TURBO WASTEGATE ACTUATOR

Description

In order to improve the low-speed performance of the supercharger, the shell is made smaller, which will improve the low speed, but in order to make the high-speed supercharger does not speed to ensure high reliability so that Bypass some of the engine’s gas.

The waste gas bypass valve comprises a valve assembly which is composed of a valve body, a sealing valve and a sleeve, and an actuating mechanism which is composed of an upper cover, a lower cover, a supporting disc, a spring and a diaphragm; a valve cavity is arranged in the valve body, An air outlet; the sleeve is pressed into the valve body, the sealing valve is supported in the sleeve and can slide in the valve cavity; the lower cover is connected with the sleeve and the valve body; the upper cover is arranged on the lower cover to form a sealed Of the cavity; support plate and the spring is placed in the cavity, the support plate and the upper end of the sealing valve connected to the diaphragm at one end pressed against the support plate, the other end pressed against the upper and lower cover, the diaphragm will be on, The cavity between the lower cover is divided into upper and lower two sealed chambers, and the back and the positive pressure air inlet nozzles are respectively arranged on the upper cover and the lower cover. The utility model achieves the purpose of regulating the supercharger speed, controlling the output power of the supercharger through the adjustment of the air pressure, adapting to the air intake requirements of the engine under various working conditions, thereby improving the working efficiency of the engine and meeting various emission standards.

The wastegate control valve acts as a proportional three-way solenoid valve and the ECM regulates the pulse width to provide accurate boost control under all operating conditions. Control applied to the size of waste gas bypass valve force, which controls the opening of wastegate valve.

The pressure sensor provides feedback to the ECM and provides closed feedback loop control to ensure that the wastegate valve target pressure and boost pressure are maintained.