Invention Grant
- Patent Title: Electric fluid pump for a motor vehicle
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Application No.: US16758402Application Date: 2017-10-25
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Publication No.: US11462971B2Publication Date: 2022-10-04
- Inventor: Alessandro Malvasi , Christian Schulz , Frank Buerger , Martin Glogasa , Witold Joschko
- Applicant: PIERBURG PUMP TECHNOLOGY GMBH
- Applicant Address: DE Neuss
- Assignee: PIERBURG PUMP TECHNOLOGY GMBH
- Current Assignee: PIERBURG PUMP TECHNOLOGY GMBH
- Current Assignee Address: DE Neuss
- Agent Norman B. Thot
- International Application: PCT/EP2017/077309 WO 20171025
- International Announcement: WO2019/081011 WO 20190502
- Main IPC: H02K11/00
- IPC: H02K11/00 ; H02K11/215 ; H02K29/08 ; H02K1/276

Abstract:
An electric fluid pump for a motor vehicle includes an electric drive motor which is brushless and electronically commutated. The electric drive motor includes a permanent-magnetic motor rotor having a motor shaft and at least two rotor poles, each of the at least two rotor poles having one permanent magnet embedded therein, a plurality of stator-side magnetic coils, at least two sensor magnets each emitting an axial magnetic field and each having polarities, and at least one Hall sensor which is arranged to lie eccentrically in a transverse plane so that the at least one Hall sensor detects the axial magnetic fields of the at least two sensor magnets. The at least two sensor magnets are magnetized diametrically. The at least one Hall sensor is arranged to detect the polarities of each of the at least two sensor magnets during one revolution of the permanent-magnetic motor rotor.
Public/Granted literature
- US20200251965A1 ELECTRIC FLUID PUMP FOR A MOTOR VEHICLE Public/Granted day:2020-08-06
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