EP2021632A1 - Kältemittelverdichter - Google Patents
KältemittelverdichterInfo
- Publication number
- EP2021632A1 EP2021632A1 EP07729392A EP07729392A EP2021632A1 EP 2021632 A1 EP2021632 A1 EP 2021632A1 EP 07729392 A EP07729392 A EP 07729392A EP 07729392 A EP07729392 A EP 07729392A EP 2021632 A1 EP2021632 A1 EP 2021632A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor housing
- refrigerant
- channel
- suction channel
- pressure 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.)
- Granted
Links
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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
-
- 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
-
- 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 into the compressor housing or in one to the piston Zylmderemheit coupled Saugschalldampfer is requested and a pressure channel is provided, via which refrigerant is required by the piston-Zylmderemheit from the compressor housing, according to the preamble of claim 1.
- Such refrigerant compressors are used in household and industrial use, where they are usually located on the back of a refrigerator or Kuhlregals. Their task is to compress a refrigerant circulating in the cooling system and memorizufefernern, whereby heat dissipated from the interior of the refrigerator, discharged to the environment and a cooling room or Kuhlregal is thus cooled in a known manner.
- the refrigerant compressor has a hermetically sealed compressor housing and an electric motor, which drives a piston oscillating 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 Anschlußo réelleen, wherein a suction channel, a pressure channel and possibly other lines are provided which drove through the Anlageno réelleen in the compressor housing in and out of this to the refrigerant to the cylinder and this again in the Cooling cycle to demand.
- a suction silencer Before the refrigerant sucked in the suction channel enters the piston-cylinder unit, it is guided via a suction silencer, which has the task of absorbing or reducing the noise caused by the cold medium circulation and the piston and valve movements.
- an oil pump is provided, which supplies the piston Zylmderemheit with oil.
- the oil circulating within the compressor housing in this manner is swirled either via suitable nozzles or via rotational 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 discharged in the pressure channel, compressed refrigerant temperatures having up to 100 0 C, is also carried out a strong heating of the pressure channel, so the ejected from the piston-cylinder unit refrigerant to be as hot as possible conveyed out from the compressor housing.
- the oil flowing out of the compressor housing wall comes into contact with the hot pressure channel, the oil standing at a lower temperature level undesirably picks up heat and, since it circulates within the compressor housing, discharges it to the compressor housing, which causes 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 suction temperature of the refrigerant into the cylinder of the piston-cylinder unit, therefore, as well as the lowering of the temperature during the compression process and, associated with the Ausschiebetemperatur causes a reduction 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 by the suction liquid refrigerant or lubricant in a second, leading into the cylinder section of the suction pipe and so in the cylinder passes.
- the design of this baffle depends on the incoming gas in the compressor housing, whereby the plate can have relatively narrow dimensions.
- a generic refrigerant compressor has a hermetically sealed compressor housing, m whose interior a piston-cylinder unit compressing a refrigerant works, which is supplied via a mouth in the compressor housing or guided in the compressor housing suction channel with refrigerant and connected to a leading from the compressor housing pressure channel , 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 herabf jobdem on the compressor housing wall Ol with the suction channel or pressure channel.
- the arrangement of the deflection means according to the invention prevents heat exchange between the oil and the suction channel or pressure channel, in particular it prevents the oil flowing down from heating the suction channel and the pressure channel heating the oil flowing down.
- the deflection means are at least one guide 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, in that it can flow away or drip off along the longitudinal extension 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 Ol effected 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 descending oil from the immediate area of the suction channel or pressure channel by dividing the downflowing Olstrom 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 may have a umbrella-shaped configuration according to the characterizing features of claim 6, 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 forms an annular 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 rohrformig.
- the rohrformige cross-section of suction and pressure channel allows easy connection ebendon to the compressor housing by means provided in the compressor housing bores or a suitable connection element.
- Fig.l a base part of a compressor housing in
- FIG. 2 shows a partial sectional view of the compressor housing from FIG. 2 along lines AA and BB, respectively
- FIG. 4 shows a detail view of a deflection means according to the invention as viewed from D in
- FIG 5 shows a detailed view of a deflection means according to the invention in accordance with the viewing direction D from FIG
- FIG. 1 A-A and B-B from Fig.2 Fig.7 is a schematic representation of an inventive
- the present refrigerant compressor has a hermetically sealed compressor housing 1, into which a suction channel 2, a pressure channel 3 and a service tube 9 via Anschlußo réelleen 5 inside.
- a refrigerant flows via the suction channel 2, a refrigerant to a disposed inside 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 emunity again out of the compressor housing 1 out into a (also not shown) Kuhlniklauf a Kuhlraums leads.
- 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 channel 2 refrigerant passes through a coupled to the piston-Zylmderemheit suction silencer in the piston-cylinder unit to absorb the noise caused by the refrigerant circulation or the piston and valve movements.
- the suction channel 2 can either be free in the compressor housing mouth, 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 silencer, whereby the refrigerant is passed directly, via the suction silencer, in the piston-Zylmderemheit.
- the suction pipe usually projects slightly into the interior of the compressor housing.
- Suction channel 2 and pressure channel 3 are preferably rohrformig, 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 Kuhlgerats.
- FIG. 1 Although in this connection only one base part of a compressor housing 1 is shown in FIG. 1, on which a cover part (not shown) is subsequently placed, the compressor housing 1 can also be configured in another way, for example in the form of an obliquely divided or otherwise 1. It is likewise conceivable to drive suction channel 2, pressure channel 3 or service tube 9 into the interior of the compressor housing via the cover part, wherein suction channel 2, pressure channel 3 does not necessarily have to run alongside each other as shown in FIG in any offset arranged Anschlußo réelleen 5 of the compressor housing 1 mouths or combined from these.
- the service pipe 9 is only a factory-filling of the compressor housing 1 with a suitable gas or for filling with oil 4, the purpose of which is described below.
- 2 shows a plan view of the compressor housing 1 illustrated in FIG. 1 as an oblique view and, with the sectional guides AA and BB drawn therein, forms the reference of the partial sectional view shown in FIG. 3, which connects the suction channel 2 or pressure channel 3 to the Compressor housing 1 shows.
- 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 arranged in the compressor housing Anschlußo réelleen 10 through, wherein the connecting element 7 in turn is hermetically sealed to the suction channel 2 and Druckkanal 3.
- the attachment of the suction channel 2 / pressure channel 3 takes place at the connection element 7 or the connection element 7 on the compressor housing 1 by means of welding or soldering.
- a (not shown) oil pump is further arranged, the task of which is the already mentioned oil 4, with which the compressor housing 1 is filled, to claim the sliding parts of the piston-cylinder unit to lubricate this and to cool.
- the bearings of the connecting rod to the crankshaft and piston are supplied in this way continuously with circulating oil 4.
- the oil circulation also causes a cooling of the piston-cylinder unit and continuously dissipates the heat generated there during the compression of the refrigerant.
- 01 4 enters the cylinder head and enters together with the refrigerant in the Kuhlnikank.
- At least one deflection means is provided which the suction channel
- 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, wherein the distance from the deflection means to the suction channel 2 / pressure channel 3 or to the connecting element 7 surrounding 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 past the deflection means Ols 4 is again in the direction of the suction channel 2 / Spread pressure channel 3 and could come into contact with these.
- the deflecting means is designed as a main extension 5 protruding inward from the compressor housing wall.
- the guide extension 5 shields the suction channel 2 or the pressure channel 3 from the oil 4 flowing down the compressor housing wall 1, since it can flow off or drip off along the longitudinal extent of the conductive extension 5.
- the oil 4 thus passes through the immediate region of the passage of the suction channel 2 and the pressure channel 3 through the Rosso réelle 10 in the compressor housing wall 1, without coming into contact with the suction channel 2 and the pressure channel 3.
- the main 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 a 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 conductive extension 5 can also be V-shaped, for example.
- the tip of the V is arranged in the operating position of the compressor housing 1 above the suction channel 2 or pressure channel 3, so that the flowing down to the compressor housing wall stream of 01s 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.
- 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, that is to say with notches arranged along its longitudinal extension. In this way it is prevented that Olstrome creeping around the Leitfortsatz 5 to the suction channel 2 and Druckkanal 3 arrive (not shown).
- the section of the compressor housing wall extending above the contact point of the guide extension 5 with the compressor housing 1 can produce a described creep of the oil 4 in this case, the oil 4 'constituting a trickle 4 ' is guided along the inclination of the lead extension 5 according to the gravitational tendency.
- Leitfortsatzes 5 can be used as a deflection in an alternative embodiment of Figure 5 and 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.
- 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 causes the oil 4 flowing down the compressor housing wall and impinging on the profiled recess 6 to continue along the course of the recess 6 and laterally of the suction channel 2 or pressure channel 3, as shown in FIG is bypassed.
- Recess 6 is continuously above the suction channel 2 and
- Pressure channel 3 extends.
- the recess 6 may therefore have any curves and be performed, 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 Leitfortsatze 5 or recesses 6 may be necessary to completely exclude a contact of the descending oil 4 with the suction channel 2 and pressure channel 3 by drop formation and around the deflection creeping amounts of oil. If, for example, a recess 6 arranged approximately parallel to this is also provided below a guide extension 5, oil drops or creeping amounts of oil which overcome the guide extension 5 and move further in the direction of the suction channel 2 or pressure channel 3 are prevented from the recess 6 at the latest to contact the suction channel 2 and 3 pressure channel.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0041106U AT9232U1 (de) | 2006-05-22 | 2006-05-22 | Kältemittelverdichter |
PCT/EP2007/054953 WO2007135152A1 (de) | 2006-05-22 | 2007-05-22 | Kältemittelverdichter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2021632A1 true EP2021632A1 (de) | 2009-02-11 |
EP2021632B1 EP2021632B1 (de) | 2009-09-30 |
Family
ID=37943717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07729392A Active EP2021632B1 (de) | 2006-05-22 | 2007-05-22 | Kältemittelverdichter |
Country Status (6)
Country | Link |
---|---|
US (1) | US8740580B2 (de) |
EP (1) | EP2021632B1 (de) |
CN (1) | CN101449059B (de) |
AT (2) | AT9232U1 (de) |
DE (1) | DE502007001645D1 (de) |
WO (1) | WO2007135152A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0903956A2 (pt) * | 2009-01-09 | 2010-11-23 | Aurelio Mayorca | processo e equipamento para melhorar eficiência de compressores e refrigeradores |
CH704990A1 (de) * | 2011-05-20 | 2012-11-30 | Remo Meister | Verfahren zum Reparieren bzw. Überprüfen einer in einem druckdicht geschlossenen Behälter untergebrachten, insbesondere kältetechnischen Anlage sowie Behälter zur Durchführung des Verfahrens. |
CN104364526B (zh) * | 2012-06-11 | 2016-08-24 | 株式会社村田制作所 | 鼓风机 |
EP3147507A1 (de) * | 2015-09-25 | 2017-03-29 | BSH Hausgeräte GmbH | Drehkolbenverdichter für eine wärmepumpe |
WO2020204825A1 (en) * | 2019-03-29 | 2020-10-08 | Panasonic Appliances Refrigeration Devices Singapore | Suction muffler for reciprocating compressor |
WO2020240048A1 (en) * | 2019-05-31 | 2020-12-03 | Arcelik Anonim Sirketi | A hermetic compressor comprising a suction muffler |
CN216812050U (zh) * | 2021-10-25 | 2022-06-24 | 思科普有限责任公司 | 封装式制冷剂压缩机 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209991A (en) * | 1963-12-16 | 1965-10-05 | Westinghouse Electric Corp | Sealed compressor unit assembly |
JPS61241472A (ja) | 1985-04-16 | 1986-10-27 | Matsushita Refrig Co | 密閉型電動圧縮機 |
JPS63280885A (ja) * | 1987-05-12 | 1988-11-17 | Sanyo Electric Co Ltd | 密閉型回転圧縮機 |
JPH02146274A (ja) | 1988-11-29 | 1990-06-05 | Toshiba Corp | ロータリ圧縮機 |
US5322419A (en) | 1989-10-06 | 1994-06-21 | Arctic S.A. | Compressor for domestic refrigerators |
US6158995A (en) * | 1997-06-30 | 2000-12-12 | Matsushita Electric Industrial Co., Ltd. | Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing |
JP3677412B2 (ja) | 1999-06-14 | 2005-08-03 | 松下冷機株式会社 | 密閉型電動圧縮機 |
BR0105694B1 (pt) * | 2001-10-29 | 2009-05-05 | filtro de sucção para compressor hermético alternativo. | |
JP4101505B2 (ja) * | 2001-12-05 | 2008-06-18 | 松下冷機株式会社 | 密閉型圧縮機 |
ES2321499T3 (es) | 2002-03-21 | 2009-06-08 | Arcelik A.S. | Compresor hermetico. |
JP4126213B2 (ja) | 2002-09-13 | 2008-07-30 | 日立アプライアンス株式会社 | 容積型圧縮機 |
AU2002359019A1 (en) * | 2002-12-20 | 2004-07-14 | 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 (ko) * | 2003-12-22 | 2005-06-28 | 삼성광주전자 주식회사 | 밀폐형 압축기 |
JP2005282544A (ja) | 2004-03-31 | 2005-10-13 | Fujitsu General Ltd | スクロール圧縮機 |
-
2006
- 2006-05-22 AT AT0041106U patent/AT9232U1/de not_active IP Right Cessation
-
2007
- 2007-05-22 WO PCT/EP2007/054953 patent/WO2007135152A1/de active Application Filing
- 2007-05-22 DE DE502007001645T patent/DE502007001645D1/de active Active
- 2007-05-22 AT AT07729392T patent/ATE444445T1/de active
- 2007-05-22 US US12/226,535 patent/US8740580B2/en active Active
- 2007-05-22 EP EP07729392A patent/EP2021632B1/de active Active
- 2007-05-22 CN CN2007800186583A patent/CN101449059B/zh active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007135152A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8740580B2 (en) | 2014-06-03 |
DE502007001645D1 (de) | 2009-11-12 |
AT9232U1 (de) | 2007-06-15 |
CN101449059A (zh) | 2009-06-03 |
WO2007135152A1 (de) | 2007-11-29 |
ATE444445T1 (de) | 2009-10-15 |
EP2021632B1 (de) | 2009-09-30 |
US20090175741A1 (en) | 2009-07-09 |
CN101449059B (zh) | 2011-09-07 |
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