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internal combustion engine system

An internal combustion engine and internal combustion engine technology, which is applied to internal combustion piston engines, combustion engines, mechanical equipment, etc., can solve problems such as non-compliance with NOx emission reduction

Active Publication Date: 2016-06-22
曼柴油机和涡轮机公司-德国曼柴油机和涡轮机欧洲股份公司之分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The program does not meet the NO x Emissions are reduced to a new target of 3.4g / kWh, so a solution is needed to meet the target while warming up the engine

Method used

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  • internal combustion engine system
  • internal combustion engine system
  • internal combustion engine system

Examples

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Embodiment Construction

[0108] figure 1 Shown is an internal combustion engine system 1 comprising an internal combustion engine 2 having cylinders having a piston diameter of at least 20 cm, said engine being powered by a fuel having a sulfur content of at least 0.05% and producing a fuel having a NO x concentration of exhaust gas. Therefore, the system includes NO x Restore unit 7. The system also includes a turbocharger 3 with a turbine 4 and a compressor 6 connected to the turbine by a shaft 5 . Turbine 4 is driven by exhaust gas from internal combustion engine 2 and drives compressor 6 to compress scavenging air supplied to engine 2 .

[0109] When the engine 2 of the internal combustion engine system 1 is started, all parts of the system are cooler than when the engine has been running for some time. During this start-up, when the exhaust gas is at NO x When being processed in the reduction unit 7, the gas is cooled because the NO x The reduction unit 7 is also not sufficiently heated. T...

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PUM

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Abstract

The invention relates to an internal combustion engine system comprising: an internal combustion engine having a cylinder with a piston diameter of at least 20 cm, said engine producing exhaust gases; a turbocharger having a turbine connected to the shaft and a compressor connected to the shaft, The turbine is driven by exhaust gas from the internal combustion engine; a NOx reduction unit for purifying exhaust gas from the internal combustion engine, the NOx reduction unit includes a catalytic reactor, wherein the engine system further includes a drive for driving the shaft to compress An electrically and / or hydraulically powered motor that provides auxiliary power to the machine. The invention also relates to a NOx reduction method for optimizing the reduction of NOx emissions from an internal combustion engine system according to the invention.

Description

technical field [0001] The present invention relates to a kind of internal combustion engine (combustion engine, combustionengine) system and a kind of for the NO from internal combustion engine system x The reduction of emissions is optimized for NO x restore method. Background technique [0002] Ships with marine internal combustion engines are subject to the NO specified by the International Maritime Organization (IMO) x emission limits. The latest proposal for the TierIII regulation sets that when the ship is within a certain distance from the shore of the emission control area, NO x Emissions are reduced to a target of 3.4g / kWh. In particular, when at sea, the ship's engines are cold, and therefore, lower NO x There is a finite amount of energy in the form of heat required for concentration. Later in the voyage, the engine is heated up and heat is no longer a limited resource. Therefore, NO x Reduction varies during a trip from one port to the next. [0003] NO...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/10F02B37/14F01N3/20
CPCY02T10/12
Inventor M·法姆M·韦尔戈德-劳尔森
Owner 曼柴油机和涡轮机公司-德国曼柴油机和涡轮机欧洲股份公司之分公司