US3871800A - Hermetically sealed compressor suction tube assembly - Google Patents

Hermetically sealed compressor suction tube assembly Download PDF

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Publication number
US3871800A
US3871800A US449720A US44972074A US3871800A US 3871800 A US3871800 A US 3871800A US 449720 A US449720 A US 449720A US 44972074 A US44972074 A US 44972074A US 3871800 A US3871800 A US 3871800A
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United States
Prior art keywords
suction tube
casing
compressor
sleeve member
end portion
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Expired - Lifetime
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US449720A
Inventor
Curtis R Slayton
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General Electric Co
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General Electric Co
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Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US449720A priority Critical patent/US3871800A/en
Priority to DE19752508002 priority patent/DE2508002A1/en
Priority to IT20884/75A priority patent/IT1033388B/en
Priority to FR7507130A priority patent/FR2264202B1/fr
Priority to JP50028116A priority patent/JPS50132511A/ja
Application granted granted Critical
Publication of US3871800A publication Critical patent/US3871800A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/806—Pipes for fluids; Fittings therefor
    • 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

  • a steel tubular fitting including an end portion extending into the reduced portion of the sleeve member and a shoulder portion extending into the enlarged portion of the sleeve member that simultaneously compresses the sleeve member in the suction passage and connector to effectively seal the compressor casing and suction tube assembly to the compressor.
  • flux is used to protect the joint from oxidation and to remove any oxides which may form during the brazing or soldering procedure. While the use of flux insures an acceptable fluid tight joint at the compressor casing it also creates an additional step in the manufacturing of the hermetic compressor in that the flux and residue caused by the joining procedure must be completely removed from the casing prior to the final sealing of the compressor.
  • a hermetic compressor unit comprising a steel casing and a compressor including a cylinder or compressor block which may be press fit or heat shrunk into contact with the casing side wall.
  • the block includes a suction passage opening and the casing is provided with a hole aligned with and larger than the suction passage.
  • a tubular steel connector having an end portion extending into the casing hole to a point adjacent the suction passage opening in the block is welded to the casing.
  • a tubular sleeve member having a higher ductility than steel includes a reduced end portion located in the suction passage.
  • a tubular steel fitting having an end portion extends into the sleeve in the suction passage and an enlarged portion extends into the sleeve in the steel connector for simultaneously compressing said sleeve member in the suction passage and connector to seal the casing and suction tube connector to the compressor cylinder block.
  • FIG. 1 is a horizontal sectional view of a refrigerant compressor unit incorporating the present invention
  • FIG. 2 is an enlarged section view taken along line 22 of FIG. 1 illustrating the construction of the connector portion of the unit
  • FIG. 3 is a view'similar to FIG. 2 illustrating one step in the manufacture of the compressor connector portion.
  • FIG 1 of the drawings there is illustrated a hermetic rotary compressor unit comprising a cylindrical casing 10 in which there is disposed a rotary compressor 12.
  • the compressor includes a cylinder block 14 having an inner cylindrical surface 16 which in combination with an end plate 18 and the second end plate (not shown) defines a compressor cylinder 20 containing a rotor 22.
  • the cylinder block 12 includes diametrically opposed legs or extensions 24 having arcuate surfaces 26 engaging the inner surface of the cylindrical casing wall 10.
  • the cylinder block may be either pressed into the casing or the casing heat shrunk onto the cylinder block.
  • a suction passage 28 extends through the cylinder block from one of the arcuate surfaces 26 and into the compressor cylinder 20.
  • the outer end of this passage is in axial alignment with a flanged hole 30 in the casing side wall 10.
  • the hole 30 has a somewhat larger diameter than the passage 28.
  • a compressor of this general construction is shown in US. Pat. No. 3,568,7l2-Rinehart. to which reference is made for a more detailed description of its construction and operation.
  • a suction tube assembly 32 which comprises a tubular steel connector or conduit 34 secured to the compressor casing 10, a tubular sleeve member 36 and a tubular steel fitting 38.
  • the steel connector 34 has a reduced end portion 40 extending into or through the hole 30 to a point adjacent the arcute surface 26 of the compressor cylinder block 14.
  • the end portion 40 is preferably of frustum configuration that permits the end portion 40 of the connector 34 to project into the hole 30 and facilitate alignment of the connector 34 relative to the hole 30 and passageway 28.
  • the end portion 40 of the connector 34 is welded to the casing 10 at the flange portion of the hole 30 as indicated at 42 to form a fluid tight seal between the casing 10 and the connector 34.
  • the opening 37 of the connector 34 adjacent the surface 26 has a diameter smaller than the main tubular body portion of the connector 34 but larger than the passageway 28 in the cylinder 14.
  • the tubular sleeve member 36 has been chosen from the group of metals having a higher ductility than steel. While in the present embodiment aluminum is used to fabricate member 36, it should be understood that other ductile materials relative to steel may be employed.
  • the aluminum member 36 has a reduced end portion 44 which extends into the cylinder passage 28 and an enlarged portion 46 extending into the connector 34 adjacent the opening 37.
  • the tubular steel fitting 38 is then employed to me- 3 chanically connegt the connector 34 to the passage 28.
  • the tubular fitting 38 is inserted throught'lie connector 34 and into the aluminum sleeve 36't6 the position shown in FIG. 2.
  • Fitting 38 includes a reduced end portion 48 which is press fit into the end portion 44 of sleeve 36in the passage area 28 and a shoulder or enlarged portion 50 press fit into portion 46 of the sleeve 36 that is located in the opening 37 of the connector 34.
  • the tubular steel fitting 38 simultaneously compresses the aluminum sleeve member 38 in two areas or critical points; namely, area A in the passageway 28 and area B in the opening 37 of connector 34.
  • the liquid tight seal provided at points A and B are effective to mechanically seal the compressor casing and suction tube assembly to the compressor 12.
  • Means are also provided in the present embodiment of the invention to prevent galling of the relatively soft sleeve 36 in areas A and B by the steel fitting 38 that may result in the introduction of foreign particles into the hermetic compressor.
  • the leading edge of fitting 38 is tapered so that the sleeve 36 in area A is compressed by a wedging action as fitting 38 if forced into place.
  • the leading edge of the enlarged portion 50 is provided with a radius which minimizes the possibility of galling in area B. In the event galling does occur in area B, it will be contained in a catch or receiving area 52 that is defined partially by a circumferentially disposed groove formed in the fitting 38.
  • the end of the line 54 is slip fit onto the connector 34 and adhesively bonded thereto by use of a suitable adhesive such as an epoxy cement.
  • a suitable adhesive such as an epoxy cement.
  • the use of a steel connector 34 permits the use of a welding-procedure in attaching the connector 34 to the steel casing 10 that is relatively inexpensive and provides a reliable fluid tight seal. Further, the use of a steel connector 34 provides a compressor that is adaptable for use with either an aluminum or copper refrigeration system in that the adhesive joint is compatible with both systems.
  • a hermetic compressor unit comprising:
  • a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall;
  • said casing having an opening aligned with and larger than said passage
  • a suction tube connector including an end portion ex tending into said opening in axial alignment with said suction passage, and having an opening larger than said passage;
  • tubular sleeve member being of greater ductility than the suction tube connector, the sleeve having a reduced end portion extending into said passage and an enlarged portion extending into the end portion of said suction tube connector;
  • a tubular fitting having an end portion extending into said reduced end portion of said sleeve member and a shoulder portion extending into said enlarged portion of said sleeve member to simultaneously radially compress said sleeve member in said passageway and said end portion of said suction tube connector to'seal the casing and suction tube connector to the compressor cylinder block.
  • suction tube connector and said tubular fitting is steel, and said tubular sleeve member is aluminum.
  • a compressor according to claim 1 wherein a circumferentially disposed receiving area is provided adjacent said shoulder portion of said fitting to entrap foreign matter that may be caused by the compression action of said shoulder portion on said sleeve.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)

Abstract

A hermetic compressor unit comprising a hermetic casing containing a compressor including a cylindrical block having an arcuate surface engaging the inner surface of the casing and a suction tube assembly for connecting the compressor to a refrigeration system. The suction tube assembly comprises a steel tubular connector including an end portion extending into an opening in the casing and a sleeve member having a higher ductility than steel that includes a reduced end extending into a suction passage in the block and an enlarged portion engaging the suction tube connector. A steel tubular fitting including an end portion extending into the reduced portion of the sleeve member and a shoulder portion extending into the enlarged portion of the sleeve member that simultaneously compresses the sleeve member in the suction passage and connector to effectively seal the compressor casing and suction tube assembly to the compressor.

Description

United States Patent [191 [111 3,871,800 Slayton Mar. 18, 1975 HERMETICALLY SEALED COMPRESSOR [57] ABSTRACT SUCTION TUBE ASSEMBLY [75] Inventor: Curtis R. Slayton, Fern Creek, Ky. [73] Assignee: General Electric Company,
{22] Filed: Mar. 11, 1974 [2]] Appl. No.: 449,720
[52] US. Cl. 418/248 [51] Int. Cl. F04b 17/00 [58] Field of Search 418/248; 417/902; 285/158 [56] References Cited UNITED STATES PATENTS 2,447,259 8/1948 Lucke i 285/158 2,764,427 9/1956 Andrus 285/158 X 3,209,991 10/1965 Sauber 417/902 X 3,618,990 11/1971 Falke 285/158 X 3,767,334 lO/l973 Rinehart 418/248 Primary E.raminerC. J. Husar Assistant Examiner-Leonard Smith higher ductility than steel that includes a reduced end extending into a suction passage in the block and an enlarged portion engaging the suction tube connector.
A steel tubular fitting including an end portion extending into the reduced portion of the sleeve member and a shoulder portion extending into the enlarged portion of the sleeve member that simultaneously compresses the sleeve member in the suction passage and connector to effectively seal the compressor casing and suction tube assembly to the compressor.
3 Claims, 3 Drawing Figures HERMETICALLY SEALED COMPRESSOR SUCTION TUBE ASSEMBLY BACKGROUND OF THE INVENTION aluminum. When using such materials, the usual brazing and soldering techniques have been available for assuring a fluid tight joint between the copper or aluminum conduit and the steel compressor casing during final connection of the compressor to the system. Presently available hermetic compressors such as the one disclosed in US. Pat. No. 3,767,334 by Dean C. Rinehart, assigned to General Electric Co., assignee of the present invention, shows a suction tube assembly employing an aluminum conduit joined to the steel casing and a steel tubular fitting including an end portion press fit into the compressor and a shoulder portion engaging the aluminum conduit. When the copper or aluminum suction tube assembly conduits are brazed or soldered to the steel compressor casing, flux is used to protect the joint from oxidation and to remove any oxides which may form during the brazing or soldering procedure. While the use of flux insures an acceptable fluid tight joint at the compressor casing it also creates an additional step in the manufacturing of the hermetic compressor in that the flux and residue caused by the joining procedure must be completely removed from the casing prior to the final sealing of the compressor.
It is therefore an object of the present invention to provide a flux free connecting system that mechanically seals the compressor casing and the suction tube assembly to the compressor.
SUMMARY OF THE INVENTION The present invention is particularly directed to an improved hermetically sealed compressor unit assembly adapted to assure a fluid tight connection between the compressor cylinder and the suction tube assembly. In accordance with the illustrated embodiment of the invention, there is provided a hermetic compressor unit comprising a steel casing and a compressor including a cylinder or compressor block which may be press fit or heat shrunk into contact with the casing side wall. The block includes a suction passage opening and the casing is provided with a hole aligned with and larger than the suction passage. A tubular steel connector having an end portion extending into the casing hole to a point adjacent the suction passage opening in the block is welded to the casing. A tubular sleeve member having a higher ductility than steel includes a reduced end portion located in the suction passage. A tubular steel fitting having an end portion extends into the sleeve in the suction passage and an enlarged portion extends into the sleeve in the steel connector for simultaneously compressing said sleeve member in the suction passage and connector to seal the casing and suction tube connector to the compressor cylinder block.
BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings:
FIG. 1 is a horizontal sectional view of a refrigerant compressor unit incorporating the present invention;
FIG. 2 is an enlarged section view taken along line 22 of FIG. 1 illustrating the construction of the connector portion of the unit; and
FIG. 3 is a view'similar to FIG. 2 illustrating one step in the manufacture of the compressor connector portion.
DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to FIG 1 of the drawings, there is illustrated a hermetic rotary compressor unit comprising a cylindrical casing 10 in which there is disposed a rotary compressor 12. The compressor includes a cylinder block 14 having an inner cylindrical surface 16 which in combination with an end plate 18 and the second end plate (not shown) defines a compressor cylinder 20 containing a rotor 22.
The cylinder block 12 includes diametrically opposed legs or extensions 24 having arcuate surfaces 26 engaging the inner surface of the cylindrical casing wall 10. In the manufacture of such compressors, the cylinder block may be either pressed into the casing or the casing heat shrunk onto the cylinder block.
A suction passage 28 extends through the cylinder block from one of the arcuate surfaces 26 and into the compressor cylinder 20. The outer end of this passage, as illustrated in FIGS. 2 and 3 of the drawings. is in axial alignment with a flanged hole 30 in the casing side wall 10. The hole 30 has a somewhat larger diameter than the passage 28. A compressor of this general construction is shown in US. Pat. No. 3,568,7l2-Rinehart. to which reference is made for a more detailed description of its construction and operation.
In accordance with the present invention means are provided for connecting the suction line of a refrigeration system to the suction passage 28 To this end in one embodiment of the invention, as shown in FIGS. 2 and 3, there is provided a suction tube assembly 32 which comprises a tubular steel connector or conduit 34 secured to the compressor casing 10, a tubular sleeve member 36 and a tubular steel fitting 38. The steel connector 34 has a reduced end portion 40 extending into or through the hole 30 to a point adjacent the arcute surface 26 of the compressor cylinder block 14. The end portion 40 is preferably of frustum configuration that permits the end portion 40 of the connector 34 to project into the hole 30 and facilitate alignment of the connector 34 relative to the hole 30 and passageway 28. The end portion 40 of the connector 34 is welded to the casing 10 at the flange portion of the hole 30 as indicated at 42 to form a fluid tight seal between the casing 10 and the connector 34. In the present embodiment, the opening 37 of the connector 34 adjacent the surface 26 has a diameter smaller than the main tubular body portion of the connector 34 but larger than the passageway 28 in the cylinder 14. The tubular sleeve member 36 has been chosen from the group of metals having a higher ductility than steel. While in the present embodiment aluminum is used to fabricate member 36, it should be understood that other ductile materials relative to steel may be employed. The aluminum member 36 has a reduced end portion 44 which extends into the cylinder passage 28 and an enlarged portion 46 extending into the connector 34 adjacent the opening 37. The tubular steel fitting 38 is then employed to me- 3 chanically connegt the connector 34 to the passage 28. Referring to FIG. 3 the tubular fitting 38 is inserted throught'lie connector 34 and into the aluminum sleeve 36't6 the position shown in FIG. 2. Fitting 38 includes a reduced end portion 48 which is press fit into the end portion 44 of sleeve 36in the passage area 28 and a shoulder or enlarged portion 50 press fit into portion 46 of the sleeve 36 that is located in the opening 37 of the connector 34. ln effect, the tubular steel fitting 38 simultaneously compresses the aluminum sleeve member 38 in two areas or critical points; namely, area A in the passageway 28 and area B in the opening 37 of connector 34. The liquid tight seal provided at points A and B are effective to mechanically seal the compressor casing and suction tube assembly to the compressor 12.
It should be noted that the use of a ductile sleeve member 36 allows greater tolerance flexibility. This is expecially true in the passage area where steel tocast iron seals are possible due to the presence of graphite in the cast iron, However, they require extremely close tolerances and as a result create manufacturing difficulties.
Means are also provided in the present embodiment of the invention to prevent galling of the relatively soft sleeve 36 in areas A and B by the steel fitting 38 that may result in the introduction of foreign particles into the hermetic compressor. To this end the leading edge of fitting 38 is tapered so that the sleeve 36 in area A is compressed by a wedging action as fitting 38 if forced into place. The leading edge of the enlarged portion 50 is provided with a radius which minimizes the possibility of galling in area B. In the event galling does occur in area B, it will be contained in a catch or receiving area 52 that is defined partially by a circumferentially disposed groove formed in the fitting 38.
For assembly to the suction line 54 of a refrigeration system, the end of the line 54 is slip fit onto the connector 34 and adhesively bonded thereto by use of a suitable adhesive such as an epoxy cement. The use of a steel connector 34 permits the use of a welding-procedure in attaching the connector 34 to the steel casing 10 that is relatively inexpensive and provides a reliable fluid tight seal. Further, the use ofa steel connector 34 provides a compressor that is adaptable for use with either an aluminum or copper refrigeration system in that the adhesive joint is compatible with both systems.
While there has been shown and described a specific embodiment of the invention, it will be understood that it is not limited thereto and it is intended by the appended claims to cover all such modifications as fall within the true spirit and scope of the invention.
I claim:
1. A hermetic compressor unit comprising:
a casing including aside wall;
a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall;
a passage in said block opening into said outer surface;
said casing having an opening aligned with and larger than said passage;
a suction tube connector including an end portion ex tending into said opening in axial alignment with said suction passage, and having an opening larger than said passage;
a tubular sleeve member being of greater ductility than the suction tube connector, the sleeve having a reduced end portion extending into said passage and an enlarged portion extending into the end portion of said suction tube connector; and
a tubular fitting having an end portion extending into said reduced end portion of said sleeve member and a shoulder portion extending into said enlarged portion of said sleeve member to simultaneously radially compress said sleeve member in said passageway and said end portion of said suction tube connector to'seal the casing and suction tube connector to the compressor cylinder block.
2. A compresser according to claim 1 wherein said suction tube connector and said tubular fitting is steel, and said tubular sleeve member is aluminum.
3. A compressor according to claim 1 wherein a circumferentially disposed receiving area is provided adjacent said shoulder portion of said fitting to entrap foreign matter that may be caused by the compression action of said shoulder portion on said sleeve.

Claims (3)

1. A hermetic compressor unit comprising: a casing including a side wall; a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall; a passage in said block opening into said outer surface; said casing having an opening aligned with and larger than said passage; a suction tube connector including an end portion extending into said opening in axial alignment with said suction passage, and having an opening larger than said passage; a tubular sleeve member being of greater ductility than the suction tube connector, the sleeve having a reduced end portion extending into said passage and an enlarged portion extending into the end portion of said suction tube connector; and a tubular fitting having an end portion extending into said reduced end portion of said sleeve member and a shoulder portion extending into said enlarged portion of said sleeve member to simultaneously radially compress said sleeve member in said passageway and said end portion of said suction tube connector to seal the casing and suction tube connector to the comPressor cylinder block.
2. A compresser according to claim 1 wherein said suction tube connector and said tubular fitting is steel, and said tubular sleeve member is aluminum.
3. A compressor according to claim 1 wherein a circumferentially disposed receiving area is provided adjacent said shoulder portion of said fitting to entrap foreign matter that may be caused by the compression action of said shoulder portion on said sleeve.
US449720A 1974-03-11 1974-03-11 Hermetically sealed compressor suction tube assembly Expired - Lifetime US3871800A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US449720A US3871800A (en) 1974-03-11 1974-03-11 Hermetically sealed compressor suction tube assembly
DE19752508002 DE2508002A1 (en) 1974-03-11 1975-02-25 HERMETICALLY SEALED INTAKE PIPE ARRANGEMENT FOR COMPRESSOR
IT20884/75A IT1033388B (en) 1974-03-11 1975-03-04 HERMETICALLY SEALED SUCTION PIPE COMPLEX FOR COMPRESSOR
FR7507130A FR2264202B1 (en) 1974-03-11 1975-03-07
JP50028116A JPS50132511A (en) 1974-03-11 1975-03-10

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US3871800A true US3871800A (en) 1975-03-18

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DE (1) DE2508002A1 (en)
FR (1) FR2264202B1 (en)
IT (1) IT1033388B (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240774A (en) * 1979-02-15 1980-12-23 General Electric Company Hermetically sealed compressor suction tube and method of assembly
EP0183332A1 (en) * 1984-11-13 1986-06-04 Tecumseh Products Company Suction tube seal for a rotary compressor
US4639198A (en) * 1984-11-13 1987-01-27 Tecumseh Products Company Suction tube seal for a rotary compressor
US5183400A (en) * 1990-09-07 1993-02-02 Hitachi, Ltd. Pipe connection structure of a compressor
EP0588381A2 (en) * 1989-08-04 1994-03-23 Matsushita Refrigeration Company Hermetic compressor
US6158995A (en) * 1997-06-30 2000-12-12 Matsushita Electric Industrial Co., Ltd. Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing
US6162033A (en) * 1998-07-23 2000-12-19 Carrier Corporation Compressor economizer tube assembly
US20030080556A1 (en) * 2001-11-01 2003-05-01 Siemens Automotive Corporation Compliant sealing connection for fuel components
US20040052661A1 (en) * 2002-09-12 2004-03-18 Seung-Don Seo Joint structure for refrigerant discharge tubes used in hermetic compressors
EP1643080A2 (en) * 2004-09-29 2006-04-05 Sanyo Electric Co., Ltd. Compressor with hermetically sealed container
US20070117060A1 (en) * 2005-11-18 2007-05-24 Brass Craft Manufacturing Company Gas supply coupling for a water heater
CN100371602C (en) * 2003-05-20 2008-02-27 乐金电子(天津)电器有限公司 Air suction connecting apparatus for closed rotary compressor
US20100065203A1 (en) * 2008-09-18 2010-03-18 Tanbour Emadeddin Y Sealable water heater manifold doors
US20100101510A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with sealed door assembly
US20100101507A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with fuel line and door assembly
US20100101509A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with sealed door assemblies
US20100101508A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with sealed door assembly
US20100154724A1 (en) * 2008-12-23 2010-06-24 Mcanally Marcus E Water heater burner tube and door assembly
US20110020759A1 (en) * 2005-11-18 2011-01-27 Russell Clayton Gas supply interface for a water heater
CN102536812A (en) * 2010-12-29 2012-07-04 珠海格力节能环保制冷技术研究中心有限公司 Scroll compressor
US20120308425A1 (en) * 2011-06-03 2012-12-06 Fujitsu General Limited Rotary compressor
EP2778421A1 (en) * 2011-11-08 2014-09-17 Panasonic Corporation Compressor
CN105937490A (en) * 2016-06-17 2016-09-14 安徽阜阳风劲霸机电有限公司 Joint structure used for gas output
EP3258109A1 (en) * 2016-06-14 2017-12-20 Whirlpool S.A. Improvement introduced in a system for connecting refrigerant fluid discharge tubes to cylinder caps of hermetic compressors, and corresponding process of performing thereof
EP3343035A1 (en) * 2016-12-28 2018-07-04 LG Electronics Inc. Reciprocating compressor
US10415850B2 (en) * 2017-06-22 2019-09-17 Haier Us Appliance Solutions, Inc. Gas feed tube assembly for a water heater
US10760564B2 (en) 2016-12-28 2020-09-01 Lg Electronics Inc. Reciprocating compressor having a connector
US10808969B2 (en) 2015-08-11 2020-10-20 Carrier Corporation Screw compressor economizer plenum for pulsation reduction
US10830239B2 (en) 2015-08-11 2020-11-10 Carrier Corporation Refrigeration compressor fittings
US10941776B2 (en) 2015-10-02 2021-03-09 Carrier Corporation Screw compressor resonator arrays

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56113187U (en) * 1980-02-01 1981-09-01
JPS57129286A (en) * 1981-02-02 1982-08-11 Hitachi Ltd Rotary compressor
JPS6137484U (en) * 1984-08-09 1986-03-08 ダイキン工業株式会社 Compressor external piping connection structure
JP5935090B2 (en) * 2012-08-07 2016-06-15 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド Hermetic electric compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447259A (en) * 1945-02-12 1948-08-17 Worthington Pump & Mach Corp Condenser
US2764427A (en) * 1950-12-01 1956-09-25 Orrin E Andrus Dip tube connection
US3209991A (en) * 1963-12-16 1965-10-05 Westinghouse Electric Corp Sealed compressor unit assembly
US3618990A (en) * 1969-07-14 1971-11-09 Primore Sales Inc Tube coupling
US3767334A (en) * 1972-07-28 1973-10-23 Gen Electric Hermetically sealed compressor assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4719938U (en) * 1971-01-21 1972-11-06

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447259A (en) * 1945-02-12 1948-08-17 Worthington Pump & Mach Corp Condenser
US2764427A (en) * 1950-12-01 1956-09-25 Orrin E Andrus Dip tube connection
US3209991A (en) * 1963-12-16 1965-10-05 Westinghouse Electric Corp Sealed compressor unit assembly
US3618990A (en) * 1969-07-14 1971-11-09 Primore Sales Inc Tube coupling
US3767334A (en) * 1972-07-28 1973-10-23 Gen Electric Hermetically sealed compressor assembly

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240774A (en) * 1979-02-15 1980-12-23 General Electric Company Hermetically sealed compressor suction tube and method of assembly
EP0183332A1 (en) * 1984-11-13 1986-06-04 Tecumseh Products Company Suction tube seal for a rotary compressor
US4639198A (en) * 1984-11-13 1987-01-27 Tecumseh Products Company Suction tube seal for a rotary compressor
EP0588381A2 (en) * 1989-08-04 1994-03-23 Matsushita Refrigeration Company Hermetic compressor
EP0588381A3 (en) * 1989-08-04 1994-04-06 Matsushita Refrigeration Company Hermetic compressor
US5183400A (en) * 1990-09-07 1993-02-02 Hitachi, Ltd. Pipe connection structure of a compressor
ES2051160A2 (en) * 1990-09-07 1994-06-01 Hitachi Ltd Pipe connection structure of a compressor
US6158995A (en) * 1997-06-30 2000-12-12 Matsushita Electric Industrial Co., Ltd. Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing
US6257846B1 (en) 1997-06-30 2001-07-10 Matsushita Electric Industrial Co., Ltd. Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing
US6162033A (en) * 1998-07-23 2000-12-19 Carrier Corporation Compressor economizer tube assembly
US20030080556A1 (en) * 2001-11-01 2003-05-01 Siemens Automotive Corporation Compliant sealing connection for fuel components
US7118140B2 (en) * 2001-11-01 2006-10-10 Siemens Vdo Automotive Corporation Compliant sealing connection for fuel components
US20040052661A1 (en) * 2002-09-12 2004-03-18 Seung-Don Seo Joint structure for refrigerant discharge tubes used in hermetic compressors
CN100371602C (en) * 2003-05-20 2008-02-27 乐金电子(天津)电器有限公司 Air suction connecting apparatus for closed rotary compressor
EP1643080A2 (en) * 2004-09-29 2006-04-05 Sanyo Electric Co., Ltd. Compressor with hermetically sealed container
US20060073061A1 (en) * 2004-09-29 2006-04-06 Kazuya Sato Compressor
EP1643080A3 (en) * 2004-09-29 2007-12-19 Sanyo Electric Co., Ltd. Compressor with hermetically sealed container
US7416395B2 (en) * 2004-09-29 2008-08-26 Sanyo Electric Co., Ltd. Sleeve for coupling a refrigerant pipe to a compressor container
US20070117060A1 (en) * 2005-11-18 2007-05-24 Brass Craft Manufacturing Company Gas supply coupling for a water heater
US8091927B2 (en) * 2005-11-18 2012-01-10 Brass Craft Manufacturing Company Gas supply coupling for a water heater
AU2006207854B2 (en) * 2005-11-18 2011-08-11 Brass Craft Manufacturing Company Gas supply coupling for a water heater
US20110020759A1 (en) * 2005-11-18 2011-01-27 Russell Clayton Gas supply interface for a water heater
US20100065203A1 (en) * 2008-09-18 2010-03-18 Tanbour Emadeddin Y Sealable water heater manifold doors
US20100101509A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with sealed door assemblies
US20100101508A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with sealed door assembly
US20100101507A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with fuel line and door assembly
US20100101510A1 (en) * 2008-10-29 2010-04-29 Tanbour Emadeddin Y Water heaters with sealed door assembly
US8490580B2 (en) 2008-10-29 2013-07-23 American Water Heater Company Water heaters with sealed door assembly
US20100154724A1 (en) * 2008-12-23 2010-06-24 Mcanally Marcus E Water heater burner tube and door assembly
US8596226B2 (en) 2008-12-23 2013-12-03 Aos Holding Company Water heater burner tube and door assembly
CN102536812A (en) * 2010-12-29 2012-07-04 珠海格力节能环保制冷技术研究中心有限公司 Scroll compressor
US20120308425A1 (en) * 2011-06-03 2012-12-06 Fujitsu General Limited Rotary compressor
EP2778421A1 (en) * 2011-11-08 2014-09-17 Panasonic Corporation Compressor
EP2778421A4 (en) * 2011-11-08 2014-12-03 Panasonic Corp Compressor
US10808969B2 (en) 2015-08-11 2020-10-20 Carrier Corporation Screw compressor economizer plenum for pulsation reduction
US10830239B2 (en) 2015-08-11 2020-11-10 Carrier Corporation Refrigeration compressor fittings
US10941776B2 (en) 2015-10-02 2021-03-09 Carrier Corporation Screw compressor resonator arrays
EP3258109A1 (en) * 2016-06-14 2017-12-20 Whirlpool S.A. Improvement introduced in a system for connecting refrigerant fluid discharge tubes to cylinder caps of hermetic compressors, and corresponding process of performing thereof
CN107503911A (en) * 2016-06-14 2017-12-22 惠而浦股份有限公司 Cryogenic fluid delivery pipe is connected to the improvement system of the cylinder cover of hermetic compressor and implements the correlation method of the system
CN107503911B (en) * 2016-06-14 2021-11-12 恩布拉科压缩机工业和制冷解决方案有限公司 Improved system for connecting a refrigerant fluid discharge pipe to the cylinder head of a hermetic compressor and corresponding method for implementing such a system
CN105937490A (en) * 2016-06-17 2016-09-14 安徽阜阳风劲霸机电有限公司 Joint structure used for gas output
US10760564B2 (en) 2016-12-28 2020-09-01 Lg Electronics Inc. Reciprocating compressor having a connector
EP3343035A1 (en) * 2016-12-28 2018-07-04 LG Electronics Inc. Reciprocating compressor
US10415850B2 (en) * 2017-06-22 2019-09-17 Haier Us Appliance Solutions, Inc. Gas feed tube assembly for a water heater

Also Published As

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FR2264202B1 (en) 1980-04-18
IT1033388B (en) 1979-07-10
DE2508002A1 (en) 1975-09-18
FR2264202A1 (en) 1975-10-10
JPS50132511A (en) 1975-10-20

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