Apparatus and method for liquefied natural gas carrier propulsion
US7793502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2007 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T70/5218
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is an apparatus and method for liquefied natural gas (LNG) carrier propulsion. In the apparatus and method, the propulsion of an LNG carrier is done by only a single main diesel engine and has construction to promptly cope with emergencies caused by malfunction of the main diesel engine. The propulsion apparatus for an LNG carrier comprising a boil-off gas re-liquefaction apparatus for re-liquefying boil-off gas generated in LNG storage tanks to return re-liquefied boil-off gas back to the LNG storage tank comprises a single main diesel engine, a propulsion shaft separably connected to the main diesel engine, and an electric motor for propulsion separably connected to the propulsion shaft and supplied with power intended for operation of the boil-off gas re-liquefaction apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.