Title:
MOTOR AND METHOD FOR DRIVING A PUMP
Document Type and Number:
WIPO Patent Application WO/2014/180737
Kind Code:
A3
Abstract:
The invention relates to a motor (1) for driving a pump (2), in particular a coolant pump, - having an electromagnet (3) for generating a first magnetic field by means of an electric current flowing through the electromagnet (3), - having a permanent magnet (4) for generating a second magnetic field by means of a ferrite contained in the permanent magnet (4), and - having a motor control unit (7), which controls a current strength loading the electromagnet (3) depending on a measured temperature. The intention in particular is to thereby avoid irreversible demagnetisation of the permanent magnet (4).
Inventors:
HELMIS MARTIN (DE)
NEUBAUER ANDREAS (DE)
NEUBAUER ANDREAS (DE)
Application Number:
PCT/EP2014/058898
Publication Date:
August 06, 2015
Filing Date:
April 30, 2014
Export Citation:
Assignee:
MAHLE INT GMBH (DE)
International Classes:
H02P29/00
Foreign References:
| DE10045291A1 | 2002-03-21 | |||
| CN202520513U | 2012-11-07 |
Attorney, Agent or Firm:
BRP RENAUD UND PARTNER MBB RECHTSANWÄLTE PATENTANWÄLTE STEUERBERATER (Stuttgart, DE)
Download PDF:
Previous Patent: DAMPING ECCENTRIC MOTION LINK IN CEPS USAGE
Next Patent: METHOD AND SYSTEM FOR CUTTING A PRE-CUT LINE IN LABELS OR LABEL WEBS
Next Patent: METHOD AND SYSTEM FOR CUTTING A PRE-CUT LINE IN LABELS OR LABEL WEBS