JP4664729B2 - Petroleum fuel / ethanol mixing adjustment system mounted on the driver - Google Patents
Petroleum fuel / ethanol mixing adjustment system mounted on the driver Download PDFInfo
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本発明は、自動車、船舶等の駆動体のエンジン燃料として現在使用されているガソリン、軽油等の石油系燃料にエタノールを一定割合で混合してエンジンに供給する駆動体搭載式の石油系燃料・エタノール混合調整装置に関する。 The present invention is an automobile, Present gasoline being used, petroleum fuel of an engine to supply driving body-mounted mixed petroleum-based fuel ethanol at a constant rate such gas oil as an engine fuel of the driver, such as a ship The present invention relates to an ethanol mixing adjustment device .
従来、地球の温室効果ガスを削減するため、自動車のエンジン燃料についてもその改善が望まれており、その改善策の一つとして従来使用されているガソリン、軽油等の石油系燃料にエタノールを混合したエタノール混合燃料の使用が提唱されている。 Conventionally, in order to reduce global greenhouse gases, improvement of automobile engine fuel is also desired, and ethanol is mixed with petroleum-based fuels such as gasoline and light oil that have been used in the past as one of the improvement measures. The use of mixed ethanol fuel has been proposed.
そこで、従来、ガソリン販売業者がガソリンに代えてエタノール混合燃料の大量販売について実際に即した検討を行った結果、既存の地下タンク、配管、給油装置等の従来施設をそのまま使用すると錆が発生することから、どうしても施設全体を一新しなければならず、その経済的負担が巨額にのぼることが分り、現在計画の見直しに迫られているのが実情である。 Therefore, as a result of conventional investigations by mass sales of ethanol- mixed fuel instead of gasoline by gasoline dealers, rust occurs when existing facilities such as existing underground tanks, pipes, and fueling devices are used as they are. Therefore, it is unavoidable that the entire facility must be completely renewed, and that the economic burden is enormous, and the current plan is being reviewed.
本発明は、自動車等の駆動体において、エタノール貯留タンク等は新たに搭載するが、エンジンに対しては、腐食を生じさせない一定割合でエタノールを確実に混合した燃料を供給し、それにより経済的負担を軽減することの可能な駆動体搭載型の石油系燃料・エタノール混合調整装置を提供することを課題とする。 The present invention is a driving body such as an automobile, ethanol storage tank or the like is newly mounted, with respect to the engine, it supplies the fuel that has reliably mixed ethanol at a constant rate which does not cause corrosion, thereby economically It is an object of the present invention to provide a drive body-mounted petroleum-based fuel / ethanol mixing adjustment device capable of reducing the burden .
上記課題を解決するため、本発明は、
駆動体に、混合タンク、該混合タンクより高所にエタノールタンク、及び石油系燃料タンクをそれぞれ搭載し、上記混合タンクに、上記エタノールタンクから電磁弁を介してエタノール供給管を、及び上記石油系燃料タンクから電動ポンプを介して石油系燃料供給管をそれぞれ接続し、
上記混合タンク内に１本のステムを垂下し、該ステムに、上部ストッパーと下部ストッパー間で昇降自在の自己保持型上部フロートスイッチと、その下位において上部ストッパーと下部ストッパー間で昇降自在の自己保持型下部フロートスイッチとを摺動自在に支持させ、
上記上部フロートスイッチは、上昇して上部ストッパーに接したときＯＮになってＯＮを自己保持し、又上記下部フロートスイッチは、降下して下部ストッパーに接したときＯＮになってＯＮを自己保持する位置関係にあり、
上記上部フロートスイッチにタイマーを接続すると共に該タイマーに上記エタノール供給管の電磁弁を接続し、該上部フロートスイッチのＯＮにより上記タイマーの設定時間のカウント開始と同時に、上記電磁弁を開いて上記混合タンクへエタノール供給を開始し、設定時間経過により上記電磁弁を閉じるようにし、
上記下部フロートスイッチに上記石油系燃料供給管の電動ポンプを接続し、該下部フロートスイッチのＯＮにより上記電動ポンプを始動して上記混合タンクへ石油系燃料供給を開始し、上記上部フロートスイッチのＯＮ信号により上記下部フロートスイッチをＯＦＦにして上記電動ポンプを停止させるようにした、
駆動体に搭載式の石油系燃料・エタノール混合調整装置を提案する。
In order to solve the above problems, the present invention provides:
A drive tank is equipped with a mixing tank, an ethanol tank and a petroleum fuel tank above the mixing tank, respectively, an ethanol supply pipe from the ethanol tank through an electromagnetic valve to the mixing tank, and the petroleum system. Each oil-based fuel supply pipe is connected from the fuel tank via an electric pump,
A single stem is suspended in the mixing tank, and a self-holding type upper float switch that can be raised and lowered between the upper stopper and the lower stopper, and a self-holding that can be raised and lowered between the upper stopper and the lower stopper below it. The lower mold float switch is supported slidably,
The upper float switch is turned on and self-holds when the upper float switch comes into contact with the upper stopper, and the lower float switch is turned on and self-holds when the lower float switch descends and comes into contact with the lower stopper. In a positional relationship,
A timer is connected to the upper float switch, and an electromagnetic valve of the ethanol supply pipe is connected to the timer. When the upper float switch is turned ON, the solenoid valve is opened and the mixing valve is opened. Start supplying ethanol to the tank and close the solenoid valve when the set time has elapsed.
An electric pump of the petroleum fuel supply pipe is connected to the lower float switch. When the lower float switch is turned on, the electric pump is started to start supplying petroleum fuel to the mixing tank, and the upper float switch is turned on. The lower float switch is turned off by a signal to stop the electric pump.
We propose an oil-based fuel / ethanol mixing adjustment system mounted on the drive body.
本発明の駆動体搭載式の石油系燃料・エタノール混合調整装置によれば、駆動体にエタノールタンク及び混合タンクを新たに搭載するだけの低コストで足りるから、経済的負担を軽減することができ、しかも混合タンクにおける上部及び下部フロートスイッチ等からなる供給量管理装置により石油系燃料及びエタノールの混合タンクへの各供給量を制御することができ、特にエタノールを、エンジン等その他の付属機器を腐食させることのない一定割合に確実に且つ自動的に混合して、その安全性を確保することができるものであって、その使用価値は極めて高い。 According to the drive unit- mounted petroleum-based fuel / ethanol mixing and adjusting device of the present invention, the cost can be reduced by simply installing an ethanol tank and a mixing tank on the drive unit. Moreover, each supply amount to the mixing tank of petroleum-based fuel and ethanol can be controlled by the supply amount control device consisting of the upper and lower float switch etc. in the mixing tank, especially corroding ethanol and other accessory equipment such as engine mixed reliably and automatically a certain percentage never be, a shall be able to ensure its safety, its value in use is extremely high.
本発明における上記エタノールの「上記駆動体のエンジン、その他の付属機器を腐食しない濃度」とは、約５％以下である。 In the present invention, the “concentration that does not corrode the engine of the driving body and other accessory devices” of the ethanol is about 5% or less.
又、上記混合タンクの「撹拌手段」には、撹拌羽根を有する各種撹拌ロッドを混合タンク内に配置したもの、エンジンからの戻り燃料を混合タンク内の油中に放出させるもの、その他種々の撹拌手段が使用される。 In addition, the “stirring means” of the mixing tank includes various stirring rods having stirring blades arranged in the mixing tank, those that discharge the return fuel from the engine into the oil in the mixing tank, and other various stirring. Means are used.
さらに、上記「混合タンク内への石油系燃料の一定量供給」と「エタノールの所要量供給」とは、石油系燃料及びエタノールのいずれか一方を先に供給し、その後に他方を供給すること、及び両者を同時に供給することを含む。
以下図面を参照して本発明の実施例について説明する。
Furthermore, the above-mentioned “a fixed amount supply of petroleum-based fuel into the mixing tank” and “required supply of ethanol” supply either petroleum-based fuel or ethanol first, and then supply the other. And supplying both at the same time.
Embodiments of the present invention will be described below with reference to the drawings.
図１は、軽油を燃料とするディーゼルエンジンを備えたトラックに本発明のエタノール混合燃料調整装置を搭載した例で、混合タンク（１）及びエタノールタンク（２）を新たに搭載し、その混合タンク（１）に、既設の燃料タンク（３）に一端を接続された軽油供給管（４）の他端を、又エタノールタンク（２）に一端を接続されたエタノール供給管（５）の他端をそれぞれ接続し、これら供給管（４）、（５）を経て供給される軽油とエタノールを混合し、該エタノール混合燃料を、上記混合タンク（１）と、フィードポンプ（６）の吸入口（７）とに接続されたエタノール混合燃料吸入管（８）、ついで該フィードポンプ（６）の吐出口（９）と、ストレーナー（１０）を介して噴射ポンプ（１１）の燃料入口（１２）とに接続されたエタノール混合燃料吐出管（１３）を経て噴射ポンプ（１１）に供給し、該噴射ポンプ（１１）の駆動によりディーゼルエンジンの各気筒内に噴射ノズル（１４）…を介して噴射する。 FIG. 1 shows an example in which an ethanol mixed fuel adjusting device according to the present invention is mounted on a truck equipped with a diesel engine using light oil as a fuel. A mixing tank (1) and an ethanol tank (2) are newly mounted, and the mixing tank is installed. (1) The other end of the light oil supply pipe (4) connected at one end to the existing fuel tank (3) and the other end of the ethanol supply pipe (5) connected at one end to the ethanol tank (2) Are connected to each other, and light oil and ethanol supplied through these supply pipes (4) and (5) are mixed, and the ethanol mixed fuel is mixed with the mixing tank (1) and the suction port (6) of the feed pump (6). 7) the ethanol mixed fuel intake pipe (8) connected to the discharge pump (6), the discharge port (9) of the feed pump (6), and the fuel inlet (12) of the injection pump (11) via the strainer (10). Connected to Is supplied to the injection pump through methanol mixed fuel discharge pipe (13) (11), the injection nozzle (14) into the respective cylinders of the diesel engine by the drive of the injection pump (11) ... injects through.
上記混合タンク（１）及びエタノールタンク（２）の構造、及び混合タンク（１）への軽油とエタノールの供給量を一定に管理する供給量管理装置について次に説明する。図２において、混合タンク（１）はステンレス鋼製の密閉箱形のもので、その上板（１５）四隅にアーム（１６）…を突設してあり、一方、エタノールタンク（２）は底板（１７）をゆるく傾斜させた同じくステンレス鋼製の密閉箱形のもので、その傾斜底板（１７）四隅にアーム（１８）…を突設してあり、そのアーム（１８）…を混合タンク（１）のアーム（１６）…にピン（１９）…によりそれぞれ連結して、該エタノールタンク（２）を混合タンク（１）上に適宜間隔をあけて支持してある。 Next, the structure of the mixing tank (1) and the ethanol tank (2), and the supply amount management apparatus for managing the supply amounts of light oil and ethanol to the mixing tank (1) at a constant level will be described. In FIG. 2, the mixing tank (1) is a closed box type made of stainless steel, and arms (16)... Are projected at the four corners of the upper plate (15), while the ethanol tank (2) is a bottom plate. (17) is a closed box type made of stainless steel with a gentle inclination, and arms (18)... Are projected at the four corners of the inclined bottom plate (17), and the arms (18). The ethanol tank (2) is supported on the mixing tank (1) at appropriate intervals by being connected to the arms (16) of 1) by pins (19), respectively.
上記エタノール供給管（５）は電磁弁（２０）を有するステンレス鋼製のもので、その管一端をエタノールタンク（２）の最深部に対応する側板（２１）下端部に接続すると共に、管他端を上記混合タンク（１）の上板（１５）に接続し、それによりエタノールを落差により混合タンク（１）に供給するようにしてある。 The ethanol supply pipe (5) is made of stainless steel having a solenoid valve (20). One end of the pipe is connected to the lower end of the side plate (21) corresponding to the deepest part of the ethanol tank (2), and other pipes and the like. The end is connected to the upper plate (15) of the mixing tank (1), whereby ethanol is fed to the mixing tank (1) by a drop.
上記軽油供給管（４）は電動ポンプ（２２）を有し、その管他端を上記混合タンク（１）の上板（１５）に接続してある。 The light oil supply pipe (4) has an electric pump (22), and the other end of the pipe is connected to the upper plate (15) of the mixing tank (1).
上記軽油及びエタノールの供給量管理装置として、上記混合タンク（１）内中央部に、上端を閉成し、下端を開口した円筒状の防波筒（２３）を、筒下端をタンク内底面近くまで垂下した状態で、タンク上板（１５）に支持し、この防波筒（２３）内に、上部フロートスイッチ（２４）及び下部フロートスイッチ（２５）を有するステム（２６）を垂下した状態で、ステム（２６）上端部を防波筒（２３）の上端板（２７）に支持してある。 As a supply amount control device for the light oil and ethanol, a cylindrical wave-proof tube (23) having an upper end closed and a lower end opened at the center portion of the mixing tank (1), and a lower end of the tube near the bottom surface of the tank. In a state where it is suspended to the tank upper plate (15), a stem (26) having an upper float switch (24) and a lower float switch (25) is suspended in the wave-proof cylinder (23). The upper end portion of the stem (26) is supported by the upper end plate (27) of the wave-proof cylinder (23).
上記上部及び下部フロートスイッチ（２４）、（２５）は自己保持回路（２８）、（２９）をそれぞれ有する自己保持型スイッチで、そのうち上部フロートスイッチ（２４）は、上記ステム（２６）に設けられた上部及び下部ストッパー（３０）、（３１）の間で、ステム（２６）に沿って小距離上下摺動可能であって、上部ストッパー（３０）に接したときスイッチＯＮになると共に自己保持回路（２８）によりＯＮを保持するものであり、又下部フロートスイッチ（２５）も、同じく上部及び下部ストッパー（３２）、（３３）の間で上下摺動可能であって、下部ストッパー（３３）に接したときスイッチＯＮになると共に自己保持回路（２９）によりＯＮを保持するものである。 The upper and lower float switches (24) and (25) are self-holding switches each having a self-holding circuit (28) and (29), and the upper float switch (24) is provided on the stem (26). Between the upper and lower stoppers (30), (31), it can slide up and down a short distance along the stem (26). When it comes into contact with the upper stopper (30), the switch is turned on and a self-holding circuit. (28) holds ON, and the lower float switch (25) is also slidable vertically between the upper and lower stoppers (32) and (33), and is attached to the lower stopper (33). When it comes into contact, the switch is turned ON and ON is held by the self-holding circuit (29).
上記のような上部フロートスイッチ（２４）に、図３に示すようにタイマー（３４）を接続し、上記スイッチ（２４）のＯＮにより該タイマー（３４）の設定時間のカウント作動を開始し、さらに上記タイマー（３４）に上記電磁弁（２０）を接続し、上記タイマー（３４）の作動開始と同時に上記電磁弁（２０）を開き、上記タイマー（３４）の設定時間の経過まで開弁を継続してエタノールタンク（２）のエタノールを上記開弁時間に相当する量だけ混合タンク（１）に供給するようにしてある。上記タイマー（３４）のカウント作動を停止したときは、その信号により上記保持回路（２８）の自己保持を解除して上部フロートスイッチ（２４）をＯＦＦにするようにしてある。 As shown in FIG. 3, a timer (34) is connected to the upper float switch (24) as described above, and when the switch (24) is turned on, a count operation of the set time of the timer (34) is started. The solenoid valve (20) is connected to the timer (34), the solenoid valve (20) is opened simultaneously with the start of the operation of the timer (34), and the valve is kept open until the set time of the timer (34) elapses. Thus, ethanol in the ethanol tank (2) is supplied to the mixing tank (1) by an amount corresponding to the valve opening time. When the counting operation of the timer (34) is stopped, the self-holding of the holding circuit (28) is canceled by the signal and the upper float switch (24) is turned off.
他方の下部フロートスイッチ（２５）には、図３に示すように上記電動ポンプ（２２）を接続し、該フロートスイッチ（２５）のＯＮにより該電動ポンプ（２２）を始動して燃料タンク（３）の軽油を混合タンク（１）へ供給を開始するようにし、又上記上部フロートスイッチ（２４）のＯＮの信号により自己保持回路（２９）の自己保持を解除して下部フロートスイッチ（２５）をＯＦＦにし、電動ポンプ（２２）を停止させ、混合タンク（１）への軽油供給を停止するようにしてある。 As shown in FIG. 3, the electric pump (22) is connected to the other lower float switch (25). When the float switch (25) is turned on, the electric pump (22) is started and the fuel tank (3 ) Is started to supply to the mixing tank (1), and the self-holding of the self-holding circuit (29) is canceled by the ON signal of the upper float switch (24) and the lower float switch (25) is turned on. It is turned off, the electric pump (22) is stopped, and the supply of light oil to the mixing tank (1) is stopped.
上記フィードポンプ（６）に接続された燃料吸入管（８）の他端は、図２に示すように上記防波筒（２３）の上板（２７）を貫通して防波筒（２３）内の開口下端近くまで垂下させてある。 As shown in FIG. 2, the other end of the fuel suction pipe (8) connected to the feed pump (6) passes through the upper plate (27) of the breaker tube (23), and the breaker tube (23). It hangs down near the lower end of the opening.
上記混合タンク（１）内の撹拌手段としては、従来、図１における噴射ポンプ（１１）内の圧力が設定圧力を超えたときリリーフ弁（３５）から流出する燃料をリリーフ管（３６）を経て燃料タンク（３）に戻していたが、本例ではこの戻し燃料を利用する。すなわち、上記リリーフ管（３６）の他端を図２に示すように上記混合タンク（１）の上板（１５）を貫通してタンク内底面近くまで垂下延長し、延長端部をくの字状に回曲してある。このリリーフ管（３６）の先端から噴出されるエタノール混合燃料によりタンク（１）内に供給される軽油とエタノールが撹拌混合されることとなる。 As a stirring means in the mixing tank (1), conventionally, the fuel flowing out from the relief valve (35) when the pressure in the injection pump (11) in FIG. 1 exceeds the set pressure passes through the relief pipe (36). Although it returned to the fuel tank (3), this return fuel is utilized in this example. That is, the other end of the relief pipe (36) extends through the upper plate (15) of the mixing tank (1) as shown in FIG. It is turned into a shape. The light oil and ethanol supplied into the tank (1) are stirred and mixed by the ethanol mixed fuel jetted from the tip of the relief pipe (36).
図２において、（３７）は、エタノールタンク（２）内のエタノール液面が傾斜底板（１７）の最上部に降下したことを検出するフロートスイッチで、その検出信号により警告ブザーを作動させ、それによりエタノールの補給を告知する。（３８）はエタノール補給管である。 In FIG. 2, (37) is a float switch for detecting that the ethanol liquid level in the ethanol tank (2) has dropped to the top of the inclined bottom plate (17). Announce ethanol supply by (38) is an ethanol supply pipe.
なお、上記混合タンク（１）の上板（１５）に気化ガス放出管（３９）の一端を接続すると共に、他端を上記燃料タンク（３）に接続し、該放出管（３９）を通じて混合タンク（１）内に発生する気化ガスを燃料タンク（３）内に供給する。 One end of the vaporized gas discharge pipe (39) is connected to the upper plate (15) of the mixing tank (1), and the other end is connected to the fuel tank (3) and mixed through the discharge pipe (39). The vaporized gas generated in the tank (1) is supplied into the fuel tank (3).
上例の作用を次に説明する。本例では、軽油に対しエタノールを３％の割合で混合する例として、軽油５ｌ（リットル）とエタノール１５０ｃｃを供給する場合について述べる。まず、予め軽油にエタノールを３％混合したエタノール混合燃料を用意し、これを予備燃料として混合タンク（１）内に入れ、その予備燃料の液面（Ｂ）に上記下部フロートスイッチ（２５）が降下したとき該スイッチ（２５）がＯＮとなり、又これに軽油５ｌ供給されたときの液面（Ａ）に上記上部フロートスイッチ（２４）が上昇したとき該スイッチ（２４）がＯＮとなるようにそれぞれ調整しておく。 The operation of the above example will be described next. In this example, a case where 5 l (liter) of light oil and 150 cc of ethanol are supplied is described as an example of mixing ethanol at a ratio of 3% to light oil. First, an ethanol-mixed fuel in which 3% ethanol is mixed with light oil is prepared, and this is put into a mixing tank (1) as a spare fuel. The lower float switch (25) is placed on the liquid level (B) of the spare fuel. The switch (25) is turned on when lowered, and the switch (24) is turned on when the upper float switch (24) is raised to the liquid level (A) when 5 liters of light oil is supplied thereto. Adjust each one.
次に、上記電磁弁（２０）を開閉すべきタイマー（３４）の設定時間すなわち電磁弁（２０）を開いておく時間を、エタノール１５０ｃｃを供給するに必要な時間に調整しておく。 Next, the set time of the timer (34) for opening and closing the electromagnetic valve (20), that is, the time for opening the electromagnetic valve (20) is adjusted to the time necessary for supplying 150 cc of ethanol.
混合タンク（１）内のエタノール混合燃料の液面が（Ｂ）に降下したとき、下部フロートスイッチ（２５）がＯＮとなり、それにより電動ポンプ（２２）が始動して燃料タンク（３）内の軽油を供給管（４）を経て混合タンク（１）内に供給を開始する。上記下部フロートスイッチ（２５）は自己保持回路（２９）によりＯＮを保ち、それにより上記軽油の供給を継続する。 When the liquid level of the ethanol mixed fuel in the mixing tank (1) drops to (B), the lower float switch (25) is turned on, whereby the electric pump (22) is started and the fuel tank (3) Light oil is supplied into the mixing tank (1) through the supply pipe (4). The lower float switch (25) is kept ON by the self-holding circuit (29), thereby continuing the supply of the light oil.
軽油が５ｌ供給され、液面が（Ａ）に上昇したとき、上部フロートスイッチ（２４）がＯＮとなり、それによりまず、上記下部フロートスイッチ（２５）の自己保持回路（２９）を解除して該スイッチ（２５）をＯＦＦにし、上記電動ポンプ（２２）を停止させ（軽油の供給停止）、それと同時にタイマー（３４）がカウントを開始すると共に、電磁弁（２０）が開いてエタノールタンク（２）のエタノールを供給管（５）を経て混合タンク（１）に供給を開始する。上記上部フロートスイッチ（２４）は自己保持回路（２８）によりＯＮを保ち、上記エタノールの供給を継続する。 When 5 liters of light oil is supplied and the liquid level rises to (A), the upper float switch (24) is turned ON, thereby first releasing the self-holding circuit (29) of the lower float switch (25) and The switch (25) is turned off to stop the electric pump (22) (light oil supply is stopped). At the same time, the timer (34) starts counting and the solenoid valve (20) opens to open the ethanol tank (2). The ethanol is supplied to the mixing tank (1) through the supply pipe (5). The upper float switch (24) is kept ON by the self-holding circuit (28), and the supply of ethanol is continued.
エタノールが１５０ｃｃ供給されたとき上記タイマー（３４）がカウントを停止し、それにより電磁弁（２０）を閉じてエタノール供給を停止すると共に、上記上部フロートスイッチ（２４）の自己保持回路（２８）を解除して該スイッチ（２４）をＯＦＦにする。 When 150 cc of ethanol is supplied, the timer (34) stops counting, thereby closing the solenoid valve (20) to stop the ethanol supply, and the self-holding circuit (28) of the upper float switch (24). Release and turn off the switch (24).
混合タンク（１）内に供給された軽油及びエタノールは、リリーフ管（３６）の先端から液中に噴射される戻り燃料により撹拌混合される。 Mixing tank (1) supplied gas oil and ethanol in the is stirred mixed-by return fuel injected from the front end of the relief tube (36) in the liquid.
得られたエタノール３％混合燃料はフィードポンプ（６）の駆動により燃料吸入管（８）ついで燃料吐出管（１３）を経て噴射ポンプ（１１）に送られ、各噴射ノズル（１４）…を通じエンジン気筒に送られる。 The obtained 3% ethanol mixed fuel is fed to the injection pump (11) through the fuel suction pipe (8) and then the fuel discharge pipe (13) by driving the feed pump (6), and the engine is passed through each injection nozzle (14). Sent to the cylinder.
１ 混合タンク
２ エタノールタンク
３ 燃料タンク
４ 軽油供給管
５ エタノール供給管
６ フィードポンプ
８ エタノール混合燃料吸入管
１３ エタノール混合燃料吐出管
DESCRIPTION OF SYMBOLS 1 Mixing tank 2 Ethanol tank 3 Fuel tank 4 Light oil supply pipe 5 Ethanol supply pipe 6 Feed pump 8 Ethanol mixed fuel intake pipe 13 Ethanol mixed fuel discharge pipe
Claims (1)
上記混合タンク内に１本のステムを垂下し、該ステムに、上部ストッパーと下部ストッパー間で昇降自在の自己保持型上部フロートスイッチと、その下位において上部ストッパーと下部ストッパー間で昇降自在の自己保持型下部フロートスイッチとを摺動自在に支持させ、
上記上部フロートスイッチは、上昇して上部ストッパーに接したときＯＮになってＯＮを自己保持し、又上記下部フロートスイッチは、降下して下部ストッパーに接したときＯＮになってＯＮを自己保持する位置関係にあり、
上記上部フロートスイッチにタイマーを接続すると共に該タイマーに上記エタノール供給管の電磁弁を接続し、該上部フロートスイッチのＯＮにより上記タイマーの設定時間のカウント開始と同時に、上記電磁弁を開いて上記混合タンクへエタノール供給を開始し、設定時間経過により上記電磁弁を閉じるようにし、
上記下部フロートスイッチに上記石油系燃料供給管の電動ポンプを接続し、該下部フロートスイッチのＯＮにより上記電動ポンプを始動して上記混合タンクへ石油系燃料供給を開始し、上記上部フロートスイッチのＯＮ信号により上記下部フロートスイッチをＯＦＦにして上記電動ポンプを停止させるようにした、
駆動体に搭載式の石油系燃料・エタノール混合調整装置。 A drive tank is equipped with a mixing tank, an ethanol tank and a petroleum fuel tank above the mixing tank, respectively, an ethanol supply pipe from the ethanol tank through an electromagnetic valve to the mixing tank, and the petroleum system. Each oil-based fuel supply pipe is connected from the fuel tank via an electric pump,
A single stem is suspended in the mixing tank, and a self-holding type upper float switch that can be raised and lowered between the upper stopper and the lower stopper, and a self-holding that can be raised and lowered between the upper stopper and the lower stopper below it. The lower mold float switch is supported slidably,
The upper float switch is turned on and self-holds when the upper float switch comes into contact with the upper stopper, and the lower float switch is turned on and self-holds when the lower float switch descends and comes into contact with the lower stopper. In a positional relationship,
A timer is connected to the upper float switch, and an electromagnetic valve of the ethanol supply pipe is connected to the timer. When the upper float switch is turned ON, the solenoid valve is opened and the mixing valve is opened. Start supplying ethanol to the tank and close the solenoid valve when the set time has elapsed.
An electric pump of the petroleum fuel supply pipe is connected to the lower float switch. When the lower float switch is turned on, the electric pump is started to start supplying petroleum fuel to the mixing tank, and the upper float switch is turned on. The lower float switch is turned off by a signal to stop the electric pump.
Petroleum-based fuel / ethanol mixing adjustment system mounted on the drive unit .
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| JP2005134841A JP4664729B2 (en) | 2005-05-06 | 2005-05-06 | Petroleum fuel / ethanol mixing adjustment system mounted on the driver |
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