FIELD: shipbuilding.
SUBSTANCE: invention relates to ship rotor masts. The rotor mast has a boss joined to blades which have a profile, formed by intersection of two parabolas, mated in the region of the rear edge with a semicircle, which enters the boss. The front edge is rounded. The end of the blade is bent at an angle β≥30°. In the blade near the boss, there are ventilation openings. Lateral sides of the blades are closed by a ring.
EFFECT: invention seeks to increase thrust and reduce noise and suppress cavitation.
2 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROPELLER | 2006 |
|
RU2314968C1 |
| PROPELLER BLADE | 2004 |
|
RU2278058C2 |
| HELICOPTER | 2006 |
|
RU2309873C1 |
| AIRCRAFT | 2005 |
|
RU2307048C1 |
| AXIAL-BLOW BLOWER | 2007 |
|
RU2362911C2 |
| AIR PROPELLER | 2006 |
|
RU2318698C1 |
| HELICOPTER | 2006 |
|
RU2333867C2 |
| ROTOR WIND ELECTRIC ASSEMBLY | 2006 |
|
RU2325552C1 |
| OAR | 2008 |
|
RU2373105C1 |
| PROPELLER | 2001 |
|
RU2228878C2 |
