Automatic valve for cleaning the sensor surfaces of an autonomous vehicle

An automatic valve for cleaning surfaces, comprising:

• a valve body including a fluid duct connecting a fluid inlet and a fluid outlet of the valve body;
• a diaphragm arranged to adopt, by deformation, either a closed position or an open position, the diaphragm sealing off the fluid duct when the diaphragm is in the closed position and allowing fluid to flow in the fluid duct from the fluid inlet to the fluid outlet when the diaphragm is in the open position;
• and
• an actuator including a stop, a spring and a piston, the piston comprises a main body extending from a first end toward a second end along an axis of elongation, the piston configured to move, by translation along the axis of elongation, between an engaged position and a disengaged position, the piston adopting, by default and under action of the spring, the engaged position wherein the piston holds the diaphragm in the closed position, the actuator further comprising activation means configured to force the piston to move in the direction of the stop toward the disengaged position so as to allow the diaphragm to adopt the open position, the actuator comprising a damping body positioned between the second end and the stop, the damping body having a lower rigidity than a rigidity of the main body so as to dampen movement of the piston when the piston moves from the engaged position toward the disengaged position.