EP0920587A1 - Refrigerant compressor - Google Patents

Refrigerant compressor

Info

Publication number
EP0920587A1
EP0920587A1 EP98934981A EP98934981A EP0920587A1 EP 0920587 A1 EP0920587 A1 EP 0920587A1 EP 98934981 A EP98934981 A EP 98934981A EP 98934981 A EP98934981 A EP 98934981A EP 0920587 A1 EP0920587 A1 EP 0920587A1
Authority
EP
European Patent Office
Prior art keywords
connection
suction
refrigerant compressor
adjusting part
compressor according
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
EP98934981A
Other languages
German (de)
French (fr)
Other versions
EP0920587B1 (en
Inventor
Helmut Barowsky
Volker Pollrich
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.)
Bitzer Kuehlmaschinenbau GmbH and Co KG
Original Assignee
Bitzer Kuehlmaschinenbau GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bitzer Kuehlmaschinenbau GmbH and Co KG filed Critical Bitzer Kuehlmaschinenbau GmbH and Co KG
Publication of EP0920587A1 publication Critical patent/EP0920587A1/en
Application granted granted Critical
Publication of EP0920587B1 publication Critical patent/EP0920587B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/023—Compressor arrangements of motor-compressor units with compressor of reciprocating-piston type

Definitions

  • the invention relates to a refrigerant compressor, comprising a motor unit, which has a motor and a cooling duct for the engine, starting from an outer cooling duct connection, and a compressor unit, which has a compressor stage with a compressor stage inlet and a compressor stage outlet and a suction duct starting from an outer intake connection which, like the cooling channel, is led to the compressor stage inlet.
  • Such refrigerant compressors are known from the prior art.
  • the piping system for the suction gas is to be routed either to the cooling duct connection or to the intake connection, depending on the type of cooling to be implemented in the motor unit.
  • the invention is therefore based on the object of improving a refrigerant compressor of the generic type in such a way that the cooling can be implemented variably with the least possible structural changes.
  • a refrigerant compressor of the generic type according to the invention in that an external connection unit is provided, on which the cooling duct connection and the suction connection are arranged, that the connection unit has a receptacle and an adjustment part which can be inserted into the receptacle in at least two different positions is and that by the different positions of the adjusting part of the cooling duct connection and portions supplied to the suction connection can be set differently from the total amount of suction gas supplied via an outer suction gas connection.
  • the refrigerant compressor has a single suction gas connection to which the pipeline for the suction gas is to be routed and that, depending on the area of use, a different type of cooling, namely differently strong suction gas cooling of the motor unit to the exclusive air cooling of the motor unit, can be done simply by changing the installation of the adjustment part.
  • a different type of cooling namely differently strong suction gas cooling of the motor unit to the exclusive air cooling of the motor unit.
  • a particularly favorable solution provides that in one of the positions with the setting part a connection between an outer suction gas connection and the cooling channel connection and in another of the positions with the setting part a connection between the suction gas connection and the suction connection can be established.
  • a particularly advantageous solution provides that the setting part can be inserted into the receptacle in positions rotated about an axis of symmetry of the suction gas connection.
  • This solution has the advantage that by rotating about an axis of symmetry of the suction gas connection, the axis of symmetry of the suction gas connection itself remains unchanged locally and thus the pipes leading to the suction gas connection are also to be led to the same location regardless of the type of cooling of the motor unit.
  • suction gas connection is rotationally symmetrical, so that there is the possibility of realizing the two positions of the adjusting part by two positions which are fundamentally rotated relative to one another.
  • connection unit in such a way that the setting part can be mounted in the corresponding position after opening the compressor housing.
  • the adjustment part can be inserted into the receptacle via an outer opening of the connection unit.
  • this allows the setting part to be easily replaced and, on the other hand, it can be brought into the two positions in a simple manner without manipulation of the refrigerant compressor itself.
  • connection unit itself should be designed.
  • the connection unit in such a way that the setting part, with an element lying outside the receptacle, establishes the connection between the suction gas connection and the suction connection or the cooling channel connection.
  • a particularly favorable solution provides that the receptacle has an interior in which the cooling duct connection and the suction connection open and that either the cooling duct connection or the suction connection can be covered in each of the positions of the adjusting part. This solution therefore has the advantage that it has a very compact construction, since the cooling duct connection or the suction connection is closed by a region of the adjusting part which engages in the interior.
  • a particularly favorable solution provides that the interior of the receptacle has an approximately cylindrical shape, since in this case the adjustment part corresponding to this can be easily produced.
  • a particularly advantageous solution provides that the interior of the receptacle extends as a recess into a partition wall, which has the cooling duct and the intake duct separates from one another, since in this case the cooling duct connection and the suction connection can be arranged particularly favorably so that they open into the interior.
  • a particularly expedient solution with regard to the compact design provides that the adjusting part can be inserted into the interior and is thus integrated into the refrigerant compressor according to the invention in a space-saving manner.
  • the adjusting part receives a suction gas filter.
  • the adjusting part can be realized as simply as desired if it has a cover body with which either the cooling duct connection or the suction connection can be closed, so that the suction gas supplied via the suction gas connection enters the connection that is not closed.
  • the cover body could be of any complexity.
  • a particularly advantageous solution provides that the cover body has an approximately semi-cylindrical shape, so that it can be used to cover the cooling duct connection or the suction connection in a simple manner if these open into a cylindrical wall of the interior.
  • a flange plate is arranged on the setting part, which can be placed on a connection flange of the connection unit, so that on the one hand with this plate Fixing of the adjusting part takes place and on the other hand, the elements required for the supply of the suction gas could then be connected to the flange plate itself.
  • suction gas shut-off valve can be mounted on the flange plate of the adjusting part.
  • the flange plate has a different shape on one side of the adjustment part than on an opposite side.
  • the position of the flange plate and thus the position of the adjusting part can thus easily be recognized from the differing shape of the sides opposite each other.
  • a particularly favorable solution is one in which the flange plate and the adjusting part fixedly arranged thereon can be mounted on the receptacle in two positions, each rotated by 180 ° with respect to one another.
  • the two positions of the adjustment part can be realized in a simple manner with standard flange fastenings which have a double symmetry, without further special fastening measures being required.
  • FIG. 1 shows a longitudinal section through a refrigerant compressor according to the invention.
  • FIG. 2 shows a section along line 2-2 in FIG. 1 with the cooling duct connection closed;
  • FIG. 3 shows a section along line 2-2 in FIG. 1 with the suction connection closed
  • Fig. 4 is a plan view of an inventive
  • Fig. 5 is a plan view of the adjusting part according to the invention in the direction of arrow B in Fig. 4 and
  • FIG. 6 is a plan view of the adjusting part according to the invention in the direction of arrow C in FIG. 5.
  • An exemplary embodiment of a refrigerant compressor 10 comprises a motor unit designated as a whole by 12 and a compressor unit designated as a whole by 14, both of which are arranged in a common compressor housing 16.
  • a section 18 of the compressor housing 16 encloses the motor designated as a whole by 20, preferably an electric motor, which in turn drives via a shaft 22 a piston compressor 26 which forms a compressor stage and is arranged in a section 24 of the compressor housing 16.
  • Refrigerant is supplied via a suction gas pipe 28, which is led to a suction gas shut-off valve 30.
  • the suction gas shut-off valve 30 is mounted on a connection unit, designated as a whole by 32, which is connected via a cooling duct connection 34 to a cooling duct 36, which is provided in section 18 of the compressor housing 16 and serves to draw in refrigerant drawn by the engine. 20 receiving engine compartment 38 and thus also to pass through the engine 20, the cooling channel 36 leading the drawn-in refrigerant after flowing through the engine 20 to a cooling channel outlet 40.
  • refrigerant can be supplied to a suction channel 46 which is led to a compressor stage inlet 48.
  • the cooling channel outlet 40 preferably also opens into the intake channel 46, so that refrigerant flowing through the cooling channel 36 can also be supplied to the intake channel 46 and via this to the compressor stage inlet 48.
  • the refrigerant is compressed, which can then be removed via a compressor stage outlet 50.
  • the cooling channel 36 and the suction channel 46 are separated by a wall 60 provided in the compressor housing 16 and bounded by an outer housing wall 62 and an inner housing wall 64 extending at a distance therefrom .
  • the wall 60 extends up to the connection unit 32 and is to form a receptacle 66 with a Provide recess so that the receptacle 66 can form an interior space 68 which extends between the outer housing wall 62 and the inner housing wall 64 and into which the cooling duct connection 34 and the suction connection 44 open.
  • an adjusting part in the interior 68 of the receptacle 66, an adjusting part, designated as a whole by 70, can be inserted via an outer opening 71, which, as shown in FIGS. 4 and 5, has a covering body 74 which is approximately semi-cylindrical with its outer circumferential surface with respect to a cylinder axis 72, which in turn is firmly connected to a flange plate 76.
  • the cover body 74 which is approximately semi-cylindrical to the axis 72, can be inserted into the receptacle 66 such that the cylinder axis 72 extends transversely, preferably perpendicularly, to the outer housing wall 62 and the inner housing wall 64, the cover body 74 having a length in the direction of the cylinder axis 72, so that it extends with its underside 78 facing away from the flange plate 76 in the state inserted into the receptacle 66 to the inner housing wall 64, and preferably closes with this.
  • the cover body 74 encloses an inflow space 82 in the form of a cylinder jacket and, due to its only approximately semi-cylindrical shape, also has an opening 80 through which suction gas can emerge from the inflow space 82 enclosed by the cover body 74.
  • the flange plate 76 also has an inflow opening 84, which represents a suction gas connection, via which suction gas can flow into the inflow space 82 from the suction gas shut-off valve 30 in the direction of the cylinder axis 72.
  • a suction gas filter 86 can preferably be inserted into the inflow space 82 enclosed by the cover body 74, in such a way that the suction gas flowing in from the suction gas shut-off valve 30 via the inflow opening 84 first passes through the suction gas filter 86 and then enters the inflow space 82.
  • the cover body 74 with the flange plate 76 can either be inserted into the receptacle in such a way that the cover body 74 essentially covers the cooling duct connection 34 and thus prevents the suction gas from the inflow space 82 into the cooling duct 36 occurs, but the opening 80 faces the suction port 44, so that the suction gas from the inflow space 82 can enter the suction channel 46 via the suction port 44, as shown in FIG. 2.
  • the cover body 74 with the flange plate 76 into the receptacle 66 about the cylinder axis 72 of the cover body rotated by 180 °, so that the cover body 74 covers the suction port 44 and prevents the suction gas from the inflow space 82 into the Intake channel 46 can occur.
  • the suction gas then flows through the opening 80 facing the cooling duct connection 34 into the cooling duct 36 via the cooling duct connection 34, flows through the engine compartment 38 as shown in FIG. 1 and enters the suction duct 46 via the cooling duct outlet 40.
  • cover body 74 it is also possible to design the cover body 74 so that it only partially covers the cooling duct connection 34 or the suction connection 44, so that a certain proportion of the suction gas always enters into it, but the greater proportion of the suction gas enters the suction connection 44 or the Cooling channel connection 34 occurs. Furthermore, it is still possible to provide intermediate positions of the cover body 74, in which it partially covers the suction port 44 and the cooling channel port 34, so that the portions of the suction gas entering the suction port 44 and the cooling channel port 34 can also be adjusted in intermediate stages.
  • the flange plate 76 is provided with two screw holes 88, 90 which are arranged opposite one another with respect to the cylinder axis 72, so that the flange plate 76 with the outer housing wall in two positions rotated by 180 ° around the cylinder axis 72 62 is connectable.
  • the flange plate 76 also represents a connection flange for the suction gas shut-off valve 30, which can be placed with its connection flange on the flange plate 76 and can be connected to this together with a connection flange 92 of the connection unit 52 by means of screws.
  • the flange plate 76 is asymmetrical with respect to the cylinder axis 72 and has, for example on the side of the opening 80, additional lugs 94 which are not present on the opposite side, that is to say on the closed side of the cover body 74, so that lugs 94 can be seen on these , in which of the two positions rotated by 180 ° relative to one another by 180 ° around the cylinder axis 72, the cover body 74 with the flange plate 76 is inserted.

Abstract

The invention relates to a refrigerant compressor comprising a motor unit (20) which has a motor and a cooling duct (36), running from an external cooling duct connection for the motor. The refrigerant compressor also has a compressor unit (26) having a compressor stage with an inlet (48), an outlet (50), and a suction duct (46). The suction duct runs from an external suction connection and, like the cooling duct, leads to the compressor stage outlet. The invention seeks to improve this refrigerant compressor so that cooling can be carried out variably and with a minimum of structural alterations. To this end, an external connection unit (32) is fitted, onto which the cooling duct connection and the suction connection are mounted. Furthermore, the connection unit has a support and an adjusting device (71) which can be inserted into the support in at least two different positions. The proportion of the total amount of suction gas which is supplied to the cooling channel connection and the suction channel via an external suction gas connection can thus be varied by setting the adjustment device (71) to different positions.

Description

Kältemittelkompressor Refrigerant compressor
Die Erfindung betrifft einen Kältemittelkompressor, umfassend eine Motoreinheit, welche einen Motor und einen von einem äußeren Kühlkanalanschluß ausgehenden Kühlkanal für den Motor aufweist, sowie eine Verdichtereinheit, welche eine Verdichterstufe mit einem Verdichterstufeneinlaß und einen Ver- dichterstufenauslaß und einen von einem äußeren Ansauganschluß ausgehenden Ansaugkanal aufweist, welcher wie der Kühlkanal zu dem Verdichterstufeneinlaß geführt ist.The invention relates to a refrigerant compressor, comprising a motor unit, which has a motor and a cooling duct for the engine, starting from an outer cooling duct connection, and a compressor unit, which has a compressor stage with a compressor stage inlet and a compressor stage outlet and a suction duct starting from an outer intake connection which, like the cooling channel, is led to the compressor stage inlet.
Derartige Kältemittelkompressoren sind aus dem Stand der Technik bekannt. Bei diesen ist das Rohrleitungssystem für das Sauggas entweder zum Kühlkanalanschluß oder zum Ansauganschluß zu führen, je nach dem, welche Art der Kühlung bei der Motoreinheit realisiert werden soll.Such refrigerant compressors are known from the prior art. In these, the piping system for the suction gas is to be routed either to the cooling duct connection or to the intake connection, depending on the type of cooling to be implemented in the motor unit.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Kältemittelkompressor der gattungsgemäßen Art derart zu verbessern, daß die Kühlung variabel mit möglichst geringen baulichen Änderungen realisierbar ist.The invention is therefore based on the object of improving a refrigerant compressor of the generic type in such a way that the cooling can be implemented variably with the least possible structural changes.
Diese Aufgabe wird bei einem Kältemittelkompressor der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, daß eine äußere Anschlußeinheit vorgesehen ist, an welcher der Kühlkanalanschluß und der Ansauganschluß angeordnet sind, daß die Anschlußeinheit eine Aufnahme und ein Einstellteil aufweist, welches in mindestens zwei unterschiedlichen Stellungen in die Aufnahme einsetzbar ist und daß durch die verschiedenen Stellungen des Einstellteils die dem Kühlkanalanschluß und dem Ansauganschluß zugeführten Anteile von der Gesamtmenge des über einem äußeren Sauggasanschluß zugeführten Sauggases unterschiedlich einstellbar sind.This object is achieved in a refrigerant compressor of the generic type according to the invention in that an external connection unit is provided, on which the cooling duct connection and the suction connection are arranged, that the connection unit has a receptacle and an adjustment part which can be inserted into the receptacle in at least two different positions is and that by the different positions of the adjusting part of the cooling duct connection and portions supplied to the suction connection can be set differently from the total amount of suction gas supplied via an outer suction gas connection.
Der Vorteil der erfindungsgemäßen Lösung ist somit darin zu sehen, daß bei dem Kältemittelkompressor ein einziger Saug- gasanschluß vorgesehen ist, zu dem die Rohrleitung für das Sauggas zu führen ist und daß je nach Einsatzbereich eine unterschiedliche Art der Kühlung, nämlich unterschiedlich starke Sauggaskühlung der Motoreinheit bis hin zur ausschließlichen Luftkühlung der Motoreinheit, in einfacher Weise lediglich durch geänderten Einbau des Einstellteils erfolgen kann. Das heißt, daß durch Variation des Anteils des Sauggases, welches in den Kühlkanalanschluß einströmt, und des Anteils des Sauggases, welches in den Ansauganschluß einströmt, die Kühlung der Motoreinheit durch das Sauggas in Anpassung an den jeweiligen Einsatzfall einstellbar ist.The advantage of the solution according to the invention is thus to be seen in the fact that the refrigerant compressor has a single suction gas connection to which the pipeline for the suction gas is to be routed and that, depending on the area of use, a different type of cooling, namely differently strong suction gas cooling of the motor unit to the exclusive air cooling of the motor unit, can be done simply by changing the installation of the adjustment part. This means that by varying the proportion of the suction gas that flows into the cooling duct connection and the proportion of the suction gas that flows into the suction connection, the cooling of the motor unit by the suction gas can be adjusted to suit the particular application.
Damit läßt sich unabhängig davon, welche Art der Kühlung der Motoreinheit realisiert werden soll, ein Einbau des Kältemittelkompressors standardisiert vorbereiten.Regardless of what type of cooling of the motor unit is to be implemented, this allows a standardized preparation of the installation of the refrigerant compressor.
Eine besonders günstige Lösung sieht vor, daß in einer der Stellungen mit dem Einstellteil eine Verbindung zwischen einem äußeren Sauggasanschluß und dem Kühlkanalanschluß und in einer anderen der Stellungen mit dem Einstellteil eine Verbindung zwischen dem Sauggasanschluß und dem Ansauganschluß herstellbar sind.A particularly favorable solution provides that in one of the positions with the setting part a connection between an outer suction gas connection and the cooling channel connection and in another of the positions with the setting part a connection between the suction gas connection and the suction connection can be established.
Damit ist die Möglichkeit einer Einstellung einer im wesentlichen ausschließlichen Sauggaskühlung und einer im wesentlichen ausschließlichen Luftkühlung der Motoreinheit gegeben. Die Art der Stellungen, in welchen das Einstellteil in die Aufnahme einsetzbar sein soll, ist im Zusammenhang mit der bislang beschriebenen erfindungsgemäßen Lösung nicht näher spezifiziert. Beispielsweise ist es denkbar, das Einstellteil in zwei durch eine Translationsbewegung sich unterscheidende Stellungen einzubauen. Dies hat jedoch den Nachteil, daß die zwei Stellungen des Sauggasanschlusses sich ebenfalls durch ihre räumliche Anordnung unterscheiden.This enables the setting of an essentially exclusive suction gas cooling and an essentially exclusive air cooling of the motor unit. The type of positions in which the setting part should be able to be inserted into the receptacle is not specified in connection with the inventive solution described so far. For example, it is conceivable to install the adjusting part in two positions that differ from one another through a translational movement. However, this has the disadvantage that the two positions of the suction gas connection also differ in their spatial arrangement.
Aus diesem Grund sieht eine besonders vorteilhafte Lösung vor, daß das Einstellteil in um eine Symmetrieachse des Sauggasanschlusses gedrehten Stellungen in die Aufnahme einsetzbar ist. Diese Lösung hat den Vorteil, daß durch die Drehung um eine Symmetrieachse des Sauggasanschlusses die Symmetrieachse des Sauggasanschlusses selbst lokal unverändert stehen bleibt und somit die zum Sauggasanschluß führenden Rohrleitungen ebenfalls unabhängig von der Art der Kühlung der Motoreinheit zum selben Ort zu führen sind.For this reason, a particularly advantageous solution provides that the setting part can be inserted into the receptacle in positions rotated about an axis of symmetry of the suction gas connection. This solution has the advantage that by rotating about an axis of symmetry of the suction gas connection, the axis of symmetry of the suction gas connection itself remains unchanged locally and thus the pipes leading to the suction gas connection are also to be led to the same location regardless of the type of cooling of the motor unit.
Diese Lösung ist insbesondere dann günstig, wenn der Sauggasanschluß rotationssymmetrisch ausgebildet ist, so daß die Möglichkeit besteht, die beiden Stellungen des Einstellteils durch zwei relativ zueinander grundsätzlich beliebig verdrehte Stellungen zu realisieren.This solution is particularly advantageous if the suction gas connection is rotationally symmetrical, so that there is the possibility of realizing the two positions of the adjusting part by two positions which are fundamentally rotated relative to one another.
Hinsichtlich der Art des Einbaus des Einstellteils wurden bislang ebenfalls keine näheren Angaben gemacht. So wäre es beispielsweise denkbar, die Anschlußeinheit so auszubilden, daß nach Öffnen des Kompressorgehäuses das Einstellteil in der entsprechenden Stellung montierbar ist. Um dieses umständliche Öffnen des Kompressorgehäuses jedoch zu vermeiden, ist vorzugsweise vorgesehen, daß das Einstellteil über eine äußere Öffnung der Anschlußeinheit in die Aufnahme einsetzbar ist.No details have yet been given regarding the type of installation of the setting part. It would be conceivable, for example, to design the connection unit in such a way that the setting part can be mounted in the corresponding position after opening the compressor housing. However, to avoid this cumbersome opening of the compressor housing, it is preferably provided that the adjustment part can be inserted into the receptacle via an outer opening of the connection unit.
Damit läßt sich einerseits das Einstellteil leicht austauschen und andererseits in einfacher Weise in die beiden Stellungen bringen, ohne daß Manipulationen an dem Kältemittelkompressor selbst erforderlich sind.On the one hand, this allows the setting part to be easily replaced and, on the other hand, it can be brought into the two positions in a simple manner without manipulation of the refrigerant compressor itself.
Bislang wurde nicht im einzelnen spezifiziert, wie die Anschlußeinheit selbst ausgebildet sein soll. Beispielsweise wäre es denkbar, die Anschlußeinheit so auszubilden, daß das Einstellteil mit einem außerhalb der Aufnahme liegenden Element die Verbindung zwischen dem Sauggasanschluß und dem Ansauganschluß oder dem Kühlkanalanschluß herstellt. Eine besonders günstige Lösung sieht vor, daß die Aufnahme einen Innenraum aufweist, in welchem der Kühlkanalanschluß und der Ansauganschluß münden und daß in jeder der Stellungen des Einstellteils entweder der Kühlkanalanschluß oder der Ansauganschluß abdeckbar sind. Diese Lösung hat somit den Vorteil, daß sie sehr kompakt baut, da das Verschließen des Kühlkanal- anschlusses oder des Ansauganschlusses durch einen in den Innenraum eingreifenden Bereich des Einstellteils erfolgt.So far it has not been specified in detail how the connection unit itself should be designed. For example, it would be conceivable to design the connection unit in such a way that the setting part, with an element lying outside the receptacle, establishes the connection between the suction gas connection and the suction connection or the cooling channel connection. A particularly favorable solution provides that the receptacle has an interior in which the cooling duct connection and the suction connection open and that either the cooling duct connection or the suction connection can be covered in each of the positions of the adjusting part. This solution therefore has the advantage that it has a very compact construction, since the cooling duct connection or the suction connection is closed by a region of the adjusting part which engages in the interior.
Eine besonders günstige Lösung sieht vor, daß der Innenraum der Aufnahme eine ungefähr zylindrische Form aufweist, da sich in diesem Fall das hierzu entsprechende Einstellteil einfach herstellen läßt.A particularly favorable solution provides that the interior of the receptacle has an approximately cylindrical shape, since in this case the adjustment part corresponding to this can be easily produced.
Eine besonders vorteilhafte Lösung sieht dabei vor, daß der Innenraum der Aufnahme sich als Ausnehmung in eine Trennwand hineinerstreckt, welche den Kühlkanal und den Ansaugkanal voneinander trennt, da sich in diesem Fall der Kühlkanalanschluß und der Ansauganschluß besonders günstig so anordnen lassen, daß sie in den Innenraum münden.A particularly advantageous solution provides that the interior of the receptacle extends as a recess into a partition wall, which has the cooling duct and the intake duct separates from one another, since in this case the cooling duct connection and the suction connection can be arranged particularly favorably so that they open into the interior.
Eine hinsichtlich der kompakten Bauweise besonders zweckmäßige Lösung sieht vor, daß das Einstellteil in den Innenraum einsetzbar ist und somit raumsparend in den erfindungsgemäßen Kältemittelkompressor integriert ist.A particularly expedient solution with regard to the compact design provides that the adjusting part can be inserted into the interior and is thus integrated into the refrigerant compressor according to the invention in a space-saving manner.
Um ferner noch gleichzeitig eine Filterung des Sauggases zu erreichen, ist vorzugsweise vorgesehen, daß das Einstellteil ein Sauggasfilter aufnimmt.In order also to achieve filtering of the suction gas at the same time, it is preferably provided that the adjusting part receives a suction gas filter.
Das Einstellteil läßt sich beliebig einfach dann realisieren, wenn dieses einen Abdeckkörper aufweist, mit welchem entweder der Kühlkanalanschluß oder der Ansauganschluß verschließbar ist, so daß das über den Sauggasanschluß zugeführte Sauggas in den jeweils nicht verschlossenen Anschluß eintritt.The adjusting part can be realized as simply as desired if it has a cover body with which either the cooling duct connection or the suction connection can be closed, so that the suction gas supplied via the suction gas connection enters the connection that is not closed.
Der Abdeckkörper könnte beliebig komplex ausgebildet sein. Eine besonders vorteilhafte Lösung sieht vor, daß der Abdeckkörper eine ungefähr halbzylindrische Form aufweist, so daß sich mit diesem in einfacher Weise der Kühlkanalanschluß oder der Ansauganschluß abdecken läßt, wenn diese in eine zylindrische Wand des Innenraums münden.The cover body could be of any complexity. A particularly advantageous solution provides that the cover body has an approximately semi-cylindrical shape, so that it can be used to cover the cooling duct connection or the suction connection in a simple manner if these open into a cylindrical wall of the interior.
Um das Einstellteil in der jeweiligen Stellung an der Anschlußeinheit fixieren zu können, ist vorzugsweise vorgesehen, daß an dem Einstellteil eine Flanschplatte angeordnet ist, welche auf einen Anschlußflansch der Anschlußeinheit auflegbar ist, so daß mit dieser Platte einerseits eine Fixierung des Einstellteils erfolgt und andererseits dann an der Flanschplatte selbst die für die Zufuhr des Sauggases erforderlichen Elemente angeschlossen werden könnten.In order to be able to fix the setting part in the respective position on the connection unit, it is preferably provided that a flange plate is arranged on the setting part, which can be placed on a connection flange of the connection unit, so that on the one hand with this plate Fixing of the adjusting part takes place and on the other hand, the elements required for the supply of the suction gas could then be connected to the flange plate itself.
Besonders vorteilhaft ist es in diesem Fall, wenn auf der Flanschplatte des Einstellteils das Sauggasabsperrventil montierbar ist.In this case, it is particularly advantageous if the suction gas shut-off valve can be mounted on the flange plate of the adjusting part.
Um gleichzeitig an der Flanschplatte erkennen zu können, in welcher Stellung das Einstellteil steht, ist vorzugsweise vorgesehen, daß die Flanschplatte auf einer Seite des Einstellteils eine andere Form aufweist, als auf einer gegenüberliegenden Seite. Damit ist bereits an der sich unterscheidenden Form der jeweils einander gegenüberliegenden Seiten in einfacher Weise die Stellung der Flanschplatte und somit die Stellung des Einstellteils erkennbar.In order to be able to recognize at the same time from the flange plate in which position the adjustment part is, it is preferably provided that the flange plate has a different shape on one side of the adjustment part than on an opposite side. The position of the flange plate and thus the position of the adjusting part can thus easily be recognized from the differing shape of the sides opposite each other.
Besonders günstig ist eine Lösung, bei welcher die Flanschplatte und das fest an dieser angeordnete Einstellteil in zwei jeweils um 180° gegeneinander gedrehten Stellungen an der Aufnahme montierbar sind. Mit dieser Lösung lassen sich mit Standardflanschbefestigungen, welche eine zweizählige Symmetrie aufweisen, in einfacher Weise die beiden Stellungen des Einstellteils realisieren, ohne daß weitere besondere Befestigungsmaßnahmen erforderlich sind.A particularly favorable solution is one in which the flange plate and the adjusting part fixedly arranged thereon can be mounted on the receptacle in two positions, each rotated by 180 ° with respect to one another. With this solution, the two positions of the adjustment part can be realized in a simple manner with standard flange fastenings which have a double symmetry, without further special fastening measures being required.
Weitere Merkmale der Erfindung sind Gegenstand der nachfolgenden Beschreibung sowie der zeichnerischen Darstellung eines Ausführungsbeispiels. In der Zeichnung zeigen:Further features of the invention are the subject of the following description and the drawing of an exemplary embodiment. The drawing shows:
Fig. 1 einen Längsschnitt durch einen erfindungsgemäßen Kältemittelkompressor;1 shows a longitudinal section through a refrigerant compressor according to the invention.
Fig. 2 einen Schnitt längs Linie 2-2 in Fig. 1 bei geschlossenem Kühlkanalanschluß;FIG. 2 shows a section along line 2-2 in FIG. 1 with the cooling duct connection closed;
Fig. 3 einen Schnitt längs Linie 2-2 in Fig. 1 bei geschlossenem Ansauganschluß;3 shows a section along line 2-2 in FIG. 1 with the suction connection closed;
Fig. 4 eine Draufsicht auf ein erfindungsgemäßesFig. 4 is a plan view of an inventive
Einstellteil in Richtung des Pfeils A in Fig. 5;Adjustment part in the direction of arrow A in Fig. 5;
Fig. 5 eine Draufsicht auf das erfindungsgemäße Einstellteil in Richtung des Pfeils B in Fig. 4 undFig. 5 is a plan view of the adjusting part according to the invention in the direction of arrow B in Fig. 4 and
Fig. 6 eine Draufsicht auf das erfindungsgemäße Einstellteil in Richtung des Pfeils C in Fig. 5.6 is a plan view of the adjusting part according to the invention in the direction of arrow C in FIG. 5.
Ein Ausführungsbeispiel eines erfindungsgemäßen Kältemittelkompressors 10 umfaßt eine als Ganzes mit 12 bezeichnete Motoreinheit und eine als Ganzes mit 14 bezeichnete Verdichtereinheit, die beide in einem gemeinsamen Kompressorgehäuse 16 angeordnet sind. Ein Abschnitt 18 des Kompressorgehäuses 16 umschließt dabei den als Ganzes mit 20 bezeichneten Motor, vorzugsweise einen Elektromotor, der seinerseits über eine Welle 22 einen in einem Abschnitt 24 des Kompressorgehäuses 16 angeordneten eine Verdichterstufe bildenden Kolbenverdichter 26 antreibt. Die Zufuhr von Kältemittel erfolgt über ein Sauggasrohr 28, welches zu einem Sauggasabsperrventil 30 geführt ist. Das Sauggasabsperrventil 30 ist an einer als Ganzes mit 32 bezeichneten Anschlußeinheit montiert, welche über einen Kühlkanalanschluß 34 mit einem Kühlkanal 36 in Verbindung steht, der im Abschnitt 18 des Kompressorgehäuses 16 vorgesehen ist und dazu dient, angesaugtes Kältemittel durch einen den Motor. 20 aufnehmenden Motorraum 38 und somit auch durch den Motor 20 hindurchzuführen, wobei der Kühlkanal 36 das angesaugte Kältemittel nach Durchströmen des Motors 20 zu einem Kühlkanalauslaß 40 führt.An exemplary embodiment of a refrigerant compressor 10 according to the invention comprises a motor unit designated as a whole by 12 and a compressor unit designated as a whole by 14, both of which are arranged in a common compressor housing 16. A section 18 of the compressor housing 16 encloses the motor designated as a whole by 20, preferably an electric motor, which in turn drives via a shaft 22 a piston compressor 26 which forms a compressor stage and is arranged in a section 24 of the compressor housing 16. Refrigerant is supplied via a suction gas pipe 28, which is led to a suction gas shut-off valve 30. The suction gas shut-off valve 30 is mounted on a connection unit, designated as a whole by 32, which is connected via a cooling duct connection 34 to a cooling duct 36, which is provided in section 18 of the compressor housing 16 and serves to draw in refrigerant drawn by the engine. 20 receiving engine compartment 38 and thus also to pass through the engine 20, the cooling channel 36 leading the drawn-in refrigerant after flowing through the engine 20 to a cooling channel outlet 40.
Ferner ist von der Anschlußeinheit 32 über einen Ansauganschluß 44 Kältemittel einen Ansaugkanal 46 zuführbar welcher zu einem Verdichterstufeneinlaß 48 geführt ist. Außerdem mündet vorzugsweise auch der Kühlkanalauslaß 40 in den Ansaugkanal 46, so daß über diesen auch durch den Kühlkanal 36 strömendes Kältemittel dem Ansaugkanal 46 und über diesen dem Verdichterstufeneinlaß 48 zuführbar ist.Furthermore, from the connection unit 32 via a suction connection 44, refrigerant can be supplied to a suction channel 46 which is led to a compressor stage inlet 48. In addition, the cooling channel outlet 40 preferably also opens into the intake channel 46, so that refrigerant flowing through the cooling channel 36 can also be supplied to the intake channel 46 and via this to the compressor stage inlet 48.
In der Verdichterstufe 26 erfolgt ein Verdichten des Kältemittels, welches dann über einen Verdichterstufenauslaß 50 abführbar ist.In the compressor stage 26, the refrigerant is compressed, which can then be removed via a compressor stage outlet 50.
Wie in Fig. 2 und 3 vergrößert dargestellt, sind der Kühlkanal 36 und der Ansaugkanal 46 durch eine im Kompressorgehäuse 16 vorgesehene Wand 60 getrennt und im Anschluß an die Wand 60 durch eine äußere Gehäusewand 62 und eine im Abstand von dieser verlaufenden innere Gehäusewand 64 begrenzt. Die Wand 60 verläuft dabei bis zu der Anschlußeinheit 32 und ist zur Bildung einer Aufnahme 66 mit einer Aussparung versehen, so daß die Aufnahme 66 einen Innenraum 68 bilden kann, welcher sich zwischen der äußeren Gehäusewand 62 und der inneren Gehäusewand 64 erstreckt und in welchen der Kühlkanalanschluß 34 und der Ansauganschluß 44 einmünden.As shown in FIGS. 2 and 3 enlarged, the cooling channel 36 and the suction channel 46 are separated by a wall 60 provided in the compressor housing 16 and bounded by an outer housing wall 62 and an inner housing wall 64 extending at a distance therefrom . The wall 60 extends up to the connection unit 32 and is to form a receptacle 66 with a Provide recess so that the receptacle 66 can form an interior space 68 which extends between the outer housing wall 62 and the inner housing wall 64 and into which the cooling duct connection 34 and the suction connection 44 open.
In den Innenraum 68 der Aufnahme 66 ist ein als Ganzes mit 70 bezeichnetes Einstellteil über eine äußere Öffnung 71 einsetzbar, .welches, wie in Fig. 4 und 5 dargestellt, einen mit seiner äußeren Mantelfläche zu einer Zylinderachse 72 ungefähr halbzylindrisch ausgebildeten Abdeckkörper 74 aufweist, welcher seinerseits fest mit einer Flanschplatte 76 verbunden ist.In the interior 68 of the receptacle 66, an adjusting part, designated as a whole by 70, can be inserted via an outer opening 71, which, as shown in FIGS. 4 and 5, has a covering body 74 which is approximately semi-cylindrical with its outer circumferential surface with respect to a cylinder axis 72, which in turn is firmly connected to a flange plate 76.
Der ungefähr halbzylindrisch zur Achse 72 ausgebildete Abdeckkörper 74 ist dabei so in die Aufnahme 66 einsetzbar, daß sich die Zylinderachse 72 quer, vorzugsweise senkrecht zur äußeren Gehäusewand 62 und inneren Gehäusewand 64 erstreckt, wobei der Abdeckkörper 74 in Richtung der Zylinderachse 72 eine Länge aufweist, so daß er mit seiner der Flanschplatte 76 abgewandten Unterseite 78 im in die Aufnahme 66 eingesetzten Zustand bis zur inneren Gehäusewand 64 reicht, und vorzugsweise mit dieser abschließt.The cover body 74, which is approximately semi-cylindrical to the axis 72, can be inserted into the receptacle 66 such that the cylinder axis 72 extends transversely, preferably perpendicularly, to the outer housing wall 62 and the inner housing wall 64, the cover body 74 having a length in the direction of the cylinder axis 72, so that it extends with its underside 78 facing away from the flange plate 76 in the state inserted into the receptacle 66 to the inner housing wall 64, and preferably closes with this.
Der Abdeckkörper 74 umschließt in Form eines Zylindermantels einen Einströmraum 82 und weist ferner aufgrund seiner nur ungefähr halbzylindrischen Form noch eine Öffnung 80 auf, über welche Sauggas aus dem vom Abdeckkörper 74 umschlossenen Einströmraum 82 austreten kann. Die Flanschplatte 76 weist ferner eine Einströmöffnung 84 auf, welche einen Sauggasanschluß darstellt, über welchen vom Sauggasabsperrventil 30 in Richtung der Zylinderachse 72 Sauggas in den Einströmraum 82 einströmen kann.The cover body 74 encloses an inflow space 82 in the form of a cylinder jacket and, due to its only approximately semi-cylindrical shape, also has an opening 80 through which suction gas can emerge from the inflow space 82 enclosed by the cover body 74. The flange plate 76 also has an inflow opening 84, which represents a suction gas connection, via which suction gas can flow into the inflow space 82 from the suction gas shut-off valve 30 in the direction of the cylinder axis 72.
Vorzugsweise ist in den vom Abdeckkörper 74 umschlossenen Einströmraum 82 ein Sauggasfilter 86 einsetzbar, und zwar so, daß das von dem Sauggasabsperrventil 30 über die Einströmöffnung 84 zuströmende Sauggas zunächst das Sauggasfilter 86 durchsetzt und dann in den Einströmraum 82 eintritt.A suction gas filter 86 can preferably be inserted into the inflow space 82 enclosed by the cover body 74, in such a way that the suction gas flowing in from the suction gas shut-off valve 30 via the inflow opening 84 first passes through the suction gas filter 86 and then enters the inflow space 82.
Der Abdeckkörper 74 mit der Flanschplatte 76 ist, wie in Fig. 2 und 3 dargestellt, entweder so in die Aufnahme einsetzbar, daß der Abdeckkörper 74 den Kühlkanalanschluß 34 im wesentlichen abdeckt und somit verhindert, daß das Sauggas von dem Einströmraum 82 in den Kühlkanal 36 eintritt, jedoch die Öffnung 80 dem Ansauganschluß 44 zugewandt ist, so daß das Sauggas von dem Einströmraum 82 über den Ansauganschluß 44 in den Ansaugkanal 46 eintreten kann, wie dies in Fig. 2 dargestellt ist.The cover body 74 with the flange plate 76, as shown in FIGS. 2 and 3, can either be inserted into the receptacle in such a way that the cover body 74 essentially covers the cooling duct connection 34 and thus prevents the suction gas from the inflow space 82 into the cooling duct 36 occurs, but the opening 80 faces the suction port 44, so that the suction gas from the inflow space 82 can enter the suction channel 46 via the suction port 44, as shown in FIG. 2.
Es ist aber auch möglich, den Abdeckkörper 74 mit der Flanschplatte 76 um die die Zylinderachse 72 des Abdeckkörpers um 180° gedreht in die Aufnahme 66 einzusetzen, so daß der Abdeckkörper 74 den Ansauganschluß 44 abdeckt und verhindert, das Sauggas von dem Einströmraum 82 in den Ansaugkanal 46 eintreten kann. Das Sauggas strömt dann über die dem Kühlkanalanschluß 34 zugewandte Öffnung 80 über den Kühlkanalanschluß 34 in den Kühlkanal 36 ein, durchströmt, wie in Fig. 1 dargestellt, den Motorraum 38 und tritt über den Kühlkanalauslaß 40 in den Ansaugkanal 46 ein. Es ist aber auch möglich, den Abdeckkörper 74 so auszubilden, daß dieser den Kühlkanalanschluß 34 oder den Ansauganschluß 44 nur teilweise abdeckt, so daß stets ein gewisser Anteil des Sauggases in diesen eintritt, jedoch der größere Anteil des Sauggases in den Ansauganschluß 44 bzw. den Kühlkanalanschluß 34 eintritt. Ferner ist es noch möglich, Zwischenstellungen des Abdeckkörpers 74 vorzusehen, in welchen dieser teilweise den Ansauganschluß 44 und den Kühlkanalanschluß 34 abdeckt, so daß auch noch die in den Ansauganschluß 44 und den Kühlkanalanschluß 34 eintretenden Anteile des Sauggases in Zwischenstufen einstellbar sind.However, it is also possible to insert the cover body 74 with the flange plate 76 into the receptacle 66 about the cylinder axis 72 of the cover body rotated by 180 °, so that the cover body 74 covers the suction port 44 and prevents the suction gas from the inflow space 82 into the Intake channel 46 can occur. The suction gas then flows through the opening 80 facing the cooling duct connection 34 into the cooling duct 36 via the cooling duct connection 34, flows through the engine compartment 38 as shown in FIG. 1 and enters the suction duct 46 via the cooling duct outlet 40. However, it is also possible to design the cover body 74 so that it only partially covers the cooling duct connection 34 or the suction connection 44, so that a certain proportion of the suction gas always enters into it, but the greater proportion of the suction gas enters the suction connection 44 or the Cooling channel connection 34 occurs. Furthermore, it is still possible to provide intermediate positions of the cover body 74, in which it partially covers the suction port 44 and the cooling channel port 34, so that the portions of the suction gas entering the suction port 44 and the cooling channel port 34 can also be adjusted in intermediate stages.
Zur Fixierung des Abdeckkörpers 74 mit der Flanschplatte 76 ist die Flanschplatte 76 mit zwei Schraubenlöchern 88, 90 versehen, die bezüglich der Zylinderachse 72 gegenüberliegend angeordnet sind, so daß die Flanschplatte 76 in zwei um 180° um die Zylinderachse 72 gedrehten Stellungen mit der äußeren Gehäusewand 62 verbindbar ist.To fix the cover body 74 with the flange plate 76, the flange plate 76 is provided with two screw holes 88, 90 which are arranged opposite one another with respect to the cylinder axis 72, so that the flange plate 76 with the outer housing wall in two positions rotated by 180 ° around the cylinder axis 72 62 is connectable.
Die Flanschplatte 76 stellt gleichzeitig auch einen Anschlußflansch für das Sauggasabsperrventil 30 dar, welches mit seinem Anschlußflansch auf die Flanschplatte 76 auflegbar ist und mit diesem gemeinsam mit einem Anschlußflansch 92 der Anschlußeinheit 52 mittels Schrauben verbindbar ist.The flange plate 76 also represents a connection flange for the suction gas shut-off valve 30, which can be placed with its connection flange on the flange plate 76 and can be connected to this together with a connection flange 92 of the connection unit 52 by means of screws.
Die Flanschplatte 76 ist bezüglich der Zylinderachse 72 asymmetrisch ausgebildet und weist beispielsweise auf Seiten der Öffnung 80 zusätzliche Nasen 94 auf, die auf der gegenüberliegenden Seite, das heißt auf der geschlossenen Seite des Abdeckkörpers 74 nicht vorhanden sind, so daß an diesen Nasen 94 erkennbar ist, in welcher der beiden um 180° gegeneinander um 180° um die Zylinderachse 72 gedrehten Stellungen der Abdeckkörper 74 mit der Flanschplatte 76 eingesetzt ist. The flange plate 76 is asymmetrical with respect to the cylinder axis 72 and has, for example on the side of the opening 80, additional lugs 94 which are not present on the opposite side, that is to say on the closed side of the cover body 74, so that lugs 94 can be seen on these , in which of the two positions rotated by 180 ° relative to one another by 180 ° around the cylinder axis 72, the cover body 74 with the flange plate 76 is inserted.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Kältemittelkompressor umfassend eine Motoreinheit, welche einen Motor und einen von einem äußeren Kühl- kanalanschluß ausgehenden Kühlkanal für den Motor aufweist, sowie eine Verdichtereinheit, welche eine Verdichterstufe mit einem Verdichterstufeneinlaß und einen Verdichterstufenauslaß und einen von einem äußeren Ansauganschluß ausgehenden Ansaugkanal aufweist, welcher wie der Kühlkanal zu dem Verdichterstufeneinlaß geführt ist, d a d u r c h g e k e n n z e i c h n e t, daß eine äußere Anschlußeinheit (32) vorgesehen ist, an welcher der Kühlkanalanschluß (34) und der Ansauganschluß (44) angeordnet sind, daß die Anschlußeinheit (32) eine Aufnahme (66) und ein Einstellteil (70) aufweist, welches in mindestens zwei unterschiedlichen Stellungen in die Aufnahme (66) einsetzbar ist und daß durch die verschiedenen Stellungen des Einstellteils (66) die dem Kühlkanalanschluß (34) und dem Ansauganschluß (44) zugeführten Anteile von der Gesamtmenge des über einem äußeren Sauggasanschluß ( 84 ) zugeführten Sauggases unterschiedlich einstellbar sind.1. A refrigerant compressor comprising a motor unit, which has a motor and a cooling duct for the engine, starting from an outer cooling duct connection, and a compressor unit, which has a compressor stage with a compressor stage inlet and a compressor stage outlet and a suction duct starting from an outer intake connection, which like the cooling duct is led to the compressor stage inlet, characterized in that an outer connection unit (32) is provided, on which the cooling duct connection (34) and the suction connection (44) are arranged, that the connection unit (32) has a receptacle (66) and an adjusting part (70), which can be used in at least two different positions in the receptacle (66) and that the different positions of the adjusting part (66) supply the cooling duct connection (34) and the suction connection (44) of the total amount of the over one Suction gases supplied to the outer suction gas connection (84) can be set differently.
2. Kältemittelkompressor nach Anspruch 1 , dadurch gekennzeichnet, daß in einer der Stellungen mit dem Einstellteil (66) eine Verbindung zwischen einem äußeren Sauggasanschluß (84) und dem Kühlkanalanschluß (34) und in einer anderen der Stellungen mit dem Einstellteil (70) eine Verbindung zwischen dem Sauggasanschluß (84) und dem Ansauganschluß (44) herstellbar sind. 2. Refrigerant compressor according to claim 1, characterized in that in one of the positions with the adjusting part (66) a connection between an outer suction gas connection (84) and the cooling channel connection (34) and in another of the positions with the adjusting part (70) a connection can be produced between the suction gas connection (84) and the suction connection (44).
3. Kältemittelkompressor nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß das Einstellteil (70) in um eine Symmetrieachse (72) des Sauggasanschlusses (84) gedrehten Stellungen in die Aufnahme (66) einsetzbar ist.3. A refrigerant compressor according to claim 1 or 2, characterized in that the adjusting part (70) can be inserted into the receptacle (66) in positions rotated about an axis of symmetry (72) of the suction gas connection (84).
4. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Einstellteil (70) über eine äußere Öffnung (71) der Anschlußeinheit (32) in die Aufnahme (66) einsetzbar ist.4. Refrigerant compressor according to one of the preceding claims, characterized in that the adjusting part (70) via an outer opening (71) of the connection unit (32) can be used in the receptacle (66).
5. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Aufnahme (66) einen Innenraum (68) aufweist, in welchen der Kühlkanalanschluß (34) und der Ansauganschluß (44) münden und daß in jeder der Stellungen des Einstellteils (70) entweder der Kühlkanalanschluß (34) oder der Ansauganschluß (44) abdeckbar ist.5. Refrigerant compressor according to one of the preceding claims, characterized in that the receptacle (66) has an interior (68) in which the cooling duct connection (34) and the suction connection (44) open and in that in each of the positions of the adjusting part (70) either the cooling duct connection (34) or the suction connection (44) can be covered.
6. Kältemittelkompressor nach Anspruch 5, dadurch gekennzeichnet, daß der Innenraum (68) der Aufnahme (66) eine ungefähr zylindrische Form aufweist.6. A refrigerant compressor according to claim 5, characterized in that the interior (68) of the receptacle (66) has an approximately cylindrical shape.
7. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Innenraum (68) der Aufnahme (66) sich als Ausnehmung in eine Wand (60) hinein erstreckt, welche den Kühlkanal (36) und den Ansaugkanal (46) voneinander trennt.7. A refrigerant compressor according to one of the preceding claims, characterized in that the interior (68) of the receptacle (66) extends as a recess into a wall (60) which separates the cooling duct (36) and the suction duct (46).
8. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Einstellteil (70) in den Innenraum (66) einsetzbar ist. 8. Refrigerant compressor according to one of the preceding claims, characterized in that the adjusting part (70) in the interior (66) can be used.
9. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Einstellteil (70) ein Sauggasfilter (86) aufnimmt.9. Refrigerant compressor according to one of the preceding claims, characterized in that the adjusting part (70) receives a suction gas filter (86).
10. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Einstellteil (70),einen Abdeckkörper (74) aufweist, mit welchem entweder der Kühlkanalanschluß ( 34 ) oder den Ansauganschluß (44) verschließbar ist.10. A refrigerant compressor according to one of the preceding claims, characterized in that the adjusting part (70) has a cover body (74) with which either the cooling channel connection (34) or the suction connection (44) can be closed.
11. Kältemittelkompressor nach Anspruch 10, dadurch gekennzeichnet, daß der Abdeckkörper (74) eine ungefähr halbzylindrische äußere Form aufweist.11. A refrigerant compressor according to claim 10, characterized in that the cover body (74) has an approximately semi-cylindrical outer shape.
12. Kältemittelkompressor nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß an dem Einstellteil (70) eine Flanschplatte (76) angeordnet ist, welche auf einen Anschlußflansch (92) der Anschlußeinheit (32) auflegbar ist.12. Refrigerant compressor according to one of the preceding claims, characterized in that a flange plate (76) is arranged on the adjusting part (70), which can be placed on a connecting flange (92) of the connecting unit (32).
13. Kältemittelkompressor nach Anspruch 12, dadurch gekennzeichnet, daß auf der Flanschplatte (76) das Sauggasabsperrventil (30) montierbar ist.13. A refrigerant compressor according to claim 12, characterized in that the suction gas shut-off valve (30) can be mounted on the flange plate (76).
14. Kältemittelkompressor nach Anspruch 12 oder 13, dadurch gekennzeichnet, daß die Flanschplatte (76) auf einer Seite des Einstellteils ( 70 ) eine andere Form aufweist als auf der gegenüberliegenden Seite. 14. A refrigerant compressor according to claim 12 or 13, characterized in that the flange plate (76) on one side of the adjusting part (70) has a different shape than on the opposite side.
15. Kältemittelkompressor nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, daß die Flanschplatte (76) und das fest an dieser angeordnete Einstellteil ( 70 ) in zwei jeweils um 180° gegeneinander gedrehten Stellungen an der Aufnahme (66) montierbar sind. 15. Refrigerant compressor according to one of claims 12 to 14, characterized in that the flange plate (76) and the fixedly arranged on this adjusting part (70) in two rotated by 180 ° positions on the receptacle (66) can be mounted.
EP98934981A 1997-06-25 1998-06-19 Refrigerant compressor Expired - Lifetime EP0920587B1 (en)

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DE19726943A1 (en) 1999-01-14
DK0920587T3 (en) 2003-08-04
ES2194332T3 (en) 2003-11-16
CA2263931C (en) 2007-03-13
DE19726943C2 (en) 2000-03-23
WO1999000600A1 (en) 1999-01-07
US6131406A (en) 2000-10-17
CA2263931A1 (en) 1999-01-07
DE59807951D1 (en) 2003-05-22
EP0920587B1 (en) 2003-04-16

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