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Various electromagnetic valve works (Dieselpartsworld) 2016-01-22
Various electromagnetic valve works
Solenoid valve is used to control fluid automation infrastructure components, belonging to the actuator; not limited to hydraulic, pneumatic. Solenoid valve for controlling the flow direction of the hydraulic, mechanical plant are usually controlled by hydraulic cylinder, so it will use the solenoid valve.
Solenoid valve in the closed chamber, at different locations with holes, each hole leads to a different pipeline, the middle chamber is a valve, both sides are two electromagnets, which face the magnet coil is energized the valve will be attracted to which side, by controlling the movement of the valve body to a different file live or leaked oil discharge hole, and into the hole is normally open, the hydraulic oil will enter a different outlet pipe, then through the oil pressure to push oil just pistons, piston and drive the piston rod drive mechanism moving.
Thus by controlling the solenoid current is controlled mechanical movement. Right above the general principle of the solenoid valve is in fact, according to the temperature of the flowing medium, pressure and other conditions, such as pipeline pressure and gravity state without pressure. Solenoid valve works are different.
For example, in the state requires zero gravity pressure to start is energized, the brake coil entire body suck up. The state of the solenoid valve pressure, it is sucked out of the coil is energized inserted in the body of a pin gate, with the brake fluid pressure of their own body top up.
The difference between these two methods is that the solenoid valve gravity state, because the coil to pick up the entire brake body, so bulky and pressurized state of the solenoid valve, just pick up the pins, so the volume can do more small.
Direct acting solenoid valve:
Distribution of direct-acting solenoid valve:
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