US3830341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication system for a motor compressor unit
Assignee: Carrier Corp
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Filing: 1972-11-24
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Granted: 1974-08-20
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Expires: 1992-11-24
Abstract
Abstract A lubrication system for a motor-compressor unit, including a crankshaft suitably connected to the rotor of said compressor motor for rotation thereby. The crankshaft includes an eccentric bore provided therethrough for the passage of oil from a reservoir to the bearings journaling the crankshaft. A suitable opening is provided for communicating a first portion of the eccentric bore with a space remote from the bearings. Foreign particles entrained in the lubricating oil are collected in the first portion of the eccentric bore. The foreign particles pass from the first portion of the bore through the opening to the space remote from the bearings to prevent the foreign particles from being provided to the bearings.
Inventors
- 👤 S Davies
- 👤 T Kropiwnicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/02; F04B39/0223; F04B39/023; F04B39/0238; F04B39/0246; F04B39/0253
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
209 words
A lubrication system for a hermetically sealed compressor including first and second shells united together to house said compressor, a crankshaft having an eccentric bore provided therethrough, means to rotate said crankshaft, means defining a reservoir of lubricating oil in one of said shells, said lubricating oil having foreign particles entrained therein, and bearing means journaling said crankshaft, said lubrication system comprising: A. pump means communicating said reservoir means and said eccentric bore for delivering lubrication oil from said reservoir means to said eccentric bore, the foreign particles entrained in said lubrication oil being collected in a first portion of said eccentric bore; B. a thrust bearing journaling said pump means; C. conduit means communicating said eccentric bore and said bearing means to provide lubricating oil to said bearing means; and D. means defining a groove in said thrust bearing, one end of said groove being alignable with said first portion of said eccentric bore once during each revolution of said crankshaft, the other end of the groove opening into one of said shells, the foreign particles collected in said first portion of said bore passing through said groove and being deposited in one of said shells to prevent said foreign particles from being provided to said bearing means.
Claim 2
Dependent Claim
209 words
A lubrication system for a hermetically sealed compressor including first and second shells united together to house said compressor, a crankshaft having an eccentric bore provided therethrough, means to rotate said crankshaft, means defining a reservoir of lubricating oil in one of said shells, said lubricating oil having foreign particles entrained therein, and bearing means journaling said crankshaft, said lubrication system comprising: A. pump means communicating said reservoir means and said eccentric bore for delivering lubrication oil from said reservoir means to said eccentric bore, the foreign particles entrained in said lubrication oil being collected in a first portion of said eccentric bore; B. a thrust bearing journaling said pump means; C. conduit means communicating said eccentric bore and said bearing means to provide lubricating oil to said bearing means; and D. means defining a groove in said thrust bearing, one end of said groove being alignable with said first portion of said eccentric bore once during each revolution of said crankshaft, the other end of the groove opening into one of said shells, the foreign particles collected in said first portion of said bore passing through said groove and being deposited in one of said shells to prevent said foreign particles from being provided to said bearing means.
Claim 3
Dependent Claim
181 words
A lubrication system for a hermetically sealed compressor including a crankshaft, means to rotate said crankshaft, means defining a reservoir of lubricating oil, said lubricating oil having foreign particles entrained therein, and bearing means journaling said crankshaft, said lubrication system comprising: A. passage means provided in said crankshaft for the passage of lubricating oil therethrough, the foreign particles entrained in said lubricating oil being accumulated in a first portion of said passage means; B. pump means communicating with said reservoir means and said passage means, said pump means delivering lubricating oil from said reservoir means to said passage means; C. conduit means communicating said passage means and said bearing means to provide lubricating oil to said bearing means; and D. means for receiving said accumulated foreign particles to prevent said foreign particles from being provided to said bearing means, said receiving means including a thrust bearing journaling said pump means and being alignable with said passage means in said crankshaft so that the foreign particles accumulated in said first portion of said passage means will move therefrom into said receiving means.
Claim 4
Dependent Claim
181 words
A lubrication system for a hermetically sealed compressor including a crankshaft, means to rotate said crankshaft, means defining a reservoir of lubricating oil, said lubricating oil having foreign particles entrained therein, and bearing means journaling said crankshaft, said lubrication system comprising: A. passage means provided in said crankshaft for the passage of lubricating oil therethrough, the foreign particles entrained in said lubricating oil being accumulated in a first portion of said passage means; B. pump means communicating with said reservoir means and said passage means, said pump means delivering lubricating oil from said reservoir means to said passage means; C. conduit means communicating said passage means and said bearing means to provide lubricating oil to said bearing means; and D. means for receiving said accumulated foreign particles to prevent said foreign particles from being provided to said bearing means, said receiving means including a thrust bearing journaling said pump means and being alignable with said passage means in said crankshaft so that the foreign particles accumulated in said first portion of said passage means will move therefrom into said receiving means.
Claim 5
Dependent Claim
50 words
A lubricating system in accordance with claim 2 wherein said thrust bearing includes a relief groove formed therein, one end of said groove being alignable with said first portion of said passage and the other end of said groove being in communication with a space remote from said bearing means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |