WO2016066213A1 - Silencieux d'aspiration amélioré à utiliser dans un compresseur hermétiquement clos d'un appareil de réfrigération - Google Patents

Silencieux d'aspiration amélioré à utiliser dans un compresseur hermétiquement clos d'un appareil de réfrigération Download PDF

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Publication number
WO2016066213A1
WO2016066213A1 PCT/EP2014/073427 EP2014073427W WO2016066213A1 WO 2016066213 A1 WO2016066213 A1 WO 2016066213A1 EP 2014073427 W EP2014073427 W EP 2014073427W WO 2016066213 A1 WO2016066213 A1 WO 2016066213A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction muffler
shell
cavity
hermetically sealed
refrigerant
Prior art date
Application number
PCT/EP2014/073427
Other languages
English (en)
Inventor
Sarper Marasli
Cihan Gunduz
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to PCT/EP2014/073427 priority Critical patent/WO2016066213A1/fr
Publication of WO2016066213A1 publication Critical patent/WO2016066213A1/fr

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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
    • F04B39/0055—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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/063—Sound absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material

Definitions

  • the present invention relates to a hermetically sealed compressor of a refrigeration appliance such as a domestic refrigerator.
  • the present invention particularly relates to the suction muffler of the hermetically sealed compressor.
  • Hermetically sealed compressors which are used in domestic refrigerators are commonly known.
  • a hermetically sealed compressor generally comprises a reciprocating mechanism which conveys the refrigerant from the evaporator side to the condenser side.
  • the flow of the refrigerant and the moving parts of the reciprocating mechanism generate vibrations and noise.
  • the refrigerant is generally passed through a suction muffler which is disposed into the hermetically sealed compressor on an upstream side of the valve plate.
  • the suction mufflers which are used in hermetically sealed compressors are commonly known.
  • a suction muffler usually comprises a shell, at least one cavity inside the shell, an inlet port for admitting the refrigerant into the cavity and an outlet port for discharging the refrigerant out of the cavity.
  • An objective of the present invention is to provide a suction muffler for use in a hermetically sealed compressor of a refrigeration appliance which overcomes the aforementioned drawbacks of the prior art in a cost effective way and which enables a low noise operation.
  • the cavity is enclosed by an unsmooth surface which has a plurality of raised portions for acoustically damping the refrigerant which flows through the cavity.
  • the reduction in the noise level attained by the cavity has been further increased by virtue of the unsmooth surface in a similar way as in anechoic chambers.
  • the raised portions increase the total surface area of the cavity.
  • the sound waves propagating in the refrigerant encounter an increased number of successive impingements on the unsmooth surface of the cavity and thus, attenuate stronger.
  • the suction muffler of the present invention the noise generated by the flow of the refrigerant can be reduced to desired and bearable levels which comply with the standards without compromising the overall size of the compressor.
  • the refrigeration appliance can be prevented from causing any acoustic discomfort to the user.
  • the customer satisfaction can be increased.
  • the unsmooth surface is immediately formed into the interior of the shell. Thereby, the noise reduction capability of the cavity inside the shell has been further improved.
  • the unsmooth surface is immediately formed into the interior of a separate inner covering instead of the shell.
  • the suction muffler is retrofitted with the inner covering for improving the noise reduction of the cavity of the shell.
  • the inner covering is also useful in acoustically decoupling the unsmooth surface from the shell.
  • the shell and the inner covering are manufactured from the same material or alternatively from different materials for example with different thermal properties and/or acoustic properties.
  • the unsmooth surface is immediately formed into the interior of a separate inner layer instead of the inner covering and the shell.
  • the inner layer is fixed onto the interior of the inner covering.
  • the suction muffler is retrofitted with the inner covering which has the inner layer fixed thereon.
  • the inner covering and the inner layer are manufactured from the same material or alternatively from different materials as mentioned above.
  • the suction muffler is manufactured from thermal insulation materials and/or plastic materials.
  • the raised portions are arranged in one or more than one two-dimensional arrays.
  • the raised portion has a pyramidal shape.
  • the raised portion alternatively has a wedge shape, a knobbed shape or the like.
  • Figure 1 – is a schematic perspective view of a hermetically sealed compressor which has a suction muffler according to an embodiment of the present invention
  • Figure 2 – is a schematic partial exploded perspective view of the suction muffler according to an embodiment of the present invention
  • Figure 3 – is a schematic enlarged view of the detail A of Fig. 2,
  • Figure 4 – is another schematic partial exploded perspective view of the suction muffler according to an embodiment of the present invention.
  • Figure 5 – is another schematic partial exploded view of the suction muffler according to an embodiment of the present invention.
  • the suction muffler (1) is suitable for use in the hermetically sealed compressor (2) of a refrigeration appliance, in particular a domestic refrigerator.
  • the suction muffler (1) comprises a shell (3), at least one cavity (4) inside the shell (3), an inlet port (5) for admitting the refrigerant into the cavity (4) and an outlet port (6) for discharging the refrigerant out of the cavity (4) (Fig. 1 to 5).
  • the cavity (4) is enclosed by an unsmooth surface (7).
  • the unsmooth surface (7) has a plurality of raised portions (8) for acoustically damping the refrigerant which flows through the cavity (4).
  • the hermetically sealed compressor (2) of the present invention comprises the suction muffler (1).
  • the refrigeration appliance (not shown) of the present invention comprises the hermetically sealed compressor (2).
  • the unsmooth surface (7) is defined by the interior of the shell (3). In this embodiment, the unsmooth surface (7) is immediately formed into the interior of the shell (3) during the manufacturing process.
  • the suction muffler (1) comprises an inner covering (9) which is installed into the shell (3).
  • the unsmooth surface (7) is defined by the interior of the inner covering (9) instead of the shell (3).
  • the unsmooth surface (7) is immediately formed into the interior of the inner covering (9) during the manufacturing process.
  • the inner covering (9) is subsequently assembled with the shell (3) (Fig. 1 to 5).
  • the suction muffler (1) can be easily retrofitted with the unsmooth surface (7) for improving the noise reduction.
  • the unsmooth surface (7) can be acoustically decoupled from the shell (3).
  • the suction muffler (1) comprises an inner covering (9) which is installed into the shell (3) and an inner layer (10) which is fixed onto the interior of the inner covering (9).
  • the unsmooth surface (7) is defined by the interior of the inner layer (10) instead of the inner covering (9) and the shell (3).
  • the unsmooth surface (7) is immediately formed into the interior of the inner layer (10) during the manufacturing process.
  • the inner layer (10) is subsequently assembled with the inner covering (9) and the shell (3).
  • the inner layer (10) is manufactured from a thermal insulation material.
  • the inner covering (9) is manufactured from a thermal insulation material.
  • the thermal insulation material comprises a heat-resistant durable resin.
  • the inner covering (9) has three pieces, namely a top part (9a), a bottom part (9b) and a circumferential part (9c) which fit the interior of the shell (3).
  • the shell (3) is manufactured from a heat-resistant durable plastic.
  • the plurality of raised portions (8) are arranged in one or more than one two-dimensional arrays which enclose the cavity (4).
  • each raised portion (8) has a pyramidal shape or a truncated pyramidal shape.
  • the raised portion (8) has a wedged shape, a knobbed or the like.
  • the shell (3) has two pieces, namely an upper part (3a) and a lower part (3b) which are releasably attachable to each other.
  • the inlet port (5) is on the lower part (3a) and the outlet port (6) is on the upper part (3b).
  • the inlet port (5) and the outlet port (6) are located on different sides of the shell (3) which do not oppose each other.
  • the upper part (3a) of the shell (3) has one or more than one slots (11) and the lower part (3b) of the shell (3) has one or more than one claw (12) for snap fitting into the corresponding slot (11).
  • the compressor (2) is hermetically sealed by the upper casing (13) and the lower casing (14).
  • the lower casing (14) serves as the lubricant sump (15).
  • An oil pickup-tube (16) is partly immersed into the lubricant sump (15).
  • the motor (17) has a stator (18) and a rotor (19).
  • the crankshaft (20) is journalled to the main bearing (21) on the cylinder block (22) and fixed to the rotor (19).
  • the piston (23) is reciprocatingly disposed into the cylinder bore (24) for compressing the refrigerant therein.
  • the piston (23) is coupled via the connecting rod (25) and the pin (26) to the crankshaft (20).
  • the cylinder bore (24) is covered by the cylinder head (27).
  • the compressed refrigerant enters the exhaust chamber (28) of the cylinder head (27) via the exhaust port (29) of the valve (30) which is arranged between the cylinder head (27) and the cylinder block (22).
  • the piston (23) moves rearwards, the refrigerant is sucked from the suction muffler (1) and through the intake port (31) of the valve plate (30) into the cylinder bore (24).
  • the noise is mainly generated in the vicinity of the intake port (31) and the exhaust port (29) of the valve plate (30) under the influence of the reciprocating movement of the piston (23).
  • the suction muffler (1) attenuates the acoustic waves generated inside the refrigerant which flows through the cavity (4).
  • the suction muffler (1) is mounted to the cylinder head (27) at a location upstream of the valve plate (30).
  • the refrigeration appliance is provided as a domestic refrigerator.
  • the noise level of the hermetically sealed compressor (2) can be reduced to desired levels in a cost effective way.
  • a refrigeration appliance has been provided which has a low noise emission. Thereby, the customer satisfaction can be increased.

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

Abstract

La présente invention concerne un silencieux d'aspiration (1) à utiliser dans un compresseur hermétiquement clos (2) d'un appareil de réfrigération. Le silencieux d'aspiration (1) comprend une enveloppe (3), une cavité (4) à l'intérieur de l'enveloppe (3), un orifice d'entrée (5) pour l'admission du réfrigérant dans la cavité (4) et un orifice de sortie (6) pour l'évacuation du réfrigérant hors de la cavité (4). Dans le silencieux d'aspiration (1) de la présente invention, la cavité (4) est entourée par une surface irrégulière (7) qui présente une pluralité de parties surélevées (8) destinées à l'amortissement acoustique du réfrigérant qui s'écoule à travers la cavité (4).
PCT/EP2014/073427 2014-10-31 2014-10-31 Silencieux d'aspiration amélioré à utiliser dans un compresseur hermétiquement clos d'un appareil de réfrigération WO2016066213A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/073427 WO2016066213A1 (fr) 2014-10-31 2014-10-31 Silencieux d'aspiration amélioré à utiliser dans un compresseur hermétiquement clos d'un appareil de réfrigération

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/073427 WO2016066213A1 (fr) 2014-10-31 2014-10-31 Silencieux d'aspiration amélioré à utiliser dans un compresseur hermétiquement clos d'un appareil de réfrigération

Publications (1)

Publication Number Publication Date
WO2016066213A1 true WO2016066213A1 (fr) 2016-05-06

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PCT/EP2014/073427 WO2016066213A1 (fr) 2014-10-31 2014-10-31 Silencieux d'aspiration amélioré à utiliser dans un compresseur hermétiquement clos d'un appareil de réfrigération

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WO (1) WO2016066213A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019192886A1 (fr) * 2018-04-03 2019-10-10 Arcelik Anonim Sirketi Culasse améliorée utilisée dans un compresseur hermétiquement clos d'un appareil de réfrigération
CN110805558A (zh) * 2019-10-24 2020-02-18 珠海格力节能环保制冷技术研究中心有限公司 消音器、压缩机和空调器
EP3783224A3 (fr) * 2019-08-23 2021-03-03 LG Electronics Inc. Compresseur linéaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020017425A1 (en) * 2000-07-13 2002-02-14 Sang-Heon Yoon Suction muffler of reciprocating compressor
US20020035844A1 (en) * 2000-09-28 2002-03-28 Lee In Seop Suction muffler for compressor
WO2007027168A1 (fr) * 2005-08-29 2007-03-08 Carrier Corporation Silencieux pour compresseur
WO2007124552A1 (fr) * 2006-05-03 2007-11-08 Whirlpool S.A. Dispositif résonateur dans un silencieux acoustique pour un compresseur de réfrigération
US20110002775A1 (en) * 2008-04-22 2011-01-06 Panasonic Ecology Systems Guangdong Co., Ltd. Centrifugal fan and noise reduction method in centrifugal fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020017425A1 (en) * 2000-07-13 2002-02-14 Sang-Heon Yoon Suction muffler of reciprocating compressor
US20020035844A1 (en) * 2000-09-28 2002-03-28 Lee In Seop Suction muffler for compressor
WO2007027168A1 (fr) * 2005-08-29 2007-03-08 Carrier Corporation Silencieux pour compresseur
WO2007124552A1 (fr) * 2006-05-03 2007-11-08 Whirlpool S.A. Dispositif résonateur dans un silencieux acoustique pour un compresseur de réfrigération
US20110002775A1 (en) * 2008-04-22 2011-01-06 Panasonic Ecology Systems Guangdong Co., Ltd. Centrifugal fan and noise reduction method in centrifugal fan

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019192886A1 (fr) * 2018-04-03 2019-10-10 Arcelik Anonim Sirketi Culasse améliorée utilisée dans un compresseur hermétiquement clos d'un appareil de réfrigération
EP3783224A3 (fr) * 2019-08-23 2021-03-03 LG Electronics Inc. Compresseur linéaire
US11781540B2 (en) 2019-08-23 2023-10-10 Lg Electronics Inc. Linear compressor
CN110805558A (zh) * 2019-10-24 2020-02-18 珠海格力节能环保制冷技术研究中心有限公司 消音器、压缩机和空调器

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