EP2796813A1 - Refrigeration and/or freezer device - Google Patents
Refrigeration and/or freezer device Download PDFInfo
- Publication number
- EP2796813A1 EP2796813A1 EP14165381.6A EP14165381A EP2796813A1 EP 2796813 A1 EP2796813 A1 EP 2796813A1 EP 14165381 A EP14165381 A EP 14165381A EP 2796813 A1 EP2796813 A1 EP 2796813A1
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- EP
- European Patent Office
- Prior art keywords
- capillary
- suction
- lines
- suction line
- suction lines
- 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- Withdrawn
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Classifications
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
- F25B2400/05—Compression system with heat exchange between particular parts of the system
- F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
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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
- 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
- F25B2400/05—Compression system with heat exchange between particular parts of the system
- F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
Definitions
- the present invention relates to a refrigerator and / or freezer with at least one refrigerant circuit having at least one condenser, at least two evaporators and at least one compressor, wherein there is at least one capillary between the Ver-liquid and the evaporator.
- the present invention has the object of developing a refrigerator and / or freezer of the type mentioned in such a way that it works very efficiently and has a relatively simple structure.
- a refrigerator and / or freezer with the features of claim 1. Thereafter, it is provided that at least two suction lines are arranged between the evaporators and the compressor and that the at least one capillary is arranged relative to both suction lines such that a heat transfer from the at least one capillary to the suction lines.
- the compressor may have one or more valves, by means of which the suction lines can be shut off or released, so that, depending on the valve position, a flow through the evaporator takes place or is omitted.
- the at least one valve is integrated in the compressor.
- the refrigerant circuit otherwise has no valve, which brings cost advantages and simplification, since solder joints for mounting the solenoid valve in the piping system of the refrigerant circuit omitted.
- the plurality of evaporators may be connected in parallel or in such a way that, depending on the valve position, both evaporators are flowed through in succession by refrigerant, or only the one arranged upstream.
- the latter is preferably a freezer evaporator, whereas the other evaporator is preferably formed by a refrigerated part evaporator.
- An intensive heat transfer results when the at least one capillary is wound around the suction lines at least in sections.
- the at least one capillary is located at least in sections between the suction lines.
- the suction lines can be directly adjacent to each other. In this case, above and below the contact point of the suction lines areas may arise in which the at least one capillary can be arranged.
- the at least one capillary can extend at least in regions parallel to the suction line (s).
- the at least one capillary is offset, e.g. is arranged next to, above or below the area of least distance. It is also conceivable that the at least one capillary is located exactly between the two suction lines, i. is arranged on the center of the suction lines connecting line.
- the at least one capillary is arranged relative to the two suction lines such that a heat transfer takes place first from the capillary to a suction line and then from the capillary to the other suction line.
- heat transfer occurs sequentially, i. first from the capillary to one of the suction lines and then to the other of the suction lines. This makes it possible to achieve a particularly intense heat input into the suction line, in which this is required.
- At least two capillaries are provided, which are arranged relative to the two suction lines such that a heat transfer takes place first from the capillaries to a suction line and then from the capillaries to the other suction line.
- the at least one capillary is directly connected to the suction line (s).
- the at least one capillary can be soldered to the at least one suction line or, for example, fixed thereto by means of a shrinking tube or the like.
- the at least one capillary flows through the refrigerant in the cross, counter or direct current to the at least one suction line.
- FIG. 1 shows by the reference numeral 12, 14, two suction pipes, which from two evaporators each to a common compressor 10 (see. FIG. 2 ) to lead.
- the reference numeral 200 designates a capillary which is arranged upstream of the evaporator and which is associated, for example, with two evaporators, ie which is flowed through by refrigerant both when one evaporator is in operation and when the other evaporator is in operation.
- a plurality of capillaries 200, 210 may be provided, one of which, for example, is associated with one evaporator.
- the one or more capillaries 200 are wound around the two suction lines 12, 14.
- FIG. 2 shows an embodiment in which the capillary tube 200 is guided centrally in the "gusset region" between the suction tubes 12, 14, which lie directly against each other.
- the suction lines 12, 14 extend from the evaporators 30, 40 to the compressor 10. Downstream of the compressor 10 is a condenser, to which the capillary 200 is connected.
- FIG. 3 shows an embodiment in which two capillary tubes 200, 210 are guided centrally in the "gusset areas" between the suction tubes 12, 14, with one capillary tube 200 at the top and the other capillary tube 210 at the bottom.
- FIG. 4 shows an embodiment in which first an internal heat exchange between the capillary tube 200 and the suction line 12 and then between the capillary tube 200 and the suction line 14 or vice versa.
- FIG. 5 finally shows a FIG. 4 essentially corresponding embodiment, in which, however, not only one capillary but two capillaries 200, 210 are provided. These are arranged so that first of all a heat transfer from both capillaries 200, 210 takes place on the suction line 12 and then on the suction line 14 or vice versa.
- a capillary 200 it is also conceivable for a capillary 200 to be in heat-transferring contact first with the suction line 12 and then with the suction line 14, and the capillary 210, conversely, first with the suction line 14 and then with the suction line 12 in heat-transferring contact.
- first and “then” etc. mean that the refrigerant flowing in the capillaries emits heat first to a suction line and then to the other suction line.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Die vorliegende Erfindung betrifft ein Kühl- und/oder Gefriergerät mit wenigstens einem Kältemittelkreislauf, der zumindest einen Verflüssiger, zumindest zwei Verdampfer und zumindest einen Kompressor aufweist, wobei sich zwischen dem Verflüssiger und dem Verdampfer wenigstens eine Kapillare befindet und wobei zwischen den Verdampfern und dem Kompressor wenigstens zwei Saugleitungen angeordnet sind und die wenigstens eine Kapillare relativ zu beiden Saugleitungen derart angeordnet ist, dass ein Wärmeübergang von der wenigstens einen Kapillare zu beiden Saugleitungen erfolgt.The present invention relates to a refrigerator and / or freezer with at least one refrigerant circuit having at least one condenser, at least two evaporators and at least one compressor, wherein between the condenser and the evaporator is at least one capillary and wherein between the evaporators and the compressor at least two suction lines are arranged and the at least one capillary is arranged relative to both suction lines such that a heat transfer from the at least one capillary to both suction lines takes place.
Description
Die vorliegende Erfindung betrifft ein Kühl- und/oder Gefriergerät mit wenigstens einem Kältemittelkreislauf, der zumindest einen Verflüssiger, zumindest zwei Verdampfer und zumindest einen Kompressor aufweist, wobei sich zwischen dem Ver-flüssiger und dem Verdampfer wenigstens eine Kapillare befindet.The present invention relates to a refrigerator and / or freezer with at least one refrigerant circuit having at least one condenser, at least two evaporators and at least one compressor, wherein there is at least one capillary between the Ver-liquid and the evaporator.
Aus dem Stand der Technik ist es bekannt, die Kältemittelkreisläufe von Kühl- und/oder Gefriergeräten mit einem Kompressor, einen diesem nachgeschalteten Verflüssiger und einem diesem nachgeschalteten Verdampfer auszuführen. Von dem Verdampfer führt eine Saugleitung zurück zum Kompressor. Stromaufwärts des Verdampfers befindet sich eine Kapillare, in der das Kältemittel eine Druckminderung erfährt.From the prior art, it is known to carry out the refrigerant circuits of refrigerators and / or freezers with a compressor, a condenser downstream of this and a downstream evaporator. From the evaporator, a suction line leads back to the compressor. Upstream of the evaporator is a capillary, in which the refrigerant undergoes a pressure reduction.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Kühl- und/oder Gefriergerät der eingangs genannten Art dahingehend weiterzubilden, dass dieses besonders effizient arbeitet und einen vergleichsweise einfachen Aufbau aufweist.The present invention has the object of developing a refrigerator and / or freezer of the type mentioned in such a way that it works very efficiently and has a relatively simple structure.
Diese Aufgabe wird durch ein Kühl- und/oder Gefriergerät mit den Merkmalen des Anspruchs 1 gelöst. Danach ist vorgesehen, dass zwischen den Verdampfern und dem Kompressor wenigstens zwei Saugleitungen angeordnet sind und dass die wenigstens eine Kapillare relativ zu beiden Saugleitungen derart angeordnet ist, dass ein Wärmeübergang von der wenigstens einen Kapillare zu den Saugleitungen erfolgt.This object is achieved by a refrigerator and / or freezer with the features of claim 1. Thereafter, it is provided that at least two suction lines are arranged between the evaporators and the compressor and that the at least one capillary is arranged relative to both suction lines such that a heat transfer from the at least one capillary to the suction lines.
Erfindungsgemäß erstreckt sich zwischen den Verdampfern und dem Kompressor nicht eine Saugleitung, sondern wenigstens zwei Saugleitungen und vorzugsweise verläuft von jedem der Verdampfer eine Saugleitung zu dem Kompressor.According to the invention, there is not one suction line between the evaporators and the compressor, but at least two suction lines, and preferably one suction line from each of the evaporators extends to the compressor.
Der Kompressor kann ein oder mehrere Ventile aufweisen, mittels derer die Saugleitungen absperrbar oder freigebbar sind, so dass in Abhängigkeit der Ventilstellung eine Durchströmung der Verdampfer erfolgt oder unterbleibt. Vorzugsweise ist das wenigstens eine Ventil in den Kompressor integriert.The compressor may have one or more valves, by means of which the suction lines can be shut off or released, so that, depending on the valve position, a flow through the evaporator takes place or is omitted. Preferably, the at least one valve is integrated in the compressor.
Besonders bevorzugt ist es, wenn der Kältemittelkreislauf ansonsten über kein Ventil verfügt, was Kostenvorteile und eine Vereinfachung mit sich bringt, da Lötstellen zur Montage des Magnetventils im Leitungssystem des Kältemittelkreislaufes entfallen.It is particularly preferred if the refrigerant circuit otherwise has no valve, which brings cost advantages and simplification, since solder joints for mounting the solenoid valve in the piping system of the refrigerant circuit omitted.
Die mehreren Verdampfer können parallel oder derart geschaltet sein, dass je nach Ventilstellung beide Verdampfer nacheinander von Kältemittel durchströmt werden, oder nur der stromaufwärts angeordnete. Bei Letzterem handelt es sich vorzugsweise um einen Gefrierteilverdampfer, wohingegen der andere Verdampfer vorzugsweise durch einen Kühlteilverdampfer gebildet wird.The plurality of evaporators may be connected in parallel or in such a way that, depending on the valve position, both evaporators are flowed through in succession by refrigerant, or only the one arranged upstream. The latter is preferably a freezer evaporator, whereas the other evaporator is preferably formed by a refrigerated part evaporator.
Durch den Kontakt der wenigstens einen Kapillare mit beiden Saugleitungen wird ein Wärmeeintrag von der wenigstens einen Kapillare in beide Saugleitungen erreicht und die Wahrscheinlichkeit dafür, dass flüssiges Kältemittel durch die Saugleitungen in den Kompressor gelangt minimiert.By the contact of the at least one capillary with both suction lines, a heat input from the at least one capillary is achieved in both suction lines and minimizes the likelihood that liquid refrigerant passes through the suction lines in the compressor.
Ein intensiver Wärmeübergang ergibt sich, wenn die wenigstens eine Kapillare wenigstens abschnittsweise um die Saugleitungen herum gewickelt ist.An intensive heat transfer results when the at least one capillary is wound around the suction lines at least in sections.
Auch ist es denkbar, dass sich die wenigstens eine Kapillare wenigstens abschnittsweise zwischen den Saugleitungen befindet.It is also conceivable that the at least one capillary is located at least in sections between the suction lines.
Die Saugleitungen können unmittelbar aneinander liegen. Dabei können sich oberhalb und unterhalb der Kontaktstelle der Saugleitungen Bereiche ergeben, in denen die wenigstens eine Kapillare angeordnet sein kann.The suction lines can be directly adjacent to each other. In this case, above and below the contact point of the suction lines areas may arise in which the at least one capillary can be arranged.
Die wenigstens eine Kapillare kann sich wenigstens bereichsweise parallel zu der oder den Saugleitungen erstrecken.The at least one capillary can extend at least in regions parallel to the suction line (s).
Weiterhin kann vorgesehen sein, dass ein Bereich geringsten Abstandes zwischen den Saugleitungen vorliegt und dass die wenigstens eine Kapillare versetzt, z.B. neben, oberhalb oder unterhalb zu dem Bereich geringsten Abstandes angeordnet ist. Auch ist es denkbar, dass die wenigstens eine Kapillare genau zwischen den beiden Saugleitungen, d.h. auf der die Mittelpunkte der Saugleitungen verbindenden Linie angeordnet ist.Furthermore, it can be provided that there is a region of least distance between the suction lines and that the at least one capillary is offset, e.g. is arranged next to, above or below the area of least distance. It is also conceivable that the at least one capillary is located exactly between the two suction lines, i. is arranged on the center of the suction lines connecting line.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die wenigstens eine Kapillare relativ zu beiden Saugleitungen derart angeordnet ist, dass ein Wärmeübergang zunächst von der Kapillare zu einer Saugleitung und sodann von der Kapillare zu der anderen Saugleitung erfolgt. In diesem Fall erfolgt der Wärmeübergang sequentiell, d.h. zunächst von der Kapillare zu einer der Saugleitungen und dann zu der anderen der Saugleitungen. Dadurch ist es möglich, einen besonders intensiven Wärmeeintrag in die Saugleitung zu erreichen, in der dies erforderlich ist.In a further embodiment of the invention, it is provided that the at least one capillary is arranged relative to the two suction lines such that a heat transfer takes place first from the capillary to a suction line and then from the capillary to the other suction line. In this case, heat transfer occurs sequentially, i. first from the capillary to one of the suction lines and then to the other of the suction lines. This makes it possible to achieve a particularly intense heat input into the suction line, in which this is required.
Weiterhin kann vorgesehen sein, dass wenigstens zwei Kapillaren vorgesehen sind, die relativ zu beiden Saugleitungen derart angeordnet sind, dass ein Wärmeübergang zunächst von den Kapillaren zu einer Saugleitung und sodann von den Kapillaren zu der anderen Saugleitung erfolgt.Furthermore, it can be provided that at least two capillaries are provided, which are arranged relative to the two suction lines such that a heat transfer takes place first from the capillaries to a suction line and then from the capillaries to the other suction line.
Vorteilhaft ist es, wenn die wenigstens eine Kapillare unmittelbar mit der oder den Saugleitungen in Verbindung steht.It is advantageous if the at least one capillary is directly connected to the suction line (s).
Die wenigstens eine Kapillare kann mit der wenigstens einen Saugleitung verlötet sein oder beispielsweise mittels eines Schrumpfschlauches oder dergleichen an dieser fixiert sein.The at least one capillary can be soldered to the at least one suction line or, for example, fixed thereto by means of a shrinking tube or the like.
Denkbar ist es weiterhin, wenn die wenigstens eine Kapillare im Kreuz-, Gegenoder Gleichstrom zu der wenigstens einen Saugleitung von Kältemittel durchströmt wird.It is also conceivable if the at least one capillary flows through the refrigerant in the cross, counter or direct current to the at least one suction line.
Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:
- Figur 1:
- eine schematische Ansicht zweier von einer Kapillare umwickelter Saugleitungen,
- Figur 2:
- schematische Ansichten einer mittig zwischen zwei Saugleitungen geführten Kapillare,
- Figur 3:
- schematische Ansichten zweier mittig zwischen zwei Saugleitungen geführter Kapillaren,
- Figur 4:
- eine schematische Ansicht einer Kapillare, die sequentiell Wärme an zwei Saugleitungen abgibt und
- Figur 5:
- eine schematische Ansicht zweier Kapillaren, die sequentiell Wärme an zwei Saugleitungen abgeben.
- FIG. 1:
- a schematic view of two suction lines wrapped by a capillary,
- FIG. 2:
- schematic views of a centrally guided between two suction lines capillary,
- FIG. 3:
- schematic views of two centrally guided between two suction lines capillaries,
- FIG. 4:
- a schematic view of a capillary, which sequentially emits heat to two suction lines and
- FIG. 5:
- a schematic view of two capillaries that emit sequentially heat to two suction lines.
Das Bezugszeichen 200 kennzeichnet eine Kapillare, die stromaufwärts der Verdampfer angeordnet ist und die beispielsweise beiden Verdampfern zugeordnet ist, d. h. die sowohl dann von Kältemittel durchströmt wird, wenn ein Verdampfer in Betrieb ist als auch dann wenn der andere Verdampfer in Betrieb ist.
Grundsätzlich können auch mehrere Kapillaren 200, 210 vorgesehen sein, von denen beispielsweise jeweils eine einem Verdampfer zugeordnet ist.The
In principle, a plurality of
Die eine oder mehreren Kapillaren 200 sind um die beiden Saugleitungen 12, 14 gewickelt.The one or
Sie können mit diesen verlötet oder aufgeschrumpft sein. Der Wärmeaustausch kann im Gleich-, Gegen- oder Kreuzstrom erfolgen. Dies gilt für die Ausführungsform gemäß
Auch ist es denkbar, dass eine Kapillare 200 zunächst mit der Saugleitung 12 und dann mit der Saugleitung 14 in wärmeübertragendem Kontakt steht und die Kapillare 210 genau umgekehrt zunächst mit der Saugleitung 14 und dann mit der Saugleitung 12 in wärmeübertragendem Kontakt.It is also conceivable for a capillary 200 to be in heat-transferring contact first with the
Die Begriffe "zunächst" und "dann" etc. bedeuten, dass das in den Kapillaren strömende Kältemittel Wärme zunächst an eine Saugleitung und dann an die andere Saugleitung abgibt.The terms "first" and "then" etc. mean that the refrigerant flowing in the capillaries emits heat first to a suction line and then to the other suction line.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013006912 | 2013-04-22 | ||
DE102013011049.1A DE102013011049A1 (en) | 2013-04-22 | 2013-07-02 | Cooling and / or Gerfriergerät |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2796813A1 true EP2796813A1 (en) | 2014-10-29 |
Family
ID=50513112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14165381.6A Withdrawn EP2796813A1 (en) | 2013-04-22 | 2014-04-22 | Refrigeration and/or freezer device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2796813A1 (en) |
DE (1) | DE102013011049A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017025270A1 (en) * | 2015-08-13 | 2017-02-16 | BSH Hausgeräte GmbH | Single-circuit refrigerator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2528157A3 (en) * | 1982-06-02 | 1983-12-09 | Indesit | THERMAL RECOVERY CYCLE CIRCUIT OF THE EXPANSION CAPILLARY TYPE CYCLE |
JP2002181398A (en) * | 2000-12-11 | 2002-06-26 | Toshiba Corp | Refrigerator |
JP2002267317A (en) * | 2001-03-13 | 2002-09-18 | Toshiba Corp | Refrigerator |
US20050109486A1 (en) * | 2003-11-20 | 2005-05-26 | Memory Stephen B. | Suction line heat exchanger for CO2 cooling system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2123179A (en) * | 1937-01-28 | 1938-07-12 | Westinghouse Electric & Mfg Co | Refrigerating apparatus |
US3566615A (en) * | 1969-04-03 | 1971-03-02 | Whirlpool Co | Heat exchanger with rolled-in capillary for refrigeration apparatus |
-
2013
- 2013-07-02 DE DE102013011049.1A patent/DE102013011049A1/en not_active Withdrawn
-
2014
- 2014-04-22 EP EP14165381.6A patent/EP2796813A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2528157A3 (en) * | 1982-06-02 | 1983-12-09 | Indesit | THERMAL RECOVERY CYCLE CIRCUIT OF THE EXPANSION CAPILLARY TYPE CYCLE |
JP2002181398A (en) * | 2000-12-11 | 2002-06-26 | Toshiba Corp | Refrigerator |
JP2002267317A (en) * | 2001-03-13 | 2002-09-18 | Toshiba Corp | Refrigerator |
US20050109486A1 (en) * | 2003-11-20 | 2005-05-26 | Memory Stephen B. | Suction line heat exchanger for CO2 cooling system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017025270A1 (en) * | 2015-08-13 | 2017-02-16 | BSH Hausgeräte GmbH | Single-circuit refrigerator |
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Publication number | Publication date |
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DE102013011049A1 (en) | 2014-10-23 |
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