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Exhaust gas receiver, internal combustion engine and method for selective catalytic reduction

A technology for exhaust receivers, internal combustion engines, applied in the direction of internal combustion piston engines, combustion engines, machines/engines, etc., capable of solving problems such as adverse effects of catalytic converter functions, achieving size and weight reduction, good mixing, compact SCR The effect of the device

Inactive Publication Date: 2013-10-23
WARTSILA FINLAND OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, if the catalytic converter is placed far from the engine, the low temperature of the exhaust gas may adversely affect the function of the catalytic converter

Method used

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  • Exhaust gas receiver, internal combustion engine and method for selective catalytic reduction
  • Exhaust gas receiver, internal combustion engine and method for selective catalytic reduction
  • Exhaust gas receiver, internal combustion engine and method for selective catalytic reduction

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Embodiment Construction

[0035] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0036] figure 1 An internal combustion engine 14 is shown in , provided with an exhaust receiver 1 for receiving exhaust gases from the engine. The exhaust receiver 1 is arranged on top of the engine 14 such that the longitudinal axis of the exhaust receiver 1 is parallel to the longitudinal axis of the engine 14 . figure 1 The engine 14 is a large two-stroke internal combustion engine comprising seven cylinders arranged in-line. However, the invention is not limited to two-stroke engines or to engines with a certain configuration or number of cylinders, but can also be applied to four-stroke engines and for example to engines in which the cylinders are arranged in a V-shaped configuration. Although the invention is particularly advantageous when used with marine engines, it may also be applied, for example, to engines used in power plants. The eng...

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PUM

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Abstract

An exhaust gas receiver (1) that is connectable to an internal combustion engine (14) for receiving exhaust gases from the engine (14), the exhaust gas receiver (1) comprising a receiver chamber (2), at least one exhaust inlet (3), at least one exhaust outlet (4, 4a, 4b) and a reducing agent duct (5), at least a portion of the reducing agent duct (5) being arranged inside the receiver chamber (2) for heating the reducing agent before the reducing agent is mixed with the exhaust gases. The invention also concerns an internal combustion engine (14) and a method for selective catalytic reduction.

Description

technical field [0001] The invention relates to an exhaust gas receptacle according to the preamble of claim 1 . The invention also relates to an internal combustion engine and a method for selective catalytic reduction of exhaust gases of an internal combustion engine as defined in the preambles of the other independent claims. Background technique [0002] Nitrogen oxides (NOx) from internal combustion engines in ships and power plants X ) emissions are a growing concern and are subject to ever-tightening regulations set by the International Maritime Organization (IMO) and other legislative bodies. To a certain extent, the requirements set by the different regulations can be met by means directly related to the operation of the engine (such as exhaust gas recirculation, high fuel injection pressure in diesel engines, water injection into the intake duct, etc.). However, many engine-related measures for reducing NOx emissions have an adverse effect on fuel efficiency, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/10F01N3/20
CPCF01N2610/08F01N3/10F01N3/2066F01N13/10F01N2590/08F02B37/001Y02T10/24F01N2610/10F01N2590/02F01N2610/14F01N2610/02Y02T10/12F01N3/20
Inventor J·萨丁马克A·苏米恩A·索拉K·维耶斯克
Owner WARTSILA FINLAND OY