Abstract: A diaphragm pump comprises a carrier part, a drive motor with a drive shaft, a pump head with a pump chamber delimited by a diaphragm, and an inlet port and outlet port. The pump head is connected to the drive shaft such that the direction of oscillation of the diaphragm is orthogonal with respect to the axis of rotation of the drive shaft. A drive transmission element is mounted on the pump head and is guided in a bearing disk mounted to be rotatable eccentrically, so as to be displaceable orthogonally with respect to the direction of oscillation of the diaphragm, such that the drive transmission element generates the oscillatory movement of the diaphragm in the pump chamber during the rotation of the pump head, and as a result of the rotation a pump medium line arranged therein is alternately connected to the inlet port and the outlet port.

Abstract: A diaphragm pump comprises a carrier part (1), a drive motor (2) which is arranged thereon and which has a drive shaft (3) which rotates about a main axis of rotation (HR), a pump head (4, 4?) with a pump chamber (8, 8?) which is delimited by a diaphragm (7, 7?) driven in oscillation, and an inlet port (11) and outlet port (10), which are arranged on the carrier part (1) and which are each able to be alternately connected via a shuttle valve arrangement (12, 12?) to the pump chamber (8, 8?) in the sense of an intake stroke and exhaust stroke, wherein the pump head (4, 4?) is mounted rotatably in the carrier part (1) and is connected to the drive shaft (3) in an orientation such that the direction of oscillation (SR) of the diaphragm (7, 7?) is directed orthogonally with respect to the main axis of rotation (HR) of the drive shaft (3), there is provided for the diaphragm (7, 7?) a drive transmission element (13, 13?), which firstly is mounted on the pump head (4, 4?) so as to be displaceable in the directi

Abstract: A pump for conveying a fluid comprises a pump housing (1) with a fluid inlet (26), a pumping chamber (4), which has a flow connection to the fluid inlet (26), and a fluid outlet (25), which has a flow connection to the pumping chamber (4). The pump furthermore has a drivable pump body (2), which at least partially limits the pumping chamber (4), and a pump body drive device. The pump body drive device comprises a pump body drive mechanism (3) which is connected to the pump body (2) and which comprises a first drive magnet (16) and is moveable along a displacement path, and a second drive magnet (11) arranged adjacent to the pump body drive mechanism (3) for moving the pump body drive mechanism (3) along the displacement path. The pump also comprises an actuable fixing device (33) for fixing the pump body drive mechanism (3), which, in a release position, releases the pump body drive mechanism (3) and, in a fixing position, fixes the pump body drive mechanism (3).

Abstract: A delivery pump for a delivery fluid comprises at least one valve plate (4), at least one actuatable pumping diaphragm (3) attached to the at least one valve plate (4) in a fluid-tight manner for delivering the delivery fluid, said pumping diaphragm (3) defining at least one pumping chamber (2) together with the at least one valve plate (4) and having at least one free fold (16), extending over at least one circumferential area of the at least one pumping diaphragm (3), for changing the volume of the at least one pumping chamber (2), at least one inlet opening (7) disposed in the at least one valve plate (4) for guiding the delivery fluid into the at least one pumping chamber (2), and at least one outlet opening (8) disposed in the at least one valve plate (4) for guiding the delivery fluid out of the at least one pumping chamber (2).

Abstract: A positive displacement pump (1) for transporting a fluid with automatic adaptation to the compressibility of that fluid has a pumping chamber (15) with a variable volume (V) which is on the one hand delimited by a rigid chamber cover plate (10) and on the other hand by an elastic diaphragm (9), a suction channel (29) which is in flow connection with the pumping chamber (15) for sucking the fluid to be transported into the pumping chamber (15), an outlet channel (24) which is in flow connection with the pumping chamber (15) for discharging the fluid to be transported from the pumping chamber (15), and a drive device (29) for cyclically increasing and reducing the current volume (V) of the pumping chamber (15), with the drive device (29) being connected to the diaphragm (9) by means of a diaphragm connecting element (34; 34a; 34b) which is spring-mounted in the drive device (29) by means of a spring element (33; 33a; 33b).