Dual-fuel double-oil-supply engine and control method thereof
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A control method and engine technology, applied in engine control, combustion engine, fuel injection control, etc., can solve problems such as poor fuel economy, achieve the effect of reducing dependence on gasoline, shortening fuel injection time, and ensuring an effective way
Inactive Publication Date: 2019-03-01
台州滨海吉利发动机有限公司 +1
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[0004] The purpose of the present invention is to provide a dual fuel dual oil supply engine to solve the technical problem of poor fuel economy of the methanol engine in the prior art
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Embodiment 1
[0049] See figure 1 , figure 2 , a dual fuel dual oil supply engine, comprising a cylinder block 1, a cylinder head 2 is arranged on the top of the cylinder block 1, an intake port 3 communicating with the cylinder block 1 is arranged on the cylinder block 1, and a methanol fuel injection module and The gasoline fuel injection module, the methanol fuel injection module includes a methanol nozzle 5, which is arranged above the cylinder head 2, and is used to inject methanol into the cylinder; the gasoline fuel injection module includes a gasoline nozzle 7, which is arranged on the intake port 3, used to inject gasoline into the intake port 3.
[0050] Therefore, the present invention adopts two different oil supply methods, the methanol nozzle is arranged above the cylinder head, and the methanol is directly injected into the cylinder by the high-pressure direct injection method, which has a higher compression ratio, so that the amount of methanol injection can be larger and ...
Embodiment 2
[0064] There are two or more cylinder blocks 1, and each cylinder block 1 is located on the same straight line. All the other parts are the same as the first embodiment.
[0065] The present invention can also be applicable to multi-cylinder engine, wherein, methanol nozzle is arranged on the methanol injection rail, and the quantity of methanol nozzle is corresponding to the quantity of cylinder head; Gasoline nozzle is arranged on the gasoline injection rail, and the quantity of gasoline nozzle and Corresponding to the number of intake channels. As a result, the actual fuel inside each cylinder is approximately equal, and the balance is good, so the present invention has a stable structure and high control precision.
[0066] Embodiment 1 of the control method of dual-fuel dual-fuel-supply engine:
[0067] See image 3 , Figure 4 , a method for controlling a dual-fuel dual-fuel-supply engine, using the above-mentioned dual-fuel dual-fuel-supply engine, and comprising th...
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Abstract
The invention relates to a dual-fuel double-oil-supply engine, which comprises an air cylinder body. An air cylinder cover is arranged on the air cylinder body, and the air cylinder body is provided with an air inlet channel communicating with the air cylinder body; the dual-fuel double-oil-supply engine further comprises a methyl alcohol oil-spraying module and a gasoline spraying module; the methyl alcohol oil-spraying module comprises a methyl alcohol nozzle, and the methyl alcohol nozzle is arranged above the air cylinder cover and used for spraying a methyl alcohol body to an air cylinder; and the gasoline spraying module comprises a gasoline nozzle, and the gasoline nozzle is arranged at the air inlet channel and used for spraying gasoline to the air inlet channel. According to the dual-fuel double-oil-supply engine, two different oil supplying modes are adopted, the methyl alcohol nozzle is arranged above the air cylinder cover, methyl alcohol is directly sprayed into the air cylinder in a high-pressure direct spraying mode, the gasoline nozzle is arranged on the air inlet channel and sprays the gasoline to the air inlet channel, and the fuel economical efficiency is high. The invention further relates to a control method of the dual-fuel double-oil-supply engine, and the technical problem that in the prior art, the fuel economical efficiency of a methyl alcohol engine is poor is solved.
Description
technical field [0001] The invention relates to the technical field of engines, in particular to a dual-fuel dual-oil supply engine and a control method thereof. Background technique [0002] With the rapid development of my country's economic construction, the demand for energy is also growing rapidly, oil resources are becoming increasingly exhausted, and environmental protection regulations are becoming increasingly stringent. The development of new energy has become a key research topic in our country. As an internationally recognized clean fuel, methanol fuel has the advantages of high octane number, easy combustion, low emission of harmful substances, and improved air quality. Therefore, methanol fuel vehicles came into being. [0003] However, the existing methanol fuel vehicles have a relatively short service life, and the development of methanol engines is not mature enough, which has problems such as difficult cold start, insufficient power, oil dilution, corrosion...
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