METHOD AND DEVICE FOR CONTROL OF SPEED OF ELECTROHYDRAULIC DRIVE Russian patent published in 2006 - IPC F15B9/03 

FIELD: mechanical engineering.

SUBSTANCE: method comprises control of conductivity of the throttle ports in slide valve mechanism by positioning the slide valve with simultaneous control of the flow rate from the source of the hydraulic fluid. The device comprise pump of controlled delivery provided with the mechanism for control of flow rate and having inlet unit, servo electrohydraulic drive that has hydraulic motor connected with the spaces of the hydraulic motor, and slide valve with the control member connected with the feedback pickup through the adder. The device is also provided with the servo drive connected with the mechanism for control of the pump delivery and digital computing unit whose output is connected to the input of the servo drive.

EFFECT: expanded functional capabilities.

12 cl, 2 dwg