WO1998022712A1 - Improvement in the head and silencer of a refrigeration compressor - Google Patents

Improvement in the head and silencer of a refrigeration compressor Download PDF

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Publication number
WO1998022712A1
WO1998022712A1 PCT/EP1997/005734 EP9705734W WO9822712A1 WO 1998022712 A1 WO1998022712 A1 WO 1998022712A1 EP 9705734 W EP9705734 W EP 9705734W WO 9822712 A1 WO9822712 A1 WO 9822712A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
silencer
opening
recess
elongated portion
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.)
Ceased
Application number
PCT/EP1997/005734
Other languages
French (fr)
Inventor
Massimo Rigo
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.)
ACC Compressors SpA
Original Assignee
Zanussi Elettromeccanica SpA
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 Zanussi Elettromeccanica SpA filed Critical Zanussi Elettromeccanica SpA
Priority to DE69718512T priority Critical patent/DE69718512T2/en
Priority to SI9730448T priority patent/SI0950150T1/en
Priority to US09/297,600 priority patent/US6186751B1/en
Priority to EP97912197A priority patent/EP0950150B1/en
Priority to DK97912197T priority patent/DK0950150T3/en
Priority to AT97912197T priority patent/ATE231218T1/en
Priority to JP52311298A priority patent/JP2001503833A/en
Publication of WO1998022712A1 publication Critical patent/WO1998022712A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F04B39/0027—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S181/00—Acoustics
    • Y10S181/403—Refrigerator compresssor muffler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

Definitions

  • the present invention lefeis to a particular foim of both the head and the suction conduit of the silencei thiough which the refrigeiant gas flows mside a sealed casing that encloses an electric motoi , as particularly used m refrigerating appai atuses foi home and sirmlai applications
  • said silencei is assumed to operate m close association with the compressor and to be made of plastics moulded by the injection moulding oi any othei appropriate plastic moulding piocess, without this of course limiting the scope of the same invention to just such a kind of coupling and material
  • the gas pressure oscillations mside positive displacement compressors are critically important owmg to the extent to which they affect both the efficiency of and the level of sound power radiated by the compressors themselves In these compressors, it is the lefngeiant gas that comes from the suction tube that enters mside the sealed casing of the compiessoi
  • the body of the compressoi has a suction tube provided mside the casing which is connected to the suction valve thiough a numbei of channels and cavities that enable the suction gas to be conveyed into the cyl ndei
  • the pi actice is commonly known of mounting a silencer element at the inlet at which the gas enters the head of the compiessoi , said silencei practically constituting in this mannei the teimmal portion of the gas suction conduit
  • the head must be given an appropriately deep recess to accomodate at least a part of the silencei , le the one that is applied on to the inflow mouth of the valve plate Owing to constructive leasons, such a connection is earned out aftei the valve plate has been assembled on the compressor body, but before assembling the head
  • FIG. 1 is a plan top view of the compressor body without valve plate
  • - Figuie 2 is a top view of the valve plate of a compressor accoidmg to the present invention
  • FIG. 3 is a top view of a head of a compressoi according to the present invention.
  • FIG. 4 is a top view of a silencei of a compressor according to the present invention.
  • FIG. 5 is a top view of the assembly of the four component parts illustrated in the above listed Figures, shown here in their final assembly condition,
  • - Figuie 6 is a ci oss-sectional view of an improved variant of a compressor according to the present invention
  • - Figuie 7 is a perspective view oof a head of a compiessoi according to the present invention
  • FIGS. 8 to 10 are respective views along the section plane A - A of the positions taken by a component pail of the present invention at subsequent moments dm mg the assembly thei eof on the compi essor head
  • the gas entering the compressoi and coming fiom the refrigerating circuit, is immediately "intercepted" by the silencer and conveyed towaids the head without it being allowed to diffuse
  • both the silencer and the compressor body are so shaped and sized as to make it possible for the same silencei to be assembled after the compressor body itself has been fully assembled
  • the compressor body comprises a cylinder body 1 , a valve plate 2, a head 3 of the compiessoi , and a silencei 4
  • both the cylmdei body 1 and the cylrndei plate 2 may be left substantially unaltered, whereas the present invention mtioduces definite modifications relating to the head 3 of the compressor and the silencer 4
  • said compressor head 3 is provided with a projecting border 5 along its outer surface, said projecting border bemg formed with a side 6 that is substantially orthogonal to the surface of the plate and said side 6 extending with a second side 7 that is substantially transversal with lespect to said side 6 and substantially fiontal, at a certain distance therefrom, with respect to the suction opening 20 provided m the plate 2 Furthermore, said head is so shaped as to leave uncoveied a portion 8 of the plate situated theiebelow , which is substantially opposing said second side 7 and, theiefoie, substantially encn cling said suction opening 20
  • Said contiguous sides 6 and 7 are geometrically associated with each other so as to subtend a lecess 9 that is defined by at least said side 7 and the opposing surface of said portion 8 of the plate situated therebelow
  • the silencei 10 is in turn provided with an elongated portion 11 , on a side of which theie is piovided an opening 12 through which the gas is ejected towards the suction opening 20 provided m the valve plate
  • the dimensions of the described component parts are selected in such a manner that a hollow space 23 is obtained between the outer surface 1 of said elongated portion, which is situated m front of the respective opening 20, and the inner surface 22 of said border 7, said hollow space is used to accomodate an elastic element 24 which, by acting elastically against said two mutually opposing surfaces 21 and 22, firmly holds the silencer m the desired position by blocking said elongated portion 11
  • An advantageous variant of the above described embodiment of the present invention consists m piovidmg said head and the silencer with such a recess 31 and such a protmsion 30, lespectively, that they are able to mutually engage, thereby consolidating the final assembly of said component parts and ensmmg an exact, conect positioning theieof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Defrosting Systems (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Electric compressor comprising a compression cylinder and the respective head, a valve plate arranged between the head and the body of said cylinder and provided with a gas inlet opening, a silencer arranged at the inlet side of said opening and comprising an elongated portion with an aperture adapted to fit in with said opening. The head is provided externally with a concave recess which is laterally open towards the inner cavity of the compressor, said elongated portion of the silencer being firmly housed in said recess so that the aperture engages the opening in the valve plate in an air-tight, sealed manner. In said recess there is provided a hollow space between said elongated portion and the outer wall, said hollow space being adapted to accommodate an elastic element for locking the silencer in place.

Description

IMPROVEMENT IN THE HEAD AND SILENCER OF A REFRIGERATION
COMPRESSOR
DESCRIPTION
The present invention lefeis to a particular foim of both the head and the suction conduit of the silencei thiough which the refrigeiant gas flows mside a sealed casing that encloses an electric motoi , as particularly used m refrigerating appai atuses foi home and sirmlai applications
To the purpose of moie effectively exemplifying the piesent invention, said silencei is assumed to operate m close association with the compressor and to be made of plastics moulded by the injection moulding oi any othei appropriate plastic moulding piocess, without this of course limiting the scope of the same invention to just such a kind of coupling and material
The gas pressure oscillations mside positive displacement compressors, in particular those used in domestic refrigeration equipment, are critically important owmg to the extent to which they affect both the efficiency of and the level of sound power radiated by the compressors themselves In these compressors, it is the lefngeiant gas that comes from the suction tube that enters mside the sealed casing of the compiessoi The body of the compressoi has a suction tube provided mside the casing which is connected to the suction valve thiough a numbei of channels and cavities that enable the suction gas to be conveyed into the cyl ndei
The basic mechanisms governing the gas motion dynamics and, more genei lly, the state of the art aie descnbed m the Italian patent application no PN00014 filed by the same Applicant, to which reference should therefore be made foi obvious leasons of conciseness and of which the present invention shall be intended as constituting an improvement
To the pmpose of 1 educing the noise emissions fiom the suction conduit, the pi actice is commonly known of mounting a silencer element at the inlet at which the gas enters the head of the compiessoi , said silencei practically constituting in this mannei the teimmal portion of the gas suction conduit
In view of using the sound-deadening effect theieof to the greatest possible extent, such a silencei is usually applied directly on to the inflow mouth of the valve plate, with such a constmction as to be able to get ovei the thickness of the head
It theiefoie is quite obvious that the head must be given an appropriately deep recess to accomodate at least a part of the silencei , le the one that is applied on to the inflow mouth of the valve plate Owing to constructive leasons, such a connection is earned out aftei the valve plate has been assembled on the compressor body, but before assembling the head
Such a method, however, calls foi a numbei of manual assembly operations to be peifoimed, so that the automatic piocess used to assemble the whole compressor must necessarily be interrupted and, as a result, a much longer time is requned foi manufacturing the compressoi owing to both said interruption of an automated piocess and the time requned foi assembling the silencei manually This piacticaUy turns out to constitute a di wback that considerably affect the overall production efficiency It therefore would be desirable, and it actually is a mam purpose of the piesent invention, to piovide a compiessoi head and silencing appaiatus with such a form and size as to enable the whole assembly of the compressor to be carried out without assembling the silencer, and the silencer to be then assembled only upon completion of the actual manufacturing process, le after also the compressor head has been assembled
It is a furthei purpose of the piesent invention to provide such a head and such silencei so that they enable techniques and materials to be used which are simple, cost-effective and leadily available in the art
These aims are leached m a compressor as it is described below by way of meie non-hmihng example with leference to the accompanying diawings, m which
- Figure 1 is a plan top view of the compressor body without valve plate,
- Figuie 2 is a top view of the valve plate of a compressor accoidmg to the present invention,
- Figure 3 is a top view of a head of a compressoi according to the present invention,
- Figure 4 is a top view of a silencei of a compressor according to the present invention,
- Figure 5 is a top view of the assembly of the four component parts illustrated in the above listed Figures, shown here in their final assembly condition,
- Figuie 6 is a ci oss-sectional view of an improved variant of a compressor according to the present invention, - Figuie 7 is a perspective view oof a head of a compiessoi according to the present invention
- Figures 8 to 10 are respective views along the section plane A - A of the positions taken by a component pail of the present invention at subsequent moments dm mg the assembly thei eof on the compi essor head
The basic idea behind the present invention is as described below
As m the afoie cited patent specification, the gas entering the compressoi , and coming fiom the refrigerating circuit, is immediately "intercepted" by the silencer and conveyed towaids the head without it being allowed to diffuse
Accoidmg to the present invention, howevei , both the silencer and the compressor body are so shaped and sized as to make it possible for the same silencei to be assembled after the compressor body itself has been fully assembled
In this connection, and with lefeience to the above listed Figures, it can be noticed that the compressor body comprises a cylinder body 1 , a valve plate 2, a head 3 of the compiessoi , and a silencei 4 As compared with pπoi-art solutions, both the cylmdei body 1 and the cylrndei plate 2 may be left substantially unaltered, whereas the present invention mtioduces definite modifications relating to the head 3 of the compressor and the silencer 4
With reference to the compressor head 3, it can be noticed that it is provided with a projecting border 5 along its outer surface, said projecting border bemg formed with a side 6 that is substantially orthogonal to the surface of the plate and said side 6 extending with a second side 7 that is substantially transversal with lespect to said side 6 and substantially fiontal, at a certain distance therefrom, with respect to the suction opening 20 provided m the plate 2 Furthermore, said head is so shaped as to leave uncoveied a portion 8 of the plate situated theiebelow , which is substantially opposing said second side 7 and, theiefoie, substantially encn cling said suction opening 20
Said contiguous sides 6 and 7 are geometrically associated with each other so as to subtend a lecess 9 that is defined by at least said side 7 and the opposing surface of said portion 8 of the plate situated therebelow
It is therefoie quite apparent that the suction opening 20 is m this way able to let into the avove cited and defined recess 9
The silencei 10 is in turn provided with an elongated portion 11 , on a side of which theie is piovided an opening 12 through which the gas is ejected towards the suction opening 20 provided m the valve plate
The mutual shapes and dimensions of the described component parts will be such, and easily identifiable by those skilled in the art in their many variants as far as both the geometry and the dimensions are concerned, as to enable said elongated portion 11 of the silencer to be piogressively inserted into said recess, aftei the head has been assembled, until the opening 12 provided to allow the gas contained in the silencer to escape establishes a perfect and tight fit with the corresponding opening 20 provided in the valve plate
For the silencer to be kept in position, the dimensions of the described component parts are selected in such a manner that a hollow space 23 is obtained between the outer surface 1 of said elongated portion, which is situated m front of the respective opening 20, and the inner surface 22 of said border 7, said hollow space is used to accomodate an elastic element 24 which, by acting elastically against said two mutually opposing surfaces 21 and 22, firmly holds the silencer m the desired position by blocking said elongated portion 11
In an advantageous mannei , in ordei to make it possible for said elastic element to be more easily and readily inserted, preferably without any use of particulai tools 01 opeiations, the same element is obtained in the form of an appiopi lately bent high-elasticity metal leaf, as lllustiated m Figuie 6 In a prefened mannei , in ordei to ensuie that it takes a coirect position, said elastic leaf is provided on its outei edge 24 with an appropriate fold 25 Such a fold serves also the purpose of definitively fastening the leaf mside the hollow space To this furthei puipose, said fold shall be such as to easily adapt to the projecting edge 26 of said side 7 of the projecting border 5
An advantageous variant of the above described embodiment of the present invention consists m piovidmg said head and the silencer with such a recess 31 and such a protmsion 30, lespectively, that they are able to mutually engage, thereby consolidating the final assembly of said component parts and ensmmg an exact, conect positioning theieof
It will be appieciated that the above description and illustrations have been given, with refeience to the accompanying drawings, to the meie purpose of exemplifying the piesent invention, and that a numbei of variants can be implemented and modifications can be made thereto without departing from the scope of the piesent invention

Claims

1 Electi lc compressoi , m particular foi household refrigerating apparatuses, comprising a cylrndei body (1), a lespective head (3), a valve plate (2) arranged between said head and the body of said cylinder and provided with a gas suction opening (20), a silencer (4) arianged between the inner recess of the compressor casing and said head of the cylrndei , said silencer being formed by a central gas-suction body and an elongated portion (11) extending from said body and provided with a respective opening (12) foi the ejection of the gas contained m the silencei , said opening (12) being adapted to fittingly engage said suction opening (20) m said valve plate, characterized m that
- said head is piovided externally with a hollow seat or recess (9) that is laterally accessible towards the innei volume of said compressor,
- said elongated portion (11) of the silencer is adapted to be accomodated in a firm and stable manner m said recess (9) m such a position as to enable said respective opening (12) to fittingly and tightly engagesaid opening (20) of said valve plate so as to communicatmgly connect the interior of said silencer with the mtenoi of said cylinder body, and
- said head is shaped in a manner that it leaves uncovered a portion (8) of the plate situated therebelow encu cling said suction opening
2 Electric compressoi according to claim 1 , characterized in that said recess (9) is delimited, on its side opposing said plate, by a wall (7) whose inner surface (22) oriented towards said plate is parallel to the latter 3 Electi lc compressoi according to claim 1 or 2 characterized m that between said innei suiface (22) and the outei surface (21) of said elongated portion, m a position which is opposite to the lespective opemng (20), there is piovided a hollow space (23) that is accessible fiom the interior of said compiessoi casing
4 Electi lc compiessoi accoidmg to claim 3, characterized m that in said hollow space there is arranged an elastic element (24) which is adapted to act between said two surfaces (21 , 22)
5 Electi lc compiessoi accoidmg to claim 4, characterized in that said said elastic element (24) is foimed by means of a substantially plane metal leaf that is bent mwaidly so that the two so obtained flanks theieof are capable of acting against said surfaces (21 , 22), respectively
6 Electric compressor according to claim 4 or 5, characterized in that said elastic element is piovided with means (26) that aie capable of engaging the outer edge of the wall (25) of said lecess m a stable mannei
7 Electric compiessor accoidmg to any of the preceding claims, characterized m that a protrusion (30) is provided mside said elongated portion (11), an outwaidly open recess (31) is piovided m said valve plate (2), and said protiusion and said lecess are capable of mutually engaging in the position of final assembly of said silencer
PCT/EP1997/005734 1996-11-19 1997-10-17 Improvement in the head and silencer of a refrigeration compressor Ceased WO1998022712A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE69718512T DE69718512T2 (en) 1996-11-19 1997-10-17 IMPROVEMENT OF THE HEAD AND MUFFLER OF A REFRIGERATOR COMPRESSOR
SI9730448T SI0950150T1 (en) 1996-11-19 1997-10-17 Improvement in the head and silencer of a refrigeration compressor
US09/297,600 US6186751B1 (en) 1996-11-19 1997-10-17 Head and silencer of a refrigeration compressor
EP97912197A EP0950150B1 (en) 1996-11-19 1997-10-17 Improvement in the head and silencer of a refrigeration compressor
DK97912197T DK0950150T3 (en) 1996-11-19 1997-10-17 Improvement of the cylinder head and muffler in a cooling compressor
AT97912197T ATE231218T1 (en) 1996-11-19 1997-10-17 IMPROVEMENT TO THE HEAD AND SILENCER OF A REFRIGERATOR COMPRESSOR
JP52311298A JP2001503833A (en) 1996-11-19 1997-10-17 Improvements in refrigeration compressor heads and silencers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1996PN000046U IT241575Y1 (en) 1996-11-19 1996-11-19 REFRIGERATED COMPRESSOR WITH HEAD AND SILENCER PERFECTED
ITPN96U000046 1996-11-19

Publications (1)

Publication Number Publication Date
WO1998022712A1 true WO1998022712A1 (en) 1998-05-28

Family

ID=11395175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/005734 Ceased WO1998022712A1 (en) 1996-11-19 1997-10-17 Improvement in the head and silencer of a refrigeration compressor

Country Status (10)

Country Link
US (1) US6186751B1 (en)
EP (1) EP0950150B1 (en)
JP (1) JP2001503833A (en)
CN (1) CN1089138C (en)
AT (1) ATE231218T1 (en)
DE (1) DE69718512T2 (en)
DK (1) DK0950150T3 (en)
ES (1) ES2189953T3 (en)
IT (1) IT241575Y1 (en)
WO (1) WO1998022712A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915918A1 (en) * 1999-04-09 2000-10-19 Danfoss Compressors Gmbh Refrigerant compressor, especially for domestic refrigerating appliances, has alignment devices with guide elements for assembly of component part pairs and for gaskets in between them
EP1347174A4 (en) * 2000-12-25 2004-08-11 Matsushita Refrigeration Closed compressor
WO2007051272A1 (en) * 2005-11-04 2007-05-10 Whirlpool S.A. Acoustic muffler for a hermetic compressor
US8323001B2 (en) 2009-04-10 2012-12-04 Panasonic Corporation Hermetic compressor
WO2017061967A1 (en) 2015-10-08 2017-04-13 Arcelik Anonim Sirketi A compressor with a suction muffler
WO2017134220A1 (en) 2016-02-05 2017-08-10 Arcelik Anonim Sirketi A compressor with suction muffler
WO2017153272A1 (en) 2016-03-07 2017-09-14 Arcelik Anonim Sirketi A compressor with suction muffler

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4872175B2 (en) * 2001-08-28 2012-02-08 パナソニック株式会社 Hermetic electric compressor
JP4101505B2 (en) * 2001-12-05 2008-06-18 松下冷機株式会社 Hermetic compressor
US6779350B2 (en) * 2002-03-21 2004-08-24 Ritchie Enginerring Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor
US20070113575A1 (en) * 2003-12-05 2007-05-24 Ritchie Engineering Company, Inc. Valve manifold assembly
US20050126200A1 (en) * 2003-12-05 2005-06-16 Ajit Ramachandran Single valve manifold
US20060228242A1 (en) * 2005-04-11 2006-10-12 Ritchie Engineering Company, Inc. Vacuum pump
US20060228246A1 (en) * 2005-04-11 2006-10-12 Ritchie Engineering Company, Inc. Vacuum pump
CN101487461B (en) * 2009-02-05 2010-08-11 常熟市天银机电有限公司 Fit structure for case cover and case body of refrigeration compressor air suction silencer
JP6286364B2 (en) * 2012-12-13 2018-02-28 パナソニック アプライアンシズ リフリジレーション デヴァイシズ シンガポール Hermetic compressor and refrigeration system
JP6065239B2 (en) * 2013-02-07 2017-01-25 パナソニックＩｐマネジメント株式会社 Hermetic compressor and refrigeration system
CN103644093A (en) * 2013-12-10 2014-03-19 珠海凌达压缩机有限公司 Air suction assembly of compressor
WO2016139267A1 (en) * 2015-03-04 2016-09-09 Arcelik Anonim Sirketi A compressor comprising a suction muffler
CN109026610B (en) * 2018-10-22 2024-02-27 珠海格力节能环保制冷技术研究中心有限公司 Compressor and suction muffler and cylinder head assembly thereof
JP7560533B2 (en) * 2019-07-12 2024-10-02 ニデック グローバル アプライアンス ブラジル リミターダ Reciprocating Compressor
US12006937B2 (en) 2022-06-07 2024-06-11 Agilent Technologies, Inc. Fluid pump with integrated cowling and discharge muffler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195486A2 (en) * 1985-03-21 1986-09-24 Whirlpool International B.V. Hermetic motor-compressor unit for a refrigeration circuit
US5207564A (en) * 1992-04-21 1993-05-04 White Consolidated Industries, Inc. Compressor head and suction muffler for hermetic compressor
US5304044A (en) * 1990-03-06 1994-04-19 Matsushita Refrigeration Company Hermetic compressor
GB2288857A (en) * 1994-04-29 1995-11-01 Samsung Electronics Co Ltd Compressor
GB2294735A (en) * 1994-11-03 1996-05-08 Necchi Compressori Muffler securement in a motor compressor unit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876339A (en) * 1973-08-06 1975-04-08 Sundstrand Corp Reciprocating piston gas compressor
IT1204203B (en) * 1986-05-22 1989-03-01 Necchi Spa ALTERNATIVE HERMETIC MOTOR-COMPRESSOR
BR9102288A (en) * 1991-05-28 1993-01-05 Brasileira S A Embraco Empresa SUCTION DIFFERENT SET FOR HERMETIC COMPRESSOR
US5173034A (en) * 1991-07-18 1992-12-22 White Consolidated Industries, Inc. Discharge muffler for refrigeration compressor
US5496156A (en) * 1994-09-22 1996-03-05 Tecumseh Products Company Suction muffler
KR0156720B1 (en) * 1995-07-27 1999-03-20 김광호 Reciprocating compressor
KR100187223B1 (en) * 1995-07-29 1999-05-01 김광호 Muffler of a compressor
KR0136621Y1 (en) * 1995-10-31 1999-03-20 구자홍 Suction muffler locking device of a hermetic electric compressor
US5804777A (en) * 1995-11-02 1998-09-08 Lg Electronics Inc. Suction noise muffler for hermetic compressor
SG93793A1 (en) * 1996-05-02 2003-01-21 Matsushita Refrigeration Ind S Cylinder head-suction muffler assembly for hermetic compressor
KR100222924B1 (en) * 1996-07-12 2000-01-15 배길성 Hermetic reciprocating compressor
KR100210091B1 (en) * 1997-03-14 1999-07-15 윤종용 Apparatus for reducing noise of compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195486A2 (en) * 1985-03-21 1986-09-24 Whirlpool International B.V. Hermetic motor-compressor unit for a refrigeration circuit
US5304044A (en) * 1990-03-06 1994-04-19 Matsushita Refrigeration Company Hermetic compressor
US5207564A (en) * 1992-04-21 1993-05-04 White Consolidated Industries, Inc. Compressor head and suction muffler for hermetic compressor
GB2288857A (en) * 1994-04-29 1995-11-01 Samsung Electronics Co Ltd Compressor
GB2294735A (en) * 1994-11-03 1996-05-08 Necchi Compressori Muffler securement in a motor compressor unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915918A1 (en) * 1999-04-09 2000-10-19 Danfoss Compressors Gmbh Refrigerant compressor, especially for domestic refrigerating appliances, has alignment devices with guide elements for assembly of component part pairs and for gaskets in between them
DE19915918C2 (en) * 1999-04-09 2001-05-31 Danfoss Compressors Gmbh Refrigerant compressor and method for its assembly
EP1347174A4 (en) * 2000-12-25 2004-08-11 Matsushita Refrigeration Closed compressor
US6957951B2 (en) 2000-12-25 2005-10-25 Matsushita Refrigeration Company Closed compressor
WO2007051272A1 (en) * 2005-11-04 2007-05-10 Whirlpool S.A. Acoustic muffler for a hermetic compressor
US8323001B2 (en) 2009-04-10 2012-12-04 Panasonic Corporation Hermetic compressor
WO2017061967A1 (en) 2015-10-08 2017-04-13 Arcelik Anonim Sirketi A compressor with a suction muffler
WO2017134220A1 (en) 2016-02-05 2017-08-10 Arcelik Anonim Sirketi A compressor with suction muffler
WO2017153272A1 (en) 2016-03-07 2017-09-14 Arcelik Anonim Sirketi A compressor with suction muffler

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DE69718512D1 (en) 2003-02-20
CN1237228A (en) 1999-12-01
JP2001503833A (en) 2001-03-21
EP0950150B1 (en) 2003-01-15
DE69718512T2 (en) 2003-11-13
ES2189953T3 (en) 2003-07-16
EP0950150A1 (en) 1999-10-20
ATE231218T1 (en) 2003-02-15
CN1089138C (en) 2002-08-14
IT241575Y1 (en) 2001-05-09
DK0950150T3 (en) 2003-04-22
US6186751B1 (en) 2001-02-13
ITPN960046U1 (en) 1998-05-19

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