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JP2006069459A - Internal combustion engine - Google Patents

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Publication number
JP2006069459A
JP2006069459A JP2004258051A JP2004258051A JP2006069459A JP 2006069459 A JP2006069459 A JP 2006069459A JP 2004258051 A JP2004258051 A JP 2004258051A JP 2004258051 A JP2004258051 A JP 2004258051A JP 2006069459 A JP2006069459 A JP 2006069459A
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Japan
Prior art keywords
combustion engine
internal combustion
supply device
fuel supply
fuel
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Pending
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JP2004258051A
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Japanese (ja)
Inventor
Mitsuo Nakagawa
光雄 中川
Toichiro Hikichi
東一郎 引地
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2004258051A priority Critical patent/JP2006069459A/en
Priority to TW094120403A priority patent/TWI267467B/en
Priority to CN2005100790400A priority patent/CN1746481B/en
Priority to KR1020050060707A priority patent/KR100754573B1/en
Priority to BRPI0503737-9A priority patent/BRPI0503737A/en
Publication of JP2006069459A publication Critical patent/JP2006069459A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J37/00—Arrangements of fuel supply lines, taps, or the like, on motor cycles or engine-assisted cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal-combustion engine for a motorcycle capable of preventing a fuel supply device from being heated by the heat emitted from a cylinder block etc. and enhancing the layout balance around the body of the engine. <P>SOLUTION: The internal-combustion engine of fuel injection type in which the cylinder axis is arranged upward facing alongside a plumb plane in the fore-and-aft direction passing the body center of the motorcycle, is structured so that the fuel supply device 19 and a suction system device 23 are installed in distribution to the left and right of a part behind the cylinder block 17b and a cylinder head 17c while the body center surface 1a is pinched by them 19 and 23. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は自動二輪車の内燃機関、特に燃料噴射型内燃機関の燃料供給装置の配置に関する。   The present invention relates to an arrangement of a fuel supply device for an internal combustion engine of a motorcycle, particularly a fuel injection type internal combustion engine.

従来の自動二輪車用内燃機関においては、燃料ポンプを含む燃料供給装置がシリンダブロックの後方かつ車体中央部に配置されていた（例えば特許文献１参照。）。また、多気筒機関の場合、燃料供給装置はシリンダブロックの後方でかつ内燃機関の横幅の範囲内に配置されていた（例えば特許文献２参照。）。   In conventional internal combustion engines for motorcycles, a fuel supply device including a fuel pump is disposed behind the cylinder block and at the center of the vehicle body (see, for example, Patent Document 1). In the case of a multi-cylinder engine, the fuel supply device is disposed behind the cylinder block and within the range of the lateral width of the internal combustion engine (for example, see Patent Document 2).

特公昭６３−１２３２号公報Japanese Patent Publication No. 63-1232 特開２０００−２３８６８０号公報JP 2000-238680 A

従来の自動二輪車用内燃機関においては、燃料供給装置がシリンダブロックの後方かつ車体の中央部または機関の横幅の範囲内に配置されていたので、走行時にシリンダブロック等から発散される熱が直接燃料供給装置に当たるのを防ぐためには、遮熱板などを設ける必要があった。   In conventional internal combustion engines for motorcycles, the fuel supply device is arranged behind the cylinder block and in the center of the vehicle body or within the lateral width of the engine. In order to prevent hitting the supply device, it was necessary to provide a heat shield.

また、燃料供給装置と内燃機関との位置が離れるため、燃料ポンプからの高圧配管が必要であった。   Further, since the fuel supply device and the internal combustion engine are separated from each other, a high-pressure pipe from the fuel pump is necessary.

前記従来の課題を解決するために、請求項１記載の発明は、自動二輪車の車体中心を通る前後方向鉛直面に沿ってシリンダ軸線を上向きにして配置された燃料噴射型の内燃機関であって、上記内燃機関の燃料供給装置が上記内燃機関のシリンダブロックおよびシリンダヘッドの後方かつ側方に配置されたことを特徴とするものである。   In order to solve the above-mentioned conventional problems, the invention according to claim 1 is a fuel injection type internal combustion engine arranged with a cylinder axis facing upward along a vertical plane in the front-rear direction passing through the center of the motorcycle body. The fuel supply device for the internal combustion engine is arranged behind and on the side of the cylinder block and the cylinder head of the internal combustion engine.

次に請求項２記載の発明は、請求項１記載の発明において、上記内燃機関の燃料供給装置と吸気系装置とが、上記シリンダブロックおよびシリンダヘッドの後方かつ左右両側方に振り分けて、配置されたことを特徴とするものである。   Next, the invention according to claim 2 is the invention according to claim 1, wherein the fuel supply device and the intake system device of the internal combustion engine are arranged in such a manner as to be distributed to the rear of the cylinder block and the cylinder head and to the left and right sides. It is characterized by that.

また請求項３記載の発明は、請求項２記載の発明において、上記吸気系装置がスロットルボディおよび燃料噴射弁を含むことを特徴とするものである。   The invention according to claim 3 is the invention according to claim 2, wherein the intake system device includes a throttle body and a fuel injection valve.

請求項１記載の発明は、燃料供給装置が内燃機関のシリンダブロックおよびシリンダヘッドの後方かつ側方に配置されているので、燃料供給装置には、シリンダブロックやシリンダヘッドから発散された熱が当たることなく、走行風が直接当たってこれを冷却する。したがって、特別な遮熱対策は不要となり、構造が簡単になる。また、レイアウトも簡潔になる。さらに、前後方向のスペースが有効に活用できるので、燃料供給装置をシリンダブロックに近接して配置でき、高圧配管が省略できる。   In the first aspect of the invention, since the fuel supply device is disposed behind and to the side of the cylinder block and the cylinder head of the internal combustion engine, the heat supplied from the cylinder block and the cylinder head is applied to the fuel supply device. Without being hit, the running wind directly hits and cools it. Therefore, no special heat shield measures are required and the structure is simplified. In addition, the layout is simplified. Furthermore, since the space in the front-rear direction can be used effectively, the fuel supply device can be arranged close to the cylinder block, and high-pressure piping can be omitted.

次に、請求項２および請求項３記載の発明では、燃料供給装置と吸気系装置とが、上記シリンダブロックおよびシリンダヘッドの後方かつ左右両側方に振り分けて、配置されており、またその吸気系装置がスロットルボディおよび燃料噴射弁を含むので、スロットルボディ、燃料噴射弁等の吸気系装置と燃料ポンプ等の燃料供給装置とが車体中心面を挟んで両側に配置され、内燃機関本体周辺のレイアウトバランスがよくなる。   Next, in the second and third aspects of the present invention, the fuel supply device and the intake system device are arranged rearranged on the left and right sides of the cylinder block and the cylinder head, and the intake system thereof. Since the device includes a throttle body and a fuel injection valve, an intake system device such as a throttle body and a fuel injection valve and a fuel supply device such as a fuel pump are disposed on both sides of the vehicle body center plane, and the layout around the internal combustion engine body Balance is improved.

図１は本発明の内燃機関を搭載した自動二輪車１の一実施形態を示す側面図である。   FIG. 1 is a side view showing an embodiment of a motorcycle 1 equipped with an internal combustion engine of the present invention.

この自動二輪車１においては、メインフレーム２の前端のヘッドチューブ３を介してフロントフォーク４が操向自在に支持されており、このフロントフォーク４の下端に前輪５が回転自在に支持されている。メインフレーム２の前端からは、ダウンフレーム６が後下方に延びており、そのダウンフレーム６の下端からアンダフレーム７が後方に延びている。そしてそのアンダフレーム７の後端のブラケット７ａは、上記メインフレーム２の中央部および後部と、それぞれセンタフレーム８およびリヤフレーム９により、連結されている。 In the motorcycle 1, a front fork 4 is supported so as to be steerable via a head tube 3 at the front end of the main frame 2, and a front wheel 5 is rotatably supported at the lower end of the front fork 4. A down frame 6 extends rearward and downward from the front end of the main frame 2, and an underframe 7 extends rearward from the lower end of the down frame 6. The bracket 7a at the rear end of the under frame 7 is connected to the center portion and the rear portion of the main frame 2 by the center frame 8 and the rear frame 9, respectively.

メインフレーム２上の前部には、燃料タンク10が搭載され、その後方にはシート11が設けられている。12はハンドルを示す。またブラケット７ａには、リヤフォーク13の前端が軸14により枢支され、このリヤフォーク13は後方に延びて後端に後輪15が回転自在に支持されている。上記メインフレーム２の後部とリヤフォーク13の後部との間には、リヤクッションユニット16が介装されている。   A fuel tank 10 is mounted on the front portion of the main frame 2, and a seat 11 is provided behind the fuel tank 10. Reference numeral 12 denotes a handle. A front end of the rear fork 13 is pivotally supported on the bracket 7a by a shaft 14. The rear fork 13 extends rearward and a rear wheel 15 is rotatably supported at the rear end. A rear cushion unit 16 is interposed between the rear portion of the main frame 2 and the rear portion of the rear fork 13.

メインフレーム２、ダウンフレーム６およびセンタフレーム８により囲まれた空所には、車体中心を通る前後方向鉛直面（車体中心面）に沿って、シリンダブロック17ｂ、シリンダヘッド17ｃ、ヘッドカバー17ｄ、クランクケース17ｅを含む内燃機関本体17がシリンダ軸線17ａを上向きにして搭載され、アンダフレーム７およびブラケット７ａに固定されている。本実施形態の内燃機関は、燃料噴射型である。したがって、気化器は設けられず、燃料供給装置19や後述する燃料噴射弁等が設けられる。   In a space surrounded by the main frame 2, the down frame 6, and the center frame 8, along the vertical plane (vehicle center plane) passing through the center of the vehicle body, a cylinder block 17b, a cylinder head 17c, a head cover 17d, a crankcase An internal combustion engine body 17 including 17e is mounted with the cylinder axis 17a facing upward, and is fixed to the underframe 7 and the bracket 7a. The internal combustion engine of this embodiment is a fuel injection type. Therefore, a carburetor is not provided, and a fuel supply device 19, a fuel injection valve described later, and the like are provided.

次に図２は、図１中の内燃機関本体17の上部およびその後方を拡大して示す側面図、図３は同じく平面図、図４は同じく正面図である。   Next, FIG. 2 is an enlarged side view showing the upper part and the rear part of the internal combustion engine body 17 in FIG. 1, FIG. 3 is a plan view, and FIG. 4 is a front view.

これらの図において、１ａは車体中心を通る前後方向鉛直面（車体中心面）である。17ｂはシリンダブロック、17ｃはシリンダヘッド、19は燃料ポンプと電動モータを含む燃料供給装置であって、上記シリンダブロック17ｂ、シリンダヘッド17ｃの左後方に配置されている。   In these figures, 1a is a vertical plane (vehicle center plane) in the front-rear direction passing through the center of the vehicle body. Reference numeral 17b denotes a cylinder block, 17c denotes a cylinder head, and 19 denotes a fuel supply device including a fuel pump and an electric motor, which are arranged on the left rear side of the cylinder block 17b and the cylinder head 17c.

21はエアクリーナを含む吸気チャンバであり、エアクリーナで清浄化された空気（吸気）はコーンチューブ22を経て、シリンダブロック17ｂ、シリンダヘッド17ｃの右後方に配置された吸気系装置23に至る。ここで燃料供給装置19から供給された燃料が、スロットルボディ25において流量を調整された後、燃料噴射弁24によって、吸気中に噴射される。こうして生成された燃料・空気の混合気は、シリンダヘッド17ｃ内の吸気ポート・吸気弁を経て、シリンダブロック17ｂ内のシリンダに供給される。   Reference numeral 21 denotes an intake chamber including an air cleaner, and air (intake) cleaned by the air cleaner passes through the cone tube 22 and reaches an intake system device 23 disposed on the right rear side of the cylinder block 17b and the cylinder head 17c. Here, the fuel supplied from the fuel supply device 19 is injected into the intake air by the fuel injection valve 24 after the flow rate is adjusted in the throttle body 25. The fuel / air mixture thus generated is supplied to the cylinders in the cylinder block 17b via the intake ports and intake valves in the cylinder head 17c.

なお、図中27は燃料圧力調整装置、28は二輪車が転倒した時に燃料の流出を阻止する燃料カットバルブ、29はバッテリである。また30は、燃料供給装置19や吸気系装置23を支持するとともに、高圧燃料を供給する通路が設けられたインジェクタホルダである。   In the figure, 27 is a fuel pressure adjusting device, 28 is a fuel cut valve that prevents fuel from flowing out when the motorcycle falls, and 29 is a battery. Reference numeral 30 denotes an injector holder that supports the fuel supply device 19 and the intake system device 23 and is provided with a passage for supplying high-pressure fuel.

本実施例においては、自動二輪車１の車体中心面１ａに沿って燃料噴射型の内燃機関がシリンダ軸線17ａを縦にして配置され、そのシリンダブロック17ｂとシリンダヘッド17ｃの左後方に燃料供給装置19が、同じく右後方に吸気系装置23が、振り分けてそれぞれ配置されているので、燃料供給装置19には、内燃機関本体17から発散された熱が当たることなく、走行風が直接当たって、これを冷却する。したがって、特別な遮熱対策は不要となり、構造が簡単になる。また、レイアウトも簡潔になる。さらに前後方向のスペースが有効に活用できるので、燃料供給装置19をシリンダヘッド17ｃに近接して配置できて、高圧配管が省略できる。   In the present embodiment, a fuel injection type internal combustion engine is disposed with the cylinder axis 17a in the vertical direction along the vehicle body center plane 1a of the motorcycle 1, and a fuel supply device 19 is provided at the left rear of the cylinder block 17b and the cylinder head 17c. However, since the intake system devices 23 are also arranged on the right rear side, the traveling air is directly applied to the fuel supply device 19 without being exposed to the heat emitted from the internal combustion engine body 17. Cool down. Therefore, no special heat shield measures are required and the structure is simplified. In addition, the layout is simplified. Furthermore, since the space in the front-rear direction can be used effectively, the fuel supply device 19 can be disposed close to the cylinder head 17c, and high-pressure piping can be omitted.

また、スロットルボディ25、燃料噴射弁24等の吸気系装置23と燃料ポンプ等の燃料供給装置19とが車体中心面１ａを挟んで両側に配置され、内燃機関本体17周辺のレイアウトバランスがよくなる。   Further, an intake system device 23 such as a throttle body 25 and a fuel injection valve 24 and a fuel supply device 19 such as a fuel pump are disposed on both sides of the vehicle body center plane 1a, so that the layout balance around the internal combustion engine body 17 is improved.

図１は本発明の内燃機関を搭載した自動二輪車１の一実施形態を示す側面図である。FIG. 1 is a side view showing an embodiment of a motorcycle 1 equipped with an internal combustion engine of the present invention. 図２は図１中の内燃機関本体17の上部およびその後方を拡大して示す側面図である。FIG. 2 is an enlarged side view of the upper part and the rear part of the internal combustion engine body 17 in FIG. 図３は同じく平面図である。FIG. 3 is also a plan view. 図４は同じく正面図である。FIG. 4 is a front view of the same.

符号の説明Explanation of symbols

１…自動二輪車、１ａ…車体中心面、２…メインフレーム、３…ヘッドチューブ、４…フロントフォーク、５…前輪、６…ダウンフレーム、７…アンダフレーム、７ａ…ブラケット、８…センタフレーム、９…リヤフレーム、10…燃料タンク、11…シート、12…ハンドル、13…リヤフォーク、14…軸、15…後輪、16…リヤクッションユニット、17…内燃機関本体、17ａ…シリンダ軸線、17ｂ…シリンダブロック、17ｃ…シリンダヘッド、17ｄ…ヘッドカバー、17ｅ…クランクケース、19…燃料供給装置、21…吸気チャンバ、22…コーンチューブ、23…吸気系装置、24…燃料噴射弁、25…スロットルボディ、27…燃料圧力調整装置、28…燃料カットバルブ、29…バッテリ、30…インジェクタホルダ。   DESCRIPTION OF SYMBOLS 1 ... Motorcycle, 1a ... Vehicle body center plane, 2 ... Main frame, 3 ... Head tube, 4 ... Front fork, 5 ... Front wheel, 6 ... Down frame, 7 ... Under frame, 7a ... Bracket, 8 ... Center frame, 9 ... rear frame, 10 ... fuel tank, 11 ... seat, 12 ... handle, 13 ... rear fork, 14 ... shaft, 15 ... rear wheel, 16 ... rear cushion unit, 17 ... internal combustion engine body, 17a ... cylinder axis, 17b ... Cylinder block, 17c ... cylinder head, 17d ... head cover, 17e ... crankcase, 19 ... fuel supply device, 21 ... intake chamber, 22 ... cone tube, 23 ... intake system device, 24 ... fuel injection valve, 25 ... throttle body, 27 ... Fuel pressure adjusting device, 28 ... Fuel cut valve, 29 ... Battery, 30 ... Injector holder.

Claims (3)

自動二輪車の車体中心を通る前後方向鉛直面に沿ってシリンダ軸線を上向きにして配置された燃料噴射型の内燃機関であって、
上記内燃機関の燃料供給装置が上記内燃機関のシリンダブロックおよびシリンダヘッドの後方かつ側方に配置されたことを特徴とする内燃機関。 A fuel injection type internal combustion engine arranged with a cylinder axis facing upward along a longitudinal vertical plane passing through the center of a motorcycle body,
An internal combustion engine, wherein the fuel supply device for the internal combustion engine is disposed behind and to the side of a cylinder block and a cylinder head of the internal combustion engine. 上記内燃機関の燃料供給装置と吸気系装置とが、上記シリンダブロックおよびシリンダヘッドの後方かつ左右両側方に振り分けて、配置されたことを特徴とする請求項１記載の内燃機関。 2. The internal combustion engine according to claim 1, wherein the fuel supply device and the intake system device of the internal combustion engine are arranged so as to be distributed to the rear of the cylinder block and the cylinder head and to the left and right sides. 上記吸気系装置がスロットルボディおよび燃料噴射弁を含むことを特徴とする請求項２記載の内燃機関。
The internal combustion engine according to claim 2, wherein the intake system device includes a throttle body and a fuel injection valve.
JP2004258051A 2004-09-06 2004-09-06 Internal combustion engine Pending JP2006069459A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004258051A JP2006069459A (en) 2004-09-06 2004-09-06 Internal combustion engine
TW094120403A TWI267467B (en) 2004-09-06 2005-06-20 Internal-combustion engine
CN2005100790400A CN1746481B (en) 2004-09-06 2005-06-21 internal combustion engine
KR1020050060707A KR100754573B1 (en) 2004-09-06 2005-07-06 Internal combustion engine
BRPI0503737-9A BRPI0503737A (en) 2004-09-06 2005-08-23 internal combustion engine fuel injection type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004258051A JP2006069459A (en) 2004-09-06 2004-09-06 Internal combustion engine

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JP2006069459A true JP2006069459A (en) 2006-03-16

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JP2004258051A Pending JP2006069459A (en) 2004-09-06 2004-09-06 Internal combustion engine

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JP (1) JP2006069459A (en)
KR (1) KR100754573B1 (en)
CN (1) CN1746481B (en)
BR (1) BRPI0503737A (en)
TW (1) TWI267467B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008143317A (en) * 2006-12-08 2008-06-26 Honda Motor Co Ltd Vehicle fuel pump arrangement structure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5329321B2 (en) * 2009-07-06 2013-10-30 愛三工業株式会社 Fuel injection device
JP5386428B2 (en) * 2010-03-31 2014-01-15 本田技研工業株式会社 Fuel pump support structure
KR102842780B1 (en) 2024-09-05 2025-08-04 최진규 Fluid flow control device for internal combustion engine

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JP3481013B2 (en) * 1995-07-14 2003-12-22 本田技研工業株式会社 Height adjustment device for motorcycles

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JP2008143317A (en) * 2006-12-08 2008-06-26 Honda Motor Co Ltd Vehicle fuel pump arrangement structure

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KR100754573B1 (en) 2007-09-05
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