GB1338258A - Extractor fans - Google Patents

Extractor fans

Info

Publication number
GB1338258A
GB1338258A GB2275170A GB2275170A GB1338258A GB 1338258 A GB1338258 A GB 1338258A GB 2275170 A GB2275170 A GB 2275170A GB 2275170 A GB2275170 A GB 2275170A GB 1338258 A GB1338258 A GB 1338258A
Authority
GB
United Kingdom
Prior art keywords
housing
extractor fans
fan
myson
brooks
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
GB2275170A
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.)
MYSON BROOKS Ltd
Original Assignee
MYSON BROOKS Ltd
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 MYSON BROOKS Ltd filed Critical MYSON BROOKS Ltd
Priority to GB2275170A priority Critical patent/GB1338258A/en
Publication of GB1338258A publication Critical patent/GB1338258A/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

1338258 Cooling electric motors MYSON BROOKS Ltd 19 April 1971 [11 May 1970] 22751/70 Heading H2A [Also in Division F1] In an extractor fan, e.g. for roof mounting, having an impeller 3 driven by an electric motor mounted in a housing 7, a restriction 10 in the fan discharge provides a Venturi effect to withdraw air from the housing via passageway 12, the housing being supplied with fresh air via inlets 13.
GB2275170A 1971-04-19 1971-04-19 Extractor fans Expired GB1338258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2275170A GB1338258A (en) 1971-04-19 1971-04-19 Extractor fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2275170A GB1338258A (en) 1971-04-19 1971-04-19 Extractor fans

Publications (1)

Publication Number Publication Date
GB1338258A true GB1338258A (en) 1973-11-21

Family

ID=10184498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2275170A Expired GB1338258A (en) 1971-04-19 1971-04-19 Extractor fans

Country Status (1)

Country Link
GB (1) GB1338258A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117982A (en) * 1982-03-18 1983-10-19 Jeumont Schneider Improvements in the cooling of motors driving extraction fans
FR3035457A1 (en) * 2015-04-22 2016-10-28 Aldes Aeraulique VENTILATION SUBASSEMBLY AND ASSOCIATED VENTILATION ASSEMBLY

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117982A (en) * 1982-03-18 1983-10-19 Jeumont Schneider Improvements in the cooling of motors driving extraction fans
FR3035457A1 (en) * 2015-04-22 2016-10-28 Aldes Aeraulique VENTILATION SUBASSEMBLY AND ASSOCIATED VENTILATION ASSEMBLY

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee