Patent US3807907A successfully refreshed from Google Patents.
US3807907A
Expired / Lapsed
US
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Hermetic motor-compressor
Assignee: Copeland Corp LLC
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Filing: 1973-07-23
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Granted: 1974-04-30
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Expires: 1993-07-23
Abstract
Abstract A hermetic motor-compressor assembly includes a direct-coupled motor and compressor spring mounted as a unit in a sealed container. The compressor is of the four cylinder Scotch yoke type, with two pairs of opposed coaxial cylinders at right angles on horizontal axes, the pistons of the opposed aligned cylinders being paired by means of a rigid combined yoke and dual connecting rod assembly. The yokes are actuated by rectangular slide blocks fitted on a common crank throw. The yokes and blocks are keyed against displacement with respect to the axes of the cylinders. Suction gas is separated from entrained liquid and guided downwardly in paths close to the motor and through connected passages in the compressor body and out at the bottom.
Inventors
- 👤 E Gannaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:13
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/04; F04B39/00; F04B39/0027; F04B39/0044; F04B39/0055; F04B39/02; F04B39/0223; F04B39/023; F04B39/0238; F04B39/0246; F04B39/10; F04B39/1066; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
255 words
A refrigeration motor-compressor of the type having motor and compressor components enclosed in a sealed container, which container has an inlet through which suction gas is delivered to the interior of the container at a position outside both components, the compressor component having an inlet for receiving gas from the interior of the container, a gasconducting guide surrounding at least a part of the motor component for guiding suction gas over the motor component to the inlet of the compressor component, the guide having a gas inlet which opens thereinto from the container at a position remote from said compressor component inlet, said guide having an outlet coupled to the inlet of the compressor component in substantially gas-tight relation, the motor and compressor components of said motor-compressor being arranged substantially coaxially and coupled to a common shaft, the compressor component having a body containing said inlet of the compressor on a side toward the motor component, the guide including a part formed as an integral upward extension of said body and extending away from the compressor component around the motor, characterized by a plurality of generally annular axially spaced partitioning portions located between the motor and compressor components and defining an annular suction muffling chamber having inlet portions opening thereinto from said guide and outlet portions leading to the inlet of the compressor component, one of said partitions being integral with the body and the other partition comprising an orificed plate fitted in and occupying the full cross section of the interior of said extension.
Claim 2
Dependent Claim
255 words
A refrigeration motor-compressor of the type having motor and compressor components enclosed in a sealed container, which container has an inlet through which suction gas is delivered to the interior of the container at a position outside both components, the compressor component having an inlet for receiving gas from the interior of the container, a gasconducting guide surrounding at least a part of the motor component for guiding suction gas over the motor component to the inlet of the compressor component, the guide having a gas inlet which opens thereinto from the container at a position remote from said compressor component inlet, said guide having an outlet coupled to the inlet of the compressor component in substantially gas-tight relation, the motor and compressor components of said motor-compressor being arranged substantially coaxially and coupled to a common shaft, the compressor component having a body containing said inlet of the compressor on a side toward the motor component, the guide including a part formed as an integral upward extension of said body and extending away from the compressor component around the motor, characterized by a plurality of generally annular axially spaced partitioning portions located between the motor and compressor components and defining an annular suction muffling chamber having inlet portions opening thereinto from said guide and outlet portions leading to the inlet of the compressor component, one of said partitions being integral with the body and the other partition comprising an orificed plate fitted in and occupying the full cross section of the interior of said extension.
Claim 3
Dependent Claim
26 words
A motor-compressor as defined in claim 1 wherein the lower partition is integral with the body and the upper partition is defined by said orificed plate.
Claim 4
Dependent Claim
171 words
In a refrigeration motor-compressor including a casing having an oil sump space in a bottom area thereof, a compressor mounted near the bottom therein and having a shaft extending upwardly therefrom within the casing, a motor in the casing above the compressor for driving the shaft, and means for conducting compressed fluid from the compressor and for supporting the compressor and motor as a unit within the casing comprising a generally annular discharge cover secured to the bottom of the compressor, said cover having annularly arranged muffling chamber portions therein, bearing means for said shaft carried by said cover spaced radially inwardly from said chamber portions, an annular upwardly reentrant spring pocket in said cover between said muffling chamber portions and bearing means, oil pumping, pickup and feeding means carried by the shaft and extending downwardly through the bearing means and into the oil sump space, and a compression coil spring extending upwardly into said pocket from the bottom of the casing and reacting against said cover to support the motor-compressor.
Claim 5
Dependent Claim
171 words
In a refrigeration motor-compressor including a casing having an oil sump space in a bottom area thereof, a compressor mounted near the bottom therein and having a shaft extending upwardly therefrom within the casing, a motor in the casing above the compressor for driving the shaft, and means for conducting compressed fluid from the compressor and for supporting the compressor and motor as a unit within the casing comprising a generally annular discharge cover secured to the bottom of the compressor, said cover having annularly arranged muffling chamber portions therein, bearing means for said shaft carried by said cover spaced radially inwardly from said chamber portions, an annular upwardly reentrant spring pocket in said cover between said muffling chamber portions and bearing means, oil pumping, pickup and feeding means carried by the shaft and extending downwardly through the bearing means and into the oil sump space, and a compression coil spring extending upwardly into said pocket from the bottom of the casing and reacting against said cover to support the motor-compressor.
Claim 6
Dependent Claim
229 words
A refrigeration motor-compressor assembly of the type having a motor component and a compressor component, said components being enclosed in a sealed container, which container has an inlet through which suction gas is delivered to the interior of the container at a position outside both components, the compressor component having an inlet for receiving gas from the interior of the container, a gas-conducting guide surrounding at least a part of the motor component for guiding suction gas over the motor component to the inlet of the compressor component, the guide having a gas inlet which opens thereinto from the container at a position remote from said compressor component inlet, said guide having an outlet coupled to the inlet of the cOmpressor component in substantially gas-tight relation, the two components being direct-coupled by coaxial vertical shaft portions, the inlet to the guide being generally coaxial with the shaft portions at the motor end, characterized by diverting means carried by the guide and surrounding the inlet thereto for deflecting heavier constituents away from said inlet, said guide including an inturned annular flange at its upper end defining a central inlet orifice, the diverting means including an upwardly extending rim portion surrounding and outspaced from said orifice, and a shield overlying said orifice and extending outwardly toward but spaced from the rim portion and spaced above the orificed portion of the flange.
Claim 7
Dependent Claim
229 words
A refrigeration motor-compressor assembly of the type having a motor component and a compressor component, said components being enclosed in a sealed container, which container has an inlet through which suction gas is delivered to the interior of the container at a position outside both components, the compressor component having an inlet for receiving gas from the interior of the container, a gas-conducting guide surrounding at least a part of the motor component for guiding suction gas over the motor component to the inlet of the compressor component, the guide having a gas inlet which opens thereinto from the container at a position remote from said compressor component inlet, said guide having an outlet coupled to the inlet of the cOmpressor component in substantially gas-tight relation, the two components being direct-coupled by coaxial vertical shaft portions, the inlet to the guide being generally coaxial with the shaft portions at the motor end, characterized by diverting means carried by the guide and surrounding the inlet thereto for deflecting heavier constituents away from said inlet, said guide including an inturned annular flange at its upper end defining a central inlet orifice, the diverting means including an upwardly extending rim portion surrounding and outspaced from said orifice, and a shield overlying said orifice and extending outwardly toward but spaced from the rim portion and spaced above the orificed portion of the flange.
Claim 8
Dependent Claim
36 words
A motor-compressor as defined in claim 4 wherein said shield and guide are rigidly secured to said components, and spring locating means on said shield and extending into but spaced from the periphery of said orifice.
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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) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |