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A variable frequency fuel injector for an engine

A fuel injector and engine technology, applied in engine components, machines/engines, mechanical equipment, etc., can solve the problems of poor atomization effect of fuel injectors, achieve good gasoline atomization effect, improve fuel atomization effect, increase Effects of Molecular Collision Chances

Active Publication Date: 2017-11-10
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention designs and develops a variable frequency fuel injector for an engine. The purpose is to solve the defect of poor atomization effect of the fuel injector in the prior art. Vigorous movement occurs, making it more likely to be nebulized

Method used

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  • A variable frequency fuel injector for an engine
  • A variable frequency fuel injector for an engine

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0020] like figure 1 As shown, the present invention provides a variable frequency fuel injector for an engine, which includes a pump body 110 and a valve core 120 . Wherein the pump body 110 is set in a hollow shape, so as to form an oil liquid circulation channel inside it. The front end of the fluid circulation channel gradually shrinks along the direction of fluid circulation, forming a conical shape. An oil injection hole 130 is arranged at the front end of the pump body 110 , so that oil is sprayed out from the oil injection hole 130 . The valve core 120 is set in the hollow part of the pump body 110. The front end of the valve core 120 is set in a conical shape. The conical shape of the front end of the valve core 120 can cooperate with the conical shape of the front...

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Abstract

The invention discloses a frequency conversion fuel injection nozzle for an engine, which comprises a pump body, the pump body is hollow to form an oil circulation channel inside, an oil injection hole is arranged at the front end of the pump body, and the oil injection hole The inner surface is wavy, so that the inner diameter of the oil injection hole changes periodically along the axial direction. The invention provides a frequency conversion fuel injector. The fuel injection hole at the front end of the fuel injector adopts the change of the inner diameter and the friction coefficient of the inner wall surface to increase the Reynolds number of the liquid, so that the internal movement of the liquid is violent, and the probability of molecular collision is increased. , to improve the fuel atomization effect. Therefore, the invention has the advantages of simple structure, high safety and high efficiency, good gasoline atomization effect and low pressure required by the fuel injection system.

Description

technical field [0001] The invention relates to the technical field of automobile engine fuel injectors, in particular to a frequency-variable fuel injector for engines with variable inner diameters and variable friction coefficients of fuel injection holes. Background technique [0002] With the development of the economy, energy shortage and environmental pollution have become worldwide problems. How to further improve the efficiency of internal combustion engines, save fuel, and reduce emissions has become one of the important directions for the development of internal combustion engine technology; today's automotive internal combustion engine technology mostly uses gasoline with low viscosity and fast evaporation. It is characterized by mixing and atomizing it with air to form a combustible mixture and spraying it into the cylinder to make it easier to burn. [0003] Nowadays, the fuel injection holes of vehicle fuel injectors mostly adopt the form of constant inner diam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M61/18
Inventor 王军年李卓王治强刘鹏王岩王庆年
Owner JILIN UNIV
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