EP1714033B1 - A compressor - Google Patents

A compressor Download PDF

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Publication number
EP1714033B1
EP1714033B1 EP04806630A EP04806630A EP1714033B1 EP 1714033 B1 EP1714033 B1 EP 1714033B1 EP 04806630 A EP04806630 A EP 04806630A EP 04806630 A EP04806630 A EP 04806630A EP 1714033 B1 EP1714033 B1 EP 1714033B1
Authority
EP
European Patent Office
Prior art keywords
muffler
suction
opening
refrigerant
chambers
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
EP04806630A
Other languages
German (de)
French (fr)
Other versions
EP1714033A1 (en
Inventor
Atilla Arcelik Anonim Sirketi KAYA
Serkan Arcelik Anonim Sirketi KARA
Tolga Arcelik Anonim Sirketi YAROGLU
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
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 AS filed Critical Arcelik AS
Publication of EP1714033A1 publication Critical patent/EP1714033A1/en
Application granted granted Critical
Publication of EP1714033B1 publication Critical patent/EP1714033B1/en
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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

Definitions

  • This invention relates to a compressor wherein a suction muffler minimizes the noise generated during the refrigeration cycle by the refrigerant.
  • cooling is achieved by circulating a refrigerant in a cycle that generally consists of a condenser, which transfers the heat out, a pressure reducer used to regulate the pressure, an evaporator absorbing the heat and a compressor.
  • a compressor used in the afore-mentioned cycle, suction mufflers are utilized whereby the refrigerant used to achieve the cooling reaches to the cylinder block without being heated and the noise that might be generated by the refrigerant is prevented.
  • the suction muffler is generally manufactured from plastic material and located either on the cylinder head or between the cylinder head and the valve plate.
  • the refrigerant- sucked reaches-a cylinder block- by- passing- through a muffler wherein its portion forming the suction manifold is placed inside the cylinder head. In the meantime it is necessary to minimize the noise at different frequencies generated.
  • the aim of the present invention is the realization of a compressor comprising a suction muffler whereby the noise that is generated by the refrigerant is minimized.
  • the circulation of the refrigerant used to realize the cooling is achieved by means of a compressor (1).
  • the compressor (1) comprises a cylinder (2) which provides the pumping of the refrigerant in it, a cylinder head (3) located on the cylinder (2), through which the refrigerant that is sucked and discharged is circulated, a valve plate (5) on which the cylinder head (3) is placed, a suction muffler (4) preferably made of plastic material, which ensures that the refrigerant with reduced acoustical energy circulated inside it reaches the cylinder block without being heated and that the noise which might be generated by the refrigerant is prevented.
  • the suction muffler (4) comprises a muffler head (8) whereby the muffler (4) is attached to the cylinder head (3), a muffler outlet opening (6) located above the muffler head (8) and providing the refrigerant to pass to the cylinder (2), at least two muffler chambers (12) having different volumetric resonance frequencies to achieve acoustic attenuation at different frequencies, wherein acoustical energy is reduced, a suction opening (9) permitting the refrigerant to enter through, a flow pipe (10) preferably with quadrangular cross-section, placed across the suction opening (9) and the muffler outlet opening (6) and, the ends of which open to different muffler chambers (12), an aperture (7) on the flow pipe (10), at least one attenuation conduit (13) preferably with circular cross-section, wherein its portions in the muffler chambers which its inlet and outlet openings communicate with, have different cross-sectional areas and whereby the connection between the muffler chamber
  • the flow pipe (10) comprises a flow pipe inlet opening (14) located across the suction opening (9) and a flow pipe outlet opening (15) located across the muffler outlet opening (6).
  • the attenuation conduit (13), which communicates the muffler chambers (12) by connecting them, comprises an attenuation conduit inlet opening (16), which, extending to one of the muffler chambers (12), which is closer to the suction outlet opening (6) and, attenuating the sound waves at undesired frequencies by the cross-sectional area (A5) thereof and; an attenuation conduit outlet opening (17) with a different cross-sectional area (A6) than that of the attenuation conduit inlet opening (16).
  • the cross-sectional area which the flow passes through continuously increases downstream, from the suction opening (9) on the suction muffler (4) to the suction outlet opening (6), in order to minimize the factors which would retard the flow of the refrigerant and would reduce thermodynamic efficiency of the suction muffler (4) by causing pressure losses. Thereby, it is minimized that the uniform flow is disturbed due to the-reductions in the cross-section, to the boundary layer conditions or, while passing by inclined or bent regions.
  • cross-sectional area (A1) of the suction opening (9) outside the muffler chamber (12), is smaller than that (A2) of the flow pipe inlet opening (14), and cross-sectional area (A3) of the flow pipe outlet opening (15) is smaller than that (A4) of the muffler outlet opening (6) inside the muffler chamber (12).
  • the suction muffler (4) comprises a muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6), a third muffler chamber (12) with a different volumetric resonance frequency located between the two other muffler chambers (12) and an attenuation conduit (13) communicating with the third and second muffler chambers (12) (Fig. 3).
  • the suction muffler (4) comprises a muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6) and, an attenuation conduit (13) communicating with the first and second muffler chambers (12) (Fig. 4).
  • the suction muffler (4) comprises a first muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6), a third muffler chamber (12) with a different volumetric resonance frequency than that of the two other muffler chambers (12) and which is located between the first and the second muffler chambers (12) and, three attenuation conduits (13) which communicate with the third and second muffler chambers (12) and having different cross-sectional areas thereby minimizing the noise at different frequencies (Fig. 5).
  • the suction-muffler (4) comprises-one or more guiding members (11) extending from the suction opening (9) to the first muffler chamber (12) whereby the refrigerant sucked is routed to the flow pipe (10) and the refrigerant in the flow pipe (10) is routed to the muffler outlet opening (6) (Fig. 6).
  • the suction muffler (4) comprises a first muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6), a third and fourth muffler chambers (12) with different volumetric resonance frequencies and which are located between the first and the second muffler chambers (12), an attenuation conduit (13) communicating with the third and second muffler chambers (12), and another attenuation conduit (13) communicating with the second and fourth muffler chambers (12) and having different cross-sectional areas than that of the other one thereby minimizing the noise at different frequencies (Fig. 7).

Abstract

This invention relates to a suction muffler (4) used preferably in compressors (1) and whereby the noise generated during the refrigeration cycle by the refrigerant is minimized.

Description

  • This invention relates to a compressor wherein a suction muffler minimizes the noise generated during the refrigeration cycle by the refrigerant.
  • In refrigerators, cooling is achieved by circulating a refrigerant in a cycle that generally consists of a condenser, which transfers the heat out, a pressure reducer used to regulate the pressure, an evaporator absorbing the heat and a compressor. In the compressors used in the afore-mentioned cycle, suction mufflers are utilized whereby the refrigerant used to achieve the cooling reaches to the cylinder block without being heated and the noise that might be generated by the refrigerant is prevented. The suction muffler is generally manufactured from plastic material and located either on the cylinder head or between the cylinder head and the valve plate. The refrigerant- sucked, reaches-a cylinder block- by- passing- through a muffler wherein its portion forming the suction manifold is placed inside the cylinder head. In the meantime it is necessary to minimize the noise at different frequencies generated.
  • In the current state of the art, in the United States Patent Documents US5101931 or EP 0 027 311 A , a description is given of a muffler minimizing the noise wherein its two chambers are connected by a tube.
  • In the current state of the art, in the United States Patent Document US5341654 , a description is given of a muffler minimizing the noise at different frequencies by means of its two chambers, which have inlets with different diameters.
  • The aim of the present invention is the realization of a compressor comprising a suction muffler whereby the noise that is generated by the refrigerant is minimized.
  • The compressor designed to fulfill the objectives of the present invention is illustrated on the attached figures where:
    • Fig. 1 - is a cross-sectional view of a compressor.
    • Fig.2 - is a perspective view of a suction muffler.
    • Fig.3 - is a schematic representation of a suction muffler comprising an attenuation conduit and three muffler chambers.
    • Fig.4 - is a schematic representation of a suction muffler comprising an attenuation conduit and two muffler chambers.
    • Fig.5 - is a schematic representation of a suction muffler comprising three attenuation conduits and three muffler chambers.
    • Fig.6 - is a schematic representation of a suction muffler with several guides at the inlet and outlet openings and comprising three attenuation conduits and two muffler chambers.
    • Fig.7 - is a schematic representation of a suction muffler comprising two attenuation conduits which connect different chambers to each other and, four muffler chambers.
  • Elements shown on figures are numbered as follows:
    • 1-
    Compressor
    2-
    Cylinder
    3-
    Cylinder head
    4-
    Suction muffler
    5-
    Valve plate
    6-
    Muffler outlet opening
    7-
    Aperture
    8-
    Muffler head
    9-
    Suction opening
    10-
    Flow pipe
    11-
    Guiding member
    12-
    Muffler chamber
    13-
    Attenuation conduit
    14-
    Flow pipe inlet opening
    15-
    Flow pipe outlet opening
    16-
    Attenuation conduit inlet opening
    17-
    Attenuation conduit outlet opening
  • In household appliances, preferably in cooling devices, the circulation of the refrigerant used to realize the cooling, is achieved by means of a compressor (1).
  • The compressor (1) comprises a cylinder (2) which provides the pumping of the refrigerant in it, a cylinder head (3) located on the cylinder (2), through which the refrigerant that is sucked and discharged is circulated, a valve plate (5) on which the cylinder head (3) is placed, a suction muffler (4) preferably made of plastic material, which ensures that the refrigerant with reduced acoustical energy circulated inside it reaches the cylinder block without being heated and that the noise which might be generated by the refrigerant is prevented.
  • The suction muffler (4) comprises a muffler head (8) whereby the muffler (4) is attached to the cylinder head (3), a muffler outlet opening (6) located above the muffler head (8) and providing the refrigerant to pass to the cylinder (2), at least two muffler chambers (12) having different volumetric resonance frequencies to achieve acoustic attenuation at different frequencies, wherein acoustical energy is reduced, a suction opening (9) permitting the refrigerant to enter through, a flow pipe (10) preferably with quadrangular cross-section, placed across the suction opening (9) and the muffler outlet opening (6) and, the ends of which open to different muffler chambers (12), an aperture (7) on the flow pipe (10), at least one attenuation conduit (13) preferably with circular cross-section, wherein its portions in the muffler chambers which its inlet and outlet openings communicate with, have different cross-sectional areas and whereby the connection between the muffler chambers (12) is accomplished and acoustical energy is bypassed.
  • The flow pipe (10) comprises a flow pipe inlet opening (14) located across the suction opening (9) and a flow pipe outlet opening (15) located across the muffler outlet opening (6).
  • The attenuation conduit (13), which communicates the muffler chambers (12) by connecting them, comprises an attenuation conduit inlet opening (16), which, extending to one of the muffler chambers (12), which is closer to the suction outlet opening (6) and, attenuating the sound waves at undesired frequencies by the cross-sectional area (A5) thereof and; an attenuation conduit outlet opening (17) with a different cross-sectional area (A6) than that of the attenuation conduit inlet opening (16).
  • The cross-sectional area which the flow passes through, continuously increases downstream, from the suction opening (9) on the suction muffler (4) to the suction outlet opening (6), in order to minimize the factors which would retard the flow of the refrigerant and would reduce thermodynamic efficiency of the suction muffler (4) by causing pressure losses. Thereby, it is minimized that the uniform flow is disturbed due to the-reductions in the cross-section, to the boundary layer conditions or, while passing by inclined or bent regions. For this reason, cross-sectional area (A1) of the suction opening (9) outside the muffler chamber (12), is smaller than that (A2) of the flow pipe inlet opening (14), and cross-sectional area (A3) of the flow pipe outlet opening (15) is smaller than that (A4) of the muffler outlet opening (6) inside the muffler chamber (12).
  • In another application of the present invention, the suction muffler (4) comprises a muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6), a third muffler chamber (12) with a different volumetric resonance frequency located between the two other muffler chambers (12) and an attenuation conduit (13) communicating with the third and second muffler chambers (12) (Fig. 3).
  • In another application of the present invention, the suction muffler (4) comprises a muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6) and, an attenuation conduit (13) communicating with the first and second muffler chambers (12) (Fig. 4).
  • In one application of the present invention, the suction muffler (4) comprises a first muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6), a third muffler chamber (12) with a different volumetric resonance frequency than that of the two other muffler chambers (12) and which is located between the first and the second muffler chambers (12) and, three attenuation conduits (13) which communicate with the third and second muffler chambers (12) and having different cross-sectional areas thereby minimizing the noise at different frequencies (Fig. 5).
  • In-another application of the present invention; the suction-muffler (4) comprises-one or more guiding members (11) extending from the suction opening (9) to the first muffler chamber (12) whereby the refrigerant sucked is routed to the flow pipe (10) and the refrigerant in the flow pipe (10) is routed to the muffler outlet opening (6) (Fig. 6).
  • In another application of the present invention, the suction muffler (4) comprises a first muffler chamber (12) communicating with the suction opening (9), a second muffler chamber (12) with a different volumetric resonance frequency communicating with the muffler outlet opening (6), a third and fourth muffler chambers (12) with different volumetric resonance frequencies and which are located between the first and the second muffler chambers (12), an attenuation conduit (13) communicating with the third and second muffler chambers (12), and another attenuation conduit (13) communicating with the second and fourth muffler chambers (12) and having different cross-sectional areas than that of the other one thereby minimizing the noise at different frequencies (Fig. 7).
  • By means of the application in accordance with the present invention, during the circulation of the refrigerant it is achieved to minimize the noise generated by increasing the performance of the compressor (1).

Claims (5)

  1. A compressor (1) comprising a suction muffler (4) whereby the refrigerant reaches to a cylinder block without being heated and the noise that might be generated by the refrigerant is prevented, and including a muffler head (8), whereby the muffler (4) is attached to a cylinder head (3), a muffler outlet opening (6) located above the muffler head (8) and providing the refrigerant to pass to a cylinder (2), at least two muffler chambers (12) having different volumetric resonance frequencies to achieve acoustic attenuation at different frequencies, wherein acoustical energy is reduced, and a suction opening (9) for permitting the refrigerant to enter there through, and characterized by a suction muffler (4) comprising a flow pipe (10) placed across the suction opening (9) and the muffler outlet opening (6) and the ends of which open to different muffler chambers (12), an attenuation conduit (13) between the muffler chambers (12) used to bypass the acoustical energy and to minimize the noise at desired frequencies wherein the inlet (16) and outlet (17) openings of said attenuation conduit (13) which communicate with said muffler chambers, have different cross-sectional areas.
  2. A compressor (1) as described in Claim 1, characterized by a suction muffler (4), which communicates the muffler chambers (12) by connecting them, comprising an attenuation conduit (13) with an attenuation conduit inlet opening (16) which, extending to one of the muffler chambers (12), which is closer to the suction outlet opening (6) and, attenuating the sound waves at undesired frequencies by the cross-sectional area (A5) thereof and; an attenuation conduit outlet opening (17) with a different cross-sectional area (A6) than that of the attenuation conduit inlet opening (16).
  3. A compressor (1) as described in any of the above Claims, characterized by a suction muffler (4) comprising an aperture (7) on the flow pipe (10).
  4. A compressor (1) as described in any of the above Claims, characterized by a suction muffler (4) comprising a flow pipe (10) with a flow pipe inlet opening (14) located across the suction opening (9) and a flow pipe outlet opening (15) located across the muffler outlet opening (6).
  5. A compressor (1) as described in any of the above Claims, characterized by a suction muffler (4) comprising one or more guiding members (11) extending from the suction opening (9) to the first muffler chamber (12) whereby the refrigerant sucked is routed to the flow pipe (10) and the refrigerant in the flow pipe (10) is routed to the muffler outlet opening (6).
EP04806630A 2003-12-29 2004-12-28 A compressor Active EP1714033B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200302306 2003-12-29
PCT/IB2004/052927 WO2005066494A1 (en) 2003-12-29 2004-12-28 A compressor

Publications (2)

Publication Number Publication Date
EP1714033A1 EP1714033A1 (en) 2006-10-25
EP1714033B1 true EP1714033B1 (en) 2008-01-23

Family

ID=34748323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04806630A Active EP1714033B1 (en) 2003-12-29 2004-12-28 A compressor

Country Status (7)

Country Link
EP (1) EP1714033B1 (en)
AT (1) ATE384873T1 (en)
DE (1) DE602004011576T2 (en)
DK (1) DK1714033T3 (en)
ES (1) ES2298859T3 (en)
TR (1) TR200603301T1 (en)
WO (1) WO2005066494A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008020004A1 (en) * 2006-08-14 2008-02-21 Arcelik Anonim Sirketi A compressor
AT518367B1 (en) * 2016-03-03 2018-02-15 Siemens Ag Oesterreich evacuation device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801721B1 (en) * 1968-10-08 1970-10-01 Danfoss As Silencer for encapsulated refrigerant compressors
US4111278A (en) * 1977-02-09 1978-09-05 Copeland Corporation Discharge muffler
US4330239A (en) * 1979-10-10 1982-05-18 Tecumseh Products Company Compressor muffler
IT1147228B (en) * 1981-02-24 1986-11-19 Necchi Spa SILENCER FOR MOTOR-COMPRESSOR FOR REFRIGERATING SYSTEMS

Also Published As

Publication number Publication date
EP1714033A1 (en) 2006-10-25
ES2298859T3 (en) 2008-05-16
DK1714033T3 (en) 2008-06-02
DE602004011576T2 (en) 2009-01-22
WO2005066494A1 (en) 2005-07-21
DE602004011576D1 (en) 2008-03-13
ATE384873T1 (en) 2008-02-15
TR200603301T1 (en) 2006-09-21

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