DK1306301T3 - Apparatus for counteracting fluid invertebrates - Google Patents

Apparatus for counteracting fluid invertebrates

Info

Publication number
DK1306301T3
DK1306301T3 DK02090313T DK02090313T DK1306301T3 DK 1306301 T3 DK1306301 T3 DK 1306301T3 DK 02090313 T DK02090313 T DK 02090313T DK 02090313 T DK02090313 T DK 02090313T DK 1306301 T3 DK1306301 T3 DK 1306301T3
Authority
DK
Denmark
Prior art keywords
propeller blade
invertebrates
camber
propeller
counteracting fluid
Prior art date
Application number
DK02090313T
Other languages
Danish (da)
Inventor
Reinhard Dr Habil 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
Application granted granted Critical
Publication of DK1306301T3 publication Critical patent/DK1306301T3/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

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.
DK02090313T 2001-10-26 2002-09-04 Apparatus for counteracting fluid invertebrates DK1306301T3 (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 (1)

Publication Number Publication Date
DK1306301T3 true DK1306301T3 (en) 2007-04-10

Family

ID=7703859

Family Applications (1)

Application Number Title Priority Date Filing Date
DK02090313T DK1306301T3 (en) 2001-10-26 2002-09-04 Apparatus for counteracting fluid invertebrates

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
EP0255136A1 (en) * 1986-07-31 1988-02-03 Mitsui O.S.K. Lines, Ltd. A 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
ES2276888T3 (en) 2007-07-01
EP1306301B1 (en) 2006-12-20
DE50208997D1 (en) 2007-02-01
NO20025144D0 (en) 2002-10-25
NO20025144L (en) 2003-04-28
ATE348752T1 (en) 2007-01-15
EP1306301A1 (en) 2003-05-02
PT1306301E (en) 2007-02-28
NO336514B1 (en) 2015-09-14
DE10152977C1 (en) 2003-05-08

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