EP3217012A1 - Akustischer entladungsfilter, herstellungsverfahren für einen akustischen entladungsfilter und hermetischer verdichter - Google Patents

Akustischer entladungsfilter, herstellungsverfahren für einen akustischen entladungsfilter und hermetischer verdichter Download PDF

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Publication number
EP3217012A1
EP3217012A1 EP17160173.5A EP17160173A EP3217012A1 EP 3217012 A1 EP3217012 A1 EP 3217012A1 EP 17160173 A EP17160173 A EP 17160173A EP 3217012 A1 EP3217012 A1 EP 3217012A1
Authority
EP
European Patent Office
Prior art keywords
discharge chamber
discharge
acoustic filter
manufacture
duct
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.)
Withdrawn
Application number
EP17160173.5A
Other languages
English (en)
French (fr)
Inventor
Borys Wicktor Dagostim HORBATIUK
Sérgio Koerich Lohn
Ricardo Mikio DOI
Pavan PURANIK
R N Ashwin KUMAR
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.)
Whirlpool SA
Original Assignee
Whirlpool SA
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 Whirlpool SA filed Critical Whirlpool SA
Publication of EP3217012A1 publication Critical patent/EP3217012A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • 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

Definitions

  • the present invention lies in the field of mechanical engineering. More specifically, the present invention describes a discharge acoustic filter made of polymeric material that has the interconnections of expansion chambers through internal ducts.
  • Discharge acoustic filters are already widely used coupled to compressors for reducing pulses generated by the compressors.
  • Discharge acoustic filters are generally made of steel, which can be stamped and machined, which have a wide variety of parts, and can be made integrated to the cast iron block.
  • discharge acoustic filters made of steel are large, heavy and present a large surface area that increases the heat exchange between the compressor and the hermetic volume.
  • Discharge acoustic filters made of steel have a greater complexity of assembly, because the tubes that make the connections between the expansion chambers, the cylinder cover and the remaining of the system are made of copper and are assembled by brazing and must be conformed in specific formats.
  • the discharge acoustic filter of the invention is made of polymeric material, which reduces the weight of the assembly.
  • it is also provided solutions to reduce the size (compact acoustic filter) and to offer attenuation of pulses with the desired use.
  • the US 8,246,320 document discloses an acoustic filter or suction muffler with two expansion chambers and a connecting tube that connects the second chamber to the muffler outlet.
  • the technical solution proposed is intended to reduce the loss of suction load, minimize the pulse and improve the cooling capacity of the system.
  • the present invention aims to solve the problems found in the state of the art from a compact discharge acoustic filter that integrates the cylinder cover and discharge chambers in a unique device/equipment.
  • the inventive concept common to all contexts of protection claimed is the integration of a compact acoustic filter with pipes that connect an expansion chamber to another, where the said pipes are internally arranged in the acoustic filter.
  • the acoustic filter of the present invention is, optionally, made entirely of polymeric material.
  • the present invention presents an acoustic filter with compact structure and internal pipe.
  • the surface area is smaller, reducing the heat exchange with the hermetic volume, a fact that reduces the temperature of the assembly.
  • the acoustic filter also increases the efficiency of the cooling system and also reduces the energy expenditure.
  • the present invention provides a discharge acoustic filter having lower weight, being entirely of polymeric material, both in chambers and in the internal pipes.
  • the structure of acoustic filter does not use or require metal pipes and provides facilitated mounting of assembly. Additionally, it discards the need for extra assembling processes (such as brazing, gluing, welding, interference tec) and tube forming.
  • the invention provides a discharge acoustic filter comprising:
  • the present invention presents a manufacturing process of a discharge acoustic filter comprising the steps of:
  • the invention provides a hermetic compressor comprising discharge acoustic filter which comprises:
  • the compressor of the present invention provides greater energy efficiency, lowest temperature in hermetic volume, less weight and greater simplicity of manufacture and/or assembly.
  • the reduced weight of the acoustic filter helps in reducing weight imbalances of the assembly, reducing vibrations on the compressor.
  • the present invention presents a discharge acoustic filter that is used for pulses attenuation generated by the compressor.
  • the acoustic filter of the invention is compact, integrates the cylinder cover and comprises internally disposed ducts/pipes of passage of fluids.
  • the acoustic filter of the invention is particularly useful for compressors, hermetic compressors and/or reciprocating hermetic compressors.
  • the acoustic filter is entirely made of polymeric material, being formed by a first element (1) associated with the second element (2), in addition to the third element (3), internally disposed in the acoustic filter.
  • the association of the first element (1) with the second element (2) forms the discharge chambers, wherein every connection between discharge chambers is internal.
  • the discharge acoustic filter of the present invention comprises three elements:
  • the first element (1) is formed by a cylinder cover (11) with a first discharge chamber (5).
  • discharge chamber means that are hollow volumes between the walls, which provide the gas expansion that passes by it.
  • a first duct (8) of passage of fluid connects the first discharge chamber (4) to the second discharge chamber (5).
  • the second discharge chamber (5) is also interconnected to third discharge chamber (6), so that both are separated by means of divisional elements, as well as dividers partitions, being both fluidly communicating.
  • the second element (2) is formed by a part of a second discharge chamber (5b), the part of a third discharge chamber (6b) and the part of a fourth discharge chamber (7b), so that it comprises a part of a second duct (9b) formed in an internal extension thereof, connecting the third discharge chamber (6) to the fourth discharge chamber (7).
  • the second element (2) comprises a part of a third duct (10b) connecting the second discharge chamber (5) to the third discharge chamber (6), wherein when the parts pertinent to the ducts, when associated, the part of the duct of the first element (1) and to the third element (3) form ducts internally disposed in the discharge acoustic filter proposed by the present invention.
  • the duct is an element of any material and format that allows integration and passage of fluid between the discharge chambers.
  • the third element (3) placed in part of the second duct (9b) in such a way as to form a second duct (9) itself, in which connects the second discharge chambers (5) to the third discharge chambers (6), so that both are fluidly communicating.
  • the outlet fluid of the compressor flows through the first discharge chamber (4), and through the first duct (8), the fluid is poured into the second chamber (5), which in turn interconnects to the third chamber (6) through the duct (3) and thus, the fluid is conveyed to the fourth chamber (7) by means of the third duct (10), formed by the association between a first part of a third duct (10a) with a second part of a third duct (10b).
  • the discharge acoustic filter of the present invention comprises the interconnection between the discharge chambers through internal ducts to the acoustic filter itself, not requiring external ducts occupying utile area inside the compressor.
  • connections between the discharge chambers of the discharge acoustic filter are internally disposed in order to make the acoustic filter more compact, reducing its external surface, consequently reducing the heat exchange with the hermetic volume.
  • the discharge acoustic filter comprises an additional discharge chamber, formed by the association of an intermediate region in the first element (1) with an intermediate portion in the second element (2). With that, the pulses attenuation is improved.
  • the acoustic filter proposed in the present invention allows to be implemented with different amounts of discharge chambers internally disposed and fluidly communicating.
  • the discharge acoustic filter was implemented, as described, with four discharge chambers.
  • the said acoustic filter was implemented with three discharge chambers.
  • the manufacturing process of the acoustic filter comprises the production of all the elements, separately, and according to its geometry. After the manufacture of all elements, the third element (3) is placed in the extension of the second element (2) and in sequence it occurs the assemble of the first (1) with the second element (2).
  • the manufacture of the first element (1) occurs through the steps that are performed simultaneously: the manufacture of a compressor cylinder cover (11), the manufacture of the first discharge chamber (4), the manufacture of a first part of a second discharge chamber (5a), making a first part of a third discharge chamber (6a) and the manufacture of a first part of a fourth discharge chamber (7a), in addition to the manufacture of a first duct (8) connecting the first discharge chamber (4) to the second discharge chamber (5).
  • the manufacture of the second element (2) occurs through the steps that are performed simultaneously: the manufacture of a second part of a second discharge chamber (5a), the manufacture of a second part of a third discharge chamber (6a) and the manufacture of a second part of a fourth discharge chamber (7a).
  • the first element (1) it is preferably used at least one of the forms, being: ultrasonic welding, by means of adhesive material, induction welding, welding via laser, overinjection, among other methods, not restrictive to the cited ones.
  • Another object of the present invention is a hermetic compressor comprising the discharge acoustic filter of the invention.
  • the acoustic filter is as described above, comprising: a compressor cylinder cover comprising at least a first discharge chamber; an intermediate region formed by the association of the first element (1) with the second element (2) and the third element (3). Furthermore, the intermediate region is comprised by the association of at least a second discharge chamber (5), at least a third discharge chamber (6) and at least a fourth discharge chamber (7), where the chambers are fluidly communicating.
  • the second element (2) comprises a portion of a second duct (9b), so as the third discharge chamber (6) is fluidly communicating with the fourth discharge chamber (7), through a duct (3) of fluid passage, positioned in said part of the second duct (9b), in the second element (2).
  • the proposed acoustic filter provides acoustic performance in similar level of conventional acoustic filter, as shown in figure (7 ) through transmission loss, reduction of the temperature in the suction chamber of 2.4 °C, reduction of the temperature on the cylinder wall of 11.2 °C and increased energy efficiency of at least 1.5%.
  • the inventive concept revealed herein and exemplified in one or more forms was treated as industrial secret and was not previously revealed until the time of the deposit of the present patent application.
  • Said industrial secret is an intangible asset of the Applicant.
  • the possible future publication of the patent application do not constitute authorization of use by third parties, serving only as: (i) notification to the third parties of the existence of said industrial secret at date of filing; (ii) clear indication of its Applicant; and (iii) encouraging the development of new improvements from the concept revealed herein, to prevent the reinvestment in the development of the already held by the Applicant.
  • any eventual commercial use requires authorization from the Applicant and that the unauthorized use imposes penalties provided in the Law.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP17160173.5A 2016-03-11 2017-03-09 Akustischer entladungsfilter, herstellungsverfahren für einen akustischen entladungsfilter und hermetischer verdichter Withdrawn EP3217012A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102016005387-0A BR102016005387A2 (pt) 2016-03-11 2016-03-11 Discharge acoustic filter, process of manufacture of acoustic discharge filter and hermetic compressor

Publications (1)

Publication Number Publication Date
EP3217012A1 true EP3217012A1 (de) 2017-09-13

Family

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Family Applications (1)

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EP17160173.5A Withdrawn EP3217012A1 (de) 2016-03-11 2017-03-09 Akustischer entladungsfilter, herstellungsverfahren für einen akustischen entladungsfilter und hermetischer verdichter

Country Status (5)

Country Link
US (1) US20170260974A1 (de)
EP (1) EP3217012A1 (de)
JP (1) JP2017160908A (de)
CN (1) CN107178483A (de)
BR (1) BR102016005387A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4170168A1 (de) * 2021-10-25 2023-04-26 Secop GmbH Druckschalldämpfer für einen kältemittelverdichter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102019027370A2 (pt) * 2019-12-19 2021-06-29 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. Tampa de cilindro de compressor alternativo

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202344A (en) * 1962-08-10 1965-08-24 Danfoss Ved Ing M Clausen Piston compressor, especially for refrigeration
US3600110A (en) * 1968-03-16 1971-08-17 Danfoss As Hermetically enclosed refrigerating machine
GB2224314A (en) * 1986-07-09 1990-05-02 Danfoss As A sound dampener for use in a refrigeration compressor
KR100681458B1 (ko) * 2005-12-12 2007-02-09 주식회사 대우일렉트로닉스 압축기의 토출 머플러
US8246320B2 (en) 2008-03-04 2012-08-21 Lg Electronics Inc. Muffler for compressor
WO2014053040A1 (en) * 2012-10-03 2014-04-10 Whirlpool S.A. Thermal insulation system for the discharge of gas in a refrigeration compressor
WO2014059504A1 (en) * 2012-10-18 2014-04-24 Whirlpool S.A . Expansion chamber for alternative compressor discharge line
EP2725228A1 (de) 2011-09-30 2014-04-30 Huangshi Dongbei Electrical Appliance Co., Ltd. Wärmegedämmte diskrete abgasschalldämpfervorrichtung und kühlkompressor damit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202344A (en) * 1962-08-10 1965-08-24 Danfoss Ved Ing M Clausen Piston compressor, especially for refrigeration
US3600110A (en) * 1968-03-16 1971-08-17 Danfoss As Hermetically enclosed refrigerating machine
GB2224314A (en) * 1986-07-09 1990-05-02 Danfoss As A sound dampener for use in a refrigeration compressor
KR100681458B1 (ko) * 2005-12-12 2007-02-09 주식회사 대우일렉트로닉스 압축기의 토출 머플러
US8246320B2 (en) 2008-03-04 2012-08-21 Lg Electronics Inc. Muffler for compressor
EP2725228A1 (de) 2011-09-30 2014-04-30 Huangshi Dongbei Electrical Appliance Co., Ltd. Wärmegedämmte diskrete abgasschalldämpfervorrichtung und kühlkompressor damit
WO2014053040A1 (en) * 2012-10-03 2014-04-10 Whirlpool S.A. Thermal insulation system for the discharge of gas in a refrigeration compressor
WO2014059504A1 (en) * 2012-10-18 2014-04-24 Whirlpool S.A . Expansion chamber for alternative compressor discharge line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4170168A1 (de) * 2021-10-25 2023-04-26 Secop GmbH Druckschalldämpfer für einen kältemittelverdichter

Also Published As

Publication number Publication date
US20170260974A1 (en) 2017-09-14
BR102016005387A2 (pt) 2017-09-19
JP2017160908A (ja) 2017-09-14
CN107178483A (zh) 2017-09-19

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