JPS6036759Y2 - Turbocharger lubrication system - Google Patents
Turbocharger lubrication systemInfo
- Publication number
- JPS6036759Y2 JPS6036759Y2 JP13705080U JP13705080U JPS6036759Y2 JP S6036759 Y2 JPS6036759 Y2 JP S6036759Y2 JP 13705080 U JP13705080 U JP 13705080U JP 13705080 U JP13705080 U JP 13705080U JP S6036759 Y2 JPS6036759 Y2 JP S6036759Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- side bearing
- engine
- lubricating
- conduit
- 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
Landscapes
- Supercharger (AREA)
Description
【考案の詳細な説明】 本考案は排気ターボ過給機の潤滑装置に関する。[Detailed explanation of the idea] The present invention relates to a lubrication device for an exhaust turbocharger.
排気ターボ過給機は、エンジンの排気圧によって回転さ
れるタービンを吸気系に設けたコンプレッサに連結し、
このコンプレッサの回転により、エンジンへの吸気を過
給するものである。An exhaust turbo supercharger connects a turbine rotated by engine exhaust pressure to a compressor installed in the intake system.
The rotation of this compressor supercharges the intake air to the engine.
この種の排気ターボ過給機は高速で回転されるために潤
滑油による給油が必要となるが、従来は、エンジン用の
オイルポンプを用いてタービン及びコンプレッサの軸受
部へ潤滑油を給油していた。This type of exhaust turbo supercharger requires lubricating oil because it rotates at high speed, but conventionally, an engine oil pump was used to supply lubricating oil to the bearings of the turbine and compressor. Ta.
そのため、排気温度の高い高負荷、高速運転の直後のエ
ンジン停止時には、高温にさらされていたタービン部が
十分冷却される前に過給機への潤滑油の供給が停止する
ため、タービン部からその軸受へ熱が伝わり、焼付、潤
滑油の固着等の不具合が発生していた。Therefore, when the engine is stopped immediately after high-load or high-speed operation with high exhaust temperature, the supply of lubricating oil to the turbocharger stops before the turbine section, which has been exposed to high temperatures, has sufficiently cooled down. Heat was transferred to the bearings, causing problems such as seizure and lubricating oil sticking.
本考案の目的は、エンジンの停止後においても、排気タ
ーボ過給機の高温にさらされやすいタービン側軸受部へ
潤滑油を供給し、効果的に冷却作用を行ないうる潤滑装
置を提供することにある。The purpose of the present invention is to provide a lubricating device that can supply lubricating oil to the turbine side bearing part of the exhaust turbocharger, which is easily exposed to high temperatures, even after the engine has stopped, and can effectively perform a cooling action. be.
本考案によれば、エンジンによって駆動されるオイルポ
ンプにより潤滑油を、途中より分岐したオイル導管を介
してタービン側軸受部及びコンプレッサ側軸受部へそれ
ぞれ供給するようにしたターボ過給機の潤滑装置におい
て、前記潤滑油のオイル導管の途中部分を分岐させて蓄
圧油溜めに接続し、該分岐路に設定圧以上の時油溜め側
へのみ潤滑油を流すチェック弁を設け、エンジン作動中
に潤滑油の一部を前記油溜めに溜めると共に、該油溜め
をエンジン停止時に開となる電磁弁を介して、タービン
側軸受部に通じる前記オイル導管に接続し、該タービン
側軸受部のオイル導管からコンプレッサ側軸受部のオイ
ル導管へ潤滑油が流れるのを阻止するチェック弁を設け
、エンジン停止後に前記油溜め内の潤滑油を集中的にタ
ービン側軸受部に供給するようにした潤滑装置が提供さ
れる。According to the present invention, a lubricating device for a turbo supercharger is configured to supply lubricating oil by an oil pump driven by an engine to a turbine side bearing portion and a compressor side bearing portion through oil conduits branched from the middle. In this method, the lubricant oil conduit is branched in the middle and connected to a pressure storage oil reservoir, and a check valve is installed in the branch line to allow the lubricant to flow only to the oil reservoir when the pressure is higher than a set pressure, so that the lubricant can be lubricated while the engine is running. A portion of the oil is stored in the oil reservoir, and the oil reservoir is connected to the oil conduit leading to the turbine side bearing through a solenoid valve that is opened when the engine is stopped, and the oil is supplied from the oil conduit of the turbine side bearing. A lubricating device is provided which is provided with a check valve that prevents lubricating oil from flowing into an oil conduit of a compressor side bearing, and which concentrates the lubricating oil in the oil reservoir and supplies it to the turbine side bearing after the engine is stopped. Ru.
以下、本考案を添付図面に示した実施例について詳細に
説明する。Hereinafter, the present invention will be described in detail with reference to embodiments shown in the accompanying drawings.
図において、１はエンジン、２は吸気系に設けたコンプ
レッサ、３は排気系に設けたタービンであり、排気圧に
よりタービン３が回転すると、これに連結されたコンプ
レッサ２が回転味エンジン１への吸気を過給することは
よく知られている。In the figure, 1 is an engine, 2 is a compressor installed in the intake system, and 3 is a turbine installed in the exhaust system. When the turbine 3 rotates due to exhaust pressure, the compressor 2 connected to this rotates the engine 1. Supercharging the intake air is well known.
なお、２２はマフラ、２４は排気バイパス弁である。Note that 22 is a muffler and 24 is an exhaust bypass valve.
エンジン１内の潤滑油は、オイル導管４を通りオイルポ
ンプ５によって汲み出され、オイルフィルタ６を通じて
一方では図示しないがエンジンの各部へ供給されると共
に、他方ではオイル導管７，８を通じてターボ過給機の
コンプレッサ側軸受部１２に供給され、また同時にオイ
ル導管８，９間に設けたチェック弁１０、タービン側オ
イル導管９を通じてタービン側軸受部１１に供給され、
これらの軸受部の潤滑と冷却の作用を行なう。The lubricating oil in the engine 1 is pumped out by an oil pump 5 through an oil conduit 4, and is supplied to various parts of the engine (not shown) through an oil filter 6 on the one hand, and to turbo supercharging through oil conduits 7 and 8 on the other hand. The oil is supplied to the compressor side bearing section 12 of the machine, and is also simultaneously supplied to the turbine side bearing section 11 through the check valve 10 provided between the oil conduits 8 and 9 and the turbine side oil conduit 9.
It lubricates and cools these bearings.
これらの軸受部１１，１２を通過した潤滑油は、オイル
集合部１３、オイル導管１４を経てエンジン１へ戻され
る。The lubricating oil that has passed through these bearings 11 and 12 is returned to the engine 1 via an oil collecting section 13 and an oil conduit 14.
オイル導管７はチェック弁１５を介して蓄圧油溜め１７
に接続されている。The oil conduit 7 is connected to a pressure accumulation oil reservoir 17 via a check valve 15.
It is connected to the.
この油溜め１７は、筐体１７ａの内部で摺動可能なピス
トン１９と、ばね１８から戊る。The oil reservoir 17 is separated from the piston 19 and the spring 18, which are slidable inside the housing 17a.
エンジン１の回転数が上昇し、それに伴って潤滑油の圧
力がある設定圧以上に上昇すると、チェック弁１５が開
き、潤滑油の一部は油溜め１７に流入味ばね１８に抗し
てピストン１９を押し上げながらこの油溜め１７に蓄え
られる。When the rotational speed of the engine 1 increases and the pressure of the lubricating oil rises above a certain set pressure, the check valve 15 opens and a portion of the lubricating oil flows into the oil reservoir 17 against the spring 18 and pistons. Oil is stored in this reservoir 17 while pushing up oil 19.
油溜め１７はオイル導管９を介してタービン側軸受部１
１に接続されているが、このオイル導管９の油溜め１７
とチェック弁１０の接続部との間には電磁弁１６が設け
である。The oil reservoir 17 is connected to the turbine side bearing part 1 via the oil conduit 9.
1, but the oil sump 17 of this oil conduit 9
A solenoid valve 16 is provided between the check valve 10 and the connecting portion of the check valve 10.
この電磁弁１６はエンジン停止時に開となるスイッチ２
１、バッテリ２３により作動され、スイッチ２１が開と
なった時電磁弁１６も開くようになっている。This solenoid valve 16 is a switch 2 that is opened when the engine is stopped.
1. It is operated by a battery 23, and when the switch 21 is opened, the solenoid valve 16 is also opened.
従って、通常の運転時は、電磁弁１６は閉じられている
。Therefore, during normal operation, the solenoid valve 16 is closed.
エンジン１を停止すると、このエンジンによって駆動さ
れるオイルポンプ５も同時に停止し、オイル導管４，７
．８及びチェック弁１０を通じての潤滑油の供給は停止
される。When the engine 1 is stopped, the oil pump 5 driven by this engine is also stopped at the same time, and the oil conduits 4 and 7 are stopped.
．． The supply of lubricating oil through 8 and check valve 10 is stopped.
ところが、前述のように電磁弁１６は開となるので、オ
イル溜め１７に加圧して蓄えられていた潤滑油は、ばね
１８の作用でピストン１９が押し下げられて電磁弁１６
及びオイル導管９を通じてタービン側軸受部１１に供給
される。However, as described above, since the solenoid valve 16 is opened, the lubricating oil that had been pressurized and stored in the oil reservoir 17 is pushed down by the action of the spring 18 and the solenoid valve 16 is
The oil is supplied to the turbine side bearing section 11 through the oil conduit 9.
このとき、チェック弁１０によりコンプレッサ側軸受部
１２へ潤滑油が流れるのが防止される。At this time, the check valve 10 prevents lubricating oil from flowing to the compressor side bearing portion 12.
従って、油溜め１７内の潤滑油は、熱的に苛酷な条件に
あるタービン側軸受部１１に集中的に供給されることと
なる。Therefore, the lubricating oil in the oil reservoir 17 is intensively supplied to the turbine side bearing portion 11 which is under thermally severe conditions.
なお、２０は油溜め１７内の潤滑油をエンジン１へ戻す
オイル導管である。Note that 20 is an oil conduit that returns lubricating oil in the oil reservoir 17 to the engine 1.
このように、本考案では、エンジンの停止後に、排気タ
ービン側軸受部１１に集中的に潤滑油を供給するので、
排気温度の高い高負荷、高速運転直後にエンジンを停止
した場合でも、少ない潤滑油量で長時間にわたってター
ビン側軸受部１１を冷却することができる。In this way, in the present invention, lubricating oil is intensively supplied to the exhaust turbine side bearing part 11 after the engine has stopped.
Even when the engine is stopped immediately after high-load, high-speed operation with high exhaust temperature, the turbine-side bearing portion 11 can be cooled for a long time with a small amount of lubricating oil.
エンジン始動時のように軸受部への十分なオイル供給が
要求される時は、チェック弁１５が閉じているので集中
的にオイルを軸受部へ供給できる。When a sufficient supply of oil to the bearing is required, such as when starting an engine, the check valve 15 is closed so that oil can be supplied to the bearing in a concentrated manner.
また、本考案の潤滑装置は構造が簡単であるので、ター
ボ過給機を具えた既存のエンジンに装着するのが容易で
ある。Furthermore, since the lubricating device of the present invention has a simple structure, it can be easily installed in an existing engine equipped with a turbocharger.
図面は本考案の排気ターボ過給機の潤滑装置の一実施例
を示す回路図である。
１・・・・・・エンジン、４，７，８．９・・・・・・
オイル導管、５・・・・・・オイルポンプ、１０．１５
・・・・・・チェック弁、１１・・・・・・タービン側
軸受部、１２・・・・・・コンプレッサ側軸受部、１６
・・・・・・電磁弁、１７・・・・・・油溜め。The drawing is a circuit diagram showing an embodiment of a lubricating device for an exhaust turbo supercharger according to the present invention. 1... Engine, 4, 7, 8.9...
Oil conduit, 5...Oil pump, 10.15
... Check valve, 11 ... Turbine side bearing section, 12 ... Compressor side bearing section, 16
... Solenoid valve, 17 ... Oil sump.
Claims (1)
滑油を、途中より分岐したオイル導管８．９を介してタ
ービン側軸受部１１及びコンプレッサ側軸受部１２へそ
れぞれ供給するようにしたターボ過給機の潤滑装置にお
いて、前記潤滑油のオイル導管の途中部分を分岐させて
蓄圧油溜め１７に接続し、該分岐路に設定圧以上の時油
溜め１７側へのみ潤滑油を流すチェック弁１５を設け、
エンジン作動中に潤滑油の一部を前記油溜め１７に溜め
ると共に、該油溜めをエンジン停止時に開となる電磁弁
１６を介して、タービン側軸受部１１に通じる前記オイ
ル導管９に接続し、該タービン側軸受部１１のオイル導
管９からコンプレッサ側軸受部１２のオイル導管８へ潤
滑油が流れるのを阻止するチェック弁１０を設け、エン
ジン停止後に前記油溜め内の潤滑油を集中的にタービン
側軸受部１１に供給するようにした潤滑装置。Lubricating the turbo supercharger in which lubricating oil is supplied by an oil pump 5 driven by the engine 1 to the turbine side bearing section 11 and the compressor side bearing section 12 through oil conduit pipes 8.9 branched from the middle. In the device, a midway portion of the oil conduit for the lubricating oil is branched and connected to the pressure accumulation oil reservoir 17, and a check valve 15 is provided in the branch path to allow the lubricating oil to flow only to the oil reservoir 17 side when the pressure is higher than a set pressure,
A portion of the lubricating oil is stored in the oil reservoir 17 during engine operation, and the oil reservoir is connected to the oil conduit 9 leading to the turbine side bearing portion 11 via a solenoid valve 16 that is opened when the engine is stopped; A check valve 10 is provided to prevent lubricating oil from flowing from the oil conduit 9 of the turbine side bearing section 11 to the oil conduit 8 of the compressor side bearing section 12, and after the engine is stopped, the lubricating oil in the oil reservoir is intensively transferred to the turbine. A lubricating device configured to supply the side bearing portion 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13705080U JPS6036759Y2 (en) | 1980-09-29 | 1980-09-29 | Turbocharger lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13705080U JPS6036759Y2 (en) | 1980-09-29 | 1980-09-29 | Turbocharger lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5759929U JPS5759929U (en) | 1982-04-09 |
| JPS6036759Y2 true JPS6036759Y2 (en) | 1985-10-31 |
Family
ID=29497143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13705080U Expired JPS6036759Y2 (en) | 1980-09-29 | 1980-09-29 | Turbocharger lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6036759Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326271Y2 (en) * | 1985-03-08 | 1991-06-06 |
-
1980
- 1980-09-29 JP JP13705080U patent/JPS6036759Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5759929U (en) | 1982-04-09 |
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