US3774060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid cooled dynamo electric machine
Assignee: Lucas Support Services Ltd
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Filing: 1971-08-05
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Granted: 1973-11-20
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Expires: 1991-08-05
Abstract
Abstract A dynamo electric machine in which there is at least one rotatable component mounted on a shaft wherein there is provided a de-aeration chamber connected to the shaft for rotation therewith, the shaft having an axial bore along which cooling fluid can flow and the de-aeration chamber being in communication with said axial bore so that cooling fluid flowing through the bore can pass into the chamber by centrifugal force where it is de-aerated.
Inventors
- 👤 R Sharpe
- 👤 P Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:44
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/02; F16H15/04; F16H15/06; F16H15/32; F16H15/36; F16H15/38; H; H02; H02K; H02K9/00; H02K9/19
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
A dynamo electric machine having a rotatable shaft with at least one component mounted on the shaft for rotation therewith, said shaft having an axial bore for the passage of cooling fluid, there being further provided a de-aeration chamber which is connected to said shaft for rotation therewith, said chamber being in communication with said axial bore in said shaft and having a plurality of baffles which are secured in said chamber and which extend radially inwardly therefrom, so that cooling fluid will pass into said chamber where it is de-aerated by centrifugal force.
Claim 2
Dependent Claim
94 words
A dynamo electric machine having a rotatable shaft with at least one component mounted on the shaft for rotation therewith, said shaft having an axial bore for the passage of cooling fluid, there being further provided a de-aeration chamber which is connected to said shaft for rotation therewith, said chamber being in communication with said axial bore in said shaft and having a plurality of baffles which are secured in said chamber and which extend radially inwardly therefrom, so that cooling fluid will pass into said chamber where it is de-aerated by centrifugal force.
Claim 3
Dependent Claim
35 words
A dynamo electric machine as claimed in claim 1 wherein each of said baffles is provided with at least one radially extending aperture which communicates with an aperture formed in the wall of said chamber.
Claim 4
Dependent Claim
43 words
A dynamo electric machine as claimed in claim 1 wherein an opening is provided in the wall of said chamber, said opening forming a direct communication between said chamber and an annular passage which is defined by a stationary member surrounding said opening.
Claim 5
Dependent Claim
28 words
A dynamo electric machine as claimed in claim 1 wherein there is provided cooling fluid distributor means mounted on said shaft for discharging cooling fluid onto said components.
Claim 6
Dependent Claim
30 words
A dynamo electric machine as claimed in claim 1 wherein a rectifier is mounted within said de-aeration chamber where it can be cooled by the cooling fluid entering said chamber.
References Cited (Backward Citations)
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Cited
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US3393333A
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US3461331A
Cited
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Cited
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Cited
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |