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AssigneePutzmeister Engineering GmbH
InventorsChristian Basse, Martin Jung, Michael HEIM
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The invention relates to a thick material pump (10) with two conveying cylinders (16, 18), the conveying pistons (34, 36) of which are each rigidly connected to a drive piston (38, 40) of an associated drive cylinder (26, 28) via a common piston rod (30, 32), wherein a conveying operating mode is provided in which the conveying cylinders (16, 18) are driven in counter-phase mode, in order to convey thick material (58) via a transfer tube (24) alternately connected to the conveying cylinders (16, 18) from a hopper (14) into a conveying pipe (56) (50), and a cleaning operating mode is provided in which the conveying cylinders (16, 18) jointly assume an end position on the hopper side and the transfer tube (24) is alternately switched between the two conveying cylinders (16, 18).
A thick material pump comprising two conveying cylinders, the conveying pistons of which are each rigidly connected to a drive piston of an associated drive cylinder via a common piston rod, wherein a conveying operating mode is provided in which the conveying cylinders are driven in counter-phase mode, in order to convey thick material via a transfer tube alternately connected to the conveying cylinders from a hopper into a conveying pipe, and a cleaning operating mode is provided in which the conveying cylinders jointly assume an end position on the hopper side and the transfer tube is alternately switched between the two conveying cylinders.
A method of operating a thick material pump with two conveying cylinders, the conveying pistons of which are each rigidly connected to a drive piston of an associated drive cylinder via a common piston rod, wherein in a conveying operating mode the conveying cylinders are driven in counter-phase mode in order to convey thick material via a transfer tube alternately connected to the conveying cylinders from a hopper into a conveying pipe, and in a cleaning operating mode the conveying cylinders are brought jointly into an end position on the hopper side and the transfer tube alternately opens the conveying cylinders.
Dependencies are inferred from the claim text.