JPH02161129A - Control device for turbo-charger - Google Patents

Control device for turbo-charger

Info

Publication number
JPH02161129A
JPH02161129A JP31496388A JP31496388A JPH02161129A JP H02161129 A JPH02161129 A JP H02161129A JP 31496388 A JP31496388 A JP 31496388A JP 31496388 A JP31496388 A JP 31496388A JP H02161129 A JPH02161129 A JP H02161129A
Authority
JP
Japan
Prior art keywords
oil
pressure
engine
turbine
control valve
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
Application number
JP31496388A
Other languages
Japanese (ja)
Inventor
Hideo Nagakura
永倉 秀雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to JP31496388A priority Critical patent/JPH02161129A/en
Publication of JPH02161129A publication Critical patent/JPH02161129A/en
Pending legal-status Critical Current

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  • Supercharger (AREA)

Abstract

PURPOSE:To invariably and adequately maintain the lubricating and cooling of an engine even when an abnormality occurs by arranging a control valve opened or closed in response to the oil pressure on the suction side of an oil pump feeding the pressure oil to the oil turbine of a turbo-charger. CONSTITUTION:Check valves 5a and 5b are arranged at two positions on a pressure oil pipeline 4 connected to an oil pump 2, and an oil turbine nozzle 6 is arranged between them. A pipeline 8 feeding the oil to the main hole 9 of an engine is connected to the suction side of the oil pump 2. A control valve 10 opened or closed in response to the pressure fluctuation of oil is arranged on the pipeline 8. When an abnormality occurs on the pressure oil pipeline 4, the control valve 10 is immediately closed. The leakage of oil is prevented, the oil pressure and oil quantity on the engine side are secured, and the lubricating and cooling of the engine are maintained.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、エンジン用ターボチャージャーの制御装置に
関するものである。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a control device for an engine turbocharger.

〈従来の技術〉 エンジンの出力を向上するターボチャージャーにおいて
、エンジンの排気圧により回転するタービンと、このタ
ービンとシャフトによって連結したコンプレッサーと、
前記シャフトに装着されオイルポンプから供給される圧
油によって回転するオイルタービンとを備え、エンジン
の低速時から急加速に移るときの排気圧タービンの応答
遅れによる圧縮空気量不足を前記オイルタービンの駆動
によって補助するようにしたものが、例えば、特公昭5
9−51649号で公知である。
<Prior art> A turbocharger that improves the output of an engine includes a turbine that rotates due to the exhaust pressure of the engine, a compressor that is connected to the turbine through a shaft,
The oil turbine is equipped with an oil turbine mounted on the shaft and rotated by pressure oil supplied from an oil pump, and the oil turbine is driven to compensate for the lack of compressed air amount due to a delay in the response of the exhaust pressure turbine when the engine shifts from low speed to sudden acceleration. For example, the special public relations system of 1973
No. 9-51649.

〈発明が解決しようとする課題〉 上記のような従来装置において、オイルタービンに供給
するオイルはオイルポンプによってエンジンオイルを汲
み揚げて使用している。そのため、若しオイルタービン
への圧油配管等が損傷してオイルが漏れるとエンジンオ
イルがなくなり、エンジンの焼き付きが発生するおそれ
がある。
<Problems to be Solved by the Invention> In the conventional apparatus as described above, engine oil is pumped up by an oil pump and used as oil to be supplied to the oil turbine. Therefore, if the pressure oil piping or the like to the oil turbine is damaged and oil leaks, there is a risk that the engine oil will run out and the engine will seize.

く課題を解決するための手段〉 本発明は、上記従来の問題点を解消するためになされた
もので、その特徴とする構成は、オイルポンプのオイル
吸入回路に油圧に応じて開閉する制御弁を設けたもので
ある。
Means for Solving the Problems> The present invention has been made to solve the above conventional problems, and its characteristic configuration is that a control valve that opens and closes in accordance with oil pressure is provided in the oil suction circuit of an oil pump. It has been established.

〈作   用〉 上記の構成により、圧油回路の油圧力が異常に低下した
ときに制御弁を閉止し、オイルポンプへのオイルの吸入
を遮断するものである。
<Function> With the above configuration, when the oil pressure in the pressure oil circuit drops abnormally, the control valve is closed and the suction of oil into the oil pump is cut off.

く実 施 例〉 以下本発明の実施例を図面に基づいて説明する。第1図
において、1はフローディングメタル、6はオイルター
ビン用ノズル(オイルタービン、排気圧タービン並びに
コンプレッサーは図示省略)であり、オイルポンプ2と
圧油配管4にて接続されている。
Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. In FIG. 1, 1 is a floating metal, and 6 is an oil turbine nozzle (the oil turbine, exhaust pressure turbine, and compressor are not shown), which are connected to an oil pump 2 through a pressure oil pipe 4.

この圧油配管4には2個所にチエツク弁5a。This pressure oil pipe 4 is provided with check valves 5a at two locations.

5bが配置され、この両チエツク弁5a、5b間に前記
ノズル6が設けられている。
5b, and the nozzle 6 is provided between both check valves 5a and 5b.

前記オイルポンプ2の吸入側にはエンジンのオイルパン
より回路のオイルポンプで汲み揚げられエンジンのメイ
ンホール9に供給する配管8が接続されており、この配
管8にオイルの圧力の変動によって開閉する制御弁10
が設けられている。
A piping 8 is connected to the suction side of the oil pump 2, and is connected to a piping 8 that pumps up oil from the engine's oil pan using the circuit's oil pump and supplies it to the engine's main hole 9.This piping 8 opens and closes according to fluctuations in oil pressure. control valve 10
is provided.

また、前記オイルの圧力の変動によって開閉する制御弁
10に代えて第2図で示すように電磁制御弁11でもよ
い。こe−31,合、第3図で示すコントローラ12に
入力されるメインホール圧力。
Furthermore, instead of the control valve 10 that opens and closes according to fluctuations in oil pressure, an electromagnetic control valve 11 may be used as shown in FIG. This is the main hole pressure input to the controller 12 shown in FIG.

オイルタービンの圧油回路の圧力を入力とし、その出力
信号S2によって電磁制御弁11のソレノイドに通電し
て制御される。尚、第3図の81は、ブースト圧、トラ
ンスミッション位置、アクセルペダル位置、エンジン回
転等の運転条件を入力とし、ターボチャージャーを制御
する出力信号であり、第1図及び第2図の7はオイルポ
ンプ2が作動時、オイルポンプ2の吐出口より圧油配管
4を通りオイルタービンのノズル6より吐出された残り
の圧油がチエツク弁5bを開き、これを通過し、さらに
フローディングメタル1に分流した残りがオイルポンプ
2の吸入側に戻る回路となる。またオイルポンプ2が休
止中は、前記回路7はエンジン側オイルポンプ2より吐
出された圧油がフローディングメタル1に至る回路とな
る。
The pressure of the pressure oil circuit of the oil turbine is input, and the solenoid of the electromagnetic control valve 11 is energized and controlled by the output signal S2. Note that 81 in Figure 3 is an output signal that controls the turbocharger by inputting operating conditions such as boost pressure, transmission position, accelerator pedal position, and engine rotation, and 7 in Figures 1 and 2 is an output signal for controlling the turbocharger. When the pump 2 is in operation, the remaining pressure oil discharged from the nozzle 6 of the oil turbine through the pressure oil piping 4 from the discharge port of the oil pump 2 opens the check valve 5b, passes through this, and is further transferred to the floating metal 1. The remainder of the divided flow forms a circuit that returns to the suction side of the oil pump 2. Further, when the oil pump 2 is at rest, the circuit 7 serves as a circuit through which the pressure oil discharged from the engine-side oil pump 2 reaches the floating metal 1.

本発明は上記の通りの構造であるから、オイルポンプ2
から吐出される圧油はノズル6により制御されてオイル
タービンに供給される。
Since the present invention has the structure as described above, the oil pump 2
Pressure oil discharged from the nozzle 6 is controlled by the nozzle 6 and supplied to the oil turbine.

そこで、メインホール9の油圧あるいは圧油回路4の油
圧が低下するようなトラブルが発生した場合、第1図の
制御弁10においては、その圧力の異常変動によって自
己閉止し、第2図の電磁i1i+制御弁11においては
コントローラ12からの出力信号によるソレノイドの作
動によって閉止し、オイルタービン側の圧油回路4への
オイルの供給を遮断するものである。これにより、エン
ジン側の油圧、油量を確保する。
Therefore, if a trouble occurs in which the oil pressure in the main hole 9 or the oil pressure in the pressure oil circuit 4 decreases, the control valve 10 shown in FIG. 1 will self-close due to the abnormal pressure fluctuation, and The i1i+ control valve 11 is closed by actuation of a solenoid in response to an output signal from the controller 12, thereby cutting off the supply of oil to the pressure oil circuit 4 on the oil turbine side. This ensures the oil pressure and oil amount on the engine side.

〈発明の効果〉 以上のように本発明によると、ターボチャージャーのオ
イルタービンに圧油を供給するオイルポンプの吸入側回
路に、油圧に応じて開閉する制御弁を設けた構成である
から、オイルタービンの圧油回路に異常が発生したとき
には直ちに前記制御弁を閉止し、エンジンオイルの漏出
を防止すると共に、エンジン側の油圧、油量を確保して
エンジンの潤滑、冷却を保全する効果を有している。
<Effects of the Invention> As described above, according to the present invention, the suction side circuit of the oil pump that supplies pressure oil to the oil turbine of the turbocharger is provided with a control valve that opens and closes according to the oil pressure. When an abnormality occurs in the pressure oil circuit of the turbine, the control valve is immediately closed to prevent engine oil from leaking, and to ensure oil pressure and oil volume on the engine side to maintain engine lubrication and cooling. are doing.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図及び第2図は本発明装置の回路図、第3図はコン
トローラを示す図である。 1・・・フローディングメタル、2・・・オイルポンプ
、6・・・オイルタービン用ノズル、8・・・配管、9
・・・メインホール、10・・・制御弁、11・・・電
磁制御弁、12・・・コントローラ。
1 and 2 are circuit diagrams of the apparatus of the present invention, and FIG. 3 is a diagram showing the controller. 1... Floating metal, 2... Oil pump, 6... Oil turbine nozzle, 8... Piping, 9
... Main hall, 10... Control valve, 11... Solenoid control valve, 12... Controller.

Claims (1)

【特許請求の範囲】 エンジンの排気圧により回転するタービン と、このタービンとシャフトによって連結された前記エ
ンジンの吸入空気を加圧供給するコンプレッサーと、前
記シャフトに装着されオイルポンプから供給される圧油
によって回転するオイルタービンとからなるターボチャ
ージャーにおいて、前記オイルポンプのオイル吸入回路
に油圧に応じて開閉する制御弁を設けたことを特徴とす
るターボチャージャーの制御装置。
[Scope of Claims] A turbine rotated by the exhaust pressure of the engine, a compressor connected to the turbine by a shaft and supplying pressurized intake air to the engine, and pressurized oil attached to the shaft and supplied from an oil pump. 1. A turbocharger control device comprising an oil turbine rotated by a turbocharger, characterized in that an oil suction circuit of the oil pump is provided with a control valve that opens and closes according to oil pressure.
JP31496388A 1988-12-15 1988-12-15 Control device for turbo-charger Pending JPH02161129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31496388A JPH02161129A (en) 1988-12-15 1988-12-15 Control device for turbo-charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31496388A JPH02161129A (en) 1988-12-15 1988-12-15 Control device for turbo-charger

Publications (1)

Publication Number Publication Date
JPH02161129A true JPH02161129A (en) 1990-06-21

Family

ID=18059776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31496388A Pending JPH02161129A (en) 1988-12-15 1988-12-15 Control device for turbo-charger

Country Status (1)

Country Link
JP (1) JPH02161129A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100410485B1 (en) * 2000-12-21 2003-12-18 현대자동차주식회사 A structure of lubrication for turbo-charger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100410485B1 (en) * 2000-12-21 2003-12-18 현대자동차주식회사 A structure of lubrication for turbo-charger

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