US3831049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for reducing losses in transmission systems employing electric unipolar machines with liquid-metal contacts
Assignee: Individual
•
Filing: 1972-04-06
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Granted: 1974-08-20
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Expires: 1992-04-06
Abstract
Abstract A method of reducing losses in electric unipolar transmissions is disclosed, the transmission having at least one first and one second coaxially interconnected unipolar electric machines each having at least two working current conductors. One of the current carrying conductors of the first machine is rotated jointly with one of the current carrying conductors of the second machine at the same speed and in the same direction, while the other working current conductor of the first machine is rotated in the same direction but at an increased speed. The other working conductor of the second machine rotates under the action of the magnetic fields set up during operation of the transmission system. An apparatus for carrying out the above method is also disclosed.
Inventors
- 👤 B Korotenko
- 👤 V Korotenko
- 👤 P Shtepa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:13
CPC Classifications
H; H02; H02K; H02K31/00; H02K31/04; H02K49/00; H02K49/12; H02K51/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
210 words
An electric unipolar transmission system comprising: at least one first and one second coaxially arranged electric unipolar machines with liquid-metal contacts and means for connecting said machines into a generator-motor system, each of said machines having a power circuit means consisting of at least two working current conductors electrically interconnected by means of liquid metal contacts and an associated working current and electromagnetic field generated during operation of the system; means for mechanically connecting one of said workiNg current conductors of said first unipolar machine with one of the working current conductors of said second unipolar machine; drive means for rotating said mechanically connected working conductors; a first shaft means connected to the other one of said working current conductors of said first unipolar machine, said drive means also causing said other one of said working current conductors to rotate in the same direction as said one of said working current conductors of said first unipolar machines but at a higher speed; a second shaft means connected to the ohter one of said working current conductors of said second unipolar machine, said other one of said working current conductors rotating during operation of the system at a speed determined by variation in the magnetic field of said second unipolar machine.
Claim 2
Dependent Claim
210 words
An electric unipolar transmission system comprising: at least one first and one second coaxially arranged electric unipolar machines with liquid-metal contacts and means for connecting said machines into a generator-motor system, each of said machines having a power circuit means consisting of at least two working current conductors electrically interconnected by means of liquid metal contacts and an associated working current and electromagnetic field generated during operation of the system; means for mechanically connecting one of said workiNg current conductors of said first unipolar machine with one of the working current conductors of said second unipolar machine; drive means for rotating said mechanically connected working conductors; a first shaft means connected to the other one of said working current conductors of said first unipolar machine, said drive means also causing said other one of said working current conductors to rotate in the same direction as said one of said working current conductors of said first unipolar machines but at a higher speed; a second shaft means connected to the ohter one of said working current conductors of said second unipolar machine, said other one of said working current conductors rotating during operation of the system at a speed determined by variation in the magnetic field of said second unipolar machine.
Claim 3
Dependent Claim
23 words
An electric unipolar transmission according to claim 1, wherein said working current conductors of said electric unipolar machines consist of armatures and reactors.
Claim 4
Dependent Claim
21 words
An electric unipolar transmission according to claim 2, wherein said mechanically connected current conductors of said electric unipolar machines, are reactors.
Claim 5
Dependent Claim
21 words
An electric unipolar transmission according to claim 2, wherein said mechanically connected current conductors of said electric unipolar machines, are armatures.
Claim 6
Dependent Claim
35 words
An electric unipolar transmission according to claim 2, wherein said mechanically connected current conductors of said electric unipolar machines, connected to, are the armature of said first machine and the reactor of said second machine.
Claim 7
Dependent Claim
35 words
An electric unipolar transmission according to claim 2, wherein said transmission system is enclosed within a casing means which transmits rotation from said drive means to said mechanically connected current conductors of said electric machines.
Claim 8
Independent Claim
160 words
A method for reducing losses in liquid-metal contacts of electric unipolar transmission systems having at leat a first and second unipolar machine arranged coaxially and connected into a generator-motor system, each machine including in the power circuit thereof two working current conductors electrically interconnected by means of liquid metal contacts and having an associated working current and electromagnetic field generated during operation of the system, the method including the steps of: rotating one of said working conductors of said first machine and one of said working current conductors of said second machine, in the same direction and at the same speed; rotating the other one of said working current conductors of said first machine in the same direction as said one of said working conductors of said first machine and said second machine respectively but at a higher speed, while the other working conductor of said second machine rotates under the action of said associated working current and electromagnetic field.
Claim 9
Independent Claim
160 words
A method for reducing losses in liquid-metal contacts of electric unipolar transmission systems having at leat a first and second unipolar machine arranged coaxially and connected into a generator-motor system, each machine including in the power circuit thereof two working current conductors electrically interconnected by means of liquid metal contacts and having an associated working current and electromagnetic field generated during operation of the system, the method including the steps of: rotating one of said working conductors of said first machine and one of said working current conductors of said second machine, in the same direction and at the same speed; rotating the other one of said working current conductors of said first machine in the same direction as said one of said working conductors of said first machine and said second machine respectively but at a higher speed, while the other working conductor of said second machine rotates under the action of said associated working current and electromagnetic field.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |