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Novel dual-fuel injector

An injector and dual-fuel technology, applied in fuel injection devices, charging systems, machines/engines, etc., can solve the problems of dual-fuel internal combustion engine system calibration and large-scale promotion, limited control accuracy, and poor product consistency. The effect of simple structure, fast response and cost reduction

Pending Publication Date: 2019-01-04
英嘉动力科技无锡有限公司 +1
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AI Technical Summary

Problems solved by technology

However, although the existing dual-fuel injectors can realize the injection of two fuels, their response speed is insufficient and the control accuracy is limited. At the same time, because of the cumbersome structure, the consistency of the product is poor and the cost is high. It is a dual-fuel internal combustion engine system. Calibration and large-scale promotion bring difficulties

Method used

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Embodiment Construction

[0026] A novel dual-fuel injector 6 of the present invention will be further described below in conjunction with the embodiments.

[0027] attached Figure 1-7 It is a specific embodiment of the present invention. This invention is a novel dual-fuel injector, which includes an injector housing 13, a natural gas solenoid valve 1, a diesel solenoid valve 6 and a valve body 31. The body 31 is connected and fastened. An intermediate body 30 is provided at the connection between the valve body 31 and the injector housing 13. The valve body 31 is provided with a needle valve 33 and an air valve 32. The injector housing 13 is provided with a diesel high pressure valve. Oil inlet 17, natural gas high-pressure air inlet 11 and diesel oil return channel 16, natural gas high-pressure air inlet 11 passes through the internal air passage 24 of the shell and the communicating air passage 25 inside the shell through the intermediate air passage 40 on the intermediate body 30 And the nozzle...

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Abstract

The invention belongs to the technical field of injectors, and particularly relates to a novel dual-fuel injector. The novel dual-fuel injector comprises an injector housing, a natural gas solenoid valve, a diesel solenoid valve and a valve body, the injector housing is provided with the natural gas solenoid valve, the diesel solenoid valve and the valve body, an intermediate body is arranged at the connection between the valve body and the injector housing, the valve body is internally provided with a needle valve and air valves, and the valve body is provided with a diesel injection hole andnatural gas injection holes corresponding to the needle valve and the air valves correspondingly. The novel dual-fuel injector has the beneficial effects that the control flexibility is high, independent control and independent injection of double fuel of diesel and natural gas can be realized, and wide use of the natural gas on medium and heavy-duty vehicles is realized.

Description

technical field [0001] The invention belongs to the technical field of injectors, and in particular relates to a novel dual-fuel injector. Background technique [0002] At present, medium and heavy vehicle engines, marine engines and medium and heavy construction machinery engines on the market mainly use diesel oil and a small part of natural gas as fuel. In order to meet the gradually stricter emission regulations, current internal combustion engines mainly use single diesel as fuel for high-pressure cylinders Internal direct injection technology (high pressure common rail system) or intake manifold injection technology with natural gas as fuel. [0003] The internal combustion engine using diesel as a single fuel adopts the latest high-pressure common rail injection technology, and its combustion efficiency is basically lower than 39%. The tiny particles of diesel fuel injected cannot be completely combusted, and some of them are discharged in the state of particles, resu...

Claims

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Application Information

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IPC IPC(8): F02M43/04F02M51/06
CPCF02M43/04F02M51/061
Inventor 邹文君张建明刘涛刘松雪
Owner 英嘉动力科技无锡有限公司
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