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Dual-fuel injector

An injector and dual-fuel technology, applied to fuel injection devices, charging systems, machines/engines, etc., can solve problems such as poor reliability, difficult layout, and complex structure, and achieve strong control reliability, small structural changes, and structural simple effect

Inactive Publication Date: 2020-03-24
FAW JIEFANG AUTOMOTIVE CO
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Problems solved by technology

In the prior art, some dual-fuel injectors are designed separately and are actually a single fuel ignited by diesel oil, which greatly changes the structure of the engine cylinder head and combustion chamber; other integrated dual-fuel injectors have complex structures and difficult layout , and diesel oil is used to control the shut-off of natural gas, the two affect each other, and the reliability is poor

Method used

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0027] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordin...

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Abstract

The invention relates to the technical field of automobile internal combustion engines, in particular to a dual-fuel injector, which comprises a fuel injector body, a fuel control assembly, a fuel gascontrol assembly and a nozzle assembly, wherein a fuel channel and a gas channel are formed in the fuel injector body in the length direction; the fuel control assembly is arranged on the fuel injector body and is used for controlling on-off of the fuel channel; the fuel gas control assembly is arranged on the fuel injector body and used for controlling on-off of the gas channel; and the nozzle assembly is arranged at the tail end of the fuel injector body and used for spraying out fuel oil and fuel gas. The fuel channel and the gas channel are formed in the fuel injector body, the fuel control assembly and the fuel gas control assembly are arranged, the structure is simple, the structure of an engine cylinder cover and the structure of a combustion chamber are slightly changed, the fuelcontrol assembly and the fuel gas control assembly are arranged respectively, fuel and fuel gas are independently controlled, and control reliability is high.

Description

technical field [0001] The invention relates to the technical field of automobile internal combustion engines, in particular to a dual fuel injector. Background technique [0002] With the development of the automobile industry, more and more automobiles have entered production and life, and the machine has greatly facilitated people's lives. Most cars today use single-fuel internal combustion engines. A single fuel injection device is commonly used in internal combustion engines. In the prior art, some dual-fuel injectors are designed separately and are actually a single fuel ignited by diesel oil, which greatly changes the structure of the engine cylinder head and combustion chamber; other integrated dual-fuel injectors have complex structures and difficult layout , and diesel oil is used to control the shut-off of natural gas, the two affect each other, and the reliability is poor. [0003] Therefore, there is an urgent need for a dual fuel injector to solve the above ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M43/04F02M61/10F02M61/18
CPCF02M43/04F02M61/10F02M61/18
Inventor 张礼林高广新杨翔宇汪祥本朱明健张勇朱君亮张建刚黄成海宋国民
Owner FAW JIEFANG AUTOMOTIVE CO
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