US3689203A - Heremetic refrigeration compressor - Google Patents
Heremetic refrigeration compressor Download PDFInfo
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- US3689203A US3689203A US76939A US3689203DA US3689203A US 3689203 A US3689203 A US 3689203A US 76939 A US76939 A US 76939A US 3689203D A US3689203D A US 3689203DA US 3689203 A US3689203 A US 3689203A
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- housing
- compressing mechanism
- motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/02—Compressor arrangements of motor-compressor units
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
- H02K9/12—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
Definitions
- ABSTRACT A hermetic refrigeration compressor wherein flow guiding means are provided to direct suction gas and oil mixture onto and through the electric motor prior to introducing the gas into the compressing cylinders is disclosed wherein the oil may be better separated and separately returned to its sump, the electric motor cooled and the gas is better vaporized.
- a spring mounted vertical disposed compressor is disclosed of the same type of that of US. application Ser. No. 889,104 wherein a conduit, comprising a shroud and flexible sleeve, guides the input suction gases from the inlet connection to the motor. The flexible sleeve also aids in the mounting of the unit and serves to dampen vibration.
- the present invention relates to hermetic refrigeration compressors and is especially concerned with internally sprung electric powered reciprocating hermetic compressors.
- Hermetic compressors are commercially employed in refrigeration equipment such as that used in large capacity air conditioning. These compressors are normally driven by an electric motor which is itself sealed in the refrigerant containing enclosure. Normally two dome segments are joined together to enclose a spherical or elongated spheroid volume in which the motor and compressing mechanism are mounted. Suction gas is conventionally discharged directly into the housing to occupy the volume before being ingested into the ports and chambers leading to the compressing mechanism.
- the present invention encompasses in the environment of a hermetic compressor of the type referred to above, the improvement comprising means coupled between the suction gas input and the electric motor for guiding at least the major part of the suction gas flowing from the input to, about through the electric motor prior to entering of said gas into the compressing mechanism.
- the suction gas thereby serves to cool the motor and allow it to operate more efficiently.
- FIG. 1' is a modification of FIG. 1 of the aforementioned, and incorporated by reference, patent application, and is generally a sectional view of a hermetic compressor constructed in accordance with the present invention.
- the compressor is generally designated by the numeral 9 and includes a shell or housing 10 in which an electric motor 24 and compressing mechanism 18 coupled thereto are mounted.
- the motor 24 includes a stator 34 and rotor 36.
- the rotor 36 drives a crank shaft 28.
- the compressing mechanism 18 is of the positive displacement horizontal piston type, whose pistons are driven by theshaft 28.
- the compressing mechanism 18 and motor 24 are vertically mounted to the inner walls of the housing 10 by a plurality of spring mounts 70.
- a suction gas inlet connection 16 is provided into the housing 10 and an outlet connection 200 from compressed discharge lines 68 and the housing 10 is provided.
- a conduit for guiding at least the major part and preferably all of the suction gas from the inlet 16 to and over the motor 24, prior to that gas reaching the compressing mechanism.
- This conduit 210 includes a shroud 38 covering the upper part of the motor 24.
- the shroud 38 connects, as indicated at 209, with upstanding, generally cylindrical, walls 211 from the housing of the compressing mechanism 18, to substantially enclose the motor 24.
- An opening 238 is provided at the top of the shroud 38 and a flexible sleeve 220, which also comprises part of the conduit or guide means 210, connects that opening to the inlet 16.
- the sleeve 220 is tightly bound to a cylindrical surface 381 of the shroud 38 to move with that member.
- the sleeve 220 is preferably made of neoprene, an other elastomer, or other material compatible with the oil-refrigerant environment.
- a flexible convoluted metal coupling also may be employed.
- the sleeve 220 mates with a cylindrical depending flange surface 221 of inlet 16 against which it may move vertically in a limited telescoping action in response to movement of the motor-compressing mechanism on its mounts 70.
- the guide means 210 thus serve to direct the cooling suction gas to and over the electric motor and serve to lessen transfer of heat from the relatively hot portions of the compressor: the cylinders 23, the mufflers 66 and discharge line 68.
- the effect is to run the motor 24 at a lower temperature than the just mentioned. components. Since heat is dissipated through the housing 10 to which these components are juxtaposed, their higher temperature is acceptable.
- the flexible sleeve 220 in response to movement of the compressing mechanism on its spring mounts the flexible sleeve 220 flexes and telescopes up and down relative to the surface 221 of the inlet fixture 16.
- the other section of the guide means 210, the shroud 38, also flexes to a lesser degree to accommodate motion of the compressor mechanism 18.
- the guide means 210 serves not only to improve the performance of the compressor by cooling the motor 24 and achieving a better separation between gas and oil, but also serves as an aid to the suspending and stabilization of the compressor mechanism 18 and as a vibration damper and noise suppressor.
- the guide means need confine only a major part of the suction gas to be efiective, although it would be desirable to guide all of the suction gases to the motor 24.
- the suction gas is in communication with both sides of the sleeve 220 and shroud 38, there is only a small pressure difference and consequently only a reasonably loose fit between, for example, the sleeve 22) and the surface 221 need be used to achieve flow of the major part of the suction gas over the motor winding.
- hermetic refrigeration compressor has been described which has improved provision for electric motor heat dissipation, separation of oil and suction gas and also provides for vibration damping.
- a hermetic refrigeration compressor of the type having a closed housing with a suction gas inlet and a compressed gas outlet therefrom, a compressing mechanism mounted in the housing and having an output which is coupled to the housing outlet, and an electric motor also mounted within the housing and coupled to drive the compressing mechanism and where the compressing mechanism is spring mounted, the improvement comprising:
- said guide means including a flexible gas transfer coupling for absorbing vibration and movement
- said guide means includes a flexible sleeve as said gas transfer coupling, and a shroud over said motor, which shroud is connected to said sleeve and to the compressing mechanism to substantially enclose said motor,
- said flexible sleeve is mounted generally vertically and coupled with the housing suction gas inlet for telescopic motion therewith in response to vertical motion of said sprung compressing mechanism.
- said flexible sleeve is of a hollow cylindrical configuration and is constructed of an oil and refrigerant resistant elastomer.
- a hermetic refrigeration compressor for an air conditioning refrigeration system comprising, in combination:
- a housing in the form of a closed and sealed shell having a suction gas inlet (16) and a compressed gas outlet (2M9);
- an electric motor comprising a rotor (36) and stator (34), mounted within said housing;
- a compressing mechanism of the positive displacement type within said housing and having a driven crank shaft (28) which is driven by the rotor of said motor, a compressed gas outlet coupled to said housing outlet and a suction gas inlet;
- conduit disposed within said housing between said housing inlet and said compressing mechanism and enshrouding said motor, said conduit serving to guide, during operation, suction gas from said housing inlet to said motor;
- said compressing mechanism and said conduit being cooperatively disposed so as to have said compressing mechanisms gas inlet as well as passageways to the volume between said compressing mechanism and said housing beyond said motor so that the flow of gas to said compressing mechanisms gas inlet and to said volume is through said motor;
- said motor may be cooled by the suction gas from the housing inlet.
- a hermetic refrigeration compressor for an air conditioning refrigeration system comprising, in combination:
- a housing in the form of a closed and sealed shell having a suction gas inlet (16) and a compressed gas outlet (200);
- an electric motor comprising a rotor (36) and stator (34), mounted within said housing;
- said compressing mechanism and said guide means being cooperatively disposed so as to have said compressing mechanisms gas inlet as well as 5 compressed gas outlet therefrom,
- said compressing mechanism and said motor are mounted in a generally vertical array
- said spring mounts are connected about the interior walls of said housing in a vertical array
- said housing suction gas inlet is inthe upper part of said housing
- said electric motor is mounted atop of said compressing mechanism
- said guide means includes:
- said suction gas inlet having a mating surface (221) for receiving in a vertical telescopic manner said flexible sleeve,
- said motor may be cooled by the suction gas from the housing inlet.
- a hermetic refrigeration compressor of the type having a closed housing with a suction gas inlet and a a compressing mechanism mounted in the housing and having an output which is coupled to the housing outlet, and an electric motor also mounted within the housing and coupled to drive the compressing mechanism and where 0 the compressing mechanism is spring mounted, the improvement comprising:
- a conduit mounted between said input and said compressing mechanism and enshrouding said motor, for guiding, during operation, suction gas from the housing suction gas inlet to and through the motor prior to the flow of such gas to the compressing mechanism, and
- said conduit including a sleeve and a shroud over said motor, which shroud is connected to said sleeve and to the compressing mechanism, and which sleeve and shroud are connected together in a manner allowing for telescopic movement therebetween,
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Abstract
A hermetic refrigeration compressor wherein flow guiding means are provided to direct suction gas and oil mixture onto and through the electric motor prior to introducing the gas into the compressing cylinders is disclosed wherein the oil may be better separated and separately returned to its sump, the electric motor cooled and the gas is better vaporized. A spring mounted vertical disposed compressor is disclosed of the same type of that of U.S. application Ser. No. 889,104 wherein a conduit, comprising a shroud and flexible sleeve, guides the input suction gases from the inlet connection to the motor. The flexible sleeve also aids in the mounting of the unit and serves to dampen vibration.
Description
HEREMETIC REFRIGERATION COMPRESSOR Inventor: Robert S. Vaughn, Spring Garden Twp., Pa.
Corporation,
[73] Assignee: Borg-Warner Chicago, Ill.
Filed: Sept. 30, 1970 Appl. No.: 76,939
[52] US. Cl. ..417/371, 417/363, 417/902 Field of Search ..4l7/363, 371, 312, 902
References Cited UNITED STATES PATENTS 10/1958 Philipp- ..417/363 2/1938 Faber ..417/312 3/1965 Cramer etal ..417/371 Int. Cl ..F04b 17/00, F04b 35/00, F04b 39/02 [451 Sept. 5, 1972 [57] ABSTRACT A hermetic refrigeration compressor wherein flow guiding means are provided to direct suction gas and oil mixture onto and through the electric motor prior to introducing the gas into the compressing cylinders is disclosed wherein the oil may be better separated and separately returned to its sump, the electric motor cooled and the gas is better vaporized. A spring mounted vertical disposed compressor is disclosed of the same type of that of US. application Ser. No. 889,104 wherein a conduit, comprising a shroud and flexible sleeve, guides the input suction gases from the inlet connection to the motor. The flexible sleeve also aids in the mounting of the unit and serves to dampen vibration.
HEREMETIC REFRIGERATION COMPRESSOR FIELD OF THE INVENTION The present invention relates to hermetic refrigeration compressors and is especially concerned with internally sprung electric powered reciprocating hermetic compressors.
BACKGROUND OF THE INVENTION Hermetic compressors are commercially employed in refrigeration equipment such as that used in large capacity air conditioning. These compressors are normally driven by an electric motor which is itself sealed in the refrigerant containing enclosure. Normally two dome segments are joined together to enclose a spherical or elongated spheroid volume in which the motor and compressing mechanism are mounted. Suction gas is conventionally discharged directly into the housing to occupy the volume before being ingested into the ports and chambers leading to the compressing mechanism.
As is true for all electric motors, those sealed into the hermetic compressor produce heat during operation. The ability to dissipate this heat effects both the size and type of motor to be employed and its operating efficiency. It is a primary object of the present invention to provide for improved heat dissipation for the electric motor of hermetic compressors and especially for those that are spring mounted.
SUMMARY OF THE INVENTION The present invention encompasses in the environment of a hermetic compressor of the type referred to above, the improvement comprising means coupled between the suction gas input and the electric motor for guiding at least the major part of the suction gas flowing from the input to, about through the electric motor prior to entering of said gas into the compressing mechanism. The suction gas thereby serves to cool the motor and allow it to operate more efficiently.
The present invention is incidentally disclosed, in part, but not claimed, in the co-pending US. Pat. application Ser. No. 889,104, filed Dec. 30, 1969 of the joint inventors: F. Michael Laucks and Robert S. Vaughn (the sole inventor of the present application), which co-pending application is currently entitled Hermetic Compressor and is assigned to Borg-Warner Corp., the assignee .of the present application. For brevity, the drawings and detailed description of that co-pending application are hereby incorporated by reference as if fully set out herein under the practice authorized by the Commissioner of Patents in the announcement dated Jan. 15, 1969 and published at 34 Federal Register 883 (859 O.G. 346).
BRIEF DESCRIPTION OF THE DRAWINGS The The present invention, together with the further advantages thereof, may best be understood by reference to the following description taken in connection with the accompanying drawing.
The sole FIGURE, FIG. 1' is a modification of FIG. 1 of the aforementioned, and incorporated by reference, patent application, and is generally a sectional view of a hermetic compressor constructed in accordance with the present invention.
DETAILED DESCRIPTION The compressor is generally designated by the numeral 9 and includes a shell or housing 10 in which an electric motor 24 and compressing mechanism 18 coupled thereto are mounted. The motor 24 includes a stator 34 and rotor 36. The rotor 36 drives a crank shaft 28. The compressing mechanism 18 is of the positive displacement horizontal piston type, whose pistons are driven by theshaft 28. The compressing mechanism 18 and motor 24 are vertically mounted to the inner walls of the housing 10 by a plurality of spring mounts 70. A suction gas inlet connection 16 is provided into the housing 10 and an outlet connection 200 from compressed discharge lines 68 and the housing 10 is provided.
In accordance with the present invention, means, a conduit, generally designated 210, is provided for guiding at least the major part and preferably all of the suction gas from the inlet 16 to and over the motor 24, prior to that gas reaching the compressing mechanism. This conduit 210 includes a shroud 38 covering the upper part of the motor 24. The shroud 38 connects, as indicated at 209, with upstanding, generally cylindrical, walls 211 from the housing of the compressing mechanism 18, to substantially enclose the motor 24. An opening 238 is provided at the top of the shroud 38 and a flexible sleeve 220, which also comprises part of the conduit or guide means 210, connects that opening to the inlet 16. The sleeve 220 is tightly bound to a cylindrical surface 381 of the shroud 38 to move with that member.
The sleeve 220 is preferably made of neoprene, an other elastomer, or other material compatible with the oil-refrigerant environment. A flexible convoluted metal coupling also may be employed. The sleeve 220 mates with a cylindrical depending flange surface 221 of inlet 16 against which it may move vertically in a limited telescoping action in response to movement of the motor-compressing mechanism on its mounts 70.
The guide means 210 thus serve to direct the cooling suction gas to and over the electric motor and serve to lessen transfer of heat from the relatively hot portions of the compressor: the cylinders 23, the mufflers 66 and discharge line 68. The effect is to run the motor 24 at a lower temperature than the just mentioned. components. Since heat is dissipated through the housing 10 to which these components are juxtaposed, their higher temperature is acceptable.
OPERATION In operation, relatively cool suction gas is taken from the inlet 16 and guided over and around the rotor 36 and stator 34 of motor 24 by means of the sleeve 220 and shroud 38. There it takes on heat and cools the motor windings. Any liquid droplets of refrigerant are caused to vaporize by the added heat. The heavier oil droplets collect at an intermediate zone 225 from which they pass via passageways, such as the passageway 236, to the area of the crank shaft 28 or else via passageways, such as the passageway 227, to the area between the mechanism 18 and its housing 10 to ultimately collect in the oil sump at the housings bottom.
The suction gas after passing to positions that are es sentially downstream from motor 24 is drawn into the input ports 40 for compressing in cylinders 23.
in response to movement of the compressing mechanism on its spring mounts the flexible sleeve 220 flexes and telescopes up and down relative to the surface 221 of the inlet fixture 16. The other section of the guide means 210, the shroud 38, also flexes to a lesser degree to accommodate motion of the compressor mechanism 18. Thus, the guide means 210 serves not only to improve the performance of the compressor by cooling the motor 24 and achieving a better separation between gas and oil, but also serves as an aid to the suspending and stabilization of the compressor mechanism 18 and as a vibration damper and noise suppressor.
The guide means need confine only a major part of the suction gas to be efiective, although it would be desirable to guide all of the suction gases to the motor 24. As the suction gas is in communication with both sides of the sleeve 220 and shroud 38, there is only a small pressure difference and consequently only a reasonably loose fit between, for example, the sleeve 22) and the surface 221 need be used to achieve flow of the major part of the suction gas over the motor winding.
As should now be apparent a new and improved hermetic refrigeration compressor has been described which has improved provision for electric motor heat dissipation, separation of oil and suction gas and also provides for vibration damping.
While for definiteness the present invention has been described in a preferred embodiment of a generally vertically disposed positive displacement hermetic refrigeration compressonit should be understood that the principles of the present invention may be applied to other types of hermetic refrigeration compressors including, but not limited to, the generally horizontally disposed positive displacement hermetic refrigeration compressor.
While a particular embodiment of the invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true scope of the invention.
What is claimed is:
l. In a hermetic refrigeration compressor of the type having a closed housing with a suction gas inlet and a compressed gas outlet therefrom, a compressing mechanism mounted in the housing and having an output which is coupled to the housing outlet, and an electric motor also mounted within the housing and coupled to drive the compressing mechanism and where the compressing mechanism is spring mounted, the improvement comprising:
guide means within said housing for guiding during operation at least a major part of the suction gas from the housing suction gas inlet to and through the electric motor prior to the flow of such gas to the compressing mechanism, and
said guide means including a flexible gas transfer coupling for absorbing vibration and movement;
said guide means includes a flexible sleeve as said gas transfer coupling, and a shroud over said motor, which shroud is connected to said sleeve and to the compressing mechanism to substantially enclose said motor,
whereby the electric motor is cooled during operation by the suction gas.
2. The improvement as defined in claim 1, for a generally vertically disposed hermetic refrigeration compressor, wherein:
said flexible sleeve is mounted generally vertically and coupled with the housing suction gas inlet for telescopic motion therewith in response to vertical motion of said sprung compressing mechanism.
3. The improvement as defined in claim 2, wherein:
said flexible sleeve is of a hollow cylindrical configuration and is constructed of an oil and refrigerant resistant elastomer.
4. A hermetic refrigeration compressor for an air conditioning refrigeration system comprising, in combination:
a housing (10) in the form of a closed and sealed shell having a suction gas inlet (16) and a compressed gas outlet (2M9);
an electric motor (24) comprising a rotor (36) and stator (34), mounted within said housing;
a compressing mechanism (18) of the positive displacement type within said housing and having a driven crank shaft (28) which is driven by the rotor of said motor, a compressed gas outlet coupled to said housing outlet and a suction gas inlet;
a plurality of spring mounts for mounting said compressing mechanism and said motor within said housing; and
a conduit (210, 211) disposed within said housing between said housing inlet and said compressing mechanism and enshrouding said motor, said conduit serving to guide, during operation, suction gas from said housing inlet to said motor;
said compressing mechanism and said conduit being cooperatively disposed so as to have said compressing mechanisms gas inlet as well as passageways to the volume between said compressing mechanism and said housing beyond said motor so that the flow of gas to said compressing mechanisms gas inlet and to said volume is through said motor;
whereby said motor may be cooled by the suction gas from the housing inlet.
5. A hermetic refrigeration compressor for an air conditioning refrigeration system comprising, in combination:
a housing (10) in the form of a closed and sealed shell having a suction gas inlet (16) and a compressed gas outlet (200);
an electric motor (24) comprising a rotor (36) and stator (34), mounted within said housing;
a compressing mechanism (18) of the positive displacement type within said housing and having a driven crank shaft (28) which is driven by the rotor of said motor, compressed gas outlet coupled to said housing outlet and a suction gas inlet;
a plurality of spring mounts (70) for mounting said compressing mechanism and said motor within said housing; and
means (210) for guiding suction gas from said housing inlet to and through said motor;
said compressing mechanism and said guide means being cooperatively disposed so as to have said compressing mechanisms gas inlet as well as 5 compressed gas outlet therefrom,
passageways to the volume between said compressing mechanism and said housing positioned substantially downstream of said motor;
said compressing mechanism and said motor are mounted in a generally vertical array;
said spring mounts are connected about the interior walls of said housing in a vertical array;
said housing suction gas inlet is inthe upper part of said housing;
said electric motor is mounted atop of said compressing mechanism;
said guide means includes:
a generally dome shaped shroud (38) affixed to said compressing mechanism, covering said motor, and having an opening defined in the top thereof;
a flexible sleeve (220) affixed to said shroud at its said top opening and communicating the interior of said shroud with said suction gas inlet; and
said suction gas inlet having a mating surface (221) for receiving in a vertical telescopic manner said flexible sleeve,
whereby said motor may be cooled by the suction gas from the housing inlet.
6. In a hermetic refrigeration compressor of the type having a closed housing with a suction gas inlet and a a compressing mechanism mounted in the housing and having an output which is coupled to the housing outlet, and an electric motor also mounted within the housing and coupled to drive the compressing mechanism and where 0 the compressing mechanism is spring mounted, the improvement comprising:
a conduit mounted between said input and said compressing mechanism and enshrouding said motor, for guiding, during operation, suction gas from the housing suction gas inlet to and through the motor prior to the flow of such gas to the compressing mechanism, and
said conduit including a sleeve and a shroud over said motor, which shroud is connected to said sleeve and to the compressing mechanism, and which sleeve and shroud are connected together in a manner allowing for telescopic movement therebetween,
whereby the electric motor is cooled during operation by the suction gas.
Claims (6)
1. In a hermetic refrigeration compressor of the type having a closed housing with a suction gas inlet and a compressed gas outlet therefrom, a compressing mechanism mounted in the housing and having an output which is coupled to the housing outlet, and an electric motor also mounted within the housing and coupled to drive the compressing mechanism and where the compressing mechanism is spring mounted, the improvement comprising: guide means within said housing for guiding during operation at least a major part of the suction gas from the housing suction gas inlet to and through the electric motor prior to the flow of such gas to the compressing mechanism, and said guide means including a flexible gas transfer coupling for absorbing vibration and movement; said guide means includes a flexible sleeve as said gas transfer coupling, and a shroud over said motor, which shroud is connected to said sleeve and to the compressing mechanism to substantially enclose said motor, whereby the electric motor is cooled during operation by the suction gas.
2. The improvement as defined in claim 1, for a generally vertically disposed hermetic refrigeration compressor, wherein: said flexible sleeve is mounted generally vertically and coupled with the housing suction gas inlet for telescopic motion therewith in response to vertical motion of said sprung compressing mechanism.
3. The improvement as defined in claim 2, wherein: said flexible sleeve is of a hollow cylindrical configuration and is constructed of an oil and refrigerant resistant elastomer.
4. A hermetic refrigeration compressor for an air conditioning refrigeration system comprising, in combination: a housing (10) in the form of a closed and sealed shell having a suction gas inlet (16) and a compressed gas outlet (200); an electric motor (24) comprising a rotor (36) and stator (34), mounted within said housing; a compressing mechanism (18) of the positive displacement type within said housing and having a driven crank shaft (28) which is driven by the rotor of said motor, a compressed gas outlet coupled to said housing outlet and a suction gas inlet; a plurality of spring mounts (70) for mounting saiD compressing mechanism and said motor within said housing; and a conduit (210, 211) disposed within said housing between said housing inlet and said compressing mechanism and enshrouding said motor, said conduit serving to guide, during operation, suction gas from said housing inlet to said motor; said compressing mechanism and said conduit being cooperatively disposed so as to have said compressing mechanism''s gas inlet as well as passageways to the volume between said compressing mechanism and said housing beyond said motor so that the flow of gas to said compressing mechanism''s gas inlet and to said volume is through said motor; whereby said motor may be cooled by the suction gas from the housing inlet.
5. A hermetic refrigeration compressor for an air conditioning refrigeration system comprising, in combination: a housing (10) in the form of a closed and sealed shell having a suction gas inlet (16) and a compressed gas outlet (200); an electric motor (24) comprising a rotor (36) and stator (34), mounted within said housing; a compressing mechanism (18) of the positive displacement type within said housing and having a driven crank shaft (28) which is driven by the rotor of said motor, compressed gas outlet coupled to said housing outlet and a suction gas inlet; a plurality of spring mounts (70) for mounting said compressing mechanism and said motor within said housing; and means (210) for guiding suction gas from said housing inlet to and through said motor; said compressing mechanism and said guide means being cooperatively disposed so as to have said compressing mechanism''s gas inlet as well as passageways to the volume between said compressing mechanism and said housing positioned substantially downstream of said motor; said compressing mechanism and said motor are mounted in a generally vertical array; said spring mounts are connected about the interior walls of said housing in a vertical array; said housing suction gas inlet is in the upper part of said housing; said electric motor is mounted atop of said compressing mechanism; said guide means includes: a generally dome shaped shroud (38) affixed to said compressing mechanism, covering said motor, and having an opening defined in the top thereof; a flexible sleeve (220) affixed to said shroud at its said top opening and communicating the interior of said shroud with said suction gas inlet; and said suction gas inlet having a mating surface (221) for receiving in a vertical telescopic manner said flexible sleeve, whereby said motor may be cooled by the suction gas from the housing inlet.
6. In a hermetic refrigeration compressor of the type having a closed housing with a suction gas inlet and a compressed gas outlet therefrom, a compressing mechanism mounted in the housing and having an output which is coupled to the housing outlet, and an electric motor also mounted within the housing and coupled to drive the compressing mechanism and where the compressing mechanism is spring mounted, the improvement comprising: a conduit mounted between said input and said compressing mechanism and enshrouding said motor, for guiding, during operation, suction gas from the housing suction gas inlet to and through the motor prior to the flow of such gas to the compressing mechanism, and said conduit including a sleeve and a shroud over said motor, which shroud is connected to said sleeve and to the compressing mechanism, and which sleeve and shroud are connected together in a manner allowing for telescopic movement therebetween, whereby the electric motor is cooled during operation by the suction gas.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7693970A | 1970-09-30 | 1970-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3689203A true US3689203A (en) | 1972-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US76939A Expired - Lifetime US3689203A (en) | 1970-09-30 | 1970-09-30 | Heremetic refrigeration compressor |
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| US (1) | US3689203A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894815A (en) * | 1973-01-26 | 1975-07-15 | Sundstrand Corp | Bolted hermetic refrigerent gas compressor with electric motor drive |
| JPS5217206A (en) * | 1975-07-31 | 1977-02-09 | Mitsubishi Heavy Ind Ltd | Closed-type motor compressor |
| US4086032A (en) * | 1976-08-23 | 1978-04-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Sealed type motor-compressor |
| FR2370244A1 (en) * | 1976-11-08 | 1978-06-02 | Danfoss As | REFRIGERATION MACHINE WITH COMPRESSOR UNIT ELASTICALLY SUSPENDED IN A CASING |
| US4106881A (en) * | 1976-04-21 | 1978-08-15 | Danfoss A/S | Encapsulated motor compressor for refrigerators |
| JPS5523500U (en) * | 1979-08-21 | 1980-02-15 | ||
| DE3149682A1 (en) * | 1981-02-13 | 1982-09-16 | Mitsubishi Denki K.K., Tokyo | HERMETIC ENGINE COMPRESSOR |
| US4370104A (en) * | 1980-07-22 | 1983-01-25 | White Consolidated Industries, Inc. | Suction muffler for refrigeration compressor |
| US4549859A (en) * | 1983-07-12 | 1985-10-29 | Aspera S.P.A. | Suspension system for hermetic motor-compressors of refrigerators and the like |
| US4560329A (en) * | 1983-10-20 | 1985-12-24 | Mitsubishi Denki Kabushiki Kaisha | Strainer device for rotary compressor |
| US5451727A (en) * | 1992-12-21 | 1995-09-19 | Goldstar Co., Ltd. | Noise suppressing apparatus for hermetic reciprocating compressor |
| DE4411191A1 (en) * | 1994-03-30 | 1995-10-05 | Danfoss Compressors Gmbh | Refrigerant compressor arrangement |
| US5980222A (en) * | 1997-11-13 | 1999-11-09 | Tecumseh Products Company | Hermetic reciprocating compressor having a housing divided into a low pressure portion and a high pressure portion |
| US5988990A (en) * | 1997-02-24 | 1999-11-23 | Samsung Electronics Co., Ltd. | Apparatus for separating lubricating oil from refrigerant in a hermetic compressor |
| DE102008025322A1 (en) * | 2008-05-27 | 2009-12-03 | Danfoss A/S | Refrigerator compressor, particularly semi-hermetic refrigerator compressor, has housing and motor, where rotor of motor is connected with crank shaft |
| US20220034524A1 (en) * | 2018-11-16 | 2022-02-03 | Mitsubishi Electric Corporation | Outdoor unit of air-conditioning apparatus |
| US11512693B2 (en) * | 2020-06-17 | 2022-11-29 | Lg Electronics Inc. | Linear compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2107819A (en) * | 1935-01-04 | 1938-02-08 | Faber Ernst | Vacuum cleaner |
| US2857746A (en) * | 1953-07-08 | 1958-10-28 | Nash Kelvinator Corp | Refrigerating apparatus |
| US3171589A (en) * | 1963-03-08 | 1965-03-02 | Carrier Corp | Hermetic motor compressor unit |
-
1970
- 1970-09-30 US US76939A patent/US3689203A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2107819A (en) * | 1935-01-04 | 1938-02-08 | Faber Ernst | Vacuum cleaner |
| US2857746A (en) * | 1953-07-08 | 1958-10-28 | Nash Kelvinator Corp | Refrigerating apparatus |
| US3171589A (en) * | 1963-03-08 | 1965-03-02 | Carrier Corp | Hermetic motor compressor unit |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894815A (en) * | 1973-01-26 | 1975-07-15 | Sundstrand Corp | Bolted hermetic refrigerent gas compressor with electric motor drive |
| JPS5217206A (en) * | 1975-07-31 | 1977-02-09 | Mitsubishi Heavy Ind Ltd | Closed-type motor compressor |
| JPS5327482B2 (en) * | 1975-07-31 | 1978-08-09 | ||
| US4106881A (en) * | 1976-04-21 | 1978-08-15 | Danfoss A/S | Encapsulated motor compressor for refrigerators |
| US4086032A (en) * | 1976-08-23 | 1978-04-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Sealed type motor-compressor |
| FR2370244A1 (en) * | 1976-11-08 | 1978-06-02 | Danfoss As | REFRIGERATION MACHINE WITH COMPRESSOR UNIT ELASTICALLY SUSPENDED IN A CASING |
| JPS5916548Y2 (en) * | 1979-08-21 | 1984-05-15 | 三菱重工業株式会社 | Hermetic electric compressor |
| JPS5523500U (en) * | 1979-08-21 | 1980-02-15 | ||
| US4370104A (en) * | 1980-07-22 | 1983-01-25 | White Consolidated Industries, Inc. | Suction muffler for refrigeration compressor |
| US4487555A (en) * | 1981-02-13 | 1984-12-11 | Mitsubishi Denki Kabushiki Kaisha | Hermetic motor compressor |
| DE3149682A1 (en) * | 1981-02-13 | 1982-09-16 | Mitsubishi Denki K.K., Tokyo | HERMETIC ENGINE COMPRESSOR |
| US4549859A (en) * | 1983-07-12 | 1985-10-29 | Aspera S.P.A. | Suspension system for hermetic motor-compressors of refrigerators and the like |
| US4560329A (en) * | 1983-10-20 | 1985-12-24 | Mitsubishi Denki Kabushiki Kaisha | Strainer device for rotary compressor |
| US5451727A (en) * | 1992-12-21 | 1995-09-19 | Goldstar Co., Ltd. | Noise suppressing apparatus for hermetic reciprocating compressor |
| DE4411191A1 (en) * | 1994-03-30 | 1995-10-05 | Danfoss Compressors Gmbh | Refrigerant compressor arrangement |
| US5988990A (en) * | 1997-02-24 | 1999-11-23 | Samsung Electronics Co., Ltd. | Apparatus for separating lubricating oil from refrigerant in a hermetic compressor |
| US5980222A (en) * | 1997-11-13 | 1999-11-09 | Tecumseh Products Company | Hermetic reciprocating compressor having a housing divided into a low pressure portion and a high pressure portion |
| US6155805A (en) * | 1997-11-13 | 2000-12-05 | Tecumseh Products Company | Hermetic compressor having acoustic insulator |
| DE102008025322A1 (en) * | 2008-05-27 | 2009-12-03 | Danfoss A/S | Refrigerator compressor, particularly semi-hermetic refrigerator compressor, has housing and motor, where rotor of motor is connected with crank shaft |
| DE102008025322B4 (en) * | 2008-05-27 | 2010-03-25 | Danfoss A/S | Refrigerant compressor |
| US20220034524A1 (en) * | 2018-11-16 | 2022-02-03 | Mitsubishi Electric Corporation | Outdoor unit of air-conditioning apparatus |
| US11959650B2 (en) * | 2018-11-16 | 2024-04-16 | Mitsubishi Electric Corporation | Outdoor unit of air-conditioning apparatus |
| US11512693B2 (en) * | 2020-06-17 | 2022-11-29 | Lg Electronics Inc. | Linear compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: YORK INTERNATIONAL CORPORATION, 631 SOUTH RICHLAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE;ASSIGNOR:BORG-WARNER CORPORATION;REEL/FRAME:004676/0360 Effective date: 19860609 |
|
| AS | Assignment |
Owner name: CANADIAN IMPERIAL BANK OF COMMERCE Free format text: SECURITY INTEREST;ASSIGNOR:YORK INTERNATIONAL CORPORATION;REEL/FRAME:005156/0705 Effective date: 19881215 |