EP 4048585 A4 20231206 - SYSTEM AND METHOD FOR MARINE PROPULSION WITH LOW ACOUSTIC NOISE
Title (en)
SYSTEM AND METHOD FOR MARINE PROPULSION WITH LOW ACOUSTIC NOISE
Title (de)
SYSTEM UND VERFAHREN FÜR SCHIFFSANTRIEB MIT GERINGEM AKUSTISCHEN RAUSCHEN
Title (fr)
SYSTÈME ET PROCÉDÉ DE PROPULSION MARINE À FAIBLE BRUIT ACOUSTIQUE
Publication
Application
Priority
- US 201962924631 P 20191022
- US 2020056595 W 20201021
Abstract (en)
[origin: WO2021081048A1] A propulsion system for a marine vessel in a body of water includes an water intake formed in the hull, a impeller disc rotatable about a vertical axis for raising water and increasing the momentum of water in a plenum chamber, and a plurality of control gates located around the periphery of the hull. The impeller disc has a large outer diameter and is formed to enable efficient rotation by an electric motor. One or more of the water intake, the plenum chamber, the impeller disc and the control gates is designed to reduce acoustic noise generated by the marine vessel, direct the acoustic noise to avoid broadband acoustic noise, increase efficiency of the propulsion system and provide additional safety to passengers on the marine vessel and marine life in the body of water.
IPC 8 full level
B63B 35/54 (2006.01); B63H 11/00 (2006.01); B63H 11/08 (2006.01); B63H 11/10 (2006.01)
CPC (source: EP US)
B63B 35/54 (2013.01 - EP); B63H 1/18 (2013.01 - US); B63H 11/08 (2013.01 - US); B63H 11/102 (2013.01 - EP); B63H 11/107 (2013.01 - US); B63H 21/17 (2013.01 - US); B63H 25/48 (2013.01 - US); B63B 35/54 (2013.01 - US); B63H 2011/008 (2013.01 - EP); B63H 2011/087 (2013.01 - EP)
Citation (search report)
- [XAI] KR 101761662 B1 20170726 - XTIM OCEAN INC [KR]
- [XI] US 5146865 A 19920915 - LAIS SIEGFRIED [DE], et al
- [A] EP 0918014 B1 20031210 - ISHIGAKI MECH IND [JP]
- See references of WO 2021081048A1
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 MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2021081048 A1 20210429; CA 3158134 A1 20210429; EP 4048585 A1 20220831; EP 4048585 A4 20231206; US 2023113792 A1 20230413
DOCDB simple family (application)
US 2020056595 W 20201021; CA 3158134 A 20201021; EP 20878694 A 20201021; US 202017768785 A 20201021