Patent · US Active

Electric coolant pump having a coolant flow path around a stator, a rotor and a control circuit

US11708843B2 · kind B2 · utility

0Cited by

10References

5Claims

0Family size

Assignee

NIDEC GPM GMBH · DE

Inventors

Conrad Nickel · Troistedt, DE
Franz Pawellek · Herbstein, DE
Jens Hoffmann · Darmstadt, DE

Key dates

Filing date	Dec 13, 2018
Grant date	Jul 25, 2023
Priority date	—
Expiry date	Jan 25, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05B2260/232
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electric coolant pump (1) conveys cooling fluid in order to cool a combustion engine of a vehicle. The electric coolant pump (1) has a pump impeller (2) for accelerating the coolant to be conveyed, a rotor shaft (3) on which the pump impeller (2) is fixed, an electric motor (6), having a stator (8) and a rotor (7), for driving the rotor shaft (3). A control circuit (13) controls the electric motor (6). A pump housing (10) accommodates at least the control circuit (13) and the electric motor (6). The coolant to be conveyed is able to flow through the pump housing (10). The coolant to be conveyed thereby flows around the stator (8), the rotor (6) and the control circuit (13).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.