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(19)

(11)

2 369 520

(13)

(51)

IPC

B63H1/14(2006-01-01)

B63H1/28(2006-01-01)

B63H3/00(2006-01-01)

(21) (22)

Application

2007145001/11, 2007-12-03

(24)

Start date

2007-12-03

(22)

Actual filing date

2007-12-03

(45)

Published

2009-10-10

(72)

Inventor

Vishnevskij Leonid IosifovichMavljudov Marat AbdrakhmanovichPashin Valentin MikhajlovichPustoshnyj Aleksandr VladimirovichSalazkin Igor' ViktorovichKil'Deev Ravil' Ismailovich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Imeni Akademika A.N. Krylova" Im. Akad. A.N. Krylova")

LOW-RPM PROPELLER SCREW Russian patent published in 2009 - IPC B63H1/14 B63H1/28 B63H3/00

Abstract RU 2369520 C2

FIELD: transport.

SUBSTANCE: low-RPM propeller screw (PS) has a sleeve-like hub accommodating blade shanks pivoted to vary PS pitch by turning the blades about the axis misaligned with respect to PS rotational axis and shifted relative to the latter. Aforesaid hub is furnished with moving circular insert. Blade shanks incorporate rods misaligned relative to PS axis. Mating elongated seats are made in the hub insert to receive aforesaid rods. Geometrical axis of blade shanks is aligned with that of blade turning.

EFFECT: increased thrust in wide rage of ship speed (n<80 rpm).

2 cl, 3 dwg

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RU 2 369 520 C2

Authors

Vishnevskij Leonid Iosifovich

Mavljudov Marat Abdrakhmanovich

Pashin Valentin Mikhajlovich

Pustoshnyj Aleksandr Vladimirovich

Salazkin Igor' Viktorovich

Kil'Deev Ravil' Ismailovich

Dates

2009-10-10—Published

2007-12-03—Filed