FIELD: engines and pumps.
SUBSTANCE: invention is related to method for operation of driving device for double-cylinder device for double-cylinder pump for high-density materials or to driving device for double-cylinder pump for high-density materials with two driving cylinders (1, 2) actuated by means of liquid, which via tubular transition device (RW) alternately, in particular, by means of driving cylinders (FR,FL) send high-density material, in particular, concrete, into common pressure pipeline. Tubular transition device is actuated with the help of liquid by means of actuating cylinder (SZ) and already during final travel of piston of every driving cylinder in piston travel before it achieves final position, at least part of liquid flow prepared for actuation of driving cylinders is used for actuation of actuating cylinder.
EFFECT: provides for fast change-over of transition device.
36 cl, 3 dwg
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