FI751077A - - Google Patents
Info
- Publication number
- FI751077A FI751077A FI751077A FI751077A FI751077A FI 751077 A FI751077 A FI 751077A FI 751077 A FI751077 A FI 751077A FI 751077 A FI751077 A FI 751077A FI 751077 A FI751077 A FI 751077A
- Authority
- FI
- Finland
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
- B63H1/26—Blades
-
- 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
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)
- Hydraulic Turbines (AREA)
- Earth Drilling (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/460,289 US3972646A (en) | 1974-04-12 | 1974-04-12 | Propeller blade structures and methods particularly adapted for marine ducted reversible thrusters and the like for minimizing cavitation and related noise |
Publications (1)
Publication Number | Publication Date |
---|---|
FI751077A true FI751077A (fi) | 1975-10-13 |
Family
ID=23828100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI751077A FI751077A (fi) | 1974-04-12 | 1975-04-10 |
Country Status (14)
Country | Link |
---|---|
US (1) | US3972646A (fi) |
JP (1) | JPS514792A (fi) |
AU (1) | AU500970B2 (fi) |
BR (1) | BR7502226A (fi) |
DE (1) | DE2515560C3 (fi) |
DK (1) | DK158775A (fi) |
FI (1) | FI751077A (fi) |
FR (1) | FR2267236B1 (fi) |
GB (1) | GB1509996A (fi) |
IE (1) | IE41885B1 (fi) |
IT (1) | IT1035286B (fi) |
NL (1) | NL7504297A (fi) |
NO (1) | NO140531C (fi) |
SE (1) | SE426308B (fi) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4012172A (en) * | 1975-09-10 | 1977-03-15 | Avco Corporation | Low noise blades for axial flow compressors |
US4131387A (en) * | 1976-02-27 | 1978-12-26 | General Electric Company | Curved blade turbomachinery noise reduction |
US4358246A (en) * | 1979-07-16 | 1982-11-09 | United Technologies Corporation | Noise reduction means for prop-fan and the construction thereof |
US4370097A (en) * | 1979-07-16 | 1983-01-25 | United Technologies Corporation | Noise reduction means for prop-fan |
US4358245A (en) * | 1980-09-18 | 1982-11-09 | Bolt Beranek And Newman Inc. | Low noise fan |
US4569631A (en) * | 1984-08-06 | 1986-02-11 | Airflow Research And Manufacturing Corp. | High strength fan |
FR2605588B1 (fr) * | 1986-10-24 | 1989-04-28 | Onera (Off Nat Aerospatiale) | Perfectionnements apportes aux helices aeriennes, notamment pour propulseurs d'aeronef |
JPH0660638B2 (ja) * | 1987-10-07 | 1994-08-10 | 松下電器産業株式会社 | 斜流羽根車 |
JPH01307631A (ja) * | 1988-06-06 | 1989-12-12 | Hitachi Ltd | 高温用容量型圧力計 |
US4930990A (en) * | 1989-09-15 | 1990-06-05 | Siemens-Bendix Automotive Electronics Limited | Quiet clutch fan blade |
US5064345A (en) * | 1989-11-16 | 1991-11-12 | Airflow Research And Manufacturing Corporation | Multi-sweep blade with abrupt sweep transition |
CA2020765C (en) * | 1990-07-09 | 2000-02-22 | Hung Do | Propeller blade configuration |
GB9022281D0 (en) * | 1990-10-13 | 1991-02-20 | Westland Helicopters | Helicopter rotor blades |
US5192193A (en) * | 1991-06-21 | 1993-03-09 | Ingersoll-Dresser Pump Company | Impeller for centrifugal pumps |
DE69228189T2 (de) * | 1991-08-30 | 1999-06-17 | Airflow Research & Mfg. Corp., Watertown, Mass. | Ventilator mit vorwärtsgekrümmten schaufeln und angepasster schaufelkrümmung und -anstellung |
US5489186A (en) * | 1991-08-30 | 1996-02-06 | Airflow Research And Manufacturing Corp. | Housing with recirculation control for use with banded axial-flow fans |
US5584661A (en) * | 1994-05-02 | 1996-12-17 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Forward sweep, low noise rotor blade |
EP1107906B1 (de) * | 1998-09-04 | 2003-08-27 | Manfred Meincke | Vorrichtung zum antrieb eines bootes |
US6135831A (en) * | 1999-10-22 | 2000-10-24 | Bird-Johnson Company | Impeller for marine waterjet propulsion apparatus |
US6340290B1 (en) | 2000-06-20 | 2002-01-22 | Brunswick Corporation | Controllable pitch propeller with a fail safe increased pitch movement |
GB2426297B (en) * | 2004-03-18 | 2008-10-08 | Frank Daniel Lotrionte | Turbine / rotor |
EP1801422B1 (de) * | 2005-12-22 | 2013-06-12 | Ziehl-Abegg AG | Ventilator und Ventilatorflügel |
FR2908152B1 (fr) * | 2006-11-08 | 2009-02-06 | Snecma Sa | Aube en fleche de turbomachine |
US20100000461A1 (en) * | 2008-07-07 | 2010-01-07 | Waite Arthur G | Foil shapes for use in barge skegs and marine propeller shrouds |
JP5675264B2 (ja) * | 2010-10-19 | 2015-02-25 | 三菱重工業株式会社 | 船舶及び推進装置 |
US8998582B2 (en) | 2010-11-15 | 2015-04-07 | Sundyne, Llc | Flow vector control for high speed centrifugal pumps |
US20130259693A1 (en) * | 2012-04-03 | 2013-10-03 | Yih-Wei Tzeng | Ship propeller |
CN104755703B (zh) * | 2012-10-23 | 2017-10-27 | 通用电气公司 | 无涵道的推力产生*** |
US9217332B2 (en) * | 2012-11-05 | 2015-12-22 | Mohammad Ismail Abbassi Shakibapour | Uni-directional axial turbine blade assembly |
PL3377775T3 (pl) * | 2015-11-16 | 2022-09-19 | R.E.M. Holding S.R.L. | Przemysłowy wentylator osiowy z łopatami o niskim poziomie hałasu i dużej wydajności |
US20220307520A1 (en) * | 2015-11-16 | 2022-09-29 | R.E.M. Holding S.R.L. | Low noise and high efficiency blade for axial fans and rotors and axial fan or rotor comprising said blade |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1088883A (en) * | 1913-05-20 | 1914-03-03 | Emil Imle | Screw-blade for impellers. |
NL20110C (fi) * | 1924-01-22 | |||
US1882164A (en) * | 1931-05-08 | 1932-10-11 | Charles H A F L Ross | Fluid reactive surface |
US2582559A (en) * | 1947-04-14 | 1952-01-15 | Elmer O Pearson | Variable pitch propeller |
SE332579B (fi) * | 1970-04-10 | 1971-02-08 | Karlstad Mekaniska Ab |
-
1974
- 1974-04-12 US US05/460,289 patent/US3972646A/en not_active Expired - Lifetime
-
1975
- 1975-03-21 SE SE7503266A patent/SE426308B/xx not_active IP Right Cessation
- 1975-04-07 NO NO751181A patent/NO140531C/no unknown
- 1975-04-10 DE DE2515560A patent/DE2515560C3/de not_active Expired
- 1975-04-10 AU AU80021/75A patent/AU500970B2/en not_active Expired
- 1975-04-10 NL NL7504297A patent/NL7504297A/xx not_active Application Discontinuation
- 1975-04-10 FI FI751077A patent/FI751077A/fi not_active Application Discontinuation
- 1975-04-11 DK DK158775A patent/DK158775A/da not_active IP Right Cessation
- 1975-04-11 BR BR2832/75A patent/BR7502226A/pt unknown
- 1975-04-11 GB GB14983/75A patent/GB1509996A/en not_active Expired
- 1975-04-11 JP JP50044143A patent/JPS514792A/ja active Pending
- 1975-04-11 FR FR7511460A patent/FR2267236B1/fr not_active Expired
- 1975-04-11 IE IE837/75A patent/IE41885B1/en unknown
- 1975-04-14 IT IT49066/75A patent/IT1035286B/it active
Also Published As
Publication number | Publication date |
---|---|
NL7504297A (nl) | 1975-10-14 |
AU8002175A (en) | 1976-10-14 |
DK158775A (fi) | 1975-10-13 |
DE2515560A1 (de) | 1975-10-23 |
BR7502226A (pt) | 1976-02-10 |
IE41885B1 (en) | 1980-04-23 |
JPS514792A (en) | 1976-01-16 |
US3972646A (en) | 1976-08-03 |
FR2267236A1 (fi) | 1975-11-07 |
NO751181L (fi) | 1975-10-14 |
NO140531B (no) | 1979-06-11 |
IE41885L (en) | 1975-10-12 |
SE426308B (sv) | 1982-12-27 |
SE7503266L (sv) | 1975-10-13 |
AU500970B2 (en) | 1979-06-07 |
IT1035286B (it) | 1979-10-20 |
DE2515560B2 (fi) | 1979-01-25 |
NO140531C (no) | 1979-09-19 |
FR2267236B1 (fi) | 1980-07-18 |
GB1509996A (en) | 1978-05-10 |
DE2515560C3 (de) | 1979-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |
Owner name: BOLT BERANEK AND NEWMAN, INC. |