EP0066222A1 - Coupling installation on a compressor aggregate consisting of a radial piston compressor and a driving motor - Google Patents

Coupling installation on a compressor aggregate consisting of a radial piston compressor and a driving motor Download PDF

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Publication number
EP0066222A1
EP0066222A1 EP82104477A EP82104477A EP0066222A1 EP 0066222 A1 EP0066222 A1 EP 0066222A1 EP 82104477 A EP82104477 A EP 82104477A EP 82104477 A EP82104477 A EP 82104477A EP 0066222 A1 EP0066222 A1 EP 0066222A1
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EP
European Patent Office
Prior art keywords
cylinder block
rotor
compressor
drive motor
leaf springs
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.)
Granted
Application number
EP82104477A
Other languages
German (de)
French (fr)
Other versions
EP0066222B1 (en
Inventor
Siegfried Schönwald
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT82104477T priority Critical patent/ATE14914T1/en
Publication of EP0066222A1 publication Critical patent/EP0066222A1/en
Application granted granted Critical
Publication of EP0066222B1 publication Critical patent/EP0066222B1/en
Expired 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/0404—Details, component parts specially adapted for such pumps
    • F04B27/0442—Supporting and guiding means for the pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
    • F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
    • F01B13/062—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders cylinder block and actuating or actuated cam both rotating
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/06—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B27/0606—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders
    • F04B27/0612—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders rotary cylinder block
    • F04B27/0619—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders rotary cylinder block cylinder block and actuating cam rotating together

Definitions

  • the invention relates to a compressor assembly consisting of a radial piston compressor and a drive motor, in which the rotor of the drive motor is connected to the cylinder block of the radial piston compressor and is guided radially by the latter.
  • Such an assembly is known from DE-PS 27 10 734.
  • the cylinder block is rigidly connected to the runner's arms.
  • the rotor does not have its own axle bearing on this side, but is guided radially by the cylinder block.
  • misalignments occur between the rotor of the engine and the cylinder block.
  • Such misalignments lead to a tilting of the cylinder block when the cylinder block is rigidly connected to the arms of the rotor.
  • the bearings of the cylinder block are loaded unevenly.
  • the invention has for its object to provide a compressor assembly consisting of a radial piston compressor and a drive motor so that on the one hand tilting of the cylinder block due to misalignment between the rotor of the drive motor and the cylinder block avoided, but on the other hand the radial guidance of the motor rotor through the cylinder block is guaranteed.
  • the object is achieved according to the invention in that the rotor and the cylinder block are connected to one another via a cardan joint. Radial forces, such as the magnetic pull of the rotor transverse to the axis, and its torque can be practically rigid via such a joint be transmitted. However, it allows misalignment between the cylinder block and the rotor of the drive motor due to misalignment.
  • a structurally particularly simple embodiment of the clutch arrangement is obtained according to a further embodiment of the invention in that leaf springs are provided as a cardan joint approximately in the central plane of the cylinder block, with one end of the cylinder block and the other end of projections or arms of the Runners are attached, wherein one of the ends of the leaf springs is fixed against rotation.
  • leaf springs are very stiff in the radial and tangential directions, but relatively soft in the axial direction, so that they allow a misalignment between the coupled parts without any further.
  • the rigidity in the radial and tangential direction can be increased further in that the leaf springs are V-shaped and the one leg of each leaf spring is fastened at two spaced apart locations.
  • a cylinder block 2 1 with a fixed axis is designated, on which a cylinder block 2 is rotatably mounted.
  • the inner stand 3 of a drive motor designed as an external rotor motor is also arranged on the fixed axis 1.
  • the outer rotor 4 of the drive motor has axially projecting arms 5. Its lower end is radially and axially by a roller bearing, its upper end radially by the coupling the cylinder block 2 out. This ensures an even engine air gap.
  • V-shaped leaf springs 6 The coupling between the arms 5 and the cylinder block 2 takes place via V-shaped leaf springs 6.
  • the leaf springs 6 are stacked in several layers.
  • the leaf springs 6 are fastened to the cylinder block 2 at two spaced locations 7 and 8. These attachment points are located approximately in the central plane of the cylinder block 2.
  • the leaf springs 6 With their other leg, the leaf springs 6 are connected to the arms 5 of the external rotor 4.
  • they become very rigid in the radial and tangential directions, so that they can transmit high forces in these directions without the leaf springs 6 being deflected or displaced. A separate storage of this side of the motor rotor 4 on the axis 1 is therefore unnecessary.
  • connection of the outer rotor 4 to the cylinder block 2 is relatively soft, in particular in the case of a multilayer arrangement of the leaf springs 6, so that the cylinder block 2 can adjust itself accordingly to the outer rotor 4 in the event of misalignments without the engine air gap being changed.
  • Such a coupling arrangement is particularly advantageous if, when the cylinder block 2 is mounted directly on the fixed axis 1, the gap between the cylinder block 2 and the fixed axis 1 has a decreasing cross-section in the direction from the suction slot to the pressure slot, to one from the suction slot Pressure slot to receive increasing oil pressure in the gap in accordance with the compression pressure. Due to the elasticity of the leaf springs 6 in the axial direction, the cylinder block 2 can always adjust so that ke . occurs in tilting of the cylinder block with respect to the fixed axis 1. Such tilting would result in an uneven gap in the axial direction which could not be adequately sealed by the oil introduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Reciprocating Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

A coupling arrangement for coupling a radial piston compressor to an external rotor drive motor is disclosed. The rotor of the drive motor is coupled to a rotatable cylinder block by arranging a plurality of leaf springs between the cylinder block and arms projecting from the rotor. The cylinder block rotatably mounted on the motor stator shaft supports the rotor at the compressor end of the drive motor. The leaf springs prevent canting of the cylinder blocks with respect to the rotor of the drive motor due to manufacturing and alignment errors.

Description

Die Erfindung bezieht sich auf ein aus einem Radialkolbenverdichter und einem Antriebsmotor bestehendes Verdichter- Aggregat, bei dem der Läufer des Antriebsmotors mit dem Zylinderblock des Radialkolbenverdichters verbunden und von diesem radial geführt ist.The invention relates to a compressor assembly consisting of a radial piston compressor and a drive motor, in which the rotor of the drive motor is connected to the cylinder block of the radial piston compressor and is guided radially by the latter.

Ein solches Aggregat ist durch die DE-PS 27 10 734 bekannt. Bei diesem Aggregat ist der Zylinderblock starr mit Armen des Läufers verbunden. Der Läufer hat auf dieser Seite kein eigenes Achslager, sondern wird radial von dem Zylinderblock geführt. Infolge von Fertigungstoleranzen treten Fluchtungsfehler zwischen dem Läufer des Motors und dem Zylinderblock auf. Solche Fluchtungsfehler führen bei einer starren Verbindung des Zylinderblockes mit den Armen des Läufers zu einem Verkanten des Zylinderblockes. Hierdurch werden die Lager des Zylinderblockes ungleich belastet.Such an assembly is known from DE-PS 27 10 734. In this unit, the cylinder block is rigidly connected to the runner's arms. The rotor does not have its own axle bearing on this side, but is guided radially by the cylinder block. As a result of manufacturing tolerances, misalignments occur between the rotor of the engine and the cylinder block. Such misalignments lead to a tilting of the cylinder block when the cylinder block is rigidly connected to the arms of the rotor. As a result, the bearings of the cylinder block are loaded unevenly.

Der Erfindung liegt die Aufgabe zugrunde, ein aus einem Radialkolbenverdichter und einem Antriebsmotor bestehendes Verdichter-Aggregat so auszubilden, daß einerseits ein Verkanten des Zylinderblockes infolge von Fluchtungsfehlern zwischen dem Läufer des Antriebsmotors und dem Zylinderblock vermieden, andererseits aber die radiale Führung des Motorläufers durch den Zylinderblock gewährleistet wird.The invention has for its object to provide a compressor assembly consisting of a radial piston compressor and a drive motor so that on the one hand tilting of the cylinder block due to misalignment between the rotor of the drive motor and the cylinder block avoided, but on the other hand the radial guidance of the motor rotor through the cylinder block is guaranteed.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß der Läufer und der Zylinderblock über ein kardanisches Gelenk miteinander verbunden sind. Ober ein solches Gelenk können radiale Kräfte, z.B. der magnetische Zug des Läufers quer zur Achse, sowie sein Drehmoment praktisch starr übertragen werden. Es läßt jedoch eine durch Fluchtungsfehler bedingte Schiefstellung zwischen dem Zylinderblock und dem Läufer des Antriebsmotors zu.The object is achieved according to the invention in that the rotor and the cylinder block are connected to one another via a cardan joint. Radial forces, such as the magnetic pull of the rotor transverse to the axis, and its torque can be practically rigid via such a joint be transmitted. However, it allows misalignment between the cylinder block and the rotor of the drive motor due to misalignment.

Eine konstruktiv besonders einfache Ausführungsform der Kupplungsanordnung ergibt sich nach einer weiteren Ausgestaltung der Erfindung dadurch, daß als kardanisches Gelenk etwa in der Mittelebene des Zylinderblockes liegende Blattfedern vorgesehen sind, die mit ihrem einen Ende an dem Zylinderblock und mit ihrem anderen Ende an Vorsprüngen oder Armen des Läufers befestigt sind, wobei eines der Enden der Blattfedern jeweils verdrehfest befestigt ist. Derartige Blattfedern sind in radialer und tangentialer Richtung sehr steif, dagegen in axialer Richtung verhältnismäßig weich, so daß sie eine Schiefstellung zwischen den miteinander gekuppelten Teilen ohne_weiteres zulassen. Die Steifigkeit in radialer und tangentialer Richtung kann noch dadurch erhöht werden, daß die Blattfedern V-förmig ausgebildet sind und der eine Schenkel jeder Blattfeder an zwei voneinander beabstandeten Stellen befestigt ist.A structurally particularly simple embodiment of the clutch arrangement is obtained according to a further embodiment of the invention in that leaf springs are provided as a cardan joint approximately in the central plane of the cylinder block, with one end of the cylinder block and the other end of projections or arms of the Runners are attached, wherein one of the ends of the leaf springs is fixed against rotation. Such leaf springs are very stiff in the radial and tangential directions, but relatively soft in the axial direction, so that they allow a misalignment between the coupled parts without any further. The rigidity in the radial and tangential direction can be increased further in that the leaf springs are V-shaped and the one leg of each leaf spring is fastened at two spaced apart locations.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird der Anmeldungsgegenstand nachfolgend näher beschrieben. Es zeigt

  • Fig. 1 eine Kupplungsanordnung in Draufsicht anhand einer halbseitigen Darstellung eines Zylinderblockes,
  • Fig. 2 eine Kupplüngsanordnung im Schnitt entlang der Linie II-II in Fig. 1.
The subject of the application is described in more detail below using an exemplary embodiment shown in the drawing. It shows
  • 1 is a top view of a clutch assembly using a half-sided representation of a cylinder block,
  • FIG. 2 shows a coupling arrangement in section along the line II-II in FIG. 1.

Mit 1 ist eine feststehende Achse bezeichnet, auf der ein Zylinderblock 2 drehbar gelagert ist. Auf der feststehenden Achse 1 ist ferner der Innenständer 3 eines als Außenläufermotor ausgebildeten Antriebsmotors angeordnet. Der Außenläufer 4 des Antriebsmotors weist axial vorstehende Arme 5 auf. Sein unteres Ende wird radial und axial von einem Wälzlager, sein oberes Ende über die Kupplung radial von dem Zylinderblock 2 geführt. Damit wird ein gleichmäßiger Motorluftspalt gewährleistet.1 with a fixed axis is designated, on which a cylinder block 2 is rotatably mounted. The inner stand 3 of a drive motor designed as an external rotor motor is also arranged on the fixed axis 1. The outer rotor 4 of the drive motor has axially projecting arms 5. Its lower end is radially and axially by a roller bearing, its upper end radially by the coupling the cylinder block 2 out. This ensures an even engine air gap.

Die Kupplung zwischen den Armen 5 und dem Zylinderblock 2 erfolgt über V-förmig ausgebildete Blattfedern 6. Wie aus Fig. 2 zu erkennen ist, sind die Blattfedern 6 in mehreren Lagen übereinandergeschichtet. Die Blattfedern 6 sind an zwei voneinander beabstandeten Stellen 7 und 8 an dem Zylinderblock 2 befestigt. Diese Befestigungsstellen liegen etwa in der Mittelebene des Zylinderblockes 2. Mit ihrem anderen Schenkel sind die Blattfedern 6 mit den Armen 5 des Außenläufers 4 verbunden. Infolge der Dreipunktbefestigung der Blattfedern 6 werden diese in radialer und tangentialer Richtung sehr starr, so daß sie in diesen Richtungen hohe Kräfte übertragen können, ohne daß eine Auslenkung oder Verstellung der Blattfedern 6 erfolgt. Eine eigene Lagerung dieser Seite des Motorläufers 4 auf der Achse 1 erübrigt sich also. In axialer Richtung ist dagegen die Verbindung des Außenläufers 4 mit dem Zylinderblock 2 insbesondere bei mehrlagiger Anordnung der Blattfedern 6 verhältnismäßig weich, so daß sich der Zylinderblock 2 gegenüber dem Außenläufer 4 bei Fluchtungsabweichungen entsprechend einstellen kann, ohne daß der Motorluftspalt verändert wird.The coupling between the arms 5 and the cylinder block 2 takes place via V-shaped leaf springs 6. As can be seen from FIG. 2, the leaf springs 6 are stacked in several layers. The leaf springs 6 are fastened to the cylinder block 2 at two spaced locations 7 and 8. These attachment points are located approximately in the central plane of the cylinder block 2. With their other leg, the leaf springs 6 are connected to the arms 5 of the external rotor 4. As a result of the three-point fastening of the leaf springs 6, they become very rigid in the radial and tangential directions, so that they can transmit high forces in these directions without the leaf springs 6 being deflected or displaced. A separate storage of this side of the motor rotor 4 on the axis 1 is therefore unnecessary. In the axial direction, on the other hand, the connection of the outer rotor 4 to the cylinder block 2 is relatively soft, in particular in the case of a multilayer arrangement of the leaf springs 6, so that the cylinder block 2 can adjust itself accordingly to the outer rotor 4 in the event of misalignments without the engine air gap being changed.

Eine solche Kupplungsanordnung ist besonders dann vorteilhaft, wenn bei einer direkten Lagerung des Zylinderblockes 2 auf der feststehenden Achse 1 der zwischen dem Zylinderblock 2 und der feststehenden Achse 1 bestehende Spalt in Richtung vom Saugschlitz zum Druckschlitz hin einen abnehmenden Querschnitt aufweist, um einen vom Saugschlitz zum Druckschlitz hin entsprechend dem Verdichtungsdruck ansteigenden Öldruck in dem Spalt zu erhalten. Infolge der Elastizität der Blattfedern 6 in axialer Richtung kann sich der Zylinderblock 2 stets so einstellen, daß ke.in Verkanten des Zylinderblockes gegenüber der feststehenden Achse 1 auftritt. Durch ein solches Verkanten würde sich in axialer Richtung ein ungleicher Spalt ergeben, der durch das eingebrachte öl nicht ausreichend abgedichtet werden könnte.Such a coupling arrangement is particularly advantageous if, when the cylinder block 2 is mounted directly on the fixed axis 1, the gap between the cylinder block 2 and the fixed axis 1 has a decreasing cross-section in the direction from the suction slot to the pressure slot, to one from the suction slot Pressure slot to receive increasing oil pressure in the gap in accordance with the compression pressure. Due to the elasticity of the leaf springs 6 in the axial direction, the cylinder block 2 can always adjust so that ke . occurs in tilting of the cylinder block with respect to the fixed axis 1. Such tilting would result in an uneven gap in the axial direction which could not be adequately sealed by the oil introduced.

Claims (3)

1. Aus einem Radialkolbenverdichter und einem Antriebsmotor bestehendes Verdichteraggregat, bei dem der Läufer des Antriebsmotors mit dem Zylinderblock des Radialkolbenverdichters verbunden und von diesem radialgeführt ist, dadurch gekennzeichnet , daß der Läufer (4) und der Zylinderblock (2) über ein kardanisches Gelenk miteinander verbunden sind.1. From a radial piston compressor and a drive motor existing compressor unit, in which the rotor of the drive motor is connected to the cylinder block of the radial piston compressor and radially guided by this, characterized in that the rotor (4) and the cylinder block (2) connected to each other via a cardan joint are. 2. Verdichteraggregat nach Anspruch 1, dadurch gekennzeichnet, daß als kardanisches Gelenk etwa in der Mittelebene des Zylinderblockes. (2) liegende Blattfedern (6) vorgesehen sind, die mit ihrem einen Ende an dem Zylinderblock (2) und mit ihrem anderen Ende an Vorsprüngen oder Armen (5) des Läufers befestigt sind, wobei eines der Enden der Blattfedern (6) jeweils verdrehfest befestigt ist.2. Compressor unit according to claim 1, characterized in that as a cardan joint approximately in the central plane of the cylinder block. (2) lying leaf springs (6) are provided, which are fastened at one end to the cylinder block (2) and at the other end to projections or arms (5) of the rotor, one of the ends of the leaf springs (6) in each case non-rotatably is attached. 3. Verdichteraggregat nach Anspruch 2, dadurch gekennzeichnet, daß die Blattfedern V-förmig ausgebildet sind und der eine Schenkel jeder Blattfeder (6) an zwei voneinander beabstandeten Stellen (7 und 8) befestigt ist.3. Compressor unit according to claim 2, characterized in that the leaf springs are V-shaped and one leg of each leaf spring (6) is attached to two spaced apart locations (7 and 8).
EP82104477A 1981-06-02 1982-05-21 Coupling installation on a compressor aggregate consisting of a radial piston compressor and a driving motor Expired EP0066222B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82104477T ATE14914T1 (en) 1981-06-02 1982-05-21 COUPLING ARRANGEMENT ON A COMPRESSOR UNIT CONSISTING OF A RADIAL PISTON COMPRESSOR AND A DRIVE MOTOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3121874A DE3121874C2 (en) 1981-06-02 1981-06-02 Coupling arrangement on a compressor unit consisting of a radial piston compressor and a drive motor
DE3121874 1981-06-02

Publications (2)

Publication Number Publication Date
EP0066222A1 true EP0066222A1 (en) 1982-12-08
EP0066222B1 EP0066222B1 (en) 1985-08-14

Family

ID=6133747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104477A Expired EP0066222B1 (en) 1981-06-02 1982-05-21 Coupling installation on a compressor aggregate consisting of a radial piston compressor and a driving motor

Country Status (7)

Country Link
US (1) US4451211A (en)
EP (1) EP0066222B1 (en)
JP (1) JPS5841279A (en)
AT (1) ATE14914T1 (en)
DE (2) DE3121874C2 (en)
DK (1) DK244682A (en)
IE (1) IE52861B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2284618A1 (en) * 1997-03-24 1998-10-01 Magnesium Technology Limited Colouring magnesium or magnesium alloy articles
CN101660510B (en) * 2009-09-29 2012-05-23 陈人德 Piston-type double-acting multi-cylinder injection type pump air device of air compressor
CH703310A1 (en) * 2010-06-03 2011-12-15 Medela Holding Ag Piston pump device.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710734B2 (en) * 1977-03-11 1979-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Compressor unit, consisting of a drive motor and a compressor with eccentrically guided, freely movable pistons

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR587413A (en) * 1923-10-17 1925-04-17 Machine with rotating cylinders arranged in a star
FR661607A (en) * 1928-10-08 1929-07-27 Samga Et Bavox Reunis Ets Gas pump
DE667359C (en) * 1937-03-05 1938-11-10 Suerth Maschf Device for the lubrication of compressor refrigeration machines
SU362155A1 (en) * 1971-08-02 1972-12-13 COMPENSATING COUPLING
US4019346A (en) * 1974-02-13 1977-04-26 Kanto Special Steel Works Ltd. Flexible coupling for rotating shafts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710734B2 (en) * 1977-03-11 1979-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Compressor unit, consisting of a drive motor and a compressor with eccentrically guided, freely movable pistons

Also Published As

Publication number Publication date
DE3121874A1 (en) 1982-12-16
US4451211A (en) 1984-05-29
DK244682A (en) 1982-12-03
JPS5841279A (en) 1983-03-10
EP0066222B1 (en) 1985-08-14
ATE14914T1 (en) 1985-08-15
DE3265403D1 (en) 1985-09-19
JPS6212396B2 (en) 1987-03-18
IE52861B1 (en) 1988-03-30
IE821316L (en) 1982-12-02
DE3121874C2 (en) 1983-11-17

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