US5065484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating rectifier assembly
Assignee: Sundstrand Corp
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Filing: 1990-02-07
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Granted: 1991-11-19
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Expires: 2010-02-07
Abstract
Abstract A rotating rectifier assembly which can be used in a brushless electrical generator comprises an arrangement for supporting diode semiconductor devices in an axially loaded assembly of components within a housing of the rectifier assembly without compressively loading the diode semiconductor devices themselves. Provision is made for flowing liquid coolant in direct contact with the diode semiconductor devices and for the escape of air which is centrifugally separated from the liquid coolant during high speed rotation of the rectifier assembly. The rectifier assembly is compact, light weight and highly reliable.
Inventors
- 👤 Gordon A. Pinchott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:17
CPC Classifications
H; H10; H10W; H10W90/00; H02; H02K; H02K11/00; H02K11/04; H02K11/042; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
In a method of assembling a rotating rectifier assembly comprising axially loading components of the rectifier assembly which are arranged within a tubular housing of the housing of the assembly, the improvement comprising supporting diode semiconductor devices of the rotating rectifier assembly within the housing and in relation to other components of the rectifier assembly so that the diode semiconductor devices are axially positioned in the rectifier assembly without compressively loading said diode semiconductor devices while other components are axially located whereby compressive stresses on the diode semiconductor devices due to the axial loading are avoided.
Claim 2
Dependent Claim
96 words
In a method of assembling a rotating rectifier assembly comprising axially loading components of the rectifier assembly which are arranged within a tubular housing of the housing of the assembly, the improvement comprising supporting diode semiconductor devices of the rotating rectifier assembly within the housing and in relation to other components of the rectifier assembly so that the diode semiconductor devices are axially positioned in the rectifier assembly without compressively loading said diode semiconductor devices while other components are axially located whereby compressive stresses on the diode semiconductor devices due to the axial loading are avoided.
Claim 3
Dependent Claim
33 words
A method according to claim 1, further comprising the step of flowing liquid coolant through said rectifier assembly in direct contact with the diode semiconductor devices for cooling said at least one device.
Claim 4
Dependent Claim
146 words
In a method of assembling a rotating rectifier assembly comprising axially loading components of the rectifier assembly which are arranged within a tubular housing of the housing of the assembly, the improvement comprising supporting diode semiconductor devices of the rotating rectifier assembly within the housing and in relation to other components of the rectifier assembly so that the diode semiconductor devices are not compressed by said axial loading of the other components whereby compressive stresses on the diode semiconductor devices due to the axial loading of the component are avoided, further comprising the step of flowing a liquid coolant through said rectifier assembly for cooling said diode semiconductor devices, and wherein gas which is centrifugally separated from the liquid during rotation of the rectifier assembly is permitted to escape from the rectifier assembly through passage means located along the axis of rotation of the rectifier assembly.
Claim 5
Dependent Claim
146 words
In a method of assembling a rotating rectifier assembly comprising axially loading components of the rectifier assembly which are arranged within a tubular housing of the housing of the assembly, the improvement comprising supporting diode semiconductor devices of the rotating rectifier assembly within the housing and in relation to other components of the rectifier assembly so that the diode semiconductor devices are not compressed by said axial loading of the other components whereby compressive stresses on the diode semiconductor devices due to the axial loading of the component are avoided, further comprising the step of flowing a liquid coolant through said rectifier assembly for cooling said diode semiconductor devices, and wherein gas which is centrifugally separated from the liquid during rotation of the rectifier assembly is permitted to escape from the rectifier assembly through passage means located along the axis of rotation of the rectifier assembly.
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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) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |