Automotive solenoid valve materials usually include metal and plastic. Metal parts, such as valve bodies and spool, often use stainless steel or brass and other corrosion-resistant materials; For plastic parts such as seals and housings, use high temperature and corrosion resistant engineering plastics
Working principle
The working principle of the automotive solenoid valve is based on the electromagnetic force. When the current passes through the coil of the solenoid valve, a magnetic field is generated, causing the spool to be attracted and move, thus opening or closing the valve. Specifically, when energized, the electromagnetic coil produces a magnetic force, which makes the spool move and changes the path of the fluid; When the power is off, the magnetic force disappears, the spool is reset under the action of the spring, and the valve is closed
