Patent US3767950A successfully refreshed from Google Patents.
US3767950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductor machine
Assignee: Individual
•
Filing: 1972-03-10
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Granted: 1973-10-23
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Expires: 1992-03-10
Abstract
Abstract An electromechanical converter having electrical reduction, and made in the form of an inductor machine operating on the basis of utilization of tooth harmonics of the magnetic field. The inductor machine consists of a stator having at least one armature winding and a field winding, and a rotor, said stator having N zones, in each of which a relative arrangement of the stator and rotor teeth is identical; the invention is characterized in that said field winding consists of a multicoil winding with p pole pairs, while at least one armature winding is provided with a number of pole pairs equal to (N+p), (N-P). The use of the distributed field winding having the above-mentioned ratio between numbers of teeth permits to obtain substantially sinusoidal output voltage waveform in the generator mode and high uniformity of the rotational speed in the motor mode.
Inventors
- 👤 A Ainvarg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:53
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/02; H02K19/10; H02K19/103; H02K19/16; H02K19/22; H02K19/24; H02K47/00; H02K47/18; H02K47/22; H02K47/24; H02K99/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
176 words
An inductor machine having a shaft and comprising in combination, a stator having a plurality of teeth and three multiphase windings; a rotor having teeth which are uniformly distributed along its circumference, said stator and rotor having magnetic structure means which define a number of repeatable sections of said machine, each repeatable section having the same relative arrangement of said stator and rotor teeth, while a path of maximum magnetic conductivity moves along the entire length of each repeatable section as the rotor turns by one tooth division; one of said three multiphase windings having a predetermined number of pole pairs; another one of said three multiphase windings having a number of pole pairs which is equal to the number of pole pairs of said one of said three multiphase windings plus the number of said repeatable sections; the third one of said three multiphase windings having a number of pole pairs which is equal to the number of pole pairs of said one of said three multiphase windings minus the number of said repeatable sections.
Claim 2
Dependent Claim
176 words
An inductor machine having a shaft and comprising in combination, a stator having a plurality of teeth and three multiphase windings; a rotor having teeth which are uniformly distributed along its circumference, said stator and rotor having magnetic structure means which define a number of repeatable sections of said machine, each repeatable section having the same relative arrangement of said stator and rotor teeth, while a path of maximum magnetic conductivity moves along the entire length of each repeatable section as the rotor turns by one tooth division; one of said three multiphase windings having a predetermined number of pole pairs; another one of said three multiphase windings having a number of pole pairs which is equal to the number of pole pairs of said one of said three multiphase windings plus the number of said repeatable sections; the third one of said three multiphase windings having a number of pole pairs which is equal to the number of pole pairs of said one of said three multiphase windings minus the number of said repeatable sections.
Claim 3
Dependent Claim
43 words
An inductor machine according to claim 1, wherein the ratio between the greatest number of pole pairs of one of said three multiphase windings and the smallest number of pole pairs of one of said three multiphase windings is equal to an integer.
Claim 4
Dependent Claim
136 words
An inductor machine having a shaft and comprising, in combination, a stator having a plurality of teeth and two multiphase windings and one single-phase winding; a rotor having teeth which are uniformly distributed along its circumference; said stator and rotor having magnetic structure means which define a number of repeatable sections of said machine, each repeatable section having the same relative arrangement of said stator and rotor teeth, while a path of maximum magnetic conductivity moves along the entire length of each repeatable section as the rotor turns by one tooth division; one of said two multiphase windings having a number of pole pairs equal to the number of said repeatable sections, while the other one of said two multiphase windings has twice the number of pole pairs of said one of said two multiphase windings.
Claim 5
Dependent Claim
136 words
An inductor machine having a shaft and comprising, in combination, a stator having a plurality of teeth and two multiphase windings and one single-phase winding; a rotor having teeth which are uniformly distributed along its circumference; said stator and rotor having magnetic structure means which define a number of repeatable sections of said machine, each repeatable section having the same relative arrangement of said stator and rotor teeth, while a path of maximum magnetic conductivity moves along the entire length of each repeatable section as the rotor turns by one tooth division; one of said two multiphase windings having a number of pole pairs equal to the number of said repeatable sections, while the other one of said two multiphase windings has twice the number of pole pairs of said one of said two multiphase windings.
Claim 6
Dependent Claim
28 words
An inductor machine according to claim 1 wherein said magnetic structure means comprise bars of magnetic material laminated in layers and arranged along the shaft of the machine.
Claim 7
Dependent Claim
28 words
An inductor machine according to claim 3 wherein said magnetic structure means comprise bars of magnetic material laminated in layers and arranged along the shaft of the machine.
Claim 8
Dependent Claim
23 words
An inductor type machine according to claim 3 wherein said single-phase winding comprises an annular coil coaxial with the shaft of the machine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |