JPS6355318A - Deterioration detecting device of engine oil - Google Patents
Deterioration detecting device of engine oilInfo
- Publication number
- JPS6355318A JPS6355318A JP19777086A JP19777086A JPS6355318A JP S6355318 A JPS6355318 A JP S6355318A JP 19777086 A JP19777086 A JP 19777086A JP 19777086 A JP19777086 A JP 19777086A JP S6355318 A JPS6355318 A JP S6355318A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- engine oil
- deterioration
- light
- flow cell
- 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.)
- Pending
Links
- 239000010705 motor oil Substances 0.000 title claims abstract description 42
- 230000006866 deterioration Effects 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 6
- 239000004071 soot Substances 0.000 claims abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 14
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 101150006573 PAN1 gene Proteins 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000003595 spectral effect Effects 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば、燃料として液化石油ガス（ＬＰＧ
）を用いる自動車のエンジンオイルの劣化を検出するよ
うなエンジンオーイルの劣化検知装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention is applicable to, for example, liquefied petroleum gas
The present invention relates to an engine oil deterioration detection device for detecting deterioration of automobile engine oil using an engine oil deterioration.
（従来技術）
従来、上述例のエンジンオイルの劣化検知装置としては
、例えば特開昭５８−１４４７３４号公報および特開昭
５８−１２８４１１号公報に記載のように、エンジンオ
イルの劣化を粘性、誘電率、静電容量、交流インピーダ
ンス等の物性劣化によって検出するように構成した装置
がある。(Prior Art) Conventionally, the above-mentioned engine oil deterioration detection device has been used to detect deterioration of engine oil by measuring viscosity, dielectricity, There are devices configured to detect deterioration of physical properties such as rate, capacitance, and AC impedance.
このような物性変化によるエンジンオイルの劣化検知で
は、検知遅れが生ずるため、ｆ、！滑トラブルが発生す
る問題点があった。When detecting engine oil deterioration due to such changes in physical properties, there is a detection delay, so f,! There was a problem with slipping problems.
以下、この点について更に詳述する。This point will be explained in more detail below.
第３図は横軸に走行距！！ｌ（時間）を、また縦軸に酸
化窒化物の生成およびスラッジの生成（粘度上昇）をと
り、品質の差異による化学組成変化を特性ａ１．ａ２．
ａ３で、また同様に品質の差異による性状変化（物性変
化）を特性ｂ１．ｂ２゜ｂ３でそれぞれ示している。Figure 3 shows the distance traveled on the horizontal axis! ! l (time) and the production of oxynitrides and sludge (increase in viscosity) are plotted on the vertical axis, and chemical composition changes due to quality differences are plotted as characteristics a1. a2.
a3, and similarly property changes (physical property changes) due to quality differences are determined by characteristic b1. They are shown as b2 and b3, respectively.
上述の化学組成変化（特性ａ１．ａ２．ａ３）は直線的
に変化するが、性状変化〈特性ｂ１．ｂ２、ｂ３）は走
行距離が特定の値Ｊｘに達した時点から指数関数的に変
化する。The above chemical composition changes (characteristics a1.a2.a3) change linearly, but property changes <characteristics b1. b2, b3) change exponentially from the time the traveling distance reaches a specific value Jx.
ここで、化学組成変化の比較的遅いエンジンオイル（特
性ａ３．ｂ３参照）は同様に性状変化速度も遅く、多少
の検知遅れが生じても潤滑トラブルは発生しないが、化
学組成変化の比較的速いエンジンオイル（特性ａ１．ａ
２参照）では性状変化速度も速く、従来の検知装置では
、この性状変化（特性ｂｌ、ｂ２参照）の急変に追従す
ることができず、検知遅れに起因して潤滑トラブルが発
生する問題点を有していた。Here, engine oil whose chemical composition changes relatively slowly (see characteristics a3 and b3) similarly has a slow property change speed, and no lubrication trouble will occur even if there is a slight detection delay, but the chemical composition changes relatively quickly. Engine oil (characteristics a1.a
2), the rate of change in properties is fast, and conventional detection devices are unable to follow sudden changes in properties (see characteristics bl, b2), which can cause lubrication problems due to detection delays. had.
（発明の目的）
この発明は、化学組成変化と正比例して変化するオイル
の黒色化、換言すればオイル透過光ａの低下を検知する
特異な手段により、オイル劣化の検知遅れをなくすこと
ができ、潤滑トラブルの発生を防止することができるエ
ンジンオイルの劣化検知装置の提供を目的とする。(Object of the Invention) This invention can eliminate the delay in detecting oil deterioration by using a unique means for detecting the blackening of oil, which changes in direct proportion to the change in chemical composition, in other words, the decrease in oil transmitted light a. The purpose of the present invention is to provide an engine oil deterioration detection device that can prevent the occurrence of lubrication troubles.
（発明の構成）
この発明は、少１なくとも中途部に透明壁部を有して、
エンジンオイルを流通させるオイル供給通路と、上記オ
イル供給通路の上流側に設けられ、エンジンオイル中の
煤、塵芥を除去するオイルフィルタと、上記透明壁部を
隔てて対向する発光器と受光器とを有して、受光器の受
光艮減少によりエンジンオイルの劣化を検出する劣化検
出器とを賜えたエンジンオイルの劣化検知装置であるこ
とを特徴とする。(Structure of the Invention) This invention has a transparent wall portion at least in the middle,
an oil supply passage through which engine oil flows; an oil filter provided on the upstream side of the oil supply passage to remove soot and dust from the engine oil; and a light emitter and a light receiver facing each other across the transparent wall. An engine oil deterioration detection device is characterized in that it is equipped with a deterioration detector that detects deterioration of engine oil by a decrease in light reception of a light receiver.
（発明の効果）
この発明によれば、上述の透明壁部に相対向する発光器
、受光器によりエンジンオイルの黒色化の度合を検出す
ることで、同オイルの劣化を検知するので、化学組成変
化に基づいたエンジンオイルの劣化検知ができ、この結
果、オイル劣化の検知遅れをなくすことができて、潤滑
トラブルの発生を防止することができる効果がある。(Effects of the Invention) According to the present invention, deterioration of the engine oil is detected by detecting the degree of blackening of the engine oil using a light emitting device and a light receiver that face each other to the above-mentioned transparent wall. Engine oil deterioration can be detected based on changes, and as a result, delays in detecting oil deterioration can be eliminated, and lubrication problems can be prevented from occurring.
加えて、上述の劣化検知に供するエンジンオイルは、オ
イルフィルタによって煤、塵芥などの不純物が除去され
たオイルであるから、劣化検知を正確に行なうことがで
きる効果がある。In addition, since the engine oil used for the deterioration detection described above is oil from which impurities such as soot and dust have been removed by an oil filter, deterioration detection can be carried out accurately.
（実施例） この発明の一実施例を以下図面に基づいて詳述する。(Example) An embodiment of the present invention will be described in detail below based on the drawings.
図面はエンジンオイルの素化検知装置を示し、第１図に
おいて、オイルパン１中に８！漬したオイルストレーナ
２にはオイル吸引管３を連結し、このオイル吸引管３上
壇にオイルポンプ４を接続している。The drawing shows an engine oil atomization detection device, and in FIG. 1, 8! An oil suction pipe 3 is connected to the soaked oil strainer 2, and an oil pump 4 is connected to the upper stage of the oil suction pipe 3.
゛ 上述のオイルポンプ４の吐出側には、オイルフ
ィルタ５を介設した油路６を介して、ギヤラリ７を連通
し、このギヤラリ７の下流側を７オイルパン１に連通さ
せている。゛ A gear rally 7 is communicated with the discharge side of the oil pump 4 through an oil passage 6 in which an oil filter 5 is interposed, and the downstream side of the gear rally 7 is communicated with the 7 oil pan 1.
上述のオイルフィルタ５下流側と、ギヤラリ７上流側と
の間における油路６の一部分をバイパスするバイパス路
８を設け、このバイパス路８の中途部に硬質透明ガラス
製のフローセル９を介設して、このフローセル９内にオ
イルフィルタ５通過後のエンジンオイル１０を供給すべ
く構成している。A bypass passage 8 is provided to bypass a portion of the oil passage 6 between the downstream side of the oil filter 5 and the upstream side of the gear assembly 7, and a flow cell 9 made of hard transparent glass is interposed in the middle of the bypass passage 8. The engine oil 10 after passing through the oil filter 5 is supplied into the flow cell 9.
ここで、上述のオイルフィルタ５はエンジンオイル中の
煤、塵芥などの不純物を除去し、この実施例では濾紙面
積０．１１麓、最大通過粒径４０μ以下のフルフロー型
ｌｉ１紙式のフィルタを用いている。Here, the above-mentioned oil filter 5 removes impurities such as soot and dust in the engine oil, and in this embodiment, a full-flow type LI1 paper filter with a filter paper area of 0.11 mm and a maximum passing particle diameter of 40 μ or less is used. ing.
ところで、前述のフローセル９を隔てて対向する部位に
は発光器１１と受光器１２とを配設して、受光器１２の
受光旦減少によってエンジンオイル１０の劣化を検出す
る劣化検出器１３を構成すると共に、上述の発光器１１
には発光素子駆動回路１４いわゆるドライバ回路を、ま
た上述の受光器１２には受光素子処理回路１５をそれぞ
れ電気的に接続している。Incidentally, a light emitter 11 and a light receiver 12 are disposed at opposing positions across the aforementioned flow cell 9, and constitute a deterioration detector 13 that detects deterioration of the engine oil 10 by a decrease in the number of light received by the light receiver 12. At the same time, the above-mentioned light emitter 11
A light emitting element driving circuit 14, so-called a driver circuit, is electrically connected to the light emitting element driving circuit 14, and a light receiving element processing circuit 15 is electrically connected to the above-mentioned light receiver 12.
ここで、上述の発光器１１としては、波長５６ｏＩＩＩ
ＩＩＩ付近に分光放射特性をもつＧａ−Ｐランプ（半導
体ｐｎ接合のキャリア励起ランプいわゆるＬＥＤ）を用
い、また上述の受光器１２としては光電管を用いる。Here, the above-mentioned light emitter 11 has a wavelength of 56oIII.
A Ga-P lamp (semiconductor pn junction carrier excitation lamp, so-called LED) having a spectral radiation characteristic near III is used, and a phototube is used as the above-mentioned light receiver 12.
図示実施例は上記の如く構成するものにして、以下作用
を説明する。The illustrated embodiment is constructed as described above, and its operation will be explained below.
いま、エンジン（図示せず）を駆動すると、このエンジ
ンに連動してオイルポンプ４が回転するので、オイルパ
ン１から吸引されたエンジンオイルはオイルフィルタ５
、油路６、ギヤラリ７を介して、それぞれの被潤滑部分
に、ｌｌ’、ｌｌ滑油として供給され、潤滑侵のエンジ
ンオイルは再びオイルパン１内に落下する。Now, when the engine (not shown) is driven, the oil pump 4 rotates in conjunction with the engine, so the engine oil sucked from the oil pan 1 is passed through the oil filter 5.
, the oil passage 6, and the gear 7, lubricating oil is supplied to each lubricated part as ll' and ll lubricating oil, and the lubricating engine oil falls into the oil pan 1 again.
また上述のオイルポンプ４の駆動によりバイパス路８を
介してフローセル９内にもエンジンオイル１０が供給さ
れる。Furthermore, engine oil 10 is also supplied into the flow cell 9 via the bypass passage 8 by driving the oil pump 4 described above.
一方、上述のエンジンオイルは走行距離に応じて第３図
に特性ａ１．ａ２．ａ３で示すように化学組成変化（酸
化、窒化物の生成）は第２図に特性図で示す如くオイル
の黒色化と正比例の関係にある。On the other hand, the above-mentioned engine oil has characteristics a1. a2. As shown by a3, chemical composition changes (oxidation, nitride formation) are in direct proportion to oil blackening, as shown in the characteristic diagram in FIG.
そこで、第１図の発光素子駆動回路１４を駆動して、発
光器１１を発光させ、この発光器１１からの可視光線ｒ
をフローセル９およびフローセル９中のエンジンオイル
１０を透過し、透過後の可視光線ｒを上述の受光器１２
で受光し、この受光器１２の受光器の減少度合を次段の
受光素子処理回路１５で、予め測定した新油の受光ｍと
比較すると、エンジンオイルの劣化を検知することがで
き、さらに上述の処理回路１５で劣化予告、交換警告を
行なうことも可能である。Therefore, the light emitting element driving circuit 14 shown in FIG. 1 is driven to cause the light emitter 11 to emit light, and the visible light r
The visible light r transmitted through the flow cell 9 and the engine oil 10 in the flow cell 9 is transmitted to the above-mentioned light receiver 12.
The deterioration of the engine oil can be detected by comparing the degree of decrease of the light receiver 12 with the light received m of new oil measured in advance in the light receiving element processing circuit 15 of the next stage. It is also possible to issue a deterioration notice and a replacement warning using the processing circuit 15.
このようにフローセル９に相対向する発光器１１、受光
器１２によりエンジンオイル１０の黒色化の度合を、透
過光量の変化にて検出することにより、エンジンオイル
１０の劣化を検知Ｊるので、物性変化とは異なる化学組
成の変化（１！２化、窒化物の生成）に基づいたエンジ
ンオイル１０の劣化検知ができる。In this way, deterioration of the engine oil 10 can be detected by detecting the degree of blackening of the engine oil 10 by the change in the amount of transmitted light using the light emitter 11 and the light receiver 12 facing the flow cell 9. Deterioration of the engine oil 10 can be detected based on a change in chemical composition (1!2 conversion, formation of nitrides) that is different from the change.
この結果、エンジンオイル劣化の検知遅れをなくすこと
ができて、潤滑トラブルの発生を防止することができる
効果がある。As a result, it is possible to eliminate the delay in detecting engine oil deterioration, and it is possible to prevent the occurrence of lubrication troubles.
加えて、上述の劣化検知に供されるエンジンオイル１０
は、オイルフィルタ５によって煤、塵芥などの不純物が
除去されたオイルであるから、上述の劣化検知を正確に
行なうことができる効果があり、さらには車両への装備
も簡単である。In addition, the engine oil 10 used for the above deterioration detection
Since the oil is oil from which impurities such as soot and dust have been removed by the oil filter 5, it has the advantage of being able to accurately detect the deterioration described above, and is also easy to install in a vehicle.
この発明の構成と、上述の実施例との対応において、
この発明の透明壁部は、実施例のフローセル９に対応し
、
以下同様に、
オイル供給通路はバイパス路８に対応するも、この発明
は、上述の実施例の構成のみに限定されるものではない
。Regarding the correspondence between the structure of the present invention and the above-described embodiments, the transparent wall portion of the present invention corresponds to the flow cell 9 of the embodiment, and the oil supply passage corresponds to the bypass passage 8 in the same manner. is not limited to the configuration of the above-described embodiment.
例えば発光器１１としては上述のＬＥＤの他に発光ラン
プを用いてもよく、受光器１２としてはフォト・ダイオ
ード、フォト・トランジスタ、フォト・セル（ｐｈｏｔ
ｏ ｃｅｌｌ）を用いてもよいことは云うまでもない
。For example, as the light emitter 11, a light emitting lamp may be used in addition to the above-mentioned LED, and as the light receiver 12, a photo diode, a photo transistor, a photo cell (photo
It goes without saying that you may also use ``o cell''.
図面はこの発明の一実施例を示し、
第１図はエンジンオイルの劣化検知装置を示す系統図、
第２図は酸化、窒化物の生成に対するエンジンオイルの
黒色化の変化状態を示す特性図、第３図はエンジンオイ
ルの化学組成変化および性状変化を示す特性図である。
５・・・オイルフィルタ ８・・・バイパス路９・・
・フローセル １０・・・エンジンオイル１１・
・・発光器 １２・・・受光器１３・・・劣化
検出器
９・・・フローセル
η−・エンジンオイル
１１・・・発光器
１３−＆ｔ）＃土器
第１図
第２図
ｍ／ｅ−窒／ｌａａ生へ
第３図The drawings show an embodiment of the present invention; FIG. 1 is a system diagram showing an engine oil deterioration detection device; FIG. 2 is a characteristic diagram showing changes in the blackening of engine oil due to oxidation and nitride formation; FIG. 3 is a characteristic diagram showing changes in chemical composition and properties of engine oil. 5...Oil filter 8...Bypass path 9...
・Flow cell 10...Engine oil 11・
...Emitter 12...Receiver 13...Deterioration detector 9...Flow cell η-・Engine oil 11...Emitter 13-&t) #Earthware Fig. 1 Fig. 2 m/e-Nitrogen /laa student figure 3
Claims (1)
イルを流通させるオイル供給通路 と、 上記オイル供給通路の上流側に設けられ、 エンジンオイル中の煤、塵芥を除去するオ イルフィルタと、 上記透明壁部を隔てて対向する発光器と受 光器とを有して、受光器の受光量減少によ りエンジンオイルの劣化を検出する劣化検 出器とを備えた エンジンオイルの劣化検知装置。[Scope of Claims] 1. An oil supply passage having a transparent wall portion at least in the middle to allow engine oil to flow; and an oil supply passage provided upstream of the oil supply passage to remove soot and dust from the engine oil. and a deterioration detector, which has a light emitter and a light receiver facing each other across the transparent wall, and detects the deterioration of the engine oil by a decrease in the amount of light received by the light receiver. Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19777086A JPS6355318A (en) | 1986-08-22 | 1986-08-22 | Deterioration detecting device of engine oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19777086A JPS6355318A (en) | 1986-08-22 | 1986-08-22 | Deterioration detecting device of engine oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6355318A true JPS6355318A (en) | 1988-03-09 |
Family
ID=16380058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19777086A Pending JPS6355318A (en) | 1986-08-22 | 1986-08-22 | Deterioration detecting device of engine oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6355318A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990021606A (en) * | 1997-08-30 | 1999-03-25 | 정몽규 | Engine oil change timing display device |
| US8347828B2 (en) | 2007-09-26 | 2013-01-08 | Toyota Jidosha Kabushiki Kaisha | Device and method for detecting degradation of fuel for internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110912B2 (en) * | 1978-12-29 | 1986-03-31 | Suwa Seikosha Kk |
-
1986
- 1986-08-22 JP JP19777086A patent/JPS6355318A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110912B2 (en) * | 1978-12-29 | 1986-03-31 | Suwa Seikosha Kk |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990021606A (en) * | 1997-08-30 | 1999-03-25 | 정몽규 | Engine oil change timing display device |
| US8347828B2 (en) | 2007-09-26 | 2013-01-08 | Toyota Jidosha Kabushiki Kaisha | Device and method for detecting degradation of fuel for internal combustion engine |
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