DE50208997D1 - Device for counteracting flow vortices generated in the hub area of propellers and / or propeller drives in the surrounding fluid - Google Patents

Device for counteracting flow vortices generated in the hub area of propellers and / or propeller drives in the surrounding fluid

Info

Publication number
DE50208997D1
DE50208997D1 DE50208997T DE50208997T DE50208997D1 DE 50208997 D1 DE50208997 D1 DE 50208997D1 DE 50208997 T DE50208997 T DE 50208997T DE 50208997 T DE50208997 T DE 50208997T DE 50208997 D1 DE50208997 D1 DE 50208997D1
Authority
DE
Germany
Prior art keywords
propellers
surrounding fluid
hub area
vortices generated
propeller drives
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE50208997T
Other languages
German (de)
Inventor
Dr Habil Schulze
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Marine Systems GmbH
Original Assignee
Howaldtswerke Deutsche Werft GmbH
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 GmbH filed Critical Howaldtswerke Deutsche Werft GmbH
Priority to DE50208997T priority Critical patent/DE50208997D1/en
Application granted granted Critical
Publication of DE50208997D1 publication Critical patent/DE50208997D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Coating Apparatus (AREA)
  • General Details Of Gearings (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (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.
DE50208997T 2001-10-26 2002-09-04 Device for counteracting flow vortices generated in the hub area of propellers and / or propeller drives in the surrounding fluid Expired - Lifetime DE50208997D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50208997T DE50208997D1 (en) 2001-10-26 2002-09-04 Device for counteracting flow vortices generated in the hub area of propellers and / or propeller drives in the surrounding fluid

Applications Claiming Priority (2)

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
DE50208997T DE50208997D1 (en) 2001-10-26 2002-09-04 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
DE50208997D1 true DE50208997D1 (en) 2007-02-01

Family

ID=7703859

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10152977A Expired - Lifetime 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
DE50208997T Expired - Lifetime DE50208997D1 (en) 2001-10-26 2002-09-04 Device for counteracting flow vortices generated in the hub area of propellers and / or propeller drives in the surrounding fluid

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10152977A Expired - Lifetime 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

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
AU593670B2 (en) * 1986-07-31 1990-02-15 Mikado Propeller Co., 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
NO20025144L (en) 2003-04-28
PT1306301E (en) 2007-02-28
ES2276888T3 (en) 2007-07-01
NO336514B1 (en) 2015-09-14
NO20025144D0 (en) 2002-10-25
DK1306301T3 (en) 2007-04-10
EP1306301A1 (en) 2003-05-02
ATE348752T1 (en) 2007-01-15
EP1306301B1 (en) 2006-12-20
DE10152977C1 (en) 2003-05-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition