MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617083484 A) filed by Putzmeister Engineering Gmbh on July 07, 2026, for Method For Operating A Construction-Material And/Or Viscous-Material Pump System, And Construction-Material And/Or Viscous-Material Pump System.
Inventors include Hfner, Jens; Mller, Ansgar; and Raible, Marco.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The invention relates to a method for operating a construction-material and/or viscous-material pump system (1), the construction-material and/or viscous-material pump system (1) comprising: - a construction-material and/or viscous-material delivery system (2), which is designed to deliver construction material and/or viscous material (BDS) with a variably adjustable delivery flow (FF), and - a hydraulic drive system (3), which has the following for driving the construction-material and/or viscous-material delivery system (2): - at least one drive cylinder (4a, 4b) and at least one associated drive piston (5a, 5b) which is arranged for stroke movement in the drive cylinder (4a, 4b), - a drive pump device (6) which has at least one, in particular exactly one, drive pump (7) which is designed to rotate at a variably adjustable pump rotational speed (n7) in order to generate a variably adjustable drive flow (AF) of hydraulic fluid (HF) for stroke movement of the drive piston (5a, 5b), and - a drive motor device (8) which has at least one, in particular exactly one, electric drive motor (9) which is designed to variably adjust the motor rotational speed (n9) of the electric drive motor in order to rotate the drive pump (7) at the pump rotational speed (n7) in order to generate the drive flow (AF), - wherein the method has the steps of: a) accelerating the drive piston (5a, 5b) away from a stroke starting point (HAPa, HAPb) of the drive piston (5a, 5b) in order to start the stroke movement by increasing the motor rotational speed (n9), in particular from zero, and b) braking the drive piston (5a, 5b) to a stroke end point (HEPa, HEPb) of the drive piston (5a, 5b) in order to end the stroke movement by lowering the motor rotational speed (n9), in particular at least to zero.
Disclaimer: Curated by HT Syndication.
