Lastausgleichsfunktionalität in einer Pumpeneinheit

Details

Veröffentlichungs-Nr.

EP4760109

Anmeldetag

5. Dezember 2025

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

Abstract

The invention relates to a controller (80) for a pump (42) with a variable pump capacity (PPC) in a pump unit (41). It has a sensor interface (81) for receiving internal signals (ITS) and a communication interface (82) for receiving the external signals (EXS) from a first fluid circuit (10) with further pump units (41a, 41b). It obtains an individual pressure increase (IPI) over the pump (42) with the internal signals (ITS). In a normal-mode operation, it controls the pump capacity (PPC) based on the external signals (EXS). It determines if the external signals (EXS) are received no longer and/or receives a failure-indication signal from the first fluid circuit (10), and then automatically switches to a failure-mode operation. It stores reference information (RFI) based at least on a part of the external signals (EXS) in the normal-mode operation in a memory (83) and controls, in the failure-mode operation, the pump capacity (PCC) based at least on the individual pressure increase (IPI) and the reference information (RFI); and/or it controls, in the failure-mode operation, the pump capacity (PPC) based at least on the individual pressure increase (IPI), on the pump capacity (PCC), and a failure-mode specific adaptation of a deadband (DB) for controlling the pump capacity (PCC). The invention also relates to a cooling distribution unit (30) with the controller (80), a data center cooling system (1) with the latter, and a method for controlling a pump (42).

Anmelder

Firma

Danfoss A/S

Land

🇩🇰 Dänemark