JP2009526169A5 - - Google Patents

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JP2009526169A5
JP2009526169A5 JP2009515727A JP2009515727A JP2009526169A5 JP 2009526169 A5 JP2009526169 A5 JP 2009526169A5 JP 2009515727 A JP2009515727 A JP 2009515727A JP 2009515727 A JP2009515727 A JP 2009515727A JP 2009526169 A5 JP2009526169 A5 JP 2009526169A5
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Prior art keywords
fuel
rail
engine
common
common rail
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JP2009515727A
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JP2009526169A (en
JP4669066B2 (en
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Priority claimed from PCT/EP2007/004723 external-priority patent/WO2008145151A1/en
Publication of JP2009526169A publication Critical patent/JP2009526169A/en
Publication of JP2009526169A5 publication Critical patent/JP2009526169A5/ja
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Claims (15)

クロスヘッド型大型２サイクルディーゼルエンジンであって、
少なくとも第１の燃料噴射弁および第２の燃料噴射弁がそれぞれ設けられる複数のシリンダーと、
高圧燃料源と、
少なくとも第１の燃料コモンレールおよび第２の燃料コモンレールと、
を備え、
前記第１の燃料コモンレールおよび前記第２の燃料コモンレールは相互に連結されずに、前記高圧燃料源に連結され、
前記第１の燃料噴射弁は前記第１の燃料コモンレールに連結され、前記第２の燃料噴射弁は前記第２の燃料コモンレールに連結される、
エンジン。 A crosshead type large two-cycle diesel engine,
A plurality of cylinders each provided with at least a first fuel injection valve and a second fuel injection valve;
A high pressure fuel source;
At least a first fuel common rail and a second fuel common rail;
With
The first fuel common rail and the second fuel common rail are connected to the high-pressure fuel source without being connected to each other;
The first fuel injection valve is connected to the first fuel common rail, and the second fuel injection valve is connected to the second fuel common rail;
engine. 前記シリンダーには、第３の燃料噴射弁がそれぞれ設けられ、前記第３の燃料噴射弁は、前記第１の燃料コモンレール、前記第２の燃料コモンレール、またはその他の燃料レールに連結されてない第３の燃料コモンレールに連結される、請求項１に記載のエンジン。   Each of the cylinders is provided with a third fuel injection valve, and the third fuel injection valve is not connected to the first fuel common rail, the second fuel common rail, or another fuel rail. The engine according to claim 1, wherein the engine is connected to three fuel common rails. 前記高圧燃料源は、高圧ポンプステーションまたは１つ以上の高圧燃料ポンプを備える、請求項１または２に記載のエンジン。   The engine according to claim 1 or 2, wherein the high-pressure fuel source comprises a high-pressure pump station or one or more high-pressure fuel pumps. 前記コモンレールの各々は、専用高圧燃料ポンプまたは専用高圧ポンプステーションに連結される、請求項１から３のいずれかに記載のエンジン。   The engine according to any one of claims 1 to 3, wherein each of the common rails is connected to a dedicated high-pressure fuel pump or a dedicated high-pressure pump station. 前記第１の燃料コモンレールおよび前記第２の燃料コモンレールは、異なる圧力レベルで動作せしめられる、請求項４に記載のエンジン。 Said first common fuel rail and the second fuel rail is caused to operate at different pressure levels, the engine according to claim 4. 前記第１および第２の燃料コモンレールを異なる圧力で動作せしめることに起因する熱負荷の変化を補うように、燃焼室構成要素を冷却するように構成される、請求項５に記載のエンジン。 Wherein to compensate for changes in the heat load of the first and second common fuel rail caused by allowed to operate at different pressures, it is configured to cool the combustion chamber components, engine according to claim 5. エンジン停止中に、前記燃料噴射システムの燃料の温度を維持し、かつ脱気状態に維持するための燃料再循環システムをさらに備える、請求項１から６のいずれかに記載のエンジン。 During the engine stop, the maintaining the temperature of the fuel in the fuel injection system, and further comprising a fuel recirculation system for maintaining the degassing conditions, the engine according to any one of claims 1 to 6. 前記燃料再循環システムは、エンジン停止中に、前記燃料コモンレールおよび前記燃料噴射器を介した再循環を確実にする、請求項７に記載のエンジン。   The engine of claim 7, wherein the fuel recirculation system ensures recirculation through the fuel common rail and the fuel injector during engine shutdown. 前記第１及び前記第２の一方の燃料コモンレールにおいて圧力が低下すると、前記第１及び前記第２の他方の燃料コモンレールおよび該他方の燃料コモンレールに関連する前記燃料噴射弁によって動作するように構成される、請求項１から８のいずれかに記載のエンジン。  The first fuel common rail and the second fuel common rail are configured to be operated by the first and second fuel common rails and the fuel injection valve associated with the other fuel common rail when the pressure is reduced in the first and second fuel common rails. The engine according to any one of claims 1 to 8. 低負荷状態中は、前記第１及び前記第２の燃料コモンレールのいずれかの燃料のみで動作するように構成される、請求項１から９のいずれかに記載のエンジン。  The engine according to any one of claims 1 to 9, wherein the engine is configured to operate with only one of the fuels of the first and second fuel common rails during a low load state. 大型２サイクルディーゼルエンジンの動作方法であって、
前記エンジンは、
各シリンダーに２つ以上の燃料噴射弁が設けられる複数のシリンダーと、
第２の燃料コモンレールには連結されない第１の燃料コモンレールを備えるコモンレール燃料噴射システムと、
を備え、前記シリンダーの各々において、前記燃料噴射弁のうちの少なくとも１つが前記第１の燃料コモンレールに連結されると共に、前記燃料噴射弁のうちの少なくとも１つは前記第２の燃料コモンレールに連結されており、
前記第１及び前記第２の一方の燃料コモンレールにおいて圧力が低下すると、前記第１及び前記第２の他方の燃料コモンレールおよび該他方の燃料コモンレールに関連する前記燃料噴射弁によって前記エンジンを動作せしめる、
方法。 A method of operating a large two-cycle diesel engine,
The engine is
A plurality of cylinders each having two or more fuel injection valves;
A common rail fuel injection system comprising a first fuel common rail not connected to the second fuel common rail;
The provided, in each of said cylinders, at least one of said fuel injection valve is connected to the first fuel rail Rutotomoni, at least one second common fuel rail of the fuel injection valve Are connected,
When the pressure drops have you to the first and the second one of the fuel common rail, operating said engine by said first and said second other common fuel rail and said other said fuel injection valve associated with the fuel rail of Squeeze,
Method. 前記第１の燃料コモンレールおよび前記第２の燃料コモンレールを異なる圧力レベルで動作させることをさらに含む、請求項１１に記載の方法。 The method of claim 11 , further comprising operating the first fuel common rail and the second fuel common rail at different pressure levels. 前記第１および第２の燃料コモンレールの圧力レベルは前記エンジンの燃料消費を減少させる目的で選択される、請求項１２に記載の方法。 Pressure level of the first and second fuel common rail is selected for the purpose of reducing the fuel consumption of the engine The method of claim 12. 前記第１および第２の燃料コモンレールの圧力レベルは前記エンジンの排ガスを減少させる目的で選択される、請求項１１から１３のいずれかに記載の方法。 14. A method according to any of claims 11 to 13, wherein the pressure levels of the first and second fuel common rails are selected for the purpose of reducing the engine exhaust. 大型２サイクルディーゼルエンジンの動作方法であって、
前記エンジンは、
各シリンダーに２つ以上の燃料噴射弁が設けられる複数のシリンダーと、
第２の燃料コモンレールには連結されない第１の燃料コモンレールを備えるコモンレール燃料噴射システムと、
を備え、前記シリンダーの各々において、前記燃料噴射弁のうちの少なくとも１つが前記第１の燃料コモンレールに連結されると共に、前記燃料噴射弁のうちの少なくとも１つは前記第２の燃料コモンレールに連結されており、
前記エンジンが、低負荷状態中は、前記第１及び前記第２の燃料コモンレールのいずれかの燃料のみで動作せしめられる、
方法。 A method of operating a large two-stroke diesel engine,
The engine is
A plurality of cylinders each having two or more fuel injection valves;
A common rail fuel injection system comprising a first fuel common rail not connected to the second fuel common rail;
The provided, in each of said cylinders, at least one of said fuel injection valve is connected to the first fuel rail Rutotomoni, at least one second common fuel rail of the fuel injection valve Are connected,
The engine is in a low load condition, is caused to operate only in one of the fuel of the first and the second fuel rail,
Method.
JP2009515727A 2007-05-29 2007-05-29 Fuel injection system for large two-cycle diesel engines Expired - Fee Related JP4669066B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/004723 WO2008145151A1 (en) 2007-05-29 2007-05-29 Fuel injection system for large two-stroke diesel engine

Publications (3)

Publication Number Publication Date
JP2009526169A JP2009526169A (en) 2009-07-16
JP2009526169A5 true JP2009526169A5 (en) 2010-05-06
JP4669066B2 JP4669066B2 (en) 2011-04-13

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JP (1) JP4669066B2 (en)
KR (1) KR101073634B1 (en)
CN (1) CN101449051B (en)
WO (1) WO2008145151A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5395848B2 (en) * 2011-06-24 2014-01-22 三井造船株式会社 Low speed 2-cycle gas engine
JP5820185B2 (en) * 2011-08-12 2015-11-24 株式会社Ihi 2-cycle engine
KR101819698B1 (en) * 2013-12-24 2018-01-17 가부시키가이샤 아이에이치아이 Uniflow scavenging 2-cycle engine
DK179161B1 (en) * 2016-05-26 2017-12-18 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A large two-stroke compression-ignited internal combustion engine with fuel injection system for low flashpoint fuel and a fuel valve therefore
CN113123890A (en) * 2021-05-07 2021-07-16 华中科技大学 double-ECU high-pressure common rail fuel control system and method for highly-intensified diesel engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651151B1 (en) * 1993-10-29 1998-09-16 Wärtsilä NSD Schweiz AG Internal combustion Diesel engine
JP3827102B2 (en) * 1996-06-10 2006-09-27 株式会社新エィシーイー Fuel injection control method for diesel engine
JPH10184487A (en) * 1996-12-25 1998-07-14 Isuzu Motors Ltd Fuel injection device for diesel engine
DE60004294T2 (en) * 1999-06-18 2004-06-09 Mitsubishi Fuso Truck And Bus Corp. Fuel injector
EP1143140B1 (en) * 2000-03-01 2004-04-14 Wärtsilä Schweiz AG Arrangement of common rail system
JP4225240B2 (en) * 2004-04-28 2009-02-18 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
JP4453524B2 (en) * 2004-11-11 2010-04-21 トヨタ自動車株式会社 Control device for internal combustion engine
JP4466340B2 (en) * 2004-11-18 2010-05-26 トヨタ自動車株式会社 Fuel supply device
US7398763B2 (en) * 2005-11-09 2008-07-15 Caterpillar Inc. Multi-source fuel system for variable pressure injection

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