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dual fuel injector

一种喷射器、双燃料的技术，应用在燃料喷射装置、装料系统、燃烧发动机等方向，能够解决加工不利、结构空间状况窄小等问题

Active Publication Date: 2018-10-12
L'ORANGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Despite the various variations, the installation space conditions in the nozzle body are always extremely narrow and are therefore unfavorable for the production in terms of the costs to be paid for the production of the nozzle.

Method used

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  • dual fuel injector
  • dual fuel injector
  • dual fuel injector

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] figure 1 A dual-fuel injector 1 according to the invention (dual-fuel nozzle or dual-fuel injection device). The dual fuel injector 1 supplies both a first liquid fuel (in particular diesel fuel, bio-oil or heavy oil) and a second gaseous fuel (combustion gas) for injection operation and has a nozzle body 3 (nozzle element).

[0037] The nozzle needle 5 of the first axial adjustment stroke is accommodated in the nozzle body 3 , ie in the axial bore 7 of the nozzle body 3 . The first nozzle needle 5 provides the injection process with liquid fuel. For operation with liquid fuel, the dual fuel injector 1 also has a high-pressure line 9 , which leads from a liquid fuel inlet 11 on the dual fuel injector 1 to a liquid fuel nozzle chamber 13 in the nozzle body 3 .

[0038] In order to supply the fuel injector 1 with liquid fuel, a high-pressure (HD) supply device 15 can be provided within the scope of the fuel injection installation, for example formed by means of a high-...

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PUM

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Abstract

A dual fuel injector (1) having: - a first axially controllable stroke nozzle needle (5) for spraying liquid fuel through a first nozzle arrangement (21) of the dual fuel injector (1); - A plurality of axially controllable-stroke second nozzle needles (45) arranged around the first nozzle needle (5) for spraying gaseous fuel through the second nozzle arrangement (47) of the dual fuel injector (1); -wherein For each second nozzle needle (45) a control chamber (59) is provided on the injector (1) for its stroke control, which can be loaded and unloaded by a control fluid; wherein - the dual fuel injector (1) also has a ring channel (65) through which the control fluid can be loaded and unloaded; - said dual fuel injector (1) is designed to pass the control fluid from the ring channel (65) in order to control the travel of the second nozzle needle (45) Load and unload the control chamber (59) for the second nozzle needle (45).

Description

technical field [0001] The present invention relates to a dual fuel injector. Background technique [0002] A cylinder head for a piston internal combustion engine is known from DE 35 01 236 C1, wherein the cylinder head has a central injection nozzle and at least two peripheral injection nozzles. [0003] Gaseous fuels are gaining increasing significance in the field of large engines, especially in stationary engines for power generation. Natural gas is particularly suitable for economical and environmentally friendly engine operation due to its very good usability compared to diesel and its more favorable emission potential. Most gas engines operate according to the Otto process, ie have homogeneous combustion and external ignition, where ignition is accomplished either by a glow plug or a diesel ignition injector. However, the process of the Otto engine has a drawback that, during load changes, an undesired leakage of methane occurs due to externally formed mixtures. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D19/06F02D19/10F02M43/04F02M47/04F02M21/02
CPCF02D19/0694F02D19/10F02M21/0263F02M43/04F02M47/046Y02T10/30
Inventor M.卡伦博恩
Owner L'ORANGE GMBH