GB201218469D0 - A fan assembly - Google Patents

A fan assembly

Info

Publication number
GB201218469D0
GB201218469D0 GBGB1218469.3A GB201218469A GB201218469D0 GB 201218469 D0 GB201218469 D0 GB 201218469D0 GB 201218469 A GB201218469 A GB 201218469A GB 201218469 D0 GB201218469 D0 GB 201218469D0
Authority
GB
United Kingdom
Prior art keywords
nozzle
air flow
wall
bore
air
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.)
Withdrawn
Application number
GBGB1218469.3A
Other versions
GB2496263A (en
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.)
Dyson Technology Ltd
Original Assignee
Dyson Technology 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 Dyson Technology Ltd filed Critical Dyson Technology Ltd
Priority to GB1218469.3A priority Critical patent/GB2496263A/en
Publication of GB201218469D0 publication Critical patent/GB201218469D0/en
Publication of GB2496263A publication Critical patent/GB2496263A/en
Withdrawn legal-status Critical Current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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles

Abstract

A fan assembly includes an annular nozzle and means for creating a primary air flow. The nozzle 102 includes an outer wall 106 and an inner wall 108 surrounded by the outer wall, the inner wall defining a bore having a bore axis. The nozzle also includes an interior passage 128 located between the inner and outer walls, and extending about the bore axis for receiving an air flow, and an air outlet 104 located at the front (or trailing edge 118) of the nozzle for emitting the air flow. The nozzle is configured to emit the air flow through the air outlet in a direction extending away from the bore axis, wherein the interior passage comprises a convergent air channel extending towards the air outlet. Variation of the direction of the air flow from the nozzle can be used to vary the degree of entrainment of secondary air flow through the bore.
GB1218469.3A 2010-11-02 2010-11-02 An Annular Fan Nozzle Withdrawn GB2496263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1218469.3A GB2496263A (en) 2010-11-02 2010-11-02 An Annular Fan Nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1218469.3A GB2496263A (en) 2010-11-02 2010-11-02 An Annular Fan Nozzle

Publications (2)

Publication Number Publication Date
GB201218469D0 true GB201218469D0 (en) 2012-11-28
GB2496263A GB2496263A (en) 2013-05-08

Family

ID=47324783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1218469.3A Withdrawn GB2496263A (en) 2010-11-02 2010-11-02 An Annular Fan Nozzle

Country Status (1)

Country Link
GB (1) GB2496263A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089768A (en) * 2013-08-28 2016-11-09 滁州华尊电气科技有限公司 A kind of bladeless fan
WO2021088775A1 (en) * 2019-11-08 2021-05-14 追觅科技(上海)有限公司 Sealed damping device and bladeless fan
WO2021143393A1 (en) * 2020-01-19 2021-07-22 广东美的环境科技有限公司 Air duct component and air supply device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488467A (en) * 1947-09-12 1949-11-15 Lisio Salvatore De Motor-driven fan
NL110393C (en) * 1955-11-29 1965-01-15 Bertin & Cie

Also Published As

Publication number Publication date
GB2496263A (en) 2013-05-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)