JPS648166B2 - - Google Patents
Info
- Publication number
- JPS648166B2 JPS648166B2 JP1503381A JP1503381A JPS648166B2 JP S648166 B2 JPS648166 B2 JP S648166B2 JP 1503381 A JP1503381 A JP 1503381A JP 1503381 A JP1503381 A JP 1503381A JP S648166 B2 JPS648166 B2 JP S648166B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- lubricant
- tank
- lubricating oil
- tube
- 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
- 239000002828 fuel tank Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000010687 lubricating oil Substances 0.000 claims description 58
- 241000234435 Lilium Species 0.000 claims description 10
- 239000000446 fuel Substances 0.000 abstract description 23
- 239000000314 lubricant Substances 0.000 abstract description 16
- 239000003921 oil Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M3/00—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
-
- 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
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
この発明は２サイクルエンジン用燃料タンクの
潤滑油混入装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to a lubricating oil mixing device for a fuel tank for a two-stroke engine.
（従来の技術）
従来、２サイクルエンジンは燃料タンクに燃料
と潤滑油を25：１程度の一定割合で混入した混合
油を入れ、この混合油に含まれた潤滑油でエンジ
ンの摺動各部分を潤滑していた。最近ではエンジ
ンにオイルポンプを連動させ、エンジン回転とア
クセル開度に応じた小量の潤滑油をエンジンのク
ランク室等に注入して潤滑するものも広く用いら
れている。このオイルポンプは高い精度を要し、
加工に手間がかかつて製造コストが高いので、小
型で安価な２サイクルエンジンにはコスト高にな
つて使えない。また、ガソリンスタンド等で混合
油も売られないほどオイルポンプ型のものが普及
しているので、オイルポンプを用いない安価な２
サイクルエンジンにしようとすると、使用者が燃
料と潤滑油を購入して、自分で混合油を作らなけ
ればならず、手間がかかる等の問題がある。(Prior art) Conventionally, in a two-stroke engine, a mixed oil containing fuel and lubricating oil at a constant ratio of about 25:1 is placed in a fuel tank, and the lubricating oil contained in this mixed oil is used to protect each sliding part of the engine. was lubricated. Recently, a system in which an oil pump is linked to the engine, and a small amount of lubricating oil is injected into the engine's crank chamber or the like according to the engine rotation and accelerator opening to lubricate the engine is also widely used. This oil pump requires high precision,
Since it is time-consuming to process and the manufacturing cost is high, it cannot be used in small and inexpensive 2-stroke engines due to the high cost. In addition, oil pump type oil pumps are so popular that mixed oil is no longer sold at gas stations, etc., so there are cheaper oil pumps that do not use oil pumps.
If a cycle engine is used, the user has to purchase fuel and lubricating oil and make his or her own mixed oil, which is time-consuming and other problems.
そこで、第３図に示すように、燃料タンクａ内
に、下端にフロートｂを設けそのフロートｂによ
つて伸縮する蛇腹ｃを装着し、上記蛇腹ｃの頂部
に潤滑油流入口ｄと出口ｅとを設け、上記潤滑油
流入口ｄをフロート弁ｆを介して潤滑油タンクｇ
に連結し、出口ｅを注油筒ｈに開口させ、注油時
の燃料タンク内のレベルの上昇による蛇腹ｃの収
縮によつて、内部の潤滑油を注油中に流入させる
ようにしたものも提案されている（特開昭54−
142434号公報）。 Therefore, as shown in FIG. 3, a float b is provided at the lower end of the fuel tank a, and a bellows c that expands and contracts by the float b is attached, and a lubricating oil inlet d and an outlet e are attached to the top of the bellows c. and the lubricating oil inlet d is connected to the lubricating oil tank g via the float valve f.
It has also been proposed that the lubricating oil inside is connected to the lubricating cylinder h and the outlet e is opened to the lubricating cylinder h, so that the lubricating oil inside is caused to flow in during lubricating by contracting the bellows c due to the rise in the level in the fuel tank during lubricating. (Unexamined Japanese Patent Publication No. 1973-
Publication No. 142434).
（発明が解決しようとする課題）
ところが、このようなものにおいては、蛇腹の
伸縮によつて潤滑油の供給を行なうものであるた
め、蛇腹が破損する可能性があり、しかも蛇腹に
負圧がかかつた場合に蛇腹が内側に変形し正常な
潤滑油の吸入が行なわれなくなることがある等の
問題がある。(Problem to be Solved by the Invention) However, in such a device, lubricating oil is supplied by the expansion and contraction of the bellows, so there is a possibility that the bellows will be damaged, and moreover, negative pressure will be applied to the bellows. If this happens, there are problems such as the bellows deforming inward and the lubricating oil not being sucked properly.
本発明はこのような点に鑑み、燃料タンクへの
燃料の注入時に、潤滑油タンクから、注入燃料に
対応して所定量の潤滑油を確実に燃料内に混合し
得る潤滑油混合装置を得ることを目的とする。 In view of these points, the present invention provides a lubricating oil mixing device that can reliably mix a predetermined amount of lubricating oil from a lubricating oil tank into fuel corresponding to the injected fuel when fuel is injected into the fuel tank. The purpose is to
（課題を解決するための手段）
本発明は、燃料タンク内一側に下端を開放した
プレツシヤチヤンバを設け、該プレツシヤチヤン
バの上端を密閉した潤滑油タンクの上端に空気チ
ユーブを介して連結し、一端が潤滑油タンクの底
部に開口する潤滑油チユーブの他端を、燃料タン
クの注入管に設けたベンチユリに連結したことを
特徴とする。
(Means for Solving the Problems) The present invention provides a pressure chamber with an open lower end on one side of the fuel tank, and connects the upper end of the pressure chamber to the upper end of the lubricating oil tank through an air tube. One end of the lubricating oil tube opens at the bottom of the lubricating oil tank, and the other end of the lubricating oil tube is connected to a bench lily provided in the injection pipe of the fuel tank.
（作用）
燃料タンク内に燃料を注入し始めると、ベンチ
ユリによるベンチユリ効果によつて潤滑油が注入
管内に吸引されるとともに、プレツシヤチヤンバ
を介して潤滑油タンク内の圧力が上昇し、その圧
力上昇によつて潤滑油チユーブを介して潤滑油が
注入管内に流入し、燃料と混合して燃料タンク内
に流入する。(Function) When fuel starts to be injected into the fuel tank, the lubricating oil is sucked into the injection pipe by the bench lily effect, and the pressure in the lubricating oil tank increases through the pressure chamber. Due to the increase in pressure, lubricating oil flows into the injection pipe through the lubricating oil tube, mixes with fuel, and flows into the fuel tank.
したがつて、流入燃料に対して常に所定割合の
潤滑油が自動的に供給される。 Therefore, a predetermined proportion of lubricating oil is always automatically supplied to the inflowing fuel.
（実施例）
以下、第１図および第２図を参照して本発明の
一実施例について説明する。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.
燃料タンク１内の一側には、下端を開放して燃
料タンク１内とつながつたプレツシヤチヤンバ２
が設けられている。プレツシヤチヤンバ２の上端
は空気チユーブ３で別に設けた潤滑油タンク４の
上端に連結されている。上記潤滑油タンク４は栓
５によつて密閉されている。又、潤滑油タンク４
には上部から潤滑油タンク４の底部に開口するよ
うに潤滑油チユーブ６が挿入されており、その他
端が燃料タンク１の注入管７の途中に設けたベン
チユリ８に連結されている。また燃料タンク１に
は、下底に取出口９があり、１０はコツクを示
す。 On one side of the fuel tank 1 is a pressure chamber 2 that is connected to the inside of the fuel tank 1 with its lower end open.
is provided. The upper end of the pressure chamber 2 is connected to the upper end of a separately provided lubricating oil tank 4 through an air tube 3. The lubricating oil tank 4 is hermetically sealed with a plug 5. Also, lubricating oil tank 4
A lubricating oil tube 6 is inserted into the lubricating oil tank 4 so as to open from the top to the bottom of the lubricating oil tank 4, and the other end is connected to a bench lily 8 provided in the middle of an injection pipe 7 of the fuel tank 1. Further, the fuel tank 1 has an outlet 9 at the bottom, and 10 indicates a hole.
作用について説明する。 The effect will be explained.
燃料タンク１内の燃料の残量が少なくなり、燃
料補充を開始すると、第１図に示すように、燃料
タンク１内の油面が上昇し、それに伴なつてプレ
ツシヤチヤンバ２内の油面も上昇する。そして、
ヘツド差H1の圧力で空気を圧縮する。この圧力
は潤滑タンク４内にも及び、潤滑油タンク４内の
潤滑油を潤滑油チユーブ６に押上げる。一方、注
入管７のベンチユリ８は注入される燃料の流速で
負圧になつているので、潤滑油が潤滑油チユーブ
６に流れてベンチユリ８に流れ出し、注入する燃
料に混入する。一度、潤滑油が潤滑油チユーブ６
に流れ出すと、サイフオン効果で流れが継続す
る。 When the remaining amount of fuel in the fuel tank 1 becomes low and fuel replenishment is started, the oil level in the fuel tank 1 rises and the oil level in the pressure chamber 2 rises as shown in FIG. The surface also rises. and,
Compress the air with a pressure of head difference H 1 . This pressure also extends into the lubricating oil tank 4 and pushes up the lubricating oil in the lubricating oil tank 4 into the lubricating oil tube 6. On the other hand, since the vent lily 8 of the injection pipe 7 has a negative pressure due to the flow rate of the injected fuel, the lubricating oil flows into the lubricating oil tube 6 and flows out to the vent lily 8, where it mixes with the fuel to be injected. Once the lubricant is in the lubricant tube 6
Once it begins to flow, the flow continues due to the siphon effect.
したがつて、潤滑油はプレツシヤチヤンバによ
る圧縮、ベンチユリ効果およびサイフオン効果に
よつて燃料タンク１内に供給される。そこで、燃
料を所定量注入し終りその注入を止めると、第２
図に示すように、サイフオン効果による潤滑油の
流れで潤滑油タンク４内が負圧になり、ヘツド差
H2で、潤滑油の流れと潤滑油タンク４内の負圧
が均合うと潤滑油の流れも止る。こうして燃料タ
ンク１に燃料を注入するとき、それに応じて所定
割合分の潤滑油がベンチユリ８に流れ出して、燃
料タンク１内に混合油ができる。 Therefore, the lubricating oil is supplied into the fuel tank 1 by compression by the pressure chamber, the bench effect and the siphon effect. Therefore, when the predetermined amount of fuel is injected and the injection is stopped, the second
As shown in the figure, the flow of lubricating oil due to the siphon effect creates negative pressure inside the lubricating oil tank 4, causing a head difference.
At H2 , when the flow of lubricating oil and the negative pressure in the lubricating oil tank 4 are equalized, the flow of lubricating oil also stops. In this way, when fuel is injected into the fuel tank 1, a predetermined proportion of lubricating oil flows into the vent lily 8, and a mixed oil is formed in the fuel tank 1.
以上説明したように、この発明は、燃料タンク
内の一側に下端を開放したプレツシヤチヤンバを
設け、該プレツシヤチヤンバの上端を密閉した潤
滑油タンクの上端に空気チユーブを介して連結
し、一端が潤滑油タンクの底部に開口する潤滑油
チユーブの他端を、燃料タンクの注入管に設けた
ベンチユリに連結したので、注入管から燃料を補
充すると、それに伴つて潤滑油タンクから所定割
合分の潤滑油が潤滑油チユーブを通つてベンチユ
リに流れ、燃料に混入する。こうして燃料タンク
に燃料を補充するだけで、自動的に燃料タンクに
所定割合の混合油ができ、混合油を作る手間が省
ける。
As explained above, the present invention provides a pressure chamber with an open lower end on one side of a fuel tank, and connects the upper end of the pressure chamber to the upper end of a sealed lubricating oil tank via an air tube. The other end of the lubricating oil tube, one end of which opens at the bottom of the lubricating oil tank, is connected to the vent lily installed in the fuel tank's injection pipe, so that when fuel is refilled from the injection pipe, a specified amount of fuel is removed from the lubricating oil tank. A proportion of the lubricant flows through the lubricant tube to the vent lily and mixes with the fuel. In this way, just by refilling the fuel tank with fuel, a predetermined ratio of mixed oil is automatically created in the fuel tank, saving the effort of making mixed oil.
また潤滑油の使用割合は少いので、一度潤滑油
タンクを満しておけば何回もの燃料補充ができ
る。 Also, since the lubricating oil usage rate is small, once the lubricating oil tank is filled, it can be refilled many times.
しかも、プレツシヤチヤンバは単に筒状に形成
すればよく機械的に作動する部分がなく、長期間
の使用でも全く問題がなく、部品点数も少い等の
効果を奏する。 Moreover, the pressure chamber only needs to be formed into a cylindrical shape, and there are no mechanically operating parts, so there is no problem with long-term use, and the number of parts is small.
第１図は本発明の潤滑油混合装置における燃料
補充開始時の状態の縦断面図、第２図は補充完了
直後の状態の縦断面図、第３図は従来の潤滑油混
合装置の縦断面図である。
１……燃料タンク、２……プレツシヤチヤン
バ、３……空気チユーブ、４……潤滑油タンク、
６……潤滑油チユーブ、７……注入管、８……ベ
ンチユリ。
Fig. 1 is a longitudinal cross-sectional view of the lubricating oil mixing device of the present invention when fuel replenishment starts, Fig. 2 is a longitudinal cross-sectional view of the lubricating oil mixing device of the present invention immediately after replenishment is completed, and Fig. 3 is a longitudinal cross-sectional view of a conventional lubricating oil mixing device. It is a diagram. 1... Fuel tank, 2... Pressure chamber, 3... Air tube, 4... Lubricating oil tank,
6... Lubricating oil tube, 7... Injection pipe, 8... Bench lily.
Claims (1)
シヤチヤンバを設け、該プレツシヤチヤンバの上
端を密閉した潤滑油タンクの上端に空気チユーブ
を介して連結し、一端が潤滑油タンクの底部に開
口する潤滑油チユーブの他端を、燃料タンクの注
入管に設けたベンチユリに連結したことを特徴と
する２サイクルエンジン用燃料タンクの潤滑油混
入装置。1. A pressure chamber with an open lower end is provided on one side of the fuel tank, and the upper end of the pressure chamber is connected to the upper end of the sealed lubricating oil tank via an air tube, and one end is connected to the bottom of the lubricating oil tank. 1. A lubricating oil mixing device for a fuel tank for a two-stroke engine, characterized in that the other end of a lubricating oil tube that opens at the bottom is connected to a bench lily provided in an injection pipe of the fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1503381A JPS57129212A (en) | 1981-02-05 | 1981-02-05 | Lubricant mixing device of fuel tank for 2-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1503381A JPS57129212A (en) | 1981-02-05 | 1981-02-05 | Lubricant mixing device of fuel tank for 2-cycle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57129212A JPS57129212A (en) | 1982-08-11 |
| JPS648166B2 true JPS648166B2 (en) | 1989-02-13 |
Family
ID=11877516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1503381A Granted JPS57129212A (en) | 1981-02-05 | 1981-02-05 | Lubricant mixing device of fuel tank for 2-cycle engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57129212A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019023737A1 (en) * | 2017-07-31 | 2019-02-07 | Swanson Ryan | Fuel and oil mixing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142434A (en) * | 1978-04-28 | 1979-11-06 | Suzuki Motor Co Ltd | Fuel tank for two-cycle engine |
-
1981
- 1981-02-05 JP JP1503381A patent/JPS57129212A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57129212A (en) | 1982-08-11 |
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