VALVE DRIVE Russian patent published in 2014 - IPC F16K31/04 F16K37/00 

FIELD: machine building.

SUBSTANCE: invention refers to the valve drive. The valve drive contains body, motor connected with primary power source and with valve, with possibility to change the valve position from first position, when fluid can flow, at least, along one path to the second position, when the fluid flow either is locked or can flow, at least, along the second path. At least one sensor is made with the possibility to determine either valve position or valve speed. A switch controls the power supply to the motor. The power supply circuit is connected with the switch and includes a controller connected with at least one sensor and power supply circuit. The controller is intended for data acquisition in real time, such data relates to the valve position or speed, as well as for acquisition of data relating the power supply mode, to calculate updating of the position or speed in proportion to difference between the obtained data relating to the valve position or speed, respectively, and obtained data relating the power supply mode. Also the controller is intended to transmit new settings of the power supply to the power supply circuit that amplifies the controller signal.

EFFECT: invention eliminates the water hammer.

18 cl, 9 dwg