Fluid pump
AssigneePierburg GmbH
InventorAlbert Genster
Life of this patent
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Abstract
The invention relates to an electric fluid pump with a semi-axial construction, in which a motor housing part (9), situated at the pressure end, has a conduction device (42). The conduction device (42) allows an almost completely irrotational flow to be achieved so that the kinetic energy of the tangential component of the flow velocity is converted into pressure energy with negligible friction losses. This feature of the invention increases the efficiency of the fluid pump. The dimensions of the electric motor can therefore be reduced while maintaining the same delivery quantity.
Claims12
A fluid pump for internal combustion engines, comprising.
- an electric motor having a rotor arranged in a motor housing and a stator, wherein the rotor is arranged on a drive shaft at least in a manner secured against rotation;
- an impeller fastened on the drive shaft;
- at least one set of guide vanes arranged behind the impeller in a flow direction of fluid to be conveyed;
- and
- a pump housing enclosing the motor housing, the impeller and the guide vanes, wherein a pressure port and an intake port are arranged at opposite axial ends of the pump housing;
- wherein
- a pressure-side motor housing part of the motor housing includes a conduction device.
Dependencies are inferred from the claim text.