US20090238701A1 - Compressor having a piston received on a gas bearing - Google Patents

Compressor having a piston received on a gas bearing Download PDF

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Publication number
US20090238701A1
US20090238701A1 US12/310,760 US31076007A US2009238701A1 US 20090238701 A1 US20090238701 A1 US 20090238701A1 US 31076007 A US31076007 A US 31076007A US 2009238701 A1 US2009238701 A1 US 2009238701A1
Authority
US
United States
Prior art keywords
working chamber
piston
gas
outlet connection
openings
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US12/310,760
Other languages
English (en)
Inventor
Marco Giacchi
Thorsten Kusnik
Jan-Grigor Schubert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERATE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERATE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GIACCHI, MARCO, KUSNIK, THORSTEN, SCHUBERT, JAN-GRIGOR
Publication of US20090238701A1 publication Critical patent/US20090238701A1/en
Abandoned legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/126Cylinder liners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/02Lubrication
    • F04B39/0284Constructional details, e.g. reservoirs in the casing
    • F04B39/0292Lubrication of pistons or cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/16Filtration; Moisture separation
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/794With means for separating solid material from the fluid

Definitions

  • the present invention relates to a compressor having a gas-bearing piston, in particular for use as a refrigerant compressor in a domestic refrigerator.
  • Compressors with rotary-driven lifting pistons and oil lubrication are conventionally used in domestic appliances. Owing to the rotary drive, during the course of its lifting movement in a working chamber the piston in such a compressor is also exposed to forces transverse to the lifting direction which push the piston against the wall of the working chamber. To protect the compressor against frictional wear there must be a continuous film of oil between piston and chamber wall. The viscosity of the oil must be high enough to prevent the oil from being displaced between wall and piston under the influence of a transverse force. The greater the transverse forces are, the more viscous the oil must be and the friction losses are all the greater owing to the viscosity of the oil.
  • a linear motor of this kind exerts smaller transverse forces on the piston so lower viscosity lubricants can be used, through to bearing of the piston by the gas that is itself to be compressed.
  • openings are formed in a wall of the working chamber covered by the piston and communicate with an outlet connection of the compressor, so a small portion of the compressed medium can flow from the outlet connection, via the openings and back into the working chamber and in the process generates a gas cushion between piston and wall which ideally allows movement of the piston without any contact with the wall at all and therefore without any frictional wear either.
  • a compressor comprising an inlet connection and an outlet connection for a gas to be compressed, and a working chamber in which a piston for compressing the gas can be displaced, openings communicating with the outlet connection being configured in a wall of the working chamber covered by the piston, said compressor being characterized by a particle filter arranged in a flow path of the gas through the compressor between the inlet connection and the outlet connection.
  • the inventive particle filter remedies this by preventing these foreign bodies from reaching the wall openings.
  • a particle filter of this kind may be provided at various sites in the compressor. According to a first configuration the particle filter is arranged between the inlet connection and the working chamber.
  • a particle filter of this kind has the advantage that foreign bodies can be prevented from reaching the working chamber from the outset. This is particularly desirable in the case of coarse foreign bodies which can cause damage solely by virtue of their presence in the working chamber.
  • the particle filter is arranged in a pipe, connecting an egress of the working chamber to the outlet connection, between the egress and a branch pipe leading to the openings.
  • This arrangement of the filter does not lead to an undesirable increase in pressure at the inlet connection of the compressor.
  • a greater drop in pressure can be built up at such a filter arranged on the pressure side of the compressor than at the inlet-side filter described above, so sufficient throughput can also be achieved in a compact filter although such a high drop in pressure does in turn affect the efficiency of the compressor.
  • a branch pipe leading to the openings branches off from a pressure pipe connecting an egress of the working chamber to the outlet connection, and the particle filter is arranged in the branch pipe.
  • the filter arranged in the branch pipe does not prevent foreign bodies from passing through the compressor from the start, it does collect them during the course of compressor operation as soon as they pass into the branch pipe.
  • the branch pipe comprises a distribution chamber and a hole connecting the distribution chamber to the pressure pipe, the wall covered by the piston forming a partition between the working chamber and the distribution chamber.
  • the particle filter can be small and compactly arranged in the hole, or it can be arranged in the distribution chamber so as to cover the partition.
  • the distribution chamber is preferably a hollow cylinder that extends around the cylindrical working chamber.
  • FIG. 1 shows a schematic section through a compressor according to the invention with suction-side particle filter
  • FIG. 2 shows a section analogous to FIG. 1 through an inventive compressor with pressure-side particle filter
  • FIG. 3 shows a section analogous to FIG. 1 through an inventive compressor with particle filter arranged in a branch pipe, and
  • FIG. 4 shows a section through a modification of the compressor with particle filter arranged in a branch pipe.
  • FIG. 1 shows a schematic section through a compressor according to a first embodiment of the invention.
  • the compressor is part of a refrigerating machine of a domestic refrigerator which is not shown as its remaining components are known.
  • a piston 2 can be reciprocated by a driving unit, likewise known per se and not shown, in a cylindrical working chamber 1 of the compressor.
  • the driving unit can for example be a linear motor as described for instance in DE 10 2004 010 849 AG, but in general any desired driving unit which is capable of generating a driving force, and whose transverse components are small enough that frictional contact between the walls of the working chamber 1 and the piston 2 can be reliably avoided, may be considered.
  • a suction valve 3 and a pressure valve 4 which connect the working chamber 1 to a suction pipe 5 and a pressure pipe 6 respectively and via these to an inlet connection 12 and an outlet connection 13 respectively are located at one end face of the working chamber.
  • a particle filter 7 is provided in the suction pipe 5 .
  • a hole 8 leads from the pressure pipe 6 to a distribution chamber 9 with a hollow cylindrical shape and which surrounds the working chamber 1 , so the wall 10 of the working chamber 1 covered by the piston 2 as it moves is a partition between the working chamber 1 and the distribution chamber 9 . A large number of narrow openings 11 is distributed in this wall 10 .
  • the piston 2 when moved to the right, sucks in refrigerant from the inlet connection 12 via the suction pipe 5 , the particle filter 7 and the suction valve 3 into the working chamber 1 .
  • the contents of the working chamber 1 are firstly compressed at the pressure prevailing in the pressure pipe 6 before the pressure valve 4 opens and the compressed gas runs off into the pressure pipe 6 .
  • a small portion of the gas flowing in the pressure pipe 6 passes through the hole 8 and into the distribution chamber 9 and from there via the openings 11 in the wall 10 back into the working chamber 1 where it forms a gas cushion between the piston 2 and the wall 10 .
  • the embodiment shown in FIG. 2 differs from that in FIG. 1 in that the particle filter 7 is arranged in the pressure pipe 6 , between the pressure valve 4 and the hole 8 , and not in the suction pipe 5 . As in the embodiment of FIG. 1 all of the refrigerant passing through the compressor passes through the particle filter 7 . Owing to the arrangement of the particle filter 7 in the pressure pipe 6 a greater drop in pressure can be built up at the particle filter 7 than in the case of the embodiment of FIG. 1 , so sufficient throughput can be achieved even with a compact filter.
  • FIG. 3 differs from the two described above in the placement of the particle filter 7 in the distribution chamber 9 .
  • the particle filter 7 rests on the wall 10 , so it is pressed against the wall 10 as a result of the pressure difference between its outer and inner sides.
  • the increased demand for power owing to filtering is only a fraction of the increased demand of the first two embodiments.
  • the provision of the particle filter 7 in the distribution chamber 9 has the advantage that refrigerant can flow through the particle filter 7 over a very large cross-sectional area, so even when using a very porous filter a throughput sufficient to maintain the gas cushion can be attained.
  • the particle filter 7 preferably has a layered structure here with a fine-pored outer layer 7 a and a coarse-pored, easily permeable inner layer whose function is substantially to maintain a spacing between the fine-pored layer 7 a and the wall 10 in which the gas can uniformly distribute itself among the openings 11 .
  • FIG. 4 shows the currently preferred embodiment of the invention. This embodiment differs from those described above in that the hole 8 , which connects the distribution chamber 9 to the pressure pipe 6 , is long enough and wide enough to receive the particle filter 7 in the form of a filter cartridge 14 .
  • the filter cartridge is introduced into the hole 8 from its end that faces the pressure pipe 6 .
  • a pressure-side flange 15 of the filter cartridge rests on a shoulder 16 formed at the entrance to the hole 8 , so the filter cartridge 14 is pressed against the shoulder 16 by the drop in pressure which it generates on the refrigerant flowing through.
  • the suction-side particle filter 7 from the embodiment of FIG. 1 can also be combined with the particle filter according to FIG. 3 or 4 that is arranged on the route of the refrigerant from the pressure pipe 6 to the openings 11 .
  • the suction-side particle filter can be a coarse-pored filter with low flow resistance which is used solely to keep coarse contaminants away from the working chamber 1 while finer contaminants are caught by the pressure-side particle filter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US12/310,760 2006-09-07 2007-08-07 Compressor having a piston received on a gas bearing Abandoned US20090238701A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006042021.7 2006-09-07
DE200610042021 DE102006042021A1 (de) 2006-09-07 2006-09-07 Verdichter mit gasdruckgelagertem Kolben
PCT/EP2007/058185 WO2008028737A1 (de) 2006-09-07 2007-08-07 Verdichter mit gasdruckgelagertem kolben

Publications (1)

Publication Number Publication Date
US20090238701A1 true US20090238701A1 (en) 2009-09-24

Family

ID=38669639

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/310,760 Abandoned US20090238701A1 (en) 2006-09-07 2007-08-07 Compressor having a piston received on a gas bearing

Country Status (6)

Country Link
US (1) US20090238701A1 (de)
EP (1) EP2064446B1 (de)
CN (1) CN101512154A (de)
DE (1) DE102006042021A1 (de)
RU (1) RU2451210C2 (de)
WO (1) WO2008028737A1 (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090214361A1 (en) * 2005-03-17 2009-08-27 Traian Voicu Oil-less compressor with seal-dust protection
US20100247308A1 (en) * 2007-11-14 2010-09-30 Bsh Bosch Und Siemens Hausgerate Gmbh Aerostatic bearing and method for production thereof
WO2013071382A3 (en) * 2011-11-16 2013-08-01 Whirpool S.A. Flow restrictor and gas compressor
US20140053720A1 (en) * 2012-08-24 2014-02-27 KwangWoon Ahn Reciprocating compressor
EP2848810A1 (de) * 2013-09-16 2015-03-18 Lg Electronics Inc. Kolbenkompressor
EP2568172A3 (de) * 2011-09-06 2015-07-01 Lg Electronics Inc. Kolbenkompressor
US20150226203A1 (en) * 2014-02-10 2015-08-13 General Electric Company Linear compressor
US20150226191A1 (en) * 2012-09-03 2015-08-13 Le Electronics Inc. Reciprocating compressor and method for driving same
US20150369237A1 (en) * 2014-06-24 2015-12-24 Lg Electronics Inc. Linear compressor
US20150369224A1 (en) * 2014-06-24 2015-12-24 Lg Electronics Inc. Linear compressor
US20150369225A1 (en) * 2014-06-24 2015-12-24 Lg Electronics Inc. Linear compressor
US20150377531A1 (en) * 2014-06-26 2015-12-31 Lg Electronics Inc. Linear compressor and refrigerator including a linear compressor
US20170321671A1 (en) * 2016-05-03 2017-11-09 Lg Electronics Inc. Linear compressor
KR20170124906A (ko) * 2016-05-03 2017-11-13 엘지전자 주식회사 리니어 압축기 및 그 제조방법
US10288063B2 (en) * 2013-02-07 2019-05-14 Whirlpool S.A. Flow restrictor and gas compressor
EP3569861A1 (de) * 2018-05-16 2019-11-20 Lg Electronics Inc. Linearverdichter
US11118579B2 (en) * 2018-07-03 2021-09-14 Lg Electronics Inc. Linear compressor
US11644030B2 (en) * 2018-09-06 2023-05-09 Lg Electronics Inc. Linear compressor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006800A1 (de) 2011-04-05 2012-10-11 BSH Bosch und Siemens Hausgeräte GmbH Verdichter eines Kältemittelkreislaufs, insbesondere eines Haushaltskältegeräts
BRPI1105480A2 (pt) * 2011-11-16 2016-01-19 Whirlpool Sa restritor de fluxo e compressor de gás

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US3407013A (en) * 1967-02-15 1968-10-22 Apex Bearing Company Bearing systems
US4873913A (en) * 1986-09-12 1989-10-17 Helix Technology Corporation Dry roughing pump having a gas film bearing
US5562427A (en) * 1992-10-23 1996-10-08 Matsushita Refrigeration Company Filter arrangement for a refrigerant compressor
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US20080000348A1 (en) * 2004-12-23 2008-01-03 Bsh Bosch Und Siemens Hausgerate Gmbh Linear Compressor
US7913613B2 (en) * 2004-12-22 2011-03-29 Bsh Bosch Und Siemens Hausgeraete Gmbh Piston/cylinder unit

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RU2041393C1 (ru) * 1990-05-17 1995-08-09 Валерий Измаилович Мулуянов Поршневой компрессор с электродинамическим приводом
TW504546B (en) * 2000-10-17 2002-10-01 Fisher & Amp Paykel Ltd A linear compressor
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DE212005000082U1 (de) 2005-08-08 2008-04-24 Carrier Corp., Farmington Fluidmaschine oder Pumpe und Installation mit einer Fluidmaschine oder Pumpe

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US3407013A (en) * 1967-02-15 1968-10-22 Apex Bearing Company Bearing systems
US4873913A (en) * 1986-09-12 1989-10-17 Helix Technology Corporation Dry roughing pump having a gas film bearing
US5562427A (en) * 1992-10-23 1996-10-08 Matsushita Refrigeration Company Filter arrangement for a refrigerant compressor
US6575716B1 (en) * 1998-12-01 2003-06-10 Matsushita Refrigeration Co. Linear compressor
US6858067B2 (en) * 2002-11-12 2005-02-22 Perry Equipment Corporation Filtration vessel and method for rotary gas compressor system
US20040141862A1 (en) * 2003-01-16 2004-07-22 R. Conrader Company Air compressor unit inlet control
US20070257562A1 (en) * 2004-03-05 2007-11-08 Bsh Bosch Und Siemens Hausgerate Gmbh Linear Drive Unit with an Oscillating Armature Part and a Spring
US7913613B2 (en) * 2004-12-22 2011-03-29 Bsh Bosch Und Siemens Hausgeraete Gmbh Piston/cylinder unit
US20080000348A1 (en) * 2004-12-23 2008-01-03 Bsh Bosch Und Siemens Hausgerate Gmbh Linear Compressor

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090214361A1 (en) * 2005-03-17 2009-08-27 Traian Voicu Oil-less compressor with seal-dust protection
US20100247308A1 (en) * 2007-11-14 2010-09-30 Bsh Bosch Und Siemens Hausgerate Gmbh Aerostatic bearing and method for production thereof
US8714075B2 (en) * 2007-11-14 2014-05-06 Bsh Bosch Und Siemens Hausgerate Gmbh Aerostatic bearing and method for production thereof
EP2568172A3 (de) * 2011-09-06 2015-07-01 Lg Electronics Inc. Kolbenkompressor
US9599130B2 (en) 2011-11-16 2017-03-21 Whirlpool S.A. Flow restrictor and gas compressor
WO2013071382A3 (en) * 2011-11-16 2013-08-01 Whirpool S.A. Flow restrictor and gas compressor
US20140053720A1 (en) * 2012-08-24 2014-02-27 KwangWoon Ahn Reciprocating compressor
US10125754B2 (en) 2012-08-24 2018-11-13 Lg Electronics Inc. Reciprocating compressor having casing including inner and outer shells
US9494148B2 (en) * 2012-08-24 2016-11-15 Lg Electronics Inc. Reciprocating compressor having fluid bearing
US9845797B2 (en) * 2012-09-03 2017-12-19 Lg Electronics Inc. Reciprocating compressor and method for driving same
US20150226191A1 (en) * 2012-09-03 2015-08-13 Le Electronics Inc. Reciprocating compressor and method for driving same
EP2910782A4 (de) * 2012-09-03 2016-06-29 Lg Electronics Inc Kolbenkompressor und verfahren zur ansteuerung davon
US10288063B2 (en) * 2013-02-07 2019-05-14 Whirlpool S.A. Flow restrictor and gas compressor
US10837434B2 (en) 2013-09-16 2020-11-17 Lg Electronics Inc. Reciprocating compressor having a gas bearing
US10151308B2 (en) * 2013-09-16 2018-12-11 Lg Electronics Inc. Reciprocating compressor having a gas bearing
EP2848810A1 (de) * 2013-09-16 2015-03-18 Lg Electronics Inc. Kolbenkompressor
US20180320678A1 (en) * 2013-09-16 2018-11-08 Lg Electromics Inc. Reciprocating compressor having a gas bearing
EP3372834A1 (de) * 2013-09-16 2018-09-12 LG Electronics Inc. Hubkolbenverdichter
US20150078925A1 (en) * 2013-09-16 2015-03-19 Lg Electronics Inc. Reciprocating compressor
US20150226203A1 (en) * 2014-02-10 2015-08-13 General Electric Company Linear compressor
US9322401B2 (en) * 2014-02-10 2016-04-26 General Electric Company Linear compressor
US9890779B2 (en) * 2014-06-24 2018-02-13 Lg Electronics Inc. Linear compressor
US20150369237A1 (en) * 2014-06-24 2015-12-24 Lg Electronics Inc. Linear compressor
US10352313B2 (en) * 2014-06-24 2019-07-16 Lg Electronics Inc. Linear compressor
US20150369224A1 (en) * 2014-06-24 2015-12-24 Lg Electronics Inc. Linear compressor
US9863410B2 (en) * 2014-06-24 2018-01-09 Lg Electronics Inc. Linear compressor
US20150369225A1 (en) * 2014-06-24 2015-12-24 Lg Electronics Inc. Linear compressor
EP2960505A3 (de) * 2014-06-24 2016-03-23 LG Electronics Inc. Linearverdichter
JP2016008610A (ja) * 2014-06-26 2016-01-18 エルジー エレクトロニクス インコーポレイティド リニア圧縮機及びそれを含む冷蔵庫
US20150377531A1 (en) * 2014-06-26 2015-12-31 Lg Electronics Inc. Linear compressor and refrigerator including a linear compressor
EP2960508A3 (de) * 2014-06-26 2016-02-24 LG Electronics Inc. Linearverdichter und kühlschrank mit einem linearverdichter
KR20170124903A (ko) * 2016-05-03 2017-11-13 엘지전자 주식회사 리니어 압축기
US10941758B2 (en) 2016-05-03 2021-03-09 Lg Electronics Inc. Linear compressor and method for manufacturing a linear compressor
KR102257499B1 (ko) * 2016-05-03 2021-05-31 엘지전자 주식회사 리니어 압축기 및 그 제조방법
US10487814B2 (en) * 2016-05-03 2019-11-26 Lg Electronics Inc. Linear compressor
KR20170124906A (ko) * 2016-05-03 2017-11-13 엘지전자 주식회사 리니어 압축기 및 그 제조방법
KR102257479B1 (ko) * 2016-05-03 2021-05-31 엘지전자 주식회사 리니어 압축기
US20170321671A1 (en) * 2016-05-03 2017-11-09 Lg Electronics Inc. Linear compressor
KR20190131362A (ko) * 2018-05-16 2019-11-26 엘지전자 주식회사 리니어 압축기
KR102048995B1 (ko) * 2018-05-16 2019-11-27 엘지전자 주식회사 리니어 압축기
EP3569861A1 (de) * 2018-05-16 2019-11-20 Lg Electronics Inc. Linearverdichter
EP3859152A1 (de) * 2018-05-16 2021-08-04 LG Electronics Inc. Linearverdichter
US11231025B2 (en) 2018-05-16 2022-01-25 Lg Electronics Inc. Linear compressor
US11261856B2 (en) 2018-05-16 2022-03-01 Lg Electronics Inc. Linear compressor
US11118579B2 (en) * 2018-07-03 2021-09-14 Lg Electronics Inc. Linear compressor
US11644030B2 (en) * 2018-09-06 2023-05-09 Lg Electronics Inc. Linear compressor

Also Published As

Publication number Publication date
RU2009110165A (ru) 2010-10-20
DE102006042021A1 (de) 2008-03-27
EP2064446A1 (de) 2009-06-03
WO2008028737A1 (de) 2008-03-13
RU2451210C2 (ru) 2012-05-20
EP2064446B1 (de) 2012-06-27
CN101512154A (zh) 2009-08-19

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