FR1020502A - Device for improving the propulsion efficiency of propellers, in particular for boats - Google Patents

Device for improving the propulsion efficiency of propellers, in particular for boats

Info

Publication number
FR1020502A
FR1020502A FR1020502DA FR1020502A FR 1020502 A FR1020502 A FR 1020502A FR 1020502D A FR1020502D A FR 1020502DA FR 1020502 A FR1020502 A FR 1020502A
Authority
FR
France
Prior art keywords
propellers
boats
improving
propulsion efficiency
propulsion
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
Application number
Other languages
French (fr)
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.)
FORGES CHANTIERS MEDITERRANEE
Original Assignee
FORGES CHANTIERS MEDITERRANEE
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 FORGES CHANTIERS MEDITERRANEE filed Critical FORGES CHANTIERS MEDITERRANEE
Application granted granted Critical
Publication of FR1020502A publication Critical patent/FR1020502A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • B63H2025/388—Rudders with varying angle of attack over the height of the rudder blade, e.g. twisted rudders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
FR1020502D 1950-06-19 1950-06-19 Device for improving the propulsion efficiency of propellers, in particular for boats Expired FR1020502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1020502T 1950-06-19

Publications (1)

Publication Number Publication Date
FR1020502A true FR1020502A (en) 1953-02-06

Family

ID=9576366

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1020502D Expired FR1020502A (en) 1950-06-19 1950-06-19 Device for improving the propulsion efficiency of propellers, in particular for boats

Country Status (1)

Country Link
FR (1) FR1020502A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028457B (en) * 1954-05-05 1958-04-17 Leo Costa Dr Screw drive for ships with a pear-shaped displacement body
DE971179C (en) * 1953-03-19 1958-12-18 Pleuger & Co Main propeller with dunnage
DE1051153B (en) * 1956-05-25 1959-02-19 Dr Leo Costa Pear-shaped displacement body arranged axially behind a ship's propeller
DE1120310B (en) * 1956-03-19 1961-12-21 Eta Corp G M B H Guide body for propellers
EP1921005A1 (en) * 2006-11-13 2008-05-14 Becker Marine Systems GmbH & Co. KG Rudder for ships
CN109070981A (en) * 2016-04-28 2018-12-21 日本日联海洋株式会社 The propulsion device of multiple screw ship

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971179C (en) * 1953-03-19 1958-12-18 Pleuger & Co Main propeller with dunnage
DE1028457B (en) * 1954-05-05 1958-04-17 Leo Costa Dr Screw drive for ships with a pear-shaped displacement body
DE1120310B (en) * 1956-03-19 1961-12-21 Eta Corp G M B H Guide body for propellers
DE1051153B (en) * 1956-05-25 1959-02-19 Dr Leo Costa Pear-shaped displacement body arranged axially behind a ship's propeller
EP1921005A1 (en) * 2006-11-13 2008-05-14 Becker Marine Systems GmbH & Co. KG Rudder for ships
KR100895379B1 (en) * 2006-11-13 2009-04-29 베커 마린 시스템즈 게엠베하 운트 콤파니 카게 Rudder for ships
CN101181930B (en) * 2006-11-13 2011-05-25 贝克船舶***有限及两合公司 Ship helm
NO337821B1 (en) * 2006-11-13 2016-06-27 Becker Marine Sys Gmbh & Co Kg Rudder for ships
CN109070981A (en) * 2016-04-28 2018-12-21 日本日联海洋株式会社 The propulsion device of multiple screw ship
EP3450299A4 (en) * 2016-04-28 2019-11-06 Japan Marine United Corporation Propulsion device for multi-shaft ship
CN109070981B (en) * 2016-04-28 2021-07-13 日本日联海洋株式会社 Propulsion unit for multi-shaft ship

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