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1. CN107250515 - Control device of internal-combustion engine, and ship provided with same, and method of operating internal-combustion engine

Office China
Application Number 201580076408.X
Application Date 06.08.2015
Publication Number 107250515
Publication Date 13.10.2017
Grant Number 107250515
Grant Date 15.09.2020
Publication Kind B
IPC
F02D 19/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 13/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
13Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02during engine operation
F02D 15/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
15Varying compression ratio
F02D 23/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
23Controlling engines characterised by their being supercharged
F02D 43/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
43Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging, exhaust-gas treatment
F02D 45/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
45Electrical control not provided for in groups F02D41/-F02D43/98
CPC
F02D 13/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
13Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02during engine operation
F02D 15/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
15Varying compression ratio
F02D 19/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 23/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
23Controlling engines characterised by their being supercharged
F02D 43/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
43Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging, exhaust-gas treatment
F02D 45/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
45Electrical control not provided for in groups F02D41/00 - F02D43/00
Applicants MITSUBISHI HEAVY INDUSTRIES LTD.
三菱重工业株式会社
JAPAN ENGINE CORP.
日本发动机股份有限公司
Inventors ISHIDA HIROYUKI
石田裕幸
MIYANAGI AKIHIRO
三柳晃洋
HIRAOKA NAOHIRO
平冈直大
KOMADA YASUYUKI
驹田耕之
Agents 上海华诚知识产权代理有限公司 31300
Priority Data 2015-039150 27.02.2015 JP
Title
(EN) Control device of internal-combustion engine, and ship provided with same, and method of operating internal-combustion engine
(ZH) 内燃机的控制装置以及具备其的船舶、内燃机的运行方法
Abstract
(EN)
The present invention relates to an internal-combustion engine, and the objective of the invention is to make it possible to suppress NOx emissions, without using an additional device, in marine areas having strengthened exhaust emission regulations, while making it possible to maintain the output of the engine in other marine areas. This control device is provided with: a combustion system selecting means (44) capable of selecting, while an internal-combustion engine is running, at least a fuel gas diffusion combustion system and a fuel gas premixed combustion system; a fuel injection control means (46) which controls fuel injection in such a way as to achieve a fuel injection mode corresponding to the selected combustion system; and an actual compression ratio changing means (48) which changes the actual compression ratio on the basis of the selected combustion system. If the combustion system is switched to the fuel gas premixed combustion system while the internal-combustion engine is running, the actual compression ratio changing means (48) changes the actual compression ratio to a low compression ratio, and if the combustion system is switched to the fuel gas diffusion combustion system while the internal-combustion engine is running, the actual compression ratio changing means (48) changes the actual compression ratio to a high compression ratio.

(ZH)
一种内燃机的控制装置,具备:在内燃机的运行中至少能够选择燃料气体扩散燃烧方式和燃料气体预混合燃烧方式的燃烧方式选择单元(44);燃料喷射控制单元(46),其控制燃料喷射,以使燃料喷射成为与选择的燃烧方式对应的燃料喷射形态;以及实际压缩比改变单元(48),其基于选择的燃烧方式来改变实际压缩比,在内燃机的运行中,若切换为燃料气体预混合燃烧方式,则实际压缩比改变单元(48)将实际压缩比改变为低压缩比,若切换为燃料气体扩散燃烧方式,则实际压缩比改变单元(48)将所述实际压缩比改变为高压缩比。内燃机在排气限制强化海域中,不使用追加装置就能够抑制NOx的排出,并且在其他的海域中,能够确保内燃机的输出。