IT1011656B - Dispositivo per ridurre le diffe renze di velocita del flusso attra verso l area del disco di un elica navale - Google Patents
Dispositivo per ridurre le diffe renze di velocita del flusso attra verso l area del disco di un elica navaleInfo
- Publication number
- IT1011656B IT1011656B IT68014/74A IT6801474A IT1011656B IT 1011656 B IT1011656 B IT 1011656B IT 68014/74 A IT68014/74 A IT 68014/74A IT 6801474 A IT6801474 A IT 6801474A IT 1011656 B IT1011656 B IT 1011656B
- Authority
- IT
- Italy
- Prior art keywords
- reduce
- flow
- disk area
- speed differences
- naval
- Prior art date
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Control Of Turbines (AREA)
- Hydraulic Turbines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7305021A SE377919B (it) | 1973-04-10 | 1973-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1011656B true IT1011656B (it) | 1977-02-10 |
Family
ID=20317163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT68014/74A IT1011656B (it) | 1973-04-10 | 1974-03-29 | Dispositivo per ridurre le diffe renze di velocita del flusso attra verso l area del disco di un elica navale |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5012789A (it) |
DE (1) | DE2416562A1 (it) |
ES (1) | ES425136A1 (it) |
FR (1) | FR2225330B1 (it) |
IT (1) | IT1011656B (it) |
NL (1) | NL7404215A (it) |
SE (1) | SE377919B (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57147983A (en) * | 1981-03-11 | 1982-09-13 | Mitsubishi Heavy Ind Ltd | Control device of stern current field |
GB2103016B (en) * | 1981-07-21 | 1985-07-10 | Standard Telephones Cables Ltd | Temperature sensitive capsules |
JPS5881895A (ja) * | 1981-11-10 | 1983-05-17 | Mitsubishi Heavy Ind Ltd | 船尾流場制御装置 |
JPS61104299U (it) * | 1984-12-15 | 1986-07-02 | ||
JPH0646796Y2 (ja) * | 1985-02-06 | 1994-11-30 | 日立造船株式会社 | 船尾流れ改良装置 |
FI74920C (fi) * | 1985-10-25 | 1989-04-10 | Rauma Repola Oy | Foerfarande och system foer att minska rotationsmotstaondet i propeller. |
FI82653C (fi) * | 1987-04-24 | 1991-04-10 | Antti Kalevi Henrik Jaervi | Foerfarande och anordningar foer avlaegsnande av is fraon raenna. |
IT1216545B (it) * | 1988-04-05 | 1990-03-08 | Fabio Buzzi | Dispositivo ad effetto cavitazionale per eliche di natanti con carena planante o semiplanante. |
CN104015906A (zh) * | 2014-06-09 | 2014-09-03 | 王东武 | 一种能降低螺旋桨空泡噪声和提高螺旋桨效率的方法 |
-
1973
- 1973-04-10 SE SE7305021A patent/SE377919B/xx unknown
-
1974
- 1974-03-28 NL NL7404215A patent/NL7404215A/xx unknown
- 1974-03-29 IT IT68014/74A patent/IT1011656B/it active
- 1974-04-05 DE DE2416562A patent/DE2416562A1/de active Pending
- 1974-04-09 ES ES425136A patent/ES425136A1/es not_active Expired
- 1974-04-09 JP JP49040399A patent/JPS5012789A/ja active Pending
- 1974-04-10 FR FR7412633A patent/FR2225330B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2225330B1 (it) | 1976-06-25 |
SE377919B (it) | 1975-08-04 |
ES425136A1 (es) | 1976-07-01 |
DE2416562A1 (de) | 1974-11-07 |
FR2225330A1 (it) | 1974-11-08 |
JPS5012789A (it) | 1975-02-10 |
NL7404215A (it) | 1974-10-14 |
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