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 boatsInfo
- 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
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)
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)
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 |
-
1950
- 1950-06-19 FR FR1020502D patent/FR1020502A/en not_active Expired
Cited By (11)
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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