JPS6027786Y2 - turbo compound engine - Google Patents
turbo compound engineInfo
- Publication number
- JPS6027786Y2 JPS6027786Y2 JP1980185510U JP18551080U JPS6027786Y2 JP S6027786 Y2 JPS6027786 Y2 JP S6027786Y2 JP 1980185510 U JP1980185510 U JP 1980185510U JP 18551080 U JP18551080 U JP 18551080U JP S6027786 Y2 JPS6027786 Y2 JP S6027786Y2
- Authority
- JP
- Japan
- Prior art keywords
- engine
- supercharger
- power recovery
- recovery turbine
- clutch
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Supercharger (AREA)
Description
【考案の詳細な説明】
この考案はパワリカバリタービンにより駆動される容積
式過給機によって低中速時エンジンを過給するようにし
たターボコンパウンドエンジンに関する。[Detailed Description of the Invention] This invention relates to a turbo compound engine in which the engine is supercharged at low and medium speeds by a positive displacement supercharger driven by a power recovery turbine.
従来のターボコンパウンドエンジンは遠心過給機を駆動
した排気によりさらにパワリカバリタービンを駆動して
、その出力を伝達機構でエンジンのクランク軸へ伝導す
ることにより、排気の有効利用を図っているが、このよ
うなターボコンパウンドエンジンでは、遠心過給機の駆
動により排気圧が上昇するため、特に低中速域で加速性
が悪くなると共に、エンジンのある出力以下では伝達機
構によりエンジンに接続されたパワリカバリタービンが
エンジンの負荷として作用するため、逆に動力損失が生
じるなどの不具合があった。In conventional turbo compound engines, the exhaust gas that drives the centrifugal supercharger further drives a power recovery turbine, and the output is transmitted to the engine crankshaft using a transmission mechanism, thereby making effective use of the exhaust gas. In such a turbo compound engine, the exhaust pressure increases due to the drive of the centrifugal supercharger, resulting in poor acceleration, especially in the low and medium speed range, and below a certain output of the engine, the power connected to the engine by the transmission mechanism decreases. Since the recovery turbine acted as a load on the engine, there were problems such as power loss.
この考案はかかる不具合を改善する目的でなされたもの
で、パワリカバリタービンにエンジンの低中速域で駆動
される容積式過給機を設けて、この過給機によりエンジ
ンを過給するようにしたターボコンパウンドエンジンを
提供して低中速域の加速性の向上と、低出力域での損失
馬力の低減及び低中速域でのトルク向上を図ろうとする
ものである。This idea was made with the aim of improving this problem, and the power recovery turbine is equipped with a positive displacement supercharger that is driven in the low and medium speed range of the engine, and the engine is supercharged by this supercharger. The aim is to provide a turbo compound engine that improves acceleration in the low-to-medium speed range, reduces horsepower loss in the low-output range, and improves torque in the low-to-medium speed range.
以下この考案を図示の一実施例により詳述すると、図に
おいて１はエンジン、２は該エンジンのクランク軸で、
ピストン３とコンロッド４で連結されている。This invention will be explained in detail below with reference to an illustrated embodiment. In the figure, 1 is an engine, 2 is a crankshaft of the engine,
It is connected by a piston 3 and a connecting rod 4.
５は遠心過給機で、コンプレッサ５ａ側が上記ピストン
３を収容したシリンダ６の各吸気ポート６ａ側にアフタ
クーラ７を介して接続されていると共に、タービン５ｂ
側はシリンダ６の排気ポート６ｂ側に接続されている。5 is a centrifugal supercharger, the compressor 5a side is connected to each intake port 6a side of the cylinder 6 housing the piston 3 via an aftercooler 7, and the turbine 5b
The side is connected to the exhaust port 6b side of the cylinder 6.
また上記タービン５ｂを出た排気はタービン５ｂに管路
８を介して接続されたパワリカバリタービン９に流入し
てこれを駆動するようになっている。Further, the exhaust gas exiting the turbine 5b flows into a power recovery turbine 9 connected to the turbine 5b via a pipe 8 to drive it.
一方パワリカバリタービン９の回転Ｍ９ａは歯車などの
伝達機構１０を介してクラッチ軸１１に接続されている
。On the other hand, the rotation M9a of the power recovery turbine 9 is connected to a clutch shaft 11 via a transmission mechanism 10 such as a gear.
クラッチ１１の一端はクラッチ１２を介して容積式過給
機１３に、また他端はクラッチ１４及び歯車１５を介し
てクランク軸２に接続されており、容積式過給機１３の
吐出圧は管路１６により遠心過給機５のブロワ５ａ吐出
圧に合流されていると共に、上記各クラッチ１２，１４
のうちクラッチ１２はエンジン１の低速域から中速域で
オン、中速域から高速域でオフ、クラッチ１４は低速域
から中速域でオフ、中速域から高速域でオンするように
なっており、これらの制御はエンジン１の回転速度を検
出する図示しない検出器からの信号により行なわれるよ
うになっている。One end of the clutch 11 is connected to a positive displacement supercharger 13 via a clutch 12, and the other end is connected to the crankshaft 2 via a clutch 14 and a gear 15, and the discharge pressure of the positive displacement supercharger 13 is connected to a tube. The passage 16 joins the discharge pressure of the blower 5a of the centrifugal supercharger 5, and the clutches 12, 14
Of these, the clutch 12 is turned on in the low to medium speed range of the engine 1 and turned off in the medium to high speed range, and the clutch 14 is turned off in the low to medium speed range and turned on in the medium to high speed range. These controls are performed by signals from a detector (not shown) that detects the rotational speed of the engine 1.
この考案は以上詳述したようになるから、エンジン１の
低中速域ではクラッチ１２がオン、クラッチ１４がオフ
となって、パワリカバリタービン９により容積式過給機
１３が駆動され、この容積式過給機１３の過給圧が低速
域で効率の悪い遠心過給機５の過給圧に合流されるため
、エンジン１の加速性とトルクの向上が図れると共に、
クランク軸２とパワリカバリタービン９の間が遮断され
るため、パワリカバリタービン９によるエンジン１の動
力損失も低減できる。Since this idea has been described in detail above, in the low-medium speed range of the engine 1, the clutch 12 is on and the clutch 14 is off, and the power recovery turbine 9 drives the positive displacement supercharger 13, and this displacement Since the supercharging pressure of the type supercharger 13 is combined with the supercharging pressure of the centrifugal supercharger 5, which is inefficient in the low speed range, the acceleration performance and torque of the engine 1 can be improved, and
Since the crankshaft 2 and the power recovery turbine 9 are disconnected, the power loss of the engine 1 due to the power recovery turbine 9 can also be reduced.
またエンジン１が高速域になるとクラッチ１２がオフし
、クラッチ１４がオンするため、パワリカバリタービン
９の駆動力がエンジン１の出力増大に寄与するようにな
り、エンジン１の出力向上が図れるようになる。Furthermore, when the engine 1 reaches a high speed range, the clutch 12 is turned off and the clutch 14 is turned on, so that the driving force of the power recovery turbine 9 contributes to increasing the output of the engine 1, so that the output of the engine 1 can be improved. Become.
図面はこの考案の一実施例を示す概略構成図である。
１はエンジン、２はクランク軸、５は遠心過給機、９は
パワリカバリタービン、１０は伝達！構、１２及び１４
はクラッチ、１３は容積式過給機。The drawing is a schematic diagram showing an embodiment of this invention. 1 is the engine, 2 is the crankshaft, 5 is the centrifugal supercharger, 9 is the power recovery turbine, and 10 is the transmission! structure, 12 and 14
is a clutch, and 13 is a positive displacement supercharger.
Claims (1)
ビン５ｂ側に、タービン５ｂを出た排気で駆動されるパ
ワリカバリタービン９を設け、このパワリカバリタービ
ン９で発生した動力を伝達機構１０でエンジン１のクラ
ンク軸２へ伝達するものにおいて、上記伝達機構１０の
途中にエンジン１の低中速域時パワリカバリタービン９
とクランク軸２の間を遮断し、高速時接続するクラッチ
１４と、エンジン１の低中速時パワリカバリタービン９
と容積式過給機１３の間を接続し、高速時遮断するクラ
ッチ１２を設けてなるターボコンパウンドエンジン。A power recovery turbine 9 driven by the exhaust gas exiting the turbine 5b is provided on the turbine 5b side of the supercharger 5 of the engine 1 equipped with the centrifugal supercharger 5, and the power generated by the power recovery turbine 9 is transmitted. In the mechanism 10 that transmits power to the crankshaft 2 of the engine 1, there is a power recovery turbine 9 in the low-medium speed range of the engine 1 in the middle of the transmission mechanism 10.
a clutch 14 that disconnects between the engine 1 and the crankshaft 2 and connects at high speeds, and a power recovery turbine 9 of the engine 1 at low and medium speeds.
A turbo compound engine is provided with a clutch 12 that connects between a positive displacement supercharger 13 and a positive displacement supercharger 13 and shuts off at high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980185510U JPS6027786Y2 (en) | 1980-12-25 | 1980-12-25 | turbo compound engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980185510U JPS6027786Y2 (en) | 1980-12-25 | 1980-12-25 | turbo compound engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57109229U JPS57109229U (en) | 1982-07-06 |
| JPS6027786Y2 true JPS6027786Y2 (en) | 1985-08-22 |
Family
ID=29986622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980185510U Expired JPS6027786Y2 (en) | 1980-12-25 | 1980-12-25 | turbo compound engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027786Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6063036U (en) * | 1983-10-07 | 1985-05-02 | 川崎重工業株式会社 | Internal combustion engine air supply system |
| JPS61212632A (en) * | 1985-03-18 | 1986-09-20 | Mitsubishi Heavy Ind Ltd | Turbocompound engine |
| JPH053717Y2 (en) * | 1985-07-19 | 1993-01-28 |
-
1980
- 1980-12-25 JP JP1980185510U patent/JPS6027786Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57109229U (en) | 1982-07-06 |
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