JPH1172056A - Fuel supply device of outboard motor - Google Patents

Fuel supply device of outboard motor

Info

Publication number
JPH1172056A
JPH1172056A JP10004810A JP481098A JPH1172056A JP H1172056 A JPH1172056 A JP H1172056A JP 10004810 A JP10004810 A JP 10004810A JP 481098 A JP481098 A JP 481098A JP H1172056 A JPH1172056 A JP H1172056A
Authority
JP
Japan
Prior art keywords
fuel
outboard motor
fuel tank
hull
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10004810A
Other languages
Japanese (ja)
Other versions
JP3932070B2 (en
Inventor
Kentaro Kameoka
健太郎 亀岡
Yoshiaki Tasaka
嘉章 田阪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Marine Co Ltd
Original Assignee
Sanshin Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanshin Kogyo KK filed Critical Sanshin Kogyo KK
Priority to JP00481098A priority Critical patent/JP3932070B2/en
Priority to DE1998609499 priority patent/DE69809499T2/en
Priority to EP98111762A priority patent/EP0887527B1/en
Publication of JPH1172056A publication Critical patent/JPH1172056A/en
Application granted granted Critical
Publication of JP3932070B2 publication Critical patent/JP3932070B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • 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
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PROBLEM TO BE SOLVED: To install fuel supplying components in compact arrangement in an outboard motor of such a configuration that fuel tanks are installed both on the hull side and outboard motor side. SOLUTION: A fuel supply device for an outboard motor is equipped with a motor to be mounted in the rear of a hull, a hull side fuel tank to be installed on the hull side, a motor side fuel tank 29 installed near the front of engine 21, a fuel pump to supply the fuel to the engine, and a fuel changeover cock 37 which feeds the fuel in the hull side tank and outboard motor side tank selectively to the fuel pump, wherein the cock 37 is located under the motor side fuel tank 29.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、船体側と船外機側
にそれぞれ燃料タンクを備えるタイプの船外機の技術分
野に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an outboard motor having a fuel tank on each of a hull side and an outboard motor side.

【０００２】[0002]

【従来の技術】小型船舶の推進装置としてその船尾部に
取り付けられる船外機は、推進ユニットの上部にエンジ
ンを装着しエンジンの周囲にサイレンサや、キャブレタ
ー、スタータケース、燃料ポンプなどの種々の部品をコ
ンパクトな構成になるように配置し、これらをカウリン
グと呼ばれるエンジンカバー部材で覆うようにしてい
る。従来、小型の船外機において船体側とカウリング内
のそれぞれに燃料タンクを配置する方式が知られてい
る。2. Description of the Related Art An outboard motor mounted on the stern of a propulsion device for a small boat has an engine mounted on an upper part of a propulsion unit, and various components such as a silencer, a carburetor, a starter case, and a fuel pump are provided around the engine. Are arranged in a compact configuration, and these are covered with an engine cover member called a cowling. 2. Description of the Related Art Conventionally, a method has been known in which a small outboard motor has a fuel tank disposed on each of a hull side and a cowling.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、スペー
ス的に制約があるカウリング内に燃料タンクを配置し、
船体側と船外機側の燃料を切換コックを介して、燃料ポ
ンプ、キャブレターに供給する場合、これらを接続する
燃料配管がエンジンのまわりに集中し、コンパクト性や
取付性に問題が生じてしまう。However, a fuel tank is arranged in a cowling having a limited space.
When supplying fuel on the hull side and the outboard motor side to the fuel pump and carburetor via the switching cock, the fuel pipes connecting them are concentrated around the engine, causing problems in compactness and mountability. .

【０００４】また、船外機側の燃料タンクに燃料を補給
する場合には、カウリングを外して補給用容器に入れた
燃料を燃料タンクに入れる必要があり、補給に手間がか
かるとともに補給用容器を用意しなければならないとい
う問題があった。In addition, when refueling the fuel tank on the outboard motor side, it is necessary to remove the cowling and put the fuel in the replenishing container into the fuel tank, which takes time and troubles in replenishment. Had to be prepared.

【０００５】本発明は、上記従来の問題を解決するもの
であって、船体側と船外機側に燃料タンクを備えるタイ
プの船外機において、その第１の目的は、燃料供給部品
をコンパクトに配置することであり、第２の目的は、船
外機側燃料タンクに燃料を簡単に補給することである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. The first object of the present invention is to provide an outboard motor having a fuel tank on the hull side and the outboard motor side. The second purpose is to easily refuel the outboard motor side fuel tank.

【０００６】[0006]

【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１記載の船外機の燃料供給装置は、
船体２の後部に装着される船外機１と、船体側に配設さ
れる船体側燃料タンクと、エンジン２１の前部に近接し
て配設される船外機側燃料タンク２９と、エンジンに燃
料を供給する燃料ポンプ５０と、船体側燃料タンクと船
外機側燃料タンクの燃料を前記燃料ポンプに選択的に切
り換える燃料切換コック３７とを備え、前記燃料切換コ
ックを船外機側燃料タンクの下方に配設したことを特徴
とし、請求項２記載の発明は、請求項１において、上記
燃料切換コックをエンジンを覆うカバー部材１２に固定
したことを特徴とし、請求項３記載の発明は、船体２の
後部に装着される船外機１と、船体側に配設される船体
側燃料タンク６０及び副燃料ポンプ６１と、船外機側に
配設される船外機側燃料タンク２９と、エンジンに燃料
を供給する主燃料ポンプ５０と、船体側燃料タンク６０
と船外機側燃料タンク２９の燃料を前記主燃料ポンプ５
０に選択的に切り換える燃料切換コック３７とを備え、
前記燃料切換コックを船体側燃料タンク６０と船外機側
燃料タンク２９を連通可能に構成したことを特徴とす
る。なお、上記構成に付加した番号は、本発明の理解を
容易にするために図面と対比させるもので、これにより
本発明が何ら限定されるものではない。According to a first aspect of the present invention, there is provided a fuel supply system for an outboard motor.
An outboard motor 1 mounted on the rear of the hull 2, a hull fuel tank disposed on the hull side, an outboard motor fuel tank 29 disposed close to the front of the engine 21; And a fuel switching cock 37 for selectively switching the fuel in the hull side fuel tank and the outboard motor side fuel tank to the fuel pump. The fuel switching cock is connected to the outboard motor side fuel tank. The invention as set forth in claim 2 is characterized in that the fuel switching cock is fixed to a cover member 12 that covers an engine. Are an outboard motor 1 mounted at the rear of the hull 2, a hull side fuel tank 60 and an auxiliary fuel pump 61 disposed on the hull side, and an outboard motor side fuel tank disposed on the outboard motor side. 29 and the main fuel that supplies fuel to the engine A pump 50, hull fuel tank 60
The fuel in the outboard motor side fuel tank 29 is supplied to the main fuel pump 5
And a fuel switching cock 37 for selectively switching to zero.
The fuel switching cock is configured so that the hull-side fuel tank 60 and the outboard motor-side fuel tank 29 can communicate with each other. Note that the numbers added to the above configuration are compared with the drawings for easy understanding of the present invention, and the present invention is not limited thereto.

【０００７】[0007]

【発明の実施の形態】以下、本発明の実施の形態を図面
を参照しつつ説明する。なお、以下の各図面の説明にお
いて同一部品には同一番号を付けて説明を省略すること
がある。また、以下の説明において前部及び後部とは、
船体の推進方向に対していうものとする。Embodiments of the present invention will be described below with reference to the drawings. In the following description of the drawings, the same parts are denoted by the same reference numerals, and the description may be omitted. In the following description, the front part and the rear part are:
It shall refer to the direction of hull propulsion.

【０００８】図１は、本発明に係わる船外機の１実施形
態を示す側面図である。船外機１は、船体２の後部に着
脱自在に取り付けられるクランプブラケット３と、クラ
ンプブラケット３に水平軸５を介して上下方向に回動自
在に枢支されるスイベルブラケット６と、このスイベル
ブラケット６に水平方向に回動自在に支持される推進ユ
ニット７とを備えている。前記推進ユニット７は、スイ
ベルブラケット６に回転自在に支持されるアッパケース
９を有し、アッパケース９の下部にはロアケース１０が
取り付けられ、全体としてケーシングを構成している。
ロアケース１０にはプロペラ１１が装着され、アッパケ
ース９の上部にはボトムカウリング１２が取り付けら
れ、ボトムカウリング１２にトップカウリング１３が着
脱可能に取り付けられている。FIG. 1 is a side view showing an embodiment of an outboard motor according to the present invention. The outboard motor 1 includes a clamp bracket 3 detachably attached to a rear portion of the hull 2, a swivel bracket 6 pivotally supported by the clamp bracket 3 via a horizontal shaft 5 in a vertical direction, and a swivel bracket 6 6 is provided with a propulsion unit 7 supported rotatably in the horizontal direction. The propulsion unit 7 has an upper case 9 rotatably supported by the swivel bracket 6, and a lower case 10 is attached to a lower portion of the upper case 9 to form a casing as a whole.
A propeller 11 is mounted on the lower case 10, a bottom cowling 12 is mounted on the upper case 9, and a top cowling 13 is detachably mounted on the bottom cowling 12.

【０００９】船体２側には、船体側燃料タンク６０が配
設され、手動式の燃料ポンプ６１、燃料供給ホース５５
を介して船外機１に接続されている。なお、１５はスタ
ータハンドル、１６はステアリングハンドル、１７は冷
却水取入口、１９は水面を示している。On the hull 2 side, a hull side fuel tank 60 is disposed, and a manual fuel pump 61 and a fuel supply hose 55 are provided.
Is connected to the outboard motor 1 via the. Reference numeral 15 denotes a starter handle, 16 denotes a steering handle, 17 denotes a cooling water intake, and 19 denotes a water surface.

【００１０】図２は、図１の垂直断面図である。アッパ
ケース９は筒状に形成されており、その上部には皿状に
広がるエンジン連結部９ａが形成され、下部にはロアケ
ース連結部９ｃが形成され、両連結部９ａ、９ｃ間に小
径の筒状部９ｂが形成されている。そして、この筒状部
９ｂの上下にゴムマウント２０を介してスイベルブラケ
ット６が取り付けられ、スイベルブラケット６にアッパ
ケース９が回転自在に支持されている。FIG. 2 is a vertical sectional view of FIG. The upper case 9 is formed in a cylindrical shape, and an engine connecting portion 9a that spreads in a dish shape is formed in an upper portion thereof, a lower case connecting portion 9c is formed in a lower portion, and a small-diameter cylinder is provided between the connecting portions 9a and 9c. A shape 9b is formed. The swivel bracket 6 is attached to the upper and lower sides of the cylindrical portion 9b via rubber mounts 20, and the upper case 9 is rotatably supported by the swivel bracket 6.

【００１１】アッパケース９のエンジン連結部９ａには
エンジン２１が連結されている。エンジン２１は、例え
ば単気筒４サイクルエンジンであり、横置き状態に配設
された気筒２２と縦置き状態に配設されたクランク軸２
３を備えている。エンジン２１の周囲には、スタータケ
ース２５、インテークマニホールド２６、キャブレター
２７、船外機側燃料タンク２９等が配設されている。ア
ッパケース９及びロアケース１０内にはドライブシャフ
ト３０が縦方向に配設され、その上端はクランク軸２３
に連結され、その下端は傘歯車３１を介してプロペラシ
ャフト３２に連結されている。また、アッパケース９内
にはシフトロッド３３及び冷却水供給管３５が縦方向に
配設され、冷却水供給管３５の下端は冷却水ポンプ３６
に連結されている。なお、本実施形態においては、船体
側にも燃料タンク（図示せず）を備えている。An engine 21 is connected to an engine connecting portion 9a of the upper case 9. The engine 21 is, for example, a single-cylinder four-cycle engine, and includes a cylinder 22 disposed in a horizontal position and a crankshaft 2 disposed in a vertical position.
3 is provided. Around the engine 21, a starter case 25, an intake manifold 26, a carburetor 27, an outboard motor side fuel tank 29, and the like are disposed. A drive shaft 30 is provided in the upper case 9 and the lower case 10 in a vertical direction, and an upper end thereof is connected to a crankshaft 23.
And a lower end thereof is connected to a propeller shaft 32 via a bevel gear 31. A shift rod 33 and a cooling water supply pipe 35 are provided in the upper case 9 in a vertical direction, and a lower end of the cooling water supply pipe 35 is connected to a cooling water pump 36.
It is connected to. In this embodiment, a fuel tank (not shown) is also provided on the hull side.

【００１２】次に、図３〜図８により図２の詳細につい
て説明する。図３は図２の上部拡大断面図、図４は図３
のエンジンの正面図、図５（Ａ）は図３のエンジンの背
面図、図５（Ｂ）は図５（Ａ）のＸ部の拡大断面図であ
る。図６は図３のエンジンの底面図、図７はコネクタの
接続構造を示す断面図、図８は作用を説明するための図
である。Next, FIG. 2 will be described in detail with reference to FIGS. 3 is an enlarged sectional view of the upper part of FIG. 2, and FIG.
5 (A) is a rear view of the engine of FIG. 3, and FIG. 5 (B) is an enlarged sectional view of a portion X in FIG. 5 (A). 6 is a bottom view of the engine shown in FIG. 3, FIG. 7 is a sectional view showing a connection structure of the connector, and FIG. 8 is a view for explaining the operation.

【００１３】図３において、アッパケース９のエンジン
連結部９ａにはボトムカウリング１２がボルト１４によ
り取り付けられている。エンジン２１は、シリンダヘッ
ド２１ａ、ヘッドカバー２１ｂ、シリンダケース２１ｃ
及びオイルパンを兼用するクランクケース２１ｄからな
り、クランク軸２３に連結されたピストン２１ｅ、吸気
弁２１ｆ、排気弁２１ｇ、排気通路２１ｈを有してい
る。インテークマニホールド２６の吸気口２６ａは下向
きに開口されている。In FIG. 3, a bottom cowling 12 is attached to an engine connecting portion 9a of the upper case 9 by bolts 14. The engine 21 includes a cylinder head 21a, a head cover 21b, a cylinder case 21c.
And a piston 21e connected to a crankshaft 23, an intake valve 21f, an exhaust valve 21g, and an exhaust passage 21h. The intake port 26a of the intake manifold 26 is opened downward.

【００１４】燃料タンク２９の下方でボトムカウリング
１２の底面には、三方切換弁からなる燃料切換コック３
７が取り付けられ、切換レバー３７ａにより船体側及び
船外機側燃料タンクからの燃料供給を切り換え可能にし
ている。また、燃料切換コック３７の上方でボトムカウ
リング１２の前面には、船体側燃料タンクからのホース
接続用のコネクタ３９が取り付けられている。このコネ
クタ３９には押圧ピン３９ａと係合ピン３９ｂが設けら
れている。Below the fuel tank 29, on the bottom surface of the bottom cowling 12, there is provided a fuel switching cock 3 comprising a three-way switching valve.
The fuel supply from the fuel tank on the hull side and the fuel tank on the outboard motor side can be switched by the switching lever 37a. A connector 39 for connecting a hose from a hull-side fuel tank is mounted on the front surface of the bottom cowling 12 above the fuel switching cock 37. The connector 39 has a pressing pin 39a and an engaging pin 39b.

【００１５】前記コネクタ３９は、図７に示すように、
船体側燃料タンクの燃料供給ホース５５の先端に取り付
けられたコネクタ５６に接続可能にされている。このコ
ネクタ５６は、内部にスプリング５６ａにより付勢され
る球弁５６ｂと、球弁５６ｂの弁座５６ｃと、係合ピン
３９ｂが係合される係合孔５６ｄと、係合ピン３９ｂを
係止するフック５６ｅとを備え、コネクタ５６をコネク
タ３９に連結したとき、押圧ピン３９ａが球弁５６ｂを
押圧し、燃料が流れるようにしている。The connector 39 is, as shown in FIG.
It is connectable to a connector 56 attached to the tip of a fuel supply hose 55 of the hull side fuel tank. The connector 56 locks a ball valve 56b internally biased by a spring 56a, a valve seat 56c of the ball valve 56b, an engagement hole 56d in which the engagement pin 39b is engaged, and an engagement pin 39b. When the connector 56 is connected to the connector 39, the pressing pin 39a presses the ball valve 56b so that fuel flows.

【００１６】図３〜図６に示すように、燃料タンク２９
は、エンジンボディ（２１ｃ、２１ｄ）の前面に近接し
て配置され、その上部はスタータケース２５の側方から
上方に延びトップカウリング１３の上面に突出されると
ともに、シール用パッキング４０を介してトップカウリ
ング１３に押圧され、燃料タンク２９の上端の給油口に
は給油用キャップ４１が螺合され、給油用キャップ４１
に空気抜き用キャップ４２が螺合されている。As shown in FIG. 3 to FIG.
Is arranged in the vicinity of the front surface of the engine body (21c, 21d), the upper part of which extends upward from the side of the starter case 25 and protrudes from the upper surface of the top cowling 13, and the top is provided via a sealing packing 40. It is pressed by the cowling 13 and a fueling cap 41 is screwed into a fueling port at an upper end of the fuel tank 29.
Is screwed with a cap 42 for air release.

【００１７】図４〜図６に示すように、燃料タンク２９
の側面には、エンジンボディ（２１ｃ、２１ｄ）側に２
つのブラケット２９ａ、２９ｂが一体に形成されるとと
もに、底面には１つのブラケット２９ｃが一体に形成さ
れている。また、スタータケース２５の両側面にもブラ
ケット２５ａ、２５ｂが一体に形成され、さらに、シリ
ンダケース２１ｃには、ボス４３ａ、４３ｂが一体に形
成され、クランクケース２１ｄにはボス４３ｃが一体に
形成されている。As shown in FIG. 4 to FIG.
On the side of the engine body (21c, 21d)
One bracket 29a and 29b are integrally formed, and one bracket 29c is integrally formed on the bottom surface. Also, brackets 25a and 25b are integrally formed on both side surfaces of the starter case 25, and bosses 43a and 43b are integrally formed on the cylinder case 21c, and a boss 43c is integrally formed on the crankcase 21d. ing.

【００１８】そして、スタータケース２５側のブラケッ
ト２５ａ、２５ｂと燃料タンク２９の側面のブラケット
２９ａ、２９ｂを当接し、ボルト４５によりエンジンボ
ディ側のボス４３ａ、４３ｂに固定し、また、燃料タン
ク２９の底面のブラケット２９ｃをボルト４５によりエ
ンジンボディ側のボス４３ｃに固定している。この固定
構造は、図５に示すように、ボルト４５とボス４３ｂ間
にカラー４６を嵌合させ、ブラケット２５ｂとブラケッ
ト２９ｂの間及びブラケット２９ｂとボス４３ｃ間にゴ
ム等の弾性材料からなるブッシュ４７を配設し、エンジ
ンの振動が燃料タンク２９に伝達するのを防止してい
る。Then, the brackets 25a, 25b on the starter case 25 side and the brackets 29a, 29b on the side of the fuel tank 29 abut, and are fixed to the bosses 43a, 43b on the engine body side with bolts 45. A bottom bracket 29c is fixed to a boss 43c on the engine body side by a bolt 45. As shown in FIG. 5, this fixing structure has a collar 46 fitted between the bolt 45 and the boss 43b, and a bush 47 made of an elastic material such as rubber between the bracket 25b and the bracket 29b and between the bracket 29b and the boss 43c. To prevent transmission of vibration of the engine to the fuel tank 29.

【００１９】また、燃料タンク２９の底面には燃料供給
口２９ｄが形成され、燃料切換コック３７の一方の入口
ポートは、ホース４９ａを介して燃料供給口２９ｄに接
続されると共に、他方の入口ポートは、ホース４９ｂを
介してコネクタ３９に接続され、出口ポートはホース４
９ｃを介して燃料ポンプ５０（図５）に接続され、さら
に燃料ポンプ５０はホース４９ｄを介してキャブレター
２７に接続されている。前記燃料ポンプ５０はクランク
軸２３の回転により駆動される。A fuel supply port 29d is formed on the bottom surface of the fuel tank 29. One inlet port of the fuel switching cock 37 is connected to the fuel supply port 29d via a hose 49a, and the other inlet port. Is connected to the connector 39 via a hose 49b, and the outlet port is connected to the hose 4
The fuel pump 50 is connected to the carburetor 27 via a hose 49d. The fuel pump 50 is driven by rotation of the crankshaft 23.

【００２０】図３において、アッパケース９とボトムカ
ウリング１２間の空気取入れ口５３から冷気が取り入れ
られ、冷気は、図示矢印に示すように燃料タンク２９の
周囲を通るため、燃料タンク２９が冷却される。また、
アッパケース９とボトムカウリング１２間の空気取入れ
口５３からの冷気は、吸気口２６ａに取り入れられる。
このとき、吸気口２６ａは下向きに開口されているた
め、容易に新気を取り入れることができる。トップカウ
リング１３の上面には、キャブレター２７に対向して空
気抜き口５１が形成され、この空気抜き口５１を覆うよ
うにカバー５２が取り付けられ、カウリング１２、１３
内の空気を排出可能にするとともに水の侵入を防止する
ようにしている。In FIG. 3, cool air is taken in from an air intake 53 between the upper case 9 and the bottom cowling 12, and the cool air flows around the fuel tank 29 as shown by the arrow in the figure, so that the fuel tank 29 is cooled. You. Also,
Cool air from the air inlet 53 between the upper case 9 and the bottom cowling 12 is taken into the air inlet 26a.
At this time, since the air inlet 26a is opened downward, fresh air can be easily taken in. An air vent 51 is formed on the upper surface of the top cowling 13 so as to face the carburetor 27, and a cover 52 is attached so as to cover the air vent 51.
The inside air can be exhausted and water is prevented from entering.

【００２１】上記構成からなる本実施形態の作用につい
て図８をも参照して説明する。図８において、副燃料ポ
ンプは前述の手動式の燃料ポンプ６１であり、主燃料ポ
ンプは、エンジン駆動の燃料ポンプ５０である。The operation of this embodiment having the above configuration will be described with reference to FIG. In FIG. 8, the auxiliary fuel pump is the aforementioned manual fuel pump 61, and the main fuel pump is the engine-driven fuel pump 50.

【００２２】図８（Ａ）に示すように、燃料切換コック
３７を船体側燃料タンク６０と燃料ポンプ５０が連通
し、船外機側燃料タンク２９が遮断する側に切り換える
と、燃料は、船体側燃料タンク６０、副燃料ポンプ６１
（始動時のみ使用）、燃料供給ホース５５、コネクタ５
６、３９、ホース４９ｂ、燃料切換コック３７、ホース
４９ｃ、燃料ポンプ５０、ホース４９ｄを介してキャブ
レター２７に供給される。As shown in FIG. 8A, when the fuel switching cock 37 is switched to the side where the hull side fuel tank 60 and the fuel pump 50 communicate and the outboard motor side fuel tank 29 is shut off, the fuel is switched to the hull. Side fuel tank 60, sub fuel pump 61
(Only used at start-up), fuel supply hose 55, connector 5
6, 39, the hose 49b, the fuel switching cock 37, the hose 49c, the fuel pump 50, and the hose 49d are supplied to the carburetor 27.

【００２３】また、図８（Ｂ）に示すように、燃料切換
コック３７を船外機側燃料タンク２９と燃料ポンプ５０
が連通し、船体側燃料タンク６０が遮断する側に切り換
えると、燃料は、船外機側燃料タンク２９、ホース４９
ａ、燃料切換コック３７、ホース４９ｃ、燃料ポンプ５
０、ホース４９ｄを介してキャブレター２７に供給され
る。このとき、空気抜き用キャップ４２を緩め船外機側
燃料タンク２９内を大気と連通させている。As shown in FIG. 8B, the fuel switching cock 37 is connected to the outboard motor side fuel tank 29 and the fuel pump 50.
When the hull-side fuel tank 60 is switched to the shut-off side, fuel is supplied to the outboard motor-side fuel tank 29 and the hose 49.
a, fuel switching cock 37, hose 49c, fuel pump 5
0, is supplied to the carburetor 27 via the hose 49d. At this time, the air vent cap 42 is loosened to allow the outboard motor side fuel tank 29 to communicate with the atmosphere.

【００２４】本実施形態においては、船外機側燃料タン
ク２９がエンジンの前部に配置され、該燃料タンク２９
の下方に燃料切換コック３７及びコネクタ３９を配置し
たので、燃料供給部品をコンパクトに配置することがで
きるとともに、燃料配管を短くすることができる。In the present embodiment, the outboard motor side fuel tank 29 is disposed at the front of the engine, and
Since the fuel switching cock 37 and the connector 39 are arranged below the fuel supply cock, the fuel supply parts can be compactly arranged and the fuel piping can be shortened.

【００２５】図９は、本発明の燃料供給装置の他の実施
形態を示す構成図である。図９には前述した船体側燃料
タンク６０、副燃料ポンプ（手動式の燃料ポンプ）６
１、コネクタ５６、３９、燃料切換コック３７、船外機
側燃料タンク２９、空気抜き用キャップ４２、主燃料ポ
ンプ（エンジン駆動の燃料ポンプ）５０、キャブレター
２７が示されている。FIG. 9 is a configuration diagram showing another embodiment of the fuel supply device of the present invention. FIG. 9 shows the hull-side fuel tank 60 and the auxiliary fuel pump (manual fuel pump) 6 described above.
1, the connectors 56 and 39, the fuel switching cock 37, the outboard motor-side fuel tank 29, the air vent cap 42, the main fuel pump (engine-driven fuel pump) 50, and the carburetor 27 are shown.

【００２６】本実施形態においては、副燃料ポンプ６１
の下流側に逆止弁６２を配設すると共に、燃料切換コッ
ク３７を、船外機側燃料タンク２９が船体側燃料タンク
６０及び主燃料ポンプ５０と連通するように切換可能に
構成している。そして、エンジンが停止し主燃料ポンプ
５０が停止している状態で空気抜き用キャップ４２を緩
め副燃料ポンプ６１を駆動させると、船体側燃料タンク
６０の燃料は、船外機側燃料タンク２９に供給され、燃
料の補給が可能となる。なお、逆止弁６２をコネクター
３９と燃料切換コック３７の間に配設するようにしても
よい。In the present embodiment, the auxiliary fuel pump 61
A check valve 62 is disposed on the downstream side, and the fuel switching cock 37 is configured to be switchable so that the outboard motor side fuel tank 29 communicates with the hull side fuel tank 60 and the main fuel pump 50. . When the auxiliary fuel pump 61 is driven by loosening the air vent cap 42 with the engine stopped and the main fuel pump 50 stopped, the fuel in the hull side fuel tank 60 is supplied to the outboard motor side fuel tank 29. The fuel can be replenished. The check valve 62 may be provided between the connector 39 and the fuel switching cock 37.

【００２７】また、船外機側燃料タンク２９に燃料を補
給した以後は、空気抜き用キャップ４２を閉じておけ
ば、エンジンが駆動し船外機側燃料タンク２９内の燃料
消費に伴って船外機側燃料タンク２９内が負圧になり、
船体側燃料タンク６０内の燃料が船外機側燃料タンク２
９内に自動的に補給することができる。After refueling the outboard motor-side fuel tank 29, if the air vent cap 42 is closed, the engine will be driven and the outboard motor-side fuel tank 29 will be outboard as fuel is consumed. The inside of the machine side fuel tank 29 becomes negative pressure,
The fuel in the hull side fuel tank 60 is
9 can be automatically replenished.

【００２８】以上、本発明の実施の形態について説明し
たが、本発明はこれに限定されるものではなく種々の変
更が可能である。例えば、上記実施形態においては、４
サイクルエンジンの例について説明したが、２サイクル
エンジンへの適用も可能であり、その場合には、キャブ
レターはエンジンの前部に配置されることになる。Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made. For example, in the above embodiment, 4
Although an example of a cycle engine has been described, application to a two-cycle engine is also possible, in which case the carburetor will be located at the front of the engine.

【００２９】[0029]

【発明の効果】以上の説明から明らかなように、請求項
１記載の発明によれば、船体側と船外機側に燃料タンク
を備えるタイプの船外機において、船外機側燃料タンク
がエンジンの前部に配置され、該燃料タンクの下方に燃
料切換コック及びコネクタを配置したので、燃料供給部
品をコンパクトに配置することができとともに、燃料配
管を短くすることができ、また、請求項２記載の発明に
よれば、カバー部材内のスペースを利用して燃料切換コ
ックを装着することができる。さらに、請求項３記載の
発明によれば、船外機側燃料タンクに燃料を簡単に補給
することができる。As is apparent from the above description, according to the first aspect of the present invention, in the outboard motor having the fuel tank on the hull side and the outboard motor side, the outboard motor side fuel tank is provided. Since the fuel switching cock and the connector are arranged below the fuel tank and arranged at the front of the engine, the fuel supply parts can be compactly arranged, and the fuel pipe can be shortened. According to the invention described in (2), the fuel switching cock can be mounted using the space in the cover member. Further, according to the third aspect of the invention, fuel can be easily supplied to the outboard motor side fuel tank.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明に係わる船外機の１実施形態を示す側面
図である。FIG. 1 is a side view showing one embodiment of an outboard motor according to the present invention.

【図２】図１の垂直断面図である。FIG. 2 is a vertical sectional view of FIG.

【図３】図２の上部拡大断面図である。FIG. 3 is an enlarged sectional view of the upper part of FIG. 2;

【図４】図３のエンジンの正面図である。FIG. 4 is a front view of the engine of FIG. 3;

【図５】図５（Ａ）は図３のエンジンの背面図、図５
（Ｂ）は図５（Ａ）のＸ部の拡大断面図である。FIG. 5 (A) is a rear view of the engine of FIG. 3, and FIG.
FIG. 5B is an enlarged cross-sectional view of a portion X in FIG.

【図６】図３のエンジンの底面図である。FIG. 6 is a bottom view of the engine of FIG. 3;

【図７】コネクタの接続構造を示す断面図である。FIG. 7 is a cross-sectional view showing a connector connection structure.

【図８】上記実施形態の作用を説明するための図であ
る。FIG. 8 is a diagram for explaining the operation of the embodiment.

【図９】本発明の燃料供給装置の他の実施形態を示す構
成図である。FIG. 9 is a configuration diagram showing another embodiment of the fuel supply device of the present invention.

【符号の説明】[Explanation of symbols]

１…船外機 ２…船体 １２…ボトムカウリング（カバー部材） ２１…エンジン ２９…船外機側燃料タンク ３７…燃料切換コック ５０…主燃料ポンプ ６０…船体側燃料タンク ６１…副燃料ポンプ DESCRIPTION OF SYMBOLS 1 ... Outboard motor 2 ... Hull 12 ... Bottom cowling (cover member) 21 ... Engine 29 ... Outboard motor side fuel tank 37 ... Fuel switching cock 50 ... Main fuel pump 60 ... Hull side fuel tank 61 ... Sub fuel pump

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】船体の後部に装着される船外機と、船体側
に配設される船体側燃料タンクと、エンジンの前部に近
接して配設される船外機側燃料タンクと、エンジンに燃
料を供給する燃料ポンプと、船体側燃料タンクと船外機
側燃料タンクの燃料を前記燃料ポンプに選択的に切り換
える燃料切換コックとを備え、前記燃料切換コックを船
外機側燃料タンクの下方に配設したことを特徴とする船
外機の燃料供給装置。1. An outboard motor mounted on a rear part of a hull, a hull side fuel tank disposed on a hull side, and an outboard motor side fuel tank disposed close to a front part of an engine. A fuel pump for supplying fuel to the engine; and a fuel switching cock for selectively switching fuel in the hull-side fuel tank and the outboard motor-side fuel tank to the fuel pump. A fuel supply device for an outboard motor, wherein the fuel supply device is disposed below the fuel tank. 【請求項２】上記燃料切換コックをエンジンを覆うカバ
ー部材に固定したことを特徴とする請求項１記載の船外
機の燃料供給装置。2. The fuel supply system for an outboard motor according to claim 1, wherein said fuel switching cock is fixed to a cover member covering the engine. 【請求項３】船体の後部に装着される船外機と、船体側
に配設される船体側燃料タンク及び副燃料ポンプと、船
外機側に配設される船外機側燃料タンクと、エンジンに
燃料を供給する主燃料ポンプと、船体側燃料タンクと船
外機側燃料タンクの燃料を前記主燃料ポンプに選択的に
切り換える燃料切換コックとを備え、前記燃料切換コッ
クを船体側燃料タンクと船外機側燃料タンクを連通可能
に構成したことを特徴とする船外機の燃料供給装置。3. An outboard motor mounted on the rear of the hull, a hull-side fuel tank and an auxiliary fuel pump disposed on the hull side, and an outboard motor-side fuel tank disposed on the outboard motor side. A main fuel pump for supplying fuel to the engine, and a fuel switching cock for selectively switching fuel in a hull-side fuel tank and an outboard motor-side fuel tank to the main fuel pump. A fuel supply device for an outboard motor, wherein the tank and the outboard motor-side fuel tank are configured to be able to communicate with each other.
JP00481098A 1997-06-25 1998-01-13 Outboard motor fuel supply system Expired - Lifetime JP3932070B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP00481098A JP3932070B2 (en) 1997-06-25 1998-01-13 Outboard motor fuel supply system
DE1998609499 DE69809499T2 (en) 1997-06-25 1998-06-25 Arrangement of an outboard motor for a boat
EP98111762A EP0887527B1 (en) 1997-06-25 1998-06-25 Outboard arrangement for a boat

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9-168730 1997-06-25
JP16873097 1997-06-25
JP00481098A JP3932070B2 (en) 1997-06-25 1998-01-13 Outboard motor fuel supply system

Publications (2)

Publication Number Publication Date
JPH1172056A true JPH1172056A (en) 1999-03-16
JP3932070B2 JP3932070B2 (en) 2007-06-20

Family

ID=26338649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP00481098A Expired - Lifetime JP3932070B2 (en) 1997-06-25 1998-01-13 Outboard motor fuel supply system

Country Status (3)

Country Link
EP (1) EP0887527B1 (en)
JP (1) JP3932070B2 (en)
DE (1) DE69809499T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3909664B2 (en) * 2001-10-19 2007-04-25 本田技研工業株式会社 Motorcycle fuel supply system
JP2010101488A (en) 2008-09-18 2010-05-06 Yamaha Motor Co Ltd Fuel supply system for outboard motor, and outboard motor
US20160252051A1 (en) * 2013-12-06 2016-09-01 Sikorsky Aircraft Corporation Bubble collector for suction fuel system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506649A (en) * 1983-10-03 1985-03-26 Outboard Marine Corporation Vent system
JPS6250295A (en) * 1985-08-29 1987-03-04 Sanshin Ind Co Ltd Fuel feeding device for outboard engine
JPS6393695A (en) * 1986-10-07 1988-04-23 Sanshin Ind Co Ltd Liquid tank holding structure of ship propelling machine
JPH01301913A (en) * 1988-05-30 1989-12-06 Sanshin Ind Co Ltd Built-in tank type outboard motor
JPH02256867A (en) * 1989-03-29 1990-10-17 Tonen Corp Fuel changeover valve for spark ignition engine
JPH09144616A (en) * 1995-11-24 1997-06-03 Sanshin Ind Co Ltd Fuel supplying device for ship

Also Published As

Publication number Publication date
EP0887527A3 (en) 1999-06-09
JP3932070B2 (en) 2007-06-20
EP0887527B1 (en) 2002-11-20
DE69809499T2 (en) 2003-03-27
EP0887527A2 (en) 1998-12-30
DE69809499D1 (en) 2003-01-02

Similar Documents

Publication Publication Date Title
US6592415B2 (en) Vehicle having improved fuel, lubrication and air intake systems
US4692123A (en) Outboard motor
JPH09254882A (en) Cooling device of water vehicle
US6530336B2 (en) Box arrangement for watercraft
US20020053310A1 (en) Bow hatch construction for watercraft
JP4091692B2 (en) Cooling device for small marine engine
JPH0988753A (en) Fuel piping structure of engine for small surface travelling boat
JP3945665B2 (en) Engine cooling structure for outboard motor
JPH10194195A (en) Compact ship
JP3932070B2 (en) Outboard motor fuel supply system
JP4066274B2 (en) Outboard oil passage structure
JP3945666B2 (en) Anti-vibration structure of outboard motor
JPH03246191A (en) Air exhaust device
JPS6393695A (en) Liquid tank holding structure of ship propelling machine
JP2003026092A (en) Engine mount structure of small planing boat
JP4172600B2 (en) Outboard motor fuel tank cooling structure
JP4112731B2 (en) Water motorcycle
JPH1113544A (en) Carburetor device for multicylinder engine
JPH115592A (en) Arranging structure for fuel pump in ship
US20020055308A1 (en) Fuel tank construction for watercraft
JP2000255491A (en) Engine mount structure of engine for small ship
JP4114762B2 (en) Outboard motor
JPH0316799Y2 (en)
US20020053309A1 (en) Ventilation with filter for watercraft
JP2000198489A (en) Fuel reservoir supporting structure for small ship

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20041101

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20061206

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070307

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070308

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100323

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100323

Year of fee payment: 3

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100323

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100323

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110323

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120323

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120323

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130323

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130323

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140323

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term