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2 710 142

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(51)

IPC

B63H1/15(2006-01-01)

B63H1/16(2006-01-01)

(21) (22)

Application

2019117005, 2019-05-31

(24)

Start date

2019-05-31

(22)

Actual filing date

2019-05-31

(45)

Published

2019-12-24

(72)

Inventor

Grushetskij Igor ViktorovichSavenko Valentin ViktorovichShlemov Yurij FedorovichPetrov Aleksandr AleksandrovichMalinin Ivan OlegovichYakovleva Elena VladimirovnaSmolnikov Vasilij YurevichDobrynin Dmitrij Gennadevich

(73)

Holder

Rossijskaya Federatsiya, Ot Imeni Kotoroj Vystupaet Ministerstvo Promyshlennosti I Torgovli Rossijskoj Federatsii

LOW NOISE SCREW PROPELLER Russian patent published in 2019 - IPC B63H1/15 B63H1/16

Abstract RU 2710142 C1

FIELD: shipbuilding.

SUBSTANCE: invention relates to shipbuilding, particularly, to propeller screws with reduced vibration and emitted noise levels. Low-noise screw propeller includes resonant damping devices. Hub of screw propeller is extended to stern from end of propeller shaft, and blades are fixed on outer surface of hub section formed as a result of elongation. On the inner surface of this section, in the cavity of the hub, a set of resonant damping devices is placed.

EFFECT: reduced vibration and sound emission of propeller screw at resonance frequencies.

9 cl, 6 dwg

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RU 2 710 142 C1

Authors

Grushetskij Igor Viktorovich

Savenko Valentin Viktorovich

Shlemov Yurij Fedorovich

Petrov Aleksandr Aleksandrovich

Malinin Ivan Olegovich

Yakovleva Elena Vladimirovna

Smolnikov Vasilij Yurevich

Dobrynin Dmitrij Gennadevich

Dates

2019-12-24—Published

2019-05-31—Filed