US3767949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing lubricating system
Assignee: Motors Liquidation Co
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Filing: 1972-06-28
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Granted: 1973-10-23
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Expires: 1992-06-28
Abstract
Abstract In a preferred embodiment, this disclosure relates to a lubricating system for a bearing supporting the armature of a dynamoelectric machine. The lubricating system comprises a reservoir of lubricant which is adapted to be continuously replenished and a lubricant slinger or thrower which is supported adjacent one side of the bearing and upon the armature for rotation therewith. The reservoir has a portion of the bearing immersed therein when the machine is inactive to provide for the bearing to be lubricated when the machine is activated. The lubricant thrower is adapted to pass through the reservoir while the machine is continuously operating and centrifugally spray the lubricant to provide a mist of lubricant. The system further comprises a fan blade supported immediately adjacent the other side of the bearing and upon the armature shaft for rotation therewith. The fan blade serves to draw the mist of the lubricant through and about the bearing to provide lubrication of the bearing during continuous operation of the machine.
Inventors
- 👤 W Newill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659; F16C33/664; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/173; H02K5/1732; H02K9/00; H02K9/19
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
198 words
In a lubricant cooled dynamoelectric machine, the combination comprising: a rotatable armature shaft; a bearing assembly supporting the end of an armature shaft; and a bearing lubricating system including a first reservoir of lubricating coolant adjacent the end of the armature shaft and having the lower portion of the bearing assembly immersed therein when the machine is inactive to provide for the bearing assembly to be lubricated when the machine is activated, a second reservoir above said first reservoir and adapted to collect lubricating coolant during continuous operation of the machine, said second reservoir having gravity feed means for continuously replenishing said first reservoir with the lubricating coolant, an oil thrower supported adjacent one side of the bearing assembly and upon the armature shaft for rotation therewith and being adapted to pass through said first reservoir during continuous operation of the machine for centrifugally spraying the lubricating coolant to provide a mist of lubricating coolant, and a fan supported adjacent the other sides of the bearing assembly upon the armature shaft for rotation therewith and serving to draw the spray of lubricating coolant through and about the bearings to provide lubrication thereof during continuous operation of the machine.
Claim 2
Dependent Claim
198 words
In a lubricant cooled dynamoelectric machine, the combination comprising: a rotatable armature shaft; a bearing assembly supporting the end of an armature shaft; and a bearing lubricating system including a first reservoir of lubricating coolant adjacent the end of the armature shaft and having the lower portion of the bearing assembly immersed therein when the machine is inactive to provide for the bearing assembly to be lubricated when the machine is activated, a second reservoir above said first reservoir and adapted to collect lubricating coolant during continuous operation of the machine, said second reservoir having gravity feed means for continuously replenishing said first reservoir with the lubricating coolant, an oil thrower supported adjacent one side of the bearing assembly and upon the armature shaft for rotation therewith and being adapted to pass through said first reservoir during continuous operation of the machine for centrifugally spraying the lubricating coolant to provide a mist of lubricating coolant, and a fan supported adjacent the other sides of the bearing assembly upon the armature shaft for rotation therewith and serving to draw the spray of lubricating coolant through and about the bearings to provide lubrication thereof during continuous operation of the machine.
Claim 3
Dependent Claim
247 words
In a dynamoelectric machine having a housing means having bearing support means; a pair of bearings each having outer races supported within said bearing support means; an armature shaft having its opposite ends journaled within and extending through said bearings; and bearing lubricating systems, the improvement being that said bearing lubricating systems have first reservoirs of lubricating coolant formed within said housing means immediately adjacent and below said opposite ends of said armature shaft and with the lower portion of said bearings being immersed therein when the machine is inactive so that said bearings are lubricated when the machine is activated, second reservoirs formed within said housing means immediately adjacent and above said opposite ends of said armature shaft and being adapted to collect lubricating coolant therein during operation of the machine, said second reservoirs having wicks providing for the lubricating fluid to continuously pass therefrom into said first reservoirs to replenish said first reservoirs, a lubricating coolant thrower supported adjacent one side of said bearing and upon the end of said armature shaft for rotation therewith and being adapted to pass through said first reservoir when the machine is activated to centrifugally spray the lubricatiNg fluid to provide a mist of lubricating fluid, and a fan supported adjacent the other side of said bearing and upon said armature shaft for rotation therewith, said fan serving to draw said mist of lubricating coolant through and about said bearing to lubricate the same during operation of the machine.
Claim 4
Dependent Claim
247 words
In a dynamoelectric machine having a housing means having bearing support means; a pair of bearings each having outer races supported within said bearing support means; an armature shaft having its opposite ends journaled within and extending through said bearings; and bearing lubricating systems, the improvement being that said bearing lubricating systems have first reservoirs of lubricating coolant formed within said housing means immediately adjacent and below said opposite ends of said armature shaft and with the lower portion of said bearings being immersed therein when the machine is inactive so that said bearings are lubricated when the machine is activated, second reservoirs formed within said housing means immediately adjacent and above said opposite ends of said armature shaft and being adapted to collect lubricating coolant therein during operation of the machine, said second reservoirs having wicks providing for the lubricating fluid to continuously pass therefrom into said first reservoirs to replenish said first reservoirs, a lubricating coolant thrower supported adjacent one side of said bearing and upon the end of said armature shaft for rotation therewith and being adapted to pass through said first reservoir when the machine is activated to centrifugally spray the lubricatiNg fluid to provide a mist of lubricating fluid, and a fan supported adjacent the other side of said bearing and upon said armature shaft for rotation therewith, said fan serving to draw said mist of lubricating coolant through and about said bearing to lubricate the same during operation of the machine.
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |