JPS6246824Y2 - - Google Patents
Info
- Publication number
- JPS6246824Y2 JPS6246824Y2 JP8095883U JP8095883U JPS6246824Y2 JP S6246824 Y2 JPS6246824 Y2 JP S6246824Y2 JP 8095883 U JP8095883 U JP 8095883U JP 8095883 U JP8095883 U JP 8095883U JP S6246824 Y2 JPS6246824 Y2 JP S6246824Y2
- Authority
- JP
- Japan
- Prior art keywords
- turbocharger
- lubricating oil
- solenoid valve
- engine
- oil
- 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
- 239000010687 lubricating oil Substances 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 239000000314 lubricant Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Supercharger (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、ターボチヤージヤ付エンジンにおけ
る油経路の異常処理装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an oil path abnormality processing device in a turbocharged engine.
［従来の技術と問題点］
エンジンの潤滑油経路から分岐されてターボチ
ヤージヤへの潤滑油を供給するバイパス路におい
て、制御バルブを設けると共に、検知手段を設け
て、ターボチヤージヤの温度上昇により、制御バ
ルブを開いて、焼付き防止を計る方式（実開昭50
−90931号）や、バイパス路に並列にオリフイス
およびソレノイドバルブを設けて、上記バルブを
エンジンの燃料供給管路における圧力変動で開閉
制御し、ターボチヤージヤにおける漏油、焼付き
を防止するようにしたもの（実開昭50−20941
号）が知られている。[Prior Art and Problems] A control valve is provided in a bypass path that branches off from the lubricating oil path of the engine and supplies lubricating oil to the turbocharger, and a detection means is provided to prevent the control valve from turning off due to a rise in the temperature of the turbocharger. A method to prevent seizure by opening the
-90931), or one in which an orifice and solenoid valve are installed in parallel in the bypass passage, and the opening and closing of the valve is controlled by pressure fluctuations in the engine's fuel supply line to prevent oil leakage and seizure in the turbocharger. (Jitsukai 50-20941
No.) is known.
しかし、これらは、ターボチヤージヤ自体の状
態、あるいはエンジン駆動の状態によつて、ター
ボチヤージヤへの潤滑油供給量を制御するもので
あつて、その潤滑油供給系における異常検知では
ない。 However, these methods control the amount of lubricant supplied to the turbocharger depending on the state of the turbocharger itself or the state of engine driving, and do not detect abnormalities in the lubricant supply system.
また、別に、エンジン潤滑油供給系の異常につ
いての警報手段などは、例えば特開昭50−135451
号、実開昭49−56338号などで知られている。 Separately, warning means for abnormalities in the engine lubricating oil supply system are disclosed in Japanese Patent Application Laid-Open No. 50-135451, for example.
It is known as Utility Model No. 49-56338.
しかし、ここで問題にするのは、エンジンの潤
滑油経路から分岐されてターボチヤージヤへの潤
滑油を供給するバイパス路における異常について
である。すなわち、ターボチヤージヤへの分岐バ
イパス路は、金属パイプなどでエンジンの潤滑油
経路からターボチヤージヤへと接続されて構成さ
れているのが一般的であり、この場合には、ター
ボチヤージヤが極めて高い回転数で駆動される関
係で軸受などの発熱が大きく、潤滑油が、硬化、
炭化してターボチヤージヤの潤滑系に詰りを発生
する危険が多く、これによつて、上記バイパス路
内圧が上昇し、潤滑油供給が充分に行えなくなる
という問題があり、また、エンジン振動などで上
記バイパス路の金属管が外れあるいは切損して、
ターボチヤージヤへの潤滑油供給が不可となり、
焼付の原因となるだけでなく、その発熱によつ
て、漏出したオイルに引火し、火災を起しかねな
いという事情がある。 However, the problem here is an abnormality in a bypass path that branches off from the lubricating oil path of the engine and supplies lubricating oil to the turbocharger. In other words, the branch bypass path to the turbocharger is generally constructed by connecting the lubricating oil path of the engine to the turbocharger with a metal pipe or the like, and in this case, the turbocharger is driven at extremely high rotation speeds. As a result, bearings generate a lot of heat, causing lubricating oil to harden and harden.
There is a high risk of carbonization and clogging of the turbocharger's lubrication system, which raises the internal pressure of the bypass passage and makes it impossible to supply lubricant sufficiently.Furthermore, engine vibration may cause the bypass passage to become clogged. If the metal pipe of the road comes off or breaks,
Lubricating oil supply to the turbocharger becomes impossible,
Not only will this cause seizure, but the heat generated may ignite the leaked oil and cause a fire.
本考案は上記事情にもとづいてなされたもの
で、ターボチヤージヤへの潤滑油供給経路におい
て、内圧を検知して、その異常により、これを報
知しかつ上記経路（バイパス）への潤滑油供給を
遮断するようにしたターボチヤージヤ付エンジン
における油経路の異常処理装置を提供しようとす
るものである。 The present invention was developed based on the above circumstances, and detects the internal pressure in the lubricant supply route to the turbocharger, and if there is an abnormality, it is notified and the lubricant supply to the above route (bypass) is cut off. It is an object of the present invention to provide an oil path abnormality processing device in such a turbocharged engine.
［問題点を解決するための手段］
この目的のため、本考案はエンジンの潤滑油経
路より分岐されてターボチヤージヤに潤滑油を供
給するバイパス路において、そのバイパス路入口
にソレノイドバルブを設置すると共に、上記ソレ
ノイドバルブとターボチヤージヤとの間におい
て、バイパス路を通る潤滑油の圧力を検知する手
段を設け、上記検知手段は可及的にターボチヤー
ジヤに近く設置すると共に、圧力の上限および下
限でスイツチングする信号発生回路を具備し、信
号の発生で上記ソレノイドバルブを閉じかつ警報
手段を動作する回路を具備したことを特徴とする
ものである。[Means for Solving the Problems] For this purpose, the present invention installs a solenoid valve at the inlet of a bypass path that branches off from the lubricating oil path of the engine and supplies lubricating oil to the turbocharger, and A means for detecting the pressure of the lubricating oil passing through the bypass path is provided between the solenoid valve and the turbocharger, and the detection means is installed as close to the turbocharger as possible, and generates a signal for switching at the upper and lower limits of the pressure. The present invention is characterized in that it includes a circuit that closes the solenoid valve and operates an alarm means when a signal is generated.
［実施例］
以下、本考案の一実施例を第１図、第２図を参
照して具体的に説明する。図において、符号１は
エンジン本体であり、オイルパン２、オイルポン
プ３を介して、上記エンジン本体１のための潤滑
油経路４が構成されている。また、上記エンジン
本体のためのターボチヤージヤ５は、上記オイル
ポンプ３の吐出側からオイルパン２へのバイパス
路６の途中に設けられ、潤滑油を供給するように
なつている。上記バイパス路６の入口側には、ソ
レノイドバルブ７が設けてあり、上記ソレノイド
バルブ７とターボチヤージヤ５との間には、でき
るだけターボチヤージヤ５の潤滑油入口に近く、
油圧検知手段８が設けられている。上記油圧検知
手段８は設定された上限以上でスイツチ・オン
し、下限以下でスイツチ・オンする二極形のスイ
ツチ９に連動されており、上記スイツチ９を含む
電気制御系は、電源１０に対してキースイツチ１
１を介して上記スイツチ９を直列接続し、運転席
への警報ランプ１２およびトランジスタスイツチ
１３のベースに電気信号を与えるようにしてあ
り、上記トランジスタ１３のオンにより、上記ソ
レノイドバルブ７を閉じるようにしてある。[Example] Hereinafter, an example of the present invention will be specifically described with reference to FIGS. 1 and 2. In the figure, reference numeral 1 is an engine main body, and a lubricating oil path 4 for the engine main body 1 is configured via an oil pan 2 and an oil pump 3. Further, a turbocharger 5 for the engine main body is provided in the middle of a bypass path 6 from the discharge side of the oil pump 3 to the oil pan 2, and is adapted to supply lubricating oil. A solenoid valve 7 is provided on the inlet side of the bypass passage 6, and a solenoid valve 7 is provided between the solenoid valve 7 and the turbocharger 5 as close as possible to the lubricating oil inlet of the turbocharger 5.
Oil pressure detection means 8 is provided. The oil pressure detection means 8 is linked to a bipolar switch 9 that turns on when the upper limit is exceeded and turns on when the lower limit is below. key switch 1
The switch 9 is connected in series through the switch 1 to apply an electric signal to a warning lamp 12 to the driver's seat and the base of a transistor switch 13, and when the transistor 13 is turned on, the solenoid valve 7 is closed. There is.
このような構成では、ターボチヤージヤ５の潤
滑油経路、例えば、軸受部において、潤滑油の硬
化、炭化が起り、流通を妨げるようになると、バ
イパス路６の内圧が上がり、上限のスイツチがオ
ンして、警報ランプ１２を点灯し、ソレノイドバ
ルブ７を閉じる。これによつて、運転者は、運転
を中止し、ターボチヤージヤの補修、整備を行な
い、詰りの原因を除くことができる。 In such a configuration, if the lubricating oil hardens or carbonizes in the lubricating oil path of the turbocharger 5, for example in the bearing, and becomes obstructed from flowing, the internal pressure of the bypass path 6 increases and the upper limit switch is turned on. , the alarm lamp 12 is turned on and the solenoid valve 7 is closed. This allows the driver to stop driving, repair or maintain the turbocharger, and eliminate the cause of the blockage.
また、バイパス路６の金属管部分が外れ、ある
いは切損すると、内圧が低下するので、下限のス
イツチがオンして、前述同様、警報ランプ１２が
点灯し、ソレノイドバルブ７を閉じて、潤滑油の
洩出を停止し、火災などの原因を早期に回避でき
る。 Furthermore, if the metal pipe part of the bypass path 6 comes off or breaks, the internal pressure will drop, so the lower limit switch will be turned on, the alarm lamp 12 will light up as described above, the solenoid valve 7 will be closed, and the lubricating oil will be turned on. It is possible to stop the leakage of water and quickly avoid causes such as fires.
［考案の効果］
本考案は、以上詳述したように、ターボチヤー
ジヤへの潤滑油供給経路（バイパス路）の圧力異
常を検知することで、ターボチヤージヤの潤滑系
の詰りを検知し、あるいは、バイパス路での漏油
を検知して、未然に焼付きによるターボチヤージ
ヤの損傷、漏油による火災などの大事故を防止で
きるという実用上の効果を奏しうる。[Effects of the invention] As detailed above, the present invention detects a pressure abnormality in the lubricating oil supply path (bypass path) to the turbocharger, thereby detecting clogging of the lubrication system of the turbocharger, or This has the practical effect of being able to detect oil leaks in the engine and prevent major accidents such as damage to the turbocharger due to seizure and fires due to oil leaks.
第１図は本考案の一実施例を示す潤滑油系の経
路図、第２図は同電気制御系の回路図である。
１……エンジン本体、２……オイルパン、３…
…オイルポンプ、４……潤滑油経路、５……ター
ボチヤージヤ、６……バイパス路、７……ソレノ
イドバルブ、８……油圧検知手段、９……スイツ
チ、１０……電源、１１……キースイツチ、１２
……警報ランプ、１３……トランジスタスイツ
チ。
FIG. 1 is a route diagram of a lubricating oil system showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of the electrical control system. 1...Engine body, 2...Oil pan, 3...
... Oil pump, 4 ... Lubricating oil path, 5 ... Turbo charger, 6 ... Bypass path, 7 ... Solenoid valve, 8 ... Oil pressure detection means, 9 ... Switch, 10 ... Power supply, 11 ... Key switch, 12
...Alarm lamp, 13...Transistor switch.
Claims (1)
ヤージヤに潤滑油を供給するバイパス路におい
て、そのバイパス路入口にソレノイドバルブを設
置すると共に、上記ソレノイドバルブとターボチ
ヤージヤとの間において、バイパス路を通る潤滑
油の圧力を検知する手段を設け、上記検知手段は
可及的にターボチヤージヤに近く設置すると共
に、圧力の上限および下限でスイツチングする信
号発生回路を具備し、信号の発生で上記ソレノイ
ドバルブを閉じかつ警報手段を動作する回路を具
備したことを特徴とするターボチヤージヤ付エン
ジンにおける油経路の異常処置装置。 A solenoid valve is installed at the inlet of the bypass passage that branches off from the lubricating oil passage of the engine and supplies lubricating oil to the turbocharger, and the pressure of the lubricating oil passing through the bypass passage is installed between the solenoid valve and the turbocharger. The detection means is installed as close to the turbocharger as possible, and is equipped with a signal generation circuit that switches at the upper and lower limits of the pressure, and when the signal is generated, the solenoid valve is closed and the alarm means is activated. An abnormality treatment device for an oil path in a turbocharged engine, characterized by comprising an operating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8095883U JPS59186431U (en) | 1983-05-27 | 1983-05-27 | Oil path abnormality treatment device for turbo-charged engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8095883U JPS59186431U (en) | 1983-05-27 | 1983-05-27 | Oil path abnormality treatment device for turbo-charged engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59186431U JPS59186431U (en) | 1984-12-11 |
| JPS6246824Y2 true JPS6246824Y2 (en) | 1987-12-21 |
Family
ID=30210934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8095883U Granted JPS59186431U (en) | 1983-05-27 | 1983-05-27 | Oil path abnormality treatment device for turbo-charged engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59186431U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61123719A (en) * | 1984-11-19 | 1986-06-11 | Mazda Motor Corp | Lubricating device for turbosupercharger |
-
1983
- 1983-05-27 JP JP8095883U patent/JPS59186431U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59186431U (en) | 1984-12-11 |
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