NO20025144D0 - Device for counteracting formation of fluidized vortexes in the fluid surrounding the propeller and / or propeller drive hub region - Google Patents

Device for counteracting formation of fluidized vortexes in the fluid surrounding the propeller and / or propeller drive hub region

Info

Publication number
NO20025144D0
NO20025144D0 NO20025144A NO20025144A NO20025144D0 NO 20025144 D0 NO20025144 D0 NO 20025144D0 NO 20025144 A NO20025144 A NO 20025144A NO 20025144 A NO20025144 A NO 20025144A NO 20025144 D0 NO20025144 D0 NO 20025144D0
Authority
NO
Norway
Prior art keywords
propeller
vortexes
fluidized
drive hub
fluid surrounding
Prior art date
Application number
NO20025144A
Other languages
Norwegian (no)
Other versions
NO20025144L (en
NO336514B1 (en
Inventor
Reinhard Schulze
Original Assignee
Howaldtswerke Deutsche Werft
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 Howaldtswerke Deutsche Werft filed Critical Howaldtswerke Deutsche Werft
Publication of NO20025144D0 publication Critical patent/NO20025144D0/en
Publication of NO20025144L publication Critical patent/NO20025144L/en
Publication of NO336514B1 publication Critical patent/NO336514B1/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
    • B63H1/28—Other means for improving propeller efficiency
    • 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
    • B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation
    • 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
    • B63H1/28—Other means for improving propeller efficiency
    • B63H2001/283—Propeller hub caps with fins having a pitch different from pitch of propeller blades, or a helix hand opposed to the propellers' helix hand

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Lubricants (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Coating Apparatus (AREA)
  • General Details Of Gearings (AREA)

Abstract

The camber on a propeller blade (12) acts in the opposite direction to the camber on the propeller. The propeller blade spreads from a conical transitional part (9) over a cylindrical hub part (10) to again a conical divergent end part (11). The outer end part of the propeller blade is formed by a cylindrical outer casing (13) equaling 10 to 50 percent of the length of the propeller blade's surface area.
NO20025144A 2001-10-26 2002-10-25 Device for counteracting fluid vortex formation in the fluid surrounding the propeller and / or propeller drive hub region NO336514B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10152977A DE10152977C1 (en) 2001-10-26 2001-10-26 Device for counteracting flow vortices generated in the hub area of propellers and / or propeller drives in the surrounding fluid

Publications (3)

Publication Number Publication Date
NO20025144D0 true NO20025144D0 (en) 2002-10-25
NO20025144L NO20025144L (en) 2003-04-28
NO336514B1 NO336514B1 (en) 2015-09-14

Family

ID=7703859

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20025144A NO336514B1 (en) 2001-10-26 2002-10-25 Device for counteracting fluid vortex formation in the fluid surrounding the propeller and / or propeller drive hub region

Country Status (7)

Country Link
EP (1) EP1306301B1 (en)
AT (1) ATE348752T1 (en)
DE (2) DE10152977C1 (en)
DK (1) DK1306301T3 (en)
ES (1) ES2276888T3 (en)
NO (1) NO336514B1 (en)
PT (1) PT1306301E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011055515A1 (en) 2011-11-18 2013-05-23 Becker Marine Systems Gmbh & Co. Kg Propeller arrangement, in particular for watercraft
CN103803040A (en) * 2014-01-24 2014-05-21 中国船舶重工集团公司第七○二研究所 Propeller hub vortex eliminating wheel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212586A (en) * 1978-12-19 1980-07-15 Aguiar Mervyn F Turboexhaust hub extension for a marine propeller
DE3037369A1 (en) * 1980-09-01 1982-03-11 Escher Wyss Gmbh, 7980 Ravensburg Low drive marine screw - has set of vanes around rear end of hub smoothing water flow
CA1289821C (en) * 1986-07-31 1991-10-01 Michihito Ogura Screw propeller boss cap with fins
EP0758606A1 (en) * 1995-08-16 1997-02-19 Schottel-Werft Josef Becker GmbH & Co KG. Hub cap for ship propellers
US6244912B1 (en) * 2000-03-20 2001-06-12 Electric Boat Corporation Strut-mounted marine propulsion unit

Also Published As

Publication number Publication date
ATE348752T1 (en) 2007-01-15
DE10152977C1 (en) 2003-05-08
EP1306301B1 (en) 2006-12-20
NO20025144L (en) 2003-04-28
DE50208997D1 (en) 2007-02-01
NO336514B1 (en) 2015-09-14
ES2276888T3 (en) 2007-07-01
DK1306301T3 (en) 2007-04-10
PT1306301E (en) 2007-02-28
EP1306301A1 (en) 2003-05-02

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: THYSSENKRUPP MARINE SYSTEMS GMBH, DE

MM1K Lapsed by not paying the annual fees