EP2021632B1 - Refrigerant compressor - Google Patents
Refrigerant compressor Download PDFInfo
- Publication number
- EP2021632B1 EP2021632B1 EP07729392A EP07729392A EP2021632B1 EP 2021632 B1 EP2021632 B1 EP 2021632B1 EP 07729392 A EP07729392 A EP 07729392A EP 07729392 A EP07729392 A EP 07729392A EP 2021632 B1 EP2021632 B1 EP 2021632B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor housing
- refrigerant
- suction
- oil
- 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.)
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- 239000003507 refrigerant Substances 0.000 title claims description 54
- 239000003921 oil Substances 0.000 description 54
- 238000001816 cooling Methods 0.000 description 9
- 238000007906 compression Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
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- 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
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
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- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
Definitions
- the present invention relates to a hermetically sealed refrigerant compressor with a hermetically sealed compressor housing, in the interior of which a refrigerant-compressing piston-cylinder unit operates, and a suction channel is provided, via which refrigerant in the compressor housing or in a piston to the piston Cylinder unit coupled suction muffler is conveyed and a pressure channel is provided, via which refrigerant is transported from the piston-cylinder unit from the compressor housing, according to the preamble of claim 1.
- a refrigerant medium compressor is, for example US 6,607,369 B1 known.
- Such refrigerant compressors are used in domestic and industrial applications, where they are usually arranged on the back of a refrigerator or refrigerator. Your task is to compress a refrigerant circulating in the cooling system and memorizube patn, whereby heat dissipated from the interior of the refrigerator, delivered to the environment and a refrigerator or cooling rack is thus cooled in a known manner.
- the refrigerant compressor has a hermetically sealed compressor housing and an electric motor which drives a cylinder oscillating piston in a cylinder for compressing the refrigerant via a crankshaft.
- the compressor housing consists mostly of a cover part and a base part and has connection openings, wherein a suction channel, a pressure channel and possibly other lines are provided, which lead through the connection openings in the compressor housing and out of this to the refrigerant to the cylinder and this again in the Transport refrigeration cycle.
- a suction muffler Before the refrigerant sucked in the suction duct enters the piston-cylinder unit, it is guided via a suction muffler, which has the task of absorbing or reducing the noise caused by the refrigerant circulation and the piston and valve movements.
- an oil pump is provided, which supplies the piston-cylinder unit with oil.
- the oil circulating within the compressor housing in this manner is swirled either via suitable nozzles or via rotary elements mounted on the crankshaft and fed to the desired areas of the compressor system.
- the pressure channel also causes an indirect heating of the compressor housing and the suction channel. Since the compressed refrigerant discharged in the pressure channel has temperatures of up to 100 ° C., the pressure channel also heats up considerably, which is why the refrigerant ejected from the piston-cylinder unit is to be conveyed out of the compressor housing as hot as possible.
- the lower temperature oil undesirably absorbs heat and, as it circulates within the compressor housing, discharges it to the compressor housing, causing heating of the whole Interior of the compressor housing, so also the suction channel and the piston-cylinder unit entails.
- Possibilities for improving the efficiency are in particular in the lowering of the temperature of the sucked refrigerant at the beginning of the compression process.
- Each lowering of the intake temperature of the refrigerant into the cylinder of the piston-cylinder unit therefore causes a reduction as well as the lowering of the temperature during the compression process and associated Ausschiebetemperatur the required technical work for the compaction process.
- baffle plate in the region of the inlet of the suction pipe is known in the compressor housing, which serves to prevent sucked through the suction pipe liquid refrigerant or lubricant enters a second, leading into the cylinder portion of the suction pipe and thus enters the cylinder.
- the design of this baffle depends on the gas flowing into the compressor housing, whereby the plate can have relatively narrow dimensions.
- a generic refrigerant compressor has a hermetically sealed compressor housing, in the interior of which a refrigerant-compressing piston-cylinder unit operates, which is supplied via a discharging into the compressor housing or in the compressor housing suction channel with refrigerant and connected to a leading from the compressor housing pressure channel ,
- the inventive arrangement of the deflection means a heat exchange between the oil and the suction channel or pressure channel is prevented, in particular it is avoided that the flowing oil heats the suction channel and that the pressure channel heats the flowing oil.
- the deflection means are at least one leading extension projecting inwards from the compressor housing wall.
- a guide extension reliably shields the suction channel or pressure channel from the oil flowing down the compressor housing wall, since it can flow off or drip along the longitudinal extent of the conductive extension without wetting the suction channel or pressure channel.
- the deflection means arranged above the suction channel or pressure channel it can also be, as experiments have shown, instead of a guide extension at least one recess provided directly in the compressor housing wall, which provides adequate shielding of the suction channel or pressure channel from the downflowing Oil causes by the at the Compressor housing wall draining oil follows the course of the recess and is thus guided around the suction channel 2 and the pressure channel 3.
- the Leitfortsatz is substantially V-shaped, wherein the tip of the V is arranged in the operating position of the compressor housing above the suction channel or pressure channel.
- the subject V-shape is easy to manufacture and allows a direct deflection of the downflowing oil from the immediate area of the suction or pressure channel by dividing the downflow of oil at the top of the V to the left and right and according to the gravity of the two legs of the V flows without contacting the suction channel or pressure channel.
- the conductive extension or the recess can have a umbrella-shaped design, which means that the conductive extension or the recess has a convex longitudinal extent (viewed in the operating position of the refrigerant compressor).
- the conductive extension has a trough-shaped or a in the suction channel or pressure channel opposite direction has concave cross-sectional profile.
- the suction channel and / or the pressure channel is tubular.
- the tubular cross-section of the suction channel and pressure channel allows a simple connection ebendon to the compressor housing by means provided in the compressor housing bores or a suitable connection element.
- the present refrigerant compressor has a hermetically sealed compressor housing 1, into which a suction channel 2, a pressure channel 3 and a service pipe 9 open via connection openings 5.
- a refrigerant flows via the suction channel 2, a refrigerant to a disposed within the compressor housing 1 (not shown) piston-cylinder unit in which a compression of the refrigerant takes place, wherein the pressure channel 3, the compressed and therefore highly heated refrigerant as a result the piston-cylinder unit leads out of the compressor housing 1 out into a (also not shown) cooling circuit of a cold room.
- the piston-cylinder unit is driven by an electric motor via a crankshaft, so that the cooling space associated with the refrigerant compressor is continuously cooled by means of the circulating refrigerant.
- the sucked in the suction passage 2 refrigerant passes through a coupled to the piston-cylinder unit suction muffler in the piston-cylinder unit to absorb the noise caused by the refrigerant circulation and the piston and valve movements.
- the suction channel 2 can either be free in the compressor housing open, wherein the refrigerant is sucked in this case from the compressor housing in the piston-cylinder unit, or the suction channel 2 is directly connected to the suction muffler, whereby the refrigerant is passed directly, via the suction muffler, in the piston-cylinder unit.
- the suction pipe usually protrudes slightly into the interior of the compressor housing.
- Suction channel 2 and pressure channel 3 are preferably tubular, but may also have other cross-sectional shapes.
- the compressor housing 1 has a plurality of stand elements 8, by means of which it can be positioned on a predetermined footprint of a cooling device.
- a compressor housing 1 can also be configured in other ways, for example in the form of an obliquely divided or otherwise composite compressor housing 1.
- Suction channel 2, pressure channel 3 or service pipe 9 to lead over the cover part into the interior of the compressor housing, wherein the suction channel 2, the pressure channel 3 is not necessarily the same as in Fig.1 shown, must run in pairs next to each other, but also in any staggered connection openings 5 of the compressor housing 1 open or can lead out of these.
- the service tube 9 is only a factory-filling of the compressor housing 1 with a suitable gas or for filling with oil 4, whose application is described below.
- Fig.2 shows a plan view of the in Fig.1 illustrated as an oblique view compressor housing 1 and forms with the therein drawn sectional guides AA and BB, the reference of in Fig. 3 shown, partial sectional view showing a connection of the suction channel 2 and the pressure channel 3 to the compressor housing 1.
- Suction channel 2 or pressure channel 3 in this case pass through a hermetically sealed to the compressor housing 1, disk-shaped connection element 7 through the compressor housing arranged in the connection openings 10, wherein the connection element 7 in turn hermetically sealed to the suction channel 2 and Druckkanal 3will ist.
- the attachment of the suction channel 2 / pressure channel 3 on the connection element 7 and the connection element 7 takes place on the compressor housing 1 by means of welding or soldering.
- oil pump is further arranged, the task of which is to convey the already mentioned oil 4, with which the compressor housing 1 is filled, to the sliding parts of the piston-cylinder unit to lubricate and to cool.
- the bearings of the connecting rod to crankshaft and piston are supplied in this way continuously with circulating oil 4.
- the circulation of oil also causes cooling of the piston-cylinder unit and continuously dissipates the heat generated there during the refrigerant compression.
- the deflection means is arranged above the passage of the suction channel 2 or pressure channel 3 through the connection opening 10 of the compressor housing wall 1, the distance from the deflection means to the suction channel 2 / pressure channel 3 or to the connecting element 7 enclosing this depending on the application according to the size of the circulating oil volume, the type of the respective pump or Verwirbelungstechnik, and the specific interior geometry and component arrangement of the refrigerant compressor is to be selected individually, but the distance may not be so large that the fluid flow of the already passed past the deflection means 4 oil again in the direction of the suction channel 2 / Spread pressure channel 3 and could come into contact with these.
- the deflection means is designed as a conductive extension 5 protruding inward from the compressor housing wall.
- the Leitfortsatz 5 shields the suction channel 2 and the pressure channel 3 from the flowing down to the compressor housing wall 1 oil 4, by this can flow along the longitudinal extent of the Leitfortsatzes 5 or drain.
- the oil 4 thus passes through the immediate region of the passage of the suction channel 2 and the pressure channel 3 through the connection opening 10 in the compressor housing wall 1, without coming into contact with the suction channel 2 or the pressure channel 3.
- the guide extension 5 is preferably a separately manufactured component which is attached to the inside of the compressor housing 1 by means of conventional connection technology, such as welding, soldering or gluing. If this proves to be advantageous under the respective requirements of series production, however, the lead extension 5 can also be mounted in the intended position by means of dowel pins, a latching connection or the like become.
- the one-piece production of the Leitfortsatzes 5 with the compressor housing is possible and represents a simplification of the production.
- the Leitfortsatz 5 may also be formed, for example, V-shaped.
- V-shaped configuration the tip of the V in the operating position of the compressor housing 1 is arranged above the suction channel 2 or pressure channel 3, so that the flowing down to the compressor housing wall stream of the oil 4 is divided at the top of the V to the left and right and accordingly the gravity on the two legs of the V flows without contacting the suction channel 2 or 3 pressure channel.
- the two legs of the V are pulled down below the suction channel 2 or pressure channel 3 and shield the suction channel 2 or the pressure channel 3 to a certain extent like a pitched roof.
- V-shape can be designed in many variations, such as with curved portions of the longitudinal extension or the like.
- main extension 5 may also be advantageous to provide the main extension 5 with longitudinal grooves, ie with notches arranged along its longitudinal extension. In this way it is prevented that around the Leitfortsatz 5 creeping oil flows to the suction channel 2 and Druckkanal 3 arrive (not shown).
- Leitfortsatzes 5 can as a deflection in an alternative embodiment according to Figure 5 Also find at least one recess 6 in the compressor housing wall 1 use. Which recess profile is chosen is up to the possibilities of the manufacturing method used and the individual design. By way of example, a simple V-notch shape, a simple groove, a T-groove, a dovetail groove or a rounded groove may be mentioned at this point.
- a recess 6 also results in the oil 4 flowing down the compressor housing wall and impinging on the profiled recess 6, as shown in FIG Figure 5 continued along the course of the recess 6 and the side of the suction channel 2 and the pressure channel 3 is guided past.
- the recess 6 extends continuously over the suction channel 2 or pressure channel 3.
- the recess 6 may thus have any gradients and be executed, for example, umbrella-shaped or V-shaped.
- the recess 6 is produced in a known manner by means of cutting or non-cutting processing methods.
- a plurality of conductive extensions 5 or recesses 6 one above the other in order to completely exclude any contact of the downflowing oil 4 with the suction channel 2 or pressure channel 3 by dripping and oil quantities creeping around the deflection means.
- a recess 6 arranged approximately parallel to this is provided below a guide extension 5
- oil drops or creeping amounts of oil which overcome the guide extension 5 and continue to move in the direction of the suction channel 2 or pressure channel 3 are prevented at the latest from the recess 6 to contact the suction channel 2 and 3 pressure channel.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Description
Die vorliegende Erfindung bezieht sich auf einen hermetisch gekapselten Kältemittelverdichter mit einem hermetisch dichten Verdichtergehäuse, in dessen Innerem eine ein Kältemittel verdichtende Kolben-Zylinder-Einheit arbeitet, und ein Saugkanal vorgesehen ist, über welchen Kältemittel in das Verdichtergehäuse bzw. in einen an die Kolben-Zylindereinheit gekoppelten Saugschalldämpfer befördert wird sowie ein Druckkanal vorgesehenen ist, über welchen Kältemittel von der Kolben-Zylindereinheit aus dem Verdichtergehäuse befördert wird, gemäß dem Oberbegriff des Anspruchs 1. Ein solcher Kälte mittelverdichter ist zum Beispiel aus
Der Kältemittelverdichter besitzt ein hermetisch abgedichtetes Verdichtergehäuse und einen Elektromotor, welcher über eine Kurbelwelle einen in einem Zylinder oszillierenden Kolben zur Verdichtung des Kältemittels antreibt. Das Verdichtergehäuse besteht dabei zumeist aus einem Deckelteil und einem Basisteil und weist Anschlussöffnungen auf, wobei ein Saugkanal, ein Druckkanal sowie eventuell noch andere Leitungen vorgesehen sind, welche durch die Anschlussöffnungen in das Verdichtergehäuse hinein und aus diesem herausführen, um das Kältemittel zum Zylinder und von diesem wieder in den Kühlkreislauf zu befördern. Bevor das im Saugkanal angesaugte Kältemittel in die Kolben-Zylindereinheit gelangt, wird es über einen Saugschalldämpfer geführt, welcher die Aufgabe besitzt, die durch die Kältemittelzirkulation und die Kolben- und Ventilbewegungen verursachten Geräusche zu absorbieren bzw. zu verringern.The refrigerant compressor has a hermetically sealed compressor housing and an electric motor which drives a cylinder oscillating piston in a cylinder for compressing the refrigerant via a crankshaft. The compressor housing consists mostly of a cover part and a base part and has connection openings, wherein a suction channel, a pressure channel and possibly other lines are provided, which lead through the connection openings in the compressor housing and out of this to the refrigerant to the cylinder and this again in the Transport refrigeration cycle. Before the refrigerant sucked in the suction duct enters the piston-cylinder unit, it is guided via a suction muffler, which has the task of absorbing or reducing the noise caused by the refrigerant circulation and the piston and valve movements.
Um einerseits die aneinander gleitenden Teile der Kolben-Zylindereinheit zu schmieren und um andererseits eine Kühlung der Kolben-Zylindereinheit zu bewerkstelligen, ist eine Ölpumpe vorgesehen, welche die Kolben-Zylindereinheit mit Öl versorgt.On the one hand to lubricate the mutually sliding parts of the piston-cylinder unit and on the other hand to accomplish a cooling of the piston-cylinder unit, an oil pump is provided, which supplies the piston-cylinder unit with oil.
Das auf diese Weise innerhalb des Verdichtergehäuses zirkulierende Öl wird entweder über geeignete Düsen oder über an der Kurbelwelle angebrachte Rotationselemente verwirbelt und den gewünschten Bereichen des Kompressorsystems zugeführt.The oil circulating within the compressor housing in this manner is swirled either via suitable nozzles or via rotary elements mounted on the crankshaft and fed to the desired areas of the compressor system.
Hierbei ist es erwünscht, dass sich das verwirbelte und erwärmte Öl fortwährend auch an der Verdichtergehäusewand niederschlägt und die vom Öl aufgenommene Wärme an das Verdichtergehäuse abgegeben und in weiterer Folge an die Umgebung abgeführt wird.Here, it is desirable that the swirled and heated oil continues to be reflected on the compressor housing wall and the heat absorbed by the oil is discharged to the compressor housing and subsequently discharged to the environment.
Nicht erwünscht ist hierbei jedoch, dass ein Wärmeaustausch vom Öl zum Saugkanal und zum Druckkanal erfolgt. Gelangt nämlich das sich an der Verdichtergehäusewand niedergeschlagene und an dieser in der durch die Schwerkraft vorgegebenen Richtung abfließende, erwärmte Öl in Kontakt mit dem Saugkanal, so wird dieser in unerwünschter Weise erwärmt und vermittelt diese zugeführte Wärme auch dem im Saugkanal transportierten und unmittelbar vor dem Kompressionsvorgang stehenden Kältemittel. Eine Erhöhung der Ansaugtemperatur des Kältemittels bedingt jedoch eine Verschlechterung des Wirkungsgrades des Kältemittelverdichters und soll möglichst vermieden werden.However, it is not desirable here that a heat exchange takes place from the oil to the suction channel and to the pressure channel. If the heated oil flowing down the compressor housing wall and flowing away therefrom in the direction predetermined by the force of gravity comes into contact with the suction channel, it is undesirably heated and conveys this heat also to the heat transported in the suction channel and immediately before the compression process standing refrigerant. An increase in the intake temperature of the refrigerant, however, causes a deterioration of the Efficiency of the refrigerant compressor and should be avoided as possible.
Auch der Druckkanal bewirkt auf indirekte Weise eine zusätzliche Erwärmung des Verdichtergehäuses und des Saugkanals. Da das im Druckkanal abgeführte, verdichtete Kältemittel Temperaturen bis zu 100°C aufweist, erfolgt ebenfalls eine starke Erwärmung des Druckkanals, weshalb das von der Kolben-Zylindereinheit ausgeschobene Kältemittel möglichst heiß aus dem Verdichtergehäuse hinausbefördert werden soll.The pressure channel also causes an indirect heating of the compressor housing and the suction channel. Since the compressed refrigerant discharged in the pressure channel has temperatures of up to 100 ° C., the pressure channel also heats up considerably, which is why the refrigerant ejected from the piston-cylinder unit is to be conveyed out of the compressor housing as hot as possible.
Gelangt das an der Verdichtergehäusewand abfließende Öl jedoch in Kontakt mit dem heißen Druckkanal, so nimmt das auf niedrigerem Temperaturniveau stehende Öl in unerwünschter Weise Wärme auf und gibt diese, da es ja innerhalb des Verdichtergehäuses zirkuliert, an das Verdichtergehäuse ab, was eine Erwärmung des gesamten Innenraums des Verdichtergehäuses, so auch des Saugkanals und der Kolben-Zylindereinheit nach sich zieht.However, when the oil draining from the compressor housing wall comes into contact with the hot pressure channel, the lower temperature oil undesirably absorbs heat and, as it circulates within the compressor housing, discharges it to the compressor housing, causing heating of the whole Interior of the compressor housing, so also the suction channel and the piston-cylinder unit entails.
Angesichts der weltweit großen Anzahl in Betrieb befindlicher Kältemittelverdichter liegt in jeder Wirkungsgradverbesserung, die an einem Kältemittelverdichter vorgenommen wird, ein beträchtliches Energieeinsparungspotential, welches im Zuge der sich global verknappenden Energieressourcen von immer größerer Relevanz wird.Considering the large number of refrigerant compressors in operation in the world, any efficiency improvement made to a refrigerant compressor has significant energy savings potential, which is becoming increasingly important as global energy resources become scarcer.
Möglichkeiten für eine Verbesserung des Wirkungsgrades liegen insbesondere in der Absenkung der Temperatur des angesaugten Kältemittels am Beginn des Kompressionsvorganges. Jede Absenkung der Einsaugtemperatur des Kältemittels in den Zylinder der Kolben-Zylinder-Einheit bewirkt daher ebenso wie die Absenkung der Temperatur während des Verdichtungsvorganges und damit verbunden der Ausschiebetemperatur eine Verringerung der erforderlichen technischen Arbeit für den Verdichtungsvorgang.Possibilities for improving the efficiency are in particular in the lowering of the temperature of the sucked refrigerant at the beginning of the compression process. Each lowering of the intake temperature of the refrigerant into the cylinder of the piston-cylinder unit therefore causes a reduction as well as the lowering of the temperature during the compression process and associated Ausschiebetemperatur the required technical work for the compaction process.
Aus der
Es ist daher das Ziel der vorliegenden Erfindung, einen Kontakt von an der Verdichtergehäusewand herabfließendem Öl mit dem Saugkanal sowie dem Druckkanal zu verhindern, um eine Erwärmung des Kältemittels innerhalb des Verdichtergehäuses zu vermindern und auf diese Weise den Wirkungsgrad des Kältemittelverdichters zu erhöhen.It is therefore the object of the present invention to prevent contact of oil flowing down the compressor housing wall with the suction passage and the pressure passage to reduce heating of the refrigerant within the compressor housing and thus increase the efficiency of the refrigerant compressor.
Diese Aufgabe wird durch einen hermetisch gekapselten Kältemittelverdichter mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.This object is achieved by a hermetically sealed refrigerant compressor with the characterizing features of
Ein gattungsgemäßer Kältemittelverdichter weist ein hermetisch dichtes Verdichtergehäuse auf, in dessen Inneren eine ein Kältemittel verdichtende Kolben-Zylindereinheit arbeitet, die über einen in das Verdichtergehäuse mündenden bzw. in das Verdichtergehäuse geführten Saugkanal mit Kältemittel versorgt wird sowie mit einem aus dem Verdichtergehäuse führenden Druckkanal verbunden ist.A generic refrigerant compressor has a hermetically sealed compressor housing, in the interior of which a refrigerant-compressing piston-cylinder unit operates, which is supplied via a discharging into the compressor housing or in the compressor housing suction channel with refrigerant and connected to a leading from the compressor housing pressure channel ,
Erfindungsgemäß ist vorgesehen, dass in Betriebsposition des Verdichtergehäuses oberhalb des Durchtrittes des Saugkanals bzw. Druckkanals durch die Verdichtergehäusewand an derselben Ablenkmittel vorgesehen sind, welche einen Kontakt von an der Verdichtergehäusewand herabfließendem Öl mit dem Saugkanal bzw. Druckkanal verhindern.According to the invention, it is provided that in the operating position of the compressor housing above the passage of the suction channel or pressure channel through the compressor housing wall to the same deflection means are provided which prevent contact of flowing down on the compressor housing wall oil with the suction channel or pressure channel.
Durch die erfindungsgemäße Anordnung der Ablenkmittel wird ein Wärmeaustausch zwischen Öl und Saugkanal bzw. Druckkanal verhindert, insbesondere wird vermieden, dass das herabfließende Öl den Saugkanal erwärmt und dass der Druckkanal das herabfließende Öl erwärmt.The inventive arrangement of the deflection means a heat exchange between the oil and the suction channel or pressure channel is prevented, in particular it is avoided that the flowing oil heats the suction channel and that the pressure channel heats the flowing oil.
Damit wird vermieden, dass sich das unmittelbar vor dem Kompressionsvorgang stehendende Kältemittel in unerwünschter Weise erwärmt und somit eine Erhöhung des Wirkungsgrades des Kältemittelverdichters erzielt.This avoids that the standing immediately before the compression process refrigerant heats in an undesirable manner, thus achieving an increase in the efficiency of the refrigerant compressor.
Gemäß den kennzeichnenden Merkmalen des Anspruchs 2 handelt es sich bei den Ablenkmitteln um mindestens einen von der Verdichtergehäusewand nach innen abstehenden Leitfortsatz. Ein solcher Leitfortsatz schirmt den Saugkanal bzw. Druckkanal zuverlässig von dem an der Verdichtergehäusewand herabfließenden Öl ab, indem dieses entlang der Längserstreckung des Leitfortsatzes abfließen bzw. abtropfen kann, ohne den Saugkanal bzw. Druckkanal zu benetzen.According to the characterizing features of
Bei den oberhalb des Saugkanals bzw. Druckkanals angeordneten Ablenkmitteln kann es sich aber gemäß Anspruch 3 auch, wie Versuche gezeigt haben, anstelle eines Leitfortsatzes um mindestens eine unmittelbar in der Verdichtergehäusewand vorgesehene Ausnehmung handeln, die eine hinreichende Abschirmung des Saugkanals bzw. Druckkanals vor dem herabfließenden Öl bewirkt, indem das an der Verdichtergehäusewand abfließende Öl dem Verlauf der Ausnehmung folgt und so um den Saugkanal 2 bzw. Druckkanal 3 herumgeführt wird.In the case of the deflection means arranged above the suction channel or pressure channel, it can also be, as experiments have shown, instead of a guide extension at least one recess provided directly in the compressor housing wall, which provides adequate shielding of the suction channel or pressure channel from the downflowing Oil causes by the at the Compressor housing wall draining oil follows the course of the recess and is thus guided around the
In einer bevorzugten Ausführungsform gemäß den kennzeichnenden Merkmalen des Anspruchs 4 ist der Leitfortsatz im Wesentlichen V-förmig ausgebildet, wobei die Spitze des V in Betriebsposition des Verdichtergehäuses oberhalb des Saugkanals bzw. Druckkanals angeordnet ist. Die gegenständliche V-Form ist einfach zu fertigen und ermöglicht eine direkte Umlenkung des herabfließenden Öls aus dem unmittelbaren Bereich des Saugkanals bzw. Druckkanals, indem der herabfließende Ölstrom an der Spitze des V nach links und rechts geteilt wird und entsprechend der Schwerkraft an den beiden Schenkeln des V abfließt, ohne den Saugkanal bzw. Druckkanal zu kontaktieren.In a preferred embodiment according to the characterizing features of
Um hierbei zu gewährleisten, dass das an der Verdichtergehäusewand herabfließende Öl gänzlich um den Saugkanal bzw. Druckkanal herumgeführt wird und etwaigen Tropfenflug auf ebendiese auszuschließen, ist es gemäß den kennzeichnenden Merkmalen des Anspruchs 5 vorgesehen, dass die beiden Schenkel des V bis unterhalb des Saugkanals bzw. Druckkanals verlaufen.In order to ensure that the oil flowing down the compressor housing wall is guided completely around the suction channel or pressure channel and excludes any drop in flight, it is provided according to the characterizing features of
Der Leitfortsatz bzw. die Ausnehmung kann gemäß den kennzeichnenden Merkmalen des Anspruchs 6 eine schirmförmige Ausbildung aufweisen, was bedeutet, dass der Leitfortsatz bzw. die Ausnehmung eine (in Betriebsposition des Kältemittelverdichters betrachtet) nach oben hin konvexe Längserstreckung aufweist.According to the characterizing features of claim 6, the conductive extension or the recess can have a umbrella-shaped design, which means that the conductive extension or the recess has a convex longitudinal extent (viewed in the operating position of the refrigerant compressor).
Um auszuschließen, dass kriechende Rinnsale an Öl sich von der Oberseite des Leitfortsatzes auf dessen Unterseite fortsetzen und in der Folge auf den Saugkanal bzw. Druckkanal gelangen, ist zufolge der kennzeichnenden Merkmale des Anspruchs 7 vorgesehen, dass der Leitfortsatz ein rinnenförmiges bzw. ein in dem Saugkanal bzw. Druckkanal abgewandter Richtung konkaves Querschnittsprofil besitzt.To preclude creeping rivulets of oil from continuing from the top of the conductive extension on the underside thereof and subsequently reaching the suction channel or pressure channel, it is provided according to the characterizing features of
Um einen Kontakt des herabfließenden Öls mit dem Saugkanal oder Druckkanal durch Tropfenbildung und um die Ablenkmittel herumkriechende Ölströme zu verhindern, kann es gemäß den kennzeichnenden Merkmalen des Anspruchs 8 darüber hinaus vorteilhaft sein, mehrere Leitfortsätze oder Ausnehmungen übereinander anzuordnen. Überwindet also eine gewisse Ölmenge die von einem ersten Ablenkmittel gebildete Barriere und nähert sich entsprechend der Schwerkraft dem Saugkanal bzw. Druckkanal, so ist spätestens durch die von einem zweiten Ablenkmittel gebildete Barriere dafür gesorgt, dass diese Ölmenge vom Saugkanal bzw. Druckkanal abgelenkt wird und diese nicht kontaktiert.In order to prevent contact of the downflowing oil with the suction channel or pressure channel by drop formation and around the deflection creeping around oil flows, it may be advantageous according to the characterizing features of
Gemäß den kennzeichnenden Merkmalen des Anspruchs 9 ist der Saugkanal und/oder der Druckkanal rohrförmig ausgebildet. Der rohrförmige Querschnitt von Saugkanal und Druckkanal ermöglicht einen einfachen Anschluss ebendieser an das Verdichtergehäuse mittels im Verdichtergehäuse vorgesehener Bohrungen bzw. eines geeigneten Anschlusselementes.According to the characterizing features of
Die Erfindung wird nun anhand eines Ausführungsbeispiels näher erläutert. Dabei zeigt:
-
Fig.1 einen Basisteil eines Verdichtergehäuses in Schrägansicht -
Fig.2 einen Basisteil eines Verdichtergehäuses in Draufsicht -
Fig.3 eine partielle Schnittdarstellung des Verdichtergehäuses ausFig.2 entlang Linien A-A bzw. B-B -
Fig.4 eine Detailansicht eines erfindungsgemäßen Ablenkmittels gemäß Blickrichtung D ausFig.2 -
Fig.5 eine Detailansicht eines erfindungsgemäßen Ablenkmittels gemäß Blickrichtung D ausFig.2 -
Fig.6 eine schematische Darstellung eines erfindungsgemäßen Leitfortsatzes in Schnittdarstellung gemäß der Linien A-A bzw. B-B ausFig.2 -
Fig.7 eine schematische Darstellung eines erfindungsgemäßen Leitfortsatzes in Schnittdarstellung gemäß der Linien A-A bzw. B-B ausFig.2
-
Fig.1 a base part of a compressor housing in an oblique view -
Fig.2 a base part of a compressor housing in plan view -
Figure 3 a partial sectional view of the compressor housingFig.2 along lines AA and BB -
Figure 4 a detailed view of a deflection according to the invention according to the viewing direction D fromFig.2 -
Figure 5 a detailed view of a deflection according to the invention according to the viewing direction D fromFig.2 -
Figure 6 a schematic representation of a lead extension according to the invention in a sectional view according to the lines AA and BBFig.2 -
Figure 7 a schematic representation of a lead extension according to the invention in a sectional view according to the lines AA and BBFig.2
Der vorliegende Kältemittelverdichter besitzt ein hermetisch dichtes Verdichtergehäuses 1, in welches ein Saugkanal 2, ein Druckkanal 3 sowie ein Servicerohr 9 über Anschlussöffnungen 5 hineinmünden.The present refrigerant compressor has a hermetically sealed
In bekannter Weise strömt über den Saugkanal 2 ein Kältemittel zu einer innerhalb des Verdichtergehäuses 1 angeordneten (nicht dargestellten) Kolben-Zylinder-Einheit, in welcher eine Kompression des Kältemittels erfolgt, wobei der Druckkanal 3 das verdichtete und daher stark erwärmte Kältemittel in weiterer Folge von der Kolben-Zylinder-Einheit wieder aus dem Verdichtergehäuse 1 heraus in einen (ebenfalls nicht dargestellten) Kühlkreislauf eines Kühlraums führt. Die Kolben-Zylinder-Einheit wird dabei von einem Elektromotor über eine Kurbelwelle angetrieben, sodass der mit dem Kältemittelverdichter assoziierte Kühlraum mittels des zirkulierenden Kältemittels fortwährend gekühlt wird.In a known manner flows via the
Das im Saugkanal 2 angesaugte Kältemittel gelangt hierbei über einen an die Kolben-Zylindereinheit gekoppelten Saugschalldämpfer in die Kolben-Zylindereinheit, um die durch die Kältemittelzirkulation bzw. die Kolben- und Ventilbewegungen verursachten Geräusche zu absorbieren. Der Saugkanal 2 kann dabei entweder frei in das Verdichtergehäuse münden, wobei das Kältemittel in diesem Fall aus dem Verdichtergehäuse in die Kolben-Zylindereinheit angesaugt wird, oder aber ist der Saugkanal 2 direkt mit dem Saugschalldämpfer verbunden, wodurch das Kältemittel direkt, über den Saugschalldämpfer, in die Kolben-Zylindereinheit geleitet wird. In ersterem Fall ragt das Saugrohr in der Regel etwas in das Innere des Verdichtergehäuses hinein.The sucked in the
Saugkanal 2 und Druckkanal 3 sind vorzugsweise rohrförmig ausgebildet, können jedoch gleichfalls andere Querschnittsformen aufweisen.
Das Verdichtergehäuse 1 weist mehrere Standelemente 8 auf, mittels welchen es auf einer dafür vorbestimmten Standfläche eines Kühlgeräts positioniert werden kann.The
Obwohl in diesem Zusammenhang in
Das Servicerohr 9 dient lediglich einer werksseitigen Befüllung des Verdichtergehäuse 1 mit einem geeigneten Gas oder auch zur Befüllung mit Öl 4, dessen Einsatzzweck weiter unten beschrieben ist.The
Innerhalb des Verdichtergehäuses 1 ist weiters eine (nicht dargestellte) Ölpumpe angeordnet, deren Aufgabe es ist, das bereits erwähnte Öl 4, mit welchem das Verdichtergehäuse 1 befüllt ist, zu den aneinander gleitenden Teilen der Kolben-Zylindereinheit zu befördern, um diese zu schmieren und zu kühlen. Insbesondere die Lagerungen der Pleuelstange an Kurbelwelle und Kolben werden auf diese Weise fortwährend mit zirkulierendem Öl 4 versorgt.Within the compressor housing 1 a (not shown) oil pump is further arranged, the task of which is to convey the already mentioned
Die Ölzirkulation bewirkt andererseits auch eine Kühlung der Kolben-Zylindereinheit und führt die im Zuge der Kältemittelkompression dort entstehende Wärme kontinuierlich ab.On the other hand, the circulation of oil also causes cooling of the piston-cylinder unit and continuously dissipates the heat generated there during the refrigerant compression.
Anstelle einer mit einer Düse versehenen Ölpumpe ist es zwecks Schmierung und Kühlung der Kolben-Zylindereinheit auch möglich, entlang der Achse der senkrecht angeordneten Kurbelwelle einen Hohlkanal vorzusehen, durch welchen im Basisteil des Verdichtergehäuses 1 am Grund angesammeltes Öl 4 aufgrund der Rotation der Kurbelwelle in einer Sogwirkung nach oben befördert und beim Austreten aus dem Hohlkanal am oberen Ende der Kurbelwelle über an der Kurbelwelle angebrachte Rotationselemente verwirbelt und den gewünschten Bereichen der Kolben-Zylindereinheit zugeführt wird. Hierbei muss durch geeignete Dichtungen verhindert werden, dass das verwirbelte Öl 4 in den Zylinderkopf gelangt und mitsamt dem Kältemittel in den Kühlkreislauf eintritt.Instead of an oil pump provided with a nozzle, it is also possible for the purpose of lubrication and cooling of the piston-cylinder unit to provide along the axis of the vertically arranged crankshaft a hollow channel, through which in Base part of the
Auch der Einsatz von sogenannten Archimedischen Spiralen an der Kurbelwelle zwecks Ölforderungen zum Kolben ist bekannt.The use of so-called Archimedean spirals on the crankshaft in order to oil demands on the piston is known.
Unabhängig davon, welches System zur Bewerkstelligung des Ölkreislaufs konkret Einsatz findet, kommt es jedenfalls dazu, dass sich das verwirbelte und erwärmte Öl 4 fortwährend auch an der Verdichtergehäusewand niederschlägt und dort in Richtung der Schwerkraft abwärts fließt (siehe
Um zu verhindern, dass das Öl 4 während seines Herabfließens den Saugkanal 2 bzw. den Druckkanal 3 kontaktiert, beispielsweise am in das Verdichtergehäuse ragenden Abschnitt des Saugkanals 2 oder im Bereich des durch die Wand des Verdichtergehäuses geführten Druckrohres, und ein damit einhergehender Wärmeaustausch vom Öl 4 zum Saugkanal 2 oder vom (heißen). Druckkanal 3 auf das Öl 4 erfolgt, was in weiterer Folge wieder eine Erwärmung des Verdichtergehäuses 1 und somit auch des Saugkanals 2 bewirkt, ist erfindungsgemäß mindestens ein Ablenkmittel vorgesehen, welches den Saugkanal 2 bzw. Druckkanal 3 von herabfließendem Öl 4 abschirmt.In order to prevent the
Das Ablenkmittel ist oberhalb des Durchtrittes des Saugkanals 2 bzw. Druckkanals 3 durch die Anschlussöffnung 10 der Verdichtergehäusewand 1 angeordnet, wobei der Abstand vom Ablenkmittel zum Saugkanal 2/Druckkanal 3 bzw. zum diese umschließenden Anschlusselement 7 je nach Anwendungsfall entsprechend der Größe des zirkulierenden Ölvolumens, der Art der jeweiligen Pump- bzw. Verwirbelungstechnik, sowie der spezifischen Innenraumgeometrie und Komponentenanordnung des Kältemittelverdichters individuell zu wählen ist, der Abstand jedoch nicht so groß sein darf, dass der Fluidstrom des bereits am Ablenkmittel vorbeigeleiteten Öls 4 sich wieder in Richtung des Saugkanals 2/Druckkanals 3 ausbreiten und mit diesen in Kontakt kommen könnte.The deflection means is arranged above the passage of the
In einem bevorzugten Ausführungsbeispiel gemäß
Beim Leitfortsatz 5 handelt es sich vorzugsweise um ein separat gefertigtes Bauteil, welches mittels konventioneller Verbindungstechnik wie Schweißen, Löten oder Kleben an der Innenseite des Verdichtergehäuses 1 angebracht ist. Falls sich dies unter den jeweiligen Anforderungen einer Serienfertigung als vorteilhaft erweist, kann der Leitfortsatz 5 jedoch ebenso mittels Passstiften, einer Verrastungs-Verbindung oder dergleichen in vorgesehener Position montiert werden. Auch die einstückige Fertigung des Leitfortsatzes 5 mit dem Verdichtergehäuse ist möglich und stellt eine Vereinfachung der Fertigung dar.The
Obwohl gemäß
Um das Öl gänzlich um den Saugkanal 2 bzw. Druckkanal 3 herumzuführen, sind die beiden Schenkel des V bis unterhalb des Saugkanals 2 bzw. Druckkanals 3 heruntergezogen und schirmen den Saugkanal 2 bzw. Druckkanal 3 gewissermaßen wie ein Satteldach ab.In order to guide the oil completely around the
Es versteht sich, dass die gegenständliche V-Form in vielerlei Variation gestaltet sein kann, so etwa mit geschwungenen Abschnitten der Längserstreckung oder dergleichen.It is understood that the subject V-shape can be designed in many variations, such as with curved portions of the longitudinal extension or the like.
Es kann zudem vorteilhaft sein, den Leitfortsatz 5 mit Längsrillen, also mit entlang seiner Längserstreckung angeordneten Einkerbungen zu versehen. Auf diese Weise wird verhindert, dass um den Leitfortsatz 5 herumkriechende Ölströme zum Saugkanal 2 bzw. Druckkanal 3 gelangen (nicht dargestellt).It may also be advantageous to provide the
Dem Problem von kriechenden Ölmengen, welche sich um den Leitfortsatz 5 herumbewegen und sich von der Oberseite des Leitfortsatzes 5 auf dessen Unterseite fortsetzen, von wo aus sie dann unmittelbar zum Saugkanal 2 bzw. Druckkanal 3 gelangen, kann auch in der Weise begegnet werden, dass der Leitfortsatz gleich einer Regenrinne mit einem in dem Saugkanal 2 bzw. Druckkanal 3 abgewandter Richtung konkaven Querschnittsprofil versehen ist. Eine solche Ausführungsvariante ist schematisch in
Auch eine Anordnung des Leitfortsatzes 5 gemäß
Anstelle eines an der Verdichtergehäusewand nach innen abstehenden Leitfortsatzes 5 kann als Ablenkmittel in einer alternativen Ausführungsvariante gemäß
In jedem Fall führt auch die Vorsehung einer Ausnehmung 6 dazu, dass das an der Verdichtergehäusewand herabfließende und an der profilierten Ausnehmung 6 auftreffende Öl 4 entsprechend der Darstellung in
Wesentlich ist auch bei dieser Ausführungsvariante, dass die Ausnehmung 6 sich durchgehend über dem Saugkanal 2 bzw. Druckkanal 3 erstreckt. Bei der konkreten Ausgestaltung der Ausnehmung 6 hinsichtlich ihrer Längserstreckung gilt somit das Gleiche, was bisher schon zur Ausgestaltung des Leitfortsatzes 5 gesagt wurde: Auch die Ausnehmung 6 kann also beliebige Verläufe aufweisen und beispielsweise schirmförmig oder V-förmig ausgeführt sein.Also essential in this embodiment variant is that the recess 6 extends continuously over the
Die Ausnehmung 6 wird in bekannter Weise mittels spanender oder spanloser Bearbeitungsverfahren hergestellt.The recess 6 is produced in a known manner by means of cutting or non-cutting processing methods.
Gegebenenfalls kann es erforderlich sein, mehrere Leitfortsätze 5 oder Ausnehmungen 6 übereinander anzuordnen, um eine Berührung des herabfließenden Öls 4 mit dem Saugkanal 2 bzw. Druckkanal 3 durch Tropfenbildung und um die Ablenkmittel herumkriechende Ölmengen gänzlich auszuschließen. Ist beispielsweise unterhalb eines Leitfortsatzes 5 noch eine zu diesem annähernd parallel angeordnete Ausnehmung 6 vorgesehen, so werden Öltropfen oder herumkriechende Ölmengen, welche den Leitfortsatz 5 überwinden und sich weiter in Richtung des Saugkanals 2 bzw. Druckkanals 3 zubewegen, spätestens von der Ausnehmung 6 davon abgehalten, den Saugkanal 2 bzw. Druckkanal 3 zu kontaktieren.If necessary, it may be necessary to arrange a plurality of
Claims (9)
- A hermetically encapsulated refrigerant compressor which has a hermetically sealed compressor housing (1), in the interior of which operates a refrigerant-compressing piston-cylinder unit, and is provided with a suction duct (2), via which refrigerant is conveyed into the compressor housing (1) or in a suction muffler connected to the piston-cylinder unit, and is provided with a pressure duct (3), via which refrigerant is conveyed out of the compressor housing (1) by the piston-cylinder unit, characterized in that in the operating position of the compressor housing (1) deflection means (5, 6) are provided on the same above the passage of the suction duct (2) or pressure duct (3) through the compressor housing wall, which deflection means prevent contact of oil (4) flowing down the compressor housing wall with the suction duct (2) or pressure duct (3).
- A hermetically encapsulated refrigerant compressor according to claim 1, characterized in that the deflection means are designed as at least one guide extension (5) which protrudes inwardly from the compressor housing wall.
- A hermetically encapsulated refrigerant compressor according to claim 1, characterized in that the deflection means are designed as at least one recess (6), preferably at least one groove, in the compressor housing wall.
- A hermetically encapsulated refrigerant compressor according to claim 2 or 3, characterized in that the guide extension (5) or the recess (6) is substantially arranged in the shape of a V and the tip of the V is arranged above the suction duct (2) or pressure duct (3) in the operating position of the compressor housing (1).
- A hermetically encapsulated refrigerant compressor according to claim 4, characterized in that the two legs of the V extend until beneath the suction duct (2) or pressure duct (3).
- A hermetically encapsulated refrigerant compressor according to one of the claims 2 to 5, characterized in that the guide extension (5) or the recess (6) is arranged substantially in the manner of an umbrella or has an upwardly convex longitudinal extension.
- A hermetically encapsulated refrigerant compressor according to one of the claims 2 to 5, characterized in that the guide extension (5) comprises a groove-like cross-sectional profile or one that is concave in the direction averted in the suction duct (2) or pressure duct (3).
- A hermetically encapsulated refrigerant compressor according to one of the claims 1 to 7, characterized in that several deflection means are arranged on top of one another.
- A hermetically encapsulated refrigerant compressor according to one of the claims 1 to 8, characterized in that the suction duct and/or the pressure duct are arranged in a tubular way.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0041106U AT9232U1 (en) | 2006-05-22 | 2006-05-22 | REFRIGERANT COMPRESSOR |
PCT/EP2007/054953 WO2007135152A1 (en) | 2006-05-22 | 2007-05-22 | Refrigerant compressor |
Publications (2)
Publication Number | Publication Date |
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EP2021632A1 EP2021632A1 (en) | 2009-02-11 |
EP2021632B1 true EP2021632B1 (en) | 2009-09-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP07729392A Active EP2021632B1 (en) | 2006-05-22 | 2007-05-22 | Refrigerant compressor |
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US (1) | US8740580B2 (en) |
EP (1) | EP2021632B1 (en) |
CN (1) | CN101449059B (en) |
AT (2) | AT9232U1 (en) |
DE (1) | DE502007001645D1 (en) |
WO (1) | WO2007135152A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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BRPI0903956A2 (en) * | 2009-01-09 | 2010-11-23 | Aurelio Mayorca | process and equipment to improve efficiency of compressors and refrigerators |
CH704990A1 (en) * | 2011-05-20 | 2012-11-30 | Remo Meister | A method of repairing or checking a accommodated in a pressure-tight closed container, in particular refrigeration system and container for carrying out the method. |
CN104364526B (en) * | 2012-06-11 | 2016-08-24 | 株式会社村田制作所 | Aerator |
EP3147507A1 (en) * | 2015-09-25 | 2017-03-29 | BSH Hausgeräte GmbH | Rotary compressor for a heat pump |
CN113646534B (en) * | 2019-03-29 | 2023-05-23 | 松下电器制冷装置新加坡 | Suction muffler for reciprocating compressor and reciprocating compressor |
WO2020240048A1 (en) * | 2019-05-31 | 2020-12-03 | Arcelik Anonim Sirketi | A hermetic compressor comprising a suction muffler |
CN216812050U (en) * | 2021-10-25 | 2022-06-24 | 思科普有限责任公司 | Encapsulated refrigerant compressor |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US3209991A (en) * | 1963-12-16 | 1965-10-05 | Westinghouse Electric Corp | Sealed compressor unit assembly |
JPS61241472A (en) | 1985-04-16 | 1986-10-27 | Matsushita Refrig Co | Sealed type motor driven compressor |
JPS63280885A (en) * | 1987-05-12 | 1988-11-17 | Sanyo Electric Co Ltd | Enclosed rotary compressor |
JPH02146274A (en) | 1988-11-29 | 1990-06-05 | Toshiba Corp | Rotary compressor |
US5322419A (en) * | 1989-10-06 | 1994-06-21 | Arctic S.A. | Compressor for domestic refrigerators |
MY120330A (en) * | 1997-06-30 | 2005-10-31 | Matsushita Electric Ind Co Ltd | Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing |
JP3677412B2 (en) * | 1999-06-14 | 2005-08-03 | 松下冷機株式会社 | Hermetic electric compressor |
BR0105694B1 (en) * | 2001-10-29 | 2009-05-05 | suction filter for reciprocating airtight compressor. | |
JP4101505B2 (en) * | 2001-12-05 | 2008-06-18 | 松下冷機株式会社 | Hermetic compressor |
ATE423904T1 (en) | 2002-03-21 | 2009-03-15 | Arcelik As | HERMETIC COMPRESSOR |
JP4126213B2 (en) | 2002-09-13 | 2008-07-30 | 日立アプライアンス株式会社 | Positive displacement compressor |
WO2004057189A1 (en) * | 2002-12-20 | 2004-07-08 | Lg Electronics Inc. | Chamber for compressor and compressor using the same |
US6637216B1 (en) * | 2003-01-22 | 2003-10-28 | Bristol Compressors, Inc. | Compressor with internal accumulator for use in split compressor |
KR20050063599A (en) * | 2003-12-22 | 2005-06-28 | 삼성광주전자 주식회사 | Hermetic compressor |
JP2005282544A (en) | 2004-03-31 | 2005-10-13 | Fujitsu General Ltd | Scroll compressor |
-
2006
- 2006-05-22 AT AT0041106U patent/AT9232U1/en not_active IP Right Cessation
-
2007
- 2007-05-22 EP EP07729392A patent/EP2021632B1/en active Active
- 2007-05-22 DE DE502007001645T patent/DE502007001645D1/en active Active
- 2007-05-22 AT AT07729392T patent/ATE444445T1/en active
- 2007-05-22 WO PCT/EP2007/054953 patent/WO2007135152A1/en active Application Filing
- 2007-05-22 CN CN2007800186583A patent/CN101449059B/en active Active
- 2007-05-22 US US12/226,535 patent/US8740580B2/en active Active
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US20090175741A1 (en) | 2009-07-09 |
US8740580B2 (en) | 2014-06-03 |
CN101449059B (en) | 2011-09-07 |
EP2021632A1 (en) | 2009-02-11 |
DE502007001645D1 (en) | 2009-11-12 |
AT9232U1 (en) | 2007-06-15 |
WO2007135152A1 (en) | 2007-11-29 |
CN101449059A (en) | 2009-06-03 |
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