Patent-family-89618790

Disclosed is a diaphragm compressor arrangement (1) comprising a first diaphragm compressor (2) including a first diaphragm (3 ) arranged between a first hydraulic fluid chamber (4) and a first gas chamber (5) and it comprises a second diaphragm compressor (6) including a. second diaphragm (7) arranged between a second hydraulic fluid chamber (8) and a second gas chamber (9). The diaphragm compressor arrangement (1) further includes a drive arrangement (10) comprising a first cylinder (11) and a second cylinder (12), wherein each of the first and second cylinders (11, 12) comprises a piston (13) and a. first piston chamber (14), wherein a. piston rod (26) is extending from the piston (13), through the first piston chamber (14), and out through a piston rod hole (15) in an piston rod end (16) of the first piston chamber (14) and wherein each of the first and second cylinders (11, 12) comprises a second piston chamber (17) formed on an opposite side of the piston (13) in relation to the first piston chamber (14). The drive arrangement (10) comprises drive means (18) connected to the piston rod (26) of the first and second cylinders (11, 12), and wherein the drive means (18) are arranged to reciprocate the pistons (13) in the first cylinder (11) and the second cylinder (12) synchronously. Furthermore, the first piston chamber (14) of the first cylinder (11) and the second cylinder (12) is in fluid communication with the first hydraulic fluid chamber (4) and wherei n the second piston chamber (17) of the first cylinder (11) and the second cylinder (12) is in fluid communication with the second hydraulic fluid chamber (8). Use of a diaphragm compressor arrangement (1) is also disclosed.