GB1461776A - Fans - Google Patents

Fans

Info

Publication number
GB1461776A
GB1461776A GB2647373A GB2647373A GB1461776A GB 1461776 A GB1461776 A GB 1461776A GB 2647373 A GB2647373 A GB 2647373A GB 2647373 A GB2647373 A GB 2647373A GB 1461776 A GB1461776 A GB 1461776A
Authority
GB
United Kingdom
Prior art keywords
discs
openings
spaces
casing
width
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
GB2647373A
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.)
British Gas Corp
Original Assignee
British Gas Corp
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 British Gas Corp filed Critical British Gas Corp
Priority to GB2647373A priority Critical patent/GB1461776A/en
Publication of GB1461776A publication Critical patent/GB1461776A/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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/161—Shear force pumps

Landscapes

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

Abstract

1461776 Centrifugal fans BRITISH GAS CORP 2 Sept 1974 [4 June 1973] 26473/73 Heading F1C A centrifugal fan comprises a series of frustoconical or, as shown, flat impeller discs 1 having openings at or spaced outwardly from their centres and mounted on a rotatable carrier 3, and a casing 6 having an inlet 9 for admitting air to the openings and an outlet 7, the width of the spaces between adjacent discs and the rotational speed being such that the flow through the spaces is laminar. The openings 15 in the discs may be segmental, as shown, or circular. The openings 15 and a fastening disc 14 may be omitted, annular spacers 13 then being replaced by spacer washers around fixing bolts, and the air then entering the spaces between the discs at the inner periphery of the discs. The width of each space is between 0À25 and 2 mm, preferably 0.5 to 1 mm, the impeller speed being 3,000 rev./min. The casing 6 is of volute form giving a degree of diffusion just sufficient to offset the loss of pressure due to friction in the volute.
GB2647373A 1973-06-04 1973-06-04 Fans Expired GB1461776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2647373A GB1461776A (en) 1973-06-04 1973-06-04 Fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2647373A GB1461776A (en) 1973-06-04 1973-06-04 Fans

Publications (1)

Publication Number Publication Date
GB1461776A true GB1461776A (en) 1977-01-19

Family

ID=10244202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2647373A Expired GB1461776A (en) 1973-06-04 1973-06-04 Fans

Country Status (1)

Country Link
GB (1) GB1461776A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000472A1 (en) * 1978-08-30 1980-03-20 M Gurth Method and apparatus for pumping fragile articles
WO1980000471A1 (en) * 1978-08-30 1980-03-20 M Gurth Method and apparatus for pumping large solid articles
US4335994A (en) * 1978-08-30 1982-06-22 Gurth Max Ira Method and apparatus for pumping large solid articles
US4768920A (en) * 1978-08-30 1988-09-06 Gurth Max Ira Method for pumping fragile or other articles in a liquid medium
US4773819A (en) * 1978-08-30 1988-09-27 Gurth Max Ira Rotary disc slurry pump
US5192183A (en) * 1990-09-11 1993-03-09 International Business Machines Corporation Laminar flow fans
US20170300094A1 (en) * 2016-04-14 2017-10-19 Microsoft Technology Licensing, Llc Viscous flow blower for thermal management of an electronic device
US10253786B2 (en) * 2016-06-08 2019-04-09 Nidec Corporation Blower apparatus
CN111437671A (en) * 2019-01-17 2020-07-24 青岛海尔空调器有限总公司 Air purifier

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000472A1 (en) * 1978-08-30 1980-03-20 M Gurth Method and apparatus for pumping fragile articles
WO1980000471A1 (en) * 1978-08-30 1980-03-20 M Gurth Method and apparatus for pumping large solid articles
US4335994A (en) * 1978-08-30 1982-06-22 Gurth Max Ira Method and apparatus for pumping large solid articles
US4768920A (en) * 1978-08-30 1988-09-06 Gurth Max Ira Method for pumping fragile or other articles in a liquid medium
US4773819A (en) * 1978-08-30 1988-09-27 Gurth Max Ira Rotary disc slurry pump
US5192183A (en) * 1990-09-11 1993-03-09 International Business Machines Corporation Laminar flow fans
US20170300094A1 (en) * 2016-04-14 2017-10-19 Microsoft Technology Licensing, Llc Viscous flow blower for thermal management of an electronic device
CN109074139A (en) * 2016-04-14 2018-12-21 微软技术许可有限责任公司 The VISCOUS FLOW air blower of heat management for electronic equipment
US10503220B2 (en) * 2016-04-14 2019-12-10 Microsoft Technology Licensing, Llc Viscous flow blower for thermal management of an electronic device
CN109074139B (en) * 2016-04-14 2021-08-17 微软技术许可有限责任公司 Viscous flow blower for thermal management of electronic devices
US10253786B2 (en) * 2016-06-08 2019-04-09 Nidec Corporation Blower apparatus
CN111437671A (en) * 2019-01-17 2020-07-24 青岛海尔空调器有限总公司 Air purifier
CN111437671B (en) * 2019-01-17 2023-04-14 青岛海尔空调器有限总公司 Air purifier

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940901