according to the structure of the present invention, each side primary / secondary intake pipe of each side intake manifold of the V-type engine is connected to the tank side intake section including each side surge tank, the intermediate intermediate intake section, and the intermediate intake section. It is divided into a head side intake part attached to the cylinder head, each side switching valve is provided in the intermediate intake part, each side injection valve attachment part is provided in the head side intake part, and each side delivery pipe is provided in the intermediate intake part. By integrally providing, each side pipe mounting part may be unnecessary, and it is possible to avoid the inconvenience that each side pipe mounting part restricts the shape of each side intake pipe, and each side fuel injection valve and each side. The delivery pipe, the intake manifold on each side, and the switching valve on each side can be easily assembled.
【００２９】[0029]
【実施例】以下図面に基づいて、この発明の実施例を詳
細に説明する。Embodiments of the present invention will be described in detail below with reference to the drawings.
【００３０】図１〜図２は、この発明の第１実施例を示
すものである。図において、２はＶ型エンジンである。
Ｖ型エンジン２は、略Ｖ字型のシリンダブロック４に夫
々各側シリンダヘッド６Ａ・６Ｂを載置し、これら各側
シリンダヘッド６Ａ・６Ｂに各側ヘッドカバー８Ａ・８
Ｂを載置してＶ字形状に各側シリンダバンク１０Ａ・１
０Ｂを配列している。各側シリンダバンク１０Ａ・１０
Ｂ間には、空間部１２を形成している。1 and 2 show a first embodiment of the present invention. In the figure, 2 is a V-type engine.
The V-type engine 2 mounts the cylinder heads 6A and 6B on the respective sides on a substantially V-shaped cylinder block 4, and the head covers 8A and 8 on the respective sides to the cylinder heads 6A and 6B on the respective sides.
Place B and put it in a V shape on each side cylinder bank 10A.1
0B is arranged. Each side cylinder bank 10A ・ 10
A space 12 is formed between B.
【００３１】このＶ型エンジン２は、シリンダブロック
４の下部にベアリングキャップ１４を取付けてクランク
軸１６を軸支し、ベアリングキャップ１４の下部にオイ
ルパン（図示せず）を取付けている。In this V-type engine 2, a bearing cap 14 is attached to a lower portion of a cylinder block 4 to rotatably support a crankshaft 16, and an oil pan (not shown) is attached to a lower portion of the bearing cap 14.
【００３２】前記シリンダブロック４には、夫々各側シ
リンダ１８Ａ・１８Ｂを設け、各側ピストン（図示せ
ず）を摺動可能に内蔵している。なお、この実施例にお
いては、一側シリンダバンク１０Ａ側の３つの一側シリ
ンダ１８Ａは、点火順序が連続していない。同様に、他
側シリンダバンク１０Ｂ側の３つの他側シリンダ１８Ｂ
は、点火順序が連続していない。The cylinder block 4 is provided with cylinders 18A and 18B on the respective sides, and pistons (not shown) on the respective sides are slidably incorporated therein. In this embodiment, the three one-side cylinders 18A on the one-side cylinder bank 10A side are not consecutive in ignition order. Similarly, the three other cylinders 18B on the other cylinder bank 10B side
The ignition order is not continuous.
【００３３】前記各側シリンダヘッド６Ａ・６Ｂには、
各側シリンダ１８Ａ・１８Ｂに一致させて各側燃焼室用
窪所２０Ａ・２０Ｂを設け、各側燃焼室用窪所２０Ａ・
２０Ｂに連通する各側吸気ポート２２Ａ・２２Ｂ及び各
側排気ポート２４Ａ・２４Ｂを設けている。The cylinder heads 6A and 6B on each side are provided with
Combustion chamber recesses 20A and 20B for each side are provided so as to correspond to the cylinders 18A and 18B on each side.
Each side intake port 22A, 22B and each side exhaust port 24A, 24B communicating with 20B are provided.
【００３４】前記各側吸気ポート２２Ａ・２２Ｂは、空
間部１２側に上流側を開口して設けている。前記各側排
気ポート２４Ａ・２４Ｂは、Ｖ型エンジン０２の外側に
下流側を開口して設けている。各側シリンダヘッド６Ａ
・６Ｂには、各側吸気ポート２２Ａ・２２Ｂ及び各側排
気ポート２４Ａ・２４Ｂを夫々開閉する各側吸気弁２６
Ａ・２６Ｂ及び各側排気弁２８Ａ・２８Ｂを設け、各側
吸気弁２６Ａ・２６Ｂ及び各側排気弁２８Ａ・２８Ｂを
開閉駆動する各側吸気カム軸３０Ａ・３０Ｂ及び各側排
気カム軸３２Ａ・３２Ｂを軸支している。The intake ports 22A and 22B on the respective sides are provided on the space 12 side with their upstream sides open. The exhaust ports 24A and 24B on each side are provided on the outside of the V-type engine 02 with the downstream side opened. Cylinder head 6A on each side
6B includes intake valves 26 on each side that open and close intake ports 22A and 22B on each side and exhaust ports 24A and 24B on each side.
A / 26B and exhaust valves 28A / 28B on each side are provided, and intake camshafts 30A / 30B on each side and exhaust camshafts 32A / 32B on each side that open / close the intake valves 26A / 26B and exhaust valves 28A / 28B on each side. Is pivotally supported.
【００３５】前記Ｖ型エンジン２の吸気装置は、各側シ
リンダヘッド６Ａ・６Ｂの各側ヘッドカバー８Ａ・８Ｂ
上方に、各側サージタンク３４Ａ・３４Ｂを配設してい
る。各側サージタンク３４Ａ・３４Ｂは、各側タンク通
路３６Ａ・３６Ｂを設け、上流側を図示しない各側吸気
ダクトによりスロットルボディを介してエアクリーナに
連絡されている。The intake system of the V-type engine 2 includes head covers 8A and 8B on the respective sides of cylinder heads 6A and 6B on the respective sides.
Surge tanks 34A and 34B on each side are arranged above. The surge tanks 34A and 34B on the respective sides are provided with tank passages 36A and 36B on the respective sides, and the upstream side is connected to the air cleaner via a throttle body by means of intake ducts on the respective sides not shown.
【００３６】前記各側サージタンク３４Ａ・３４Ｂに
は、各側吸気マニホルド３８Ａ・３８Ｂの低速用の各側
一次吸気管４０Ａ・４０Ｂの一端側が連絡されている。
各側一次吸気管４０Ａ・４０Ｂは、途中を空間部１２の
夫々反対側の各側シリンダヘッド６Ａ・６Ｂ近傍におい
て湾曲反転し、他端側を夫々各側シリンダヘッド６Ａ・
６Ｂに取付けている。The surge tanks 34A and 34B on the respective sides are connected to one end sides of primary intake pipes 40A and 40B on the low speed sides of the intake manifolds 38A and 38B on the respective sides.
The primary intake pipes 40A and 40B on the respective sides are curved and inverted halfway in the vicinity of the respective cylinder heads 6A and 6B on the opposite side of the space 12, and the other end side is connected to the respective cylinder heads 6A and 6B.
It is attached to 6B.
【００３７】なお、この実施例においては、３本の一側
一次吸気管４０Ａの一端側を一側サージタンク３４Ａに
連絡して設けるとともに他端側を一側シリンダヘッド６
Ａに取付けて設け、３本の他側一次吸気管４０Ｂの一端
側を他側サージタンク３４Ｂに連絡して設けるとともに
他端側を他側シリンダヘッド６Ｂに取付けて設けてい
る。In this embodiment, one end side of the three one-side primary intake pipes 40A is provided so as to communicate with the one-side surge tank 34A, and the other end side is provided with the one-side cylinder head 6.
It is provided by being attached to A, one end side of the three other side primary intake pipes 40B is provided in communication with the other side surge tank 34B, and the other end side is provided by being attached to the other side cylinder head 6B.
【００３８】前記各側一次吸気管４０Ａ・４０Ｂには、
各側一次吸気通路４２Ａ・４２Ｂを設けている。各側一
次吸気通路４２Ａ・４２Ｂは、一端側を前記各側タンク
通路３６Ａ・３６Ｂに連通されるとともに、他端側を前
記各側吸気ポート２２Ａ・２２Ｂに連通される。In each side primary intake pipe 40A, 40B,
Primary intake passages 42A and 42B are provided on each side. One end of each side primary intake passage 42A, 42B is communicated with each side tank passage 36A, 36B, and the other end is communicated with each side intake port 22A, 22B.
【００３９】また、各側吸気マニホルド３８Ａ・３８Ｂ
は、各側一次吸気管４０Ａ・４０Ｂの途中を短縮して連
絡する高速用の各側二次吸気管４４Ａ・４４Ｂを設けて
いる。各側二次吸気管４４Ａ・４４Ｂは、Ｖ型エンジン
２のクランク軸１６の軸線Ｃ１方向に指向させて、直線
的に集合して配列して設けている。各側二次吸気管４４
Ａ・４４Ｂには、各側二次吸気通路４６Ａ・４６Ｂを設
けている。各側二次吸気通路４６Ａ・４６Ｂは、両端側
を夫々前記各側一次吸気通路４２Ａ・４２Ｂに連通され
る。なお、この実施例においては、３本の一側二次吸気
管４４Ａを設けるとともに、３本の他端二次吸気管４４
Ｂを設けている。The intake manifolds 38A and 38B on each side are also provided.
Is provided with high-speed secondary intake pipes 44A and 44B on each side for shortening and connecting the primary intake pipes 40A and 40B on each side. The secondary intake pipes 44A and 44B on the respective sides are provided so as to be linearly gathered and arranged so as to be oriented in the direction of the axis C1 of the crankshaft 16 of the V-type engine 2. Secondary intake pipe 44 on each side
A / 44B is provided with secondary intake passages 46A / 46B on each side. Both side secondary intake passages 46A and 46B are connected to both side primary intake passages 42A and 42B, respectively. In addition, in this embodiment, three one side secondary intake pipes 44A are provided, and three other end secondary intake pipes 44A are provided.
B is provided.
【００４０】前記各側シリンダヘッド６Ａ・６Ｂには、
空間部１２側に各側ヘッド部取付フランジ４８Ａ・４８
Ｂを設けている。各側ヘッド部取付フランジ４８Ａ・４
８Ｂには、前記各側吸気ポート２２Ａ・２２Ｂの上流側
を開口して設けている。また、前記各側吸気マニホルド
３８Ａ・３８Ｂの各側一次吸気管４０Ａ・４０Ｂには、
前記各側ヘッド部取付フランジ４８Ａ・４８Ｂに取付け
られる各側一次吸気管部取付フランジ５０Ａ・５０Ｂを
設けている。The cylinder heads 6A and 6B on each side are provided with
Head side mounting flanges 48A, 48 on each side of the space 12
B is provided. Head side mounting flange 48A / 4
8B is provided by opening the upstream side of each of the intake ports 22A and 22B. In addition, on each side primary intake pipe 40A, 40B of each side intake manifold 38A, 38B,
Each side primary intake pipe portion mounting flange 50A, 50B is provided to be mounted on each side head portion mounting flange 48A, 48B.
【００４１】前記各側吸気マニホルド３８Ａ・３８Ｂ
は、各側一次吸気管４０Ａ・４０Ｂ及び各側二次吸気管
４４Ａ・４４Ｂを、シリンダブロック４の各側シリンダ
１８Ａ・１８Ｂの軸線Ｃ２Ａ・Ｃ２Ｂを２分して描出さ
れる中間軸線Ｃ３に直交する１つの平面Ｐにより、各側
サージタンク３４Ａ・３４Ｂを含むタンク側吸気部５２
と前記各側シリンダヘッド６Ａ・６Ｂに取付けられるヘ
ッド側吸気部５４とに分割して設けている。Each side intake manifold 38A / 38B
Is orthogonal to the intermediate axis C3 drawn by dividing the primary intake pipes 40A and 40B on each side and the secondary intake pipes 44A and 44B on each side into two axes C2A and C2B of the cylinders 18A and 18B of the cylinder block 4. By the one plane P to perform, the tank side intake section 52 including the surge tanks 34A and 34B on each side is provided.
And a head-side intake portion 54 attached to each of the side cylinder heads 6A and 6B.
【００４２】前記タンク側吸気部５２の直線的に集合し
て配列された各側二次吸気管４４Ａ・４４Ｂは、各側二
次吸気通路４６Ａ・４６Ｂに夫々各側切換弁５６Ａ・５
６Ｂを設けている。各側切換弁５６Ａ・５６Ｂは、３つ
の一側切換弁５６Ａを設けるとともに、３つの他端切換
弁５６Ｂを設けている。The respective side secondary intake pipes 44A and 44B linearly gathered and arranged in the tank side intake portion 52 are arranged in the respective side secondary intake passages 46A and 46B.
6B is provided. Each of the side switching valves 56A and 56B is provided with three one side switching valves 56A and three other end switching valves 56B.
【００４３】前記各側切換弁５６Ａ・５６Ｂは、各側二
次吸気通路４６Ａ・４６Ｂを貫通して、タンク側吸気部
５２の各側二次吸気管４４Ａ・４４Ｂに軸支された、１
本の切換弁軸５８に取付けられている。これら各側切換
弁５６Ａ・５６Ｂは、単一の切換弁駆動機構６０により
開閉駆動され、各側二次吸気通路４６Ａ・４６Ｂを開閉
する。The respective side switching valves 56A, 56B penetrate the respective side secondary intake passages 46A, 46B and are axially supported by the respective side secondary intake pipes 44A, 44B of the tank side intake portion 52.
It is attached to the switching valve shaft 58 of the book. The switching valves 56A and 56B on each side are opened and closed by a single switching valve drive mechanism 60 to open and close the secondary intake passages 46A and 46B on each side.
【００４４】切換弁駆動機構６０は、Ｖ型エンジン２の
運転状態に応じて動作される切換弁アクチュエータ６２
を設けている。切換弁アクチュエータ６２は、切換弁ロ
ッド６４を前記切換弁軸５８に設けた切換弁レバー６６
に連絡している。これにより、切換弁駆動機構６０は、
Ｖ型エンジン２の運転状態に応じて切換弁アクチュエー
タ６２により切換弁レバー６６を介して切換弁軸５８を
回動させ、各側切換弁５６Ａ・５６Ｂを開閉駆動して各
側二次吸気通路４６Ａ・４６Ｂを開閉する。The switching valve drive mechanism 60 is a switching valve actuator 62 that operates according to the operating state of the V-type engine 2.
Is provided. The switching valve actuator 62 includes a switching valve lever 66 having a switching valve rod 64 provided on the switching valve shaft 58.
Have been contacted. Thereby, the switching valve drive mechanism 60 is
The switching valve actuator 62 rotates the switching valve shaft 58 via the switching valve lever 66 according to the operating state of the V-type engine 2 to open / close the switching valves 56A and 56B on each side to drive the secondary intake passage 46A on each side.・ Open and close 46B.
【００４５】また、このＶ型エンジン２は、各側燃料噴
射弁６８Ａ・６８Ｂ及び各側デリバリパイプ７０Ａ・７
０Ｂを備えている。各側燃料噴射弁６８Ａ・６８Ｂは、
３本の一側燃料噴射弁６８Ａと、３本の他側燃料噴射弁
６８Ｂと、からなる。各側燃料噴射弁６８Ａ・６８Ｂ
は、夫々１本の各側デリバリパイプ７０Ａ・７０Ｂによ
り燃料を分配して供給される。Further, the V-type engine 2 includes the fuel injection valves 68A and 68B on each side and the delivery pipes 70A and 7 on each side.
It has 0B. The fuel injection valves 68A and 68B on each side are
It is composed of three one side fuel injection valves 68A and three other side fuel injection valves 68B. Fuel injection valves 68A and 68B on each side
Is distributed and supplied by one delivery pipe 70A on each side.
【００４６】前記ヘッド側吸気部５４の各側一次吸気管
４０Ａ・４０Ｂには、各側一次吸気管部取付フランジ５
０Ａ・５０Ｂに各側噴射弁取付部７２Ａ・７２Ｂを設け
ている。前記各側燃料噴射弁６８Ａ・６８Ｂは、各側一
次吸気管部取付フランジ５０Ａ・５０Ｂの各側噴射弁取
付部７２Ａ・７２Ｂに、各側シリンダ１８Ａ・１８Ｂ方
向に指向させて取付けられる。Each side primary intake pipe 40A, 40B of the head side intake portion 54 has a primary side intake pipe mounting flange 5 on each side.
0A and 50B are provided with injection valve mounting portions 72A and 72B on each side. The respective side fuel injection valves 68A and 68B are attached to the respective side injection valve mounting portions 72A and 72B of the respective side primary intake pipe portion mounting flanges 50A and 50B so as to be oriented in the respective side cylinders 18A and 18B.
【００４７】また、前記各側一次吸気管４０Ａ・４０Ｂ
には、各側パイプ取付部７４Ａ・７４Ｂを設けている。
前記各側デリバリパイプ７０Ａ・７０Ｂは、各側パイプ
取付部７４Ａ・７４Ｂに取付けられ、各側燃料噴射弁６
８Ａ・６８Ｂに夫々連絡される。The primary intake pipes 40A and 40B on each side are also provided.
Each side is provided with pipe mounting portions 74A and 74B.
The delivery pipes 70A and 70B on each side are attached to the pipe attachment portions 74A and 74B on each side, and the fuel injection valve 6 on each side is attached.
8A and 68B are contacted respectively.
【００４８】次に作用を説明する。Next, the operation will be described.
【００４９】このＶ型エンジン２の吸気装置は、各側シ
リンダヘッド６Ａ・６Ｂの上方に各側サージタンク３４
Ａ・３４Ｂを配設し、各側サージタンク３４Ａ・３４Ｂ
に各側吸気マニホルド３８Ａ・３８Ｂの各側一次吸気管
４０Ａ・４０Ｂの一端側を連絡し、各側一次吸気管４０
Ａ・４０Ｂの途中を夫々反対側の各側シリンダヘッド６
Ａ・６Ｂ近傍において湾曲反転し、他端側を夫々各側シ
リンダヘッド６Ａ・６Ｂに取付けている。The intake system of the V-type engine 2 includes a surge tank 34 on each side above the cylinder heads 6A and 6B on each side.
Surge tanks 34A and 34B on each side with A and 34B
To one side of the primary intake pipes 40A and 40B of the intake manifolds 38A and 38B.
Cylinder head 6 on each side on the opposite side in the middle of A and 40B
The curves are inverted in the vicinity of A and 6B, and the other ends are attached to the respective cylinder heads 6A and 6B.
【００５０】この各側吸気マニホルド３８Ａ・３８Ｂ
は、各側一次吸気管４０Ａ・４０Ｂの途中を短縮して連
絡する各側二次吸気管４４Ａ・４４Ｂを設け、この各側
二次吸気管４４Ａ・４４ＢをＶ型エンジン２のクランク
軸１６の軸線Ｃ１方向に指向させて直線的に集合して配
列して設けている。Each side intake manifold 38A / 38B
Is provided with secondary suction pipes 44A and 44B on the respective sides which shorten and connect the primary suction pipes 40A and 40B on the respective sides, and the secondary suction pipes 44A and 44B on the respective sides are connected to the crankshaft 16 of the V-type engine 2. They are arranged in a straight line by being oriented in the direction of the axis C1.
【００５１】これら各側二次吸気管４４Ａ・４４Ｂの各
側二次吸気通路４６Ａ・４６Ｂには、各側切換弁５６Ａ
・５６Ｂを設けている。各側切換弁５６Ａ・５６Ｂは、
直線的に集合して配列されており、Ｖ型エンジン２の運
転状態に応じて単一の切換弁駆動機構６０により開閉駆
動される。In each side secondary intake passage 46A, 46B of each side secondary intake pipe 44A, 44B, each side switching valve 56A is provided.
・ 56B is provided. The switching valves 56A and 56B on each side are
The valves are arranged linearly and are opened and closed by a single switching valve drive mechanism 60 according to the operating state of the V-type engine 2.
【００５２】これにより、このＶ型エンジン２の吸気装
置は、各側切換弁５６Ａ・５６Ｂを開閉駆動することに
よって、各側吸気マニホルド３８Ａ・３８Ｂの各側一次
吸気管４０Ａ・４０Ｂと各側二次吸気管４４Ａ・４４Ｂ
とを運転状態に応じて切換えることができる。例えば、
各側切換弁５６Ａ・５６Ｂは、低・中速域において各側
二次吸気通路４６Ａ・４８Ｂを閉じ、高速域において各
側二次吸気通路４６Ａ・４６Ｂを開くように、開閉駆動
される。このため、吸気装置は、Ｖ型エンジン２の運転
状態に応じて吸気を各側一次吸気通路４２Ａ・４２Ｂと
各側二次吸気通路４６Ａ・４６Ｂとに切換え得ることよ
り、低・中速域のトルクを犠牲にせずに高出力を得るこ
とができ、十分なトルク向上を果たすことができる。As a result, the intake system of the V-type engine 2 opens and closes the switching valves 56A and 56B on the respective sides to open and close the primary intake pipes 40A and 40B and the secondary intake pipes 40A and 40B on the respective intake manifolds 38A and 38B. Next intake pipe 44A ・ 44B
And can be switched according to the operating state. For example,
Each side switching valve 56A / 56B is opened / closed so as to close each side secondary intake passage 46A / 48B in the low / medium speed range and open each side secondary intake passage 46A / 46B in the high speed range. Therefore, the intake device can switch the intake air to the primary intake passages 42A and 42B on each side and the secondary intake passages 46A and 46B on each side in accordance with the operating state of the V-type engine 2, so that the intake system in the low / medium speed range is controlled. High output can be obtained without sacrificing torque, and sufficient torque improvement can be achieved.
【００５３】また、この吸気装置は、Ｖ型エンジン２の
クランク軸１４の軸線Ｃ１方向に指向させて直線的に集
合して配列した各側二次吸気管４４Ａ・４４Ｂの各側二
次吸気通路４６Ａ・４６Ｂに、各側切換弁５６Ａ・５６
Ｂを設けている。したがって、複数の各側切換弁５６Ａ
・５６Ｂは、１本の切換弁軸５８に直線的に配列されて
取付けられており、単一の駆動源たる切換弁駆動機構６
０によって開閉駆動することできる。このため、この吸
気装置は、簡単な構造となり、低コストに実施すること
ができる。Further, this intake device is provided with the secondary intake passages on the respective sides of the secondary intake pipes 44A and 44B on the respective sides which are linearly gathered and aligned in the direction of the axis C1 of the crankshaft 14 of the V-type engine 2. 46A / 46B, each side switching valve 56A / 56
B is provided. Therefore, a plurality of each side switching valves 56A
56B is linearly arranged and attached to one switching valve shaft 58, and the switching valve drive mechanism 6 serving as a single drive source.
It can be opened and closed by 0. Therefore, this intake device has a simple structure and can be implemented at low cost.
【００５４】図３〜図４は、この発明の第２実施例を示
すものである。なお、この第２実施例においては、第１
実施例と同一機能を果たす箇所に、図１〜図２の符号を
１００番台とした符号を付して説明する。3 to 4 show a second embodiment of the present invention. In the second embodiment, the first
Description will be given by assigning the reference numerals in FIGS. 1 and 2 to the 100 series to the portions having the same functions as those of the embodiment.
【００５５】図３〜図４において、１０２はＶ型エンジ
ン、１０４はシリンダブロック、１０６Ａ・１０６Ｂは
各側シリンダヘッド、１０８Ａ・１０８Ｂは各側ヘッド
カバー、１１０Ａ・１１０Ｂは各側シリンダバンク、１
１２は空間部、１１４はベアリングキャップ、１１６は
クランク軸、１１８Ａ・１１８Ｂは各側シリンダ、１２
０Ａ・１２０Ｂは各側燃焼室用窪所、１２２Ａ・１２２
Ｂは各側吸気ポート、１２４Ａ・１２４Ｂは各側排気ポ
ート、１２６Ａ・１２６Ｂは各側吸気弁、１２８Ａ・１
２８Ｂは各側排気弁、１３０Ａ・１３０Ｂは各側吸気カ
ム軸、１３２Ａ・１３２Ｂは各側排気カム軸である。3 to 4, 102 is a V-type engine, 104 is a cylinder block, 106A and 106B are cylinder heads on each side, 108A and 108B are head covers on each side, 110A and 110B are cylinder banks on each side, and 1 is a cylinder bank.
12 is a space portion, 114 is a bearing cap, 116 is a crankshaft, 118A and 118B are cylinders on each side, 12
0A / 120B is a recess for each side combustion chamber, 122A / 122
B is each side intake port, 124A / 124B is each side exhaust port, 126A / 126B is each side intake valve, 128A / 1
28B is an exhaust valve on each side, 130A and 130B are intake cam shafts on each side, and 132A and 132B are exhaust cam shafts on each side.
【００５６】このＶ型エンジン１０２の吸気装置は、図
１〜図２と同様に、各側シリンダヘッド１０６Ａ・１０
６Ｂの上方に各側サージタンク１３４Ａ・１３４Ｂを配
設し、各側サージタンク１３４Ａ・１３４Ｂの各側タン
ク通路１３６Ａ・１３６Ｂに各側吸気マニホルド１３８
Ａ・１３８Ｂの低速用の夫々３本の各側一次吸気管１４
０Ａ・１４０Ｂの各側一次吸気通路１４２Ａ・１４２Ｂ
の一端側を連絡している。The intake system for the V-type engine 102 is similar to that shown in FIGS.
The surge tanks 134A and 134B on the respective sides are arranged above 6B, and the intake manifold 138 on the respective sides is provided in the tank passages 136A and 136B on the respective sides of the surge tanks 134A and 134B.
A.138B low speed three each side primary intake pipe 14
0A / 140B each side primary intake passage 142A / 142B
Is contacting one end side of.
【００５７】各側一次吸気管１４０Ａ・１４０Ｂは、途
中を夫々反対側の各側シリンダヘッド１０６Ａ・１０６
Ｂ近傍において湾曲反転し、他端側を夫々各側シリンダ
ヘッド１０６Ａ・１０６Ｂに取付けている。The primary intake pipes 140A and 140B on the respective sides are provided with the cylinder heads 106A and 106 on the opposite sides on the way, respectively.
The curve is inverted in the vicinity of B, and the other ends are attached to the respective cylinder heads 106A and 106B.
【００５８】これら各側吸気マニホルド１３８Ａ・１３
８Ｂは、各側一次吸気管１４０Ａ・１４０Ｂの途中を短
縮して連絡する高速用の夫々３本の各側二次吸気管１４
４Ａ・１４４Ｂを設けている。これら各側二次吸気管１
４４Ａ・１４４Ｂは、Ｖ型エンジン１０２のクランク軸
１１６の軸線Ｃ１方向に指向させて直線的に集合して配
列して設けている。各側二次吸気管１４４Ａ・１４４Ｂ
の各側二次吸気通路１４６Ａ・１４６Ｂは、両端側を各
側一次吸気通路１４２Ａ・１４２Ｂに連通されている。Each of these side intake manifolds 138A.13
8B includes three secondary intake pipes 14 on each side for high speed, which connect the primary intake pipes 140A and 140B on each side by shortening the middle.
4A and 144B are provided. Secondary intake pipe 1 on each side
44A and 144B are arranged in a straight line by being oriented in the direction of the axis C1 of the crankshaft 116 of the V-type engine 102. Secondary intake pipes 144A and 144B on each side
Both side secondary intake passages 146A and 146B are communicated with both side primary intake passages 142A and 142B.
【００５９】前記各側吸気マニホルド１３８Ａ・１３８
Ｂは、各側一次吸気管１４０Ａ・１４０Ｂ及び各側二次
吸気管１４４Ａ・１４４Ｂを、図１・図２と同様に、平
面Ｐにより各側サージタンク１３４Ａ・１３４Ｂを含む
タンク側吸気部１５２と、前記各側シリンダヘッド１０
６Ａ・１０６Ｂに取付けられるヘッド側吸気部１５４
と、に分割して設けている。Each side intake manifold 138A.138
B designates the primary intake pipes 140A and 140B on each side and the secondary intake pipes 144A and 144B on each side by the plane P as well as the tank side intake portion 152 including the surge tanks 134A and 134B on the respective sides. , Each side cylinder head 10
Head side air intake part 154 attached to 6A and 106B
It is divided into two parts.
【００６０】タンク側吸気部１５２の直線的に集合して
配列された各側二次吸気管４４Ａ・４４Ｂの各側二次吸
気通路１４６Ａ・１４６Ｂには、夫々３つの各側切換弁
１５６Ａ・１５６Ｂを設けている。各側切換弁１５６Ａ
・１５６Ｂは、１本の切換弁軸１５８に取付けられ、Ｖ
型エンジン１０２の運転状態に応じて単一の切換弁駆動
機構１６０により開閉駆動される。切換弁駆動機構１６
０は、切換弁アクチュエータ１６２の切換弁ロッド１６
４を、切換弁軸１５８の切換弁レバー１６６に連絡して
いる。Three side switching valves 156A and 156B are respectively provided in the respective side secondary intake passages 146A and 146B of the respective side secondary intake pipes 44A and 44B arranged linearly in the tank side intake portion 152. Is provided. Each side switching valve 156A
156B is attached to one switching valve shaft 158, and V
It is opened and closed by a single switching valve drive mechanism 160 according to the operating state of the die engine 102. Switching valve drive mechanism 16
0 is the switching valve rod 16 of the switching valve actuator 162.
4 is connected to the switching valve lever 166 of the switching valve shaft 158.
【００６１】なお、符号１６８Ａ・１６８Ｂは各側燃料
噴射弁、符号１７０Ａ・１７０Ｂは各側デリバリパイプ
である。夫々３本の各側燃料噴射弁１６８Ａ・１６８Ｂ
は、各側噴射弁取付部１７２Ａ・１７２Ｂに取付けられ
る。また、夫々１本の各側デリバリパイプ１７０Ａ・１
７０Ｂは、各側パイプ取付部１７４Ａ・１７４Ｂに取付
けられ、各側燃料噴射弁１６８Ａ・１６８Ｂに夫々連絡
される。Reference numerals 168A and 168B are fuel injection valves on each side, and reference numerals 170A and 170B are delivery pipes on each side. Three fuel injection valves 168A and 168B on each side
Is attached to each side injection valve attachment portion 172A / 172B. Also, one delivery pipe for each side 170A.1
70B is attached to each side pipe attachment part 174A * 174B, and is connected to each side fuel injection valve 168A * 168B, respectively.
【００６２】また、このＶ型エンジン１０２の吸気装置
は、各側サージタンク１３４Ａ・１３４Ｂを連絡する連
絡管１７６を設けている。この連絡管１７６は、連絡通
路１７８を設けている。連絡通路１７８は、各側タンク
通路１３６Ａ・１３６Ｂを連通している。Further, the intake system of the V-type engine 102 is provided with a connecting pipe 176 for connecting the surge tanks 134A and 134B on each side. The communication pipe 176 is provided with a communication passage 178. The communication passage 178 connects the tank passages 136A and 136B on each side.
【００６３】連絡通路１７８には、遮断弁１８０を設け
ている。遮断弁１８０は、連絡通路１７８を貫通して連
絡管１７６に軸支された遮断弁軸１８２に取付けられて
いる。この遮断弁１８０は、遮断弁駆動機構１８４によ
り開閉駆動され、連絡通路１７８を開閉する。遮断弁駆
動機構１８４は、Ｖ型エンジン１０２の運転状態に応じ
て動作される遮断弁アクチュエータ１８６を設けてい
る。遮断弁アクチュエータ１８６は、切換弁ロッド１８
８を前記遮断弁軸１８２に設けた遮断弁レバー１９０に
連絡している。A shutoff valve 180 is provided in the communication passage 178. The shutoff valve 180 is attached to a shutoff valve shaft 182 which penetrates the communication passage 178 and is axially supported by the communication pipe 176. The shutoff valve 180 is opened and closed by a shutoff valve drive mechanism 184 to open and close the communication passage 178. The shutoff valve drive mechanism 184 is provided with a shutoff valve actuator 186 that operates according to the operating state of the V-type engine 102. The shut-off valve actuator 186 includes the switching valve rod 18
8 is connected to a shutoff valve lever 190 provided on the shutoff valve shaft 182.
【００６４】遮断弁駆動機構１８４は、Ｖ型エンジン１
０２の運転状態に応じて遮断弁アクチュエータ１８６に
より遮断弁レバー１９０を介して遮断弁軸１８２を回動
させ、遮断弁１８０を開閉駆動して連絡通路１７８を開
閉する。The shutoff valve drive mechanism 184 is used for the V-type engine 1
The shut-off valve actuator 186 rotates the shut-off valve shaft 182 via the shut-off valve lever 190 in accordance with the operating state of No. 02 to open / close the shut-off valve 180 to open / close the communication passage 178.
【００６５】この第２実施例の吸気装置は、前記の如
く、各側吸気マニホルド１３８Ａ・１３８Ｂの直線的に
集合して配列した各側二次吸気管１４４Ａ・１４４Ｂの
各側二次吸気通路１４６Ａ・１４６Ｂに各側切換弁１５
６Ａ・１５６Ｂを設け、直線的に配列した各側切換弁１
５６Ａ・１５６ＢをＶ型エンジン１０２の運転状態に応
じて開閉駆動する単一の切換弁駆動機構１６０を設けて
いる。As described above, the intake system according to the second embodiment has the secondary intake passages 146A on the respective sides of the secondary intake pipes 144A, 144B arranged on the respective side intake manifolds 138A, 138B arranged linearly.・ Switching valve 15 on each side on 146B
6A and 156B are provided, and each side switching valve 1 is arranged linearly.
A single switching valve drive mechanism 160 that drives the 56A and 156B to open and close according to the operating state of the V-type engine 102 is provided.
【００６６】また、この吸気装置は、各側サージタンク
１３４Ａ・１３４Ｂを連絡する連絡管１７６の連絡通路
１７８に遮断弁１８０を設け、この遮断弁１８０をＶ型
エンジン１０２の運転状態に応じて開閉駆動する遮断弁
駆動機構１８４を設けている。遮断弁１８０は、Ｖ型エ
ンジン１０２の吸気共鳴効果の得られる中速域において
開かれ、充填効率を向上する。また、遮断弁１８０は、
Ｖ型エンジン１０２の吸気共鳴効果の得られない回転域
において閉じられる。Further, in this intake device, a shutoff valve 180 is provided in a communication passage 178 of a communication pipe 176 which communicates the surge tanks 134A and 134B on each side, and the shutoff valve 180 is opened / closed in accordance with the operating state of the V-type engine 102. A shutoff valve drive mechanism 184 for driving is provided. The shutoff valve 180 is opened in the medium speed range where the intake resonance effect of the V-type engine 102 is obtained, and the charging efficiency is improved. Further, the shutoff valve 180 is
The V-type engine 102 is closed in the rotation range where the intake resonance effect is not obtained.
【００６７】各側切換弁１５６Ａ・１５６Ｂ及び遮断弁
１８０の開閉動作域は、例えば、以下のように設定され
る。The open / close operation range of each side switching valve 156A / 156B and the shutoff valve 180 is set as follows, for example.
【００６８】低速域においては、各側切換弁１５６Ａ・
１５６Ｂを閉じ、遮断弁１８０を閉じる。これにより、
吸気は、低速用の各側一次吸気管４０Ａ・４０Ｂの各側
一次吸気通路４２Ａ・４２Ｂを流れ、低速用の各側一次
吸気通路４２Ａ・４２Ｂの吸気慣性により充填効率を向
上し、トルクの向上を図ることができる。In the low speed range, each side switching valve 156A
156B is closed and shutoff valve 180 is closed. This allows
The intake air flows through the primary intake passages 42A and 42B of the primary intake pipes 40A and 40B for low speed, and the charging efficiency is improved by the intake inertia of the primary intake passages 42A and 42B of low speed to improve the torque. Can be achieved.
【００６９】中速域においては、各側切換弁１５６Ａ・
１５６Ｂを閉じ、遮断弁１８０を開く。これにより、吸
気は、低速用の各側一次吸気管４０Ａ・４０Ｂの各側一
次吸気通路４２Ａ・４２Ｂを流れ、連絡管１７６の連絡
通路１７８により共鳴され、連絡管１７６の連絡通路１
７８の吸気共鳴効果により充填効率を向上し、トルクの
向上を図ることができる。In the medium speed range, each side switching valve 156A
156B is closed and shutoff valve 180 is opened. As a result, the intake air flows through the primary intake passages 42A and 42B on the respective sides of the low-speed primary intake pipes 40A and 40B, is resonated by the communication passage 178 of the communication pipe 176, and connects the communication passage 1 of the communication pipe 176.
Due to the intake resonance effect of 78, the charging efficiency can be improved and the torque can be improved.
【００７０】高速域においては、各側切換弁１５６Ａ・
１５６Ｂを開き、遮断弁１８０を閉じる。これにより、
吸気は、高速用の各側二次吸気管４４Ａ・４４Ｂの各側
二次吸気通路４６Ａ・４６Ｂを流れ、高速用の各側二次
吸気通路４６Ａ・４６Ｂの吸気慣性により充填効率を向
上し、トルクの向上を図ることができる。In the high speed range, each side switching valve 156A
156B is opened and the shutoff valve 180 is closed. This allows
The intake air flows through the secondary intake passages 46A and 46B of the secondary intake pipes 44A and 44B for high speed, and the charging efficiency is improved by the intake inertia of the secondary intake passages 46A and 46B of high speed. The torque can be improved.
【００７１】このように、この吸気装置は、Ｖ型エンジ
ン１０２の運転状態に応じて開閉される各側切換弁１５
６Ａ・１５６Ｂ及び遮断弁１８０を設けている。As described above, the intake system includes the side switching valves 15 which are opened and closed according to the operating state of the V-type engine 102.
6A and 156B and a shutoff valve 180 are provided.
【００７２】これにより、この吸気装置は、各側切換弁
１５６Ａ・１５６Ｂ及び遮断弁１８０の開閉駆動によっ
て、各側吸気マニホルド３８Ａ・３８Ｂの各側一次吸気
管１４０Ａ・１４０Ｂ、各側二次吸気管４４Ａ・４４Ｂ
及び連絡管１７６を運転状態に応じて適切に切換えるこ
とができる。このため、この吸気装置は、効果的に吸気
慣性及び吸気共鳴を利用でき、Ｖ型エンジン１０２の全
回転域において十分なトルク向上を果たすことができ
る。また、単一の切換弁駆動機構１６０によって複数の
各側切換弁５６Ａ・５６Ｂを開閉駆動でき、簡単な構造
となり、低コストに実施し得る。As a result, in this intake device, by opening and closing the switching valves 156A and 156B on each side and the shutoff valve 180, the primary intake pipes 140A and 140B on each side of the intake manifolds 38A and 38B and the secondary intake pipes on each side. 44A / 44B
And the connecting pipe 176 can be appropriately switched according to the operating state. Therefore, the intake system can effectively utilize the intake inertia and the intake resonance, and can sufficiently improve the torque in the entire rotation range of the V-type engine 102. Further, the single switching valve driving mechanism 160 can drive the plurality of switching valves 56A and 56B on each side to open and close, which has a simple structure and can be implemented at low cost.
【００７３】図５〜図９は、この発明の第３実施例を示
すものである。なお、この第３実施例においては、第１
実施例と同一機能を果たす箇所に、図１〜図２の符号を
２００番台とした符号を付して説明する。5 to 9 show a third embodiment of the present invention. In the third embodiment, the first
1 to 2 will be denoted by reference numerals in the 200s and will be described.
【００７４】図５〜図９において、２０２はＶ型エンジ
ン、２０４はシリンダブロック、２０６Ａ・２０６Ｂは
各側シリンダヘッド、２０８Ａ・２０８Ｂは各側ヘッド
カバー、２１０Ａ・２１０Ｂは各側シリンダバンク、２
１２は空間部、２１４はベアリングキャップ、２１６は
クランク軸、２１８Ａ・２１８Ｂは各側シリンダ、２２
０Ａ・２２０Ｂは各側燃焼室用窪所、２２２Ａ・２２２
Ｂは各側吸気ポート、２２４Ａ・２２４Ｂは各側排気ポ
ート、２２６Ａ・２２６Ｂは各側吸気弁、２２８Ａ・２
２８Ｂは各側排気弁、２３０Ａ・２３０Ｂは各側吸気カ
ム軸、２３２Ａ・２３２Ｂは各側排気カム軸である。5 to 9, 202 is a V-type engine, 204 is a cylinder block, 206A and 206B are cylinder heads on each side, 208A and 208B are head covers on each side, 210A and 210B are cylinder banks on each side, and 2 are cylinder banks.
12 is a space portion, 214 is a bearing cap, 216 is a crankshaft, 218A and 218B are cylinders on each side, 22
0A / 220B is a recess for each side combustion chamber, 222A / 222
B is each side intake port, 224A and 224B is each side exhaust port, 226A and 226B is each side intake valve, 228A and 2
28B is an exhaust valve on each side, 230A and 230B are intake cam shafts on each side, and 232A and 232B are exhaust cam shafts on each side.
【００７５】このＶ型エンジン２０２の吸気装置は、図
１〜図２と同様に、各側シリンダヘッド２０６Ａ・２０
６Ｂの上方に各側サージタンク２３４Ａ・２３４Ｂを配
設し、各側サージタンク２３４Ａ・２３４Ｂの各側タン
ク通路２３６Ａ・２３６Ｂに各側吸気マニホルド２３８
Ａ・２３８Ｂの低速用の夫々３本の各側一次吸気管２４
０Ａ・２４０Ｂの各側一次吸気通路２４２Ａ・２４２Ｂ
の一端側を連絡している。The intake system for this V-type engine 202 is similar to that shown in FIGS.
The surge tanks 234A and 234B on each side are arranged above the 6B, and the intake manifold 238 on each side is provided in the tank passages 236A and 236B on each side of the surge tanks 234A and 234B.
A. 238B low speed three each side primary intake pipe 24
0A / 240B each side primary intake passage 242A / 242B
Is contacting one end side of.
【００７６】各側一次吸気管２４０Ａ・２４０Ｂは、途
中を夫々反対側の各側シリンダヘッド２０６Ａ・２０６
Ｂ近傍において湾曲反転し、他端側を夫々各側シリンダ
ヘッド２０６Ａ・２０６Ｂに取付けている。The primary intake pipes 240A and 240B on the respective sides are provided with the cylinder heads 206A and 206 on the respective sides on the opposite side.
The curve is inverted in the vicinity of B, and the other ends are attached to the respective cylinder heads 206A and 206B.
【００７７】これら各側吸気マニホルド２３８Ａ・２３
８Ｂは、各側一次吸気管２４０Ａ・２４０Ｂの途中を短
縮して連絡する高速用の夫々３本の各側二次吸気管２４
４Ａ・２４４Ｂを設けている。これら各側二次吸気管２
４４Ａ・２４４Ｂは、Ｖ型エンジン２０２のクランク軸
２１６の軸線Ｃ１方向に指向させて直線的に集合して配
列して設けている。各側二次吸気管２４４Ａ・２４４Ｂ
の各側二次吸気通路２４６Ａ・２４６Ｂは、両端側を各
側一次吸気通路２４２Ａ・２４２Ｂに連通されている。Each side intake manifold 238A ・ 23
8B includes three secondary intake pipes 24 on each side for high speed, which connect the primary intake pipes 240A and 240B on each side by shortening the middle.
4A and 244B are provided. Secondary intake pipe 2 on each side
44A and 244B are arranged in a straight line by being oriented in the direction of the axis C1 of the crankshaft 216 of the V-type engine 202. Secondary intake pipes 244A and 244B on each side
Both side secondary intake passages 246A and 246B are communicated with both side primary intake passages 242A and 242B.
【００７８】前記各側吸気マニホルド２３８Ａ・２３８
Ｂは、各側一次吸気管２４０Ａ・２４０Ｂ及び各側二次
吸気管２４４Ａ・２４４Ｂを、シリンダブロック４の各
側シリンダ２１８Ａ・２１８Ｂの軸線Ｃ２Ａ・Ｃ２Ｂを
２分して描出される中間軸線Ｃ３に直交する２つの平面
Ｐ１・Ｐ２により、各側サージタンク２３４Ａ・２３４
Ｂを含むタンク側吸気部２５２と、中間の中間部２５３
と、前記各側シリンダヘッド２０６Ａ・２０６Ｂに取付
けられるヘッド側吸気部２５４と、に分割して設けてい
る。Each side intake manifold 238A, 238
B is an intermediate axis C3 which is drawn by dividing the primary intake pipes 240A and 240B on each side and the secondary intake pipes 244A and 244B on each side into two axes C2A and C2B of the cylinders 218A and 218B of the cylinder block 4. The two orthogonal planes P1 and P2 allow the surge tanks 234A and 234 on each side to
Tank side intake part 252 including B, and intermediate part 253 in the middle
And a head-side air intake portion 254 attached to each of the side cylinder heads 206A and 206B.
【００７９】タンク側吸気部２５２の直線的に集合して
配列された各側二次吸気管２４４Ａ・２４４Ｂの各側二
次吸気通路２４６Ａ・２４６Ｂには、夫々３つの各側切
換弁２５６Ａ・２５６Ｂを設けている。各側切換弁２５
６Ａ・２５６Ｂは、１本の切換弁軸２５８に取付けら
れ、Ｖ型エンジン２０２の運転状態に応じて単一の切換
弁駆動機構２６０により開閉駆動される。切換弁駆動機
構２６０は、切換弁アクチュエータ２６２の切換弁ロッ
ド２６４を、切換弁軸２５８の切換弁レバー２６６に連
絡している。The three side switching valves 256A and 256B are respectively provided in the respective side secondary intake passages 246A and 246B of the respective side secondary intake pipes 244A and 244B which are linearly gathered and arranged in the tank side intake portion 252. Is provided. Each side switching valve 25
6A and 256B are attached to one switching valve shaft 258, and are opened / closed by a single switching valve drive mechanism 260 according to the operating state of the V-type engine 202. The switching valve drive mechanism 260 connects the switching valve rod 264 of the switching valve actuator 262 to the switching valve lever 266 of the switching valve shaft 258.
【００８０】このＶ型エンジン２０２は、夫々３本の各
側燃料噴射弁２６８Ａ・２６８Ｂ及び夫々１本の各側デ
リバリパイプ２７０Ａ・２７０Ｂを備えている。前記ヘ
ッド側吸気部２５４の各側一次吸気管部取付フランジ２
５０Ａ・２５０Ｂには、各側燃料噴射弁２６８Ａ・２６
８Ｂの取付けられる各側噴射弁取付部２７２Ａ・２７２
Ｂを設けている。また、前記中間吸気部２５３には、各
側燃料噴射弁２６８Ａ・２６８Ｂの連絡される各側デリ
バリパイプ２７０Ａ・２７０Ｂを一体的に設けている。The V-type engine 202 is provided with three fuel injection valves 268A and 268B on each side and one delivery pipe 270A and 270B on each side. Each side primary intake pipe part mounting flange 2 of the head side intake part 254
50A / 250B has fuel injection valves 268A / 26 on each side.
8B each side injection valve mounting portion 272A · 272
B is provided. Further, the intermediate intake portion 253 is integrally provided with delivery pipes 270A and 270B on the respective sides to which the fuel injection valves 268A and 268B on the respective sides are connected.
【００８１】各側燃料噴射弁２６８Ａ・２６８Ｂは、各
側噴射弁取付部２７２Ａ・２７２Ｂに取付けられる。ま
た、各側デリバリパイプ２７０Ａ・２７０Ｂは、中間吸
気部２５３に一体的に設けられ、各側燃料噴射弁２６８
Ａ・２６８Ｂに夫々連絡される。The fuel injection valves 268A and 268B on each side are attached to the injection valve mounting portions 272A and 272B on each side. The delivery pipes 270A and 270B on each side are integrally provided in the intermediate intake section 253, and the fuel injection valve 268 on each side is provided.
A ・ 268B is contacted respectively.
【００８２】この第３実施例の吸気装置は、前記の如
く、各側吸気マニホルド２３８Ａ・２３８Ｂの各側一次
吸気管２４０Ａ・２４０Ｂ及び各側二次吸気管２４４Ａ
・２４４Ｂを、各側サージタンク２３４Ａ・２３４Ｂを
含むタンク側吸気部２５２と、中間の中間部２５３と、
各側シリンダヘッド２０６Ａ・２０６Ｂに取付けられる
ヘッド側吸気部２５４と、に分割して設けている。As described above, the intake system of the third embodiment includes the primary intake pipes 240A and 240B of the intake manifolds 238A and 238B and the secondary intake pipes 244A of the respective sides.
244B is a tank-side intake section 252 including surge tanks 234A and 234B on each side, an intermediate section 253 in the middle,
Head side air intake portion 254 attached to each side cylinder head 206A, 206B is provided separately.
【００８３】前記中間吸気部２５３には、直線的に集合
して配列された各側二次吸気管２４４Ａ・２４４Ｂの各
側二次吸気通路２４６Ａ・２４６Ｂに各側切換弁２５６
Ａ・２５６Ｂを設け、この直線的に配列した各側切換弁
２５６Ａ・２５６ＢをＶ型エンジン１０２の運転状態に
応じて開閉駆動する単一の切換弁駆動機構２６０を設け
ている。In the intermediate intake section 253, the side switching valves 256 are arranged in the respective side secondary intake passages 246A and 246B of the respective side secondary intake pipes 244A and 244B arranged in a straight line.
A.256B is provided, and a single switching valve drive mechanism 260 is provided for opening and closing the linearly arranged side switching valves 256A and 256B according to the operating state of the V-type engine 102.
【００８４】前記ヘッド側吸気部２５４には、各側噴射
弁取付部２７２Ａ・２７２Ｂを設け、各側燃料噴射弁２
６８Ａ・２６８Ｂを取付けている。前記中間吸気部２５
３には、各側デリバリパイプ２７０Ａ・２７０Ｂを一体
的に設け、各側燃料噴射弁２７２Ａ・２７２Ｂを連絡し
ている。The head side intake portion 254 is provided with injection valve mounting portions 272A and 272B on each side, and the fuel injection valve 2 on each side is attached.
68A and 268B are attached. The intermediate intake section 25
3, delivery pipes 270A and 270B on each side are integrally provided, and fuel injection valves 272A and 272B on each side are connected to each other.
【００８５】このように、この吸気装置は、中間吸気部
２５３に各側デリバリパイプ２７０Ａ・２７０Ｂを一体
的に設けていることにより、従来の各側パイプ取付部を
不要とし得て、各側パイプ取付部により各側吸気管２４
０Ａ・２４０Ｂ及び２４４Ａ・２４４Ｂが形状に制約を
受ける不都合を回避することができる。このため、部品
点数を削減し得て、各側吸気管の形状の設定の自由度を
高め得て、充填効率を向上すべき形状に各側吸気管を形
成することができる。As described above, in this intake device, since the intermediate intake portion 253 is integrally provided with the delivery pipes 270A and 270B on each side, the conventional pipe attaching portion on each side can be dispensed with, and the pipes on each side can be eliminated. Intake pipe 24 on each side depending on the mounting part
It is possible to avoid the inconvenience that 0A / 240B and 244A / 244B are restricted in shape. Therefore, the number of parts can be reduced, the degree of freedom in setting the shape of each side intake pipe can be increased, and each side intake pipe can be formed in a shape that should improve the filling efficiency.
【００８６】また、この吸気装置は、各側吸気マニホル
ド２３８Ａ・２３８Ｂを、タンク側吸気部２５２と中間
部２５３とヘッド側吸気部２５４とに３分割して設けて
いることにより、各部２５２・２５３・２５４を容易に
着脱することができ、各側燃料噴射弁２７２Ａ・２７２
Ｂ及び各側デリバリパイプ２７０Ａ・２７０Ｂや各側吸
気マニホルド２３８Ａ・２３８Ｂ及び各側切換弁２５６
Ａ・２５６Ｂの組付けを容易にすることができる。この
ため、各側燃料噴射弁２７２Ａ・２７２Ｂ及び各側デリ
バリパイプ２７０Ａ・２７０Ｂのみならず、各側吸気マ
ニホルド２３８Ａ・２３８Ｂ及び各側切換弁２５６Ａ・
２５６Ｂの組付性をも向上し得て、出力の向上及びコス
トの低減を果たし得る。In this intake system, the intake manifolds 238A and 238B on the respective sides are divided into the tank-side intake portion 252, the intermediate portion 253, and the head-side intake portion 254, so that the respective portions 252 and 253 are provided. -254 can be easily attached and detached, and each side fuel injection valve 272A, 272
B and delivery pipes 270A and 270B on each side, intake manifolds 238A and 238B on each side, and a switching valve 256 on each side.
The assembly of A · 256B can be facilitated. Therefore, not only each side fuel injection valve 272A / 272B and each side delivery pipe 270A / 270B, but also each side intake manifold 238A / 238B and each side switching valve 256A /
The 256B assembling property can also be improved, and the output can be improved and the cost can be reduced.
【００８７】なお、この実施例における吸気装置は、Ｖ
型エンジン２０２の運転状態に応じて開閉される直線的
に配列した各側切換弁２５６Ａ・１５６Ｂを設けている
ことにより、第１実施例と同様の効果を奏し得る。ま
た、この吸気装置は、第２実施例と同様に各側吸気マニ
ホルド２３８Ａ・２３８Ｂを連絡する連絡管（図示せ
ず）を設け、この連絡管にＶ型エンジン２０２の運転状
態に応じて開閉される遮断弁を設けることもできる。こ
れにより、各側切換弁及び遮断弁を運転状態に応じて開
閉することにより、効果的に吸気慣性及び吸気共鳴を利
用でき、Ｖ型エンジン２０２の全回転域において十分な
トルク向上を果たすことができるThe intake system in this embodiment has a V
By providing the linearly arranged side switching valves 256A and 156B that are opened and closed according to the operating state of the die engine 202, the same effect as that of the first embodiment can be obtained. Further, this intake device is provided with a connecting pipe (not shown) for connecting the intake manifolds 238A and 238B on the respective sides similarly to the second embodiment, and the connecting pipe is opened and closed according to the operating state of the V-type engine 202. It is also possible to provide a shutoff valve. As a result, by opening / closing each side switching valve and the shutoff valve in accordance with the operating state, the intake inertia and the intake resonance can be effectively utilized, and the torque can be sufficiently improved in the entire rotation range of the V-type engine 202. it can
【００８８】[0088]
【発明の効果】このように、発明によれば、Ｖ型エンジ
ンのクランク軸軸線方向に指向させて直線的に集合して
配列して設けた各側二次吸気管の各側二次吸気通路に各
側切換弁を設け、この直線的に配列した各側切換弁をＶ
型エンジンの運転状態に応じて開閉駆動する単一の切換
弁駆動機構を設けたことにより、各側切換弁の開閉駆動
によって各側吸気マニホルドの各側一次・二次吸気管を
運転状態に応じて切換えることができるとともに、単一
の駆動源によって各側切換弁を開閉駆動できる。このた
め、低・中速域のトルクを犠牲にせずに高出力を得るこ
とができ、十分なトルク向上を果たし得て、簡単な構造
により低コストに実施することができる。As described above, according to the present invention, the secondary intake passages on each side of the secondary intake pipes on each side, which are oriented in the axial direction of the crankshaft of the V-type engine and are linearly gathered and arranged. Each side switching valve is installed in the
By providing a single switching valve drive mechanism that opens and closes according to the operating state of the type engine, opening and closing of each side switching valve opens and closes the primary and secondary intake pipes on each side of the intake manifold according to the operating state. It is possible to switch the switching valves on and off, and to open and close each side switching valve by a single drive source. Therefore, a high output can be obtained without sacrificing the torque in the low / medium speed range, a sufficient torque can be achieved, and the cost can be reduced with a simple structure.
【００８９】また、各側吸気マニホルドの直線的に集合
して配列した各側二次吸気管の各側二次吸気通路にＶ型
エンジンの運転状態に応じて開閉駆動される各側切換弁
を設けるとともに、各側サージタンクを連絡する連絡管
の連絡通路にＶ型エンジンの運転状態に応じて開閉駆動
される遮断弁を設けたことにより、各側切換弁及び遮断
弁の開閉駆動によって各側吸気マニホルドの各側一次・
二次吸気管及び連絡管を運転状態に応じて適切に切換え
ることができる。このため、効果的に吸気慣性及び吸気
共鳴を利用でき、全回転域において十分なトルク向上を
果たし得る。Further, in each side secondary intake passage of each side secondary intake pipe linearly assembled and arranged in each side intake manifold, each side switching valve which is driven to open / close according to the operating state of the V-type engine is installed. By providing a shutoff valve that is opened / closed according to the operating state of the V-type engine in the communication passage of the communication pipe that connects the surge tanks on each side, each side is opened / closed by the switching valve and the shutoff valve. Primary of each side of intake manifold
The secondary intake pipe and the connecting pipe can be appropriately switched according to the operating state. Therefore, the intake inertia and the intake resonance can be effectively used, and the torque can be sufficiently improved in the entire rotation range.
【００９０】さらに、Ｖ型エンジンの各側吸気マニホル
ドの各側一次・二次吸気管を、各側サージタンクを含む
タンク側吸気部と中間の中間吸気部と前記各側シリンダ
ヘッドに取付けられるヘッド側吸気部とに３分割して設
け、中間吸気部に各側切換弁を設け、ヘッド側吸気部に
各側噴射弁取付部を設け、中間吸気部に各側デリバリパ
イプを一体的に設けたことにより、従来の各側パイプ取
付部を不要とし得て、各側パイプ取付部により各側吸気
管が形状に制約を受ける不都合を回避し得て、各側燃料
噴射弁及び各側デリバリパイプや各側吸気マニホルド及
び各側切換弁の組付けを容易にすることができる。この
ため、部品点数を削減し得て、各側吸気管の形状の設定
の自由度を高め得て、各側吸気管の充填効率を向上すべ
き形状の形成に有利となし得て、各側燃料噴射弁及び各
側デリバリパイプのみならず各側吸気マニホルド及び各
側切換弁の組付性をも向上し得て、出力の向上及びコス
トの低減を果たし得る。Further, heads for attaching the primary and secondary intake pipes on each side of the intake manifold on each side of the V-type engine to the tank side intake part including the surge tank on each side, the intermediate intake part in the middle, and the cylinder head on each side. It is divided into three parts on the side intake part, each side switching valve is provided on the intermediate intake part, each side injection valve mounting part is provided on the head side intake part, and each side delivery pipe is integrally provided on the intermediate intake part. As a result, it is possible to eliminate the need for the conventional pipe mounting portions on each side, avoid the inconvenience that the intake pipes on each side are restricted in shape by the pipe mounting portions on each side, and to inject fuel on each side and deliver pipes on each side. The intake manifold on each side and the switching valve on each side can be easily assembled. Therefore, the number of parts can be reduced, the degree of freedom in setting the shape of the intake pipe on each side can be increased, and it can be advantageous for forming a shape that should improve the filling efficiency of the intake pipe on each side. Not only the fuel injection valve and the delivery pipe on each side, but also the assemblability of the intake manifold on each side and the switching valve on each side can be improved, and the output can be improved and the cost can be reduced.
【図１】この発明の第１実施例を示すＶ型エンジンの吸
気装置の平面図である。FIG. 1 is a plan view of an intake device for a V-type engine showing a first embodiment of the present invention.
【図２】Ｖ型エンジンの吸気装置の断面図である。FIG. 2 is a cross-sectional view of an intake device for a V-type engine.
【図３】この発明の第２実施例を示すＶ型エンジンの吸
気装置の平面図である。FIG. 3 is a plan view of an intake device for a V-type engine showing a second embodiment of the present invention.
【図４】Ｖ型エンジンの吸気装置の断面図である。FIG. 4 is a cross-sectional view of an intake device for a V-type engine.
【図５】この発明の第３実施例を示すＶ型エンジンの吸
気装置の断面図である。FIG. 5 is a sectional view of an intake device for a V-type engine showing a third embodiment of the present invention.
【図６】タンク側吸気部の断面図である。FIG. 6 is a cross-sectional view of a tank-side intake section.
【図７】中間吸気部の平面図である。FIG. 7 is a plan view of an intermediate intake section.
【図８】中間吸気部の断面図である。FIG. 8 is a sectional view of an intermediate intake section.
【図９】ヘッド側吸気部の断面図である。FIG. 9 is a cross-sectional view of a head side intake section.
【図１０】従来例を示すＶ型エンジンの吸気装置の断面
図である。FIG. 10 is a cross-sectional view of a conventional V-type engine intake device.
２ Ｖ型エンジン ４ シリンダブロック １０Ａ・１０Ｂ 各側シリンダバンク １２ 空間部 １６ クランク軸 １８Ａ・１８Ｂ 各側シリンダ ３４Ａ・３４Ｂ 各側サージタンク ３８Ａ・３８Ｂ 各側吸気マニホルド ４０Ａ・４０Ｂ 各側一次吸気管 ４４Ａ・４４Ｂ 各側二次吸気管 ５２ タンク側吸気部 ５４ ヘッド側吸気部 ５６Ａ・５６Ｂ 各側切換弁 ６０ 切換弁駆動機構 ６８Ａ・６８Ｂ 各側燃料噴射弁 ７０Ａ・７０Ｂ 各側デリバリパイプ 2 V type engine 4 Cylinder block 10A, 10B Each side cylinder bank 12 Space section 16 Crankshaft 18A, 18B Each side cylinder 34A, 34B Each side surge tank 38A, 38B Each side intake manifold 40A, 40B Each side primary intake pipe 44A, 44B Each side secondary intake pipe 52 Tank side intake part 54 Head side intake part 56A / 56B Each side switching valve 60 Switching valve drive mechanism 68A / 68B Each side fuel injection valve 70A / 70B Each side delivery pipe
Claims (3)
方に夫々各側サージタンクを配設し、これら各側サージ
タンクに一端側を連絡されるとともに途中を夫々反対側
の各側シリンダヘッド近傍において湾曲反転されて他端
側を夫々各側シリンダヘッドに取付けられる各側吸気マ
ニホルドの各側一次吸気管を設け、これら各側吸気マニ
ホルドの各側一次吸気管の途中を短縮して連絡する各側
吸気マニホルドの各側二次吸気管を設け、これら各側吸
気マニホルドの各側二次吸気管を前記Ｖ型エンジンのク
ランク軸軸線方向に指向させて直線的に集合して配列し
て設け、前記直線的に集合して配列された各側二次吸気
管の各側二次吸気通路に各側切換弁を設け、これら各側
切換弁を前記Ｖ型エンジンの運転状態に応じて開閉駆動
する単一の切換弁駆動機構を設けたことを特徴とするＶ
型エンジンの吸気装置。1. A surge tank on each side is provided above each cylinder head on each side of a V-type engine, and one end side is connected to each surge tank on each side, and in the vicinity of each cylinder head on the opposite side on the way. Each side primary intake pipe of each side intake manifold which is curved and inverted and the other end side is attached to each side cylinder head respectively is provided, and the middle of each side primary intake pipe of each side intake manifold is shortened and communicated. Each side secondary intake pipe of the side intake manifold is provided, and each side secondary intake pipe of each side intake manifold is arranged in a straight line by being aligned in the direction of the crankshaft axis of the V-type engine, Each side switching valve is provided in each side secondary intake passage of each side secondary intake pipe arranged and arranged linearly, and each side switching valve is opened / closed according to the operating state of the V-type engine. Single switching valve drive V characterized by having a moving mechanism
Type engine intake device.
方に夫々各側サージタンクを配設し、これら各側サージ
タンクに一端側を連絡されるとともに途中を夫々反対側
の各側シリンダヘッド近傍において湾曲反転されて他端
側を夫々各側シリンダヘッドに取付けられる各側吸気マ
ニホルドの各側一次吸気管を設け、これら各側吸気マニ
ホルドの各側一次吸気管の途中を短縮して連絡する各側
吸気マニホルドの各側二次吸気管を設け、これら各側吸
気マニホルドの各側二次吸気管を前記Ｖ型エンジンのク
ランク軸軸線方向に指向させて直線的に集合して配列し
て設け、前記直線的に集合して配列された各側二次吸気
管の各側二次吸気通路に各側切換弁を設け、これら各側
切換弁を前記Ｖ型エンジンの運転状態に応じて開閉駆動
する単一の切換弁駆動機構を設け、前記各側サージタン
クを連絡する連絡管を設け、この連絡管の連絡通路に遮
断弁を設け、この遮断弁を前記Ｖ型エンジンの運転状態
に応じて開閉駆動する遮断弁駆動機構を設けたたことを
特徴とするＶ型エンジンの吸気装置。2. A surge tank on each side is provided above each cylinder head on each side of a V-type engine, and one end side is connected to each surge tank on each side, and the vicinity of each cylinder head on the opposite side on the way. Each side primary intake pipe of each side intake manifold which is curved and inverted and the other end side is attached to each side cylinder head respectively is provided, and the middle of each side primary intake pipe of each side intake manifold is shortened and communicated. Each side secondary intake pipe of the side intake manifold is provided, and each side secondary intake pipe of each side intake manifold is arranged in a straight line by being aligned in the direction of the crankshaft axis of the V-type engine, Each side switching valve is provided in each side secondary intake passage of each side secondary intake pipe arranged and arranged linearly, and each side switching valve is opened / closed according to the operating state of the V-type engine. Single switching valve drive A drive mechanism is provided, a connecting pipe for connecting the surge tanks on each side is provided, and a shutoff valve is provided in a communication passage of the connecting pipe, and the shutoff valve is opened and closed according to the operating state of the V-type engine. An intake device for a V-type engine, which is provided with a mechanism.
方に夫々各側サージタンクを配設し、これら各側サージ
タンクに一端側を連絡されるとともに途中を夫々反対側
の各側シリンダヘッド近傍において湾曲反転されて他端
側を夫々各側シリンダヘッドに取付けられる各側吸気マ
ニホルドの各側一次吸気管を設け、これら各側吸気マニ
ホルドの各側一次吸気管の途中を短縮して連絡する各側
吸気マニホルドの各側二次吸気管を設け、これら各側吸
気マニホルドの各側二次吸気管を前記Ｖ型エンジンのク
ランク軸軸線方向に指向させて直線的に集合して配列し
て設け、前記各側吸気マニホルドの各側一次・二次吸気
管を前記シリンダブロックの各側シリンダ軸線を２分し
て描出される中間軸線に直交する平面により前記各側サ
ージタンクを含むタンク側吸気部と中間の中間吸気部と
前記各側シリンダヘッドに取付けられるヘッド側吸気部
とに分割して設け、前記中間吸気部の直線的に集合して
配列された各側二次吸気管の各側二次吸気通路に各側切
換弁を設け、これら各側切換弁を前記Ｖ型エンジンの運
転状態に応じて開閉駆動する単一の切換弁駆動機構を設
け、前記ヘッド側吸気部に各側燃料噴射弁の取付けられ
る各側噴射弁取付部を設け、前記中間吸気部に各側燃料
噴射弁の連絡される各側デリバリパイプを一体的に設け
たことを特徴とするＶ型エンジンの吸気装置。3. A surge tank on each side is provided above each cylinder head on each side of a V-type engine, and one end side is connected to each surge tank on each side, and in the vicinity of each cylinder head on the opposite side on the way. Each side primary intake pipe of each side intake manifold which is curved and inverted and the other end side is attached to each side cylinder head respectively is provided, and the middle of each side primary intake pipe of each side intake manifold is shortened and communicated. Each side secondary intake pipe of the side intake manifold is provided, and each side secondary intake pipe of each side intake manifold is arranged in a straight line by being aligned in the direction of the crankshaft axis of the V-type engine, Each side primary / secondary intake pipe of each side intake manifold is provided with a surge tank on each side by a plane orthogonal to an intermediate axis drawn by dividing the cylinder axis of each side of the cylinder block into two. Secondary intake pipe arranged on each side of the intermediate intake section, the intermediate intermediate intake section, and the head side intake section attached to each of the cylinder heads. Each side secondary intake passage is provided with each side switching valve, and each side switching valve is provided with a single switching valve drive mechanism that opens and closes in accordance with the operating state of the V-type engine, and the head side intake portion is provided. A V-type engine is characterized in that each side injection valve attachment part to which each side fuel injection valve is attached is provided, and each side delivery pipe to which each side fuel injection valve is connected is integrally provided in the intermediate intake part. Inhaler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26800193A JP3252568B2 (en) | 1993-09-30 | 1993-09-30 | V-type engine intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26800193A JP3252568B2 (en) | 1993-09-30 | 1993-09-30 | V-type engine intake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07102980A true JPH07102980A (en) | 1995-04-18 |
| JP3252568B2 JP3252568B2 (en) | 2002-02-04 |
Family
ID=17452538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26800193A Expired - Fee Related JP3252568B2 (en) | 1993-09-30 | 1993-09-30 | V-type engine intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3252568B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998054454A1 (en) * | 1997-05-26 | 1998-12-03 | Nissan Motor Co., Ltd. | Linkage device of internal combustion engine |
-
1993
- 1993-09-30 JP JP26800193A patent/JP3252568B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998054454A1 (en) * | 1997-05-26 | 1998-12-03 | Nissan Motor Co., Ltd. | Linkage device of internal combustion engine |
| US6293247B1 (en) | 1997-05-26 | 2001-09-25 | Nissan Motor Co., Ltd. | Linkage device of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3252568B2 (en) | 2002-02-04 |
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|---|---|---|---|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313532 |
|
| R350 | Written notification of registration of transfer |
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| FPAY | Renewal fee payment (prs date is renewal date of database) |
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| FPAY | Renewal fee payment (prs date is renewal date of database) |
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| FPAY | Renewal fee payment (prs date is renewal date of database) |
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| FPAY | Renewal fee payment (prs date is renewal date of database) |
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| LAPS | Cancellation because of no payment of annual fees |