A DIAPHRAGM PUMP

• Main Authors: LUNDIN, Andreas, JOHANSSON, Björn, NILSSON, Mats, MARCSTRÖM, Andreas, OLOVSSON, Björn, GRONOWITZ, David, GEBAUER, Klaus
• Format: Patent
• Language: English; French; German
• Published: 27.03.2024
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The present invention relates to a diaphragm pump for a bioprocess system comprising a pump head 1; 101; 201; 301 comprising: a common inlet 3; a common outlet 5; a plurality of pump cavities 7 each including at least one cooperating pair of one-way valves, the at least one pair of one-way valves including an inlet valve 9 and an outlet valve 11, wherein the respective inlet valves 9 are in fluid communication with the common inlet 3and the respective outlet valves 11 are in fluid communication with the common outlet 5 and wherein a centre of the outlet valve 11 for each pump cavity is positionable above a centre of the inlet valve 9 for the same pump cavity when the diaphragm pump is oriented for use to inhibit trapped gas; and a plurality of moveable diaphragms 13 each respectively provided in a respective of said pump cavities 7 for varying a volume of the pump cavities. The system further comprises a pump drive 31 which is configured to transfer a motion to the diaphragms 13 of the pump head 1; 101; 201 for accomplishing a fluid displacement from the common inlet 3 to the common outlet 5 of the pump head 1; 101; 201; 301 as a result of said varying of the volume of the pump cavities 7.