Abstract:
An infusion pump (110) includes a housing (112); a rotor (230) inserted into the housing, the rotor including a first ring (38a) of surfaces (236a) that form channels with the housing, and a second ring (38b) of surfaces (236b) that form channels with the housing, the second channel forming surfaces radially offset from the first channel forming surfaces; and a motor (40) operably engaged to rotate the rotor to cause the first and second channel forming surfaces to pump a flow of fluid, the radial offsetting of the second channel forming surfaces from the first channel forming surfaces dampening a pulsatility of the flow of fluid.
Abstract:
An infusion pump (110) includes a housing (112); a rotor (230) inserted into the housing, the rotor including a first ring (38a) of surfaces (236a) that form channels with the housing, and a second ring (38b) of surfaces (236b) that form channels with the housing, the second channel forming surfaces radially offset from the first channel forming surfaces; and a motor (40) operably engaged to rotate the rotor to cause the first and second channel forming surfaces to pump a flow of fluid, the radial offsetting of the second channel forming surfaces from the first channel forming surfaces dampening a pulsatility of the flow of fluid.
Abstract:
An infusion pump includes a housing; a rotor inserted into the housing, the rotor including a first ring of surfaces that form channels with the housing, and a second ring of surfaces that form channels with the housing, the second channel forming surfaces radially offset from the first channel forming surfaces; and a motor operably engaged to rotate the rotor to cause the first and second channel forming surfaces to pump a flow of fluid, the radial offsetting of the second channel forming surfaces from the first channel forming surfaces dampening a pulsatility of the flow of fluid.
Abstract:
The invention relates to an adaptive eccentric screw pump (2), which enables, if necessary, an increase of the output, the pressure and/or the simultaneous output of more than one output medium, and wherein the eccentric screw pump (2) has comparably low energy consumption and the production and maintenance expenditure thereof is kept low. For this purpose, according to the invention, the eccentric screw pump (2) is equipped with a modular output system, comprising at least two output modules (4, 6, 38, 40) comprising in each case one rotor (10) and one stator (8), wherein the output modules (4, 6, 38, 40) are coupled to one another and merely one actuation unit (14) is associated with the output system, and wherein the output system for an output medium has more than one inlet and/or outlet (18, 24) or at least one modular perfusion housing (12).
Abstract:
Die Erfindung betrifft eine adaptive Exzenterschneckenpumpe (2), welche bei Bedarf eine Erhöhung der Förderleistung, des Druckes und/oder die gleichzeitige Förderung von mehr als einem Fördermedium ermöglicht und wobei die Exzenterschneckenpumpe (2) einen vergleichsweise geringen Energieverbrauch aufweist und deren Herstellungs- und Wartungsaufwand gering gehalten wird. Dazu ist erfindungsgemäß die Exzenterschneckenpumpe (2) mit einem modularen Fördersystem ausgestattet, enthaltend mindestens zwei jeweils einen Rotor (10) und einen Stator (8) umfassende Fördermodule (4, 6, 38, 40), wobei die Fördermodule (4, 6, 38, 40) miteinander gekoppelt sind und dem Fördersystem lediglich eine Antriebsvorrichtung (14) zugeordnet ist und wobei das Fördersystem für ein Fördermedium mehr als einen Ein- und/oder Ausgang (18, 24) oder mindestens ein modulares Durchströmungsgehäuse (12) aufweist.
Abstract:
Axial fan compact bearing viscous pump having two spaced apart bearing housings and a bearing supported within each bearing housing. A shaft is supported within each bearing housing. The shaft has two oil disks, each bearing having an oil disk proximate thereto. The portion of each bearing housing fitting about a respective one of the oil disks forms a viscous pump housing. The viscous pump housing has an oil inlet and an oil outlet. The oil outlet is spaced from the oil inlet. On an inner periphery of the viscous pump housing, an oil channel in an inner periphery facing an outer periphery of the one of the oil disks extends only partway around the viscous pump housing inner periphery. The oil channel extends from the oil inlet in the direction of rotation of the shaft to a point beyond the oil outlet.
Abstract:
The invention relates to an adaptive eccentric screw pump (2), which enables, if necessary, an increase of the output, the pressure and/or the simultaneous output of more than one output medium, and wherein the eccentric screw pump (2) has comparably low energy consumption and the production and maintenance expenditure thereof is kept low. For this purpose, according to the invention, the eccentric screw pump (2) is equipped with a modular output system, comprising at least two output modules (4, 6, 38, 40) comprising in each case one rotor (10) and one stator (8), wherein the output modules (4, 6, 38, 40) are coupled to one another and merely one actuation unit (14) is associated with the output system, and wherein the output system for an output medium has more than one inlet and/or outlet (18, 24) or at least one modular perfusion housing (12).
Abstract:
Ein Vakuumpumpen-System weist eine erste Vakuumpumpe (10) auf, die partikelunempfindlich ist. Eine zweite Vakuumpumpe (12), die mit der ersten Vakuumpumpe (10) verbunden ist, ist partikelempfindlich. Das Verbindungselement (14) zwischen den beiden Vakuumpumpen (10, 12) ist derart ausgebildet, dass es eine steife Verbindung herstellt und die erste Vakuumpumpe (10) trägt. Ferner ist das Verbindungselement (14) mit Filterelementen (18, 20) verbunden. Das Vorsehen eines die Vakuumpumpen tragenden Stahlgerüsts ist nicht erforderlich.
Abstract:
Method and device for the precise dosing of a pressurized liquid, with the aid of a device, in which there is a pair of gears (4, 5), which are installed on shafts (2, 3) in a gear housing, in the wall of which is a channel (15), the shaft (2) being hollow, and in the wall of the shaft (2) there is an opening (17), in order to permit a liquid flow between the external and internal spaces of the shaft. The dosing speed of the liquid brought through the channel (15) to the pair of gears (4, 5) is regulated by rotating the hollow shaft (2) with the aid of a drive device (16), and the power of the flow exceeding the desired amount is cut off with the aid of the rotation of the gear (4) relative to the shaft (2), when the opening (17) is throttled by the rotation.