EP2064446B1 - Verdichter mit gasdruckgelagertem kolben - Google Patents

Verdichter mit gasdruckgelagertem kolben Download PDF

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Publication number
EP2064446B1
EP2064446B1 EP20070802522 EP07802522A EP2064446B1 EP 2064446 B1 EP2064446 B1 EP 2064446B1 EP 20070802522 EP20070802522 EP 20070802522 EP 07802522 A EP07802522 A EP 07802522A EP 2064446 B1 EP2064446 B1 EP 2064446B1
Authority
EP
European Patent Office
Prior art keywords
compressor
piston
working chamber
compressor according
gas
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.)
Not-in-force
Application number
EP20070802522
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2064446A1 (de
Inventor
Marco Giacchi
Jan-Grigor Schubert
Thorsten Kusnik
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
Publication of EP2064446A1 publication Critical patent/EP2064446A1/de
Application granted granted Critical
Publication of EP2064446B1 publication Critical patent/EP2064446B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F04B39/126—Cylinder liners
    • 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
    • F04B35/00—Piston 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
    • F04B35/04—Piston 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
    • F04B35/045—Piston 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
    • 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
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing
    • F04B39/0292—Lubrication of pistons or cylinders
    • 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
    • F04B39/16—Filtration; Moisture separation
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/794—With means for separating solid material from the fluid

Definitions

  • the present invention relates to a compressor with gastikgelagertem piston, in particular for use as a refrigerant compressor in a household refrigerator.
  • the publication DE 20 18 940 A1 shows a relaxation machine for gases in Hubkolbenbauart.
  • the publication WO 02/35093 A1 shows a compressor with a piston which is connected by means of a piston rod with a spring.
  • the object of the invention is therefore to provide a compressor with compressed gas storage, which allows to reliably prevent such fretting.
  • a compressor having an inlet connection and an outlet connection for a gas to be compressed and a working chamber in which a piston is movable for compressing the gas, wherein openings communicating with the outlet connection are formed in a wall of the working chamber swept by the piston and characterized by a particulate filter disposed in a flow path of the gas through the compressor between the inlet port and the outlet port.
  • a remedy here is the particle filter according to the invention in that it prevents these foreign impurities from reaching the wall openings.
  • Such a particle filter may be provided at various points in the compressor.
  • the particulate filter is arranged between the inlet port and the working chamber.
  • Such a particle filter has the advantage that foreign contaminants are prevented from the outset to reach the working chamber. This is particularly desirable in the case of coarse foreign contaminants, which can cause damage just by their presence in the working chamber.
  • a disadvantage of such a placement of the particulate filter is that the filtration of the complete gas stream passing through the compressor requires a considerable drive power and consequently adversely affects the efficiency of the compressor.
  • the pressure drop across such a particulate filter can never become greater than the pressure at the inlet port itself, so that a high conductance and accordingly a large cross-section of the filter may be required to achieve sufficient throughput.
  • the particle filter is arranged in a line connecting an output of the working chamber to the outlet port between the outlet and a branch line leading to the openings.
  • This arrangement of the filter does not lead to an undesirable increase in pressure at the inlet port of the compressor.
  • a higher pressure drop can be built up than on the inlet-side filter described above, so that a sufficient throughput can also be achieved on a compact filter, but such a high pressure drop in turn impairs the efficiency of the compressor.
  • a branch line leading to the openings branches off from a pressure line connecting an outlet of the working chamber to the outlet connection, and the particle filter is arranged in the branch line. Since such a particulate filter acts only on that fraction of the gas flow needed to produce the gas cushion, the driving power that must be expended for filtering is small, even if the pressure drop across the particulate filter is the same as that of the second one design.
  • the arranged in the branch filter does not prevent from the outset that foreign contaminants pass through the compressor, but it still catches all in the course of the operation of the compressor as soon as they fall into the branch line.
  • the branch line comprises a distribution chamber and a bore connecting the distribution chamber to the pressure line, the wall swept by the piston forming a partition wall between the working chamber and the distribution chamber.
  • the particulate filter can be arranged small and compact in the bore, or it can be arranged overlapping the partition in the distribution chamber.
  • the distribution chamber is preferably a hollow cylinder extending around the cylindrical working chamber.
  • Fig. 1 shows a schematic section through a compressor according to a first embodiment of the invention.
  • the compressor is part of a refrigerator of a household refrigerator, which, since its other components are known, is not shown.
  • a piston 2 by a not shown, also known per se drive unit is movable back and forth.
  • the drive unit may, for example, a linear motor such as in DE 10 2004 010 849 A1 in general, however, any drive assembly capable of producing a driving force whose transverse components are small enough is contemplated.
  • a frictional contact between the walls of the working chamber 1 and the piston 2 can be safely avoided.
  • a suction valve 3 and a pressure valve 4 which connect the working chamber 1 with a suction line 5 and a pressure line 6 and via this with an inlet port 12 and an outlet port 13.
  • a particle filter 7 is attached in the suction line 5.
  • a bore 8 leads to a distribution chamber 9 of hollow cylindrical shape, which surrounds the working chamber 1, so that the swept by the piston 2 in its movement wall 10 of the working chamber 1 is a partition wall between the working chamber 1 and the distribution chamber 9. In this wall 10 a plurality of narrow openings 11 is distributed.
  • the piston 2 sucks in refrigerant from the inlet port 12 via the suction line 5, the particle filter 7 and the suction valve 3 in the working chamber 1 to the right.
  • the content of the working chamber 1 is first compressed to the pressure prevailing in the pressure line 6 before the pressure valve 4 opens and the compressed gas flows into the pressure line 6.
  • a small part of the gas flowing in the pressure line 6 passes through the bore 8 in the distribution chamber 9 and from there via the openings 11 of the wall 10 back into the working chamber 1, where it forms a gas cushion between the piston 2 and the wall 10.
  • Fig. 2 The embodiment shown differs from that of Fig. 1 in that the particle filter 7 is not arranged in the suction line 5, but in the pressure line 6 between the pressure valve 4 and the bore 8. As in the case of the embodiment of Fig. 1 the entire refrigerant passing through the compressor passes through the particulate filter 7. Due to the arrangement of the particulate filter 7 in the pressure line 6, a higher pressure drop can be built on the particulate filter 7 as in the embodiment of Fig. 1 , so that even with a compact filter sufficient throughput can be achieved.
  • the design of the Fig. 3 differs from the two explained above by the placement of the particulate filter 7 in the distribution chamber 9. It rests there on the wall 10, so that it is pressed by the pressure difference between its outer and inner side against the wall 10. Since only a fraction of the refrigerant flow rate of the compressor passes through the filter and the drive power consumed during filtering corresponds to the product of filter throughput and pressure drop, the power requirement due to the filtering in this embodiment is only a fraction of the additional demand of the first two embodiments.
  • the attachment of the particulate filter 7 in the distribution chamber 9 has the advantage that the particle filter 7 can be traversed by the refrigerant on a very large cross-sectional area, so that even when using a very narrow-pored filter sufficient to maintain the gas cushion throughput can be achieved.
  • the particulate filter 7 here preferably has a layer structure with a fine-pored outer layer 7a and a coarse-pored, well-permeable inner layer whose function is essentially a distance between the fine-pored layer 7a and the wall 10 to maintain, in which the gas can be evenly distributed to the openings 11.
  • Fig. 4 The presently preferred embodiment of the invention is in Fig. 4 shown.
  • This embodiment differs from the previously described in that the bore 8, which connects the distribution chamber 9 with the pressure line 6, is long and wide enough to receive the particulate filter 7 in the form of a filter cartridge 14.
  • the filter cartridge is inserted into the bore 8 of the pressure line 6 facing the end.
  • a pressure-side flange 15 of the filter cartridge rests against a shoulder 16 formed at the entrance of the bore 8, so that the filter cartridge 14 is pressed against the shoulder 16 by the pressure drop which it generates on the refrigerant flowing through it.
  • the suction-side particle filter 7 of the embodiment of Fig. 1 also with the arranged on the way of the refrigerant from the pressure line 6 to the openings 11 particulate filter according to 3 or 4 be combined.
  • the suction-side particulate filter may be a coarse-pored filter having a small flow resistance, which serves only to keep coarse contaminants from the working chamber 1, while finer impurities are intercepted by the pressure-side particulate filter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP20070802522 2006-09-07 2007-08-07 Verdichter mit gasdruckgelagertem kolben Not-in-force EP2064446B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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 (2)

Publication Number Publication Date
EP2064446A1 EP2064446A1 (de) 2009-06-03
EP2064446B1 true EP2064446B1 (de) 2012-06-27

Family

ID=38669639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070802522 Not-in-force EP2064446B1 (de) 2006-09-07 2007-08-07 Verdichter mit gasdruckgelagertem kolben

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107339216A (zh) * 2016-05-03 2017-11-10 Lg电子株式会社 线性压缩机

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PL1869322T3 (pl) * 2005-03-17 2013-05-31 M T M S R L Bezolejowa sprężarka z przeciwpyłowym uszczelnieniem
DE102007054334A1 (de) * 2007-11-14 2009-05-20 BSH Bosch und Siemens Hausgeräte GmbH Aerostatisches Lager und Verfahren zu dessen Herstellung
DE102011006800A1 (de) 2011-04-05 2012-10-11 BSH Bosch und Siemens Hausgeräte GmbH Verdichter eines Kältemittelkreislaufs, insbesondere eines Haushaltskältegeräts
KR101860340B1 (ko) * 2011-09-06 2018-05-23 엘지전자 주식회사 왕복동식 압축기
BRPI1105480A2 (pt) * 2011-11-16 2016-01-19 Whirlpool Sa restritor de fluxo e compressor de gás
BRPI1105473B1 (pt) 2011-11-16 2020-12-01 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. compressor de gás compreendendo uma mancalização aerostática
ES2607379T3 (es) 2012-08-24 2017-03-31 Lg Electronics Inc. Compresor alternativo
EP2910782B1 (en) * 2012-09-03 2019-07-10 LG Electronics Inc. Reciprocating compressor and method for driving same
BR102013003056A2 (pt) * 2013-02-07 2014-09-16 Whirlpool Sa Restritor de fluxo e compressor de gás
KR102121585B1 (ko) * 2013-09-16 2020-06-11 엘지전자 주식회사 왕복동식 압축기
US9322401B2 (en) * 2014-02-10 2016-04-26 General Electric Company Linear compressor
KR102191193B1 (ko) * 2014-06-24 2020-12-15 엘지전자 주식회사 리니어 압축기
US10352313B2 (en) * 2014-06-24 2019-07-16 Lg Electronics Inc. Linear compressor
KR102234726B1 (ko) * 2014-06-24 2021-04-02 엘지전자 주식회사 리니어 압축기
KR102201629B1 (ko) * 2014-06-26 2021-01-12 엘지전자 주식회사 리니어 압축기 및 이를 포함하는 냉장고
KR102257499B1 (ko) 2016-05-03 2021-05-31 엘지전자 주식회사 리니어 압축기 및 그 제조방법
KR102048995B1 (ko) * 2018-05-16 2019-11-27 엘지전자 주식회사 리니어 압축기
KR102100674B1 (ko) * 2018-07-03 2020-04-14 엘지전자 주식회사 리니어 압축기
KR102103184B1 (ko) * 2018-09-06 2020-04-22 엘지전자 주식회사 리니어 압축기

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Publication number Priority date Publication date Assignee Title
CN107339216A (zh) * 2016-05-03 2017-11-10 Lg电子株式会社 线性压缩机
CN107339216B (zh) * 2016-05-03 2019-07-05 Lg电子株式会社 线性压缩机

Also Published As

Publication number Publication date
WO2008028737A1 (de) 2008-03-13
DE102006042021A1 (de) 2008-03-27
RU2451210C2 (ru) 2012-05-20
RU2009110165A (ru) 2010-10-20
US20090238701A1 (en) 2009-09-24
EP2064446A1 (de) 2009-06-03
CN101512154A (zh) 2009-08-19

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