Abstract: A turbomachine includes a housing and an electric motor in the housing. The electric motor has a shaft, a stator, and a rotor on the shaft. At least one impeller is arranged in a pump housing and driven by the shaft, the impeller having at least one ring of rotor blades delimiting a ring of blade chambers. A side channel is arranged in the pump housing opposite the ring of blade chambers and extends from the pump inlet as far as the pump outlet. A ramp is arranged at an end of the side channel in a radially inner half of the side channel. The ramp starts from a channel bottom, rises in a flow direction as far as the height of the pump housing wall, and merges with its radially outer half into the pump outlet.

Abstract: An oil pump in a motor vehicle, having a case and an electric motor mounted in the case. The electric motor drives a pump stage which is likewise mounted in the case. The oil pump is an axial flow centrifugal pump.

Abstract: An impeller for a side channel flow machine has impeller blades. An inlet region of the impeller blade is off-set from the outlet region. The inlet region is connected to the outlet region via a sloped transition region. The impeller allows a high degree of efficiency of the side channel flow machine and can be produced at particularly low cost.

Abstract: An electric fluid pump having a rotor. The rotor of the pump is provided with elements that produce an at least partially axially directed fluid flow in the wet section of the pump during rotation of the rotor. This fluid flow serves to cool components of the pump that are arranged in or on the wet section.

Abstract: In a centrifugal pump for delivering liquids in a motor vehicle, annular webs project into a gap seal between a housing part and a cover disc of a rotor. The webs are arranged on both components of the housing part and of the cover disc and delimit chambers which accelerate, decelerate and divert a flow. In this way, the gap seal has a high throttling action.

Abstract: An impeller for a side channel flow machine has impeller blades the inlet region of the impeller blade is off-set from the outlet region. The inlet region is connected to the outlet region via a sloped transition region. The impeller allows a high degree of efficiency of the side channel flow machine and can be produced at particularly low cost.

Abstract: A turbomachine includes a housing and an electric motor in the housing. The electric motor has a shaft, a stator, and a rotor on the shaft. At least one impeller is arranged in a pump housing and driven by the shaft, the impeller having at least one ring of rotor blades delimiting a ring of blade chambers. A side channel is arranged in the pump housing opposite the ring of blade chambers and extends from the pump inlet as far as the pump outlet. A ramp is arranged at an end of the side channel in a radially inner half of the side channel. The ramp starts from a channel bottom, rises in a flow direction as far as the height of the pump housing wall, and merges with its radially outer half into the pump outlet.

Abstract: In a centrifugal pump for delivering liquids in a motor vehicle, annular webs project into a gap seal between a housing part and a cover disc of a rotor. The webs are arranged on both components of the housing part and of the cover disc and delimit chambers which accelerate, decelerate and divert a flow. In this way, the gap seal has a high throttling action.

Abstract: An oil pump in a motor vehicle, having a case and an electric motor mounted in the case. The electric motor drives a pump stage which is likewise mounted in the case. The oil pump is an axial flow centrifugal pump.

Abstract: An electric fluid pump having a rotor. The rotor of the pump is provided with elements that produce an at least partially axially directed fluid flow in the wet section of the pump during rotation of the rotor. This fluid flow serves to cool components of the pump that are arranged in or on the wet section.

Abstract: The invention relates to a rotor having at least three blades disposed between a front cover plate and a rear cover plate, the art of the suction edge of at least one blade, in the top view of the inlet side of the pumping medium, following a sinusoidal path with a single turning point W. The present invention is also directed to the use of the rotor in a centrifugal pump to pump coolant in a motor vehicle.

Abstract: The invention relates to a rotor wherein there are at least three blades (1) disposed between a front cover plate (5) and a rear cover plate (6), the arc (2) of the suction edge of at least one blade (1), in the top view of the inlet side (3) of the pumping medium, following a sinusoidal path with a single turning point W. The subject of the invention additionally comprises the use of the rotor in a centrifugal pump to pump coolant in a motor vehicle.