Device for the magnetic transmission of torque

• US 3,354,833 A
• Filed: 11/26/1965
• Issued: 11/28/1967
• Est. Priority Date: 11/27/1964
• Status: Expired due to Term

• Current Assignee: Nikolaus Laing
• Original Assignee: Nikolaus Laing
• Inventors: NIKOLAUS LAING
• Application Number:
  US04/509,714
• Time in Patent Office: 732 Days
• US Class Current: 417/353
• CPC Class Codes: F04D 13/026 Details of the bearings
• CPC Class Codes: F04D 29/0467 Spherical bearings
• CPC Class Codes: F16C 25/045 with magnetic means to preload the bearing
• CPC Class Codes: H02K 49/104 Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
• CPC Class Codes: H02K 49/108 with an axial air gap
• CPC Class Codes: H02K 5/128 using air-gap sleeves or air-gap discs

Claims

12. FLUID PUMPING MEANS INCLUDING A MAGNETIC MACHINE OR COUPLING FOR GENERATING A ROTATING MAGNETIC FIELD;

SAID MACHINE OR COUPLING INCLUDING A FIRST FERROMAGNETIC MEMBER DEFINING AN AXIS AND INTERIOR SURFACES THEREABOUT, A SECOND FERROMAGNETIC MEMBER DEFINING AN AXIS AND EXTERIOR SURFACES THEREABOUT, MEANS MOUNTING THE SECOND MEMBER SO THAT ITS AXIS INTERSECTS THE AXIS OF THE FIRST MEMBER IN A FIXED POINT, SO THAT RELATIVE TO THE FIRST MEMBER IT CAN ROTATE ABOUT ITS AXIS AND HAVE LIMITED UNIVERSAL MOVEMENT ABOUT SAID FIXED POINT AND SO THAT SAID INTERIOR AND EXTERIOR SURFACES ARE LOCATED FOR PASSAGE OF MAGNETIC FLUX BETWEEN THEM, SAID MEMBERS EACH COMPRISING AN EQUAL NUMBER OF POLE SEGMENTS OF ALTERNATING POLARITY FORMING SAID SURFACES AND HAVING CENTRES OF MAGNETIC ACTION LYING IN A PLANE NORMAL TO THE RESPECTIVE AXIS OF ROTATION, THE PLANES OF BOTH MEMBER LYING TO THE SAME SIDE OF THE FIXED POINTED WITH THAT OF THE SECOND MEMBER NEARER THERETO THAN THAT OF THE FIRST MEMBER;

AND SAID FLUID PUMPING MEANS COMPRISING AN ELECTRIC MOTOR, SAID FIRST MEMBER BEING MOUNTED ON THE SHAFT OF SAID MOTOR FOR ROTATION THEREWITH AND DEFINING A SUBSTANTIALLY HEMISPHERICAL INNER CONTOUR, A SUBSTANTIALLY HEMISPHERICAL PARTITION SECURED IN SPACED RELATION FROM SAID CONTOUR, SAID SECOND MEMBER BEING MOUNTED FOR ROTATION ON A POINT BEARING SECURED ON SAID PARTITION COAXIALLY WITH SAID SHAFT, SAID SECOND MEMBER FURTHER COMPRISING MEANS CONSTITUTING A PUMP IMPELLER FOR COOPERATING WITH GUIDE MEANS COMPRISING A PUMP CASING INCLUDING INLET AND OUTLET DUCTS.