GB1220717A - Improvements in sound-reducing housing for alternating current electric apparatus - Google Patents

Improvements in sound-reducing housing for alternating current electric apparatus

Info

Publication number
GB1220717A
GB1220717A GB44595/68A GB4459568A GB1220717A GB 1220717 A GB1220717 A GB 1220717A GB 44595/68 A GB44595/68 A GB 44595/68A GB 4459568 A GB4459568 A GB 4459568A GB 1220717 A GB1220717 A GB 1220717A
Authority
GB
United Kingdom
Prior art keywords
housing
opening
tuned
duct
sound
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.)
Expired
Application number
GB44595/68A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1220717A publication Critical patent/GB1220717A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/33—Arrangements for noise damping

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Duct Arrangements (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

1,220,717. Electromechanical resonators. GENERAL ELECTRIC CO. 19 Sept., 1968 [26 Sept., 1967], No. 44595/68. Heading H3U. [Also in Division H1] In a housing 1 enclosing air-cooled A.C. electrical apparatus, such as a transformer 10, and having an opening, as 3, for the passage of cooling air into or out of the housing, the transmission of sound through the opening is reduced by means of a tuned acoustic resonator comprising a resonating chamber, as 29, communicating through an orifice 29a with an air passageway adjacent the opening. In Fig. 2 there are two openings 3 and 4 in the housing and adjacent each is disposed, either inside or outside the housing, a structure (Fig. 3, not shown) comprising sets of resonators and an associated rectangular air duct. Each set of resonators comprises a number of resonating chambers (29) tuned to the same even harmonic of the supply frequency and disposed side by side to extend across the full width of the duct, other sets tuned to different harmonics being spaced along the duct. The orifices are tubes 29a, 30a of rectangular cross-section.
GB44595/68A 1967-09-26 1968-09-19 Improvements in sound-reducing housing for alternating current electric apparatus Expired GB1220717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67054067A 1967-09-26 1967-09-26

Publications (1)

Publication Number Publication Date
GB1220717A true GB1220717A (en) 1971-01-27

Family

ID=24690807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44595/68A Expired GB1220717A (en) 1967-09-26 1968-09-19 Improvements in sound-reducing housing for alternating current electric apparatus

Country Status (4)

Country Link
US (1) US3451503A (en)
DE (1) DE1763848A1 (en)
FR (1) FR1603294A (en)
GB (1) GB1220717A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326028A (en) * 1997-05-27 1998-12-09 Peter George Rampton A transformer housing with a ventilated base arrangement
GB2378044A (en) * 2001-07-27 2003-01-29 Mark Buddha Transformer enclosure with a chimney cooling arrangement
US6620511B1 (en) 1999-07-02 2003-09-16 Basf Coatings Ag Aqueous coating material, especially aqueous filler or protective base against stones
US6777090B2 (en) 1999-12-22 2004-08-17 Basf Coatings Ag Substance mixture which can be cured thermally and by using actinic radiation, and the use thereof
US6780897B1 (en) 1999-10-02 2004-08-24 Basf Coating Ag Solid substance mixture containing bonds that can be activated by actinic radiation and the use thereof
US6797771B2 (en) 2000-02-02 2004-09-28 Basf Coatings Ag Aqueous composition that can be hardened physically, thermally or thermally and with actinic radiation and the derivatives and production thereof
US6822038B1 (en) 1999-07-12 2004-11-23 Basf Coatings Ac Aqueous coating substance, method for its production and its use
US7261926B2 (en) 2001-06-21 2007-08-28 Basf Coatings Ag Solventborne coating substance that can be cured physically, thermally or thermally and by using actinic radiation and use thereof
US7297375B2 (en) 2000-02-02 2007-11-20 Basf Coatings Ag Aqueous coating material that can be hardened physically, thermally or thermally and with actinic radiation and the utilization thereof
DE102008029580A1 (en) 2008-06-21 2009-12-24 Basf Coatings Ag Producing coatings, useful for coating a substrate e.g. metal band, comprises applying electron radiation curable, coating composition on substrate, heating the composition on the substrate and curing the composition by electron radiation
DE102008047359A1 (en) 2008-09-15 2010-04-15 Basf Coatings Ag Curing compositions for coating composites
US7855266B2 (en) 1999-11-05 2010-12-21 Basf Coatings Ag Method for multilayer coatings with self-crosslinking graft polyurethane copolymers, self-crosslinking polyurethanes and graft copolymers thereof
WO2016038327A1 (en) * 2014-09-08 2016-03-17 Sonobex Limited Apparatus and methods
US9607600B2 (en) 2009-02-06 2017-03-28 Sonobex Limited Attenuators, arrangements of attenuators, acoustic barriers and methods for constructing acoustic barriers
RU2634589C2 (en) * 2016-02-24 2017-11-01 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" Enclosed-type low-noise electro transforming substation
CN111206985A (en) * 2018-11-21 2020-05-29 通用汽车环球科技运作有限责任公司 Vehicle charge air cooler with integrated resonator

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7123756U (en) * 1971-06-21 1973-12-20 Palitex Project Co Gmbh Spinning or twisting machine, especially two-for-one twisting machine
JPS517234A (en) * 1974-07-09 1976-01-21 Toyoda Automatic Loom Works Nenshikitono boonsochi
US4146112A (en) * 1977-10-31 1979-03-27 General Electric Company Sound reducing baffle for electrical apparatus
AU5889790A (en) * 1989-12-04 1991-06-06 General Electric Company Integral silencer for electric motors
US5710533A (en) * 1995-07-31 1998-01-20 General Electric Company Electrical transformer with reduced fan noise
DE19914896A1 (en) 1999-04-01 2000-10-05 Basf Coatings Ag Aqueous coating material, e.g. for painting cars or industrial substrates, contains a polyurethane binder based on bis-4-isocyanato-cyclohexyl-methane with a low trans-trans content, plus a crosslinker
KR100693037B1 (en) * 2004-08-31 2007-03-12 삼성전자주식회사 Noise reducing resonator and the laser scanning unit with the same
US20070231577A1 (en) * 2006-03-30 2007-10-04 Basf Corporation Coatings for polycarbonate windows
BR112015008758A8 (en) * 2012-10-22 2017-12-26 Abb Technology Ag TRANSFORMER THAT HAS AN INTERLOCK CORE STRUCTURE
BR112015028893B1 (en) * 2013-06-14 2021-10-19 Abb Schweiz Ag APPLIANCE TO INVOLVE MEDIUM AND/OR HIGH VOLTAGE UNIT AND ELECTRIC POWER ASSEMBLY
JP6350901B2 (en) * 2014-05-13 2018-07-04 株式会社リコー Optical scanning apparatus and image forming apparatus
US9904229B2 (en) 2014-12-09 2018-02-27 Ricoh Company, Ltd. Image forming apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297269A (en) * 1937-04-19 1942-09-29 Wendt Friedrich Test stand for internal combustion engines
US2308886A (en) * 1940-11-29 1943-01-19 Bell Telephone Labor Inc Acoustic wave filter
US2459322A (en) * 1945-03-16 1949-01-18 Allis Chalmers Mfg Co Stationary induction apparatus
US2892507A (en) * 1956-01-20 1959-06-30 Thomas P Kirkpatrick Flue type acoustic hood
US3210456A (en) * 1963-02-26 1965-10-05 Mc Graw Edison Co Ground level housing for electrical apparatus

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326028B (en) * 1997-05-27 2000-11-01 Peter George Rampton Housing for power transformers
GB2326028A (en) * 1997-05-27 1998-12-09 Peter George Rampton A transformer housing with a ventilated base arrangement
US6815494B2 (en) 1999-07-02 2004-11-09 Basf Coatings Ag Aqueous coating material, especially aqueous filler or protective base against stones
US6620511B1 (en) 1999-07-02 2003-09-16 Basf Coatings Ag Aqueous coating material, especially aqueous filler or protective base against stones
US6822038B1 (en) 1999-07-12 2004-11-23 Basf Coatings Ac Aqueous coating substance, method for its production and its use
US6780897B1 (en) 1999-10-02 2004-08-24 Basf Coating Ag Solid substance mixture containing bonds that can be activated by actinic radiation and the use thereof
US7855266B2 (en) 1999-11-05 2010-12-21 Basf Coatings Ag Method for multilayer coatings with self-crosslinking graft polyurethane copolymers, self-crosslinking polyurethanes and graft copolymers thereof
US6777090B2 (en) 1999-12-22 2004-08-17 Basf Coatings Ag Substance mixture which can be cured thermally and by using actinic radiation, and the use thereof
US6797771B2 (en) 2000-02-02 2004-09-28 Basf Coatings Ag Aqueous composition that can be hardened physically, thermally or thermally and with actinic radiation and the derivatives and production thereof
US7297375B2 (en) 2000-02-02 2007-11-20 Basf Coatings Ag Aqueous coating material that can be hardened physically, thermally or thermally and with actinic radiation and the utilization thereof
US7261926B2 (en) 2001-06-21 2007-08-28 Basf Coatings Ag Solventborne coating substance that can be cured physically, thermally or thermally and by using actinic radiation and use thereof
GB2378044A (en) * 2001-07-27 2003-01-29 Mark Buddha Transformer enclosure with a chimney cooling arrangement
DE102008029580A1 (en) 2008-06-21 2009-12-24 Basf Coatings Ag Producing coatings, useful for coating a substrate e.g. metal band, comprises applying electron radiation curable, coating composition on substrate, heating the composition on the substrate and curing the composition by electron radiation
DE102008047359A1 (en) 2008-09-15 2010-04-15 Basf Coatings Ag Curing compositions for coating composites
US9607600B2 (en) 2009-02-06 2017-03-28 Sonobex Limited Attenuators, arrangements of attenuators, acoustic barriers and methods for constructing acoustic barriers
WO2016038327A1 (en) * 2014-09-08 2016-03-17 Sonobex Limited Apparatus and methods
RU2634589C2 (en) * 2016-02-24 2017-11-01 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" Enclosed-type low-noise electro transforming substation
CN111206985A (en) * 2018-11-21 2020-05-29 通用汽车环球科技运作有限责任公司 Vehicle charge air cooler with integrated resonator

Also Published As

Publication number Publication date
FR1603294A (en) 1971-03-29
DE1763848A1 (en) 1971-12-30
US3451503A (en) 1969-06-24

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