JPH0122466B2 - - Google Patents
Info
- Publication number
- JPH0122466B2 JPH0122466B2 JP22748484A JP22748484A JPH0122466B2 JP H0122466 B2 JPH0122466 B2 JP H0122466B2 JP 22748484 A JP22748484 A JP 22748484A JP 22748484 A JP22748484 A JP 22748484A JP H0122466 B2 JPH0122466 B2 JP H0122466B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- fan housing
- cooling
- wall
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/06—Guiding or ducting air to, or from, ducted fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
- F02M35/06—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices combined or associated with engine's cooling blower or fan, or with flywheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1205—Flow throttling or guiding
- F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/14—Combined air cleaners and silencers
-
- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、１対にシリンダをＶ形に配列すると
共に、フアンハウジング内に冷却風用遠心フアン
を備えたＶ形エンジンの吸気装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an intake system for a V-type engine, which includes a pair of cylinders arranged in a V-shape and a centrifugal fan for cooling air inside a fan housing.
（従来技術及びその問題点）
従来例としては例えば特開昭53−43118のよう
な装置が開発されている。(Prior art and its problems) As a conventional example, a device such as that disclosed in Japanese Patent Application Laid-Open No. 53-43118 has been developed.
ところが上記従来装置においては、エアクリー
ナの空気取入れ口は直接外部に開口している。そ
のために吸気騒音が大きく、またダストや枯れ草
等が吸込まれやすいので、エレメントの寿命が短
く、エアクリーナのメンテナンスに手間がかか
る。 However, in the conventional device described above, the air intake port of the air cleaner opens directly to the outside. As a result, the intake noise is loud and dust, dead grass, etc. are easily sucked in, which shortens the life of the element and requires time and effort to maintain the air cleaner.
（発明の目的）
本願の第１、第２、第３発明の目的は、吸気騒
音の低減と、防塵性能の向上によるエアクリーナ
のメンテナンスの容易化である。(Objects of the Invention) The objects of the first, second, and third inventions of the present application are to reduce intake noise and to facilitate maintenance of an air cleaner by improving dustproof performance.
（目的を達成するための手段）
上記目的を達成するために本願第１、第２、第
３発明は、遠心フアンによつて励起される冷却風
を各シリンダ冷却用に分離する分離壁を、フアン
ハウジング内にスパイラル状に設け、エアクリー
ナの空気取入れ口をフアンハウジング内に配置し
ている。(Means for Achieving the Object) In order to achieve the above object, the first, second, and third inventions of the present application include a separation wall that separates cooling air excited by a centrifugal fan for cooling each cylinder. It is provided in a spiral shape inside the fan housing, and the air intake port of the air cleaner is located inside the fan housing.
また第１発明においては、防塵効果を一層向上
させるために上記構造に加え、エアクリーナの空
気取入れ口を分離壁の外周側壁面に沿つてあるい
は近接させて配置している。 Further, in the first invention, in addition to the above structure, the air intake port of the air cleaner is arranged along or close to the outer peripheral wall surface of the separation wall in order to further improve the dustproof effect.
また第２発明においては、エンジンのコンパク
ト化を図るためにエアクリーナの空気取入れ口を
Ｖバンク内に配置している。 Further, in the second invention, the air intake port of the air cleaner is arranged within the V bank in order to make the engine more compact.
また第３発明においては、防塵効果及び吸気騒
音低減効果を一層向上させるために、Ｖバンク内
に、フアンハウジング外壁から分離壁に向かつて
延びる仕切り壁とフアンハウジング外壁と分離壁
とで空気室を形成し、該空気室内にエアクリーナ
の空気取入れ口を位置させている。 In addition, in the third invention, in order to further improve the dust prevention effect and the intake noise reduction effect, an air chamber is formed in the V bank by a partition wall extending from the fan housing outer wall toward the separation wall, the fan housing outer wall, and the separation wall. The air intake port of the air cleaner is located within the air chamber.
（実施例）
第１図は第１、第２、第３発明を適用した強制
空冷式Ｖ形エンジンの水平断面図（第２図の−
断面図）であり、この第１図において、１対の
第１、第２シリンダ１，２は互いに略90゜の位相
差でＶ形に配列され、それぞれシリンダヘツド２
２、２３及びロツカーカバー１ａ，２ａ等を備え
ている。両シリンダ１，２間で形成されているＶ
バンクＢに対してクランク軸３の回転方向Ｒの後
方側が第１シリンダ１であり、前方側が第２シリ
ンダ２である。共通クランク軸３は垂直に配置さ
れると共に、その上端部に冷却用遠心フアン５を
一体的に備えている。両シリンダ１，２及びクラ
ンクケース４（第２図）の上側には、フアン５を
覆う冷却用フアンハウジング６が設けられてお
り、ハウジング６の上面中央部にはクランク軸３
と同軸心の冷却風取入れ口（仮想線）８が開口し
ている。(Example) Fig. 1 is a horizontal sectional view of a forced air-cooled V-type engine to which the first, second, and third inventions are applied (-
In FIG. 1, a pair of first and second cylinders 1 and 2 are arranged in a V shape with a phase difference of about 90 degrees, and each cylinder head 2
2, 23, rocker covers 1a, 2a, etc. V formed between both cylinders 1 and 2
The first cylinder 1 is on the rear side of the bank B in the rotational direction R of the crankshaft 3, and the second cylinder 2 is on the front side. The common crankshaft 3 is arranged vertically and is integrally provided with a cooling centrifugal fan 5 at its upper end. A cooling fan housing 6 that covers the fan 5 is provided above both cylinders 1 and 2 and the crankcase 4 (FIG. 2), and a crankshaft 3 is provided at the center of the upper surface of the housing 6.
A cooling air intake (imaginary line) 8 of the coaxial core is open.
フアンハウジング６内には各シリンダ１，２用
に、スパイラル状の計２個の第１、第２分離壁
９，１０が設けられている。第１シリンダ１へ冷
却風を導くための第１分離壁９は、その導風始端
部９ａが第２シリンダ２のシリンダ中心線O′と
同一位相の位置に設けられている。第１分離壁９
はその始端部９ａから、クランク軸心を中心に拡
径しながらフアン回転方向Ｒの前方側へと旋回
し、第１シリンダ１まで至つている。第２シリン
ダ２へ冷却風を導くための第２分離壁１０は、そ
の導風始端部１０ａが第１分離壁９の導風始端部
９ａに対してクランク軸回り180゜の位相差の位置
に、かつ第１分離壁９の導風始端部９ａと同一円
周上に設けられている。第２分離壁１０はその始
端部１０ａから、クランク軸心を中心に拡径しな
がらフアン回転方向の前方側へと旋回し、第２シ
リンダ２まで至つている。 Inside the fan housing 6, a total of two spiral-shaped first and second separation walls 9, 10 are provided for each cylinder 1, 2. The first separation wall 9 for guiding cooling air to the first cylinder 1 is provided so that its air-guiding starting end 9a is in the same phase as the cylinder center line O' of the second cylinder 2. First separation wall 9
The fan rotates from its starting end 9a toward the front side in the fan rotation direction R while expanding its diameter around the crankshaft center, and reaches the first cylinder 1. The second separation wall 10 for guiding the cooling air to the second cylinder 2 has its air guide starting end 10a positioned at a phase difference of 180° around the crankshaft with respect to the air guide starting end 9a of the first separation wall 9. , and is provided on the same circumference as the air guide starting end 9a of the first separation wall 9. The second separation wall 10 turns from its starting end 10 a toward the front side in the fan rotation direction while expanding its diameter around the crankshaft center, and reaches the second cylinder 2 .
エアクリーナ１１は長円形状に形成されると共
に、上方から見て両ロツカーカバー１ａ，２ａ間
に配置され、また両シリンダ１，２の２等分線Ｌ
に対して概ね直交している。エアクリーナ１１の
吸入空気取入れ口１２は、エアクリーナ１１のク
ランク軸３側の側面に形成されると共にＶバンク
Ｂ内に位置し、ハウジング６の外壁６ａを貫通し
てハウジング６内へ延び、ハウジング６内で開口
している。空気取入れ口１２の先端開口位置は第
２分離壁１０の外周側壁面に近接した位置であ
る。 The air cleaner 11 is formed in an elliptical shape, and is arranged between the two rocker covers 1a and 2a when viewed from above, and is also located along the bisector line L of both the cylinders 1 and 2.
It is almost perpendicular to . The intake air intake port 12 of the air cleaner 11 is formed on the side surface of the air cleaner 11 on the crankshaft 3 side, is located in the V bank B, penetrates the outer wall 6a of the housing 6, extends into the housing 6, and extends into the housing 6. It is open. The opening position of the tip of the air intake port 12 is a position close to the outer peripheral side wall surface of the second separation wall 10.
第１シリンダ１に対してクランク軸回転方向前
方側のハウジング６内部分には、ハウジング外壁
６ａから第２分離壁１０に向かつて延びる仕切り
壁１５が設けられている。この仕切り壁１５と、
ＶバンクＢ内の外壁６ａと、ＶバンクＢ内の第２
分離壁１０部分によつてハウジング６内に空気室
１６を形成しており、該空気室１６内にエアクリ
ーナ１１の空気取入れ口１２を収納している。仕
切り壁１５の先端部と第２分離壁１０の間は、空
気通路１８を確保するために適当な間隔が隔てら
れている。空気室１６の下側（第１図の裏面側）
には、空気室１６の断面形状と略同一形状（直角
３角形状）の仕切り板２０が設けられている。 A partition wall 15 extending from the housing outer wall 6a toward the second separation wall 10 is provided in the inner portion of the housing 6 on the front side in the crankshaft rotational direction with respect to the first cylinder 1. This partition wall 15 and
The outer wall 6a in V bank B and the second wall in V bank B
An air chamber 16 is formed within the housing 6 by the separation wall 10, and an air intake port 12 of the air cleaner 11 is accommodated within the air chamber 16. An appropriate distance is provided between the tip of the partition wall 15 and the second separation wall 10 to ensure an air passage 18. Lower side of air chamber 16 (back side in Figure 1)
A partition plate 20 having substantially the same cross-sectional shape (right triangular shape) as the air chamber 16 is provided.
２１は吸気マニホールドであつて、２又状に形
成されると共に両先端部が各シリンダヘツド２
２、２３の吸気通路に接続している。 Reference numeral 21 denotes an intake manifold, which is formed into a bifurcated shape and has both ends connected to each cylinder head 2.
It is connected to intake passages 2 and 23.
第２図において、第２シリンダ２には上下方向
に延びる冷却用フード２５が被せられており、フ
ード２５の上端部はハウジング６内に連通し、下
端部は開口している。図示していないが第１シリ
ンダ１にも同様の冷却用フードが被せられてい
る。 In FIG. 2, the second cylinder 2 is covered with a cooling hood 25 that extends in the vertical direction.The upper end of the hood 25 communicates with the inside of the housing 6, and the lower end is open. Although not shown, the first cylinder 1 is also covered with a similar cooling hood.
エアクリーナ１１は取出し自在なエレメント２
６を収納すると共に、下方突出状の出口パイプ部
２８を備えている。エアクリーナ１１の下側には
キヤブレター２９が配置されており、キヤブレタ
ー２９は上記出口パイプ部２８に接続している。 The air cleaner 11 is a removable element 2
6 and is provided with a downwardly projecting outlet pipe portion 28. A carburetor 29 is arranged below the air cleaner 11, and the carburetor 29 is connected to the outlet pipe section 28.
キヤブレター２９の出口部は吸気マニホールド
２１の中央入口部に接続している。３０はエアク
リーナカバーであつて、ナツト３１等によりエア
クリーナ１１に着脱自在に取付けられている。 The outlet of the carburetor 29 is connected to the central inlet of the intake manifold 21. Reference numeral 30 denotes an air cleaner cover, which is detachably attached to the air cleaner 11 with a nut 31 or the like.
（作用）
冷却風取入れ口８からハウジング６内に吸込ま
れる空気は、遠心フアン５により加圧され、両分
離壁９，１０により両シリンダ用に分離され、そ
れぞれ分離壁９，１０の内周面にガイドされて旋
回する。(Function) Air sucked into the housing 6 from the cooling air intake 8 is pressurized by the centrifugal fan 5, separated by both separation walls 9 and 10 for use in both cylinders, and is separated from the inner periphery of the separation walls 9 and 10, respectively. It turns by being guided by the surface.
第１分離壁９にガイドされて第１シリンダ１の
上部に至つた空気は、その一部分が空気通路１８
を介して空気室１６に入り、空気取入れ口１２か
らエアクリーナ１１に入る。この場合、ハウジン
グ６内で冷却風が旋回していることにより、冷却
風内のダストはいわゆるサイクロン効果によつて
半径方向外方側へ分離されている。従つて空気通
路１８から空気室１６へのダストの侵入量は大幅
に低減されている。しかも空気取入れ口１２を第
２分離壁１０の外周側壁面に近接させているの
で、たとえ空気室１６にダストが侵入しても、前
述のサイクロン効果により、空気取入れ口１２に
侵入する量は極めて少ない。 A portion of the air that has been guided by the first separation wall 9 and reached the upper part of the first cylinder 1 is in the air passage 18.
The air enters the air chamber 16 through the air intake port 12 and enters the air cleaner 11 through the air intake port 12. In this case, since the cooling air is swirling within the housing 6, the dust in the cooling air is separated radially outward by a so-called cyclone effect. Therefore, the amount of dust entering the air chamber 16 from the air passage 18 is significantly reduced. Moreover, since the air intake port 12 is located close to the outer peripheral wall surface of the second separation wall 10, even if dust enters the air chamber 16, the amount that enters the air intake port 12 is extremely small due to the aforementioned cyclone effect. few.
エアクリーナ１１内に入つた空気は、エレメン
ト２６を通過して出口パイプ部２８からキヤブレ
ター２９内に入り、燃料油と混合した後、吸気マ
ニホールド２１等を介して各シリンダ１，２内へ
と供給される。 The air that has entered the air cleaner 11 passes through the element 26, enters the carburetor 29 from the outlet pipe section 28, mixes with fuel oil, and is then supplied into each cylinder 1, 2 via the intake manifold 21, etc. Ru.
なお第１シリンダ１の上部に至つた空気の残り
の部分は下方の冷却用フードへと流れ、第１シリ
ンダ１を冷却した後、下方へと放出される。 Note that the remaining portion of the air that has reached the upper part of the first cylinder 1 flows to the cooling hood below, cools the first cylinder 1, and is then discharged downward.
また第２分離壁１０にガイドされて第２シリン
ダ２の上部に至つた空気は、下方の冷却用フード
２５へと流れ、第２シリンダ２を冷却した後、下
方へと放出される。 Further, the air guided by the second separation wall 10 and reaching the upper part of the second cylinder 2 flows to the cooling hood 25 below, cools the second cylinder 2, and is then discharged downward.
（その他の実施例）
(1) フアンハウジング冷却風取入れ口に回転スク
リーンを設け、枯れ草等に対する防塵効果をよ
り一層向上させるようにしてもよい。(Other Examples) (1) A rotating screen may be provided at the cooling air intake of the fan housing to further improve the dust-proofing effect against dead grass and the like.
(2) クランク軸が水平な横軸Ｖ形エンジンに本発
明を採用することもできる。(2) The present invention can also be applied to a horizontal-shaft V-type engine with a horizontal crankshaft.
(3) 第１発明としては、エレメントの空気取入れ
口を分離に沿うように開口させてもよい。即ち
空気取入れ口を分離壁に沿つて風上の方に向け
るのである。(3) As the first invention, the air intake port of the element may be opened along the separation. That is, the air intake is oriented upwind along the separation wall.
（発明の効果）
以上説明したように本願第１、第２、第３発明
は、１対のシリンダをＶ形に配列すると共に、フ
アンハウジング内に冷却風用遠心フアンを備えた
Ｖ形エンジンの吸気装置において、エアクリーナ
の空気取入れ口をフアンハウジング内に配置して
いるので、従来のように空気取入れ口を直接外気
に開口する場合に比べ、吸気騒音を大幅に低減す
ることができる。またエアクリーナへのダストの
侵入量を減らすことができ、エアクリーナのエレ
メントの寿命が延びると共にエアクリーナのメン
テナンスが容易になる。(Effects of the Invention) As explained above, the first, second, and third inventions of the present application provide a V-type engine in which a pair of cylinders are arranged in a V-shape and a centrifugal fan for cooling air is provided in the fan housing. In the intake device, since the air intake of the air cleaner is arranged inside the fan housing, intake noise can be significantly reduced compared to the conventional case where the air intake is opened directly to the outside air. Furthermore, the amount of dust entering the air cleaner can be reduced, the life of the air cleaner element can be extended, and maintenance of the air cleaner can be facilitated.
第１発明においては、分離壁をフアンハウジン
グ内にスパイラル状に設け、旋回する冷却風から
サイクロン効果によりダストを半径方向外方へ分
離するようにしたことと、エアクリーナの空気取
入れ口を分離壁の外周側壁面に沿つてあるいは近
接させて配置したことにより、空気取入れ口に侵
入するダストの量をより一層低減することができ
る。 In the first invention, the separation wall is provided in a spiral shape inside the fan housing, and the dust is separated radially outward from the swirling cooling air by a cyclone effect, and the air intake of the air cleaner is connected to the separation wall. By arranging it along or close to the outer peripheral wall surface, the amount of dust entering the air intake port can be further reduced.
第２発明においては、空気取入れ口をＶバンク
内に位置させるようにしているので、エンジンの
コンパクト性を保つことができる。 In the second aspect of the invention, since the air intake port is located within the V bank, the compactness of the engine can be maintained.
第３発明においては、フアンハウジング内に空
気室を形成し、該空気室内にエアクリーナの空気
取入れ口を位置させるようにしているので、吸気
騒音低減効果及び防塵効果が一層向上する。 In the third invention, an air chamber is formed within the fan housing, and the air intake port of the air cleaner is located within the air chamber, so that the intake noise reduction effect and the dustproof effect are further improved.
第１図は本願の第１、第２、第３発明を適用し
たＶ型たエンジンの水平断面図（第２図の−
断面図）、第２図は第１図の−断面図である。
１，２……シリンダ、５……冷却用遠心フア
ン、６……フアンハウジング、６ａ……フアンハ
ウジング外壁、９……分離壁、１２……空気取入
れ口、１５……仕切り壁、１６……空気室。
FIG. 1 is a horizontal cross-sectional view of a V-type engine to which the first, second, and third inventions of the present application are applied (-
2 is a cross-sectional view of FIG. 1. 1, 2... Cylinder, 5... Centrifugal fan for cooling, 6... Fan housing, 6a... Fan housing outer wall, 9... Separation wall, 12... Air intake, 15... Partition wall, 16... air chamber.
Claims (1)
アンハウジング内に冷却風用遠心フアンを備えた
Ｖ形エンジンの吸気装置において、遠心フアンに
よつて励起される冷却風を各シリンダ冷却用に分
離する分離壁を、フアンハウジング内にスパイラ
ル状に設け、エアクリーナの空気取り入れ口をフ
アンハウジング内に配置すると共に、上記取入れ
口を上記分離壁の外周側壁面に沿つてあるいは近
接させて配置したことを特徴とするＶ形エンジン
の吸気装置。 ２ １対のシリンダをＶ形に配列すると共に、フ
アンハウジング内に冷却風用遠心フアンを備えた
Ｖ形エンジンの吸気装置において、遠心フアンに
よつて励起される冷却風を各シリンダ冷却用に分
離する分離壁を、フアンハウジング内にスパイラ
ル状に設け、エアクリーナの空気取入れ口をフア
ンハウジング内に配置すると共に、上記取入れ口
を両シリンダ間で形成されるＶバンク内に位置さ
せたことを特徴とするＶ形エンジンの吸気装置。 ３ １対のシリンダをＶ形に配置すると共に、フ
アンハウジング内に冷却風用遠心フアンを備えた
Ｖ形エンジンの吸気装置において、遠心フアンに
よつて励起される冷却風を各シリンダ冷却用に分
離する分離壁を、フアンハウジング内にスパイラ
ル状に設け、エアクリーナの空気取入れ口をフア
ンハウジング内に位置し、Ｖバンク内に、フアン
ハウジング外壁から分離壁に向かつて延びる仕切
り壁とフアンハウジング外壁と分離壁とで空気室
を形成し、該空気室内にエアクリーナの空気取入
れ口を位置させたことを特徴とするＶ形エンジン
の吸気装置。[Claims] 1. In an intake system for a V-type engine which has a pair of cylinders arranged in a V-shape and is equipped with a centrifugal fan for cooling air in a fan housing, the cooling air excited by the centrifugal fan is A separation wall that separates each cylinder for cooling is provided in a spiral shape within the fan housing, and an air intake port of the air cleaner is arranged within the fan housing, and the intake port is arranged along or near the outer peripheral wall surface of the separation wall. An intake system for a V-type engine, characterized in that it is arranged in a straight line. 2. In a V-type engine intake system in which a pair of cylinders are arranged in a V-shape and a centrifugal fan for cooling air is provided in the fan housing, the cooling air excited by the centrifugal fan is separated for cooling each cylinder. A separating wall is provided in a spiral shape within the fan housing, an air intake port of the air cleaner is located within the fan housing, and the intake port is located within a V-bank formed between both cylinders. V-type engine intake system. 3 In an intake system for a V-type engine in which a pair of cylinders are arranged in a V-shape and a centrifugal fan for cooling air is provided in the fan housing, the cooling air excited by the centrifugal fan is separated for cooling each cylinder. A separation wall is provided in a spiral shape inside the fan housing, the air intake of the air cleaner is located inside the fan housing, and a partition wall extending from the outside wall of the fan housing toward the separation wall is separated from the outside wall of the fan housing within the V bank. An intake device for a V-type engine, characterized in that an air chamber is formed with a wall, and an air intake port of an air cleaner is located in the air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59227484A JPS61106968A (en) | 1984-10-29 | 1984-10-29 | Intake device of v-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59227484A JPS61106968A (en) | 1984-10-29 | 1984-10-29 | Intake device of v-engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61106968A JPS61106968A (en) | 1986-05-24 |
| JPH0122466B2 true JPH0122466B2 (en) | 1989-04-26 |
Family
ID=16861604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59227484A Granted JPS61106968A (en) | 1984-10-29 | 1984-10-29 | Intake device of v-engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61106968A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602004032224D1 (en) | 2003-03-11 | 2011-05-26 | Yanmar Co Ltd | TOP ENGINE STRUCTURE |
| JP2004270640A (en) | 2003-03-11 | 2004-09-30 | Yanmar Co Ltd | Engine upper structure |
| US7958855B2 (en) | 2008-05-30 | 2011-06-14 | Kawasaki Jukogyo Kabushiki Kaisha | Air-cooled V-type combustion engine |
-
1984
- 1984-10-29 JP JP59227484A patent/JPS61106968A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61106968A (en) | 1986-05-24 |
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