Wall-guided in-cylinder direct injection gasoline engine combustion chamber

Abstract

The invention relates to a wall-guided in-cylinder direct injection gasoline engine combustion chamber. The wall-guided in-cylinder direct injection gasoline engine combustion chamber comprises a cylinder cover, a piston, a cylinder sleeve, a spark plug and a fuel injector, wherein the cylinder cover is provided with an intake valve and an exhaust valve; the spark plug and the fuel injector are arranged on the cylinder cover; two projections are formed on the surface of the piston; an intake valve dodge valve pit and an exhaust valve dodge valve pit are formed on the projections; and the middle part of the surface of the piston is sunken to form a main pit and a secondary pit which are communicated with each other. The wall-guided in-cylinder direct injection gasoline engine combustion chamber can guide all the fuel into the main pit by using the secondary pit when the fuel is injected later and can increase the contract area of the fuel and air by using the depth difference between the main pit and the secondary pit, so the fuel wall-wetting amount of the head of the piston can be reduced; and finally, the fuel is guided to the spark plug through a reducing main pit wall, so the fire stability during stratified combustion can be guaranteed, the oil-air mixing process in the combustion chamber space is enhanced, the contact of the fuel and the wall is reduced, stable combustion can be maintained, and discharge is reduced.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

AI Technical Summary

Benefits of technology

This new design allows for better control over how much liquid or solid particles are mixed into an internal combustible mixture during operation compared to previous designs that had only one step at once before injecting it onto each other's surface. By guiding some of this excessive fuel towards certain parts instead of directly hitting them from behind (the main) gallery, there will be less chance of getting too many small droplets together). Additionally, if the distance between these two areas varies slightly, they also help prevent drywall formation near specific points within the system due to insufficient oxygen supply caused by poorly distributed fuel spots. Overall, this technology improves efficiency and performance while reducing pollution levels associated with traditional engines.

Problems solved by technology

Technological Problem: Directly Interval Gasoline (DIG) internal combustions have limitations when trying to create stable mixtures within the cylinders due to incomplete burning caused by excessive oxygen content inside the cylins. To address these challenges, there exist techniques such as wall-guideled direct injection systems where only some parts of the cylines receive enough fuel before they fully vaporise into gases while other areas continue to absorb too much oil mist. Additionally, existing approaches like atomization guns also require precise control over their operation, leading to increased complexity and reduced reliabilities compared to conventional diesel engines.

Images