Internal combustion engine, exhaust gas recirculation device and method for exhaust gas recirculation
A technology of exhaust gas recirculation and internal combustion engine, which is applied in the direction of exhaust gas recirculation, exhaust device, internal combustion piston engine, etc., and can solve the problem that exhaust gas recirculation cannot be used.
Inactive Publication Date: 2017-09-15
MAN ENERGY SOLUTIONS SE
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Problems solved by technology
As a result, exhaust gas recirculation has hitherto not been possible with internal combustion engines operating on heavy fuel oil
Method used
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Embodiment Construction
[0041] The invention here relates to an internal combustion engine, in particular a marine diesel internal combustion engine, which is operated on heavy fuel oil.
[0042] figure 1 A schematic representation of a first exemplary embodiment of an internal combustion engine 10 operating on heavy fuel oil according to the invention is shown, wherein the internal combustion engine 10 comprises an engine 11 with a plurality of cylinders 12 . Heavy oil is combusted as fuel in cylinders 12 of internal combustion engine 10 , for which purpose compressed charge air 13 is supplied to cylinders 12 of internal combustion engine 10 in addition to the heavy oil. Exhaust gas 14 produced during the combustion of heavy oil is led away from cylinders 12 of internal combustion engine 10 .
[0043] exist figure 1 The internal combustion engine 10 shown in has a charging device 15 which, in the exemplary embodiment shown, includes two turbochargers 16 and 17 . The first turbocharger 16 is desig...
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The invention relates to an internal combustion engine, ie an internal combustion engine operating on heavy fuel oil, with an engine having a plurality of cylinders and with a charging device having at least one turbocharger, an exhaust gas recirculation device and a method for exhaust gas recirculation , wherein the exhaust gas leaving the cylinders and which can be supplied to the charging device can branch off upstream of the charging device by means of an exhaust gas recirculation device comprising at least one exhaust gas recirculation cooler and can be mixed with compressed charge air after cooling, And wherein at least one additive can be introduced into the exhaust gas conducted through the exhaust gas recirculation device upstream of the exhaust gas recirculation cooler (which cools the exhaust gas conducted through the exhaust gas recirculation device to below the dew point temperature of the sulfur-containing acid) , the additive binds the sulfur oxides of the exhaust gas and / or neutralizes the sulfur-containing acids produced when cooling the exhaust gas.
Description
technical field [0001] The invention relates to an internal combustion engine. Furthermore, the invention relates to an exhaust gas recirculation device for an internal combustion engine and a method for exhaust gas recirculation on an internal combustion engine. Background technique [0002] In internal combustion engines operating on heavy fuel oil, it is a feature that the fuel used (ie heavy fuel oil) has a relatively high sulfur content. Sulfur oxides can react with other components of the exhaust gas and lead to deposits on components of the internal combustion engine, such as the exhaust gas purification system of the internal combustion engine. [0003] DE 10 2004 027 593 A1 discloses an internal combustion engine with a supercharging device and an exhaust gas cleaning device. The charging device is designed as a single-stage or as a two-stage charging device. The exhaust gas purification device comprises at least one SCR catalytic converter, which is positioned d...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F02M26/36F02M26/05F02M26/24F01N3/20F01N3/08
CPCF02B37/004F02B37/013F02M26/06Y02T10/12F01N3/10F02M25/00
Inventor P.托舍夫S.施吕特
Owner MAN ENERGY SOLUTIONS SE