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Method of operating an internal combustion engine and internal combustion engine operated by the method

A technology of internal combustion engines and fuels, applied in the direction of internal combustion piston engines, combustion engines, machines/engines, etc., which can solve the problems of limited exhaust gas recirculation

Active Publication Date: 2017-10-13
MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, since EGR increases the formation of particulate matter (PM) or soot and increases the formation of carbon monoxide, this is undesirable and will limit the extent of EGR

Method used

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  • Method of operating an internal combustion engine and internal combustion engine operated by the method
  • Method of operating an internal combustion engine and internal combustion engine operated by the method
  • Method of operating an internal combustion engine and internal combustion engine operated by the method

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Embodiment Construction

[0037] The method according to the invention relates to internal combustion engines of the two-stroke crosshead diesel type, such as those manufactured by MANDiesel & Turbo, for example of type MC or ME, or by An engine manufactured and example type X, RT-fiex or RTA, or an engine manufactured by Mitsubishi Heavy Industries. Such engines are large engines usually used as main engines in ships or as stationary engines in power plants. The cylinders may, for example, have a bore ranging from 25 cm to 120 cm, and the engine may, for example, have a power ranging from 3000 kW to 120,000 kW. This engine is a low speed engine and the engine speed is in the range from 40rpm to 250rpm, or even as high as 300rpm. The method according to the invention also relates to diesel engines of the four-stroke type, for example, engines manufactured by MAN Diesel & Turbo and example types 32 / 44CR, 48 / 60DF, 51 / 60DF, V28-33D, or manufactured by Engines manufactured and example sizes are 20 to 6...

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PUM

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Abstract

An internal combustion engine that uses exhaust gas recirculation. The engine operates some of the time in an environment with a first emission standard and other times in another environment with a second, more stringent emission standard. When operating in said another environment having said second emission standard, the engine is operated on the first fuel or on a second fuel having a second lower calorific value than the first fuel. a low calorific value. The engine is operated with a first degree of exhaust gas recirculation when operating with the first fuel, and with a second, higher degree of exhaust gas recirculation when operating with the second fuel.

Description

technical field [0001] The invention relates to a method of operating an internal combustion engine having a plurality of cylinders with a reciprocating piston inside each cylinder and a combustion chamber above the piston, and at least one fuel injector, the at least One fuel injector injects fuel directly into the combustion chamber above the piston during operation, the internal combustion engine is operated by exhaust gas recirculation, and the internal combustion engine is operated in an environment with a first emission standard limiting the emission of polluting components by exhaust gas sometimes , and the internal combustion engine is operated at other times through the exhaust gas in another environment with a second, more stringent emission standard limiting the emission of these polluting components. Background technique [0002] WO-A-2009 / 046713 discloses a method and a device for controlling a mixed fuel compression ignition engine, whereby the fuel for the eng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D19/06F02D19/12F02D21/08F02D41/02
CPCY02T10/12Y02T10/30F02D19/0602F02D19/0642F02D19/0655F02D41/0025F02D41/0027F02D41/003F02D41/005F02D41/0065F02D41/3011
Inventor 安德斯·安德烈亚森
Owner MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND