DIAPHRAGM MACHINE

The present invention concerns a multi-cylinder diaphragm machine having at least two hydraulically driven diaphragms includes: a drive unit for producing at least two pulsating hydraulic fluid flows for driving the diaphragms and a delivery unit for delivering a delivery medium and having at least two pump chambers, the volumes of which can be varied by the movement of a respective diaphragm, wherein each delivery chamber is connected by way of a pressure valve to a pressure line and by way of a suction valve to a suction line. To provide a multi-cylinder diaphragm machine which avoids or at least alleviates the specified disadvantages and which is extremely compact and thus saves on space and material, has a high energy efficiency and a high degree of flexibility in adaptation to the conditions at the installation location and with which it is at the same time ensured that mounting and dismantling of the individual diaphragms and valves are easily possible, in accordance with the invention it is proposed that the delivery unit includes a diaphragm body in which the pressure and suction lines are arranged and at least two hydraulic bodies, wherein each hydraulic body is connected to the drive unit, wherein formed between each hydraulic body and the diaphragm body is a cavity in which one of the diaphragms is arranged so that by production of the pulsating hydraulic fluid flows the diaphragms are moved within the cavities and a delivery medium is periodically transferred from the suction line into the pressure line.