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

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...

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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

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