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US3239702A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-disk electromagnetic power machinery

Assignee: High Voltage Engineering Corp
•
Filing: 1960-06-29
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Granted: 1966-03-08
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Expires: 1980-06-29
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Abstract

Abstract 936,694. Dynamo-electric machines. HIGH VOLTAGE ENGINEERING CORPORATION. June 26, 1961 [June 29, 1960], No. 22987/61. Class 35. An induction generator, Figs. 8-10, includes a shaft 1 upon which are mounted a number of magnetic rotor discs 2 arranged to rotate between segmental stators 3A which form an elongated magnetic circuit, or circuits, extending parallel with the shaft so that the flux lines are intersected by the rotor disc upon rotation of the shaft, the stators being linked by armature coils arranged in series connection and interspersed between layers of insulating material. Referring to the detailed cylindrical section, Fig. 1, each segmental stator includes two pair of polepieces 3 and end pieces 4. Within each rotor disc, Fig. 2, are mounted angularly spaced sectors 5 of magnetic material. The polepieces 3 and end pieces 4 are provided with teeth 6, which are angularly spaced such that when sectors 5 in disc 2 are in alignment with the teeth 6 of one polepiece in each pair, there are no sectors 5 in alignment with the other of the pair. Thus as the shaft rotates the flux swings back and forth between the two stators in each pair. Armature coils 7 separated by insulating layers 8 are wound about each polepiece, there being three layers to each coil. The armature coils between adjacent discs are helically connected in series, the connections including, if required, rectifiers to produce a D.C. output, Fig. 4 (not shown). Energization of the polepieces is provided by field coils 9 associated with each pair of polepieces, energization of these coils being provided by excitation coils 11 surrounding each polepiece. In a moving pole generator, Fig. 5, a larger number of magnetic circuits are provided, comprising stator poles 13, end pieces 17 and rotor sectors 15. The rotor sector 15 are either permanently magnetized in an axial direction, or else field coils 16 provided. Armature coils 17 are provided to link the stator poles. The rotors and stators may be interchanged, and the machine of Fig. 1 may also be operated as a synchronous motor by feeding alternate current into the first and third row of armature coils. Similarly, if D.C. pulses are fed in the machine may be stepped round in a controlled manner. The rotating discs are mounted on an insulating shaft, Fig. 7 (not shown), comprising alternate cup-shaped insulating and metal sections as described in Specification 921,399 [Group XXIV].

Inventors

  • 👤 Graaff Robert J Van De

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:37
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K19/00; H02K19/16; H02K19/22; H02K19/24; H02K99/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 204 words
ELECTROMAGNETIC MACHINERY COMPRISING IN COMBINATION A ROTATABLE INSULATING SHAFT, A SERIES OF AXIALLY SPACED DISKS MOUNTED ON SAID SHAFT, AT LEAST ONE ELONGATED MAGNECTIC CIRCUIT LYING GENERALLY PARALLEL AND CLOSE TO SAID SHAFT, WHEREBY THE MAGNETIC FLUX LINES OF SAID MAGNETIC CIRCUIT ARE INTERSECTED BY SAID DISKS, SAID MAGNETIC CIRCUIT INCLUDING A FIRST AXIALLY-SPACED SERIES OF PLURALITIES OF ANGULARLY SPACED MAGNETIC SECTORS, SAID DISKS INCLUDING MAGNETIC SECTORS WHICH FORM A SECOND AXIALLY-SPACED SERIES OF PLURALITIES OF ANGULARLY SPACED MAGNETIC SECTORS INTERSPERSED AMONG SAID FIRST SERIES, A SERIES OF LAYERS OF INSULATION INTRODUCED IN SAID MAGNETIC CIRCUIT TRANSVERSE TO THE AXIS OF SAID SHAFT, A SERIES OF ARMATURE COILS LINKING SAID MAGNETIC CIRCUIT AND INTERSPERSED AMONG SAID LAYERS OF INSULATION WITH SERIES CONNECTIONS ACROSS SAID LAYERS OF INSULATION, WHEREBY, UPON ROTATION OF SAID SHAFT WITH RESPECT TO SAID FIRST SERIES, THE MOVEMENT OF MAGNETIC SECTORS IN SAID SECOND SERIES BETWEEN MAGNETIC SECTORS OF SAID FIRST SERIES CAUSES A VARIATION IN THE MAGNETIC FLUX LINKED BY SAID ARMATURE COILS, A SERIES OF SOURCES OF MAGNETOMOTIVE FORCE INTERSPERSED AMONG SAID DISKS, AND MEANS FOR ROTATING SAID SHAFT WITH RESPECT TO SAID FIRST SERIES WHEREBY MECHANICAL POWER USED IN PRODUCING SUCH ROTATION IS TRANSFORMED INTO HIGH-VOLTAGE ELECTRICAL ENERGY.
Claim 2
Dependent Claim 204 words
ELECTROMAGNETIC MACHINERY COMPRISING IN COMBINATION A ROTATABLE INSULATING SHAFT, A SERIES OF AXIALLY SPACED DISKS MOUNTED ON SAID SHAFT, AT LEAST ONE ELONGATED MAGNECTIC CIRCUIT LYING GENERALLY PARALLEL AND CLOSE TO SAID SHAFT, WHEREBY THE MAGNETIC FLUX LINES OF SAID MAGNETIC CIRCUIT ARE INTERSECTED BY SAID DISKS, SAID MAGNETIC CIRCUIT INCLUDING A FIRST AXIALLY-SPACED SERIES OF PLURALITIES OF ANGULARLY SPACED MAGNETIC SECTORS, SAID DISKS INCLUDING MAGNETIC SECTORS WHICH FORM A SECOND AXIALLY-SPACED SERIES OF PLURALITIES OF ANGULARLY SPACED MAGNETIC SECTORS INTERSPERSED AMONG SAID FIRST SERIES, A SERIES OF LAYERS OF INSULATION INTRODUCED IN SAID MAGNETIC CIRCUIT TRANSVERSE TO THE AXIS OF SAID SHAFT, A SERIES OF ARMATURE COILS LINKING SAID MAGNETIC CIRCUIT AND INTERSPERSED AMONG SAID LAYERS OF INSULATION WITH SERIES CONNECTIONS ACROSS SAID LAYERS OF INSULATION, WHEREBY, UPON ROTATION OF SAID SHAFT WITH RESPECT TO SAID FIRST SERIES, THE MOVEMENT OF MAGNETIC SECTORS IN SAID SECOND SERIES BETWEEN MAGNETIC SECTORS OF SAID FIRST SERIES CAUSES A VARIATION IN THE MAGNETIC FLUX LINKED BY SAID ARMATURE COILS, A SERIES OF SOURCES OF MAGNETOMOTIVE FORCE INTERSPERSED AMONG SAID DISKS, AND MEANS FOR ROTATING SAID SHAFT WITH RESPECT TO SAID FIRST SERIES WHEREBY MECHANICAL POWER USED IN PRODUCING SUCH ROTATION IS TRANSFORMED INTO HIGH-VOLTAGE ELECTRICAL ENERGY.

References Cited (Backward Citations)

US911081A Cited
US1301077A Cited
US1211617A Cited
US1315782A Cited
US2307604A Cited
US2479589A Cited
US2599575A Cited
US2497113A Cited
US2743375A Cited
US2864964A Cited
US2892144A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-03-07 1969-09-06 1970-03-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-03-07 1973-09-06 1974-03-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-03-07 1977-09-06 1978-03-08 $7700.00 Window Closed / Lapsed

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