STEP DRIVE WITH VOLUMETRIC BATCHING Russian patent published in 2009 - IPC F15B11/12 

FIELD: engines and pumps.

SUBSTANCE: proposed drive is designed to actuate various production equipment and comprises actuator coupled with the reversing slide valve, fixed batcher casing with the channels communicating with the reversing slide valve. The said actuator is coupled also with the power supply and drain line. The drive includes also the batcher plug rigidly linked with motor shaft and arranged in the casing to rotate therein. Note that the said radial-piston batcher plug features radial channels and is furnished with pistons fitted in spaced apart radial channels of the said plug to reciprocate therein.

EFFECT: simpler design.

4 dwg