US4105374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated multi-unit refrigeration motor-compressor assembly
Assignee: Copeland Corp LLC
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Filing: 1977-03-28
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Granted: 1978-08-08
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Expires: 1997-03-28
Abstract
Abstract Two motor-compressor units of the vertical shaft type are housed in spaced parallel relation in a common sealing housing. A hollow chambered partition extends transversely within the housing between the units and is attached to the side walls and top wall but spaced from the bottom wall. The partition functions as a suction gas header, substantially isolates the suction areas above the oil level, and stiffens the housing walls, inhibiting resonant vibration.
Inventors
- 👤 Philip H. Scharf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/10; F01C21/104; F01C21/007; F04; F04B; F04B39/00; F04B39/12; F04B39/121; F04B41/00; F04B41/06; F25; F25B; F25B31/00; F25B31/02; F04C; F04C23/00; F04C23/001; F04C23/008; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
92 words
A hermetic multi-unit refrigeration motor-compressor assembly comprising in combination with a sealed metallic housing having top, bottom and side walls, a pair of motor-compressor units in spaced parallel relation in the housing, characterized by a partitioning member extending transversely within the housing between said units to define two compartments, each of which contains one of said units, the partitioning member being affixed to the side walls and top wall but substantially spaced above the bottom wall of the housing, whereby the bottom portion of the housing defines a common oil sump area.
Claim 2
Dependent Claim
92 words
A hermetic multi-unit refrigeration motor-compressor assembly comprising in combination with a sealed metallic housing having top, bottom and side walls, a pair of motor-compressor units in spaced parallel relation in the housing, characterized by a partitioning member extending transversely within the housing between said units to define two compartments, each of which contains one of said units, the partitioning member being affixed to the side walls and top wall but substantially spaced above the bottom wall of the housing, whereby the bottom portion of the housing defines a common oil sump area.
Claim 3
Dependent Claim
40 words
An assembly as defined in claim 1 wherein the partitioning member substantially isolates the portions of said compartments above the bottom of said member, the bottom of said member being below the intended normal oil level in said sump area.
Claim 4
Dependent Claim
18 words
An assembly as defined in claim 1 wherein the partitioning member is hollow and defines an accumulator chamber.
Claim 5
Dependent Claim
51 words
An assembly as defined in claim 2 wherein the partitioning member is hollow and defines a suction gas accumulator chamber, a suction return line connection portion opening into the chamber from outside the housing, and suction gas ports opening laterally from the interior of the chamber into each of said compartments.
Claim 6
Dependent Claim
72 words
A hermetic multi-unit refrigeration motor-compressor assembly comprising in combination with a sealed metallic housing having top, bottom and side walls, a pair of motor-compressor units in spaced parallel relation in the housing, characterized by a partitioning member extending transversely within the housing between said units to define two compartments, each of which contains one of said units, the partitioning member being affixed to the side walls and having an accumulator chamber therein.
Claim 7
Dependent Claim
72 words
A hermetic multi-unit refrigeration motor-compressor assembly comprising in combination with a sealed metallic housing having top, bottom and side walls, a pair of motor-compressor units in spaced parallel relation in the housing, characterized by a partitioning member extending transversely within the housing between said units to define two compartments, each of which contains one of said units, the partitioning member being affixed to the side walls and having an accumulator chamber therein.
Claim 8
Dependent Claim
66 words
An assembly as defined in claim 5 wherein the bottom of said partitioning member is spaced above the bottom wall of the housing and the top and ends of said partitioning member are joined to the top and side walls respectively of the housing, whereby said compartments are substantially isolated from each other except in an oil sump area below the bottom of the partitioning member.
Claim 9
Dependent Claim
49 words
An assembly as defined in claim 6 including coupling portions having passage means extending through one of said walls and into the chamber in said partitioning member, and passage-defining portions extending from the interior of said chamber into each of said compartments for communication with each of said units.
Claim 10
Dependent Claim
23 words
In an assembly as defined in claim 7, passage-defining means extending from a lower portion of the chamber to said oil sump area.
Claim 11
Dependent Claim
41 words
An assembly as defined in claim 5 wherein said partitioning member comprises a hollow sheet metal enclosure having end wall portions conforming substantially to the shape of and fitted closely against the inner faces of the side walls of the housing.
Claim 12
Dependent Claim
23 words
An assembly as defined in claim 9 wherein said conforming portions of the walls of the partitioning member and housing are substantially flat.
Claim 13
Dependent Claim
84 words
A hermetic multi-unit refrigeration motor-compressor assembly comprising in combination with a sealed metallic housing having top, bottom and side walls, a pair of motor-compressor units in spaced parallel relation in the housing, characterized by a partitioning member extending transversely within the housing between said units, to define two compartments, each of which contains one of said units, the partitioning member being affixed to the side walls and top wall and containing a chamber defining an accumulator in fluid-conductive communication with both of the compressors.
Claim 14
Dependent Claim
84 words
A hermetic multi-unit refrigeration motor-compressor assembly comprising in combination with a sealed metallic housing having top, bottom and side walls, a pair of motor-compressor units in spaced parallel relation in the housing, characterized by a partitioning member extending transversely within the housing between said units, to define two compartments, each of which contains one of said units, the partitioning member being affixed to the side walls and top wall and containing a chamber defining an accumulator in fluid-conductive communication with both of the compressors.
Claim 15
Dependent Claim
50 words
An assembly as defined in claim 11 including a return line coupling portion leading into said chamber, and wherein said fluid-conductive communication includes openings in the partitioning member connecting the chamber to each of said compartments to permit refrigerant to flow to said compressors through the space in said compartments.
Claim 16
Dependent Claim
44 words
An assembly as defined in claim 11 including a return line coupling portion leading into said chamber and wherein each of said compressors discharges directly into said housing, said fluid-conductive communication comprising a conduit leading from said chamber to the inlet of each compressor.
Claim 17
Dependent Claim
30 words
An assembly as defined in claim 11 wherein the partitioning member is a hollow sheet metal element and said accumulator chamber is graduated to increased width toward said side walls.
Claim 18
Dependent Claim
41 words
An assembly as defined in claim 14 wherein said chamber defines a suction accumulator, and tubular fluid conductive means extending vertically within one of said chamber portions of increased width for conducting fluid from said chamber for delivery to the compressors.
Claim 19
Dependent Claim
40 words
An assembly as defined in claim 14 wherein said chamber defines a suction accumulator, a J-tube in one of said chamber portions of increased width, and tubular means connected to said J-tube for conducting fluid to each of said compressors.
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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) | 1981-08-07 | 1982-02-06 | 1982-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-07 | 1986-02-06 | 1986-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-07 | 1990-02-06 | 1990-08-08 | $7700.00 | Window Closed / Lapsed |