JP2006342801A - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
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- JP2006342801A JP2006342801A JP2006155061A JP2006155061A JP2006342801A JP 2006342801 A JP2006342801 A JP 2006342801A JP 2006155061 A JP2006155061 A JP 2006155061A JP 2006155061 A JP2006155061 A JP 2006155061A JP 2006342801 A JP2006342801 A JP 2006342801A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/10—Engines with prolonged expansion in exhaust turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/14—Control of the alternation between or the operation of exhaust drive and other drive of a pump, e.g. dependent on speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
- F02B37/105—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump exhaust drive and pump being both connected through gearing to engine-driven shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
本発明は排気駆動過給式内燃機関に関する。 The present invention relates to an exhaust-drive supercharged internal combustion engine.
内燃機関の効率を高めるべく、内燃機関に排気駆動過給機を装備することは従来から公知である。排気駆動過給運転ないしターボチャージ運転の場合、エンジンから排出される排気ガスが排気駆動過給機のタービンで膨張し、その際、タービンがエンジンに供給すべき燃焼空気を圧縮する圧縮機を駆動する。この圧縮済み燃焼空気を所定の温度に冷却するため、排気駆動過給機の圧縮機とエンジンとの間にインタクーラが接続されている。かかる排気駆動過給運転ないしターボチャージ運転により、内燃機関の効率が向上する。 In order to increase the efficiency of an internal combustion engine, it is conventionally known to equip an internal combustion engine with an exhaust drive supercharger. In the case of exhaust drive supercharging operation or turbo charge operation, exhaust gas discharged from the engine expands in the turbine of the exhaust drive supercharger, and at that time, the turbine drives the compressor that compresses the combustion air to be supplied to the engine To do. In order to cool the compressed combustion air to a predetermined temperature, an intercooler is connected between the compressor of the exhaust drive supercharger and the engine. The efficiency of the internal combustion engine is improved by the exhaust drive supercharging operation or the turbo charge operation.
排気駆動過給機は、排気駆動過給機が内燃機関のエンジンにおける最良の空燃比を得るために必要ない余剰動力を用意する程の高い効率を示す。その余剰動力を利用すべく、特許文献1は、排気駆動過給機で発生した余剰動力を駆動動力に転換するため、排気駆動過給機に液圧ポンプを連結し、内燃機関の駆動軸に液圧モータを連結することを開示している。更に特許文献1は、排気ガスエネルギが不足している内燃機関の運転時、排気駆動過給機に連結された液圧ポンプを、駆動軸に連結された液圧モータから切り離し、液圧ポンプを電動補助ポンプによってモータとして駆動することを提案している。
上述の点から出発して、本発明の課題は、新しい内燃機関を提供することにある。 Starting from the above points, the object of the present invention is to provide a new internal combustion engine.
この課題は請求項1に記載の内燃機関により解決される。本発明に従う内燃機関はエンジンと排気駆動過給機とを利用し、エンジンは燃料を燃焼させて燃料燃焼で生じた動力でエンジンの駆動軸を駆動し、排気駆動過給機は内燃機関のエンジンから出る排気ガス流をタービン内で膨張させ、その際に得られた動力で、エンジンに供給する燃焼空気流を圧縮すべく圧縮機を駆動し、排気駆動過給機のタービンロータと圧縮機インペラで形成された排気駆動過給機ランナは第1液圧機械に連結され、エンジンの駆動軸は第2液圧機械に連結される。エンジンがその負荷上限値より大きな負荷で運転されているとき、排気駆動過給機ランナに連結された第1液圧機械が、液圧を発生するジェネレータ運転で排気駆動過給機ランナから機械的動力を取り出して液圧動力に転換し、この液圧動力が、エンジンの駆動軸に連結された第2液圧機械のモータ運転で機械的動力に転換され、駆動軸に伝達されこれを駆動する。エンジンがエンジン負荷下限値より小さな負荷で運転されているとき、エンジンの駆動軸に連結された第2液圧機械のジェネレータ運転で駆動軸から機械的動力を取り出して液圧動力に転換し、この液圧動力が、排気駆動過給機ランナに連結された第1液圧機械の、液圧を回転力に変換するモータ運転で機械的動力に転換され、排気駆動過給機に伝達されてこれを駆動する。排気駆動過給機ランナに連結された第1液圧機械と、駆動軸に連結された第2液圧機械とは、エンジン油槽を介在してエンジン油回路の油管を介して接続されている。 This problem is solved by the internal combustion engine according to claim 1. An internal combustion engine according to the present invention uses an engine and an exhaust driving supercharger, the engine burns fuel and drives the drive shaft of the engine with power generated by the fuel combustion, and the exhaust driving supercharger is an engine of the internal combustion engine. The exhaust gas flow coming out of the turbine is expanded in the turbine, and the compressor is driven by the power obtained at that time to compress the combustion air flow supplied to the engine. The turbine rotor and the compressor impeller of the exhaust drive supercharger The exhaust-drive supercharger runner formed in the above is connected to the first hydraulic machine, and the drive shaft of the engine is connected to the second hydraulic machine. When the engine is operated at a load greater than its upper load limit, the first hydraulic machine connected to the exhaust drive supercharger runner is mechanically driven from the exhaust drive supercharger runner by a generator operation that generates hydraulic pressure. The power is taken out and converted into hydraulic power. This hydraulic power is converted into mechanical power by the motor operation of the second hydraulic machine connected to the drive shaft of the engine, and transmitted to the drive shaft to drive it. . When the engine is operated at a load smaller than the engine load lower limit value, mechanical power is taken out of the drive shaft by the generator operation of the second hydraulic machine connected to the drive shaft of the engine, and converted to hydraulic power. The hydraulic power is converted into mechanical power by the motor operation of the first hydraulic machine connected to the exhaust-drive supercharger runner, which converts the hydraulic pressure into rotational force, and is transmitted to the exhaust-drive supercharger. Drive. The first hydraulic machine connected to the exhaust drive supercharger runner and the second hydraulic machine connected to the drive shaft are connected via an oil pipe of an engine oil circuit with an engine oil tank interposed therebetween.
このため本発明による内燃機関では、排気駆動過給機ランナに連結された第1液圧機械および駆動軸に連結された第2液圧機械が、内燃機関のエンジン負荷上限値より大きな負荷運転時並びにエンジン負荷下限値より小さな負荷運転時、エンジン油回路の油管並びにエンジン油回路のエンジン油槽を介して接続される。本発明に従い、従来の特許文献1における技術で必要であった補助ポンプ等の別個の液圧配管が省かれる。この結果内燃機関の構造は著しく単純になる。排気駆動過給機を駆動軸に液圧的に連結するためにエンジン油回路を利用することで、内燃機関の構造を非常にコンパクトになし得る。 Therefore, in the internal combustion engine according to the present invention, when the first hydraulic machine connected to the exhaust-drive supercharger runner and the second hydraulic machine connected to the drive shaft are in a load operation larger than the engine load upper limit value of the internal combustion engine. In addition, during a load operation smaller than the engine load lower limit value, connection is made via an oil pipe of the engine oil circuit and an engine oil tank of the engine oil circuit. In accordance with the present invention, separate hydraulic piping such as an auxiliary pump, which was necessary with the technique in the prior art document 1, is omitted. As a result, the structure of the internal combustion engine is significantly simplified. By using the engine oil circuit to hydraulically connect the exhaust drive supercharger to the drive shaft, the structure of the internal combustion engine can be made very compact.
本発明の有利な実施態様を従属請求項および以下の説明から明らかにする。次に図を参照して本発明の実施例を詳細に説明するが、本発明はこれに限定されない。 Advantageous embodiments of the invention emerge from the dependent claims and the following description. Next, examples of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to these.
以下図1〜図4を参照して本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to FIGS.
図1および図2は、本発明に基づく内燃機関10の第1実施例を、2つの異なった運転状態について示している。内燃機関10はエンジン11を利用し、該エンジン11は燃料を燃焼させ、その燃焼で発生した動力で、エンジン10のクランク軸ないし駆動軸12を駆動する。また内燃機関10は排気駆動過給機13を利用し、該過給機13はタービンと圧縮機を備えている。内燃機関10のエンジン11から出る排気ガス流が排気駆動過給機13のタービン内で膨張し、その際に生じた動力が、エンジン11に供給する燃焼空気流を圧縮すべく、排気駆動過給機の圧縮機に供給される。排気駆動過給機13のタービンロータと圧縮機インペラは軸を介して連結され、排気駆動過給機13の所謂排気駆動過給機ランナを形成している。
1 and 2 show a first embodiment of an
図1および図2において、排気駆動過給機13にクラッチ14を介して第1液圧機械15が連結されている。また、エンジン11の駆動軸12にクラッチ16を介して第2液圧機械17が連結されている。両液圧機械15、17はジェネレータ運転並びにモータ運転で駆動でき、内燃機関10のエンジン油回路のエンジン油槽18に油管19〜21(図1参照)ないし油管22〜24(図2参照)を介して接続されている。
1 and 2, a first
図1は、エンジン11がエンジン全負荷の好適には85%のエンジン負荷上限値より大きな負荷で運転されている運転状態にある内燃機関を示しれている。この運転状態では、図1に示すように、エンジン油槽18が油管19を介して、排気駆動過給機13に連結された第1液圧機械15に接続され、該液圧機械15が油管20を介して、駆動軸12に連結された第2液圧機械17に接続され、この第2液圧機械17が油管21を介してエンジン油槽18に接続されている。この場合、排気駆動過給機13に連結された第1液圧機械15はジェネレータ運転され、排気駆動過給機13の機械的余剰動力が、第1液圧機械15によって液圧動力に転換され、この動力は第2液圧機械17のモータ運転により機械的動力に転換され、駆動軸12に伝達されてこれを駆動する。従って、エンジン負荷上限値より大きなエンジン負荷時に、両液圧機械15、17により排気駆動過給機13の機械的余剰動力が、駆動軸12用の駆動動力に転換される。両液圧機械15、17は油管19、20、21を介して相互に、並びにエンジン油回路のエンジン油槽18に接続されている。
FIG. 1 shows an internal combustion engine in an operating state in which the
エンジンがエンジン全負荷の、好適には25%のエンジン負荷下限値より小さな負荷で運転されている場合、図2に示すように、エンジン油槽18が油管22を経て駆動軸12に連結された第2液圧機械17に接続され、この第2液圧機械17が油管23を経て排気駆動過給機13に連結された第1液圧機械15に接続され、第1液圧機械15が油管24を経てエンジン油槽18に接続されている。この際、駆動軸から機械的動力を取り出し、液圧動力に転換すべく、駆動軸12に連結された第2液圧機械17がジェネレータ運転される。その液圧動力は、排気駆動過給機13に連結された第1液圧機械15によって機械的動力に転換され、排気駆動過給機13に伝達されてこれを駆動する。従ってこの運転状態の場合も、両液圧機械15、17はエンジン油回路の油管を介して接続されている。
When the engine is operated at a load smaller than the engine load lower limit value, preferably 25% of the engine full load, the
図1と2の実施例では、液圧機械15、17を定容積形液圧機械として形成している。両液圧機械15、17を貫流する流量は、可調整吸込み絞り25、26で調整できる。エンジン11をエンジン負荷上限値より大きな負荷で運転している図1の運転状態では、吸込み絞り25は活動し、吸込み絞り26は活動していない。これに対しエンジン11をエンジン負荷下限値より小さな負荷で運転している図2の運転状態では、吸込み絞り26が活動し、吸込み絞り25が活動していない。両吸込み絞り25、26は、油の流れ方向において各液圧機械15、17に前置接続されている。油管19〜21並びに油管22〜24を通る油の流れ方向を、図1および図2では油管内の矢印で示している。
In the embodiment of FIGS. 1 and 2, the
従って、本発明に基づく内燃機関では、両液圧機械は、エンジン負荷上限値より大きな負荷運転状態とエンジン負荷下限値より小さな負荷運転状態では、エンジン油回路の油管を経て互いに接続されている。本発明に従い元来存在するエンジン油回路の油管を利用することで、追加的な液圧配管を必要としない内燃機関の非常にコンパクトな構造を実現でき。この内燃機関は、コンパクトな構造と小さな単位出力当たり重量の点で優れている。 Therefore, in the internal combustion engine according to the present invention, the two hydraulic machines are connected to each other via the oil pipe of the engine oil circuit in a load operation state larger than the engine load upper limit value and a load operation state smaller than the engine load lower limit value. By utilizing the oil pipe of the engine oil circuit that originally exists in accordance with the present invention, a very compact structure of the internal combustion engine that does not require additional hydraulic piping can be realized. This internal combustion engine is excellent in terms of a compact structure and a small weight per unit output.
図3と4は、本発明に基づく内燃機関27の異なる実施例を示す。これら図に示す実施例の内燃機関27は、ほぼ図1と2の実施例の内燃機関10に相当している。従って、両者における同一構造群についての重複説明を避けるべく、同一構造群に同一符号を付している。図3は、エンジン負荷上限値より大きな負荷運転状態における内燃機関、図4は、エンジン負荷下限値より小さな負荷運転状態における内燃機関を示している。以下、図3と4の内燃機関27が図1と2の内燃機関と異なっている点だけを説明する。
3 and 4 show different embodiments of the
即ち図3と4の実施例では、液圧機械15、17を可変容積形液圧機械として形成し、もって別個に形成した吸込み絞りを省いている。この種可変容積形液圧機械では、それを貫流する容積流量を直接調整できる。かかる可変容積形液圧機械を利用する場合、内燃機関の構造を簡素化し、構造重量を一層減少できる。
That is, in the embodiment of FIGS. 3 and 4, the
10、27 内燃機関、11 エンジン、12 駆動軸、13 排気駆動過給機、14、16 クラッチ、15、17 液圧機械、18 エンジン油槽、19〜23 油管、25、26 吸込み絞り 10, 27 Internal combustion engine, 11 Engine, 12 Drive shaft, 13 Exhaust drive supercharger, 14, 16 Clutch, 15, 17 Hydraulic machine, 18 Engine oil tank, 19-23 Oil pipe, 25, 26 Suction throttle
Claims (5)
a)エンジン(11)がエンジン負荷上限値より大きな負荷で運転されているとき、排気駆動過給機ランナに連結された第1液圧機械(15)が排気駆動過給機ランナから機械的動力を取り出して液圧動力に転換し、この液圧動力が、駆動軸(12)に連結された第2液圧機械(17)によって機械的動力に転換され、駆動軸12に伝達されこれを駆動し、
b)エンジン(11)がエンジン負荷下限値より小さな負荷で運転されているとき、エンジンの駆動軸12に連結された第2液圧機械(17)が駆動軸から機械的動力を取り出して液圧動力に転換し、この液圧動力が、排気駆動過給機ランナに連結された第1液圧機械(15)によって機械的動力に転換されて排気駆動過給機(13)に伝達されてこれを駆動し、
c)排気駆動過給機ランナに連結された第1液圧機械(15)と、駆動軸12に連結された第2液圧機械(17)とが、エンジン油槽(18)を介在しエンジン油回路の油管(19、20、21、22、23、24)を介して接続されている
ことを特徴とする内燃機関。 An engine (11) and an exhaust drive supercharger (13), fuel is burned by the engine (11), the drive shaft (12) of the engine (11) is driven by the power generated by the combustion, An exhaust-driven supercharger (13) expands the exhaust gas stream leaving the engine (11) of the internal combustion engine in the turbine, and the power obtained at that time compresses the combustion air stream to be supplied to the engine The compressor is driven, and an exhaust drive supercharger runner formed by a turbine rotor of the exhaust drive supercharger (13) and a compressor impeller is connected to the first hydraulic machine (15), and the engine (11) In the internal combustion engine in which the drive shaft (12) is connected to the second hydraulic machine (17),
a) When the engine (11) is operated at a load larger than the engine load upper limit value, the first hydraulic machine (15) connected to the exhaust-drive supercharger runner receives mechanical power from the exhaust-drive supercharger runner. The hydraulic power is converted into hydraulic power, and this hydraulic power is converted into mechanical power by the second hydraulic machine (17) connected to the drive shaft (12) and transmitted to the drive shaft 12 to drive it. And
b) When the engine (11) is operated at a load smaller than the engine load lower limit value, the second hydraulic machine (17) connected to the drive shaft 12 of the engine extracts the mechanical power from the drive shaft to This hydraulic power is converted to mechanical power by the first hydraulic machine (15) connected to the exhaust-drive supercharger runner and transmitted to the exhaust-drive supercharger (13). Drive the
c) The first hydraulic machine (15) connected to the exhaust-drive supercharger runner and the second hydraulic machine (17) connected to the drive shaft 12 are provided with engine oil via an engine oil tank (18). An internal combustion engine connected via an oil pipe (19, 20, 21, 22, 23, 24) of a circuit.
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Application Number | Priority Date | Filing Date | Title |
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DE102005026602A DE102005026602B3 (en) | 2005-06-09 | 2005-06-09 | Internal combustion engine, e.g. for motor vehicle, has exhaust gas supercharger connected to first hydraulic machine and engine drive shaft to second hydraulic machine |
DE102005026602.9 | 2005-06-09 |
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JP2006342801A true JP2006342801A (en) | 2006-12-21 |
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KR (1) | KR20060128666A (en) |
CN (1) | CN100585142C (en) |
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CN102400774A (en) * | 2011-11-11 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Sinotruk D12-series engine |
CN103850781B (en) * | 2014-03-28 | 2016-04-13 | 长城汽车股份有限公司 | Pressurized machine |
CN108506094A (en) * | 2017-02-28 | 2018-09-07 | 日立汽车系统(苏州)有限公司 | Gas-turbine unit |
Citations (2)
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JPS62111124A (en) * | 1985-09-14 | 1987-05-22 | エム・ア−・エヌ・−ベ−・ウント・ヴエ−・デイ−ゼル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Supercharging type internal combustion engine |
JPS63200633A (en) * | 1987-02-03 | 1988-08-18 | ドイチエ・トムソン−ブラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Transmission of audio signal |
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JPS62111124A (en) * | 1985-09-14 | 1987-05-22 | エム・ア−・エヌ・−ベ−・ウント・ヴエ−・デイ−ゼル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Supercharging type internal combustion engine |
JPS63200633A (en) * | 1987-02-03 | 1988-08-18 | ドイチエ・トムソン−ブラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Transmission of audio signal |
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KR20060128666A (en) | 2006-12-14 |
DE102005026602B3 (en) | 2006-11-30 |
FI20060559A (en) | 2006-12-10 |
FI20060559A0 (en) | 2006-06-07 |
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