EP3775550B1 - A compressor with improved operational efficiency - Google Patents

A compressor with improved operational efficiency Download PDF

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Publication number
EP3775550B1
EP3775550B1 EP19714379.5A EP19714379A EP3775550B1 EP 3775550 B1 EP3775550 B1 EP 3775550B1 EP 19714379 A EP19714379 A EP 19714379A EP 3775550 B1 EP3775550 B1 EP 3775550B1
Authority
EP
European Patent Office
Prior art keywords
compressor
front cover
rear cover
muffler body
cover
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.)
Active
Application number
EP19714379.5A
Other languages
German (de)
French (fr)
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EP3775550A1 (en
Inventor
Mehmet Onur DINCER
Emre ORUC
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
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Filing date
Publication date
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Publication of EP3775550A1 publication Critical patent/EP3775550A1/en
Application granted granted Critical
Publication of EP3775550B1 publication Critical patent/EP3775550B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • 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
    • F04B39/127—Mounting of a cylinder block in a casing

Definitions

  • the present invention relates to a compressor.
  • the present invention relates to a compressor adapted to be used in cooler appliances.
  • a refrigerant compressed in a cylinder volume reaches high temperatures and pressures.
  • a refrigerant at high temperatures transmit heat to the interior of the compressor and to the components it contacts until it is discharged from the compressor. Heating of the components disposed in the inner volume of a compressor adversely affects the compressor's efficiency.
  • designs are present in which the mufflers through which the refrigerant at high temperatures passes, are isolated from a compressor's body and placed in a tube form on a vibration eliminator. Vibration eliminators are made of metal due to the fact that vibration eliminators are connected on compressors by means of bolts and high pressure gas passes therethrough.
  • Vibration eliminators being made of metal makes it necessary for the muffler body added thereon, to be also made of metal as well.
  • a muffler body being made of metal or a similar material with high thermal transmission properties increases the heat transferred into a compressor from the refrigerant of high temperatures and thereby decreases the efficiency of the compressor.
  • producing a muffler body from a non-metal material with a low thermal transmission coefficient would create difficulties in connecting the muffler body to vibration eliminators enabling gas intake to and discharge from the muffler body, which are joined to a muffler body by welding in the prior art.
  • a muffler body being made of metal restricts the possibility of creating complex duct designs for enhancing acoustic damping efficiency.
  • EP1942274B1 discloses a compressor.
  • EP3039292B1 discloses a compressor. Further prior art is disclosed by WO2014/059503 and JPS59147887 .
  • the aim of the present invention is to reduce the amount of heat transferred from a refrigerant at high temperatures passing through a compressor, to the components and the inner environment of the compressor, and to improve the operational efficiency of the compressor.
  • the compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a muffler body provided on a vibration eliminator, segmenting the vibration eliminator into two parts.
  • the muffler body is placed on the vibration eliminator by means of a front cover and a rear cover.
  • the vibration eliminator is fastened to the holes provided on the front cover and the rear cover by welding.
  • the muffler body positioned between said covers is fastened by the coupling member contacting the front cover and the rear cover and creating a pulling force between the front cover and the rear cover.
  • the compressor comprises a coupling member in the form of a screw, placed in the holes provided in the front cover and the rear cover, enabling fastening the front cover and the rear cover to each other on the muffler body, by being rotated.
  • a coupling member in the form of a screw, placed in the holes provided in the front cover and the rear cover, enabling fastening the front cover and the rear cover to each other on the muffler body, by being rotated.
  • the compressor comprises a coupling means having a cavity allowing the vibration eliminator to fit therein, extending along the muffler body while contacting the front cover and the rear cover.
  • Said coupling means is U-shaped and is produced to be biased. This enables exerting pressure on the front cover and the rear cover and fastening the muffler body between the front cover and the rear cover without welding application.
  • the compressor has a first frame and a second frame enclosing the periphery of the front cover and the rear cover.
  • the first frame and the second frame form a surface to enable at least one coupling means to rest on the periphery of the front cover and the rear cover. This enables fastening the muffler body between the front cover and the rear cover without welding application.
  • the compressor comprises a muffler body made of plastic.
  • the muffler body being made of plastic decreases the thermal conductivity, thereby reducing the heat transmitted to the inner environment and the components of the compressor, thus improving the operational efficiency of the compressor.
  • the present invention provides flexibility in design developments for enhancing acoustic damping efficiency in compressors by enabling the muffler bodies to be made of plastic or similar materials with low thermal conductivity, instead of metal.
  • the compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a body (3) on which the parts are gathered, a vibration eliminator (5) placed on the body (3) with one of its ends and whose other end is fastened on a terminal (4) provided on the housing (2) and opening to the outer environment, and a muffler body (8) provided on the vibration eliminator (5), segmenting the vibration eliminator (5) into two parts and placed on the vibration eliminator (5) by means of a front cover (6) and a rear cover (7).
  • the compressor (1) of the invention comprises a coupling member (9) exerting pressure on the front cover (6) and the rear cover (7) by contacting the front cover (6) and the rear cover (7), enabling the front cover (6) and the rear cover (7) to be rigidly fastened on the muffler body (8) almost completely immovably with respect to each other.
  • the muffler body (8) segments the vibration eliminator (5) into two parts.
  • the vibration eliminator (5) is fastened to the muffler body (8) by means of the front cover (6) and the rear cover (7).
  • the vibration eliminator (5) is placed into the holes provided on the front cover (6) and the rear cover (7).
  • the muffler body (8) is disposed in between the front cover (6) and the rear cover (7).
  • the front and rear covers (6, 7) are fastened immovably with respect to each other by a coupling member (9) extending between the front cover (6) and the rear cover (7), thereby fastening the muffler body (8) with a rigid structure.
  • the compressor (1) comprises a screw-shaped coupling member (9) enabling fastening the front cover (6) and the rear cover (7) to each other by passing through the holes disposed mutually on the front cover (6) and the rear cover (7).
  • the screw-shaped coupling member (9) placed through the holes provided on the surfaces of the front cover (6) and the rear cover (7) facing the muffler body (8), facilitates assembly and improves labor costs.
  • the screw-shaped coupling member (9) pulls the front cover (6) and the rear cover (7) against each other by being rotated, and the coupling member (9) is thus fastened by being compressed in between the front cover (6) and the rear cover (7).
  • the compressor (1) comprises a biased and U-shaped coupling member (9) having a first panel (11) and a second panel (12) extending partially on the front cover (6) and the rear cover (7), respectively, each having a cavity (10) allowing the vibration eliminator (5) to fit therein, and a third panel (13) extending along the muffler body (5) so as to connect the first panel (11) and the second panel (12) to each other.
  • the first panel (11) and the second panel (12) exert pressure on the front cover (6) and the rear cover (7), respectively, and are almost parallel to each other.
  • the front cover (6) and the rear cover (7) are placed on the vibration eliminator (5) by means of their cavities (10).
  • the first panel (11) and the second panel (12) are connected to each other by means of a third panel (13), forming all together the coupling member (9).
  • the coupling member (9) is U-shaped and made of a biased material, and thus exerts pressure on the front cover (6) and the rear cover (7), fastening the muffler body (8).
  • the compressor (1) of the invention comprises a first frame (14) and a second frame (15) placed vis-à-vis, enclosing the periphery of the front cover (6) and the rear cover (7), respectively, and at least one coupling member (9) extending in between the first frame (14) and the second frame (15).
  • the coupling member (9) enclosing the periphery of the front cover (6) and the rear cover (7) and act as a support for front cover (6) and the rear cover (7).
  • the compressor (1) of the invention comprises a muffler body (8) made of plastics.
  • the muffler body (8) made of plastic has low thermal conductivity and transmits a minimum amount of heat to the inner environment and the other components of the compressor (1) during operation of the compressor (1). This enables improving the operational efficiency of the compressor (1).
  • the compressor (1) of the invention enables the metal vibration eliminator (5) to be connected to the muffler body (8) made of plastic or similar material with low thermal conductivity, thereby improving the operational efficiency of the compressor (1), and making the muffler body (8) of plastic also enhances the acoustic damping characteristics thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Description

  • The present invention relates to a compressor. In particular, the present invention relates to a compressor adapted to be used in cooler appliances.
  • In compressors, a refrigerant compressed in a cylinder volume reaches high temperatures and pressures. A refrigerant at high temperatures transmit heat to the interior of the compressor and to the components it contacts until it is discharged from the compressor. Heating of the components disposed in the inner volume of a compressor adversely affects the compressor's efficiency. In order to mitigate this effect, designs are present in which the mufflers through which the refrigerant at high temperatures passes, are isolated from a compressor's body and placed in a tube form on a vibration eliminator. Vibration eliminators are made of metal due to the fact that vibration eliminators are connected on compressors by means of bolts and high pressure gas passes therethrough. Vibration eliminators being made of metal makes it necessary for the muffler body added thereon, to be also made of metal as well. However, a muffler body being made of metal or a similar material with high thermal transmission properties, increases the heat transferred into a compressor from the refrigerant of high temperatures and thereby decreases the efficiency of the compressor. On the other hand, producing a muffler body from a non-metal material with a low thermal transmission coefficient, would create difficulties in connecting the muffler body to vibration eliminators enabling gas intake to and discharge from the muffler body, which are joined to a muffler body by welding in the prior art. In addition, a muffler body being made of metal restricts the possibility of creating complex duct designs for enhancing acoustic damping efficiency.
  • State of the art patent document no. EP1942274B1 discloses a compressor.
  • State of the art patent document no. EP3039292B1 discloses a compressor. Further prior art is disclosed by WO2014/059503 and JPS59147887 .
  • The aim of the present invention is to reduce the amount of heat transferred from a refrigerant at high temperatures passing through a compressor, to the components and the inner environment of the compressor, and to improve the operational efficiency of the compressor.
  • The compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a muffler body provided on a vibration eliminator, segmenting the vibration eliminator into two parts. The muffler body is placed on the vibration eliminator by means of a front cover and a rear cover. The vibration eliminator is fastened to the holes provided on the front cover and the rear cover by welding. The muffler body positioned between said covers, is fastened by the coupling member contacting the front cover and the rear cover and creating a pulling force between the front cover and the rear cover. Thus, welding application is not required between the muffler body and the covers, assembly is facilitated and a wider range of material options can be used for making the muffler body.
  • In an alternative not claimed, the compressor comprises a coupling member in the form of a screw, placed in the holes provided in the front cover and the rear cover, enabling fastening the front cover and the rear cover to each other on the muffler body, by being rotated. Thus, it is no longer required to apply welding, facilitating assembly.
  • In an alternative not claimed, the compressor comprises a coupling means having a cavity allowing the vibration eliminator to fit therein, extending along the muffler body while contacting the front cover and the rear cover. Said coupling means is U-shaped and is produced to be biased. This enables exerting pressure on the front cover and the rear cover and fastening the muffler body between the front cover and the rear cover without welding application.
  • According to the invention, the compressor has a first frame and a second frame enclosing the periphery of the front cover and the rear cover. The first frame and the second frame form a surface to enable at least one coupling means to rest on the periphery of the front cover and the rear cover. This enables fastening the muffler body between the front cover and the rear cover without welding application.
  • In an embodiment of the invention, the compressor comprises a muffler body made of plastic. The muffler body being made of plastic decreases the thermal conductivity, thereby reducing the heat transmitted to the inner environment and the components of the compressor, thus improving the operational efficiency of the compressor.
  • The present invention provides flexibility in design developments for enhancing acoustic damping efficiency in compressors by enabling the muffler bodies to be made of plastic or similar materials with low thermal conductivity, instead of metal.
  • The compressor realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein:
    • Figure 1 is a perspective view of the compressor.
    • Figure 2 is a perspective view of the body.
    • Figure 3 is an exploded perspective view of an alternative.
    • Figure 4 is an exploded side view of an alternative.
    • Figure 5 is an exploded perspective view of an alternative.
    • Figure 6 is a side view of an alternative.
    • Figure 7 is a side view of an embodiment of the invention.
    • Figure 8 is an exploded perspective view of an embodiment of the invention.
  • The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
    • 1. Compressor
    • 2. Housing
    • 3. Body
    • 4. Terminal
    • 5. Vibration eliminator
    • 6. Front cover
    • 7. Rear cover
    • 8. Muffler body
    • 9. Coupling member
    • 10. Cavity
    • 11. First panel
    • 12. Second panel
    • 13. Third panel
    • 14. First frame
    • 15. Second frame
  • The compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a body (3) on which the parts are gathered, a vibration eliminator (5) placed on the body (3) with one of its ends and whose other end is fastened on a terminal (4) provided on the housing (2) and opening to the outer environment, and a muffler body (8) provided on the vibration eliminator (5), segmenting the vibration eliminator (5) into two parts and placed on the vibration eliminator (5) by means of a front cover (6) and a rear cover (7).
  • The compressor (1) of the invention comprises a coupling member (9) exerting pressure on the front cover (6) and the rear cover (7) by contacting the front cover (6) and the rear cover (7), enabling the front cover (6) and the rear cover (7) to be rigidly fastened on the muffler body (8) almost completely immovably with respect to each other. The muffler body (8) segments the vibration eliminator (5) into two parts. The vibration eliminator (5) is fastened to the muffler body (8) by means of the front cover (6) and the rear cover (7). The vibration eliminator (5) is placed into the holes provided on the front cover (6) and the rear cover (7). The muffler body (8) is disposed in between the front cover (6) and the rear cover (7). The refrigerant reaching the muffler body (8) from the vibration eliminator (5) by means of the front cover (6), is transmitted to the vibration eliminator (5) by means of the hole provided on the rear cover (7). The front and rear covers (6, 7) are fastened immovably with respect to each other by a coupling member (9) extending between the front cover (6) and the rear cover (7), thereby fastening the muffler body (8) with a rigid structure.
  • In an alternative , the compressor (1) comprises a screw-shaped coupling member (9) enabling fastening the front cover (6) and the rear cover (7) to each other by passing through the holes disposed mutually on the front cover (6) and the rear cover (7). The screw-shaped coupling member (9) placed through the holes provided on the surfaces of the front cover (6) and the rear cover (7) facing the muffler body (8), facilitates assembly and improves labor costs. The screw-shaped coupling member (9) pulls the front cover (6) and the rear cover (7) against each other by being rotated, and the coupling member (9) is thus fastened by being compressed in between the front cover (6) and the rear cover (7).
  • In another alternative, the compressor (1) comprises a biased and U-shaped coupling member (9) having a first panel (11) and a second panel (12) extending partially on the front cover (6) and the rear cover (7), respectively, each having a cavity (10) allowing the vibration eliminator (5) to fit therein, and a third panel (13) extending along the muffler body (5) so as to connect the first panel (11) and the second panel (12) to each other. The first panel (11) and the second panel (12) exert pressure on the front cover (6) and the rear cover (7), respectively, and are almost parallel to each other. The front cover (6) and the rear cover (7) are placed on the vibration eliminator (5) by means of their cavities (10). The first panel (11) and the second panel (12) are connected to each other by means of a third panel (13), forming all together the coupling member (9). The coupling member (9) is U-shaped and made of a biased material, and thus exerts pressure on the front cover (6) and the rear cover (7), fastening the muffler body (8).
  • The compressor (1) of the invention, comprises a first frame (14) and a second frame (15) placed vis-à-vis, enclosing the periphery of the front cover (6) and the rear cover (7), respectively, and at least one coupling member (9) extending in between the first frame (14) and the second frame (15). The coupling member (9) enclosing the periphery of the front cover (6) and the rear cover (7) and act as a support for front cover (6) and the rear cover (7). By this, the front cover (6), the rear cover (7) and the vibration eliminator (5) made of metal are easily assembled on the muffler body (8).
  • The compressor (1) of the invention comprises a muffler body (8) made of plastics. The muffler body (8) made of plastic, has low thermal conductivity and transmits a minimum amount of heat to the inner environment and the other components of the compressor (1) during operation of the compressor (1). This enables improving the operational efficiency of the compressor (1).
  • The compressor (1) of the invention enables the metal vibration eliminator (5) to be connected to the muffler body (8) made of plastic or similar material with low thermal conductivity, thereby improving the operational efficiency of the compressor (1), and making the muffler body (8) of plastic also enhances the acoustic damping characteristics thereof.

Claims (2)

  1. A compressor (1) comprising a housing (2) enclosing the movable parts, a body (3) on which the parts are gathered, a vibration eliminator (5) placed on the body (3) with one of its ends, whose other end is fastened on a terminal (4) provided on the housing (2) and opening to the outer environment, and a muffler body (8) provided on the vibration eliminator (5), segmenting the vibration eliminator (5) into two parts and placed on the vibration eliminator (5) by means of a front cover (6) and a rear cover (7), characterized by comprising a coupling member (9) exerting pressure on the front cover (6) and the rear cover (7), enabling the front cover (6) and the rear cover (7) to be rigidly fastened on the muffler body (8) almost completely immovably with respect to each other, a first frame (14) and a second frame (15) placed vis-à-vis, enclosing the periphery of the front cover (6) and the rear cover (7) respectively, and by the at least one coupling member (9) extending in between the first frame (14) and the second frame (15).
  2. A compressor (1) according to claim 1, characterized by the muffler body (8) made of plastic.
EP19714379.5A 2018-04-04 2019-03-26 A compressor with improved operational efficiency Active EP3775550B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201804743 2018-04-04
PCT/EP2019/057576 WO2019192893A1 (en) 2018-04-04 2019-03-26 A compressor with improved operational efficiency

Publications (2)

Publication Number Publication Date
EP3775550A1 EP3775550A1 (en) 2021-02-17
EP3775550B1 true EP3775550B1 (en) 2022-09-07

Family

ID=65991799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19714379.5A Active EP3775550B1 (en) 2018-04-04 2019-03-26 A compressor with improved operational efficiency

Country Status (3)

Country Link
EP (1) EP3775550B1 (en)
PL (1) PL3775550T3 (en)
WO (1) WO2019192893A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147887A (en) * 1983-02-09 1984-08-24 Hitachi Ltd Muffler fixing structure for enclosed motor compressor
JP4330576B2 (en) 2005-10-28 2009-09-16 サンデン株式会社 Compressor
WO2014053368A1 (en) * 2012-10-05 2014-04-10 Arcelik Anonim Sirketi Compressor comprising connection member
WO2014059503A1 (en) * 2012-10-18 2014-04-24 Whirlpool S.A. Hermetically sealed pipe for a compressor and hermetically sealed compressor
EP3039292B1 (en) 2013-08-29 2017-11-01 Arçelik Anonim Sirketi Thermally improved reciprocating hermetic compressor
CN106460817B (en) * 2014-03-31 2019-02-01 阿塞里克股份有限公司 For thermal insulation neck bush used in the exhaust silencer in hermetic reciprocating compressor
KR102300252B1 (en) * 2016-05-03 2021-09-09 엘지전자 주식회사 linear compressor

Also Published As

Publication number Publication date
WO2019192893A1 (en) 2019-10-10
PL3775550T3 (en) 2023-01-09
EP3775550A1 (en) 2021-02-17

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