WO2012174626A1 - Connector for hermetic compressors - Google Patents

Connector for hermetic compressors Download PDF

Info

Publication number
WO2012174626A1
WO2012174626A1 PCT/BR2012/000208 BR2012000208W WO2012174626A1 WO 2012174626 A1 WO2012174626 A1 WO 2012174626A1 BR 2012000208 W BR2012000208 W BR 2012000208W WO 2012174626 A1 WO2012174626 A1 WO 2012174626A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
connecting tube
connector
compressor
present
Prior art date
Application number
PCT/BR2012/000208
Other languages
French (fr)
Other versions
WO2012174626A8 (en
Inventor
Sergio Luiz Maganhoto
Moises Alves de OLIVEIRA
Original Assignee
Whirpool S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Whirpool S.A. filed Critical Whirpool S.A.
Priority to US14/127,419 priority Critical patent/US20140286753A1/en
Priority to CN201280030817.2A priority patent/CN103842652A/en
Priority to JP2014516136A priority patent/JP2014517209A/en
Priority to KR1020147001079A priority patent/KR20140040228A/en
Priority to EP12737464.3A priority patent/EP2724027A1/en
Publication of WO2012174626A1 publication Critical patent/WO2012174626A1/en
Publication of WO2012174626A8 publication Critical patent/WO2012174626A8/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • 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
    • 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

Definitions

  • the present invention relates to a hermetic connector, preferably made in the form of a tube, which was mainly developed for reducing manufacturing costs through the use of several materials in its constitution.
  • Hermetic compressors widely used in the refrigeration field, especially in coolants and freezers, are devices that need to ensure that the loss of working gas is minimal, in order to confer more life span to the equipment as well as reduce maintenance periods and increase the thermal efficiency thereof.
  • a critical point for maintaining the tightness of the compressor is the connections that join it to the evaporation and condensation system, which are commonly carried out by means of connecting tubes, which are fastened by welding, soldering or by mechanical fastening. The same happens to the connections of the process valve tube which is usable to inject oil and coolant, during assembly of the compressor to the system or in case of any need for system maintenance.
  • the connecting tubes of the state of the art are usually manufactured from a single material in order to facilitate the joint with the system of coolants and freezers, such material being usually steel or copper - the latter being the most frequently employed because of the ease of brazing with the system tube, and for sealing the process valve tube.
  • Copper is a noble material and has higher costs comparing to other mechanical equivalent materials (steel, for example), so that the use of cooper in applications not requiring specific characteristics (physical or chemical) causes the cost of the final product to get higher than necessary.
  • Another negative point concerning the exclusive use of copper is the fact that it is a metal more rare in nature when compared with other materials such as, for example, iron. Therefore, whenever possible, its use should be moderate.
  • a first example can be found in document PI0613759, which mentions the use of a tube for the connection between the compression chamber and the evaporation and condensation system of the equipment, entirely manufactured in a flexible material in order to reduce the chamber heating between the piston jacket and the compressor housing. Said tube is made solid in a high thermal resistivity polymer. At this point, it is noted that a material other than copper was used for the connection between the compressor housing and the tube of the condensing and refrigeration system; however the tube employed in this document does not consider the cost of the product, besides having its manufacturing completely limited to a single constituting material.
  • a second example can be found in document CA1153997, which discloses a connecting tube comprised of a copper tube (which can be alternatively made of steel) with one end mounted on a flange associated with the compressor housing and the other end directed to the joint with the tube of the refrigeration and condensation system.
  • a tubular body capable of maintaining a third tubular body made of ductile material, by pressing the inner surface of the tube. This interference fit is responsible for ensuring the sealing of the system. It is noticed, therefore, that this document discloses an extremely complex construct that, in addition, also predicts that the connecting tube is entirely made of a single constituting material.
  • the compressor housing (which internally has a conical filter) for coupling the compressor housing, the opposite end thereof being, however, it is coupled to a cooper adapter which effectively accomplishes the connection to the pipe system - that is, two separate elements are coupled (and subsequently fastened) to each other by means of fitting, each being made in a single material.
  • the cooper adapter also serves to attach the conical filter to the compressor valve, thus disclosing a process for complex manufacturing and assembling and, therefore, costly.
  • Another of the objects of the present invention is to describe a single piece part made of two different materials which, however, keep the characteristics suitable for assembling, functioning and tightness of the hermetic compressors used in refrigeration systems in general.
  • a connector for hermetic compressors of the type comprising a connection tube between a compressor housing and any tube- such as, for example, evaporation, condensation systems or process valve tube - and such connector comprises a tube in a single piece having at least two portions composed of different materials, the portions being joined by means of a suitable joining process.
  • said single piece tube comprises a first portion comprising a first material and a second portion comprising a second material, the first portion of the connecting tube being capable of joining the connecting tube and the compressor housing and the second portion of the connecting tube being able to join the connector tube to the system tube.
  • the first portion of the connecting tube is preferably made of a material belonging to the group comprised of steel, aluminum and metals of related characteristics, and the second portion of the connecting tube is preferably made of copper.
  • the first portion of the connecting tube can be coated with copper or other suitable coating.
  • the first portion of the connecting tube is associated with the second portion of the connecting tube by means of a fastening process pertaining to the group comprised of brazing, welding or mechanical fastening.
  • the present invention comprises means for allowing the connecting tube to be constituted by at least two portions consisting of different materials joined together by means of a suitable joining process, thereby providing a more economical production process besides being of easy installation and providing the same tightness characteristics that are necessary for the proper system functioning.
  • Figure 1 - shows a schematic view in longitudinal section of an embodiment of a connecting pipe for hermetic compressors of the current state of the art.
  • Figure 2 - shows a schematic view in longitudinal section of the connector for hermetic compressors made in accordance with a preferred embodiment of the present invention.
  • FIG. 3 - shows a schematic view of a compressor provided with connecting tubes.
  • Figure 1 illustrates a connecting tube 2 conventionally used in the current state of the art which is responsible for joining a housing 1 of the compressor to any tube 3, which may be a process valve or a tube of the evaporation and/or condensation system of the refrigerator or freezer in which the hermetic compressor is installed.
  • This is a single part that is typically manufactured from a single material - generally cooper - and has one end associated with the compressor housing 1 and the other end associated with the system tube
  • joining the connecting tube 2 to the system tube 3 is carried out by brazing 4 as it can also be noticed in Figure 1.
  • FIG 2 in which the connector 2 consists of two tubular portions 5 and 6, being a first portion 5 of the connecting tube 2 made of one material, and a second portion 6 of the connecting tube 2 being made of a material different from the previous portion 5.
  • the present invention is used as aluminum or steel material of the first portion 5 of the connecting tube 2, since: they are relatively abundant and cheap materials, have good mechanical properties, and the manufacturing processes are well established.
  • the manufacturing material of the second portion 6 of the connecting tube 2 is preferably copper, in order to maintain the characteristics necessary for the correct operation and assembling of the system as a whole.
  • the first portion 5 of the connecting tube 2 may also be manufactured in aluminum, steel or other metallic material coated with copper or other coating suitable for the application.
  • connecting tube 2 The portions 5 and 6 of connecting tube 2 are joined together in a region 7, through an appropriate fixed joining process, that is, any fixed joining method may be employed, provided it meets the requirements of mechanical strength, tightness and any other feature defined in the project.
  • any fixed joining method may be employed, provided it meets the requirements of mechanical strength, tightness and any other feature defined in the project.
  • it is stressed brazing, welding and mechanical fastening.
  • the manufacturing cost is shown more advantageous over the cost using a connecting tube 2 fully made of copper.
  • the coupling and/or fastening of the connecting tube 2 to the housing 1 - as well as the fastening method used to join the connecting tube 2 to the system tube 3 - can be any one that is shown appropriate for meeting the requirements of the application, since it does not interfere with the embodiment of the present invention, therefore not being discussed in the present description.
  • the joining between the connecting tube 2 and the system tube 3 may be carried out by means of welding, brazing or mechanical fastening to an attachment point 4, depending on the materials from which the tubes are composed os.

Abstract

The present invention relates to a connecting tube (2) for hermetic compressors, which is responsible for connecting the housing (1) of a hermetic compressor to the tube (3) - which may be the process valve tube or evaporation, condensation system - which comprises at least two portions composed of materials that are different from each other, which are associated by means of a suitable joining process - preferably welding, soldering or mechanical fastening. In the preferred embodiment of the invention, the connecting tube (2) comprises a first portion (5) comprising a first material and a second portion (6) composed of a second material, wherein the second portion (6) of the connecting tube (2) can join the first portion of the connecting tube (5) and the system tube (3).

Description

"CONNECTOR FOR HERMETIC COMPRESSORS".
Field of the Invention
The present invention relates to a hermetic connector, preferably made in the form of a tube, which was mainly developed for reducing manufacturing costs through the use of several materials in its constitution.
Background of the Invention
Hermetic compressors, widely used in the refrigeration field, especially in coolants and freezers, are devices that need to ensure that the loss of working gas is minimal, in order to confer more life span to the equipment as well as reduce maintenance periods and increase the thermal efficiency thereof.
A critical point for maintaining the tightness of the compressor is the connections that join it to the evaporation and condensation system, which are commonly carried out by means of connecting tubes, which are fastened by welding, soldering or by mechanical fastening. The same happens to the connections of the process valve tube which is usable to inject oil and coolant, during assembly of the compressor to the system or in case of any need for system maintenance.
The connecting tubes of the state of the art are usually manufactured from a single material in order to facilitate the joint with the system of coolants and freezers, such material being usually steel or copper - the latter being the most frequently employed because of the ease of brazing with the system tube, and for sealing the process valve tube.
Copper, however, is a noble material and has higher costs comparing to other mechanical equivalent materials (steel, for example), so that the use of cooper in applications not requiring specific characteristics (physical or chemical) causes the cost of the final product to get higher than necessary. Another negative point concerning the exclusive use of copper is the fact that it is a metal more rare in nature when compared with other materials such as, for example, iron. Therefore, whenever possible, its use should be moderate.
Some documents of the state of the art show compressors in which the connecting tubes are equipped with components made of material other than copper which, however, do not cover the issue of cost added to the material - not even do it to reduce the use of this metal. Furthermore, these components are integrally formed by a single material, besides presenting embodiments and purposes completely distinct from those targeted by the object of the present invention.
A first example can be found in document PI0613759, which mentions the use of a tube for the connection between the compression chamber and the evaporation and condensation system of the equipment, entirely manufactured in a flexible material in order to reduce the chamber heating between the piston jacket and the compressor housing. Said tube is made solid in a high thermal resistivity polymer. At this point, it is noted that a material other than copper was used for the connection between the compressor housing and the tube of the condensing and refrigeration system; however the tube employed in this document does not consider the cost of the product, besides having its manufacturing completely limited to a single constituting material.
A second example can be found in document CA1153997, which discloses a connecting tube comprised of a copper tube (which can be alternatively made of steel) with one end mounted on a flange associated with the compressor housing and the other end directed to the joint with the tube of the refrigeration and condensation system. Within the copper (or steel) tube is housed a tubular body capable of maintaining a third tubular body made of ductile material, by pressing the inner surface of the tube. This interference fit is responsible for ensuring the sealing of the system. It is noticed, therefore, that this document discloses an extremely complex construct that, in addition, also predicts that the connecting tube is entirely made of a single constituting material.
In turn, document EP0386320 discloses a connector of an unspecified material
(which internally has a conical filter) for coupling the compressor housing, the opposite end thereof being, however, it is coupled to a cooper adapter which effectively accomplishes the connection to the pipe system - that is, two separate elements are coupled (and subsequently fastened) to each other by means of fitting, each being made in a single material. In addition, the cooper adapter also serves to attach the conical filter to the compressor valve, thus disclosing a process for complex manufacturing and assembling and, therefore, costly.
Note, therefore, that the current state of the art lacks a connecting tube made of different materials joined together into a single part, thereby allowing more economical manufacturing and ease of installation that does not require the use of several individual components for their assembling to the compressor or to eh system tubes.
Objects of the Invention
Thus, it is one of the objects of the present invention to provide a connector for lower cost and equally efficient compressors, ensuring that the joint between the involved parts is properly hermetic.
It is also an object of the present invention to disclose a connector for hermetic compressors produced with a minimum amount of copper - which is a metal that is not very abundant in nature.
Another of the objects of the present invention is to describe a single piece part made of two different materials which, however, keep the characteristics suitable for assembling, functioning and tightness of the hermetic compressors used in refrigeration systems in general. Summary of the Invention
The objects of the present invention are achieved by a connector for hermetic compressors, of the type comprising a connection tube between a compressor housing and any tube- such as, for example, evaporation, condensation systems or process valve tube - and such connector comprises a tube in a single piece having at least two portions composed of different materials, the portions being joined by means of a suitable joining process.
According to a preferred embodiment of the present invention, said single piece tube comprises a first portion comprising a first material and a second portion comprising a second material, the first portion of the connecting tube being capable of joining the connecting tube and the compressor housing and the second portion of the connecting tube being able to join the connector tube to the system tube.
Still according to the preferred embodiment of the present invention, the first portion of the connecting tube is preferably made of a material belonging to the group comprised of steel, aluminum and metals of related characteristics, and the second portion of the connecting tube is preferably made of copper.
Alternatively, the first portion of the connecting tube can be coated with copper or other suitable coating.
In the preferred embodiment of the present invention, the first portion of the connecting tube is associated with the second portion of the connecting tube by means of a fastening process pertaining to the group comprised of brazing, welding or mechanical fastening.
Briefly, the present invention comprises means for allowing the connecting tube to be constituted by at least two portions consisting of different materials joined together by means of a suitable joining process, thereby providing a more economical production process besides being of easy installation and providing the same tightness characteristics that are necessary for the proper system functioning.
Brief Description of the Drawings
Figure 1 - shows a schematic view in longitudinal section of an embodiment of a connecting pipe for hermetic compressors of the current state of the art.
Figure 2 - shows a schematic view in longitudinal section of the connector for hermetic compressors made in accordance with a preferred embodiment of the present invention.
Figure 3 - shows a schematic view of a compressor provided with connecting tubes. Detailed Description of the Invention
The present invention will be hereinafter further described based on the attached figures. Figure 1 illustrates a connecting tube 2 conventionally used in the current state of the art which is responsible for joining a housing 1 of the compressor to any tube 3, which may be a process valve or a tube of the evaporation and/or condensation system of the refrigerator or freezer in which the hermetic compressor is installed. This is a single part that is typically manufactured from a single material - generally cooper - and has one end associated with the compressor housing 1 and the other end associated with the system tube
3.
Generally, joining the connecting tube 2 to the system tube 3 is carried out by brazing 4 as it can also be noticed in Figure 1.
The preferred embodiment proposed by the present invention is seen in details from
Figure 2, in which the connector 2 consists of two tubular portions 5 and 6, being a first portion 5 of the connecting tube 2 made of one material, and a second portion 6 of the connecting tube 2 being made of a material different from the previous portion 5.
It is worth clarifying that the materials used may be similar or completely different from each other, provided that the specific application and interconnection with the adjacent components are respected.
In an alternative embodiment of the present invention, it is possible to use three or more portions composing the connecting tube 2, each of these portions comprising a different material or even a combination of materials similar, or not, to each other
In the preferred embodiment of the present invention, it is used as aluminum or steel material of the first portion 5 of the connecting tube 2, since: they are relatively abundant and cheap materials, have good mechanical properties, and the manufacturing processes are well established.
In turn, the manufacturing material of the second portion 6 of the connecting tube 2 is preferably copper, in order to maintain the characteristics necessary for the correct operation and assembling of the system as a whole.
Alternatively, the first portion 5 of the connecting tube 2 may also be manufactured in aluminum, steel or other metallic material coated with copper or other coating suitable for the application.
The portions 5 and 6 of connecting tube 2 are joined together in a region 7, through an appropriate fixed joining process, that is, any fixed joining method may be employed, provided it meets the requirements of mechanical strength, tightness and any other feature defined in the project. Among the possible processes of fixed joining, it is stressed brazing, welding and mechanical fastening.
Thus, it is obtained as a final product a single connecting tube 2 produced with a significantly lower cost than the conventional ones and whose installation process of the other system components - namely: the compressor housing 1 and the system tube 3 - is simple and practical.
By using the first portion 5 of the connecting tube 2 made of steel or aluminum, the manufacturing cost is shown more advantageous over the cost using a connecting tube 2 fully made of copper.
Furthermore, it is clarified that the coupling and/or fastening of the connecting tube 2 to the housing 1 - as well as the fastening method used to join the connecting tube 2 to the system tube 3 - can be any one that is shown appropriate for meeting the requirements of the application, since it does not interfere with the embodiment of the present invention, therefore not being discussed in the present description.
As an example, the joining between the connecting tube 2 and the system tube 3 may be carried out by means of welding, brazing or mechanical fastening to an attachment point 4, depending on the materials from which the tubes are composed os.
It should be noted that although having been shown preferred constructive forms of the present invention, it is understood that any omissions, substitutions and constructive alterations may be accomplished by a person skilled in the art, without departing from the spirit and scope of the required protection. It is also expressly stated that all combinations of elements that perform the same function in substantially the same way in order to achieve the same results are within the scope of the invention. Substitutions of elements of a described embodiment with others are also fully intended and encompassed.
It should be also understood that the description given above based on figures above relates just to one of possible embodiments for the system of the present invention, the actual scope of the object of the invention being defined in the appended claims.

Claims

1. Connector for hermetic compressors, of the type comprising a tube (2) for interconnection between a housing (1 ) of a compressor and an any system tube (3) such as, for example, of the evaporation, condensation system or process valve tube process CHARACTERIZED in that such connector comprises:
a tube (2) as a single part containing at least two portion (5 and 6) composed of different materials, the portions (5, 6) being associated by means of a suitable joining process; and
means for allowing the connecting tube (2) to comprise at least two portions (5 and 6) consisting of different materials bound together by means of a suitable joining process.
2. Connector according to claim 1 , CHARACTERIZED in that said tube (2) in single part comprises:
a first portion (5) composed of a first material and
one second portion (6) composed of a second material,
the first portion (5) of the connecting tube (2) being able to join the connecting tube (2) and the housing (1 ) of the compressor, and the second portion (6) of the connecting tube (2) being able to join the connecting tube ( 2) to the system tube (3).
3. Connector according to claims 1 and 2, CHARACTERIZED in that the first portion (5) of the connecting tube (2) is made of a material pertaining to the group comprised of steel, aluminum and metals of appropriate characteristics.
4. Connector according to claims 1 and 2, CHARACTERIZED in that the second portion (6) of the connecting tube (2) is made of copper.
5. Connector according to any one of claims 1 to 4, CHARACTERIZED in that the first portion (5) of the connecting tube (2) is associated with the second portion (6) of the connecting tube (2) by means of a fastening process belonging the group comprised of brazing, welding or mechanical fastening.
PCT/BR2012/000208 2011-06-12 2012-06-12 Connector for hermetic compressors WO2012174626A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US14/127,419 US20140286753A1 (en) 2011-06-12 2012-06-12 Connector for hermetic compressors
CN201280030817.2A CN103842652A (en) 2011-06-21 2012-06-12 Connector for hermetic compressors
JP2014516136A JP2014517209A (en) 2011-06-21 2012-06-12 Sealed compressor connector
KR1020147001079A KR20140040228A (en) 2011-06-21 2012-06-12 Connector for hermetic compressors
EP12737464.3A EP2724027A1 (en) 2011-06-21 2012-06-12 Connector for hermetic compressors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI1103019-4 2011-06-12
BRPI1103019-4A BRPI1103019A2 (en) 2011-06-21 2011-06-21 connector for airtight compressors

Publications (2)

Publication Number Publication Date
WO2012174626A1 true WO2012174626A1 (en) 2012-12-27
WO2012174626A8 WO2012174626A8 (en) 2014-02-20

Family

ID=46545574

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2012/000208 WO2012174626A1 (en) 2011-06-12 2012-06-12 Connector for hermetic compressors

Country Status (7)

Country Link
US (1) US20140286753A1 (en)
EP (1) EP2724027A1 (en)
JP (1) JP2014517209A (en)
KR (1) KR20140040228A (en)
CN (1) CN103842652A (en)
BR (1) BRPI1103019A2 (en)
WO (1) WO2012174626A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014071488A1 (en) * 2012-11-12 2014-05-15 Whirpool S.A. Equipment for shaping connector tubes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102015026864A2 (en) * 2015-10-22 2017-05-02 Whirlpool Sa pipe and compressor brazing process
US11118795B2 (en) * 2019-02-08 2021-09-14 Johnson Controls Technology Company Composite interconnection conduits for HVAC systems
CN112761930A (en) * 2019-11-04 2021-05-07 上海海立电器有限公司 Connecting joint structure and compressor assembling method
CN216812050U (en) * 2021-10-25 2022-06-24 思科普有限责任公司 Encapsulated refrigerant compressor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1153997A (en) 1979-02-15 1983-09-20 William T. Ladusaw Hermetically sealed compressor suction tube and method of assembly
EP0386320A1 (en) 1989-03-08 1990-09-12 Tecumseh Products Company Suction line connector for hermetic compressor
CN1153997A (en) * 1995-12-29 1997-07-09 Lg半导体株式会社 Improved integrated chip package with reduced dimensions
WO1997043546A1 (en) * 1996-05-10 1997-11-20 Empresa Brasileira De Compressores S/A. - Embraco A suction arrangement in a reciprocating 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
WO2006090979A1 (en) * 2005-02-23 2006-08-31 Lg Electronics Inc. Capacity varying type rotary compressor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903763A (en) * 1953-12-14 1959-09-15 Gen Motors Corp Fused aluminum to copper pipe coupling
US2823933A (en) * 1954-09-21 1958-02-18 Charles E Hickman Refrigerating system and method of making the same
US3040427A (en) * 1958-08-29 1962-06-26 Howell Stanley Method of uniting copper and aluminum tubes
JPS50103207U (en) * 1974-01-28 1975-08-26
US3870440A (en) * 1974-03-11 1975-03-11 Gen Electric Hermetically sealed compressor suction tube assembly
JPS56132392U (en) * 1980-03-10 1981-10-07
JPH10196572A (en) * 1997-01-07 1998-07-31 Matsushita Electric Ind Co Ltd Hermetic compressor
KR100620040B1 (en) * 2005-02-23 2006-09-11 엘지전자 주식회사 Modulation apparatus for rotary compressor and airconditioner with this
WO2006109239A1 (en) * 2005-04-12 2006-10-19 Arcelik Anonim Sirketi A compressor
CN101493091A (en) * 2008-01-24 2009-07-29 广东美芝制冷设备有限公司 Exhaust pipe for air-conditioned compressor, method for producing the same and assembly method
JP2010038087A (en) * 2008-08-07 2010-02-18 Panasonic Corp Hermetic compressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1153997A (en) 1979-02-15 1983-09-20 William T. Ladusaw Hermetically sealed compressor suction tube and method of assembly
EP0386320A1 (en) 1989-03-08 1990-09-12 Tecumseh Products Company Suction line connector for hermetic compressor
CN1153997A (en) * 1995-12-29 1997-07-09 Lg半导体株式会社 Improved integrated chip package with reduced dimensions
WO1997043546A1 (en) * 1996-05-10 1997-11-20 Empresa Brasileira De Compressores S/A. - Embraco A suction arrangement in a reciprocating 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
WO2006090979A1 (en) * 2005-02-23 2006-08-31 Lg Electronics Inc. Capacity varying type rotary compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014071488A1 (en) * 2012-11-12 2014-05-15 Whirpool S.A. Equipment for shaping connector tubes

Also Published As

Publication number Publication date
WO2012174626A8 (en) 2014-02-20
KR20140040228A (en) 2014-04-02
BRPI1103019A2 (en) 2013-07-16
CN103842652A (en) 2014-06-04
JP2014517209A (en) 2014-07-17
US20140286753A1 (en) 2014-09-25
EP2724027A1 (en) 2014-04-30

Similar Documents

Publication Publication Date Title
EP2724027A1 (en) Connector for hermetic compressors
JP6266093B2 (en) Heat exchanger and air conditioner
US9574534B2 (en) Reinforced end cap assembly for pressure vessel
EP2059706A2 (en) Clamp for tubular connections in small refrigeration systems
US20090110586A1 (en) Refrigerant compressor
US20150219086A1 (en) Gas discharge arrangement for a refrigeration compressor
CN107387374B (en) Compressor and method for mounting suction pipe group of compressor
US9157439B2 (en) Universal oil fitting
JP2006342676A (en) Hermetic compressor
CN106523359B (en) Screw compressor and its fixed scroll and upper cap assembly
US20120261022A1 (en) Thermal isolation, suitable for isolating the gas discharge tube of a refrigerating compressor, and a process of assembling the isolation in the gas discharge tube
EP2645042A1 (en) Heat exchanger, household appliance comprising such heat exchanger and method for manufacturing such heat exchanger
US20210333057A1 (en) Pipe connection arrangement for a heat exchanger
US20050072562A1 (en) Heat exchanger tube assembly
CN208348026U (en) A kind of exhaust pipe assembly for compressor
CN108916056B (en) Compressor with a compressor housing having a plurality of compressor blades
CN106884777A (en) Compressor and the refrigeration plant with it
KR20090128123A (en) Suction pipe connection assembly and manufacturing method for suction pipe connection assembly
US20230082318A1 (en) Pressure vessel and refrigeration apparatus
KR101608493B1 (en) Tube connection structure of the accumulator
KR20030043574A (en) Refrigerant pipe connecting structure of a refrigerator and connecting method thereof
EP3901505A1 (en) Pipe connection arrangement for a heat exchanger
EP3824185B1 (en) A compressor with improved operational efficiency
CN208170664U (en) A kind of idle call integrated exhaust tube component
KR20230157093A (en) Refrigerant Pipe Connecting Structure for Air Conditioner

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12737464

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
ENP Entry into the national phase

Ref document number: 2014516136

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20147001079

Country of ref document: KR

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2012737464

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012737464

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14127419

Country of ref document: US