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Method for operating an Otto internal combustion engine

An internal combustion engine, Otto's technology, applied to internal combustion piston engines, combustion engines, mechanical equipment, etc., to achieve good efficiency and avoid knocking

Inactive Publication Date: 2017-09-26
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods are not suitable for use in Otto internal combustion engines, for which the fuel is mixed into the already compressed combustion air only downstream of the compressor

Method used

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  • Method for operating an Otto internal combustion engine
  • Method for operating an Otto internal combustion engine
  • Method for operating an Otto internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 A schematic block diagram of an Otto internal combustion engine, which is designed as a large gas engine and includes cylinders 10 , is shown. A mixture 11 of fuel 12 , ie gas, and combustion air 13 is supplied to the cylinder 10 for combustion of the mixture 11 , wherein the fuel 12 and the combustion air 13 are mixed in a mixer 14 .

[0026] Fuel 12 is mixed into combustion air 13 , which is compressed combustion air 13 compressed by means of an exhaust gas turbocharger 16 . The exhaust gas turbocharger 16 has a compressor 17 in which uncompressed combustion air 18 is compressed into compressed combustion air 13 , wherein the compressor of the exhaust gas turbocharger 16 17 is driven by a turbine 19 of the exhaust gas turbocharger in which exhaust gas 20 of the internal combustion engine is expanded.

[0027] As already mentioned, the fuel 12 is mixed into the compressed combustion air 13 , for which purpose at least one fuel control valve 15 is assigned to...

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Abstract

The method involves determining control signal (23) of an internal combustion engine by a regulation and / or control device (21). The engine is operated in a preset target rotational speed and / or preset target power based on the signal. The signal is provided to another regulation and / or control device (22) by the former device. The latter device generates control signal (24) for an exhaust-gas turbocharger (16) based on the former signal such that a defined mixture (11) of fuel (12) e.g. gas, and combustion air (13) is provided to a cylinder (10) to operate the engine at a preset lambda value. An independent claim is also included for an Otto-internal combustion engine comprising cylinders for combustion of mixture of fuel and combustion air.

Description

technical field [0001] The invention relates to a method for operating an Otto internal combustion engine. Furthermore, the invention relates to an Otto internal combustion engine. Background technique [0002] Otto internal combustion engines designed as large gas engines have a plurality of cylinders for burning a mixture of fuel, ie gas and combustion air. Such large gas engines typically possess an exhaust gas turbocharger comprising a turbine and a compressor in which the hot exhaust gases of the internal combustion engine are expanded for driving the exhaust gas turbocharger compressor and thus serves to compress the combustion air to be supplied to the cylinders of the internal combustion engine. In addition, large gas engines have fuel regulating valves assigned to the cylinders of the internal combustion engine, via which fuel can be mixed with compressed combustion air in order to thus supply the cylinders with fuel and combustion air to be combusted composed mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14F02D19/02
CPCF02B37/24F02D19/024F02D23/00F02D41/0007F02D41/0027F02D41/1454F02D41/2451F02D2041/1418F02M21/0254Y02T10/12Y02T10/30F02D41/00F02D41/14F02D19/02F02D41/02F02D45/00
Inventor R·维谢尔
Owner MAN ENERGY SOLUTIONS SA