Title:
PUMP UNIT
Document Type and Number:
WIPO Patent Application WO/2012/062650
Kind Code:
A3
Abstract:
The invention relates to a pump unit having an electric motor comprising a stator (12), a rotor (4) and a can (14) arranged between the stator (12) and the rotor (4), and at least one impeller (6) connected to the rotor. The electric motor comprises an electronic motor system designed for the electronic commutation of the electric motor, and the electric motor and the commutation are designed such that when the rotor space inside the can (14) and/or the impeller (6) are not filled with liquid, the rotor comes to a standstill.
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Inventors:
BLASER GEORG (DE)
POLZER RUDOLF (DE)
POLZER RUDOLF (DE)
Application Number:
PCT/EP2011/069340
Publication Date:
May 10, 2013
Filing Date:
November 03, 2011
Export Citation:
Assignee:
GRUNDFOS HOLDING AS (DK)
BLASER GEORG (DE)
POLZER RUDOLF (DE)
BLASER GEORG (DE)
POLZER RUDOLF (DE)
International Classes:
F04D15/02; F04D13/06; F04D29/046; H02K1/14; H02K21/16; H02K21/24; H02K5/10; H02K5/128; H02K5/173; H02K5/22; H02K11/00
Domestic Patent References:
WO2008150334A1 | 2008-12-11 | |||
WO2009006927A1 | 2009-01-15 |
Foreign References:
EP1203886A2 | 2002-05-08 | |||
US20020098089A1 | 2002-07-25 | |||
US4043706A | 1977-08-23 | |||
EP2040350A2 | 2009-03-25 | |||
DE2262867A1 | 1974-07-04 |
Attorney, Agent or Firm:
VOLLMANN & HEMMER (Lübeck, DE)
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