US3846653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unipolar electric transmission
Assignee: Individual
•
Filing: 1973-03-26
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Granted: 1974-11-05
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Expires: 1993-03-26
Abstract
Abstract A unipolar electric transmission adapted to provide smooth transitional speed control, comprising two coaxial acyclic machines with liquid-metal slip rings, which are combined into an adjustable-voltage system. The power circuit of each acyclic machine includes at least two operating current conductors, and with one of the operating current conductors of one of the acyclic machines being fixed to one of the operating current conductors of the second acyclic machine, both being connected to a drive which imparts rotation to the operating current conductors independently of the rotation of shafts. The shafts, in turn, are connected to other operating current conductors of respective acyclic machines. Used as the operating current conductors are the armature and reactor of the first and second acyclic machines. Used as the interconnected operating current conductors may be either the armatures or reactors of the acyclic machines. Besides, the unipolar electric transmission is provided with a device for supplying liquid metal to the liquid-metal slip rings. The device has two stages of intake components arranged as pipes whose intake edges are placed at a greater radial distance from the axis of the transmission than their outlet edges. Thus, liquid metal fed from a cavity enclosed by a casing of the transmission passes through the two stages of the intake components and is then distributed among the slip rings of the unipolar transmission.
Inventors
- 👤 B Korotenko
- 👤 V Korotenko
- 👤 P Shtepa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:15
CPC Classifications
H; H02; H02K; H02K31/00; H02K31/04; H02K49/00; H02K49/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
219 words
A unipolar electric transmission comprising at least two coaxial arcylic machines with liquid-metal slip rings, which are combined into an adjustable-voltage system; a power circuit of each said acyclic machine including two operating current conductors, each formed of respectively a rotatable armature and a reactor; the armature of one of said acyclic machines connected to the armature of the other acyclic machine for joint rotation thereof; shafts for said acyclic machines, each said shaft being coupled to the reactor of a respective acyclic machine for their rotation; a casing for transmitting rotation to the interconnected armatures of the acyclic machines; a device for supplying liquid metal to the liquid-metal slip rings, comprising first and second inlet conduits having the respective inlet ends thereof placed at a greater radial distance from the axis of the transmission than their respective outlet ends; said first inlet conduit being coupled to a rotary magnetic circuit of the generator of the unipolar transmission, and said second inlet conduit being coupled to the armatures of the unipolar transmission; the inlet end of the first inlet conduit being located within a cavity containing liquid metal which is enclosed by the casing of the transmission, and the outlet end of the first conduit communicating with an annular groove which engages the inlet end of the second conduit.
Claim 2
Dependent Claim
219 words
A unipolar electric transmission comprising at least two coaxial arcylic machines with liquid-metal slip rings, which are combined into an adjustable-voltage system; a power circuit of each said acyclic machine including two operating current conductors, each formed of respectively a rotatable armature and a reactor; the armature of one of said acyclic machines connected to the armature of the other acyclic machine for joint rotation thereof; shafts for said acyclic machines, each said shaft being coupled to the reactor of a respective acyclic machine for their rotation; a casing for transmitting rotation to the interconnected armatures of the acyclic machines; a device for supplying liquid metal to the liquid-metal slip rings, comprising first and second inlet conduits having the respective inlet ends thereof placed at a greater radial distance from the axis of the transmission than their respective outlet ends; said first inlet conduit being coupled to a rotary magnetic circuit of the generator of the unipolar transmission, and said second inlet conduit being coupled to the armatures of the unipolar transmission; the inlet end of the first inlet conduit being located within a cavity containing liquid metal which is enclosed by the casing of the transmission, and the outlet end of the first conduit communicating with an annular groove which engages the inlet end of the second conduit.
Claim 3
Dependent Claim
238 words
A unipolar electric transmission comprising at least two coaxial acyclic machines with liquid metal slip rings, which are combined into an adjustable-voltage system; a power circuit of each of said machines comprising two operating current conductors, each formed of respectively a rotatable armature and a reactor; said armature of one of said acyclic machines being coupled to the reactor of the other acyclic machine for joint forced rotation; shafts for said acyclic machines, each said shaft being coupled to the armature and reactor of a respective acyclic maChine for imparting rotation thereto; a casing for transmitting rotation to the intercoupled armature of one acyclic machine and reactor of the other acyclic machine; a device for supplying liquid metal to the liquid-metal slip rings, comprising first and econd liquid intake components each having inlet ends placed at a greater radial distance from the center axis of the transmission than their outlet end; said first intake component being coupled to a rotary magnetic circuit of a generator for the unipolar transmission, and the second intake component being fixed to the reactor of a motor for the transmission, which rotates jointly with the armature of the generator; the inlet end of the first intake component extending into a cavity containing liquid metal, and which is enclosed by the casing, and the outlet end of the first intake component communicating with an annular groove engaging the inlet end of the second component.
Claim 4
Dependent Claim
238 words
A unipolar electric transmission comprising at least two coaxial acyclic machines with liquid metal slip rings, which are combined into an adjustable-voltage system; a power circuit of each of said machines comprising two operating current conductors, each formed of respectively a rotatable armature and a reactor; said armature of one of said acyclic machines being coupled to the reactor of the other acyclic machine for joint forced rotation; shafts for said acyclic machines, each said shaft being coupled to the armature and reactor of a respective acyclic maChine for imparting rotation thereto; a casing for transmitting rotation to the intercoupled armature of one acyclic machine and reactor of the other acyclic machine; a device for supplying liquid metal to the liquid-metal slip rings, comprising first and econd liquid intake components each having inlet ends placed at a greater radial distance from the center axis of the transmission than their outlet end; said first intake component being coupled to a rotary magnetic circuit of a generator for the unipolar transmission, and the second intake component being fixed to the reactor of a motor for the transmission, which rotates jointly with the armature of the generator; the inlet end of the first intake component extending into a cavity containing liquid metal, and which is enclosed by the casing, and the outlet end of the first intake component communicating with an annular groove engaging the inlet end of the second component.
Claim 5
Dependent Claim
51 words
A unipolar electric transmission as claimed in claim 2, wherein the device for supplying liquid metal to the slip-rings comprises an additional pressure stage having an intake component coupled to the armature of the generator and supplying liquid metal to a liquid-metal slip ring between the armatures of the acyclic machines.
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |