Patent ID: 7497180
Filing Date: 2009-03-03
Classification: B63J,F17C,Y02T

Abstract:
1. A gas supply arrangement of a marine vessel adapted to carry liquefied gas in a cargo tank having an ullage space section and a liquid phase section, the arrangement comprising: a gas main supply line for supplying gas to a gas consumption device, a first gas supply line which connects the ullage space section of the cargo tank to the gas main supply line and is provided with a compressor for raising the pressure of the gas to an adequate level for the gas main supply line, a second gas supply line which connects the liquid phase section of the cargo tank to the gas main supply line and is provided with: a pump for raising the pressure of liquid gas in the second gas supply line and for pumping the liquid gas forward in the second gas supply line, a gas reservoir having an ullage space section and a liquid phase section, a first duct section connecting the liquid phase section of the cargo tank to the gas reservoir, and a second duct section connecting the ullage space section of the gas reservoir to the gas main supply line.