Energy-saving electric control valve and electric control fuel system

Abstract

The invention relates to an energy-saving electric control valve and an electric control fuel system. The energy-saving electric control valve comprises a shell, a driving source, a guide rod, a firstvalve element, a second valve element and a compressible component. The electric control fuel system comprises a fuel tank, a liquid level sensor, a pressure sensor, a carbon tank and a controller. The liquid level sensor, the pressure sensor and the energy-saving electric control valve are all in electric signal connection with the controller. A first connecting port in the energy-saving electric control valve is connected with an exhaust port in the fuel tank, a second connecting port is connected with an air inlet in the carbon tank, a third connecting port is connected with an atmosphericpipeline, and a fourth connecting port is connected with an exhaust port in the carbon tank. According to the energy-saving electric control valve and the electric control fuel system, with the energy-saving electric control valve, communication between the fuel tank and the carbon tank is cut off, it is avoided that oil vapor enters the carbon tank and causes overlarge load of the carbon tank, and less environmental pollution is caused; and the opening degree of a channel can be controlled by controlling the moving distance of a driving source, and the volume is accurately controlled in theprocess of filling and supplementing fuel oil.

Description

technical field [0001] The invention relates to the technical field of fuel tanks, in particular to an energy-saving electric control valve and an electric control fuel system. The electric control fuel system takes the electric control valve as the core, and the electric control fuel system is adapted to different vehicles by adjusting the electric control valve. It realizes functions such as controllable fuel filling, vapor emission management, and on-board diagnostic system (OBD) detection. Background technique [0002] In order to meet the increasingly stringent laws and regulations, under certain conditions, it is necessary to seal the fuel gas in the fuel system and use the fuel tank isolation valve to control. The interactive change of the ambient temperature will cause the pressure inside the fuel tank to also change interactively. If the pressure exceeds a certain range, it will cause The deformation of the fuel tank is too large, so the fuel tank isolation valve ha...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an energy-saving electronically controlled valve and electronically controlled fuel system to solve the problems of low steam management accuracy, low integration and difficult regulation of different components in the existing fuel system, and to improve the control accuracy of the fuel system. Detect potential leaks in the fuel system and reduce environmental pollution

Images