FIELD: transport.
SUBSTANCE: invention relates to ship building and pertains to noiseless screw propellers. Screw propeller, driven by engine, comprises hub and multiple blades extending beyond the hub, each having first side edge and second side edge, first blade inclination angle relative to line F running along blade perpendicular to screw axis and making 0-4 degrees. Note that first side edge gradually becomes a bit thinner in direction from the hub to blade end. In compliance with second version, blade has diagonal line formed by intersection of first side edge with bending line, while inclined rear surface rises to diagonal line to second side edge.
EFFECT: no cavitation at high screw rpm.
6 cl, 26 dwg
| Title |
Year |
Author |
Number |
| PLANETARY ROLLER MILL FOR PROCESSING OF HIGH-HUMID CHARGE MATERIAL |
2017 |
- Chen, Michael, M.
- Chen, Jianrong
- Hoag, James, R.
- Podmokly, David, M.
|
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| PUMPING DEVICE AND CONTAINING IT AN OUTDOOR AIR CONDITIONER UNIT |
2014 |
- Nakagawa, Masaru
- Sato, Seiji
|
RU2680896C1 |
| MULTIPURPOSE ROTOR DEVICE (VERSIONS) AND GENERATION SYSTEM COMPRISING SUCH DEVICE |
2012 |
|
RU2580193C2 |
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2014 |
- Nakagava Masaru
- Sato Sejdzi
|
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| PROPULSIVE TORPEDO COMPLEX, METHOD FOR OPERATION AND VARIANTS OF A PROPULSOR |
2020 |
- Paletskikh Vladimir Mikhajlovich
|
RU2757339C1 |
| HYDRODYNAMIC CHANNELLING NOZZLE FOR CONTROLLING FLOW ON SHIP BOW |
2012 |
- Petromanolakis E. Emmanyuel
- Petromanolaki E. Kalomoira
- Petromanolakis E. Evagelos
|
RU2597430C2 |
| GERMOV PROPELLER SCREW |
2017 |
|
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| MARINE PROPELLER |
1995 |
- Shishkov Valerij Mikhajlovich
|
RU2106283C1 |
| PACKING BOX |
2005 |
- Tomasov Sergej Mikhajlovich
|
RU2299163C2 |
| LOW-NOISE AND HIGH-EFFICIENCY BLADE FOR AXIAL FANS AND ROTORS AND AXIAL FAN OR ROTOR CONTAINING SAID BLADE |
2016 |
- Mosiewicz Roberto Eduardo
|
RU2721214C2 |
