EP 4227210 A1 20230816 - A FLOW GUIDE ARRANGEMENT OF A RECTRACABLE THRUSTER, A RECTRACABLE THRUSTER, AND A SYSTEM

Title (en)

A FLOW GUIDE ARRANGEMENT OF A RECTRACABLE THRUSTER, A RECTRACABLE THRUSTER, AND A SYSTEM

Title (de)

STRÖMUNGSFÜHRUNGSANORDNUNG EINES REKTRAZIIERBAREN STRAHLRUDERS, REKTRAZIVER STRAHLRUDER UND SYSTEM

Title (fr)

AGENCEMENT DE GUIDAGE D'ÉCOULEMENT D'UN PROPULSEUR RÉTRACTABLE, PROPULSEUR RÉTRACTABLE ET SYSTÈME

Publication

EP 4227210 A1 20230816 (EN)

Application

EP 23154200 A 20230131

Priority

FI 20225121 A 20220211

Abstract (en)

A flow guide arrangement of a retractable thruster unit (1), the retractable thruster unit comprising a thruster housing (2) and a stem (3) for connecting the thruster housing (2) to a support and lifting structure, wherein the thruster housing (2) is arranged rotatable around an axis (V) of the stem (3), a propeller (4) arranged rotatable relative to a longitudinal axis (L) of the thruster housing (2), and a drive means for rotating the propeller. The flow guide (10) is arranged on the periphery of the thruster housing (2) on a side opposite to the propeller (4).

IPC 8 full level

B63H 25/46 (2006.01)

CPC (source: EP FI)

B63H 5/125 (2013.01 - FI); B63H 5/14 (2013.01 - FI); B63H 5/15 (2013.01 - FI); B63H 25/42 (2013.01 - FI); B63H 25/46 (2013.01 - EP); B63H 2025/465 (2013.01 - EP)

Citation (applicant)

US 3550547 A 19701229 - PLEUGER FRIEDRICH W, et al
US 5522335 A 19960604 - VERONESI LUCIANO [US], et al

Citation (search report)

[I] US 5522335 A 19960604 - VERONESI LUCIANO [US], et al
[IA] EP 2931600 B1 20181107 - ROLLS ROYCE OY AB [FI]
[A] CN 111645838 A 20200911 - CHINA SHIP SCIENT RES CT
[A] EP 2994379 B1 20190501 - BECKER MARINE SYSTEMS GMBH [DE]
[A] GO J S ET AL: "Effects of a duct before a propeller on propulsion performance", OCEAN ENGINEERING, vol. 136, 15 May 2017 (2017-05-15), pages 54 - 66, XP029984300, ISSN: 0029-8018, DOI: 10.1016/J.OCEANENG.2017.03.012

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4227210 A1 20230816; FI 20225121 A1 20230812

DOCDB simple family (application)

EP 23154200 A 20230131; FI 20225121 A 20220211