US4007389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating rectifier assembly for electric machines
Assignee: Kraftwerk Union AG
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Filing: 1975-07-10
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Granted: 1977-02-08
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Expires: 1995-07-10
Abstract
Abstract Multiphase bridge circuit for electric machines includes a rotating rectifier assembly having cooling members, rectifier cells and fuses, and including a carrier wheel having a radially outer annular flange extending therefrom, the rectifier cells being radially outwardly braced at the inner side of the annular flange, the cooling members being current-conductive and being interposed between the rectifier cells and the inner side of the annular flange, the cooling members being electrically connected with the rectifier cells and being insulated from the carrier wheel, and the fuses being directly braced at the annular flange, one of the fuses, respectively, being serially connected with each of the cooling members, the outer annular flange having a free side spaced from the carrier wheel, the fuses being fastened at the free side of the outer annular flange at locations thereof alternatingly offset from one another in axial direction of the carrier wheel.
Inventors
- 👤 Heinrich Kuter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:37
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/04; H02K11/042
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
171 words
In a multiphase bridge circuit for electric machines, a rotating rectifier assembly comprising cooling members, rectifier cells and fuses, and including a carrier wheel having a radially outer annular flange extending therefrom, said rectifier cells being radially outwardly braced at the inner side of said annular flange, said cooling members being current-conductive and being interposed between said rectifier cells and said inner side of said annular flange, said cooling members being electrically connected with said rectifier cells and being insulated from said carrier wheel, and said fuses being directly braced at said annular flange, one of said fuses, respectively, being serially connected with each of said cooling members, said outer annular flange having a free side spaced from said carrier wheel, said fuses being fastened at said free side of said outer annular flange at locations thereof alternatingly offset from one another in axial direction of said carrier wheel, said outer annular flange being formed, at said free side thereof, with an axial projection for every second one of said fuses.
Claim 2
Dependent Claim
171 words
In a multiphase bridge circuit for electric machines, a rotating rectifier assembly comprising cooling members, rectifier cells and fuses, and including a carrier wheel having a radially outer annular flange extending therefrom, said rectifier cells being radially outwardly braced at the inner side of said annular flange, said cooling members being current-conductive and being interposed between said rectifier cells and said inner side of said annular flange, said cooling members being electrically connected with said rectifier cells and being insulated from said carrier wheel, and said fuses being directly braced at said annular flange, one of said fuses, respectively, being serially connected with each of said cooling members, said outer annular flange having a free side spaced from said carrier wheel, said fuses being fastened at said free side of said outer annular flange at locations thereof alternatingly offset from one another in axial direction of said carrier wheel, said outer annular flange being formed, at said free side thereof, with an axial projection for every second one of said fuses.
Claim 3
Dependent Claim
30 words
Rotating rectifier assembly according to claim 1 wherein said cooling members carrying said rectifier cells terminate at respective locations spaced at equal distances axially from the respective fuses associated therewith.
Claim 4
Dependent Claim
34 words
Rotating rectifier assembly according to claim 2 wherein said cooling members are alternating offset from one another in axial direction of said carrier wheel to the same extent as the respective fuses associated therewith.
Claim 5
Dependent Claim
36 words
Rotating rectifier assembly according to claim 1 wherein said cooling members terminate at the same peripheral line, and including connections straps between the respective cooling members and fuses, said connecting straps being of alternatingly varying lengths.
References Cited (Backward Citations)
US3371235A
Cited
US3283219A
Cited
US3363122A
Cited
US3590291A
Cited
US3721843A
Cited
US3852628A
Cited
US3872335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |