Patent US3825372A successfully refreshed from Google Patents.
US3825372A
Expired / Lapsed
US
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Compact compressor unit
Assignee: Stal Refrigeration AB
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Filing: 1972-12-18
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Granted: 1974-07-23
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Expires: 1992-12-18
Abstract
Abstract A refrigeration compressor unit comprising a compressor, a motor and an oil separating system, wherein the compressor is mounted within the oil separator housing, and the motor is mounted on the compressor.
Inventors
- 👤 A Lundberg
- 👤 R Axelsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:08
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/02; F04C29/026; F25; F25B; F25B43/00; F25B43/02; Y; Y10; Y10S; Y10S418/00; Y10S418/01
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
146 words
Compressor unit for a refrigeration plant, comprising: a compressor; a motor for driving said compressor; an outlet port from said compressor; oil separating means in the form of a container for separating from each other refrigerant from the plant and oil for lubrication of said compressor; said refrigerant and said oil leaving said outlet port together; said compressor being arranged within said container; a primary oil separator, surrounding and covering said outlet port; a secondary oil separator, dividing said container into an upper part and a lower part; an oil sump at the bottom of said lower part Of said container; said outlet port of said compressor and said primary oil separator being arranged above said oil sump and below said secondary oil separator; and a discharge port for the entire compressor unit arranged in said upper part of said container above said secondary oil separator.
Claim 2
Dependent Claim
146 words
Compressor unit for a refrigeration plant, comprising: a compressor; a motor for driving said compressor; an outlet port from said compressor; oil separating means in the form of a container for separating from each other refrigerant from the plant and oil for lubrication of said compressor; said refrigerant and said oil leaving said outlet port together; said compressor being arranged within said container; a primary oil separator, surrounding and covering said outlet port; a secondary oil separator, dividing said container into an upper part and a lower part; an oil sump at the bottom of said lower part Of said container; said outlet port of said compressor and said primary oil separator being arranged above said oil sump and below said secondary oil separator; and a discharge port for the entire compressor unit arranged in said upper part of said container above said secondary oil separator.
Claim 3
Dependent Claim
51 words
Compressor unit as defined in claim 1, wherein said compressor comprises a lubrication system connected to said oil sump, said oil for lubrication of said compressor being forced from said oil sump into said lubrication system by pressure, said pressure being generated within said container by said refrigerant from the plant.
Claim 4
Dependent Claim
36 words
Compressor unit according to claim 1, wherein said compressor and said oil separator housing share a common end portion, said end portion being provided with an inlet and said outlet discharge port for the compressor unit.
Claim 5
Dependent Claim
17 words
Compressor unit as defined in claim 3, wherein said motor is attached to said common end portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |