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Dual fuel engine and method for operating a dual fuel engine

A dual-fuel engine and fuel technology, which is applied to combustion engines, internal combustion piston engines, and adding non-fuel substances to fuels, can solve problems such as the complex structure of dual-fuel engines, achieve cost-effective manufacturing and reduce complexity.

Active Publication Date: 2022-03-18
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires a complex construction of the dual fuel engine

Method used

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  • Dual fuel engine and method for operating a dual fuel engine
  • Dual fuel engine and method for operating a dual fuel engine

Examples

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Embodiment Construction

[0015] figure 2 Shown are components of a dual fuel engine 23 according to the invention, wherein figure 1 Cylinder 2 of such a dual fuel engine 23 is shown.

[0016] figure 1 The illustrated cylinder 2 includes a cylinder head 3 . In the cylinder head 3 a piston 4 can move up and down, wherein the piston 4 is guided by a connecting rod 5 .

[0017] Cylinder 2 includes a combustion chamber 9 . In the liquid fuel mode of the dual-fuel engine 23, the liquid fuel enters the combustion chamber 9 of the cylinder 2, that is, by means of figure 2 A fuel supply 24 is shown, which is a common rail fuel supply. The common rail fuel supply 24 comprises for each cylinder 2 of the dual fuel engine 23 at least one fuel injector 28 through which liquid fuel can enter the combustion chamber 9 of the corresponding cylinder 2 in the liquid fuel mode . Further, it is shown that the plurality of fuel pumps 25a, 25b and 25c of the common rail fuel supply device 24 are implemented as high ...

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PUM

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Abstract

A dual fuel engine (23) comprising a plurality of cylinders (2), wherein in a liquid fuel operating mode of said dual fuel engine (23), liquid fuel can be supplied by means of a plurality of fuel pumps (25a, 25b, 25c) The fuel supply device (24) supplies to the combustion chamber (9) of the cylinder (2) to burn the liquid fuel, and wherein in the gaseous fuel operation mode of the dual-fuel engine, all of the cylinders (2) Said combustion chamber (9) may on the one hand be supplied with gaseous fuel for burning said gaseous fuel, and on the other hand may be supplied with ignition fluid for igniting said gaseous fuel, wherein all The fuel supply device (24) supplies the combustion chamber (9) of the cylinder (2) in the way that the fuel pump (25a, 25b, 25c) alternately delivers ignition fluid in the gaseous fuel operation mode of the dual-fuel engine (23) ignition fluid.

Description

technical field [0001] The present invention relates to dual fuel engines. The invention also relates to a method for operating a dual fuel engine. Background technique [0002] Dual-fuel engines are known from practice, in which a liquid fuel (such as diesel) can be combusted on the one hand and a gaseous fuel (such as natural gas) can be combusted on the other hand. In the gas mode of a dual-fuel engine, a lean gas-air mixture is generally introduced into cylinders of the engine and ignited by the ignition energy of an ignition fluid also introduced into these cylinders. [0003] figure 1 Shown are components of a dual-fuel engine 1 known from the prior art, wherein figure 1 A cylinder 2 of such a dual fuel engine 1 is shown. The cylinder 2 includes a cylinder head 3 . In the cylinder, the piston 4 guided by the connecting rod 5 moves up and down. In said cylinder head, a fuel injector 6 is fixed, by means of which liquid fuel, in particular diesel fuel, can be injec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D19/06F02B69/04F02M37/04
CPCF02B69/04F02D19/0613F02D19/0642F02D19/0684F02M37/04F02D19/0602F02D19/06F02D19/0647F02M37/0064F02M21/04Y02T10/30F02M25/00
Inventor L.迈尔J.弗洛卡G.瓦泽曼
Owner MAN ENERGY SOLUTIONS SA