Secondary gulp valve of carburetor for vehicle

Abstract

The invention discloses a secondary gulp valve of a carburetor for a vehicle. The secondary gulp valve comprises a gas inlet cover, a coil casing and a coil assembly. The secondary gulp valve is characterized in that a switch base is arranged between a gas outlet hole and a connection hole of the gas inlet cover, threads are arranged on an inner wall of the connection hole of the gas inlet cover, the back end of the coil casing is inserted in the connection hole to be in threaded connection with the gas inlet cover, a spring is sleeved on a front end of an armature core which is then inserted in a central hole of the coil assembly, the armature core with the spring in a sleeved mode and the coil assembly are jointly arranged in a cavity of the coil casing, and the back end of the armature core penetrates through the central hole of the coil casing to enter the middle portion of the gas inlet cover and right face to a through hole of a switch seat. The back end of the spring is limited by steps arranged on the middle portion of the armature core, the front end of the spring is limited by a boss in the coil assembly, the coil assembly receives signals of a control system electronic control unit (ECU) to control front-and-back movement of the armature core, and when the armature core moves backwards to a finishing point, the armature core abuts against a switch seat. The secondary gulp valve can be widely used in an air source control system.

Description

technical field [0001] The invention relates to a carburetor, in particular to a secondary air supply valve for a carburetor. Background technique [0002] Before the fuel enters the cylinder of the engine, it needs to be sprayed into a mist, and the air and the gas are mixed in a certain proportion to form a combustible mixture. The fuel content in this combustible mixture is called the concentration of the combustible mixture. The concentration of the combustible gas mixture should be able to make the gas mixture enter the cylinder to burn in time and completely. If the combustion is complete and complete, the heat energy generated by the combustion can be maximized, which can not only convert the heat energy into the mechanical energy of the engine to the greatest extent, but also maximize the output. High power, and can minimize the harmful substances produced by combustion. Therefore, the quality of combustion, that is, whether the combustion is complete and timely...

AI Technical Summary

Problems solved by technology

However, due to the installation of throttle position sensors, intake pressure (temperature) sensors, stepper motors and other devices on this carburetor, the addition of sensors and electronic fuel injection systems, especially the stepper motors, makes it easier to carburetor. The actuator structure is very complicated, and the cost is doubled, so it is difficult to popularize and apply

Images