发明名称 |
ICEBREAKER PROPELLER SCREW BLADE |
摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to ship building, particularly, to icebreaker screw propeller blades incorporated with rudder propellers. Icebreaker propeller screw blade features smooth curvilinear surface and bulge in the area of leading edge. Said bulge is located within 0.35-0.85 of propeller screw radius. Blade profile depth at 0.025 of profile chord length from said leading edge makes 0.25-0.47 of the profile maximum depth. At said distance from leading edge, profile relative depth increases as spacing from propeller screw rotational axis increases. Blade profile depth at 0.05 of profile chord length from said leading edge makes 0.3-0.75 of the profile maximum depth. Blade profile depth at 0.75 of profile chord length from said leading edge makes 0.6-0.7 of the profile maximum depth.EFFECT: higher efficiency in ice conditions.2 dwg |
申请公布号 |
RU2540684(C1) |
申请公布日期 |
2015.02.10 |
申请号 |
RU20130132877 |
申请日期 |
2013.07.17 |
申请人 |
ROSSIJSKAJA FEDERATSIJA, OT IMENI KOTOROJ VYSTUPAET MINISTERSTVO PROMYSHLENNOSTI I TORGOVLI ROSSIJSKOJ FEDERATSII |
发明人 |
BAGAEV DMITRIJ VLADIMIROVICH;RUDNICHENKO ALEKSEJ ANDREEVICH;CHALOV SERGEJ ANDREEVICH |
分类号 |
B63H1/08;B63H1/18 |
主分类号 |
B63H1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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