US3683249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric machine arrangement combining electromagnetic coupling with electric rotating machine
Assignee: Individual
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Filing: 1970-07-09
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Granted: 1972-08-08
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Expires: 1990-07-09
Abstract
Abstract When an electromagnetic coupling is connected mechanically with an electric rotating machine having a stator, for instance a synchronous motor, a cage rotor type or wound rotor type induction motor etc., and the said electromagnetic coupling is connected electrically with the said electric rotating machine through a phase sequence change over switching device, further the electromagnetic coupling combined mechanically with the rotor of the electric rotating machine drives a load, and the other rotor of the electromagnetic coupling is driven by a driving machine, the electric machine arrangement has such advantages as shown by (1) obtaining power transmitting devices with operation similar to reduction gears which transmit outputs of other driving machines to loads; (2) possibility of driving one rotor of electromagnetic coupling in direction opposite to the rotation of the other rotor; and so forth. If the mechanical combination between the rotor of the electromagnetic coupling and the rotor of the electric rotating machine is made by using a rotor in common for the electromagnetic coupling and for the electric rotating machine, the electric machine arrangement becomes compact.
Inventors
- 👤 Fukuo Shibata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:10
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/48; H; H02; H02K; H02K51/00; H02P; H02P29/00; H02P29/0016; H02P29/0027; B60K6/22; B60K6/26; B60K2006/262; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
225 words
An electric machine arrangement which has a combination of: an electromagnetic coupling having two rotors which rotate with respect to each other and one of which is provided with an armature winding; an electric rotating machine having a stator, a rotor and an armature winding in which alternating current flows; mechanical combination of one of the said two rotors of the said electromagnetic coupling with the said rotor of the said electric rotating machine; and electric connection between the said armature winding of the said electromagnetic coupling and the said armature winding of the said electric rotating machine through a phase sequence change over switching device; wherein the rotor of the electromagnetic coupling combined mechanically with the rotor of the electric rotating machine drives a load, and the other rotor of the electromagnetic coupling is driven by a driving machine, further, the said mechanical combination between the rotor of the electromagnetic coupling and the rotor of the electric rotating machine is made by an arrangement of a rotor which is provided with material of a magnetic circuit for the electromagnetic coupling in its inner face and is provided with material of a magnetic circuit for the electric rotating machine in its outer face and which rotates in a space between the stator of the electric rotating machine and the other rotor of the electromagnetic coupling.
Claim 2
Dependent Claim
225 words
An electric machine arrangement which has a combination of: an electromagnetic coupling having two rotors which rotate with respect to each other and one of which is provided with an armature winding; an electric rotating machine having a stator, a rotor and an armature winding in which alternating current flows; mechanical combination of one of the said two rotors of the said electromagnetic coupling with the said rotor of the said electric rotating machine; and electric connection between the said armature winding of the said electromagnetic coupling and the said armature winding of the said electric rotating machine through a phase sequence change over switching device; wherein the rotor of the electromagnetic coupling combined mechanically with the rotor of the electric rotating machine drives a load, and the other rotor of the electromagnetic coupling is driven by a driving machine, further, the said mechanical combination between the rotor of the electromagnetic coupling and the rotor of the electric rotating machine is made by an arrangement of a rotor which is provided with material of a magnetic circuit for the electromagnetic coupling in its inner face and is provided with material of a magnetic circuit for the electric rotating machine in its outer face and which rotates in a space between the stator of the electric rotating machine and the other rotor of the electromagnetic coupling.
Claim 3
Dependent Claim
51 words
An electric machine arrangement as claimed in claim 1, wherein the electric rotating machine has pole change windings, and the electric connecTion is made between the armature winding of the electromagnetic coupling and the pole change armature windings of the electric rotating machine through the phase sequence change over switching device.
Claim 4
Dependent Claim
50 words
An electric machine arrangement as claimed in claim 1, wherein the electromagnetic coupling has pole change windings, and the electric connection is made between the pole change armature windings of the electromagnetic coupling and the armature winding of the electric rotating machine through the phase sequence change over switching device.
Claim 5
Dependent Claim
33 words
An electric machine arrangement as claimed in claim 1, wherein a frequency converter is connected electrically between the armature winding of the electromagnetic coupling and the armature winding of the electric rotating machine.
Claim 6
Dependent Claim
35 words
An electric machine arrangement as claimed in claim 1, wherein the armature winding of the electromagnetic coupling can be connected electrically with an armature winding of an alternating current generator driven by another driving machine.
Claim 7
Dependent Claim
139 words
An electric machine arrangement as claimed in claim 2, wherein the direction of rotation of the rotor of the electric rotating machine can be same as the direction of rotation of the rotor of the electromagnetic coupling driven by the driving machine by connecting electrically the armature winding of the electromagnetic coupling with one of the pole change armature windings of the electric rotating machine through the phase sequence change over switching device, and the direction of rotation of the rotor of the electric rotating machine can be opposite to the direction of rotation of the rotor of the electromagnetic coupling driven by the driving machine by connecting electrically the armature winding of the electromagnetic coupling with the other of the said pole change armature windings of the electric rotating machine through the phase sequence change over switching device.
Claim 8
Dependent Claim
139 words
An electric machine arrangement as claimed in claim 3, wherein the direction of rotation of the rotor of the electric rotating machine can be same as the direction of rotation of the rotor of the electromagnetic coupling driven by the driving machine by connecting electrically the armature winding of the electric rotating machine with one of the pole change armature windings of the electromagnetic coupling through the phase sequence change over switching device, and the direction of rotation of the rotor of the electric rotating machine can be opposite to the direction of rotation of the rotor of the electromagnetic coupling driven by the driving machine by connecting electrically the armature winding of the electric rotating machine with the other of the said pole change armature windings of the electromagnetic coupling through the phase sequence change over switching device.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |