JP2006226212A - No-oil-change method, fuel filter or oil filter of diesel engine - Google Patents

No-oil-change method, fuel filter or oil filter of diesel engine Download PDF

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JP2006226212A
JP2006226212A JP2005042103A JP2005042103A JP2006226212A JP 2006226212 A JP2006226212 A JP 2006226212A JP 2005042103 A JP2005042103 A JP 2005042103A JP 2005042103 A JP2005042103 A JP 2005042103A JP 2006226212 A JP2006226212 A JP 2006226212A
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oil
fuel
filter
diesel engine
mixed
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JP2006226212A5 (en
JP4545610B2 (en
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Keisaku Iwakata
敬策 岩片
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Nippon Rokaki Co Ltd
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Nippon Rokaki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a no-oil-change method which combusts oil by mixing the oil with fuel and which prevents a detrimental effect exerted by a metal addition agent and by a depleted product contained in the oil. <P>SOLUTION: The depleted product and the metal addition agent contained in the oil are separated and eliminated from the fuel mixed with the oil or from the oil which is yet to be mixed with the fuel of a diesel engine 1. Then the oil, from which the depleted product and the metal addition agent have been separated and eliminated, is mixed with the fuel of a fuel tank 9 and combusted, and the oil which has become insufficient is refilled to the diesel engine 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、常用発電機用ディーゼルエンジン等におけるオイル無交換方法及び燃料フィルタ又はオイルフィルタに関するものである。   The present invention relates to an oil non-exchange method and a fuel filter or an oil filter in a diesel engine for a regular generator.

従来、ディーゼルエンジンにおいて、オイルを無交換とし、かつ、廃油ゼロを実現して環境負荷を低減する目的で、エンジンから劣化したオイルを強制的に抜き取り、抜き取ったオイルを燃料に混合して燃焼させることが行われている。そして、燃焼させた分のオイルは新たに補給され、これにより、オイルの無交換を実現し、廃油をなくしている。そのシステムの一例を図４に基づいて説明する。ディーゼルエンジンよりなるエンジン１のオイルパン２には、補給オイルタンク３が接続されている。この補給オイルタンク３と前記エンジン１との間には、後述する手段により消費されるオイルの消費分を自動的に供給するオイル供給手段（図示せず）が設けられている。そして、内部には、オイルポンプ４が設けられ、このオイルポンプ４にはオイルフィルタ５を介してメインギャラリーＭ／Ｇ６が接続されている。前記エンジン１には、燃料戻り経路７と燃料供給経路８とを介在させて燃料タンク９が接続されている。前記燃料供給経路８には、燃料フィルタ１１が設けられている。   Conventionally, in a diesel engine, in order to reduce the environmental load by reducing oil without changing the oil, the oil that has deteriorated is forcibly extracted from the engine, and the extracted oil is mixed with the fuel and burned. Things have been done. Then, the burned oil is newly replenished, thereby realizing no oil exchange and eliminating waste oil. An example of the system will be described with reference to FIG. A replenishment oil tank 3 is connected to an oil pan 2 of an engine 1 made of a diesel engine. Between the replenishment oil tank 3 and the engine 1, oil supply means (not shown) for automatically supplying the amount of oil consumed by the means described later is provided. An oil pump 4 is provided inside, and a main gallery M / G 6 is connected to the oil pump 4 via an oil filter 5. A fuel tank 9 is connected to the engine 1 through a fuel return path 7 and a fuel supply path 8. A fuel filter 11 is provided in the fuel supply path 8.

前述の従来の方法においては、劣化油を燃料に混合してそのまま燃焼させるので、オイルに含まれる金属系添加剤及び劣化生成物が排気ガスのＰＭを悪化させたり、エンジンの燃焼室や排気系部品にデポジットとして付着し、性能や耐久性に悪影響を及ぼしている。   In the above-described conventional method, the deteriorated oil is mixed with the fuel and burned as it is, so that the metallic additive and the deteriorated product contained in the oil deteriorate the PM of the exhaust gas, or the combustion chamber and the exhaust system of the engine. It adheres to the parts as deposits and adversely affects performance and durability.

請求項１記載の発明は、ディーゼルエンジンにおけるオイルを混合した燃料から前記オイルに含まれる劣化生成物及び金属系添加剤を分離除去し、劣化生成物及び金属系添加剤が分離除去されたオイルを混合した燃料を燃料タンクの燃料に混合して燃焼させるようにし、不足した前記オイルを前記ディーゼルエンジンに補給するようにした。   According to the first aspect of the present invention, the degradation product and the metal additive contained in the oil are separated and removed from the fuel mixed with the oil in the diesel engine, and the oil from which the degradation product and the metal additive have been separated and removed is removed. The mixed fuel was mixed with the fuel in the fuel tank and burned, and the insufficient oil was supplied to the diesel engine.

請求項２記載の発明は、ディーゼルエンジンにおける燃料に混合する前のオイルに含まれる劣化生成物及び金属系添加剤を分離除去し、劣化生成物及び金属系添加剤が分離除去されたオイルを燃料タンクの燃料に混合して燃焼させるようにし、不足した前記オイルを前記ディーゼルエンジンに補給するようにした。   The invention according to claim 2 separates and removes the degradation product and the metal-based additive contained in the oil before mixing with the fuel in the diesel engine, and removes the oil from which the degradation product and the metal-based additive are separated and removed. It was made to mix with the fuel of a tank and to make it burn, and the said shortage of oil was replenished to the said diesel engine.

請求項３記載の発明は、オイルを混合した燃料又は燃料に混合する前のオイルが流入する入口と流出する出口とを備えたケース内に、オイルの劣化生成物等を除去するメタルフィルタを配設し、このメタルフィルタの内部にオイルの金属系添加剤を吸着除去する濾過助剤が納められた濾過助剤フィルタを設けて燃料フィルタ又はオイルフィルタを構成した。   The invention according to claim 3 is provided with a metal filter that removes oil degradation products and the like in a case having an inlet into which the fuel mixed with oil or an oil before mixing into the fuel flows in and an outlet through which the oil flows out. A fuel filter or an oil filter was configured by providing a filter aid filter in which a filter aid for adsorbing and removing oil metal additives was placed inside the metal filter.

本発明は、劣化したオイルから劣化生成物及び金属系添加剤を分離除去した後に、燃料タンクの燃料に混合して燃焼させるので、劣化生成物及び金属系添加剤による排気ガスのＰＭの悪化や、エンジンの燃焼室や排気系部品にデポジットとして付着することを防止することができ、これにより、エンジンの性能や耐久性に悪影響を及ぼさない状態でオイルを無交換とし、かつ、廃油ゼロを実現して環境負荷を低減することができる。   Since the present invention separates and removes the deteriorated product and the metal-based additive from the deteriorated oil, and mixes it with the fuel in the fuel tank and burns it, the deterioration of the exhaust gas PM due to the deteriorated product and the metal-based additive This prevents deposits from depositing on engine combustion chambers and exhaust system parts, which makes it possible to replace oil without affecting the performance and durability of the engine and to achieve zero waste oil. Thus, the environmental load can be reduced.

本発明の実施の形態を図１〜図３に基づいて説明する。まず、図１に基づいて本発明のシステムの全体を説明する。ディーゼルエンジンよりなるエンジン１のオイルパン２には、補給オイルタンク３が接続されている。この補給オイルタンク３と前記エンジン１との間には、後述する手段により消費されるオイルの消費分を自動的に供給するオイル供給手段（図示せず）が設けられている。そして、内部には、オイルポンプ４が設けられ、このオイルポンプ４にはオイルフィルタ５を介してメインギャラリーＭ／Ｇ６が接続されている。前記エンジン１には、燃料戻り経路７と燃料供給経路８とを介在させて燃料タンク９が接続されている。前記燃料戻り経路７及び前記燃料供給経路８には、燃料フィルタ１０、１１が設けられている。ついで、前記オイルポンプ４と前記オイルフィルタ５との間からは、オイル抜取経路１２が分岐されており、このオイル抜取経路１２にはバイパスフィルタとしてのオイルフィルタ１３が設けられており、前記燃料戻り経路７の前記燃料フィルタ１０の前記エンジン１側に接続されている。前記オイルフィルタ１３の上流側には、エンジン１のオイル潤滑系からオイルを継続的に抜き取るオイル抜取手段（図示せず）が設けられており、前記オイルフィルタ１３の下流側には、抜き取ったオイルを燃料に混合させる燃料混合手段（図示せず）が設けられている。   An embodiment of the present invention will be described with reference to FIGS. First, the entire system of the present invention will be described with reference to FIG. A replenishment oil tank 3 is connected to an oil pan 2 of an engine 1 made of a diesel engine. Between the replenishment oil tank 3 and the engine 1, oil supply means (not shown) for automatically supplying the amount of oil consumed by the means described later is provided. An oil pump 4 is provided inside, and a main gallery M / G 6 is connected to the oil pump 4 via an oil filter 5. A fuel tank 9 is connected to the engine 1 through a fuel return path 7 and a fuel supply path 8. Fuel filters 10 and 11 are provided in the fuel return path 7 and the fuel supply path 8. Next, an oil extraction path 12 is branched from between the oil pump 4 and the oil filter 5, and an oil filter 13 as a bypass filter is provided in the oil extraction path 12, and the fuel return The fuel filter 10 in the path 7 is connected to the engine 1 side. An oil extraction means (not shown) for continuously extracting oil from the oil lubrication system of the engine 1 is provided on the upstream side of the oil filter 13, and the extracted oil is provided on the downstream side of the oil filter 13. A fuel mixing means (not shown) for mixing the fuel with the fuel is provided.

次に、図２に基づいて、前記燃料フィルタ１０、１１及び前記オイルフィルタ１３の構造を説明する。これらの燃料フィルタ１０、１１及びオイルフィルタ１３の構造は、それらの構造としては同一形状のものである。まず、側面に入口１４が形成され、下端に出口１５が形成されたケース１６が設けられ、このケース１６は、その上端がカバー１７により密閉されている。ついで、前記ケース１６内には、パッキング１８を介してフィルタエレメント１９が取り付けられている。このフィルタエレメント１９は、多数の穴２０が形成された円筒部材２１の周囲にオイルの劣化生成物及び磨耗粉並びに外部ダスト等を除去するためのメタルフィルタ２２が設けられている。また、前記円筒部材２１の内部には、濾過助剤フィルタ２３が設けられている。この濾過助剤フィルタ２３は、円筒体２４の両端に網２５と粗フィルタ２６とが取り付けられてその内部には、粉末状の濾過助剤２７が充填されている。この濾過助剤２７は、活性炭やドーソナイト（商品名）等よりなるものである。   Next, the structure of the fuel filters 10 and 11 and the oil filter 13 will be described with reference to FIG. The structures of the fuel filters 10 and 11 and the oil filter 13 are the same in shape. First, a case 16 having an inlet 14 formed on a side surface and an outlet 15 formed on a lower end is provided. The upper end of the case 16 is sealed by a cover 17. Next, a filter element 19 is attached in the case 16 via a packing 18. The filter element 19 is provided with a metal filter 22 around the cylindrical member 21 in which a large number of holes 20 are formed to remove oil degradation products, wear powder, external dust, and the like. A filter aid filter 23 is provided inside the cylindrical member 21. In the filter aid filter 23, a net 25 and a coarse filter 26 are attached to both ends of a cylindrical body 24, and a powdery filter aid 27 is filled therein. The filter aid 27 is made of activated carbon, dosonite (trade name) or the like.

このような構成において、エンジン１が稼動中は、燃料フィルタ１１が設けられている燃料供給経路８を通って燃料タンク９から燃料が供給され、エンジン１内では、オイルポンプ４が稼働されてオイルフィルタ５を通してメインギャラリーＭ／Ｇ６にオイルを供給する。同時に、オイルを混合した燃料は、燃料フィルタ１０が設けられている燃料戻り経路７を経て燃料タンク９に戻されるとともに、一部のオイルポンプ４で送り出される燃料に混合する前のオイルは、オイルフィルタ１３が設けられているオイル抜取経路１２を経て燃料戻り経路７に送り出され、燃料フィルタ１０を経て燃料タンク９に送り出される。このようにして燃料タンク９に送り出されたオイルの量に相当する新たなオイルは、補給オイルタンク３からエンジン１のオイルパン２に供給され、エンジン１内のオイルの量は一定に保たれている。   In such a configuration, when the engine 1 is in operation, fuel is supplied from the fuel tank 9 through the fuel supply path 8 provided with the fuel filter 11, and in the engine 1, the oil pump 4 is operated and oil is supplied. Oil is supplied to the main gallery M / G 6 through the filter 5. At the same time, the fuel mixed with the oil is returned to the fuel tank 9 through the fuel return path 7 in which the fuel filter 10 is provided, and the oil before being mixed with the fuel sent out by a part of the oil pump 4 is oil. It is sent to the fuel return path 7 via the oil extraction path 12 provided with the filter 13, and sent to the fuel tank 9 via the fuel filter 10. Thus, new oil corresponding to the amount of oil sent to the fuel tank 9 is supplied from the replenishing oil tank 3 to the oil pan 2 of the engine 1, and the amount of oil in the engine 1 is kept constant. Yes.

しかして、燃料フィルタ１０、１１及びオイルフィルタ１３は、基本的には同一構造であり、その作用も同様であるので、それらの作用については、一括して説明する。まず、入口１４からは、オイルを混合した燃料、又は、燃料に混合する前のオイルが供給され、メタルフィルタ２２の外周から内周に向けて流れ、円筒部材２１の穴２０を通ってその円筒部材２１の内部に流入する。この過程で、オイルを混合した燃料、又は、燃料に混合する前のオイルのオイル劣化生成物および磨耗物や外部ダスト等が除去される。ついで、円筒部材２１の内部に流入したオイルを混合した燃料、又は、オイルは、網２５、粗フィルタ２６を介して濾過助剤フィルタ２３の濾過助剤２７を通過し、出口１５から流出する。このとき、濾過助剤２７により、オイル中に含まれる金属系添加物が吸着除去される。しかも、濾過助剤２７は筒状の円筒体２４に収納されており、オイルを混合した燃料、又は、燃料に混合する前のオイルは円筒体２４の長手方向に流れるので、濾過助剤２７との接触時間が長くなり、金属系添加物の吸着除去が効率的に行われる。したがって、出口から流出するオイルを混合した燃料、又は、オイルには、劣化生成物、磨耗粉や外部ダスト及び金属系添加物が含まれていない。そのため、エンジン１において、燃料とともに燃焼されるときに、排気ガスのＰＭを悪化させたり、エンジン１の燃焼室や排気系部品にデポジットとして付着し、性能や耐久性に悪影響を及ぼすことがない。   Since the fuel filters 10 and 11 and the oil filter 13 have basically the same structure and the same operation, they will be described collectively. First, the fuel mixed with oil or the oil before mixing with the fuel is supplied from the inlet 14, flows from the outer periphery of the metal filter 22 toward the inner periphery, passes through the hole 20 of the cylindrical member 21, and the cylinder. It flows into the member 21. In this process, the fuel in which the oil is mixed, or the oil degradation product, the wear, external dust, etc. of the oil before mixing with the fuel are removed. Next, the fuel mixed with the oil flowing into the cylindrical member 21 or the oil passes through the filter aid 27 of the filter aid filter 23 through the mesh 25 and the coarse filter 26 and flows out from the outlet 15. At this time, the metal additive contained in the oil is adsorbed and removed by the filter aid 27. Moreover, the filter aid 27 is accommodated in the cylindrical cylinder 24, and the fuel mixed with the oil or the oil before mixing with the fuel flows in the longitudinal direction of the cylinder 24. The contact time becomes longer, and the adsorption and removal of the metal-based additive is performed efficiently. Therefore, the fuel mixed with the oil flowing out from the outlet or the oil does not contain deterioration products, wear powder, external dust, and metallic additives. Therefore, when the engine 1 is combusted together with fuel, PM of exhaust gas is not deteriorated, and it adheres to the combustion chamber and exhaust system parts of the engine 1 as deposits, so that the performance and durability are not adversely affected.

なお、図３に示すものは、一般的な通常消費した分のオイルを供給するオイル劣化の状態と燃料フィルタ１０、１１及びオイルフィルタ１３を用いた本実施の態様のオイル劣化の状態とを比較したものである。すなわち、従来の方法によれば、稼働時間５００時間毎に劣化限界に達し、オイルパン２のオイル及びオイルフィルタ５を新たなものに交換し、同様な動作を繰り返す。この状態は、細い実線で示す鋸歯状の変化を示す。これに対して、本実施の形態においては、稼働とともにオイル劣化は進行するが、オイル消費とともに新たなオイルが供給されている状態であるので、点線で示すようにオイル劣化は劣化限界よりはるかに低い状態で安定する。このようにして長時間にわたって燃料フィルタ１０、１１及びオイルフィルタ１３の連続使用が可能になるとともに、オイルパン２のオイル交換も不要になる。   3 shows a comparison between the state of oil deterioration that supplies the oil that is normally consumed and the state of oil deterioration of the present embodiment that uses the fuel filters 10, 11 and the oil filter 13. It is a thing. That is, according to the conventional method, the deterioration limit is reached every 500 hours of operation, the oil in the oil pan 2 and the oil filter 5 are replaced with new ones, and the same operation is repeated. This state shows a sawtooth change indicated by a thin solid line. On the other hand, in the present embodiment, the oil deterioration progresses with operation, but since new oil is supplied as the oil is consumed, the oil deterioration is far from the deterioration limit as shown by the dotted line. Stable at low conditions. In this way, the fuel filters 10 and 11 and the oil filter 13 can be used continuously for a long time, and the oil change of the oil pan 2 is not necessary.

ついで、前述のような燃料フィルタ１０、１１及びオイルフィルタ１３は、再生可能なものである。すなわち、定期的に交換するが、交換時期において、燃料フィルタ１０、１１及びオイルフィルタ１３を取り外し、メタルフィルタ２２を分離させて洗浄により再生する。ついで、濾過助剤フィルタ２３を取り外して内部の濾過助剤２７を詰め替える。そして、組立て直して所定位置に取り付けて再使用する。
Next, the fuel filters 10 and 11 and the oil filter 13 as described above are reproducible. In other words, the fuel filters 10 and 11 and the oil filter 13 are removed and the metal filter 22 is separated and regenerated by cleaning at the replacement time. Next, the filter aid filter 23 is removed and the filter aid 27 inside is refilled. Then, it is reassembled, attached at a predetermined position, and reused.

本発明の実施の形態を示すシステム図である。It is a system diagram showing an embodiment of the present invention. 燃料フィルタ又はオイルフィルタの縦断側面図である。It is a vertical side view of a fuel filter or an oil filter. オイル劣化の状態を示すグラフである。It is a graph which shows the state of oil deterioration. 従来の一般的な例を示すシステム図である。It is a system diagram which shows the conventional general example.

符号の説明Explanation of symbols

１ エンジン
９ 燃料タンク
１４ 入口
１５ 出口
１６ ケース
２２ メタルフィルタ
２３ 濾過助剤フィルタ
２７ 濾過助剤

1 Engine 9 Fuel Tank 14 Inlet 15 Outlet 16 Case 22 Metal Filter 23 Filter Aid Filter 27 Filter Aid

Claims (3)

ディーゼルエンジンにおけるオイルを混合した燃料から前記オイルに含まれる金属系添加剤及び劣化生成物を分離除去し、劣化生成物及び金属系添加剤が分離除去されたオイルを混合した燃料を燃料タンクの燃料に混合して燃焼させるようにし、不足した前記オイルを前記ディーゼルエンジンに補給するようにしたことを特徴とするディーゼルエンジンにおけるオイル無交換方法。   Separating and removing metallic additives and deteriorated products contained in the oil from the fuel mixed with oil in a diesel engine, and mixing the oil from which the deteriorated products and metallic additives are separated and removed with the fuel in the fuel tank An oil non-exchange method in a diesel engine, wherein the diesel engine is replenished with the insufficient oil to be mixed and burned. ディーゼルエンジンにおける燃料に混合する前のオイルに含まれる金属系添加剤及び劣化生成物を分離除去し、劣化生成物及び金属系添加剤が分離除去されたオイルを燃料タンクの燃料に混合して燃焼させるようにし、不足した前記オイルを前記ディーゼルエンジンに補給するようにしたことを特徴とするディーゼルエンジンにおけるオイル無交換方法。   Separating and removing metallic additives and deterioration products contained in oil before mixing with fuel in diesel engines, and mixing and removing oil from which deterioration products and metallic additives have been separated and mixed with fuel in the fuel tank An oil non-exchange method for a diesel engine, characterized in that the diesel engine is replenished with the insufficient oil. オイルを混合した燃料又は燃料に混合する前のオイルが流入する入口と流出する出口とを備えたケース内に、オイルの劣化生成物等を除去するメタルフィルタを配設し、このメタルフィルタの内部にオイルの金属系添加剤を吸着除去する濾過助剤が納められた濾過助剤フィルタを設けたことを特徴とする燃料フィルタ又はオイルフィルタ。

A metal filter that removes oil degradation products and the like is disposed in a case having an inlet into which the oil mixed with the oil or an oil before mixing into the fuel flows and an outlet from which the oil flows out. A fuel filter or an oil filter, characterized in that a filter aid filter containing a filter aid for adsorbing and removing oil metal-based additives is provided.

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008163810A (en) * 2006-12-27 2008-07-17 Denso Corp Fuel filter
JP2008202489A (en) * 2007-02-20 2008-09-04 Nippon Rokaki Kk Air cleaner
JP2010138782A (en) * 2008-12-11 2010-06-24 Denso Corp Fuel supply device
CN107923277A (en) * 2015-08-25 2018-04-17 卡特彼勒公司 Fluid regulating system and its operating method with recirculation loop

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JPS5017551U (en) * 1973-06-16 1975-02-25
JPS50145744A (en) * 1974-05-15 1975-11-22
JPS51142166A (en) * 1975-06-02 1976-12-07 Nippon Shiyuumatsuhaa Kk Filter
JPS566018A (en) * 1979-06-25 1981-01-22 Mazda Motor Corp Apparatus for protecting catalyst used for purifying exhaust gas of rotary piston engine
JPS6346619U (en) * 1986-09-11 1988-03-29
JPH0359012U (en) * 1989-10-12 1991-06-10
JPH11257038A (en) * 1998-03-17 1999-09-21 Sumimoto Kagaku Kenkyusho:Kk Method for preventing generation of waste oil from diesel engine

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JPS5017551U (en) * 1973-06-16 1975-02-25
JPS50145744A (en) * 1974-05-15 1975-11-22
JPS51142166A (en) * 1975-06-02 1976-12-07 Nippon Shiyuumatsuhaa Kk Filter
JPS566018A (en) * 1979-06-25 1981-01-22 Mazda Motor Corp Apparatus for protecting catalyst used for purifying exhaust gas of rotary piston engine
JPS6346619U (en) * 1986-09-11 1988-03-29
JPH0359012U (en) * 1989-10-12 1991-06-10
JPH11257038A (en) * 1998-03-17 1999-09-21 Sumimoto Kagaku Kenkyusho:Kk Method for preventing generation of waste oil from diesel engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008163810A (en) * 2006-12-27 2008-07-17 Denso Corp Fuel filter
JP2008202489A (en) * 2007-02-20 2008-09-04 Nippon Rokaki Kk Air cleaner
JP2010138782A (en) * 2008-12-11 2010-06-24 Denso Corp Fuel supply device
CN107923277A (en) * 2015-08-25 2018-04-17 卡特彼勒公司 Fluid regulating system and its operating method with recirculation loop

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