Use of center engine for docking

US9266594B2 · kind B2 · utility

Assignee

• CPAC SYSTEMS AB · SE

Inventor

• Mathias Lindeborg · Gothenburg, SE

Key dates

• Filing date: Feb 14, 2012
• Grant date: Feb 23, 2016
• Expiry date: Feb 14, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B63H2020/003
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a marine propulsion control system for controlling a set of propulsion units carried by a hull of a vessel, cavitation typically occurs on the propulsion unit with reverse gear engaged, and in a triple propulsion unit installation the normally idle center propulsion unit can be used to increase the reverse thrust and thereby limit the RPM of propulsion units in reverse, so that the cavitation effect is limited, and simultaneously allow for higher forward thrust on the third propulsion unit, thus increasing the total thrust for the vessel.