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Anti-reversed integrated cross circular-groove gas fuel spraying and mixing device

A gas fuel, injection mixing technology, applied in the direction of fuel supply device, charging system, combustion engine, etc., can solve the problem of reverse leakage of the injection valve, and achieve the goal of increasing the intake air volume, increasing the flow area, and increasing the flow coefficient. Effect

Active Publication Date: 2017-08-22
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the case of bad engine conditions, the injection valve is prone to reverse leakage, so it is necessary to design an injection valve that can prevent reverse leakage

Method used

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  • Anti-reversed integrated cross circular-groove gas fuel spraying and mixing device
  • Anti-reversed integrated cross circular-groove gas fuel spraying and mixing device
  • Anti-reversed integrated cross circular-groove gas fuel spraying and mixing device

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Embodiment Construction

[0020] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0021] combine Figure 1-7 , an anti-reverse integrated cross-ring groove gas fuel injection mixing device in the present invention is divided into a fuel injection valve 1, a connecting gas cover 2 and a fuel diffusion pipe 3. The fuel injection valve is mainly composed of four parts: a valve body 4, an electromagnet 5, a valve core assembly 6, and a floating valve seat 7. The electromagnet 5 is connected with the valve body 4 through the upper screw thread. The electromagnet 5 is mainly composed of an iron core 8 and a coil 9. Both sides of the iron core 8 are provided with annular grooves for arranging a return spring 10 . A valve core assembly 6 is arranged below the electromagnet. Below the valve core assembly 6 is a floating valve seat 7 structure. The floating valve seat 7 and the valve body 4 are not fixed with screws, and the connection between the two i...

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Abstract

The purpose of the invention is to provide an anti-reversed integrated cross circular-groove gas fuel spraying and mixing device. Gas fuel is conveyed to the system through a pipeline, firstly a fuel spraying valve is passed, and an actuator controls the opening and the closing of a valve by controlling a valve element; mass flow is achieved through a mixed air-incoming mode of axial main air drain direct air-incoming and circumferential air-supplying hole air-incoming, and the air-supplying efficiency of an engine is effectively improved; surface sealing of a fuel gas spraying valve is achieved through a multichannel zone structure between the valve element and a valve seat, and the high reliability is achieved; through a floating valve seat structure, the function that reverse leakage caused by imbalance of internal and external pressure of the fuel gas spraying valve is avoided is achieved, and the working reliability of the fuel gas spraying valve is ensured; through a fuel diffusing pipe cavity structure, the fuel can be distributed in the whole system, and the continuity and the responsiveness of air-supplying of an air-supplying system are achieved; and through a circular groove structure, the improvement of the mixing degree of the fuel and air is promoted, the circular groove structure is beneficial to combustion, and the working performance of the system is improved.

Description

technical field [0001] The invention relates to an air intake system, in particular to an air intake system of a gas fuel engine. Background technique [0002] In today's world, the ever-increasing emission standards and the increasingly severe energy crisis pose new challenges to fuel engines. New gas fuels, mainly represented by natural gas, have become the focus of researchers in various countries, and gas fuel engines have also become the most important. research object. A complete air intake system, including fuel injection valves, intake manifolds, cylinder valves and many other parts, every part through which fuel and air flow will have an important impact on the performance of a gas fuel engine. For the injection of gaseous fuel, it is required to have a large injection flow rate, high injection efficiency, stable injection, and good response; and for the flow of gaseous fuel and air, it is necessary to allow the gaseous fuel and air to fully flow before entering th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02F02M21/04
CPCF02M21/0248F02M21/0254F02M21/026F02M21/0278F02M21/042Y02T10/30
Inventor 范立云宋恩哲董全杨立平姚崇
Owner HARBIN ENG UNIV
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