An axial flux motor water pump comprising a housing, a cover attached to the housing, a stator mounted within the housing, the stator comprising a plurality of stator poles mounted in a ring, each stator pole comprising an electric wire winding, a rotor journaled to the housing in cooperating relation to the stator on a single bearing, an impeller fixed to an end of the rotor, a plurality of magnets mounted to an end of the rotor in cooperative relation to the stator poles, a seal between the rotor and housing whereby the stator and magnets are in a dry zone, the stator enrobed in thermal potting within the housing; and power electronics contained in the cover. The rotor portion of the rotor may be manufactured in a sintering process.

A pump arrangement for a drum or container pump, the pump arrangement including a pump housing; a drive shaft support tube received in the pump housing; and a drive shaft rotatably supported in the drive shaft support tube at a rotor side bearing and at a pump arrangement coupling, wherein the drive shaft runs freely between the rotor side bearing and the pump arrangement coupling, wherein the drive shaft runs through the at least one support ring that is fixed relative to the pump housing and that has an inner diameter that is greater than an outer diameter of the drive shaft and that is arranged between the rotor side bearing and the pump arrangement coupling.

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

The invention is based on a pump apparatus, in particular a magnetic coupling pump apparatus, having a rotor shaft (16), having a pump impeller (22) which is securely connected to the rotor shaft (16), having at least one axial bearing (18) which rotatably supports the rotor shaft (16) at a side facing the pump impeller (22), having a magnetic pump stator (42), having a magnetic pump rotor (44) which is connected to the rotor shaft (16) in a rotationally secure manner, having a containment can (30) which extends between the magnetic pump stator (42) and the magnetic pump rotor (44) and which at least partially closes a central pump space (28), and having at least one central support element (32) which is mounted in the region of the pump impeller (22) in a rotationally secure manner.

It is proposed that the pump apparatus (1) have an elastomer disk (36) which is arranged between the support element (32) and the axial bearing (18) and that the magnetic pump stator (42) and the magnetic pump rotor (44) be arranged with an axial offset (X) with respect to each other, wherein the magnetic pump stator (42) and the magnetic pump rotor (44) are provided as a result of the axial offset (X) to produce an axial force F(ax, mag) in the direction of the elastomer disk (36).

An electric centrifugal pump includes a water pump shell, a water sealing bearing, a water pump impeller, a spring washer, an inner motor cover, a bearing pedestal, a front rotor bearing, a motor stator, a motor rotor, a shaft of the motor rotor, a rear bearing of the motor rotor, a leading impeller, a leading impeller cover, a water pump driving control panel, a controller cover and a motor shell, and an internal forced cooling system is formed by the water inlet cavity of the water pump, an axial through hole of the shaft of the motor rotor, the leading impeller, a leading impeller cavity of the leading impeller, a spiral overflowing hole of the inner motor cover, a rotor cavity, a spiral overflowing hole of the bearing pedestal and the water pump impeller which are sequentially communicated.

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

A water pump with an impeller driven by an electrical machine comprising a housing cap and a volute with an inlet) and an outlet and a boot hosting a stator and a rotor of the electrical machine, wherein the rotor is mounted on a fixed shaft in the water pump having a bushing rotatable mounted on the shaft.

The invention relates to a pump assembly, especially of a mechanical seal assembly, for supplying a fluid, especially to a mechanical seal (2a, 2b), comprising exactly one drive (11) comprising a drive shaft (24), a first axial pump (21), which conveys the fluid in the axial direction (X-X) of the drive shaft, a second axial pump (22), which conveys the fluid in the axial direction of the drive shaft, and a radial pump (23), which conveys the fluid in the radial direction (R) of the drive shaft, wherein the first axial pump (21) and the second axial pump (22) are arranged in front of the radial pump (23) in the flow-through direction (B) of the fluid across the pump assembly, and wherein the drive (11) simultaneously drives the first axial pump (21), the second axial pump (22) and the radial pump (23).

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.