JPH0141913Y2 - - Google Patents
Info
- Publication number
- JPH0141913Y2 JPH0141913Y2 JP1982143524U JP14352482U JPH0141913Y2 JP H0141913 Y2 JPH0141913 Y2 JP H0141913Y2 JP 1982143524 U JP1982143524 U JP 1982143524U JP 14352482 U JP14352482 U JP 14352482U JP H0141913 Y2 JPH0141913 Y2 JP H0141913Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- filter element
- filter
- carburetor
- intake port
- 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
- 239000000446 fuel Substances 0.000 claims description 84
- 239000002828 fuel tank Substances 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】 ＜産業上の利用分野＞ 本考案は、エンジンの燃料供給装置に関する。[Detailed explanation of the idea] <Industrial application field> The present invention relates to an engine fuel supply device.
＜従来技術＞
従来、エンジンの燃料供給装置に用いられる燃
料フイルタとして、次のものがある。<Prior Art> Conventionally, there are the following fuel filters used in engine fuel supply devices.
◎ 従来技術Ａ
第１図中想像線で示すように、燃料タンクの底
壁の燃料取出口に、タンク内方に向かうフイルタ
エレメントを付設していた。◎ Prior Art A As shown by the imaginary line in Fig. 1, a filter element facing inward of the tank was attached to the fuel outlet in the bottom wall of the fuel tank.
◎ 従来技術Ｂ
実公昭57−13138号公報に示すように、フイル
タエレメントとこのフイルタエレメントを収容す
るフイルタ本体とで燃料フイルタを配管とは別体
に構成し、この燃料フイルタを燃料タンクと気化
器間の配管の途中に、又は燃料タンクの出口孔に
組付けていた。◎ Prior art B As shown in Japanese Utility Model Publication No. 57-13138, a fuel filter is constructed separately from piping by a filter element and a filter body that accommodates this filter element, and this fuel filter is connected to a fuel tank and a carburetor. It was installed in the middle of the piping between the fuel tanks or at the outlet hole of the fuel tank.
◎ 従来技術Ｃ
実開昭52−2463号公報に示すように、フイルタ
エレメントとこのフイルタエレメントを収容する
フイルタ本体とで燃料フイルタを配管とは別体に
構成し、この燃料フイルタを気化器の燃料取入口
に組付けるとともに、フイルタ本体の横側部に配
管を連通連結していた。◎ Prior Art C As shown in Japanese Utility Model Application Publication No. 52-2463, a fuel filter is constructed separately from piping by a filter element and a filter body that accommodates this filter element, and this fuel filter is used as a fuel filter for a carburetor. It was installed at the intake port, and the piping was connected to the side of the filter body.
＜従来技術が解決しようとする課題＞
しかし、従来技術Ａ乃至従来技術Ｃでは下記の
欠点がある。<Problems to be Solved by the Prior Art> However, the conventional techniques A to C have the following drawbacks.
◎ 従来技術Ａの場合
燃料タンク内の油面が低下すると、フイルタ
エレメントの一部が油面上に露出するようにな
るので、フイルタエレメント全体で燃料をろ過
することができず、ろ過能力が低いうえ、フイ
ルタエレメントの下部が早期に目詰まりし易
く、更にろ過能力が低くなる。◎ In the case of conventional technology A: When the oil level in the fuel tank decreases, part of the filter element becomes exposed above the oil level, so the entire filter element cannot filter the fuel, resulting in low filtration capacity. Moreover, the lower part of the filter element tends to become clogged early, further reducing the filtration ability.
フイルタエレメントの掃除作業を行なう場合
には、燃料タンクの燃料取出口から配管を取外
した後、燃料タンク内からフイルタエレメント
を外に取出さなければならず、フイルタエレメ
ントの掃除作業に手間がかかる。 When cleaning the filter element, it is necessary to remove the pipe from the fuel outlet of the fuel tank and then take the filter element out of the fuel tank, which takes time and effort.
◎ 従来技術Ｂの場合
燃料フイルタとして、フイルタエレメント以
外にフイルタ本体が必要であり、燃料フイルタ
が高価になる。◎ In the case of prior art B The fuel filter requires a filter body in addition to the filter element, making the fuel filter expensive.
フイルタエレメントの掃除作業を行なう場合
には、配管から、又は燃料タンクの出口孔から
燃料フイルタを取外した後、燃料フイルタのフ
イルタ本体内からフイルタエレメントを外に取
出さなければならず、フイルタエレメントの掃
除作業に手間がかかる。 When cleaning the filter element, after removing the fuel filter from the piping or from the outlet hole of the fuel tank, the filter element must be removed from the filter body of the fuel filter. Cleaning work is time consuming.
フイルタエレメントの能力アツプを図るため
に、フイルタエレメントを大型化すると、これ
と同時にフイルタ本体も大型化しなければなら
ず、各種フイルタエレメントの大きさに応じた
燃料フイルタが必要になるうえ、燃料フイルタ
の大型化に伴ない燃料フイルタ配設のために大
きなスペースが必要となる。 In order to increase the capacity of the filter element, if the filter element is made larger, the filter body must also be made larger at the same time.Fuel filters corresponding to the sizes of various filter elements are required, and the size of the fuel filter is also increased. As the size increases, a large space is required to install the fuel filter.
◎ 従来技術Ｃの場合
燃料フイルタとして、フイルタエレメント以
外にフイルタ本体が必要であり、燃料フイルタ
が高価になる。◎ In the case of prior art C The fuel filter requires a filter body in addition to the filter element, making the fuel filter expensive.
燃料フイルタのフイルタ本体の横側部から燃
料を流入させる構造では、主にフイルタエレメ
ントの下部で燃料のろ過が行われ、ろ過能力が
低いうえ、フイルタエレメントの下部が草期に
目詰まりし易く、更にろ過能力が低くなる。 In the structure of a fuel filter in which fuel flows in from the side of the filter body, fuel filtration is mainly performed at the bottom of the filter element, which has low filtration capacity, and the bottom of the filter element tends to become clogged during the grass season. Furthermore, the filtration ability becomes lower.
フイルタエレメントの能力アツプを図るため
に、フイルタエレメントを大型化すると、これ
と同時にフイルタ本体も大型化しなければなら
ず、各種フイルタエレメントの大きさに応じた
燃料フイルタが必要になるうえ、燃料フイルタ
の大型化に伴ない燃料フイルタ配設のために大
きなスペースが必要となる。 In order to increase the capacity of the filter element, if the filter element is made larger, the filter body must also be made larger at the same time.Fuel filters corresponding to the sizes of various filter elements are required, and the size of the fuel filter is also increased. As the size increases, a large space is required to install the fuel filter.
本考案は、上記課題を解決することを目的とす
る。 The present invention aims to solve the above problems.
＜課題を解決するための手段＞
本考案は、上記目的を達成するために、例えば
第１図乃至第３図に示すように、エンジンの気化
器より高い位置に燃料タンクを配置し、燃料タン
クの下部に燃料取出口を設け、気化器の燃料取入
口にフイルタエレメント取付部と管接続部とを形
成し、筒形のフイルタエレメントの周面にろ網部
を、その基端部にエレメント出口部を形成し、気
化器の燃料取入口のフイルタエレメント取付部に
筒形フイルタエレメントのエレメント出口部を連
通状に嵌合固定し、燃料導管の上端部を燃料タン
クの燃料取出口に連通連結し、燃料導管の下端部
をフイルタエレメントに対して燃料流通隙間を空
けて套嵌するとともに、気化器の燃料取入口の管
接続部に連通連結したものである。<Means for Solving the Problems> In order to achieve the above object, the present invention arranges a fuel tank at a higher position than the engine's carburetor, as shown in FIGS. 1 to 3, and A fuel intake port is provided at the bottom of the carburetor, a filter element mounting part and a pipe connection part are formed at the fuel intake port of the carburetor, a filter screen part is provided on the circumferential surface of the cylindrical filter element, and an element outlet is provided at the base end of the filter element. The element outlet portion of the cylindrical filter element is fitted and fixed in a communicating manner to the filter element mounting portion of the fuel intake port of the carburetor, and the upper end portion of the fuel conduit is connected in communication with the fuel outlet port of the fuel tank. The lower end of the fuel conduit is fitted over the filter element with a fuel flow gap left therebetween, and is connected in communication with the pipe connection portion of the fuel intake port of the carburetor.
＜効果＞
本考案では、上述のように構成したので、下記
の効果を奏する。<Effects> Since the present invention is configured as described above, the following effects are achieved.
気化器の燃料取入口にフイルタエレメント
を、燃料導管で套嵌する状態で、取付けたの
で、フイルタエレメントを収容するフイルタ本
体を省略することができ、安価に実施できる。 Since the filter element is attached to the fuel intake port of the carburetor in a manner that it is fitted over the fuel conduit, the filter body that houses the filter element can be omitted, and the present invention can be implemented at low cost.
気化器の燃料取入口から燃料導管を取外すだ
けで、フイルタエレメントを外部に露出させる
ことができるので、このままフイルタエレメン
トの掃除作業が行なえ、手間がかからない。 The filter element can be exposed to the outside by simply removing the fuel conduit from the fuel intake port of the carburetor, so the filter element can be cleaned without any effort.
燃料導管中にフイルタエレメントを配設する
ので、常にフイルタエレメント全体で燃料をろ
過することができて、ろ過能力が高いうえ、長
期に亘つてフイルタエレメントの目詰まりが防
がれる。 Since the filter element is disposed in the fuel conduit, fuel can always be filtered through the entire filter element, providing high filtration ability and preventing clogging of the filter element over a long period of time.
フイルタエレメントの能力アツプを図るため
に、フイルタエレメントを大型化した場合に
も、各種大型化した（長くした）フイルタエレ
メントを燃料導管内に配設すればよく、燃料導
管を大型化し、配設スペースを増大化する必要
はない。 In order to increase the capacity of the filter element, even if the filter element is made larger, it is only necessary to install various larger (longer) filter elements in the fuel pipe. There is no need to increase it.
＜実施例＞ 以下、本考案の実施例を図面に基き説明する。<Example> Embodiments of the present invention will be described below with reference to the drawings.
第１図は強制空冷灯油エンジンの一部切欠き正
面図を示し、このエンジン１はクランクケース２
の前面にフアンケース３を取付け、フアンケース
３の上方には燃料タンクＴが設けてある。 Figure 1 shows a partially cutaway front view of a forced air-cooled kerosene engine.
A fan case 3 is attached to the front of the fan case 3, and a fuel tank T is provided above the fan case 3.
この燃料タンクＴは灯油燃料用の主燃料タンク
４と、ガソリン燃料用の始動燃料タンク５とから
なる。 This fuel tank T consists of a main fuel tank 4 for kerosene fuel and a starting fuel tank 5 for gasoline fuel.
主燃料タンク４は底板の下面４ａに設けたブラ
ケツト６を介してエンジン１に取り付けてあり、
主燃料タンク４のシーム鍔部７に始動燃料タンク
５が取付金具８を介して取り付けてある。 The main fuel tank 4 is attached to the engine 1 via a bracket 6 provided on the bottom surface 4a of the bottom plate.
A starting fuel tank 5 is attached to a seam flange 7 of the main fuel tank 4 via a fitting 8.
そして、主燃料タンク４の燃料取出口９部分の
ブラケツト６にコツク付フイルタ１０が固着され
フイルタ１０で過された燃料は主燃料供給管１
１を通じてエンジン１の側方へ設けてある気化器
１２の主燃料取入口１３に供給されるようになつ
ている。 A filter 10 with a lock is fixed to the bracket 6 at the fuel outlet 9 of the main fuel tank 4, and the fuel passed through the filter 10 is transferred to the main fuel supply pipe 1.
1, the fuel is supplied to a main fuel intake port 13 of a carburetor 12 provided on the side of the engine 1.
始動燃料タンク５の燃料は、下部に開口した燃
料取出口１４からこれと気化器１２の燃料取入口
１５とに亘つて設けた燃料導管１６を通じて気化
器１２に供給されるようになつている。 Fuel in the starting fuel tank 5 is supplied to the carburetor 12 from a fuel intake port 14 opened at the bottom through a fuel conduit 16 provided between this and a fuel intake port 15 of the carburetor 12.
燃料導管１６を接続した気化器１２の燃料取入
口１５は第３図に示すようになつている。 The fuel intake port 15 of the carburetor 12 to which the fuel conduit 16 is connected is as shown in FIG.
即ち、燃料取入口１５は、気化器１２の側壁１
２ａをボス状に膨出形成し、その内部に燃料入口
孔１７と弁体組込孔１８とを明け、弁体組込孔１
８に螺締した手動弁装置１９で燃料入口孔１７を
蓋するとともに、手動弁装置１９と弁体組込孔１
８との間に給油ジヨイント２０を挾着させて構成
してある。 That is, the fuel intake port 15 is connected to the side wall 1 of the carburetor 12.
2a is formed to bulge into a boss shape, and a fuel inlet hole 17 and a valve body assembly hole 18 are formed inside the valve body assembly hole 1.
The manual valve device 19 screwed into the valve body 8 covers the fuel inlet hole 17, and the manual valve device 19 and the valve body assembly hole 1
A refueling joint 20 is clamped between the oil supply joint 8 and the oil supply joint 20.
給油ジヨイント２０は一側部から前述の燃料導
管１６を接続する管接続部２１が一体に延出形成
され、内部の通油路２２の上部にはフイルタエレ
メント２３が嵌着してある。 The fuel supply joint 20 has a pipe connecting portion 21 integrally formed extending from one side thereof to connect the aforementioned fuel conduit 16, and a filter element 23 is fitted into the upper portion of the internal oil passage 22.
このフイルタエレメント２３は、合成樹脂で有
蓋筒形に形成され、周面に網部２４を、基端部
２５に出口部２６を形成したものである。 This filter element 23 is made of synthetic resin and is formed in the shape of a closed cylinder, and has a mesh portion 24 formed on the circumferential surface and an outlet portion 26 formed at the base end portion 25.
このように形成したフイルタエレメント２３を
給油ジヨイント２０の管接続部２１の通油路２２
に形成したフイルタエレメント取付部２７に嵌着
し、管接続部２１に燃料導管１６を外嵌固定して
手動弁装置１９を開弁すると、始動燃料タンク５
内の燃料が燃料取出口１４から出て燃料導管１６
内を流下してフイルタエレメント２３に達し、こ
こで過されて気化器１２の燃料入口孔１７から
気化器１２内に供給される。 The filter element 23 formed in this way is inserted into the oil passage 22 of the pipe connection part 21 of the oil supply joint 20.
When the manual valve device 19 is opened by fitting the fuel conduit 16 into the filter element mounting portion 27 formed in the pipe connection portion 21 and opening the manual valve device 19, the starting fuel tank 5
The fuel inside comes out from the fuel outlet 14 and flows into the fuel conduit 16.
The fuel flows down through the filter element 23, passes there, and is supplied into the carburetor 12 through the fuel inlet hole 17 of the carburetor 12.
この時、燃料導管１６内にベーパ等の気泡が発
生しても、燃料導管１６から上方へ簡単に逃げ
る。 At this time, even if bubbles such as vapor are generated within the fuel conduit 16, they easily escape upward from the fuel conduit 16.
また、フイルタエレメント２３内に気泡がある
場合でも、第１図に示すように、フイルタエレメ
ント２３が低く位置し、燃料タンク５内の燃料液
面との間のヘツド差Hbが従来技術Ａにおけるヘ
ツド差（フイルタと燃料液面との間のヘツド差）
Haより大きいことから、その重力でフイルタエ
レメント２３内の気泡が従来技術Ａより抜け易く
なる。 Furthermore, even if there are air bubbles in the filter element 23, the filter element 23 is located low, as shown in FIG. difference (head difference between filter and fuel level)
Since it is larger than Ha, the air bubbles in the filter element 23 are more easily removed by the gravity than in the prior art A.
尚、上記実施例では、フイルタエレメント２３
を始動燃料タンク５からの始動燃料を取り入れる
気化器１２の燃料取入口１５に設けたが、主燃料
タンク４の燃料を取り入れる燃料取入口１３に設
けたり、または双方に設けるようにしてもよい。 In addition, in the above embodiment, the filter element 23
is provided at the fuel intake port 15 of the carburetor 12 that takes in starting fuel from the starting fuel tank 5, but it may be provided at the fuel intake port 13 that takes in fuel from the main fuel tank 4, or may be provided on both sides.
図面は本考案の実施例を示し、第１図は強制空
冷エンジンの一部縦断正面図を示し、第２図は要
部の側面図、第３図は要部の拡大縦断面図であ
る。
Ｔ……燃料タンク、１……エンジン、１２……
気化器、１４……燃料取出口、１５……燃料取入
口、１６……燃料導管、２１……管接続部、２３
……フイルタエレメント、２４……網部、２５
……基端部、２６……出口部、２７……フイルタ
エレメント取付部。
The drawings show an embodiment of the present invention, and FIG. 1 shows a partially vertical front view of a forced air-cooled engine, FIG. 2 is a side view of the main part, and FIG. 3 is an enlarged longitudinal sectional view of the main part. T... Fuel tank, 1... Engine, 12...
Carburetor, 14...Fuel outlet, 15...Fuel intake, 16...Fuel conduit, 21...Pipe connection, 23
... Filter element, 24 ... Net section, 25
... Base end part, 26 ... Outlet part, 27 ... Filter element mounting part.
Claims (1)
ンクＴを配置し、燃料タンクＴの下部に燃料取出
口１４を設け、気化器１２の燃料取入口１５にフ
イルタエレメント取付部２７と管接続部２１とを
形成し筒形のフイルタエレメント２３の周面に
網部２４を、その基端部２５にエレメント出口部
２６を形成し、気化器１２の燃料取入口１５のフ
イルタエレメント取付部２７に筒形フイルタエレ
メント２３のエレメント出口部２６を連通状に嵌
合固定し、燃料導管１６の上端部を燃料タンクＴ
の燃料取出口１４に連通連結し、燃料導管１６の
下端部をフイルタエレメント２３に対して燃料流
通隙間を空けて套嵌するとともに、気化器１２の
燃料取入口１５の管接続部２１に連通連結した事
を特徴とするエンジンの燃料供給装置。 A fuel tank T is arranged at a higher position than the carburetor 12 of the engine 1, a fuel intake port 14 is provided at the bottom of the fuel tank T, and a filter element mounting portion 27 and a pipe connection portion 21 are provided in the fuel intake port 15 of the carburetor 12. A cylindrical filter element 23 is formed with a net portion 24 on its peripheral surface, an element outlet portion 26 is formed on its base end 25, and a cylindrical filter element 23 is formed on the filter element mounting portion 27 of the fuel intake port 15 of the carburetor 12. The element outlet portion 26 of the element 23 is fitted and fixed in a communicating manner, and the upper end portion of the fuel conduit 16 is connected to the fuel tank T.
The lower end of the fuel conduit 16 is fitted over the filter element 23 with a fuel flow gap, and the fuel conduit 16 is connected to the pipe connection 21 of the fuel intake port 15 of the carburetor 12. An engine fuel supply device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14352482U JPS5947357U (en) | 1982-09-21 | 1982-09-21 | engine fuel supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14352482U JPS5947357U (en) | 1982-09-21 | 1982-09-21 | engine fuel supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5947357U JPS5947357U (en) | 1984-03-29 |
| JPH0141913Y2 true JPH0141913Y2 (en) | 1989-12-08 |
Family
ID=30320344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14352482U Granted JPS5947357U (en) | 1982-09-21 | 1982-09-21 | engine fuel supply system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947357U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522463B2 (en) * | 1972-04-17 | 1977-01-21 | ||
| JPS5713138U (en) * | 1980-06-30 | 1982-01-23 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556661Y2 (en) * | 1975-06-24 | 1980-02-15 |
-
1982
- 1982-09-21 JP JP14352482U patent/JPS5947357U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522463B2 (en) * | 1972-04-17 | 1977-01-21 | ||
| JPS5713138U (en) * | 1980-06-30 | 1982-01-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5947357U (en) | 1984-03-29 |
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