PT75872A - Ship's propellor having two or more perforated hollow blades - Google Patents

Ship's propellor having two or more perforated hollow blades

Info

Publication number
PT75872A
PT75872A PT7587282A PT7587282A PT75872A PT 75872 A PT75872 A PT 75872A PT 7587282 A PT7587282 A PT 7587282A PT 7587282 A PT7587282 A PT 7587282A PT 75872 A PT75872 A PT 75872A
Authority
PT
Portugal
Prior art keywords
propellor
ship
perforated hollow
hollow blades
blades
Prior art date
Application number
PT7587282A
Other languages
Portuguese (pt)
Other versions
PT75872B (en
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 PT75872A publication Critical patent/PT75872A/en
Publication of PT75872B publication Critical patent/PT75872B/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)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Screw Conveyors (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Wind Motors (AREA)
PT7587282A 1981-11-20 1982-11-19 Ship's propellor having two or more perforated hollow blades PT75872B (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
PT75872A true PT75872A (en) 1982-12-01
PT75872B PT75872B (en) 1985-01-09

Family

ID=19838424

Family Applications (1)

Application Number Title Priority Date Filing Date
PT7587282A PT75872B (en) 1981-11-20 1982-11-19 Ship's propellor having two or more perforated hollow blades

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
AU2002355362B2 (en) * 2001-08-08 2005-02-03 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
IT8224301A1 (en) 1984-05-17
SE8206578D0 (en) 1982-11-18
IE822759L (en) 1983-05-20
FR2516890A1 (en) 1983-05-27
SE8206578L (en) 1983-05-21
FI823935L (en) 1983-05-21
IT8224301A0 (en) 1982-11-17
ES275637Y (en) 1984-10-01
PT75872B (en) 1985-01-09
GR76737B (en) 1984-08-30
GB2110307B (en) 1985-01-30
DK508982A (en) 1983-05-21
ES275637U (en) 1984-03-01
BE895081A (en) 1983-05-24
NO823840L (en) 1983-05-24
GB2110307A (en) 1983-06-15
DE3242589A1 (en) 1983-05-26
FI823935A0 (en) 1982-11-17
IT1153059B (en) 1987-01-14
IE53509B1 (en) 1988-11-23
NL8105275A (en) 1983-06-16

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