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US 12,510,083 B2Granted
High speed coolant pump
AssigneeMahle International GmbH
InventorsMartin Gross, Uwe Aschermann
Life of this patent
Estimating the term…
Abstract
The invention relates to a fluid pump that has an electric motor with a shaft and an impeller with an outer diameter, that is connected to the shaft for conjoint rotation. A maximum volumetric flow and a maximum pressure difference (dp) can be generated in the fluid pump by the rotating impeller. A characteristic index number (K) for the fluid pump is greater than 350 kW/m2. The index number (K) corresponds to the product of the maximum volumetric flow and the maximum pressure difference in the fluid pump divided by the square of the outer diameter of the impeller.
Claims15
A fluid pump for conveying fluids,
- the fluid pump comprises an electric motor with a shaft that rotates about a rotational axis (RA), and an impeller with an outer diameter, the impeller is connected to the shaft for conjoint rotation, and is configured to rotate with the shaft about the rotational axis (RA), wherein a maximum volumetric flow and a maximum pressure difference for the fluid pump can be generated,
- wherein the fluid pump is configured such that a characteristic index number (K) for the fluid pump, which corresponds to the product of the maximum volumetric flow and the maximum pressure difference in the fluid pump divided by the square of the outer diameter of the impeller is greater than 350 kW/m2 at the design point of the fluid pump,
- wherein the maximum rotational rate of the impeller is between 6,900 rpm and 7,900 rpm at the design point of the fluid pump.
Dependencies are inferred from the claim text.