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EP1705437A1 - Oil supply method for an air conditioner compressor - Google Patents

Oil supply method for an air conditioner compressor Download PDF

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Publication number
EP1705437A1
EP1705437A1 EP05405260A EP05405260A EP1705437A1 EP 1705437 A1 EP1705437 A1 EP 1705437A1 EP 05405260 A EP05405260 A EP 05405260A EP 05405260 A EP05405260 A EP 05405260A EP 1705437 A1 EP1705437 A1 EP 1705437A1
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EP
European Patent Office
Prior art keywords
oil
compressor
storage space
oil storage
channel
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Withdrawn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
EP05405260A
Other languages
German (de)
French (fr)
Inventor
Peter Prof.Dr. Ing. Kuhn
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.)
Obrist Engineering GmbH
ixetic Bad Homburg GmbH
Visteon Global Technologies Inc
Original Assignee
Obrist Engineering GmbH
LuK Fahrzeug Hydraulik GmbH and Co KG
Visteon Global Technologies Inc
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 Obrist Engineering GmbH, LuK Fahrzeug Hydraulik GmbH and Co KG, Visteon Global Technologies Inc filed Critical Obrist Engineering GmbH
Priority to EP05405260A priority Critical patent/EP1705437A1/en
Publication of EP1705437A1 publication Critical patent/EP1705437A1/en
Withdrawn legal-status Critical Current

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    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0016—Ejectors for creating an oil recirculation
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/02—Centrifugal separation of gas, liquid or oil
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators

Definitions

  • the invention relates to a method for supplying oil to the compressor of an air conditioner.
  • the invention is based on the object, in particular for a reciprocating compressor with a constant stroke, for example according to the not vorverred parallel patent application EP 04405737.0 to find suitable method for its uniform supply of lubricating oil and which is adapted to keep the circulating current of the working medium of the air conditioner circulating constant amount of oil to an optimal, small size.
  • the illustrated device 1 has a two superimposed spaces enclosing, designed for pressures of CO 2 -Air conditioning, solid housing 2, of which the upper forms a cyclone chamber 3 and the lower an oil reservoir 4.
  • the housing 2 of the device 1 may also be enclosed in suction-side arrangement in the housing of a compressor, not shown, that the lower portion of the compressor housing acts as an oil reservoir and a closed oil reservoir 4 according to the illustrated embodiment of Invention is unnecessary.
  • the cyclone chamber 3 is formed by a preferably horizontally extending bore 5 and encloses coaxially one of the outflow serving central channel 6. This is provided as a bore in a massive lateral closure body 7 and is in a subsequent to this and projecting into the cyclone chamber 3 pipe socket. 8 continued.
  • the cylindrical outer surface 9 of the closure body 7 is fitted in a coaxial with the bore 5 receiving bore 10 of the housing 2 and a 0-ring 11 takes over the additional sealing of the cyclone chamber third
  • the oil drain 20 expediently opens in a leading to the bottom of the compressor housing channel, so that contact with moving parts of the compressor drive is prevented and a spin-back of Oil in the suction chamber of the compressor and thus a quantity uncontrolled oil supply is excluded.
  • an oil suction pipe 22 leads upwards and is connected via a radial bore 23 and a nozzle bore 24 adjoining this in the closure body 7 with the central channel 6 of the cyclone chamber 3.
  • the negative pressure formed by the outflow from the cyclone chamber 3 in the central channel 6 causes an ejector-like extraction of oil from the oil reservoir 4 via the oil suction tube 22.
  • a pressure equalization channel is provided between the oil reservoir 4 and an extended outflow region 27 of the central channel 6 through mutually equiaxed bores 28 and 29 formed in the wall of the oil storage space and in the closure body 7.
  • an oil separator 30 is provided in the oil reservoir 4 before the pressure equalization channel 28,29, in which labyrinthine deflections are imposed on a gas flow.
  • the suction opening 25 of the ⁇ lsaugrohres 22 is located at a distance above the bottom 26 of the oil storage chamber 4, so that suction of dirt particles is prevented, which is separated in the cyclone chamber 3 and passed through the oil drain 20 into the oil reservoir 4.
  • the amount of uniformly recycled in the circulation of the operating medium from the oil reservoir 4 oil be determined by a suitable choice of the diameter of the nozzle bore 24, so that by trial runs of the air conditioning, the oil supply to the compressor to an optimum Value can be set.
  • the smallest possible proportion of oil in the operating medium flow is to be set in order to prevent an excessively large proportion of oil from impairing the efficiency of the air conditioning system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

The method involves separating oil from a gaseous phase of a working medium and providing it to an oil storage space (4). The oil is then promoted by an ejector-like suction effect of a circulation system of the air conditioning system to a compressor. The promotion is made to the compressor by a mix-limiting throttle point (24), whose flow cross section is adapted to the lubrication need of the compressor. The separation takes place via a cyclone current.

Description

Die Erfindung betrifft ein Verfahren zur Ölversorgung des Kompressors einer Klimaanlage.The invention relates to a method for supplying oil to the compressor of an air conditioner.

Für die Phasentrennung in Klimaanlagen ist durch die DE 10058513 ein Sammler mit einem Zentrifugalabscheider bekannt, in dem sich die flüssige Phase des Arbeitsmediums einschliesslich Öl am Boden des Sammlers ansammelt. Um zu verhindern, dass dabei das den Kompressor durchströmende Arbeitsmedium aus diesem zunehmend Öl entfernt, müssen Massnahmen getroffen werden, um Öl zu ihm zurückzuführen. Entsprechend der EP 0742116 erfolgt dies, angepasst an die Betriebsweise eines Taumelscheibenkompressors, entweder durch einen Ölabscheider, aus dessen Ölspeicherraum ein durch den Triebraum des Kompressors geführter Teilstrom abgesaugt wird oder durch einen hochdruckseitig angeordneten Ölabscheider aus dem ein Ölkreislauf abgezweigt ist, um das Öl mit Überdruck über ein Ventil in den Triebraum zurückzuführen.For the phase separation in air conditioners is by the DE 10058513 a collector with a Zentrifugalabscheider known in which the liquid phase of the working medium including oil accumulates at the bottom of the collector. In order to prevent that the working medium passing through the compressor from this increasingly removes oil, measures must be taken to return oil to him. According to the EP 0742116 this is done, adapted to the operation of a swash plate type compressor, either by an oil separator, from the oil storage space sucked through the drive chamber of the compressor partial flow is sucked or branched off by a high pressure side arranged oil separator from an oil circuit to the oil with overpressure via a valve in attributed to the drive room.

Der Erfindung liegt die Aufgabe zugrunde, ein insbesondere für einen Kolbenkompressor mit konstanter Hubweite, z.B. entsprechend der nicht vorveröffentlichen parallelen Patentanmeldung EP 04405737.0 , geeignetes Verfahren zu seiner gleichmässigen Versorgung mit Schmieröl zu finden und das geeignet ist, die im Kreislaufstrom des Arbeitsmediums der Klimaanlage zirkulierende Ölmenge konstant auf einer optimalen, geringen Grösse zu halten.The invention is based on the object, in particular for a reciprocating compressor with a constant stroke, for example according to the not vorveröffentlichen parallel patent application EP 04405737.0 to find suitable method for its uniform supply of lubricating oil and which is adapted to keep the circulating current of the working medium of the air conditioner circulating constant amount of oil to an optimal, small size.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäss aufgrund der kennzeichnenden Merkmale des Patentanspruchs 1. Zur Ausführung dieses Verfahrens wird weiterhin erfindungsgemäss eine Vorrichtung mit den Merkmalen des Patentanspruchs 5 vorgeschlagen.The solution of this object is achieved according to the invention due to the characterizing features of claim 1. For carrying out this method, further according to the invention a device with the features of claim 5 is proposed.

Im Folgenden wird die Erfindung anhand eines zeichnerisch dargestellten Ausführungsbeispieles näher erläutert.In the following the invention will be explained in more detail with reference to an exemplary embodiment shown in the drawing.

Die Zeichnung zeigt in

  • Fig.1 einen entlang der Linie B-B der Fig.2 geführten Längsschnitt durch die Vorrichtung zur Ausführung des Verfahrens und in
  • Fig.2 einen entlang der Linie A-A der Fig.1 geführten Querschnitt durch die Vorrichtung nach Fig.1.
The drawing shows in
  • Figure 1 shows a along the line BB of Figure 2 guided longitudinal section through the apparatus for carrying out the method and in
  • 1 shows a guided along the line AA of Figure 1 cross-section through the apparatus of Figure 1.

Die dargestellte Vorrichtung 1 hat ein zwei übereinander angeordnete Räume einschliessendes, für Drücke einer CO2-Klimaanlage ausgelegtes, massives Gehäuse 2, von denen der obere eine Zyklonkammer 3 und der untere einen Ölspeicherraum 4 bildet.The illustrated device 1 has a two superimposed spaces enclosing, designed for pressures of CO 2 -Air conditioning, solid housing 2, of which the upper forms a cyclone chamber 3 and the lower an oil reservoir 4.

Anstatt seiner separaten Anordnung, vorzugsweise oberhalb eines Kompressorgehäuses, kann das Gehäuse 2 der Vorrichtung 1 auch in saugseitiger Anordnung im Gehäuse eines nicht dargestellten Kompressors derart eingeschlossen sein, dass der untere Bereich des Kompressorgehäuses als Ölspeicherraum wirkt und ein geschlossener Ölspeicherraum 4 entsprechend dem dargestellten Ausführungsbeispiel der Erfindung überflüssig wird.Instead of its separate arrangement, preferably above a compressor housing, the housing 2 of the device 1 may also be enclosed in suction-side arrangement in the housing of a compressor, not shown, that the lower portion of the compressor housing acts as an oil reservoir and a closed oil reservoir 4 according to the illustrated embodiment of Invention is unnecessary.

Die Zyklonkammer 3 ist durch eine vorzugsweise horizontal verlaufende Bohrung 5 gebildet und umschliesst gleichachsig einen der Abströmung dienenden Zentralkanal 6. Dieser ist als Bohrung in einem massiven seitlichen Verschlusskörpers 7 vorgesehen und setzt sich in einem sich an diesen anschliessenden und in die Zyklonkammer 3 ragenden Rohrstutzen 8 fort. Die zylindrische Aussenfläche 9 des Verschlusskörpers 7 ist in einer mit der Bohrung 5 gleichachsigen Aufnahmebohrung 10 des Gehäuses 2 eingepasst ist und ein 0-Ring 11 übernimmt die zusätzliche Abdichtung der Zyklonkammer 3.The cyclone chamber 3 is formed by a preferably horizontally extending bore 5 and encloses coaxially one of the outflow serving central channel 6. This is provided as a bore in a massive lateral closure body 7 and is in a subsequent to this and projecting into the cyclone chamber 3 pipe socket. 8 continued. The cylindrical outer surface 9 of the closure body 7 is fitted in a coaxial with the bore 5 receiving bore 10 of the housing 2 and a 0-ring 11 takes over the additional sealing of the cyclone chamber third

Die Zuströmung in die Zyklonkammer 3 erfolgt über eine tangential in diese einmündende Bohrung 12 in der oberen Gehäusewand 13, die mit der Anschlussbohrung 14 eines Rohrkupplungskörpers 15 abgedichtet in Verbindung steht. Die Abdichtung erfolgt hier durch eine Flachdichtung 16, die in einem hülsenförmigen Ringhalter 17 an der Stirnseite eines Rohrzapfens 18 des Rohrkupplungskörpers 15 gehalten ist und mittels dessen Spannschraube 19 dichtend angepresst ist.The inflow into the cyclone chamber 3 via a tangentially opening into this bore 12 in the upper housing wall 13 which is sealed with the connection bore 14 of a pipe coupling body 15 in communication. The sealing takes place here by a flat gasket 16, which is held in a sleeve-shaped ring holder 17 on the end face of a pipe spigot 18 of the pipe coupling body 15 and by means of which clamping screw 19 is pressed sealingly.

Das sich durch die rotierende Zentrifugalströmung in der Zyklonkammer 3 an deren Wand ansammelnde Öl fliesst über eine durch eine Radialbohrung gebildeten Ölablass 20 zu dem Ölspeicherraum 4 nach unten ab.The accumulating by the rotating centrifugal flow in the cyclone chamber 3 on the wall of oil flows through an oil drain formed by a radial bore 20 to the oil reservoir 4 down from.

Bei der zuvor genannten, nicht dargestellten Anordnung der Vorrichtung 1 bzw. der Zyklonkammer 3 in einem Kompressorgehäuse, mündet der Ölablass 20 zweckmässig in einem zum Boden des Kompressorgehäuses führenden Kanal, so dass ein Kontakt mit sich bewegenden Teilen des Kompressorantriebs verhindert wird und ein Zurückschleudern von Öl in den Saugraum des Kompressors und damit eine mengenmässig unkontrollierte Ölzufuhr ausgeschlossen ist.In the aforementioned, not shown arrangement of the device 1 and the cyclone chamber 3 in a compressor housing, the oil drain 20 expediently opens in a leading to the bottom of the compressor housing channel, so that contact with moving parts of the compressor drive is prevented and a spin-back of Oil in the suction chamber of the compressor and thus a quantity uncontrolled oil supply is excluded.

Vom Bodenbereich 21 des Ölspeicherraumes 4 führt ein Ölsaugrohr 22 nach oben und ist über eine Radialbohrung 23 und eine sich an diese anschliessende Düsenbohrung 24 im Verschlusskörper 7 mit dem Zentralkanal 6 der Zyklonkammer 3 verbunden. Der sich durch die Abströmung aus der Zyklonkammer 3 im Zentralkanal 6 ausbildende Unterdruck bewirkt über das Ölsaugrohr 22 ein ejektorartiges Absaugen von Öl aus dem Ölspeicherraum 4.From the bottom portion 21 of the oil storage chamber 4, an oil suction pipe 22 leads upwards and is connected via a radial bore 23 and a nozzle bore 24 adjoining this in the closure body 7 with the central channel 6 of the cyclone chamber 3. The negative pressure formed by the outflow from the cyclone chamber 3 in the central channel 6 causes an ejector-like extraction of oil from the oil reservoir 4 via the oil suction tube 22.

Damit das Einströmen von Öl durch den Ölablass 20 in den Ölspeicherraum 4 und das ejektorartige Absaugen durch die Düsenbohrung 24 nicht durch unkontrollierte Druckverhältnisse im Ölspeicherraum 4 beeinflusst werden, ist zwischen dem Ölspeicherraum 4 und einem erweiterten Abströmbereich 27 des Zentralkanals 6 ein Druckausgleichskanal vorgesehen, der durch zueinander gleichachsige Bohrungen 28 und 29 in der Wand des Ölspeicherraumes und im Verschlusskörper 7 gebildet ist.Thus, the influx of oil through the oil drain 20 into the oil reservoir 4 and the ejector-like suction through the nozzle bore 24 are not affected by uncontrolled pressure conditions in the oil reservoir 4, a pressure equalization channel is provided between the oil reservoir 4 and an extended outflow region 27 of the central channel 6 through mutually equiaxed bores 28 and 29 formed in the wall of the oil storage space and in the closure body 7.

Um zu verhindern, dass durch den Druckausgleichskanal 28,29 im Gas schwebende Ölpartikel unkontrolliert den Ölspeicherraum 4 verlassen, ist im Ölspeicherraum 4 vor dem Druckausgleichskanal 28,29 ein Ölabscheider 30 vorgesehen, in dem einer Gasströmung labyrinthartige Umlenkungen aufgezwungen werden.In order to prevent uncontrolled leaving the oil storage chamber 4 through the pressure equalization channel 28,29 in the gas, an oil separator 30 is provided in the oil reservoir 4 before the pressure equalization channel 28,29, in which labyrinthine deflections are imposed on a gas flow.

Die Ansaugöffnung 25 des Ölsaugrohres 22 befindet sich in Abstand über dem Boden 26 des Ölspeicherraumes 4, so dass ein Ansaugen von Schmutzpartikeln verhindert wird, die in der Zyklonkammer 3 abgetrennt und über den Ölablass 20 in den Ölspeicherraum 4 gelangt sind.The suction opening 25 of the Ölsaugrohres 22 is located at a distance above the bottom 26 of the oil storage chamber 4, so that suction of dirt particles is prevented, which is separated in the cyclone chamber 3 and passed through the oil drain 20 into the oil reservoir 4.

Die Menge des gleichmässig in den Kreislauf des Betriebsmediums aus dem Ölspeicherraum 4 zurückgeführten Öls kann, unabhängig von der dort gespeicherten Ölmenge, durch eine geeignete Auswahl des Durchmessers der Düsenbohrung 24 bestimmt werden, so dass durch Probeläufe der Klimaanlage die Ölversorgung des Kompressors sich auf einen optimalen Wert einstellen lässt. Dabei ist ein möglichst kleiner Ölanteil im Betriebsmittelstrom einzustellen, um zu verhindern, dass ein zu grosser Ölanteil den Wirkungsgrad der Klimaanlage verschlechtert. Für eine Veränderung der Grösse der Düsenbohrung 24 und damit der dem Kompressor zugeführten Ölmenge kann diese in einem nicht dargestellten, auswechselbaren Düseneinsatz vorgesehen sein.The amount of uniformly recycled in the circulation of the operating medium from the oil reservoir 4 oil, regardless of the amount of oil stored there, be determined by a suitable choice of the diameter of the nozzle bore 24, so that by trial runs of the air conditioning, the oil supply to the compressor to an optimum Value can be set. In this case, the smallest possible proportion of oil in the operating medium flow is to be set in order to prevent an excessively large proportion of oil from impairing the efficiency of the air conditioning system. For a change in the size of the nozzle bore 24 and thus the amount of oil supplied to the compressor this can be provided in a non-illustrated, replaceable nozzle insert.

Claims (12)

Verfahren zur Ölversorgung des Kompressors einer Klimaanlage, dadurch gekennzeichnet, dass Öl aus der Gasphase des Arbeitsmediums abgetrennt und zu einem Ölspeicherraum (4) geführt wird, aus dem es durch die ejektorartige Saugwirkung einer saugseitigen Strömung des Kreislaufsystems der Klimaanlage zum Kompressors gefördert wird.Method for oil supply of the compressor of an air conditioner, characterized in that oil is separated from the gas phase of the working medium and fed to an oil storage space (4), from which it is promoted by the ejector-like suction of a suction-side flow of the air conditioning system to the compressor. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Förderung zum Kompressor über eine mengenbegrenzende Drosselstelle (24) erfolgt, deren Durchströmungsquerschnitt dem Schmierbedarf des Kompressors angepasst ist.A method according to claim 1, characterized in that the delivery to the compressor via a quantity-limiting throttle point (24), whose flow cross-section is adapted to the lubricant requirement of the compressor. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abtrennung von Öl aus der Gasphase durch eine Zyklonströmung erfolgt.A method according to claim 1 or 2, characterized in that the separation of oil from the gas phase is carried out by a cyclone flow. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zur Abscheidung von Feststoffpartikeln das Öl aus dem Ölspeicherraum (4) mit Abstand von dessen Boden (26) angesaugt wird.A method according to claim 1, characterized in that for the separation of solid particles, the oil from the oil storage space (4) with a distance from the bottom (26) is sucked. Vorrichtung zur Ölversorgung des Kompressors einer Klimaanlage in Ausführung des Verfahrens nach Anspruch 1, gekennzeichnet durch einen für die Anordnung in einem Saugkanal des Kompressors bestimmten Zyklonabscheider, einen aus der Zyklonkammer (3) des Zyklonabscheiders zu einem Ölspeicherraum (4) führenden Ölablass (20) und eine aus dem Ölspeicherraum (4) in eine Gasleitung (6) mündenden Ölsaugrohr (22), so dass Öl ejektorartig in die Gasleitung zurückgesaugt wird.Apparatus for supplying oil to the compressor of an air conditioning system in the method according to claim 1, characterized by a cyclone separator intended for the arrangement in a suction channel of the compressor, an oil drain (20) leading from the cyclone chamber (3) of the cyclone separator to an oil storage space (4) a Ölsaugrohr (22) opening out of the oil storage space (4) into a gas line (6), then that oil is sucked ejektorartig back into the gas line. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Achse der Zyklonkammer (3) und eines Zentralkanals (6) des Zyklonabscheiders (3) horizontal gerichtet sind und der Ölablass (20) sowie das Ölsaugrohr (22), bezogen auf diese Achse, radial gerichtet sind.Apparatus according to claim 5, characterized in that the axis of the cyclone chamber (3) and a central channel (6) of the cyclone (3) are directed horizontally and the oil drain (20) and the Ölsaugrohr (22), with respect to this axis, directed radially are. Vorrichtung nach Anspruch 5 und 6, dadurch gekennzeichnet, dass die Zyklonkammer (3) durch eine Sacklochbohrung 5 gebildet ist, in der ein Verschlusskörper (7) mit einem angeformten Rohrstutzen (8) dichtend eingesetzt ist, wobei der Rohrstutzen (8) achsgleich in die Abscheidekammer (3) hineinragt und ein Zentralkanal (6) sich durch den Rohrstutzen (8) und den Verschlusskörper (7) erstreckt.Apparatus according to claim 5 and 6, characterized in that the cyclone chamber (3) is formed by a blind hole 5, in which a closure body (7) with a molded pipe socket (8) is sealingly inserted, wherein the pipe socket (8) coaxially in the Abscheidekammer (3) protrudes and a central channel (6) extends through the pipe socket (8) and the closure body (7). Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Zentralkanal (69 innerhalb des Verschlusskörpers (7) eine Durchmesservergrösserung aufweist, wobei das Ölsaugrohr (22) mit dem engeren Teil und ein Druckausgleichskanal (28,29) des Ölspeicherraumes (4) mit dem weiteren Teil des Zentralkanals (6) verbunden ist.Apparatus according to claim 7, characterized in that the central channel (69 within the closure body (7) has an increase in diameter, wherein the Ölsaugrohr (22) with the narrower part and a pressure equalization channel (28,29) of the oil storage space (4) with the other part the central channel (6) is connected. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass im Ölspeicherraum (4) vor dem Druckausgleichskanal (28,29) ein Ölabscheider (30) mit labyrinthartigen Umlenkungen vorgesehen ist.Apparatus according to claim 8, characterized in that in the oil storage space (4) in front of the pressure equalization channel (28,29) an oil separator (30) is provided with labyrinth-like deflections. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass in dem das Ölsaugrohr (22)aufweisenden Ölrückführungskanal ein im Durchmesser an den Schmier-ölbedarf eines Kompressors angepasster Düsenkanal (24) vorgesehen ist.Apparatus according to claim 5, characterized in that in the oil suction pipe (22) having oil return passage in the diameter of the lubricating oil requirement a compressor adapted nozzle channel (24) is provided. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Ansaugöffnung (25) der Ölsaugrohres (22) mit einem das Rücksaugen von Feststoffpartikeln verhindernden Abstand vom Boden (26) des Ölspeicherraumes (4) angeordnet ist.Apparatus according to claim 5, characterized in that the suction opening (25) of the Ölsaugrohres (22) with a sucking back of solid particles preventing distance from the bottom (26) of the oil storage space (4) is arranged. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Ölspeicherraum (4) durch einen Gehäusebereich eines Kompressors gebildet ist und der Ölablass (20)kanalförmig mit diesem Gehäusebereich verbunden ist.Apparatus according to claim 5, characterized in that the oil storage space (4) is formed by a housing portion of a compressor and the oil drain (20) is channel-shaped connected to this housing portion.
EP05405260A 2005-03-23 2005-03-23 Oil supply method for an air conditioner compressor Withdrawn EP1705437A1 (en)

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EP05405260A EP1705437A1 (en) 2005-03-23 2005-03-23 Oil supply method for an air conditioner compressor

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EP05405260A EP1705437A1 (en) 2005-03-23 2005-03-23 Oil supply method for an air conditioner compressor

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965607A1 (en) * 2010-09-30 2012-04-06 Valeo Thermal Sys Japan Co Device for separating lubricant and cooling fluid to be received by air conditioning compressor, has tank and chamber partitioned by separator into separation chamber and evacuation device, where tank is adjacent to evacuation device
CN104266419A (en) * 2014-10-25 2015-01-07 哈尔滨兴旺制冷设备有限责任公司 Injection streaming cooling oil separator and method for cooling oil and separating oil
US9970695B2 (en) 2011-07-19 2018-05-15 Carrier Corporation Oil compensation in a refrigeration circuit
US10288068B2 (en) 2014-04-29 2019-05-14 Carrier Corporation Screw compressor having oil separator and water chilling unit
US11435116B2 (en) 2017-09-25 2022-09-06 Johnson Controls Tyco IP Holdings LLP Two step oil motive eductor system

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965607A1 (en) * 2010-09-30 2012-04-06 Valeo Thermal Sys Japan Co Device for separating lubricant and cooling fluid to be received by air conditioning compressor, has tank and chamber partitioned by separator into separation chamber and evacuation device, where tank is adjacent to evacuation device
US9970695B2 (en) 2011-07-19 2018-05-15 Carrier Corporation Oil compensation in a refrigeration circuit
US10288068B2 (en) 2014-04-29 2019-05-14 Carrier Corporation Screw compressor having oil separator and water chilling unit
CN104266419A (en) * 2014-10-25 2015-01-07 哈尔滨兴旺制冷设备有限责任公司 Injection streaming cooling oil separator and method for cooling oil and separating oil
CN104266419B (en) * 2014-10-25 2019-01-25 哈尔滨兴旺制冷设备有限责任公司 Jetting type cooling oil oil eliminator and cooling oil separate oily method
US11435116B2 (en) 2017-09-25 2022-09-06 Johnson Controls Tyco IP Holdings LLP Two step oil motive eductor system

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