CENTRIFUGE WITH HYDRAULICALLY-DRIVEN ROTATIONAL SPEED DIFFERENTIAL Russian patent published in 2008 - IPC B04B1/20 

FIELD: mechanics; hydraulic equipment.

SUBSTANCE: subject of the invention is a centrifuge incorporating a hydraulically-driven rotation speed differential. The centrifuge accommodates a drum to run inside it while a screw is arranged inside the drum to run inside the latter. The screw rotational speed differs from that of the drum, both being driven by a central stationary motor unit. The hydraulic motor fed from the hydraulic pump controls the rotational speed differential the case of which, on the one side, and its rotor, on the other side, are connected in between the drum and screw. The hydraulic motor and hydraulic pump are mounted to run together, while the hydraulic pump rotor seats on a supporting lever outside the centrifuge running parts and does not run together with the pump and motor. Here, the variation in the amount of fluid fed from the hydraulic pump to the hydraulic motor is effected by hydraulically-controlled regulators mounted to run together with the drive. The proposed invention allows decreasing the overall sizes of the device and possible leaks in the device operation.

EFFECT: decrease in fluid leakage in operation of the smaller size device.

9 cl, 17 dwg