EP1740832A1 - Compressor with suction muffler - Google Patents

Compressor with suction muffler

Info

Publication number
EP1740832A1
EP1740832A1 EP05718563A EP05718563A EP1740832A1 EP 1740832 A1 EP1740832 A1 EP 1740832A1 EP 05718563 A EP05718563 A EP 05718563A EP 05718563 A EP05718563 A EP 05718563A EP 1740832 A1 EP1740832 A1 EP 1740832A1
Authority
EP
European Patent Office
Prior art keywords
muffler
head
extension
muffler head
compressor
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
Application number
EP05718563A
Other languages
German (de)
French (fr)
Other versions
EP1740832B1 (en
Inventor
Erhan Arcelik Anonim Sirketi KASAPOGLU
Serkan Arcelik Anonim Sirketi KARA
Atilla Arcelik Anonim Sirketi KAYA
Emre Arcelik Anonim Sirketi OGUZ
Husnu Arcelik Anonim Sirketi KERPICCI
Martien Janssen
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 EP1740832A1 publication Critical patent/EP1740832A1/en
Application granted granted Critical
Publication of EP1740832B1 publication Critical patent/EP1740832B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • 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
    • F04B39/0027—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
    • F04B39/0072—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting

Definitions

  • This invention relates to a compressor, preferably used in refrigerators, which comprises a muffler that minimizes the noise generated by the refrigerant during the refrigeration cycle and, a cylinder head that is used to attach the muffler to the cylinder.
  • suction mufflers are utilized to ensure that the refrigerant used to achieve the cooling reaches the cylinder block without being heated and, that the noise that might be generated by the said 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. While attempting to minimize the noise generated, it is necessary to improve thermodynamic efficiency. However, heat transfer occurs at the section where the cylinder head and the muffler head are connected, such that the refrigerant and correspondingly the thermodynamic cycle are affected.
  • the cylinder head is manufactured in single piece and a portion of it is in full contact with the surfaces of the muffler that form the suction manifold.
  • the temperature of the refrigerant sucked into the cylinder rises because of the temperature difference formed at the cylinder head as a result of the discharge of the refrigerant to the exhaust manifold of cylinder head after leaving the cylinder, wherein both the pressure and temperature of the said refrigerant are increased by the compression process in the cylinder.
  • the rise in the temperature of the refrigerant causes its volume to increase thereby resulting in compression of less amount of refrigerant in a standard stroke volume and, decrease of volumetric efficiency of the compressor.
  • Fig.l - is a sectional view of a compressor.
  • Fig.2 - is a perspective view of a cylinder head and a suction muffler.
  • Fig.3 - is a top view of a cylinder head and a suction muffler.
  • Fig.4 - is an exploded view of a cylinder head, a valve plate and a suction muffler.
  • Fig.5 - is a perspective view of a cylinder head and a muffler head.
  • Fig.6 - is a bottom perspective view of a cylinder head and a muffler head.
  • Fig.7 - is a top view of a cylinder head and a muffler head.
  • Fig.8 - is a top perspective view of a cylinder head and a muffler head.
  • FIG.9 - is a bottom perspective view of a cylinder head and a muffler head, in another embodiment of the present invention.
  • Fig.10 - is a top perspective view of a cylinder head and a muffler head, in another embodiment of the present invention.
  • Fig.l 1 - is a top view of a cylinder head and a muffler head, in another embodiment of the present invention.
  • the compressor (1) comprises a cylinder (2) which provides the pumping of the refrigerant in it, a cylinder head (3), located above the cylinder (2), whereby the refrigerant that is sucked and discharged is circulated, a valve plate (5) between the cylinder (2) and cylinder head (3), above which the cylinder head (3) is placed, a suction muffler (4) with insulating properties, placed onto the cylinder head (3), and preferably made of plastic material, wherein acoustical energy of the refrigerant circulated inside it, is reduced thereby minimizing the noise generated during the circulation and, which ensures that the refrigerant reaches the cylinder head (3) without being heated.
  • the suction muffler (4) comprises a muffler head (8) whereby it is attached to the cylinder head (3) and, an outlet opening (6) on the muffler head (8) permitting the refrigerant to pass to the cylinder (2) therethrough.
  • the cylinder head (3) comprises a muffler head housing (7) into which the muffler head (8) fits, an exhaust volume (9) wherein the refrigerant discharged from the cylinder (2) is circulated and, a bridge (12) whereby the upper edges of the muffler head housing (7) are connected together and, the muffler head (8) is fixed inside the muffler head housing (7).
  • the muffler head (8) and the muffler head housing (!) incorporate one or more extensions (10) used to connect to each other and, one or more recesses (11) where the extension (10) is fitted.
  • the muffler head (8) and the muffler head housing (7) are in contact with each other only at the mentioned extension (10) and recess (11) and between them, there is provided a gap (B) functioning as an insulator, whereby it is achieved that the heat transfer is reduced by minimizing the contact of the muffler head housing (7) with the hot portions of the cylinder head (3) and, that the refrigerant is prevented from being heated.
  • the recess (11) is positioned on the muffler head (8) whereas the extension (10) that is used to fix the muffler head (8) by fitting it into the said recesses (11) is positioned on the muffler head housing (7).
  • the extension (10) is positioned on the muffler head (8) whereas the recess (11) where the extension (10) is fitted into is positioned on the muffler head housing (7).
  • At least one extension (10) in the form of a pin is positioned on the bridge (12) whereas recesses (11) in a form and amount appropriate with the said extensions (10) are positioned on the muffler head (8) (Fig.6, Fig.7, Fig.8).
  • the extensions (10) in the form of a triangle prism, positioned at the both lateral surfaces of the muffler head housing (7), are fitted into the recesses (11) positioned at the lateral surfaces of the muffler head (8), which are suitable for the extensions (10) from the aspects of form, position and number.
  • the muffler head (8) and the muffler head housing (7) are located so that up and down motion is prevented as a result of the triangle prism forms of the extensions (10) and recesses (11), and are fastened to the valve plate (5) wherein their front and back motion is prevented by means of the bridge (12) placed on the said extensions (10) and, except for the extensions (10) and the recesses (11), a gap (B) reducing the heat transfer is left in between (Fig.9, Fig.10, Fig.l 1).
  • the muffler head housing (7) comprising an extension (10) with projections in different directions which are utilized to prevent motion in different directions, is placed on the muffler head (8) comprising an recess (11) suitable for the said extension (10) from the aspects of form and position and, is fastened to the valve plate (5) by means of screws wherein between the mentioned muffler head housing (7) and the muffler head (8), except for the extensions (10) and the recesses (11), a gap (B) reducing the heat transfer is left (Fig.5).
  • the contact surface of the muffler head housing (7) and the muffler head (8) is reduced, resulting in that the refrigerant is taken into the cylinder cooler and thus denser and thereby, it is achieved that the performance of the compressor (1) is increased.

Landscapes

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

Abstract

This invention relates to a compressor (1), preferably used in refrigerators, comprising a suction muffler (4) having a muffler head (8) that minimizes the noise generated by the refrigerant during the refrigeration cycle and, a cylinder head (3) that incorporates a muffler head housing (7) whereby the said muffler head (8) is attached to the cylinder (2), wherein heat transfer between the cylinder head (3) and the suction muffler (4) is reduced.

Description

Description COMPRESSOR WITH SUCTION MUFFLER
[001] This invention relates to a compressor, preferably used in refrigerators, which comprises a muffler that minimizes the noise generated by the refrigerant during the refrigeration cycle and, a cylinder head that is used to attach the muffler to the cylinder.
[002] In refrigerators, in compressors used in refrigeration cycle, suction mufflers are utilized to ensure that the refrigerant used to achieve the cooling reaches the cylinder block without being heated and, that the noise that might be generated by the said 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. While attempting to minimize the noise generated, it is necessary to improve thermodynamic efficiency. However, heat transfer occurs at the section where the cylinder head and the muffler head are connected, such that the refrigerant and correspondingly the thermodynamic cycle are affected.
[003] In these applications, the cylinder head is manufactured in single piece and a portion of it is in full contact with the surfaces of the muffler that form the suction manifold. The temperature of the refrigerant sucked into the cylinder rises because of the temperature difference formed at the cylinder head as a result of the discharge of the refrigerant to the exhaust manifold of cylinder head after leaving the cylinder, wherein both the pressure and temperature of the said refrigerant are increased by the compression process in the cylinder. The rise in the temperature of the refrigerant causes its volume to increase thereby resulting in compression of less amount of refrigerant in a standard stroke volume and, decrease of volumetric efficiency of the compressor.
[004] In the current state of the art, in the European Patent Application EP195486, a description is given of a cylinder head with a special form wherein the contact surfaces between the mentioned cylinder head and the muffler are reduced so as to decrease the heat transfer.
[005] In the current state of the art, in the United States Patent Documents US 5908287 and US 5697766, a description is given of an application wherein the suction muffler and the cylinder head are attached together by means of a scarf.
[006] In the current state of the art, in the United States Patent Document US 6358019, a description is given of an application wherein the suction muffler and the cylinder head are attached together by means of recesses and projections. [007] The aim of the present invention is the realization of a compressor wherein it is achieved that the refrigerant is transferred to the cylinder without its temperature being increased at the section where the muffler and the cylinder head are connected together and therefore, that the volumetric efficiency is increased.
[008] The compressor designed to fulfill the objectives of the present invention is illustrated in the attached figures where:
[009] Fig.l - is a sectional view of a compressor.
[010] Fig.2 - is a perspective view of a cylinder head and a suction muffler.
[011] Fig.3 - is a top view of a cylinder head and a suction muffler.
[012] Fig.4 - is an exploded view of a cylinder head, a valve plate and a suction muffler.
[013] Fig.5 - is a perspective view of a cylinder head and a muffler head.
[014] Fig.6 - is a bottom perspective view of a cylinder head and a muffler head.
[015] Fig.7 - is a top view of a cylinder head and a muffler head.
[016] Fig.8 - is a top perspective view of a cylinder head and a muffler head.
[017] Fig.9 - is a bottom perspective view of a cylinder head and a muffler head, in another embodiment of the present invention.
[018] Fig.10 - is a top perspective view of a cylinder head and a muffler head, in another embodiment of the present invention.
[019] Fig.l 1 - is a top view of a cylinder head and a muffler head, in another embodiment of the present invention.
[020] Elements shown on figures are numbered as follows: 1. Compressor 2. Cylinder 3. Cylinder head 4. Suction muffler 5. Valve plate 6. Outlet opening 7. Muffler head housing 8. Muffler head 9. Exhaust volume 10. Extension 11. Recess 12. Bridge
[021] In home appliances, preferably in cooling devices, the circulation of the refrigerant used to realize the cooling, is achieved by means of a hermetic piston compressor (1).
[022] The compressor (1) comprises a cylinder (2) which provides the pumping of the refrigerant in it, a cylinder head (3), located above the cylinder (2), whereby the refrigerant that is sucked and discharged is circulated, a valve plate (5) between the cylinder (2) and cylinder head (3), above which the cylinder head (3) is placed, a suction muffler (4) with insulating properties, placed onto the cylinder head (3), and preferably made of plastic material, wherein acoustical energy of the refrigerant circulated inside it, is reduced thereby minimizing the noise generated during the circulation and, which ensures that the refrigerant reaches the cylinder head (3) without being heated.
[023] The suction muffler (4) comprises a muffler head (8) whereby it is attached to the cylinder head (3) and, an outlet opening (6) on the muffler head (8) permitting the refrigerant to pass to the cylinder (2) therethrough.
[024] The cylinder head (3) comprises a muffler head housing (7) into which the muffler head (8) fits, an exhaust volume (9) wherein the refrigerant discharged from the cylinder (2) is circulated and, a bridge (12) whereby the upper edges of the muffler head housing (7) are connected together and, the muffler head (8) is fixed inside the muffler head housing (7).
[025] The muffler head (8) and the muffler head housing (!) incorporate one or more extensions (10) used to connect to each other and, one or more recesses (11) where the extension (10) is fitted. The muffler head (8) and the muffler head housing (7) are in contact with each other only at the mentioned extension (10) and recess (11) and between them, there is provided a gap (B) functioning as an insulator, whereby it is achieved that the heat transfer is reduced by minimizing the contact of the muffler head housing (7) with the hot portions of the cylinder head (3) and, that the refrigerant is prevented from being heated.
[026] In one embodiment of the present invention, the recess (11) is positioned on the muffler head (8) whereas the extension (10) that is used to fix the muffler head (8) by fitting it into the said recesses (11) is positioned on the muffler head housing (7).
[027] In another embodiment of the present invention, the extension (10) is positioned on the muffler head (8) whereas the recess (11) where the extension (10) is fitted into is positioned on the muffler head housing (7).
[028] In another embodiment of the present invention, at least one extension (10) in the form of a pin is positioned on the bridge (12) whereas recesses (11) in a form and amount appropriate with the said extensions (10) are positioned on the muffler head (8) (Fig.6, Fig.7, Fig.8).
[029] In another embodiment of the present invention, the extensions (10) in the form of a triangle prism, positioned at the both lateral surfaces of the muffler head housing (7), are fitted into the recesses (11) positioned at the lateral surfaces of the muffler head (8), which are suitable for the extensions (10) from the aspects of form, position and number. The muffler head (8) and the muffler head housing (7) are located so that up and down motion is prevented as a result of the triangle prism forms of the extensions (10) and recesses (11), and are fastened to the valve plate (5) wherein their front and back motion is prevented by means of the bridge (12) placed on the said extensions (10) and, except for the extensions (10) and the recesses (11), a gap (B) reducing the heat transfer is left in between (Fig.9, Fig.10, Fig.l 1).
[030] In another embodiment of the present invention, the muffler head housing (7) comprising an extension (10) with projections in different directions which are utilized to prevent motion in different directions, is placed on the muffler head (8) comprising an recess (11) suitable for the said extension (10) from the aspects of form and position and, is fastened to the valve plate (5) by means of screws wherein between the mentioned muffler head housing (7) and the muffler head (8), except for the extensions (10) and the recesses (11), a gap (B) reducing the heat transfer is left (Fig.5).
[031] By means of the application according to the present invention, the contact surface of the muffler head housing (7) and the muffler head (8) is reduced, resulting in that the refrigerant is taken into the cylinder cooler and thus denser and thereby, it is achieved that the performance of the compressor (1) is increased.

Claims

Claims
[001] A compressor (1) comprising; a cylinder (2) which provides the pumping of the refrigerant in it; a suction muffler (4) whereby acoustical energy of the refrigerant circulated inside it, is reduced thereby minimizing the noise generated during the circulation and, which ensures that the refrigerant reaches to the cylinder (2) without being heated; a muffler head (8) whereby the suction muffler (4) is attached to a cylinder head (3) and, a muffler head housing (7) where the muffler head (8) fits into; and characterized by the muffler head (8) and the muffler head housing (7) comprising one or more extensions (10) and one or more recesses (11) which are used to attach them together, in contact with each other only at the mentioned extensions (10) and recesses (11) and, wherein a rise in temperature of the refrigerant is prevented by reducing the heat transfer by means of a gap (B) provided between them, functioning as an insulator.
[002] A compressor (1) as described in Claim 1, characterized by the cylinder head (3) which comprises a bridge (12) whereby the edges of the muffler head housing (7) are connected together by the extension of the said bridge (12) from the upper edges of the muffler head housing (7) to the interior of the muffler head housing and, helps to fix inside the muffler head housing (7).
[003] A compressor (1) as described in Claims 1 and 2, characterized by the muffler head (8) that comprises a recess (11) and a muffler head housing (7) that comprises an extension (10) utilized to fix it by fitting into the said recess (11).
[004] A compressor (1) as described in Claims 1 and 2, characterized by the muffler head (8) that comprises an extension (10) and a muffler head housing (7) that comprises a recess (11) into which the said extension (10) fits.
[005] A compressor (1) as described in Claims 1 to 4, characterized by the muffler head (8) and a muffler head housing (7) that comprise a cylindrical extension (10) and a cylindrical recess (11) into which the said extension (10) fits.
[006] A compressor (1) as described in Claims 1 to 4, characterized by the muffler head (8) and a muffler head housing (7) that comprise an extension (10) in the form of a triangle prism and a recess (11) in the form of a triangle prism into which the said extension (10) fits.
[007] A compressor (1) as described in Claims 1 to 4, characterized by the muffler head (8) and a muffler head housing (7) that comprise an extension (10) in a form and position to prevent motion in different directions and a recess (11) in a form and position suitable for the mentioned extension (10) into which the said extension (10) fits.
EP05718563A 2004-03-26 2005-03-25 Compressor with suction muffler Active EP1740832B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200400607 2004-03-26
PCT/IB2005/051032 WO2005093255A1 (en) 2004-03-26 2005-03-25 Compressor with suction muffler

Publications (2)

Publication Number Publication Date
EP1740832A1 true EP1740832A1 (en) 2007-01-10
EP1740832B1 EP1740832B1 (en) 2007-06-06

Family

ID=34962045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05718563A Active EP1740832B1 (en) 2004-03-26 2005-03-25 Compressor with suction muffler

Country Status (6)

Country Link
EP (1) EP1740832B1 (en)
AT (1) ATE364135T1 (en)
DE (1) DE602005001324T2 (en)
ES (1) ES2286804T3 (en)
TR (1) TR200605252T1 (en)
WO (1) WO2005093255A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI1105384B1 (en) * 2011-12-20 2021-08-24 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda ALTERNATIVE COMPRESSOR CYLINDER COVER
RU2549005C2 (en) * 2013-02-06 2015-04-20 Закрытое акционерное общество "АТЛАНТ" Valve-and-piston unit of sealed refrigerant compressor
WO2016139267A1 (en) 2015-03-04 2016-09-09 Arcelik Anonim Sirketi A compressor comprising a suction muffler
TR201711734A2 (en) * 2017-08-09 2019-02-21 Arcelik As A COMPRESSOR WITH EFFECTIVE SEALING BETWEEN THE CYLINDER HEAD AND THE CYLINDER BORE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1210741A (en) * 1981-08-25 1986-09-02 Hideki Kawai Sealed type motor compressor
JPS58160570A (en) * 1982-03-18 1983-09-24 Matsushita Refrig Co Silencer for refrigerant compressor
IT1184167B (en) * 1985-03-21 1987-10-22 Eurodomestici Ind Riunite IMPROVEMENT IN SEALED MOTOR-COMPRESSORS FOR REFRIGERANT CIRCUITS
KR0136621Y1 (en) * 1995-10-31 1999-03-20 구자홍 Suction muffler locking device of a hermetic electric compressor
KR0186169B1 (en) * 1995-11-15 1999-05-01 구자홍 Muffler locker of a hermetic compressor
DE19923734C2 (en) * 1999-05-22 2001-03-29 Danfoss Compressors Gmbh Suction silencer for a hermetically sealed compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005093255A1 *

Also Published As

Publication number Publication date
DE602005001324T2 (en) 2008-02-07
EP1740832B1 (en) 2007-06-06
DE602005001324D1 (en) 2007-07-19
WO2005093255A1 (en) 2005-10-06
ATE364135T1 (en) 2007-06-15
TR200605252T1 (en) 2007-01-22
ES2286804T3 (en) 2007-12-01

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