Temperature control system of in-cylinder direct injection gasoline injector

Abstract

A temperature control system of an in-cylinder direct injection gasoline injector comprises a temperature control module arranged in the gasoline injector and an engine control unit arranged in a cab. According to the temperature control system, fuel oil temperature of the gasoline injector can be collected accurately and compared with the optimal fuel oil temperature, the engine control unit controls a power source to apply required heating electric power to a heating cylinder, and accurate closed-loop control over the optimal fuel oil temperature is achieved.

Description

technical field [0001] The invention relates to a gasoline engine fuel injector, in particular to a temperature control system for an in-cylinder direct-injection gasoline fuel injector. Background technique [0002] The wide application of gasoline engine direct injection system enhances the transient response capability of gasoline engine and improves its fuel economy at the same time. However, the problems of difficult start-up of direct-injection gasoline engines under cold start conditions and excessive emission of exhaust particulate matter have always been the focus of research in academic and industrial circles. Studies have shown that properly raising the fuel temperature to achieve fuel flash spray can significantly improve the fuel atomization and evaporation effects under low fuel injection pressure conditions, reduce gasoline engine exhaust emissions, and improve fuel economy. [0003] At present, all such technologies for heating fuel oil basically realize the...

AI Technical Summary

Problems solved by technology

However, the difficulty of starting direct-injection gasoline engines under cold start conditions and the excessive emission of particulate matter in exhaust gas have always been the focus of research in academic and industrial circles

[0005] 2. Open-loop heating using the characteristics of ceramic materials cannot accurately control the fuel temperature;

[0006] 3. The heating mechanism needs to be designed separately for different engines, and the versatility is poor

Images