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Adjusting method of ethanol-gasoline dual fuel injector with adjustable ratio

A fuel injector and dual-fuel technology, applied in the direction of fuel injection control, fuel injection device, charging system, etc., can solve the problems of easy formation of air lock in the fuel supply system, difficulty in starting the engine at low temperature, etc. Fuel supply forms air resistance, improves power performance, and has the effect of large latent heat of vaporization

Inactive Publication Date: 2018-06-08
HUNAN CITY UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the difficulties in starting the engine at low temperature when the ethanol-gasoline has been mixed in the prior art, the fuel supply system is easy to form air resistance, and the engine needs technologies such as high torque and high power under certain working conditions Problem, the present invention provides a ratio adjustable ethanol-gasoline dual fuel injector device and control strategy

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  • Adjusting method of ethanol-gasoline dual fuel injector with adjustable ratio
  • Adjusting method of ethanol-gasoline dual fuel injector with adjustable ratio
  • Adjusting method of ethanol-gasoline dual fuel injector with adjustable ratio

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the technical solution of the present application, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032]The orientation terms such as up, down, left, right, front and rear in this application document are established based on the positional relationship shown in the drawings. If the drawings are different, the corresponding positional relationship may also change accordingly, so this should not be understood as limiting the scope of protection.

[0033] In the description of the present invention, it should be understood that the meaning of "plurality" refers to two or more, unless otherwise specifically defined.

[0034] In the present invention, the terms "installation", "connection", "connection", "connection", "fixation" and so on should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, o...

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Abstract

The invention relates to an adjusting method of an ethanol-gasoline dual fuel injector with adjustable ratio. The method specifically comprises the steps that step 1, the operating condition of an engine is determined according to an electronic accelerograph signal of the engine and a rotation speed signal of the engine, and the ethanol volume needed is determined; step 2, according to the determined working condition of the engine and the ethanol volume needed in step 1, moving direction of an ethanol injection piston (11) is controlled, and the ethanol injection piston moves in the up-and-down direction along a push rod chamber of the ethanol injection piston (4-1); step 3, after the moving direction of the ethanol injection piston (11) is determined according to step 2, the precise position of the ethanol injection piston (11) in an ethanol injection piston chamber (33) is controlled, so that target ethanol volume is achieved. According to the method, accurate injection and accuratecontrol of ethanol-gasoline ratio of the dual fuel injector are achieved.

Description

technical field [0001] The invention relates to an engine injection technology, in particular to an adjustable-ratio ethanol-gasoline dual-fuel injector. Background technique [0002] With the aggravation of energy crisis and environmental pollution, traditional gasoline combustion will produce a large amount of nitrogen oxides, carbon monoxide and hydrocarbon pollutants, and adding ethanol to gasoline can greatly improve engine combustion and emission performance. Ethanol gasoline has The following advantages: First, reduce emissions. The oxygen content of ethanol gasoline for vehicles can reach 35%, which makes the fuel burn more fully. According to relevant departments, for adding a certain proportion of ethanol to gasoline, the results of the engine bench test and driving test show that, Using ethanol gasoline for vehicles, under the premise of no engine modification, the power performance is basically unchanged, and the CO and HC compounds in the tail gas are reduced by...

Claims

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Application Information

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IPC IPC(8): F02D19/08F02D41/00F02M43/04
CPCF02D19/081F02D41/0025F02D2200/101F02D2250/36F02M43/04
Inventor 李稳国
Owner HUNAN CITY UNIV
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