Dual-fuel injector

Abstract

The invention relates to an automobile diesel engine injector, in particular to a dual-fuel injector, and belongs to the technical field of automobile diesel engine injectors. The dual-fuel injector comprises a gas nozzle and a gas nozzle screw cap, and the gas nozzle is arranged at the lower end of a fuel nozzle; an outer ring of the gas nozzle is provided with the gas nozzle screw cap; the gas nozzle screw cap is connected with the lower end of a fuel injector body through threads, and the gas nozzle is compressed on the fuel nozzle; the side face of the fuel injector body is provided with an air inlet, and the lower end face of the fuel injector body is provided with a circle of diffusion cell in the circumferential direction; the fuel injector body is internally provided with an air inlet channel which communicates with the air inlet and the diffusion cell; the fuel nozzle is internally provided with a plurality of up-and-down through nozzle airways, and the upper end of each nozzle airway communicates with the diffusion cell; and the lower end of each nozzle airway communicates with an air nozzle. The structure of the dual fuel injector is simple, compact and rational, and thepurpose of reducing emissions can be achieved; diesel can be burnt fully, and the emission of soot is reduced; and the requirements of different customers at different areas can be met according to such conditions as price change, reserve distribution and convenience of fuel and gas.

Description

technical field [0001] The invention relates to an automobile diesel engine injector, specifically a dual-fuel injector, belonging to the technical field of automobile diesel engine injectors. Background technique [0002] In the prior art, a single fuel injection device is commonly used in an internal combustion engine, and there are few injectors that can inject two or more fuels. The injectors capable of realizing two or more fuel injections combine fuel injectors of two separate structures for injection, and are only suitable for low-pressure engines. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages, thereby providing a dual-fuel injector that performs dual-fuel injection without changing the structure of the combustion chamber of the internal combustion engine to reduce engine emissions and meet the requirements of environmental protection. [0004] According to the technical solution provided by the prese...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, a single fuel injection device is commonly used in internal combustion engines, and there are few injectors that can inject two or more fuels

The injectors that can realize two or more fuel injections are combined with two separate fuel injectors for injection, and are only suitable for low-pressure engines.

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