EP2253846A2 - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
EP2253846A2
EP2253846A2 EP10004831A EP10004831A EP2253846A2 EP 2253846 A2 EP2253846 A2 EP 2253846A2 EP 10004831 A EP10004831 A EP 10004831A EP 10004831 A EP10004831 A EP 10004831A EP 2253846 A2 EP2253846 A2 EP 2253846A2
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EP
European Patent Office
Prior art keywords
piston
ring
cylinder
sealing
sliding seal
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.)
Withdrawn
Application number
EP10004831A
Other languages
German (de)
French (fr)
Other versions
EP2253846A3 (en
Inventor
Peter Rausch
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.)
BORSIG COMPRESSOR PARTS GmbH
Original Assignee
Compart Compressor Technology GmbH
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Filing date
Publication date
Application filed by Compart Compressor Technology GmbH filed Critical Compart Compressor Technology GmbH
Publication of EP2253846A2 publication Critical patent/EP2253846A2/en
Publication of EP2253846A3 publication Critical patent/EP2253846A3/en
Withdrawn legal-status Critical Current

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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
    • 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
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • F04B39/042—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston
    • 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
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • F04B39/045—Labyrinth-sealing between piston and cylinder
    • 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
    • F04B53/008—Spacing or clearance between cylinder and piston
    • 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
    • F04B53/02—Packing the free space between cylinders and pistons
    • 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
    • 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
    • F04B53/143—Sealing provided on the piston
    • 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
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders

Definitions

  • the invention relates to a linear compressor with a single-acting and / or double-acting cylinder according to the preamble of claim 1.
  • a reciprocating compressor in which the piston is driven by a linear movement via a linear drive by means of a drive motor.
  • a drive motor of the linear actuator By the drive motor of the linear actuator is actuated and a piston rod reciprocated with the piston in the cylinder.
  • a pump having at least one conveyor assembly comprising a plunger axially guided in a cylinder.
  • the plunger with its drive remote end varies the volume in a pressure chamber.
  • the pressure chamber is sealed to the suction side on the one hand via the plunger.
  • the plunger is provided with at least one circumferential recess in which a seal is arranged, which is designed as a sliding seal.
  • the Gleitdichtring can be biased by means of an elastically deformable, arranged between the bottom of the peripheral recess and the Gleitdichtring O-ring in the direction of the cylinder inner wall.
  • the sealing arrangement consists of an L-shaped annular sealing element, wherein one leg of the L-shaped sealing element is fixedly mounted for static sealing on the piston, while the other free leg of the sealing element bears dynamically sealingly against the cylinder inner wall.
  • Linear compressors are piston compressors in which the pistons are driven by linear drives, eg. B. ball or roller screws, are operated.
  • piston and piston rod seals are made of non-metallic, single or multiple cut, one or more parts sealing elements used. ( MJ Frenkel "Piston Compressor” 1969, VEB Verlagtechnik Berlin, Chapter 8.4 "Piston Rings” and 8.7 “Glands)
  • the invention has for its object to improve a linear compressor so that there are essentially no restrictions on the flow rate and that thermal difficulties are substantially avoided.
  • sealing elements for the sealing of the piston against the cylinder in at least one in the surface region of the piston radially mounted circumferential groove at least one sliding seal and a To arrange O-ring. Furthermore, it has been found that it is advantageous to arrange at least one sliding seal ring and one O-ring as sealing elements for sealing the cylinder against the piston rod in at least one circumferential annular groove radially disposed in the inner surface region of the piston part of the cylinder.
  • the single FIGURE schematically shows partially a double-acting linear compressor with the inventive arrangement of sealing elements between the piston and cylinder and cylinder and piston rod.
  • a double-acting linear compressor is shown schematically, wherein sealing elements between a cylinder 01 and a piston 02 are arranged.
  • the sealing elements are housed in a radially in the surface region of the piston 02 mounted circumferential first annular groove 08.
  • the first O-ring 04 is disposed in the inner part of the first annular groove 08, while the associated first Gleitdichtring 05 on the first O-ring 04 in the outer part of the first annular groove 08 is attached.
  • sealing elements between a piston rod 03 and the cylinder 01 are attached.
  • the sealing elements consist of a second O-ring 07 and a second Gleitdichtring 06.
  • the second O-ring 07 is disposed in a radially in the inner surface region of the piston 02 remote from the cylinder 01 radially mounted second annular groove 09, while the second sliding seal 06 is mounted on the second O-ring 07 in the outer part of the second annular groove 09.
  • the particular arrangement of the sealing elements has the great advantage that the first Gleitdichtring 05 is biased by the first O-ring 04 against the cylinder inner wall and the second sliding seal 06 by the second O-ring 07 against the piston rod.
  • the advantageous arrangement of the sealing elements secure sealing between the piston 02 and the cylinder 01 and between the cylinder 01 and the piston rod 03 and thus achieved against the atmosphere, so that leakage currents are substantially prevented and thus a reliable flow rate is achieved. Furthermore, thermal difficulties in the advantageous arrangement of the sealing elements are excluded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The compressor has a piston (2) guided into a cylinder (1) and attached at a piston rod (3). A sliding seal ring (5) and an O-ring (4) are arranged as sealing elements in a circular groove (8) that is radially attached in a surface area of the piston, for sealing of the piston against the cylinder. Another sliding seal ring (6) and another O-ring (7) are arranged as sealing elements in another circular groove (9) for sealing of the cylinder against the rod. The latter groove is radially attached in an inner surface area of a part of the cylinder, where the part is turned away the piston.

Description

Die Erfindung betrifft einen Linearverdichter mit einem einfach- und/oder doppeltwirkenden Zylinder nach dem Oberbegriff des Anspruchs 1.The invention relates to a linear compressor with a single-acting and / or double-acting cylinder according to the preamble of claim 1.

Aus DE 10 2004 052 168 A1 ist ein Kolbenverdichter bekannt, bei dem der Kolben durch eine Linearbewegung über einen Linearantrieb mit Hilfe eines Antriebsmotors angetrieben wird. Durch den Antriebsmotor wird der Linearantrieb betätigt und eine Kolbenstange mit dem Kolben im Zylinder hin- und herbewegt.Out DE 10 2004 052 168 A1 a reciprocating compressor is known in which the piston is driven by a linear movement via a linear drive by means of a drive motor. By the drive motor of the linear actuator is actuated and a piston rod reciprocated with the piston in the cylinder.

Aus der DE 199 18 394 A1 ist eine Pumpe mit wenigstens einer Förderanordnung bekannt, die einen in einem Zylinder axial geführten Plungerkolben umfasst. Dabei variiert der Plungerkolben mit seinem antriebsfernen Ende das Volumen in einer Druckkammer. Die Druckkammer ist zur Saugseite zum einen über den Plungerkolben abgedichtet. Der Plungerkolben ist mit wenigstens einer Umfangsausnehmung versehen, in der eine Dichtung angeordnet ist, die als Gleitdichtring ausgebildet ist. Der Gleitdichtring kann mittels eines elastisch verformbaren, zwischen dem Boden der Umfangsausnehmung und dem Gleitdichtring angeordneten O-Rings in Richtung der Zylinderinnenwand vorgespannt sein.From the DE 199 18 394 A1 For example, there is known a pump having at least one conveyor assembly comprising a plunger axially guided in a cylinder. In this case, the plunger with its drive remote end varies the volume in a pressure chamber. The pressure chamber is sealed to the suction side on the one hand via the plunger. The plunger is provided with at least one circumferential recess in which a seal is arranged, which is designed as a sliding seal. The Gleitdichtring can be biased by means of an elastically deformable, arranged between the bottom of the peripheral recess and the Gleitdichtring O-ring in the direction of the cylinder inner wall.

Weiterhin ist aus der DE 103 37 298 A1 eine Dichtungsanordnung für ein Zylinder-Kolben-System für Vakuumpumpen zum Abdichten zwischen einer Zylinderinnenwand und einem in dem Zylinder verschiebbaren Kolben bekannt. Dabei besteht die Dichtungsanordnung aus einem L-förmig ausgebildeten ringförmigen Dichtungselement, wobei ein Schenkel des L-förmigen Dichtungselements zur statischen Abdichtung am Kolben fixiert gelagert ist, während der andere freie Schenkel des Dichtungselements dynamisch abdichtend an der Zylinderinnenwand anliegt.Furthermore, from the DE 103 37 298 A1 a seal assembly for a cylinder-piston system for vacuum pumps for sealing between a cylinder inner wall and a piston displaceable in the cylinder known. In this case, the sealing arrangement consists of an L-shaped annular sealing element, wherein one leg of the L-shaped sealing element is fixedly mounted for static sealing on the piston, while the other free leg of the sealing element bears dynamically sealingly against the cylinder inner wall.

Linearverdichter sind Kolbenkompressoren, bei denen die Kolben durch Linearantriebe, z. B. Kugel- oder Rollengewindetriebe, betätigt werden.Linear compressors are piston compressors in which the pistons are driven by linear drives, eg. B. ball or roller screws, are operated.

Bei ungeschmierten Verdichtern werden Kolben- und Kolbenstangendichtungen aus nichtmetallischen, ein- oder mehrfach geschnittenen, ein- oder mehrteiligen Dichtelementen verwendet. ( M. J. Frenkel "Kolbenverdichter" 1969, VEB Verlag Technik Berlin, Kapitel 8.4 "Kolbenringe" und 8.7 "Stopfbuchsen)For unlubricated compressors piston and piston rod seals are made of non-metallic, single or multiple cut, one or more parts sealing elements used. ( MJ Frenkel "Piston Compressor" 1969, VEB Verlag Technik Berlin, Chapter 8.4 "Piston Rings" and 8.7 "Glands)

Nachteilig bei solchen nichtmetallischen, ein- oder mehrfach geschnittenen, ein- oder mehrteiligen Dichtelementen sind die Leckverluste an den Stößen der geschnittenen Dichtelemente. Das führt letztendlich zu Einschränkungen der Fördermenge bei Verdichtern mit solchen Dichtelementen und zu thermischen Problemen.The disadvantage of such non-metallic, single or multiple cut, one- or multi-part sealing elements are the leakage losses at the joints of the cut sealing elements. This ultimately leads to restrictions in the flow rate in compressors with such sealing elements and thermal problems.

Der Erfindung liegt die Aufgabe zugrunde, einen Linearverdichter so zu verbessern, dass hinsichtlich der Fördermenge im wesentlichen keine Einschränkungen bestehen und dass thermische Schwierigkeiten im wesentlichen vermieden werden.The invention has for its object to improve a linear compressor so that there are essentially no restrictions on the flow rate and that thermal difficulties are substantially avoided.

Die Aufgabe wird erfindungsgemäß durch einen Linearverdichter mit den Merkmalen des Anspruchs 1 gelöst. Zweckmäßige Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved by a linear compressor with the features of claim 1. Advantageous embodiments of the invention are specified in the subclaims.

Als besonders vorteilig hat sich bei der Erfindung herausgestellt, als Dichtelemente für die Abdichtung des Kolbens gegen den Zylinder in mindestens einer im Oberflächenbereich des Kolbens radial angebrachten umlaufenden Ringnut mindestens einen Gleitdichtring und einen O-Ring anzuordnen. Weiterhin hat sich gezeigt, dass es vorteilhaft ist, als Dichtelemente für die Abdichtung des Zylinders gegen die Kolbenstange in mindestens einer im inneren Oberflächenbereich des dem Kolben abgewandten Teils des Zylinders radial angebrachten umlaufenden Ringnut mindestens einen Gleitdichtring und einen O-Ring anzuordnen.As a particularly advantageous has been found in the invention, as sealing elements for the sealing of the piston against the cylinder in at least one in the surface region of the piston radially mounted circumferential groove at least one sliding seal and a To arrange O-ring. Furthermore, it has been found that it is advantageous to arrange at least one sliding seal ring and one O-ring as sealing elements for sealing the cylinder against the piston rod in at least one circumferential annular groove radially disposed in the inner surface region of the piston part of the cylinder.

Weiter hat sich als vorteilhaft herausgestellt, den jeweiligen O-Ring im inneren Teil der jeweiligen umlaufenden Ringnut anzuordnen und den jeweiligen Gleitdichtring auf dem jeweiligen O-Ring im äußeren Teil der Ringnut anzubringen.Next has been found to be advantageous to arrange the respective O-ring in the inner part of the respective circumferential annular groove and to attach the respective Gleitdichtring on the respective O-ring in the outer part of the annular groove.

Durch eine solche vorteilhafte Anordnung ist der jeweilige Gleitdichtring durch den jeweiligen O-Ring gegen die Zylinderinnenwand bzw. die Kolbenstange vorgespannt.By such an advantageous arrangement of the respective Gleitdichtring is biased by the respective O-ring against the cylinder inner wall and the piston rod.

Weitere Vorteile und Merkmale der Erfindung sind in der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der beigefügten Zeichnung erläutert.Further advantages and features of the invention are explained in the following description of a preferred embodiment with reference to the accompanying drawings.

Die einzige Fig. zeigt schematisch teilweise einen doppeltwirkenden Linearverdichter mit der erfindungsgemäßen Anordnung von Dichtelementen zwischen Kolben und Zylinder sowie Zylinder und Kolbenstange.The single FIGURE schematically shows partially a double-acting linear compressor with the inventive arrangement of sealing elements between the piston and cylinder and cylinder and piston rod.

In der Fig. ist schematisch teilweise ein doppeltwirkender Linearverdichter dargestellt, wobei Dichtelemente zwischen einem Zylinder 01 und einem Kolben 02 angeordnet sind. Die Dichtelemente sind in einer im Oberflächenbereich des Kolbens 02 radial angebrachten umlaufenden ersten Ringnut 08 untergebracht. Dabei bestehen die Dichtelemente aus einem ersten O-Ring 04 und einem ersten Gleitdichtring 05. Der erste O-Ring 04 ist im inneren Teil der ersten Ringnut 08 angeordnet, während der zugehörige erste Gleitdichtring 05 auf dem ersten O-Ring 04 im äußeren Teil der ersten Ringnut 08 angebracht ist.In the figure, partially a double-acting linear compressor is shown schematically, wherein sealing elements between a cylinder 01 and a piston 02 are arranged. The sealing elements are housed in a radially in the surface region of the piston 02 mounted circumferential first annular groove 08. The first O-ring 04 is disposed in the inner part of the first annular groove 08, while the associated first Gleitdichtring 05 on the first O-ring 04 in the outer part of the first annular groove 08 is attached.

Weiterhin sind Dichtelemente zwischen einer Kolbenstange 03 und dem Zylinder 01 angebracht. Bei der Anordnung bestehen die Dichtelemente aus einem zweiten O-Ring 07 und einem zweiten Gleitdichtring 06. Der zweite O-Ring 07 ist in einer im inneren Oberflächenbereich des dem Kolben 02 abgewandten Teils des Zylinders 01 radial angebrachten umlaufenden zweiten Ringnut 09 angeordnet, während der zweite Gleitdichtring 06 auf dem zweiten O-Ring 07 im äußeren Teil der zweiten Ringnut 09 angebracht ist.Furthermore, sealing elements between a piston rod 03 and the cylinder 01 are attached. In the arrangement, the sealing elements consist of a second O-ring 07 and a second Gleitdichtring 06. The second O-ring 07 is disposed in a radially in the inner surface region of the piston 02 remote from the cylinder 01 radially mounted second annular groove 09, while the second sliding seal 06 is mounted on the second O-ring 07 in the outer part of the second annular groove 09.

Die besondere Anordnung der Dichtelemente hat den großen Vorteil, dass der erste Gleitdichtring 05 durch den ersten O-Ring 04 gegen die Zylinderinnenwand und der zweite Gleitdichtring 06 durch den zweiten O-Ring 07 gegen die Kolbenstange vorgespannt ist. Durch die vorteilhafte Anordnung der Dichtelemente wird eine sichere Abdichtung jeweils zwischen dem Kolben 02 und dem Zylinder 01 sowie zwischen dem Zylinder 01 und der Kolbenstange 03 und damit gegen die Atmosphäre erzielt, so dass Leckströme im wesentlichen verhindert werden und damit eine zuverlässige Fördermenge erreicht wird. Weiterhin sind thermische Schwierigkeiten bei der vorteilhaften Anordnung der Dichtelemente auszuschließen.The particular arrangement of the sealing elements has the great advantage that the first Gleitdichtring 05 is biased by the first O-ring 04 against the cylinder inner wall and the second sliding seal 06 by the second O-ring 07 against the piston rod. The advantageous arrangement of the sealing elements secure sealing between the piston 02 and the cylinder 01 and between the cylinder 01 and the piston rod 03 and thus achieved against the atmosphere, so that leakage currents are substantially prevented and thus a reliable flow rate is achieved. Furthermore, thermal difficulties in the advantageous arrangement of the sealing elements are excluded.

Claims (4)

Linearverdichter mit einem einfach- und/oder doppeltwirkenden Zylinder (01), in dem ein an einer Kolbenstange (03) angebrachter Kolben (02) geführt ist, wobei der Kolben (02) gegen den Zylinder (01) und der Zylinder (01) gegen die Kolbenstange (03) durch Dichtelemente abgedichtet sind, dadurch gekennzeichnet, dass als Dichtelemente für die Abdichtung des Kolbens (02) gegen den Zylinder (01) in mindestens einer im Oberflächenbereich des Kolbens (02) radial angebrachten umlaufenden ersten Ringnut (08) mindestens ein erster Gleitdichtring (05) und ein erster O-Ring (04) angeordnet sind und dass als Dichtelemente für die Abdichtung des Zylinders (01) gegen die Kolbenstange (03) in mindestens einer im inneren Oberflächenbereich des dem Kolben (02) abgewandten Teils des Zylinders (01) radial angebrachten umlaufenden zweiten Ringnut (09) mindestens ein zweiter Gleitdichtring (06) und ein zweiter O-Ring (07) angeordnet sind.Linear compressor with a single- and / or double-acting cylinder (01) in which a on a piston rod (03) mounted piston (02) is guided, wherein the piston (02) against the cylinder (01) and the cylinder (01) against the piston rod (03) are sealed by sealing elements, characterized in that as sealing elements for the sealing of the piston (02) against the cylinder (01) in at least one in the surface region of the piston (02) radially mounted circumferential first annular groove (08) at least one first sliding seal (05) and a first O-ring (04) are arranged and that as sealing elements for the sealing of the cylinder (01) against the piston rod (03) in at least one in the inner surface region of the piston (02) facing away from the part of the cylinder (01) radially mounted circumferential second annular groove (09) at least a second sliding seal (06) and a second O-ring (07) are arranged. Linearverdichter nach Anspruch 1, dadurch gekennzeichnet, dass der erste O-Ring (04) im inneren Teil der ersten Ringnut (08) angeordnet ist, während der erste Gleitdichtring (05) auf dem ersten O-Ring (04) im äußeren Teil der ersten Ringnut (08) angebracht ist.Linear compressor according to claim 1, characterized in that the first O-ring (04) in the inner part of the first annular groove (08) is arranged, while the first sliding seal (05) on the first O-ring (04) in the outer part of the first Ring groove (08) is mounted. Linearverdichter nach Anspruch 1, dadurch gekennzeichnet, dass der zweite O-Ring (07) im inneren Teil der zweiten Ringnut (09) angeordnet ist, während der zweite Gleitdichtring (06) auf dem zweiten O-Ring (07) im äußeren Teil der zweiten Ringnut (09) angebracht ist.Linear compressor according to claim 1, characterized in that the second O-ring (07) in the inner part of the second annular groove (09) is arranged, while the second sliding seal (06) on the second O-ring (07) in the outer part of the second Ring groove (09) is attached. Linearverdichter nach Anspruch 1, dadurch gekennzeichnet, dass der erste Gleitdichtring (05) durch den ersten O-Ring (04) gegen die Zylinderinnenwand und der zweite Gleitdichtring (06) durch den zweiten O-Ring (07) gegen die Kolbenstange (03) vorgespannt ist.Linear compressor according to claim 1, characterized in that the first sliding seal (05) by the first O-ring (04) against the cylinder inner wall and the second sliding seal (06) by the second O-ring (07) against the piston rod (03) is biased.
EP10004831A 2009-05-13 2010-05-07 Linear compressor Withdrawn EP2253846A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910021170 DE102009021170A1 (en) 2009-05-13 2009-05-13 Cylinder and piston rod seal of a linear compressor

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EP2253846A2 true EP2253846A2 (en) 2010-11-24
EP2253846A3 EP2253846A3 (en) 2013-03-06

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DE (1) DE102009021170A1 (en)
RU (1) RU2010119164A (en)

Cited By (1)

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CN106958736A (en) * 2017-05-10 2017-07-18 典辉商贸(上海)有限公司 A kind of lubrication oil supply system

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Publication number Priority date Publication date Assignee Title
CN102345596A (en) * 2011-09-29 2012-02-08 西安航空动力股份有限公司 Piston seal structure of Stirling engine booster pump

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DE19918394A1 (en) 1999-04-22 2000-10-26 Speck Kolbenpumpenfabrik Otto pump
DE10337298A1 (en) 2003-08-14 2005-03-03 Pfeiffer Vacuum Gmbh Sealing arrangement for a cylinder-piston system
DE102004052168A1 (en) 2004-10-27 2006-05-04 Compart Compressor Technology Gmbh & Co. Kg Reciprocating engine for compressing gas, has linear motor utilized as linear drive, where reciprocating engine is driven by linear drive and not by crank drive or fluid, and can be operated with or without lubrication

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