US3872335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating rectifier assembly for brushless exciters
Assignee: Westinghouse Electric Corp
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Filing: 1974-03-07
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Granted: 1975-03-18
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Expires: 1994-03-07
Abstract
Abstract Brushless excitation systems for alternating current generators include an alternating current exciter and a rotating rectifier assembly. In such a system, the rectifier diodes of the rectifier assembly are mounted on the rim of a wheel which rotates with the exciter armature member, and the leads from the exciter winding extend along the shaft and through openings in the wheel for connection to the diodes. Supporting means are provided for the leads consisting of an elastic tubular member such as an aluminum sleeve, which extends axially from the wheel and encloses the leads. The leads are supported radially against the inner surface of the tubular member which has sufficient elasticity to permit limited radial deflection of the leads to follow the wheel when it expands radially in operation.
Inventors
- 👤 Sigrud R Petersen
- 👤 Sui-Chun Ying
- 👤 August C Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:07
CPC Classifications
H; H10; H10W; H10W90/00; H02; H02K; H02K11/00; H02K11/04; H02K11/042
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
In a brushless excitation system including an alternating current exciter and a rotating rectifier assembly having a rectifier wheel supported for rotation with the exciter, said wheel having a radial web portion and a rim portion, rectifier means mounted on the rim portion of the wheel, a plurality of leads extending radially from the exciter and passing through openings in the web portion of the wheel for connection to said rectifier means, and means for supporting said leads comprising an elastic tubular member attached to the web portion of the wheel in position to encircle the leads, said tubular member extending axially over the leads and engaging the leads to support them in the radial direction.
Claim 2
Dependent Claim
116 words
In a brushless excitation system including an alternating current exciter and a rotating rectifier assembly having a rectifier wheel supported for rotation with the exciter, said wheel having a radial web portion and a rim portion, rectifier means mounted on the rim portion of the wheel, a plurality of leads extending radially from the exciter and passing through openings in the web portion of the wheel for connection to said rectifier means, and means for supporting said leads comprising an elastic tubular member attached to the web portion of the wheel in position to encircle the leads, said tubular member extending axially over the leads and engaging the leads to support them in the radial direction.
Claim 3
Dependent Claim
28 words
The combination defined in claim 1 in which said tubular member has a plurality of longitudinal slots in its inner surface, said leads being disposed in said slots.
Claim 4
Dependent Claim
42 words
The combination defined in claim 2 in which the tubular member includes a plurality of fingers in alignment with said slots, the fingers extending axially through the openings in the web portion of the wheel and engaging the leads in said openings.
Claim 5
Dependent Claim
40 words
The combination defined in claim 1 in which the tubular member is made of a non-magnetic metal of sufficient elasticity to permit radial deflection of the portions of the leads remote from the wheel under the influence of centrifugal force.
Claim 6
Dependent Claim
159 words
In a brushless excitation system including an alternating current exciter having a rotor member including a shaft and carrying an armature winding, a rectifier wheel mounted on the shaft, said wheel having a radial web portion and an axially extending rim portion, rectifier means mounted on said rim portion, a plurality of leads extending from said armature winding, at least portions of said leads extending longitudinally substantially parallel to the shaft and passing through openings in the web portion of the wheel for connection to said rectifier means, means for supporting the leads comprising an elastic tubular member disposed coaxially with the shaft, and means for attaching said tubular member to the web portion of the wheel in encircling relation to said openings, the tubular member extending over at least a substantial part of said longitudinal portions of the leads, and the leads engaging the inner surface of the tubular member to be supported thereby in the radial direction.
Claim 7
Dependent Claim
159 words
In a brushless excitation system including an alternating current exciter having a rotor member including a shaft and carrying an armature winding, a rectifier wheel mounted on the shaft, said wheel having a radial web portion and an axially extending rim portion, rectifier means mounted on said rim portion, a plurality of leads extending from said armature winding, at least portions of said leads extending longitudinally substantially parallel to the shaft and passing through openings in the web portion of the wheel for connection to said rectifier means, means for supporting the leads comprising an elastic tubular member disposed coaxially with the shaft, and means for attaching said tubular member to the web portion of the wheel in encircling relation to said openings, the tubular member extending over at least a substantial part of said longitudinal portions of the leads, and the leads engaging the inner surface of the tubular member to be supported thereby in the radial direction.
Claim 8
Dependent Claim
28 words
The combination defined in claim 5 in which said tubular member has a plurality of longitudinal slots in its inner surface, the leads being disposed in the slots.
Claim 9
Dependent Claim
40 words
The combination defined in claim 5 in which said tubular member has a plurality of longitudinal fingers extending through said openings in the web portion of the wheel, said fingers engaging the leads in the openings to support the leads.
Claim 10
Dependent Claim
23 words
The combination defined in claim 7 and including means on the wheel for rigidly supporting the extremities of said fingers outside the openings.
Claim 11
Dependent Claim
30 words
The combination defined in claim 7 in which said tubular member has longitudinal slots in its inner surface in alignment with said fingers, the leads being disposed in said slots.
References Cited (Backward Citations)
US3686523A
Cited
US3723794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |