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WO2015188972A1 - A compressor comprising a muffler - Google Patents

A compressor comprising a muffler Download PDF

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Publication number
WO2015188972A1
WO2015188972A1 PCT/EP2015/059046 EP2015059046W WO2015188972A1 WO 2015188972 A1 WO2015188972 A1 WO 2015188972A1 EP 2015059046 W EP2015059046 W EP 2015059046W WO 2015188972 A1 WO2015188972 A1 WO 2015188972A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
muffler
infrared ray
high infrared
reflective feature
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/EP2015/059046
Other languages
French (fr)
Inventor
Mehmet Ali Oral
Osman Gokhan Ersoy
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
Priority to EP15720046.0A priority Critical patent/EP3155262A1/en
Publication of WO2015188972A1 publication Critical patent/WO2015188972A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/008—Spacing or clearance between cylinder and piston

Definitions

  • the present invention relates to a compressor that comprises a muffler.
  • the movement of the refrigerant fluid is a significant source of noise.
  • the sound energy originating from the movement of the refrigerant fluid is transmitted to the compressor casing and is dispersed to the outside environment as compressor noise.
  • the use of a muffler produced from plastic material that enables the sound power level to be decreased is known.
  • the material of the muffler disposed inside the compressor must have high chemical resistance against the oil and fluid included in the compressor.
  • the heat formed at the motor and piston heats the compressor muffler and hence the gas inside by radiation and this situation decreases compressor efficiency. Therefore, the muffler has to be produced from a material that both has high chemical resistance and that decreases heat transfer by radiation by reflecting the infrared rays.
  • a muffler suitable to be used in the compressor comprises polybutylene terephthalate (PTB) and glass fiber.
  • PTB polybutylene terephthalate
  • the aim of the present invention is the realization of a compressor, whereof the energy efficiency is increased.
  • the compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a muffler that prevents noise.
  • the muffler is produced from the mixture of polybutylene terephthalate (PTB), glass fiber and a material that almost entirely reflects the infrared rays that fall on its surface.
  • the mechanical resistance of PBT is increased with glass fiber. Since heating of the muffler by radiation is not realized by means of the reflective material, the temperature of the fluid passing through the muffler does not increase and thus the compressor efficiency is prevented from decreasing.
  • the muffler comprises a material in a percentage between 0.1 and 15 by weight, having the feature of highly reflecting the infrared rays.
  • the material having the high infrared ray reflecting feature is a metal oxide like Al 2 O 3 , TiO 2 , ZrO 2 , SiO 2 , B 2 O 3 .
  • the particle size distribution of metal oxides is preferably between 3 ⁇ m and 20 ⁇ m.
  • the material with high infrared ray reflective feature is a type of nitrite such as Si 3 N 4.
  • the material with high infrared ray reflective feature comprises glass spherules with average spherule diameter between 3 ⁇ m and 40 ⁇ m that are coated with metal oxide pigments like TiO 2 , SnO 2 or CeO 2 to improve their reflective properties.
  • the diameters of glass spherules are variable so as to reflect infrared rays in different wavelengths.
  • the material with high infrared ray reflective feature is Bismuth Vanadate (BiVO 4 ) based, having near infrared (NIR) reflective feature with particle sizes between 0.2 ⁇ m and 10 ⁇ m.
  • Bismuth Vanadate (BiVO 4 ) which is an inorganic pigment, is a material with high chemical resistance.
  • the material with high infrared ray reflective feature is silicon carbide having particle sizes between 0.5 ⁇ m and 10 ⁇ m.
  • the muffler of the present invention the mechanical and chemical resistance of which is increased by the PBT and glass fiber mixture comprises a material with high infrared ray reflective feature.
  • the rays in infrared wavelength are absorbed less on the muffler surface and reflected and the temperature of the gas inside the muffler is prevented from increasing.
  • Figure 1 – is the perspective view of a compressor related to an embodiment of the present invention.
  • the compressor (1) of the present invention comprises a material that provides muffling of the noise created during delivery of the refrigerant fluid to the compressor (1), that is 40 % - 70 % polybutylene terephthalate (PBT) by weight, 3 % - 35 % glass fiber by weight and has a high infrared ray reflective feature.
  • PBT polybutylene terephthalate
  • Polybutylene terephthalate (PBT) that has chemical resistance to the oil and fluid inside the compressor (1) is merged with glass fiber and the mechanical resistance of the muffler (2) is improved.
  • the muffler (1) comprises a material, together the PBT and glass fiber mixture, with high reflective properties, that prevents heating of the muffler (2) by radiation and that reflects the infrared rays almost entirely without absorbing.
  • the efficiency of the compressor (1) is increased.
  • the muffler (2) comprises a material in a percentage between 0.1% and 15% by weight, having the feature of highly reflecting the infrared rays.
  • the material with the high infrared ray reflecting feature is a metal oxide like Al 2 O 3 , TiO 2 , ZrO 2 , SiO 2 , B 2 O 3 .
  • the material with high infrared ray reflective feature is a type of nitrite like Silicon Nitrite (Si 3 N 4 ) , Titanium Nitrite (TiN). Titanium Nitrite (TiN) is resistant against corrosion and a good infrared ray reflector.
  • Silicon Nitrite (Si 3 N 4 ) which is an inert material, the resistance of the muffler (2) against chemicals is improved.
  • the average particle size of the material with high infrared ray reflecting feature is between 3 ⁇ m and 100 ⁇ m.
  • the muffler (2) can reflect infrared rays of different wavelengths.
  • the average particle size of the material with high infrared ray reflecting feature is between 3 ⁇ m and 100 ⁇ m.
  • the particle size dispersion of the material with high infrared ray reflecting feature is heterogeneous and thus heat transfer between particles by way of conduction is low.
  • heat transfer by radiation and conduction is decreased and the increase in the temperature of the gas circulating inside the compressor (1) is prevented.
  • the material with high infrared ray reflective feature comprises glass spherules with average spherule diameter between 3 ⁇ m and 40 ⁇ m that are coated with metal oxide pigments like TiO 2 , SnO 2 or CeO 2 to improve their reflective properties.
  • Glass material forms a good refracting and reflecting medium.
  • the spherical geometry of the glass amplifies the reflective properties of the material together with the metal oxides coated on the glass spherules.
  • the muffler (2) reflects the rays in the infrared wavelength almost without absorbing at all and heating of the muffler (2) by radiation is prevented.
  • the material with high infrared ray reflective feature is Bismuth Vanadate (BiVO 4 ) based, having near infrared (NIR) reflective feature with particle sizes between 0.2 ⁇ m and 10 ⁇ m.
  • NIR near infrared
  • the material with high infrared ray reflective feature is silicon carbide having particle sizes between 0.5 ⁇ m and 10 ⁇ m.
  • the muffler (2) is enabled to reflect the rays of different wavelengths without absorbing by means of the muffler (2) comprising the material with high infrared ray reflective feature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

The present invention relates to a compressor (1 ), chennical resistance and energy consumption of which is improved, comprising a muffler (2) that provides the muffling of the noise created during delivery of the refrigerant fluid to the compressor (1).

Description

A COMPRESSOR COMPRISING A MUFFLER
The present invention relates to a compressor that comprises a muffler.
In cooling devices, for example in the compressors used in refrigerators, the movement of the refrigerant fluid is a significant source of noise. During the operation of the compressor, the sound energy originating from the movement of the refrigerant fluid is transmitted to the compressor casing and is dispersed to the outside environment as compressor noise. In the state of the art compressors, the use of a muffler produced from plastic material that enables the sound power level to be decreased is known. The material of the muffler disposed inside the compressor must have high chemical resistance against the oil and fluid included in the compressor. In the compressor, the heat formed at the motor and piston heats the compressor muffler and hence the gas inside by radiation and this situation decreases compressor efficiency. Therefore, the muffler has to be produced from a material that both has high chemical resistance and that decreases heat transfer by radiation by reflecting the infrared rays.
In the state of the art Chinese Patent Application No. CN101922438, a muffler suitable to be used in the compressor is disclosed that comprises polybutylene terephthalate (PTB) and glass fiber.
The aim of the present invention is the realization of a compressor, whereof the energy efficiency is increased.
The compressor realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a muffler that prevents noise. The muffler is produced from the mixture of polybutylene terephthalate (PTB), glass fiber and a material that almost entirely reflects the infrared rays that fall on its surface. The mechanical resistance of PBT is increased with glass fiber. Since heating of the muffler by radiation is not realized by means of the reflective material, the temperature of the fluid passing through the muffler does not increase and thus the compressor efficiency is prevented from decreasing.
In an embodiment of the present invention, the muffler comprises a material in a percentage between 0.1 and 15 by weight, having the feature of highly reflecting the infrared rays.
In an embodiment of the present invention, the material having the high infrared ray reflecting feature is a metal oxide like Al2O3, TiO2, ZrO2, SiO2, B2O3. The particle size distribution of metal oxides is preferably between 3 μm and 20 μm.
In an embodiment of the present invention, the material with high infrared ray reflective feature is a type of nitrite such as Si3N4.
In an embodiment of the present invention, the material with high infrared ray reflective feature comprises glass spherules with average spherule diameter between 3 μm and 40 μm that are coated with metal oxide pigments like TiO2, SnO2 or CeO2 to improve their reflective properties. The diameters of glass spherules are variable so as to reflect infrared rays in different wavelengths.
In an embodiment of the present invention, the material with high infrared ray reflective feature is Bismuth Vanadate (BiVO4) based, having near infrared (NIR) reflective feature with particle sizes between 0.2 μm and 10 μm. Bismuth Vanadate (BiVO4) which is an inorganic pigment, is a material with high chemical resistance. Thus, while the compressor efficiency is increased, abrasion of the muffler due to chemicals inside the compressor is prevented.
In an embodiment of the present invention, the material with high infrared ray reflective feature is silicon carbide having particle sizes between 0.5 μm and 10 μm.
The muffler of the present invention, the mechanical and chemical resistance of which is increased by the PBT and glass fiber mixture comprises a material with high infrared ray reflective feature. Thus, the rays in infrared wavelength are absorbed less on the muffler surface and reflected and the temperature of the gas inside the muffler is prevented from increasing.
The compressor realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
Figure 1 – is the perspective view of a compressor related to an embodiment of the present invention.
The elements illustrated in the figures are numbered as follows:
  1. Compressor
  2. Muffler
In cooling devices, for example in refrigerators, the circulation of the refrigerant fluid is provided by a compressor (1). The compressor (1) of the present invention comprises a material that provides muffling of the noise created during delivery of the refrigerant fluid to the compressor (1), that is 40 % - 70 % polybutylene terephthalate (PBT) by weight, 3 % - 35 % glass fiber by weight and has a high infrared ray reflective feature. Polybutylene terephthalate (PBT) that has chemical resistance to the oil and fluid inside the compressor (1) is merged with glass fiber and the mechanical resistance of the muffler (2) is improved. In order to increase the energy efficiency of the compressor (1), the muffler (1) comprises a material, together the PBT and glass fiber mixture, with high reflective properties, that prevents heating of the muffler (2) by radiation and that reflects the infrared rays almost entirely without absorbing. Thus, the efficiency of the compressor (1) is increased.
In an embodiment of the present invention, the muffler (2) comprises a material in a percentage between 0.1% and 15% by weight, having the feature of highly reflecting the infrared rays.
In an embodiment of the present invention, the material with the high infrared ray reflecting feature is a metal oxide like Al2O3, TiO2, ZrO2, SiO2, B2O3.
In an embodiment of the present invention, the material with high infrared ray reflective feature is a type of nitrite like Silicon Nitrite (Si3N4), Titanium Nitrite (TiN). Titanium Nitrite (TiN) is resistant against corrosion and a good infrared ray reflector. By means of the Silicon Nitrite (Si3N4) , which is an inert material, the resistance of the muffler (2) against chemicals is improved.
In an embodiment of the present invention, the average particle size of the material with high infrared ray reflecting feature is between 3 μm and 100 μm. By means of the variable particle size of the material with high infrared ray reflecting feature, the muffler (2) can reflect infrared rays of different wavelengths.
In an embodiment of the present invention, the average particle size of the material with high infrared ray reflecting feature is between 3 μm and 100 μm. The particle size dispersion of the material with high infrared ray reflecting feature is heterogeneous and thus heat transfer between particles by way of conduction is low. In the muffler (2) heat transfer by radiation and conduction is decreased and the increase in the temperature of the gas circulating inside the compressor (1) is prevented.
In an embodiment of the present invention, the material with high infrared ray reflective feature comprises glass spherules with average spherule diameter between 3 μm and 40 μm that are coated with metal oxide pigments like TiO2, SnO2 or CeO2 to improve their reflective properties. Glass material forms a good refracting and reflecting medium. The spherical geometry of the glass amplifies the reflective properties of the material together with the metal oxides coated on the glass spherules. Thus, the muffler (2) reflects the rays in the infrared wavelength almost without absorbing at all and heating of the muffler (2) by radiation is prevented.
In an embodiment of the present invention, the material with high infrared ray reflective feature is Bismuth Vanadate (BiVO4) based, having near infrared (NIR) reflective feature with particle sizes between 0.2 μm and 10 μm. By means of the Bismuth Vanadate (BiVO4) based material having low absorption values in near infrared wavelength, heat transfer to the muffler (2) by radiation is decreased.
In an embodiment of the present invention, the material with high infrared ray reflective feature is silicon carbide having particle sizes between 0.5 μm and 10 μm.
With the present invention, the muffler (2) is enabled to reflect the rays of different wavelengths without absorbing by means of the muffler (2) comprising the material with high infrared ray reflective feature.

Claims (8)

  1. A compressor (1) characterized by a muffler (2) comprising a material that provides muffling of the noise created during delivery of the refrigerant fluid to the compressor (1), which is 40% - 70% polybutylene terephthalate (PBT) by weight, 3% - 35% glass fiber by weight and has a high infrared ray reflective feature.
  2. A compressor (1) as in Claim 1, characterized by the muffler (2) comprising the material with high infrared ray reflective feature which is 0.1% – 15% by weight.
  3. A compressor (1) as in Claim 1 or Claim 2, characterized by the muffler (2) comprising the material with high infrared ray reflective feature like the metal oxide Al2O3, TiO2, ZrO2, SiO2, B2O3.
  4. A compressor (1) as in Claim 1 or Claim 2, characterized by the muffler (2) comprising the material with high infrared ray reflective feature like Si3N4 which is a nitrite.
  5. A compressor (1) as in any one of the above claims, characterized by the muffler (2) comprising the material with high infrared ray reflective feature with average particle size between 3 μm and 100 μm.
  6. A compressor (1) as in Claim 1 or Claim 2, characterized by the muffler (2) comprising material with high infrared ray reflective feature, formed of glass spherules with average particle size between 3 μm and 40 μm, coated by metal oxide pigments like TiO2, SnO2 or CeO2 to improve their reflective properties.
  7. A compressor (1) as in Claim 1 or Claim 2, characterized by the muffler (2) comprising material with high infrared ray reflective feature that is Bismuth Vanadate (BiVO4) based, having near infrared (NIR) reflective feature, with particle size between 0.2 μm and 10 μm.
  8. A compressor (1) as in Claim 1 or Claim 2, characterized by the muffler (2) comprising material with high infrared ray reflective feature which is silicon carbide with particle size between 0.5 μm and 10 μm.
PCT/EP2015/059046 2014-06-12 2015-04-27 A compressor comprising a muffler Ceased WO2015188972A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15720046.0A EP3155262A1 (en) 2014-06-12 2015-04-27 A compressor comprising a muffler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201406857 2014-06-12
TRA2014/06857 2014-06-12

Publications (1)

Publication Number Publication Date
WO2015188972A1 true WO2015188972A1 (en) 2015-12-17

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Application Number Title Priority Date Filing Date
PCT/EP2015/059046 Ceased WO2015188972A1 (en) 2014-06-12 2015-04-27 A compressor comprising a muffler

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EP (1) EP3155262A1 (en)
WO (1) WO2015188972A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062223A1 (en) * 2004-12-06 2006-06-15 Matsushita Electric Industrial Co., Ltd. Hermetic compressor
JP2009221872A (en) * 2008-03-13 2009-10-01 Toshiba Carrier Corp Hermetic compressor and refrigerating cycle device
KR20100083650A (en) * 2009-01-14 2010-07-22 엘지전자 주식회사 Reciprocating compressor
CN101922438A (en) * 2009-06-16 2010-12-22 上海日立电器有限公司 Compressor muffler
EP2267311A1 (en) * 2008-03-18 2010-12-29 Daikin Industries, Ltd. Freezing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062223A1 (en) * 2004-12-06 2006-06-15 Matsushita Electric Industrial Co., Ltd. Hermetic compressor
JP2009221872A (en) * 2008-03-13 2009-10-01 Toshiba Carrier Corp Hermetic compressor and refrigerating cycle device
EP2267311A1 (en) * 2008-03-18 2010-12-29 Daikin Industries, Ltd. Freezing device
KR20100083650A (en) * 2009-01-14 2010-07-22 엘지전자 주식회사 Reciprocating compressor
CN101922438A (en) * 2009-06-16 2010-12-22 上海日立电器有限公司 Compressor muffler

Also Published As

Publication number Publication date
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