Patent US3728600A successfully refreshed from Google Patents.
US3728600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for transmitting mechanical power from a driving machine to a load
Assignee: Individual
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Filing: 1971-06-16
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Granted: 1973-04-17
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Expires: 1991-06-16
Abstract
Abstract When an electromagnetic coupling having two rotors is connected mechanically with a direct current commutating machine, in such a way that a rotor is used in common as one of the two rotors of the electromagnetic coupling and as a rotor of the direct current commutating machine, the electric machine arrangement can be a power transmitting device which is of high efficiency and has a simple construction. If the rotor shaft of the direct current commutating machine is connected mechanically with a load, and the other rotor of the electromagnetic coupling is driven by a driving machine such as a prime mover, further rectifiers are electrically connected between armature windings of the direct current commutating machine and the electromagnetic coupling, the load can be controlled over a wide speed range.
Inventors
- 👤 F Shibata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:13
CPC Classifications
H; H02; H02K; H02K51/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
303 words
An arrangement for transmitting mechanical power from a driving machine to a load comprising in combination: an electromagnetic coupling having two rotors, called a first and a second rotor, which rotate with respect to each other and one of which is provided with an armature winding and the other of which is provided with a direct current winding; a magnetic member which has grooves burying the said armature winding of the electromagnetic coupling and which forms a magnetic circuit in one of the two rotors of the electromagnetic couling; another magnetic member forming a magnetic circuit which is made in the other rotor of the electromagnetic coupling by making the exciting current flow in the said direct current winding; a direct current commutating machine having a stator provided with field poles and a rotor provided with commutators and an armature winding; a magnetic member which has grooves burying the said armature winding of the direct current commutating machine and which forms a magnetic circuit in the rotor of the direct current commutating machine; wherein the said second rotor of the electromagnetic coupling is a rotor of which a circumferential inner part of a cylinder is provided with the said magnetic member forming the magnetic circuit in the second rotor of the said electromagnetic coupling and of which a circumferential outer part face of the cylinder is provided with the said magnetic member forming the magnetic circuit in the rotor of the said direct current commutating machine, and the said second rotor of the electromagnetic coupling is installed in a space between the stator of the direct current commutating machine and the first rotor of the electromagnetic coupling, further the first rotor of the electromagnetic coupling is driven by a rotary driving machine, and the second rotor of the electro-magnetic coupling drives a load.
Claim 2
Dependent Claim
303 words
An arrangement for transmitting mechanical power from a driving machine to a load comprising in combination: an electromagnetic coupling having two rotors, called a first and a second rotor, which rotate with respect to each other and one of which is provided with an armature winding and the other of which is provided with a direct current winding; a magnetic member which has grooves burying the said armature winding of the electromagnetic coupling and which forms a magnetic circuit in one of the two rotors of the electromagnetic couling; another magnetic member forming a magnetic circuit which is made in the other rotor of the electromagnetic coupling by making the exciting current flow in the said direct current winding; a direct current commutating machine having a stator provided with field poles and a rotor provided with commutators and an armature winding; a magnetic member which has grooves burying the said armature winding of the direct current commutating machine and which forms a magnetic circuit in the rotor of the direct current commutating machine; wherein the said second rotor of the electromagnetic coupling is a rotor of which a circumferential inner part of a cylinder is provided with the said magnetic member forming the magnetic circuit in the second rotor of the said electromagnetic coupling and of which a circumferential outer part face of the cylinder is provided with the said magnetic member forming the magnetic circuit in the rotor of the said direct current commutating machine, and the said second rotor of the electromagnetic coupling is installed in a space between the stator of the direct current commutating machine and the first rotor of the electromagnetic coupling, further the first rotor of the electromagnetic coupling is driven by a rotary driving machine, and the second rotor of the electro-magnetic coupling drives a load.
Claim 3
Dependent Claim
55 words
An arrangement as set forth in claim 1, in which the magnetic member forming the magnetic circuit of the first rotor of the electromagnetic coupling and the surface of the field poles of the direct current commutating machine exist together in a section perpendicular to a shaft of the first rotor of the electromagnetic coupling.
Claim 4
Dependent Claim
36 words
An arrangement as set forth in claim 1, in which rectifiers are electrically connected with an electric circuit between the armature winding of the electromagnetic coupling and the armature winding of the direct current commutating machine.
Claim 5
Dependent Claim
25 words
An arrangement as set forth in claim 1, in which a battery is electrically connected with the armature winding of the direct current commutating machine.
Claim 6
Dependent Claim
31 words
An arrangement as set forth in claim 4, in which a thyrister is electrically connected in the circuit between the battery and the armature winding of the direct current commutating machine.
Claim 7
Dependent Claim
25 words
An arrangement as set forth in claim 1, in which the field poles of the direct current commutating machine are excited by a voltage winding.
Claim 8
Dependent Claim
27 words
An arrangement as set forth in claim 3, in which the driving machine is a prime mover, and the load is a wheel of an electric car.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |