EP1831554B1 - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
EP1831554B1
EP1831554B1 EP05810968A EP05810968A EP1831554B1 EP 1831554 B1 EP1831554 B1 EP 1831554B1 EP 05810968 A EP05810968 A EP 05810968A EP 05810968 A EP05810968 A EP 05810968A EP 1831554 B1 EP1831554 B1 EP 1831554B1
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EP
European Patent Office
Prior art keywords
piston
cylinder
linear compressor
layer
slide layer
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
EP05810968A
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German (de)
French (fr)
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EP1831554A1 (en
Inventor
Jan-Grigor Schubert
Georg Slotta
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
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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.)
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Publication date
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Publication of EP1831554A1 publication Critical patent/EP1831554A1/en
Application granted granted Critical
Publication of EP1831554B1 publication Critical patent/EP1831554B1/en
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
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating

Definitions

  • the present invention relates to a linear compressor, in particular for use for compressing refrigerant in a refrigeration device.
  • US Pat. No. 6,596,032 B2 is a linear compressor with a cylinder, in the cylinder in the longitudinal direction of oscillating movable, fluid-pressure-bearing piston and a movement of the piston driving drive unit known.
  • a circumferential cavity is formed in the wall of the cylinder, which is supplied with pressurized fluid and communicates with the interior of the cylinder in which the piston moves through a plurality of openings distributed over the side wall of the cylinder. From these openings in the cylinder chamber penetrating pressurized fluid forms a cushion on which the piston slides without contact with the side wall. Since the pad prevents frictional contact between the piston and the cylinder, such a linear compressor can operate for a long time in continuous operation without frictional wear leading to a noticeable decrease in the efficiency.
  • the object of the present invention is to further develop the linear compressor according to the preamble in such a way that it has a constant efficiency even during long-term operation in a practical application such as a refrigeration device.
  • the in Fig. 1 in a perspective view shown linear compressor has a rigid, in plan view in approximately U-shaped frame, which is composed of three parts, namely two flat wall pieces 1 and a sheet 2. Between facing end faces of the sheet 2 and the two wall pieces 1, a first diaphragm spring 3 is clamped; a second diaphragm spring 4 of the same shape as the diaphragm spring 3 is attached to the end faces of the wall pieces 1 facing away from the arc.
  • the membrane springs 3, 4 punched from spring plate each have two elongated edge strips 7 which cover the end faces of the wall pieces 1 and of the arch 2, respectively, and four spring arms 5 which extend in zigzag from the ends of the edge strips 7 to a middle section 6, where they meet.
  • the central portion 6 has three holes, two outer, to which by means of screws or rivets 13, a permanent magnetic oscillating body 8 is suspended, and a central bore through which in the diaphragm spring 3 a to the oscillating body 8, z. B. by screwing, fixed rod portion 10 extends.
  • the rod portion 10 is connected to a transmission rod 9 via a flexibly flexible tapered portion 11.
  • a second tapered portion 12 connects the transmission rod 11 integrally with a piston rod 14, which engages in a pumping chamber 15 supported by the arc 2, is guided through a bore in an end wall of the pumping chamber and in the pumping chamber 15 with a piston 16 therein (see Fig. 2 ) connected is.
  • Two electromagnets with an E-shaped yoke and a coil wound around the middle leg of the E are each arranged between the oscillating body 8 and the wall pieces 1 with the oscillating body facing pole pieces and serve to drive a vibrating movement of the oscillating body.
  • the pumping chamber 15 is annularly surrounded by a cavity 17 which communicates with the pumping chamber 15 through a plurality of openings 18 in the side wall thereof and which is fed via a passage 19 with compressed gas branched from a pressure port 20 of the pumping chamber.
  • the pressure gas entering through the openings 18 in the pumping chamber 15 forms on the side wall a cushion on which the piston 16, whose diameter is slightly smaller than the free diameter of the pumping chamber 15, slides substantially without friction.
  • the lateral surface of the piston 16 sliding along the wall of the pumping chamber 15 is coated with a DLC (diamond-like carbon) layer 21.
  • the DLC layer 21 may be a tetrahedral carbon layer (ta-C) or an amorphous hydrogen-containing carbon layer (a-C: H).
  • ta-C tetrahedral carbon layer
  • a-C amorphous hydrogen-containing carbon layer

Abstract

A linear compressor comprises a cylinder (15), a hydraulically borne piston (16) that can be longitudinally oscillated inside the cylinder (15) and a drive unit (1-14) driving the movement of the piston. The compressor is characterized in that at least one of the lateral faces of the piston (16) and the cylinder (15) that face each other is provided with an abrasion-resistant bearing coating (21).

Description

Die vorliegende Erfindung betrifft einen Linearverdichter, insbesondere für den Einsatz zum Verdichten von Kältemittel in einem Kältegerät.The present invention relates to a linear compressor, in particular for use for compressing refrigerant in a refrigeration device.

Aus US6 596 032 B2 ist ein Linearverdichter mit einem Zylinder, einem in dem Zylinder in dessen Längsrichtung oszillierend beweglichen, druckfluidgelagerten Kolben und einem die Bewegung des Kolbens antreibenden Antriebsaggregat bekannt. Bei diesem Linearverdichter ist in der Wand des Zylinders ein umlaufender Hohlraum gebildet, der mit Druckfluid gespeist ist und mit dem Innenraum des Zylinders, in welchem sich der Kolben bewegt, durch eine Vielzahl von über die Seitenwand des Zylinders verteilten Öffnungen kommuniziert. Aus diesen Öffnungen in die Zylinderkammer eindringendes Druckfluid bildet ein Kissen, auf dem der Kolben ohne Kontakt mit der Seitenwand gleitet. Da das Kissen einen Reibkontakt zwischen Kolben und Zylinder verhindert, kann ein solcher Linearverdichter im Dauerbetrieb lange Zeit arbeiten, ohne dass Reibverschleiß zu einer merklichen Abnahme des Wirkungsgrades führt.Out US Pat. No. 6,596,032 B2 is a linear compressor with a cylinder, in the cylinder in the longitudinal direction of oscillating movable, fluid-pressure-bearing piston and a movement of the piston driving drive unit known. In this linear compressor, a circumferential cavity is formed in the wall of the cylinder, which is supplied with pressurized fluid and communicates with the interior of the cylinder in which the piston moves through a plurality of openings distributed over the side wall of the cylinder. From these openings in the cylinder chamber penetrating pressurized fluid forms a cushion on which the piston slides without contact with the side wall. Since the pad prevents frictional contact between the piston and the cylinder, such a linear compressor can operate for a long time in continuous operation without frictional wear leading to a noticeable decrease in the efficiency.

Beim praktischen Einsatz des Verdichters in einem Kältegerät hingegen zeigt sich eine unerwartet schnelle Abnahme des Wirkungsgrades.In practical use of the compressor in a refrigerator, however, shows an unexpectedly rapid decrease in efficiency.

Aus US6 642 377 B2 ist ein Linearverdichter bekannt, bei dem der Kolben nicht druckfluidgelagert ist. Um eine exakte Ausrichtung des Kolbens im Zylinder zu erzielen, wird vorgeschlagen, vor dem Einfügen des Kolbens in die Zylinderkammer eine Beschichtung aus einem festen Gleitmittel wie etwa PTFE oder eine DLC-Schicht an der Oberfläche des Kolbens oder des Zylinders anzubringen, so dass Kolben und Zylinder zusammengefügt werden können und ein zwischen ihnen für den Dauerbetrieb erforderliches Spiel durch Abtragen der Beschichtung in einer Einlaufphase des Verdichters erhalten wird.Out US6 642 377 B2 a linear compressor is known in which the piston is not stored under pressure fluid. In order to achieve an exact alignment of the piston in the cylinder, it is proposed to apply a coating of a solid lubricant such as PTFE or a DLC layer on the surface of the piston or cylinder before inserting the piston into the cylinder chamber, so that piston and Cylinders can be joined together and a game between them required for continuous operation by removing the coating is obtained in an intake phase of the compressor.

Aus EP 1 450 042 A1 (nächsten Stand der Technik) ist bekannt, den Kolben eines Linearverdichters zu beschichten, wobei das Material des Kolbens und/oder seiner Beschichtung einen größeren thermischen Ausdehnungskoeffizienten aufweist als das Material des Zylinders.Out EP 1 450 042 A1 (Next prior art) is known to coat the piston of a linear compressor, wherein the material of the piston and / or its coating has a greater thermal expansion coefficient than the material of the cylinder.

Aufgabe der vorliegenden Erfindung ist, den oberbegriffsgemäßen Linearverdichter so weiterzubilden, dass dieser auch bei lang andauerndem Betrieb in einer praktischen Anwendung wie etwa einem Kältegerät einen gleichbleibenden Wirkungsgrad aufweist.The object of the present invention is to further develop the linear compressor according to the preamble in such a way that it has a constant efficiency even during long-term operation in a practical application such as a refrigeration device.

Die Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.The object is solved by the features of claim 1.

Es zeigt sich nämlich, dass unerwarteterweise beim Betrieb eines Linearverdichters vom oberbegriffsgemäßen Typ in einem Kältegerät nach langem Betrieb trotz der Druckfluidlagerung Reibverschleißerscheinungen an Zylinder und Kolben auftreten, die zu einem im Laufe der Zeit zunehmenden Entweichen von Fluid aus der Zylinderkammer durch den Spalt zwischen Kolben und Zylinderwand führen. Wenn nämlich das Druckfluid, das zur Aufrechterhaltung des Kissens benötigt wird, von einem Hochdruckanschluss des Verdichters abgezweigt wird, so hat dies zur Folge, dass jeweils zu Beginn und Ende einer Betriebsphase des Verdichters, wenn der Druck am Hochdruckanschluss des Verdichters niedriger ist als während des kontinuierlichen Betriebs, das Kissen nicht ausreichend wirksam ist, um einen Reibkontakt zwischen den Seitenflächen von Kolben und Zylinder zu verhindern. Um in diesen Betriebsphasen Verschleiß zu verhindern, ist die abriebfeste Gleitschicht erforderlich.It turns out that unexpectedly when operating a linear compressor of the generic type in a refrigerator after long operation despite the pressurized fluid friction Reibverschleißerscheinungen on cylinder and piston occur, leading to an increasing over time escape of fluid from the cylinder chamber through the gap between the piston and Lead cylinder wall. Namely, when the pressure fluid needed to maintain the pad is diverted from a high pressure port of the compressor, this results in each case at the beginning and end of an operating phase of the compressor, when the pressure at the high pressure port of the compressor is lower than during the continuous operation, the pad is not sufficiently effective to prevent frictional contact between the side surfaces of the piston and cylinder. In order to prevent wear in these operating phases, the abrasion-resistant sliding layer is required.

Während bei dem Verdichter aus US6 642 377 B2 die DLC- oder PTFE-Gleitschicht nicht abriebfest sein soll, so dass sie abgetragen ist, wenn ein für den Betrieb des Verdichters gewünschtes Spiel zwischen Kolben und Zylinder hergestellt ist, ist es für die vorliegende Erfindung wichtig, dass die Gleitschicht auch vorhanden ist, wenn das für einen effizienten Betrieb der Druckfluidlagerung erforderliche Spiel zwischen den Seitenflächen von Kolben und Zylinder vorhanden ist. Überraschender Weise wurde herausgefunden, dass die Gleitschicht nicht wirkungsgradmindernd wirkt und ein wirkungsgradoptimierter Betrieb des Verdichters über dessen Brauchbarkeitsdauer durch die Gleitschicht erzielt ist.While off at the compressor US6 642 377 B2 It is important for the present invention that the slip layer be present when the clearance required between the side surfaces of the piston and cylinder for efficient operation of the pressurized fluid bearing is provided. Surprisingly, it has been found that the sliding layer does not have a reduction in efficiency and an efficiency-optimized operation of the compressor over its useful life is achieved by the sliding layer.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beigefügten Figuren. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Linearverdichters; und
Fig. 2
einen Schnitt durch den Zylinder des Linearverdichters.
Further features and advantages of the invention will become apparent from the following description of an embodiment with reference to the accompanying figures. Show it:
Fig. 1
a perspective view of a linear compressor; and
Fig. 2
a section through the cylinder of the linear compressor.

Der in Fig. 1 in perspektivischer Ansicht gezeigte Linearverdichter hat einen steifen, in Draufsicht in etwa U-förmigen Rahmen, der aus drei Teilen, nämlich zwei flachen Wandstücken 1 und einem Bogen 2, zusammengesetzt ist. Zwischen einander zugewandten Stirnseiten des Bogens 2 und der zwei Wandstücke 1 ist eine erste Membranfeder 3 eingespannt; eine zweite Membranfeder 4 von gleicher Gestalt wie die Membranfeder 3 ist an den vom Bogen abgewandten Stirnseiten der Wandstücke 1 befestigt.The in Fig. 1 in a perspective view shown linear compressor has a rigid, in plan view in approximately U-shaped frame, which is composed of three parts, namely two flat wall pieces 1 and a sheet 2. Between facing end faces of the sheet 2 and the two wall pieces 1, a first diaphragm spring 3 is clamped; a second diaphragm spring 4 of the same shape as the diaphragm spring 3 is attached to the end faces of the wall pieces 1 facing away from the arc.

Die aus Federblech gestanzten Membranfedern 3, 4 haben jeweils zwei langgestreckte Randstreifen 7, der die Stirnseiten der Wandstücke 1 bzw. des Bogens 2 überdecken, und vier Federarme 5, die sich im Zickzack von den Enden der Randstreifen 7 aus zu einem Mittelabschnitt 6 erstrecken, an dem sie zusammentreffen. Der Mittelabschnitt 6 weist jeweils drei Bohrungen auf, zwei äußere, an denen mit Hilfe von Schrauben oder Nieten 13 ein permanentmagnetischer Schwingkörper 8 aufgehängt ist, und eine mittlere Bohrung, durch die sich bei der Membranfeder 3 ein an den Schwingkörper 8, z. B. durch Verschraubung, befestigter Stangenabschnitt 10 erstreckt.The membrane springs 3, 4 punched from spring plate each have two elongated edge strips 7 which cover the end faces of the wall pieces 1 and of the arch 2, respectively, and four spring arms 5 which extend in zigzag from the ends of the edge strips 7 to a middle section 6, where they meet. The central portion 6 has three holes, two outer, to which by means of screws or rivets 13, a permanent magnetic oscillating body 8 is suspended, and a central bore through which in the diaphragm spring 3 a to the oscillating body 8, z. B. by screwing, fixed rod portion 10 extends.

Der Stangenabschnitt 10 ist mit einer Übertragungsstange 9 über einen flexibel biegsamen verjüngten Abschnitt 11 verbunden. Ein zweiter verjüngter Abschnitt 12 verbindet die Übertragungsstange 11 einteilig mit einer Kolbenstange 14, die in eine von dem Bogen 2 getragene Pumpkammer 15 eingreift, durch eine Bohrung in einer Stirnwand der Pumpkammer geführt ist und in der Pumpkammer 15 mit einem darin beweglichen Kolben 16 (siehe Fig. 2) verbunden ist.The rod portion 10 is connected to a transmission rod 9 via a flexibly flexible tapered portion 11. A second tapered portion 12 connects the transmission rod 11 integrally with a piston rod 14, which engages in a pumping chamber 15 supported by the arc 2, is guided through a bore in an end wall of the pumping chamber and in the pumping chamber 15 with a piston 16 therein (see Fig. 2 ) connected is.

Zwei Elektromagnete mit E-förmigen Joch und einer um den mittleren Schenkel des E gewickelten Spule sind jeweils zwischen dem Schwingkörper 8 und den Wandstücken 1 mit dem Schwingkörper zugewandten Polschuhen angeordnet und dienen zum Antreiben einer Schwingbewegung des Schwingkörpers 8.Two electromagnets with an E-shaped yoke and a coil wound around the middle leg of the E are each arranged between the oscillating body 8 and the wall pieces 1 with the oscillating body facing pole pieces and serve to drive a vibrating movement of the oscillating body. 8

Da die starr mit dem Kolben 16 verbundene Kolbenstange 14 in der stirnseitigen Bohrung der Pumpkammer 15 geführt ist, ist der Kolben 16 gegen Verkanten geschützt, auch wenn seine Ausdehnung in Richtung der Hin- und Herbewegung gering ist. Der Kolben 16 belegt daher wenig Platz in der Pumpkammer 14, so dass ein großes wirksames Volumen bei kleinen Außenabmessungen erreicht wird.Since the piston rod 14 connected rigidly to the piston 16 is guided in the frontal bore of the pumping chamber 15, the piston 16 is protected against tilting, even if its extension in the direction of the reciprocating motion is small. The piston 16 therefore occupies little space in the pumping chamber 14, so that a large effective volume is achieved with small outer dimensions.

Die Pumpkammer 15 ist von einem Hohlraum 17 ringförmig umgeben, der mit der Pumpkammer 15 durch eine Vielzahl von Öffnungen 18 in deren Seitenwand kommuniziert und der über einen Durchgang 19 mit von einem Druckanschluss 20 der Pumpkammer abgezweigtem verdichtetem Gas gespeist ist. Das durch die Öffnungen 18 in die Pumpkammer 15 eindringende Druckgas bildet an der Seitenwand ein Kissen, auf dem der Kolben 16, dessen Durchmesser geringfügig kleiner als der freie Durchmesser der Pumpkammer 15 ist, im wesentlichen reibungsfrei gleitet.The pumping chamber 15 is annularly surrounded by a cavity 17 which communicates with the pumping chamber 15 through a plurality of openings 18 in the side wall thereof and which is fed via a passage 19 with compressed gas branched from a pressure port 20 of the pumping chamber. The pressure gas entering through the openings 18 in the pumping chamber 15 forms on the side wall a cushion on which the piston 16, whose diameter is slightly smaller than the free diameter of the pumping chamber 15, slides substantially without friction.

Die an der Wand der Pumpkammer 15 entlanggleitende Mantelfläche des Kolbens 16 ist mit einer DLC- (diamond-like carbon)-Schicht 21 überzogen. Die DLC-Schicht 21 kann insbesondere eine tetrahedrale Carbonschicht (ta-C) oder eine amorphe wasserstoffhaltige Carbonschicht (a-C:H) sein. Derartige Schichten stellen einen hochwirksamen Schutz vor Reibverschleiß bei extrem geringer Dicke dar. Das heißt, die Dicke der Schicht 21 kann deutlich geringer als das radiale Spiel zwischen Kolben und Zylinder sein, so dass die Schicht 21 auf einen fertigen, in seinen Abmessungen an die Pumpkammer 15 angepassten Kolben 16 aufgebracht werden kann, ohne dass eine nachträgliche Bearbeitung zur Maßanpassung erforderlich wird. Dies ermöglicht eine besonders kostengünstige Realisierung der Erfindung, da die Aufbringung der DLC-Schicht 21 auf den Kolben 16 einen einzelnen zusätzlichen Schritt bei der Fertigung der Verdichter darstellt, der in etablierte Fertigungsabläufe derartiger Verdichter leicht eingefügt werden kann, da er keinerlei Folgeanpassungen wie etwa Abmessungsänderungen an anderen Fertigungsschritten erfordert.The lateral surface of the piston 16 sliding along the wall of the pumping chamber 15 is coated with a DLC (diamond-like carbon) layer 21. In particular, the DLC layer 21 may be a tetrahedral carbon layer (ta-C) or an amorphous hydrogen-containing carbon layer (a-C: H). Such layers provide a highly effective protection against fretting at extremely small thickness. That is, the thickness of the layer 21 can be significantly less than the radial clearance between the piston and cylinder, so that the layer 21 on a finished, in its dimensions to the pumping chamber 15 adapted piston 16 can be applied without subsequent processing for customization is required. This allows for a particularly cost effective implementation of the invention since the application of the DLC layer 21 to the piston 16 constitutes a single additional step in the manufacture of the compressors which can be easily incorporated into established manufacturing operations of such compressors since it does not require any consequential adjustments such as dimensional changes at other manufacturing steps required.

Claims (3)

  1. Linear compressor with a cylinder (15), a piston (16) which is oscillatingly movable in the cylinder (15) in the longitudinal direction thereof and is borne by pressure fluid and a drive unit (1-14) driving the movement of the piston, wherein of mutually facing side surfaces of the piston (16) and the cylinder (15) at least one is provided with an abrasion-resistant slide layer (21), wherein the side surface provided with the slide layer (21) is the circumferential surface of the piston (16), characterised in that the slide layer (21) is a DLC layer and that the thickness of the slide layer (21) is significantly smaller than the radial play between piston (16) and cylinder (15).
  2. Linear compressor according to claim 1, characterised in that a sufficient play is present between the at least one side surface, which carries the slide layer (21), of the piston (16) or the cylinder (15) and the surface, which faces this, of the piston (16) or the cylinder (15) in order to enable movement of the piston (16) in longitudinal direction without mutual contact of the side surfaces.
  3. Linear compressor according to claim 1 or 2, characterised in that a branch (19) for pressure fluid for bearing the piston (16) is formed at a high-pressure connection (20) of the compressor.
EP05810968A 2004-12-23 2005-11-30 Linear compressor Not-in-force EP1831554B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004062303A DE102004062303A1 (en) 2004-12-23 2004-12-23 linear compressor
PCT/EP2005/056342 WO2006069881A1 (en) 2004-12-23 2005-11-30 Linear compressor

Publications (2)

Publication Number Publication Date
EP1831554A1 EP1831554A1 (en) 2007-09-12
EP1831554B1 true EP1831554B1 (en) 2012-01-11

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Application Number Title Priority Date Filing Date
EP05810968A Not-in-force EP1831554B1 (en) 2004-12-23 2005-11-30 Linear compressor

Country Status (7)

Country Link
EP (1) EP1831554B1 (en)
CN (1) CN100582483C (en)
AT (1) ATE541128T1 (en)
DE (1) DE102004062303A1 (en)
ES (1) ES2377221T3 (en)
RU (1) RU2007121773A (en)
WO (1) WO2006069881A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102006042018A1 (en) * 2006-09-07 2008-03-27 BSH Bosch und Siemens Hausgeräte GmbH Linear compressor with two compression chambers
DE102006052447A1 (en) * 2006-11-07 2008-05-08 BSH Bosch und Siemens Hausgeräte GmbH Linear compressor and gas pressure bearing for it
DE102007054334A1 (en) * 2007-11-14 2009-05-20 BSH Bosch und Siemens Hausgeräte GmbH Aerostatic bearing and process for its production
DE102007060831A1 (en) 2007-12-18 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Control unit for a refrigerating machine and household refrigerating appliance using the same
JP5944389B2 (en) 2010-08-27 2016-07-05 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Isolation of electric motor thermal energy
CN104251193A (en) 2013-06-28 2014-12-31 Lg电子株式会社 Linear compressor
CN203906210U (en) 2013-06-28 2014-10-29 Lg电子株式会社 Linear compressor
CN204126840U (en) 2013-06-28 2015-01-28 Lg电子株式会社 Linearkompressor
CN104251196B (en) 2013-06-28 2016-10-05 Lg电子株式会社 Linearkompressor
CN203835658U (en) 2013-06-28 2014-09-17 Lg电子株式会社 Linear compressor
CN104251197B (en) * 2013-06-28 2017-04-12 Lg电子株式会社 Linear compressor
DE102013213380A1 (en) * 2013-07-09 2015-01-15 BSH Bosch und Siemens Hausgeräte GmbH Linear compressor for a household appliance and household refrigeration appliance
DE102013221735A1 (en) 2013-10-25 2015-04-30 Schaeffler Technologies Gmbh & Co. Kg Piston, cylinder and linear compressor

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US5318412A (en) * 1992-04-03 1994-06-07 General Electric Company Flexible suspension for an oil free linear motor compressor
US6596032B2 (en) 1996-10-15 2003-07-22 Fujitsu Limited Document processing apparatus storing and modifying data using effect data
US6642377B1 (en) 1999-07-30 2003-11-04 Eisai Co., Ltd. Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalates
JP4345250B2 (en) * 2000-11-13 2009-10-14 富士電機システムズ株式会社 Compressor
NL1019858C2 (en) 2002-01-29 2003-09-08 Thales Nederland Bv The present invention relates generally to cryogenic coolers and in particular to the method for assembling the compressor of cryogenic coolers and to means for holding the piston used in such cryogenic coolers.

Also Published As

Publication number Publication date
CN100582483C (en) 2010-01-20
DE102004062303A1 (en) 2006-07-13
ES2377221T3 (en) 2012-03-23
WO2006069881A1 (en) 2006-07-06
EP1831554A1 (en) 2007-09-12
CN101133247A (en) 2008-02-27
ATE541128T1 (en) 2012-01-15
RU2007121773A (en) 2009-01-27

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