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Title:
SEPARATING CAN OF A MAGNETIC COUPLING, IN PARTICULAR OF A MAGNETIC COUPLING PUMP
Document Type and Number:
WIPO Patent Application WO/2012/122963
Kind Code:
A3
Abstract:
The invention relates to a magnetic coupling, in particular a magnetic coupling pump, which comprises an inner rotor and an outer rotor between which a separating can (1) is arranged, which has a flange (2). Said flange (2) can be fastened to a coupling component (6), preferably to a housing cover (6), by means of a mating flange (7). The separating can (1) is made of a ceramic, wherein the coupling component (6) and the mating flange (7) are made of a metallic material. Harmful stress transitions or stress peaks in the preloading of the connection and thermal material expansions can cause damage to the separating can, in particular to the flange of said separating can, or can cause relaxations that can lead to leaks. Therefore, according to the invention, a spherical elevation (13) is arranged on the flange (2), which spherical elevation engages in a corresponding spherical recess (14). Also according to the invention, a compensating element (17) is arranged between the flange (2) and the mating flange (7). The compensating element (17) can have a spherical recess (14) on one of the end faces (18, 19) of the compensating element, said spherical recess corresponding to the spherical elevation (13).

Inventors:
SCHNEIDER GUENTHER (DE)
WESTIB MICHAEL (DE)
KOEP DIRK (DE)
Application Number:
DE2012/000206
Publication Date:
December 20, 2012
Filing Date:
March 01, 2012
Export Citation:
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Assignee:
RUHRPUMPEN GMBH (DE)
SCHNEIDER GUENTHER (DE)
WESTIB MICHAEL (DE)
KOEP DIRK (DE)
International Classes:
H02K5/128; F04D13/02; F16L23/032; F16L23/16; H02K49/10
Domestic Patent References:
WO2010136019A12010-12-02
Foreign References:
US3270910A1966-09-06
EP1188970A22002-03-20
FR923196A1947-06-30
DE102006056819A12008-06-05
Attorney, Agent or Firm:
WETTLAUFER, Frank (Patentanwälte Dr. Niemann & Wettlaufer, Stockumer Str. 58a, Witten, 58453, DE)
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