SE8206578L - VESSEL PROPELLERS WITH AT LEAST TWO PERFORED SHEETS - Google Patents

VESSEL PROPELLERS WITH AT LEAST TWO PERFORED SHEETS

Info

Publication number
SE8206578L
SE8206578L SE8206578A SE8206578A SE8206578L SE 8206578 L SE8206578 L SE 8206578L SE 8206578 A SE8206578 A SE 8206578A SE 8206578 A SE8206578 A SE 8206578A SE 8206578 L SE8206578 L SE 8206578L
Authority
SE
Sweden
Prior art keywords
propellor
perfored
sheets
perforations
hub
Prior art date
Application number
SE8206578A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8206578D0 (en
Inventor
G H Vos
Original Assignee
Noordvos Schroeven Bv
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 Noordvos Schroeven Bv filed Critical Noordvos Schroeven Bv
Publication of SE8206578D0 publication Critical patent/SE8206578D0/en
Publication of SE8206578L publication Critical patent/SE8206578L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust propellers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Microbiology (AREA)
  • Organic Chemistry (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Combustion & Propulsion (AREA)
  • Hydrology & Water Resources (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Catching Or Destruction (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Screw Conveyors (AREA)
  • Wind Motors (AREA)

Abstract

Each blade 1 has perforations 2 on the lee side thereof and is connected via a passage 4 through the hub 3 with the thrust side of the propellor. This arrangement, which during rotation of the propellor causes water to flow from the thrust side of the propellor via the passage in the hub to the hollow space in the corresponding blade and thence via the perforations to the region at the lee side of the propellor, has been found to improve the propellor's efficiency in operation in a ship's propulsion mechanism. <IMAGE>
SE8206578A 1981-11-20 1982-11-18 VESSEL PROPELLERS WITH AT LEAST TWO PERFORED SHEETS SE8206578L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8105275A NL8105275A (en) 1981-11-20 1981-11-20 SHIP SCREW, PROVIDED WITH TWO OR MORE PERFORATED HOLLOW BLADES.

Publications (2)

Publication Number Publication Date
SE8206578D0 SE8206578D0 (en) 1982-11-18
SE8206578L true SE8206578L (en) 1983-05-21

Family

ID=19838424

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8206578A SE8206578L (en) 1981-11-20 1982-11-18 VESSEL PROPELLERS WITH AT LEAST TWO PERFORED SHEETS

Country Status (14)

Country Link
BE (1) BE895081A (en)
DE (1) DE3242589A1 (en)
DK (1) DK508982A (en)
ES (1) ES275637Y (en)
FI (1) FI823935L (en)
FR (1) FR2516890A1 (en)
GB (1) GB2110307B (en)
GR (1) GR76737B (en)
IE (1) IE53509B1 (en)
IT (1) IT1153059B (en)
NL (1) NL8105275A (en)
NO (1) NO823840L (en)
PT (1) PT75872B (en)
SE (1) SE8206578L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU708767C (en) * 1997-04-14 2002-08-29 Chi Keung Leung Improved fluid displacing blade
AUPO620197A0 (en) * 1997-04-14 1997-05-08 Leung, Chi Keung Extra byte propeller
WO2003013954A1 (en) * 2001-08-08 2003-02-20 Robin David Shaw Cavitation alleviation and line cutting device
GB0222466D0 (en) 2002-09-27 2002-11-06 Marine Current Turbines Ltd Improvements in rotor blades and/or hydrofoils
GB0617828D0 (en) 2006-09-11 2006-10-18 Ambassador Marine Ltd Line cutter
AU2006233263B2 (en) * 2006-10-02 2012-05-03 Aon Invent Llc Safety propeller
RU2539870C1 (en) * 2013-09-30 2015-01-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) Propeller screw
CN105221321A (en) * 2014-06-25 2016-01-06 上海电气风电设备有限公司 The open blade structure of ocean current power generation unit inner chamber

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17146C (en) * FR. WREDE in Duisburg, Crefelderstr. 20 Ship propellers with hollow wings, the cavity of which communicates with the surrounding water
GB191206468A (en) * 1912-03-15 1912-05-23 Wynford Brierley Improvements in Propellers and Fans.
US1604994A (en) * 1925-08-31 1926-11-02 Patrick P Grosso Propeller
US1666517A (en) * 1927-01-25 1928-04-17 Tully Edward Ernest Propelling device for ships
GB291281A (en) * 1927-10-29 1928-05-31 William Lovis Improvements in or relating to ships' propellers
GB400913A (en) * 1932-01-29 1933-11-02 Louis Jauch Improvements in hydraulic or aerial propellers or receivers
GB396716A (en) * 1932-02-08 1933-08-08 Edward Ernest Tully Improvements in or relating to ships' propellers
US2511156A (en) * 1946-08-07 1950-06-13 Richard J Glass Propeller
GB1200162A (en) * 1966-05-24 1970-07-29 Robert Filmer Bridgland Improvements in blades for screw-propellers and lifting rotors
NL7803906A (en) * 1978-04-12 1979-10-16 Noordvos Schroeven Bv METHOD, DEVICE AND PROPELLER FOR DISTRIBUTING A GAS, POWDER OR LIQUID MATERIAL IN A LIQUID.

Also Published As

Publication number Publication date
FI823935A0 (en) 1982-11-17
FI823935L (en) 1983-05-21
DE3242589A1 (en) 1983-05-26
GB2110307A (en) 1983-06-15
FR2516890A1 (en) 1983-05-27
BE895081A (en) 1983-05-24
ES275637Y (en) 1984-10-01
NL8105275A (en) 1983-06-16
PT75872A (en) 1982-12-01
PT75872B (en) 1985-01-09
IT8224301A0 (en) 1982-11-17
IT1153059B (en) 1987-01-14
IE53509B1 (en) 1988-11-23
IE822759L (en) 1983-05-20
ES275637U (en) 1984-03-01
GR76737B (en) 1984-08-30
SE8206578D0 (en) 1982-11-18
GB2110307B (en) 1985-01-30
NO823840L (en) 1983-05-24
DK508982A (en) 1983-05-21
IT8224301A1 (en) 1984-05-17

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