Air assisting atomization oil sprayer and control method

Abstract

The invention relates to an air assisting atomization oil sprayer and a control method. An oil conveying pipe is arranged in one side of an oil sprayer pillar body of the oil sprayer. One end of the oil conveying pipe is connected with a fuel channel, and the other end of the oil conveying pipe communicates with an oil cavity in the bottom of a plunger. The other side of the oil sprayer pillar body is provided with an auxiliary air channel. One end of the auxiliary air channel is connected with a gas conveying pipe, and the other end of the auxiliary air channel communicates with the oil sprayer pillar body and a rectifying shell composed of a rectifying cover. The oil sprayer leads gas from the rear portion of an intercooler, an electromagnetic switch valve is arranged in the middle of agas conveying pipeline, and the connecting manner of the electromagnetic valve and an ECU and the connecting manner of electromagnetic valves controlling oil spraying of the oil sprayer are the same.When the oil sprayer receives an ECU signal and oil spraying is started at the terminal stage of the suction stroke, the electromagnetic valves in a gas channel are opened at the same time, supercharged gas is sprayed into the rectifying shell of the oil sprayer from the auxiliary air channel shown in the graph, high-pressure gas passes through a collector ring, a turbulent flow ring and a one-wayvalve and encounters with sprayed gasoline for conducting auxiliary atomization, the atomization quality is improved, and the atomization characteristic of the oil sprayer is optimized.

Description

technical field [0001] The invention relates to an air-assisted atomizing fuel injector and a control method, in particular to a fuel injector and a control method which introduce high-pressure gas from the intercooler of a supercharged engine and pass through a rectifying device for auxiliary atomization. Background technique [0002] With the energy crisis and environmental problems, direct injection engine has become an application trend in the field of engine research and development due to its significant advantages in reducing fuel consumption and pollution, and improving engine performance. It overcomes the shortcomings of the port engine's mixed gas formation process that is not ideal, which affects the engine's power and economy. It organizes combustion by directly injecting fuel into the cylinder to form a mixed gas, making the formation of the mixed gas more flexible. [0003] Because the fuel spray of the direct injection engine is easy to collide with the cylind...

AI Technical Summary

Problems solved by technology

However, setting the mixing chamber inside the injector has completely changed the structure of the traditional injector and increased the manufacturing cost

Moreover, because the low fuel injection pressure will be affected by the environmental back pressure, the spray pattern will not be particularly stable, which is not suitable for mass production

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