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1. WO1996004996 - CENTRIFUGE CONSTRUCTION HAVING CENTRAL STATOR

Publication Number WO/1996/004996
Publication Date 22.02.1996
International Application No. PCT/US1995/010100
International Filing Date 08.08.1995
Chapter 2 Demand Filed 08.03.1996
IPC
B04B 9/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
BCENTRIFUGES
9Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
02Electric motor drives
04Direct drive
H02K 7/08 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
08Structural association with bearings
H02K 7/14 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
14Structural association with mechanical loads, e.g. with hand-held machine tools or fans
CPC
B04B 9/04
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
BCENTRIFUGES
9Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
02Electric motor drives
04Direct drive
H02K 7/088
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
08Structural association with bearings
086radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
088radially supporting the rotor directly
H02K 7/14
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
14Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Applicants
  • PIRAMOON TECHNOLOGIES, INC. [US]/[US]
Inventors
  • PIRAMOON, Alireza
Agents
  • HYNES, William, Michael
Priority Data
08/288,38710.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CENTRIFUGE CONSTRUCTION HAVING CENTRAL STATOR
(FR) CENTRIFUGEUSE A STATOR CENTRAL
Abstract
(EN)
A centrifuge construction is disclosed in which a centrally located stator (S) directly drives a peripheral ring shaped centrifuge rotor (R). In the preferred embodiment, a centrifuge drive is disclosed which includes a stationary, central and usually cylindrical stator (S) having stationary electrical windings (40A-40D) for generating a rotating and driving magnetic field. The ring shaped centrifuge rotor (R) is supported by at least one bearing (G1, G2) relative to the stator (S) and includes a large central aperture (A) defined by the inside of the ring which enables the rotor (R) to fit over and rotate about the stator (S). At portions of the rotor (R) adjoining the stator (S), the rotor (R) is constructed from materials which are entrained by the rotating magnetic field. The centrifuge rotor (R) containing samples (28) undergoing centrifugation is directly driven from the stator (S) by entrainment of the rotor (R) with the rotating and driving magnetic field generated from the electrical windings (40A-40D) of the stator (S).
(FR)
On décrit une centrifugeuse dans laquelle un stator (S), disposé au centre, entraîne directement un rotor (R) de centrifugeuse périphérique de forme annulaire. Selon la variante préférée, on décrit un entraînement de centrifugeuse qui comprend un stator (S) central, de forme cylindrique habituelle, doté d'enroulements électriques (40A-40B) fixes destinés à engendrer un champ magnétique tournant d'entraînement. Le rotor (R) de centrifugeuse, de forme annulaire, prend appui, par l'intermédiaire d'un palier (G1, G2), au moins sur le stator (S) et présente une grande ouverture centrale (A) définie par l'intérieur de l'anneau, ce qui permet à ce rotor (R) de s'adapter sur le stator (S) et de tourner autour de lui. Les parties du rotor (R) contiguës au stator (S) sont constituées de matériaux susceptibles d'être entraînés par le champ magnétique tournant. Le rotor (R) de centrifugeuse renfermant des échantillons (28) à centrifuger est entraîné directement depuis le stator (S) par le champ magnétique tournant d'entraînement engendré par les enroulements électriques (40A-40D) dudit stator (S).
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