FR2059147A5 - - Google Patents

Info

Publication number
FR2059147A5
FR2059147A5 FR7030900A FR7030900A FR2059147A5 FR 2059147 A5 FR2059147 A5 FR 2059147A5 FR 7030900 A FR7030900 A FR 7030900A FR 7030900 A FR7030900 A FR 7030900A FR 2059147 A5 FR2059147 A5 FR 2059147A5
Authority
FR
France
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
FR7030900A
Other languages
French (fr)
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.)
Metabowerke GmbH and Co
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
Metabowerke Closs Rauch und Schnizler KG
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 Metabowerke GmbH and Co, Metabowerke Closs Rauch und Schnizler KG filed Critical Metabowerke GmbH and Co
Application granted granted Critical
Publication of FR2059147A5 publication Critical patent/FR2059147A5/fr
Expired 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7030900A 1969-08-27 1970-08-24 Expired FR2059147A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691943478 DE1943478A1 (de) 1969-08-27 1969-08-27 Geblaese,insbesondere Luefter fuer einen Elektromotor

Publications (1)

Publication Number Publication Date
FR2059147A5 true FR2059147A5 (de) 1971-05-28

Family

ID=5743873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7030900A Expired FR2059147A5 (de) 1969-08-27 1970-08-24

Country Status (4)

Country Link
US (1) US3723781A (de)
DE (1) DE1943478A1 (de)
FR (1) FR2059147A5 (de)
SE (1) SE358520B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795319A (en) * 1986-11-17 1989-01-03 Popovich John M Quiet hair dryer
JP4239478B2 (ja) * 2002-05-17 2009-03-18 アイシン・エィ・ダブリュ株式会社 変速機ケース
CN102852858A (zh) * 2012-09-25 2013-01-02 苏州原点工业设计有限公司 无外露风叶的静音风扇

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017132A (en) * 1934-01-13 1935-10-15 Sireno Company Inc Siren
US2528026A (en) * 1948-08-18 1950-10-31 Pennsylvania Res Corp High-frequency siren
US2881337A (en) * 1957-07-01 1959-04-07 Gen Electric Acoustically treated motor
US3089458A (en) * 1958-03-14 1963-05-14 Realisations Ultrasoniques Sa Centrifugal acceleration siren device
US3121220A (en) * 1963-01-21 1964-02-11 William F Lahey Sleep-inducing sound-producing device
GB1154020A (en) * 1965-09-08 1969-06-04 Michalis Vios The Ultrasonic Siren Applied on Seagoing Ships for Defogging the Ranges of Vision
US3432703A (en) * 1966-12-12 1969-03-11 Black & Decker Mfg Co Portable electric drill
US3476960A (en) * 1968-07-01 1969-11-04 Singer Co Double insulated power tools

Also Published As

Publication number Publication date
DE1943478A1 (de) 1971-03-04
US3723781A (en) 1973-03-27
SE358520B (de) 1973-07-30

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Legal Events

Date Code Title Description
ST Notification of lapse