EP 4036407 B1 20231206 - PUMP CONTROL BASED ON BUBBLE DETECTION
Title (en)
PUMP CONTROL BASED ON BUBBLE DETECTION
Title (de)
PUMPENSTEUERUNG BASIEREND AUF BLASENDETEKTION
Title (fr)
COMMANDE DE POMPE BASÉE SUR LA DÉTECTION DE BULLES
Publication
Application
Priority
- US 202217582455 A 20220124
- US 202163144794 P 20210202
Abstract (en)
[origin: EP4036407A1] A pump system (110) includes a drive motor (240), a pump head (222) that receives tubing, and a controller (260) configured to control a rotation of the drive motor (240) to move a liquid within the tubing from an inlet to an outlet. A bubble sensor (112) is coupled to the tubing downstream from the outlet and configured to send a signal to the controller (160) in response to presence of a gas bubble within the tubing. The controller (160) is configured to: determine a quantity of bubbles detected based on the signal; determine an alert in response to the quantity of bubbles detected exceeding a threshold; and stop the drive motor after a safe operating time from the alert. The threshold and the safe operating time are based, at least in part, on a characteristic of the tubing. The corresponding method of operating a pump system (110) is also disclosed.
IPC 8 full level
F04B 43/08 (2006.01); F04B 43/00 (2006.01); F04B 43/09 (2006.01); F04B 43/12 (2006.01); F04B 49/06 (2006.01); F04B 49/10 (2006.01); F04B 51/00 (2006.01)
CPC (source: EP US)
F04B 43/0072 (2013.01 - EP); F04B 43/0081 (2013.01 - EP US); F04B 43/08 (2013.01 - EP); F04B 43/09 (2013.01 - EP US); F04B 43/12 (2013.01 - EP); F04B 49/06 (2013.01 - US); F04B 49/065 (2013.01 - EP); F04B 49/10 (2013.01 - EP); F04B 51/00 (2013.01 - EP); F04B 2205/503 (2013.01 - EP); F04B 2207/70 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4036407 A1 20220803; EP 4036407 B1 20231206; US 2022243714 A1 20220804
DOCDB simple family (application)
EP 22154617 A 20220201; US 202217582455 A 20220124