GB1456219A - Fan and apparatus including the same - Google Patents

Fan and apparatus including the same

Info

Publication number
GB1456219A
GB1456219A GB5522773A GB5522773A GB1456219A GB 1456219 A GB1456219 A GB 1456219A GB 5522773 A GB5522773 A GB 5522773A GB 5522773 A GB5522773 A GB 5522773A GB 1456219 A GB1456219 A GB 1456219A
Authority
GB
United Kingdom
Prior art keywords
debris
fan
air
louvres
discharged
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
GB5522773A
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.)
ZSOLDOS G
Original Assignee
ZSOLDOS G
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 ZSOLDOS G filed Critical ZSOLDOS G
Priority to GB5522773A priority Critical patent/GB1456219A/en
Publication of GB1456219A publication Critical patent/GB1456219A/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps

Landscapes

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

Abstract

1456219 Centrifugal seperator G ZSOL DOS 28 Nov 1973 55227/73 Heading B2P [Also in Divisions E1, F1 and F2] The suction fan of a suction sweeper for roads has an involute casing wall 29 formed over its upper half in a region extending over a subtended angle of up to 180‹, typically 145‹, from the beginning of the involute in the direction A of impeller rotation with louvres 33 (or a single continuous opening). It is found that little or none of the debris entrained in the air drawn into the fan reaches this region. Air discharged through the louvres 33 to atmosphere is therefore substantially debris-free. An outer wall 30 may be provided, the air discharged through the louvres 33 then passing to atmosphere via a filter (not shown) in the lower half of the space between the walls 29, 30, whereby any remaining debris is removed. The remainder of the air, containing substantially all of the debris, but amounting typically to only 30 to 35% of the air entering the 'fan is discharged at 102 to a storage bag. The debris entering the fan is comminuted to some extent by cutting edges 73 on the impeller blades 25.
GB5522773A 1973-11-28 1973-11-28 Fan and apparatus including the same Expired GB1456219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5522773A GB1456219A (en) 1973-11-28 1973-11-28 Fan and apparatus including the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5522773A GB1456219A (en) 1973-11-28 1973-11-28 Fan and apparatus including the same

Publications (1)

Publication Number Publication Date
GB1456219A true GB1456219A (en) 1976-11-24

Family

ID=10473310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5522773A Expired GB1456219A (en) 1973-11-28 1973-11-28 Fan and apparatus including the same

Country Status (1)

Country Link
GB (1) GB1456219A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232994A (en) * 1977-01-14 1980-11-11 Hitachi, Ltd. Centrifugal turbomachine
EP0340471A2 (en) * 1988-04-30 1989-11-08 Asea Brown Boveri Ag Radial fan with integral dirt separator
GB2233391A (en) * 1989-04-29 1991-01-09 Peter Warwick Farren Ventilation equipment
FR2819296A1 (en) * 2001-01-10 2002-07-12 Mathieu Yno Suction turbine e.g. for urban cleaning vehicle has trap and outlet for liquid droplets and solid particles carried by in-drawn air
CN109322860A (en) * 2018-10-25 2019-02-12 赖繁荣 A kind of centrifugal fan and sewage disposal system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232994A (en) * 1977-01-14 1980-11-11 Hitachi, Ltd. Centrifugal turbomachine
EP0340471A2 (en) * 1988-04-30 1989-11-08 Asea Brown Boveri Ag Radial fan with integral dirt separator
EP0340471A3 (en) * 1988-04-30 1990-01-17 Asea Brown Boveri Ag Radial fan with integral dirt separator
AU620607B2 (en) * 1988-04-30 1992-02-20 Daimlerchrysler Ag Radial fan with integrated dust separator
GB2233391A (en) * 1989-04-29 1991-01-09 Peter Warwick Farren Ventilation equipment
FR2819296A1 (en) * 2001-01-10 2002-07-12 Mathieu Yno Suction turbine e.g. for urban cleaning vehicle has trap and outlet for liquid droplets and solid particles carried by in-drawn air
CN109322860A (en) * 2018-10-25 2019-02-12 赖繁荣 A kind of centrifugal fan and sewage disposal system

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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)
PCNP Patent ceased through non-payment of renewal fee
728C Application made for restoration (sect. 28/1977)
728R Application refused (sect. 28/1977)