EP1991784B1 - Compresseur linéaire pourvu d'un ressort renforcé par des fibres de carbone - Google Patents

Compresseur linéaire pourvu d'un ressort renforcé par des fibres de carbone Download PDF

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Publication number
EP1991784B1
EP1991784B1 EP07712086A EP07712086A EP1991784B1 EP 1991784 B1 EP1991784 B1 EP 1991784B1 EP 07712086 A EP07712086 A EP 07712086A EP 07712086 A EP07712086 A EP 07712086A EP 1991784 B1 EP1991784 B1 EP 1991784B1
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EP
European Patent Office
Prior art keywords
compressor
linear compressor
piston
resilient element
compressor piston
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
EP07712086A
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German (de)
English (en)
Other versions
EP1991784A1 (fr
Inventor
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.)
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Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1991784A1 publication Critical patent/EP1991784A1/fr
Application granted granted Critical
Publication of EP1991784B1 publication Critical patent/EP1991784B1/fr
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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods
    • F04B53/145—Rod shock absorber
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods
    • F04B53/146—Piston-rod guiding arrangements

Definitions

  • the invention relates to a linear compressor comprising a piston housing and a compressor piston reciprocable therein along an axis, comprising means for guiding the compressor piston in a direction transverse to the axis and means for temporarily storing the kinetic energy of the reciprocating compressor piston; a refrigerator, in particular a refrigerator and / or freezer or air conditioning; and a method of cooling goods and a method of compressing a fluid.
  • the compressor piston reciprocating along an axis between first and second reverse points must be supported in a direction transverse to the axis.
  • the kinetic energy of the reciprocating compressor piston at the reversal points i. at the points at which reverses the direction of movement of the compressor piston, are temporarily stored in order to allow the least loss possible reversal of the direction of movement of the compressor piston.
  • the diaphragm springs are designed so thin and soft that the springs in the sum of their transverse stiffness can absorb the vertical forces arising perpendicular to the vibration direction of the overall system with sufficient certainty.
  • To achieve optimal longitudinal stiffness are deranssenen known in which diaphragm springs are supported by one or more coil springs or coil spring assemblies.
  • the publication US 200210164255 A1 shows a diaphragm pump comprising a membrane which hermetically seals a compressor chamber.
  • the membrane is actuated by means of a piston such that the volume of the compressor chamber changes depending on the membrane position.
  • the linear compressor comprises a piston housing and a compressor piston reciprocable therein along an axis, comprising means for guiding the compressor piston in a direction transverse to the axis and a means for temporarily storing the kinetic energy of the reciprocating compressor piston, the guide means and / or the means for temporary storage comprises a composite elastic element.
  • the structure of the linear compressor can be significantly simplified and the operation of the linear compressor can be made more reliable, energy-efficient and efficient.
  • the compressor piston can be oil-free, for example by means of a gas pressure bearing, be stored in the piston housing.
  • the means for guiding the compressor piston is guided in a direction transverse to the axis in the housing such that the friction between the compressor piston and the piston housing is as small as possible to have low wear of the compressor piston and the piston housing.
  • the means for guiding the compressor piston guides the compressor piston in a radial direction and prevents the compressor piston from tilting in the piston housing. Excessive rubbing of the compressor piston on the housing walls or uncontrolled striking is thus prevented.
  • the kinetic energy of the reciprocating parts located in the linear compressor, in particular of the compressor piston interim recorded, the moving parts braked during their forward movement just before a turning point and during their To be accelerated shortly after the reversal point.
  • the buffering means is capable of accommodating at least the kinetic energy of the moving parts which can accommodate the moving parts in a reciprocating motion.
  • the kinetic energy over a distance of at least 5%, preferably at least 10%, for example, over a distance of 30%, the entire stroke of the compressor piston in potential energy, such as by compression of a spring implemented.
  • the means for temporary storage thus forms part of a vibratory system.
  • the oscillatory system can be considered approximately as a harmonic oscillator, with which an oscillatory compression process can be performed.
  • at least 85%, in particular at least 95%, preferably at least 98%, particularly preferably substantially 100%, of the kinetic energy of the compressor piston can be picked up before a reversal point and subsequently returned to the compressor piston.
  • the means for temporarily storing the kinetic energy is formed by an elastic element, in particular a spring, preferably a diaphragm spring, made of composite material.
  • an elastic element in particular a spring, preferably a diaphragm spring, made of composite material.
  • a composite is a construction material consisting of 2 or more different materials, e.g. As fibers, plastic, metal, ceramic. At least one component, for example fibers, is embedded in the basic structure, a so-called matrix.
  • CFRP carbon fiber reinforced plastics
  • GfK glass fiber reinforced plastic
  • TiGr composite d. H. a compound of titanium, graphite and epoxy, and others are used.
  • a spring constant of the elastic element can be specified precisely.
  • the spring properties can be positively, in particular direction-dependent, influenced.
  • the ratio of the axial to transverse stiffness can be specified and tailored.
  • the greatest possible transverse stiffnesses are sought in order to bring about as low a design as possible movement of the moving parts, in particular of the compressor piston in a direction transverse to the axis.
  • the axial stiffness of the elastic element along the axis is to be dimensioned so that the kinetic energy of the moving parts can be completely absorbed.
  • the ratio of the axial to transverse stiffness is in particular in a range of 1:20 to 1: 200, in particular in a range of 1:40 to 1: 100.
  • the spring element which combines the properties of all the different spring elements of a linear compressor in itself.
  • the spring element can have both the function of a lateral guidance of the moving parts in the linear compressor and the function of temporarily storing the kinetic energy during a movement direction reversal.
  • the structure of the linear compressor is significantly simplified and it will be the number of parts, the costs and assembly costs are considerably reduced.
  • the external dimensions and the weight are reduced considerably.
  • the elastic element is advantageously fiber-reinforced, in particular carbon fibers, glass fibers and / or aramid fibers can be used.
  • Aramid fibers sold under the brand name Kevlar are fibers of aromatic polyamides, with a distinction between meta-aramids and para-aramids.
  • aramids or aromatic polyamides are not referred polyamides having aromatic groups in the main chain per se, but, according to a definition of the US Federal Trade Commission, only those long-chain synthetic polyamides in which at least 85% of the amide groups directly to 2 aromatic Rings are tied.
  • polyphenylene terephthalamides can be used.
  • the elastic element may further comprise a plastic, in particular a polymer, such as. As a resin or epoxy resin included.
  • the elastic element is advantageously adapted to store and release the kinetic energy of the reciprocating compressor piston.
  • the elastic element can absorb the kinetic energy of the reciprocating parts substantially completely, but it is also possible to make the capacity of the spring smaller and a part of the kinetic energy with the aid of a compressor piston associated with the help another elastic element or with the help of a drive.
  • part of the kinetic energy of the compressor piston may be electrically, e.g. be cached by means of a capacitor and / or a coil.
  • the elastic element emits a large part of the energy stored by it, in particular at least 80%, in particular at least 90%, preferably at least 98%, again.
  • an improved efficiency of the linear compressor is achieved.
  • the compressor piston is guided by the elastic element, in particular by the spring, in a direction transverse to the axis.
  • the elastic element fulfills two functions, namely on the one hand causes a guide in a radial direction, on the other hand forms an energy storage.
  • the means for guiding the compressor piston in a direction transverse to the axis and the means for temporarily storing the kinetic energy of the reciprocating compressor piston are thus realized with the same component.
  • the construction of the linear compressor is considerably simplified.
  • the mass of the reciprocating compressor piston may be between 20 and 200 g, in particular between 40 and 60 g.
  • the compressor piston is operated in the piston housing at a frequency in the range of 20 Hz to 200 Hz, in particular between 40 Hz and 60 Hz.
  • the frequency of the reciprocating motion is selected according to the resonance maximum occurring during operation of the linear compressor.
  • the moving parts and the means for intermediate storage form a vibration system which is coupled to the fluid and which has natural frequencies with corresponding resonance curves.
  • the operating frequency of the linear compressor is advantageously close to a resonance frequency. In such a resonance, the efficiency of the linear compressor is particularly high.
  • the compressor piston can be guided in the piston housing by means of a housing wall having at least one opening and a fluid, in particular a coolant, flowing through the opening. By the flowing gaseous fluid, a gas cushion between the piston housing and the housing wall is created, which allows a contactless guidance of the compressor piston in the piston housing.
  • the principle of gas pressure storage can also be applied to liquid fluids.
  • the elastic element has a spring constant in the range of 2000 kg / s 2 to 20000 kg / s 2 , in particular in the range of 3000 kg / s 2 to 6000 kg / s 2 .
  • Such spring constants are advantageous for linear compressors, which are to be used in refrigerators and / or freezers or in an air conditioner, in particular in an air conditioning system for motor vehicles.
  • the ratio of the axial to the transverse stiffness of the elastic element is at least 1:20, in particular at least 1:50, preferably at least 1: 100.
  • the elastic element is very soft in a direction parallel to the axis, so that the compressor piston has a stroke over a distance in the range of 5 mm to 50 mm, in particular in the range from 10 mm to 30 mm, can perform. Due to the high transverse rigidity of the element, the lateral movement of the compressor piston in a direction transverse to the axis is severely restricted and is in particular less than 0.2 mm, in particular less than 0.1 mm, preferably less than 0.05 mm. As a result, a precise lateral guidance of the compressor piston is realized by which the friction between the compressor piston and the piston housing sufficiently limited, so that excessive wear of the linear compressor is avoided.
  • the elastic element forms both the guide means and the intermediate storage means.
  • the elastic element thus has a dual function, which is advantageous against the background of the simplest possible construction of the linear compressor.
  • the refrigerator according to the invention in particular a refrigerator and / or freezer or an air conditioner, in particular an air conditioning system for motor vehicles, comprises the linear compressor according to the invention. Due to the simple construction of the linear compressor according to the invention, the refrigeration device can be made simpler and cheaper. By using a composite material, the structure of the linear compressor and thus also of the refrigeration device can be easily structured and the refrigeration device can be operated reliably, energy-saving and efficient.
  • the inventive method for cooling goods uses the refrigeration device according to the invention and / or the linear compressor according to the invention and the inventive method for compressing a fluid uses the linear compressor according to the invention.
  • the refrigerator according to the invention and / or the linear compressor according to the invention a particularly reliable, energy-saving and rapid cooling of goods or compressing fluids is possible.
  • Fig. 1 shows a known linear compressor 1 in a perspective view with a drive 13 which is connected via a coupling rod 14 with a piston housing 2 of the linear compressor 1.
  • a compressor piston (not shown) moves back and forth.
  • the kinetic energy of the compressor piston or the moving in the reciprocating motion parts by means of cylinder springs 16 and diaphragm springs 15 is added.
  • the compressor piston moves along an axis 3 back and forth.
  • Fig. 2 shows a linear compressor 1 according to the invention in a perspective view with a drive 13, which via a coupling rod 14 with a compressor piston 4 (see Fig. 4 ) connected is.
  • Piston 4 is guided both in a direction transverse to an axis 3 and decelerated in a direction along the axis 3 by means of an elastic element 7, which is formed as a carbon fiber reinforced springs 8.
  • the spring 8 takes on the kinetic energy of the compressor piston 4 in the meantime and returns them to the reversal of the direction of movement back to this.
  • Fig. 3 shows a cooling device according to the invention 17, which is designed as a refrigerator and the linear compressor 1 according to the invention to cool goods 18 as quickly as possible, energy-saving and reliable and to keep cool.
  • Fig. 4 shows a sectional view of another linear sealer 1 according to the invention, in which a compressor piston 4 along an axis 3 by means of a drive 13 is moved back and forth.
  • the compressor piston 4 is supported by means of a housing wall 11 having openings 10 in the piston housing 2, wherein a gaseous fluid 21 is pressed from a supply line 20 through the openings 10 to the compressor piston 4, so that the compressor piston 4 by the gas cushion 19 produced in this case the housing wall 11 is mounted without contact.
  • the compressor piston 4 is also guided by a high transverse stiffness of the elastic element 7 in a direction 22 transverse to the axis 3.
  • the elastic member 7 is a spring reinforced with carbon fibers.
  • the spring 8 which is attached with its ends on the one hand to the piston housing 2 on the other hand to a drive 13 with the compressor piston 4 connecting coupling rod 14, takes the kinetic energy of the compressor piston 4 substantially completely, so that the compressor piston 4 its direction of movement along the axis. 3 changes.
  • the spring 8 is also used to support the compressor piston 4 in a direction transverse to the axis 3.
  • the spring 8 has a dual function and causes on the one hand a lateral mounting of the compressor piston 4, on the other hand, an intermediate storage of the kinetic energy of the compressor piston 4 in the form of potential energy to facilitate a reversal of direction of movement. By this dual function accounts for more guide elements, such. B. a second diaphragm spring, the cylinder springs or other couplings.
  • the invention relates to a linear compressor 1 comprising a piston housing 2 and a compressor piston 4 reciprocating along an axis 3, comprising a means 5 for guiding the compressor piston 4 in a direction transverse to the axis 3 and a means 6 for temporarily storing the kinetic energy of the back and forth movable compressor piston 4 for a reversal of the direction of movement of the compressor piston 4, wherein the means 5 for guiding and / or the means 6 for buffering a composite elastic element 7, which is in particular formed by a carbon fiber reinforced spring 8; a refrigerator 17 such.
  • a refrigerator comprising the linear compressor 1 according to the invention; and a method for compressing a fluid and a method for cooling goods 18.
  • the invention enables the construction of a simply structured linear compressor 1 or refrigeration device 17 and provides energy-saving, efficient and reliable method for cooling goods 18 and for compressing a fluid ready.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

Compresseur linéaire (1) qui comporte un carter de piston (2), un piston compresseur (4) pouvant effectuer un mouvement de va-et-vient dans le carter le long d'un axe (3), un moyen (5) destiné à guider le piston compresseur (4) dans une direction transversale par rapport à l'axe (3) et un moyen (6) destiné à accumuler de manière intermédiaire l'énergie cinétique du piston compresseur (4) pouvant effectuer un mouvement de va-et-vient pour une inversion de la direction de mouvement dudit piston compresseur (4). Le moyen de guidage (5) et / ou le moyen d'accumulation intermédiaire (6) comporte un élément élastique (7) en matière composite se présentant en particulier sous forme d'un ressort (8) renforcé par des fibres de carbone. La présente invention concerne en outre un appareil de réfrigération (17), tel qu'un réfrigérateur, comportant ledit compresseur linéaire (1), ainsi qu'un procédé de compression d'un fluide et un procédé de réfrigération de produits (18). La présente invention permet la construction d'un compresseur linéaire (1) ou plus précisément d'un appareil de réfrigération (17) de structure simple et présente des procédés économiques en énergie, efficaces et fiables de réfrigération de produits (18) ou plus précisément de compression d'un fluide.

Claims (15)

  1. Compresseur linéaire (1) comprenant un carter de piston (2) et un piston compresseur (4) pouvant effectuer un mouvement de va-et-vient dans le carter le long d'un axe (3), comprenant un moyen (5) de guidage du piston compresseur (4) dans une direction perpendiculaire à l'axe (3) et un moyen (6) d'accumulation intermédiaire de l'énergie cinétique du piston compresseur (4) pouvant effectuer un mouvement de va-et-vient, caractérisé en ce que le moyen (5) de guidage et/ou le moyen (6) d'accumulation intermédiaire est un élément élastique (7) en matériau composite.
  2. Compresseur linéaire selon la revendication 1, caractérisé en ce que l'élément élastique (7) est un ressort (8), en particulier un ressort à diaphragme.
  3. Compresseur linéaire (1) selon la revendication 1 ou 2, caractérisé en ce que l'élément élastique (7) est renforcé par des fibres.
  4. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (7) comporte des fibres de carbone.
  5. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (7) comporte des fibres de verre.
  6. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (7) comporte des fibres aramides.
  7. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (7) contient une matière plastique, en particulier un polymère.
  8. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (7) est apte à accumuler et à restituer l'énergie cinétique du piston compresseur (4) pouvant effectuer un mouvement de va-et-vient.
  9. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que le piston compresseur (4) peut être guidé par l'élément élastique (7), en particulier le ressort (8), dans une direction (9) perpendiculaire à l'axe (3).
  10. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que le piston compresseur (4) est guidé dans le carter de piston (2) à l'aide d'une paroi de carter (11) comportant des ouvertures (10) et d'un fluide gazeux (12) traversant les ouvertures (10), en particulier un réfrigérant.
  11. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (7) a une constante d'élasticité comprise entre 2000 kg/s2 et 20000 kg/s2, en particulier comprise entre 3000 kg/s2 et 6000 kg/s2.
  12. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que le rapport entre la rigidité transversale et la rigidité axiale de l'élément élastique (7) est au moins de 1:20, en particulier au moins de 1:50, de préférence au moins de 1:100.
  13. Compresseur linéaire (1) selon l'une des revendications précédentes, caractérisé en ce que le moyen (5) de guidage et le moyen (6) d'accumulation intermédiaire sont formés par l'élément élastique (7).
  14. Appareil de réfrigération (17), en particulier un réfrigérateur et/ou congélateur ou un système de climatisation, comprenant un compresseur linéaire (1) selon l'une des revendications 1 à 13.
  15. Procédé de réfrigération de produits (18) à l'aide d'un appareil de réfrigération (20) selon la revendication 14 et/ou de compression d'un fluide (21) à l'aide d'un compresseur linaire (1) selon l'une des revendications 1 à 13.
EP07712086A 2006-02-28 2007-01-23 Compresseur linéaire pourvu d'un ressort renforcé par des fibres de carbone Not-in-force EP1991784B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006009229A DE102006009229A1 (de) 2006-02-28 2006-02-28 Linearverdichter mit carbonfaserverstärkter Feder
PCT/EP2007/050632 WO2007098997A1 (fr) 2006-02-28 2007-01-23 Compresseur linéaire pourvu d'un ressort renforcé par des fibres de carbone

Publications (2)

Publication Number Publication Date
EP1991784A1 EP1991784A1 (fr) 2008-11-19
EP1991784B1 true EP1991784B1 (fr) 2012-05-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07712086A Not-in-force EP1991784B1 (fr) 2006-02-28 2007-01-23 Compresseur linéaire pourvu d'un ressort renforcé par des fibres de carbone

Country Status (7)

Country Link
US (1) US20100223936A1 (fr)
EP (1) EP1991784B1 (fr)
CN (1) CN101389860A (fr)
DE (1) DE102006009229A1 (fr)
ES (1) ES2386204T3 (fr)
RU (1) RU2431060C2 (fr)
WO (1) WO2007098997A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI1101436A2 (pt) * 2011-04-04 2013-06-11 Whirlpool Sa compressor alternativo acionado por motor linear de imç permanente operando em alta frequÊncia
CN107202137A (zh) * 2017-07-19 2017-09-26 王萌 一种同步带抗振张紧装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083939C (zh) * 1996-07-09 2002-05-01 三洋电机株式会社 线性压缩机
JPH10332214A (ja) * 1997-05-29 1998-12-15 Aisin Seiki Co Ltd リニアコンプレッサ
US6084320A (en) * 1998-04-20 2000-07-04 Matsushita Refrigeration Company Structure of linear compressor
JP3512371B2 (ja) * 2000-06-19 2004-03-29 松下電器産業株式会社 リニア圧縮機
JP4366849B2 (ja) * 2000-08-31 2009-11-18 株式会社デンソー リニア圧縮機
TW504546B (en) 2000-10-17 2002-10-01 Fisher & Amp Paykel Ltd A linear compressor
US6514047B2 (en) 2001-05-04 2003-02-04 Macrosonix Corporation Linear resonance pump and methods for compressing fluid
JP4149147B2 (ja) * 2001-07-19 2008-09-10 松下電器産業株式会社 リニア圧縮機
KR100477111B1 (ko) * 2002-02-01 2005-03-17 삼성전자주식회사 리니어 압축기
DE10230693A1 (de) * 2002-07-06 2004-01-22 BSH Bosch und Siemens Hausgeräte GmbH Kühl-oder Gefriergerät
AU2003301464A1 (en) * 2002-10-16 2004-05-04 Matsushita Refrigeration Company Linear motor and liner compressor using the same
NZ526361A (en) * 2003-05-30 2006-02-24 Fisher & Paykel Appliances Ltd Compressor improvements
KR100529934B1 (ko) * 2004-01-06 2005-11-22 엘지전자 주식회사 외부 방진 구조를 갖는 리니어 압축기
JP2006025546A (ja) * 2004-07-08 2006-01-26 Nidec Sankyo Corp アクチュエータ、およびポンプ装置

Also Published As

Publication number Publication date
RU2008138132A (ru) 2010-04-10
EP1991784A1 (fr) 2008-11-19
RU2431060C2 (ru) 2011-10-10
CN101389860A (zh) 2009-03-18
DE102006009229A1 (de) 2007-08-30
US20100223936A1 (en) 2010-09-09
ES2386204T3 (es) 2012-08-13
WO2007098997A1 (fr) 2007-09-07

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