SE8405068L - SPOT WITH DEVICE FOR ROTATING THE AIR FLOW INCOMING IN THE SCREW - Google Patents

SPOT WITH DEVICE FOR ROTATING THE AIR FLOW INCOMING IN THE SCREW

Info

Publication number
SE8405068L
SE8405068L SE8405068A SE8405068A SE8405068L SE 8405068 L SE8405068 L SE 8405068L SE 8405068 A SE8405068 A SE 8405068A SE 8405068 A SE8405068 A SE 8405068A SE 8405068 L SE8405068 L SE 8405068L
Authority
SE
Sweden
Prior art keywords
air flow
inlet
impeller
spot
screw
Prior art date
Application number
SE8405068A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE445061B (en
SE8405068D0 (en
Inventor
V V Pak
V I Kovalevskaya
V A Sidorenko
M M Kovalevskaya
V P Peredery
J V Vasiliev
Original Assignee
Do Politekh Inst
Do G Pk I Experiment
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 Do Politekh Inst, Do G Pk I Experiment filed Critical Do Politekh Inst
Priority to SE8405068A priority Critical patent/SE445061B/en
Publication of SE8405068D0 publication Critical patent/SE8405068D0/en
Priority to GB08426635A priority patent/GB2165888B/en
Priority to FR8416135A priority patent/FR2572140B1/en
Priority to DE3448204A priority patent/DE3448204C2/en
Priority to DE3439218A priority patent/DE3439218A1/en
Publication of SE8405068L publication Critical patent/SE8405068L/en
Publication of SE445061B publication Critical patent/SE445061B/en

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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • 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
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/14—Preswirling

Landscapes

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

Abstract

The fan comprises an impeller 2 and a system for imparting prerotation swirl to the air flow entering the impeller. The swirl system includes a bypass conduit 6 and an adjustable baffle 9. Normally the baffle blocks the inlet 7 of the conduit 6 so that the entire airflow passes through the inlet box 5 and inlet cone 4 to the impeller. When the baffle is swung away from the inlet 7, the air flow is divided into two streams 10, 11, the stream 11 being swirled due to the tangential direction in which the air is supplied from the conduit 6 to the inlet cone 4. <IMAGE>
SE8405068A 1984-10-10 1984-10-10 FLEET WITH DEVICE FOR ROTATING THE AIR FLOW INCOMING SE445061B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8405068A SE445061B (en) 1984-10-10 1984-10-10 FLEET WITH DEVICE FOR ROTATING THE AIR FLOW INCOMING
GB08426635A GB2165888B (en) 1984-10-10 1984-10-22 Fan
FR8416135A FR2572140B1 (en) 1984-10-10 1984-10-22 FAN
DE3448204A DE3448204C2 (en) 1984-10-10 1984-10-26 Fan
DE3439218A DE3439218A1 (en) 1984-10-10 1984-10-26 FAN

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8405068A SE445061B (en) 1984-10-10 1984-10-10 FLEET WITH DEVICE FOR ROTATING THE AIR FLOW INCOMING
GB08426635A GB2165888B (en) 1984-10-10 1984-10-22 Fan
FR8416135A FR2572140B1 (en) 1984-10-10 1984-10-22 FAN
DE3439218A DE3439218A1 (en) 1984-10-10 1984-10-26 FAN

Publications (3)

Publication Number Publication Date
SE8405068D0 SE8405068D0 (en) 1984-10-10
SE8405068L true SE8405068L (en) 1986-04-11
SE445061B SE445061B (en) 1986-05-26

Family

ID=27433221

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8405068A SE445061B (en) 1984-10-10 1984-10-10 FLEET WITH DEVICE FOR ROTATING THE AIR FLOW INCOMING

Country Status (4)

Country Link
DE (1) DE3439218A1 (en)
FR (1) FR2572140B1 (en)
GB (1) GB2165888B (en)
SE (1) SE445061B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224076A (en) * 1988-08-03 1990-04-25 Atomic Energy Authority Uk Controlling pumps
DE9400035U1 (en) * 1994-01-03 1994-03-10 Nkf Leichtmetallbau Blower for a sweeper or suction vehicle
DE19603337C1 (en) * 1996-01-31 1997-08-14 Grundfos As Centrifugal pump with suction and pressure connections on same axis
FR2878914B1 (en) * 2004-12-03 2010-09-03 Inst Francais Du Petrole AIR COMPRESSOR, ESPECIALLY FOR AN INTERNAL COMBUSTION ENGINE, INCLUDING AN ADJUSTED AIR ROTATION CHAMBER
CN106015092A (en) * 2016-07-13 2016-10-12 重庆沃亚机械有限公司 High-efficiency energy-saving fan
CN112253494B (en) * 2020-09-11 2022-04-19 宁波方太厨具有限公司 Fan system, range hood applying fan system and control method of range hood

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB408325A (en) * 1932-10-08 1934-04-09 Robert Ernest Workman Improvements in or relating to rotary fans
GB455512A (en) * 1935-05-29 1936-10-22 Davidson & Co Ltd Improvements in or relating to the control of centrifugal fans, pumps and the like
GB464844A (en) * 1935-10-30 1937-04-26 Davidson & Co Ltd Improvements in or relating to the control of centrifugal fans, pumps and the like
US2336010A (en) * 1942-09-17 1943-12-07 Fairchild Engine & Airplane Supercharger
CH252875A (en) * 1945-07-14 1948-01-31 Sulzer Ag Centrifugal hoist.
DE1204774B (en) * 1954-01-27 1965-11-11 Bruno Eck Dr Ing Radial blower for conveying very dusty gases
US3019963A (en) * 1955-07-08 1962-02-06 Eck Bruno Christian Radial blower for gases with high dust content
US3922108A (en) * 1974-03-18 1975-11-25 Wallace Murray Corp Pre-whirl turbo charger apparatus

Also Published As

Publication number Publication date
FR2572140A1 (en) 1986-04-25
DE3439218C2 (en) 1988-01-14
FR2572140B1 (en) 1987-02-27
GB8426635D0 (en) 1984-11-28
GB2165888B (en) 1988-12-21
SE445061B (en) 1986-05-26
SE8405068D0 (en) 1984-10-10
GB2165888A (en) 1986-04-23
DE3439218A1 (en) 1986-05-07

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