Patent ID: 9683517
Date: 2017-06-20
CPC Classifications: B63H,F02M,F04B,F16H,Y02T

Claim:
1. An apparatus for supplying fuel to an engine of a ship, comprising: a high pressure pump configured to pressurize liquefied natural gas (LNG) and further configured to send the pressurized LNG toward the engine; a hydraulic motor configured to drive the high pressure pump; a first hydraulic power unit configured to supply hydraulic power to the hydraulic motor; a second hydraulic power unit configured to supply hydraulic power to the hydraulic motor, and further configured to operate when the first hydraulic power unit is not operable; and a lubricating pump configured to supply lubricating oil the high pressure pump; wherein the first hydraulic power unit is connected to the hydraulic motor by a first hydraulic line in which a first shutdown valve is installed, the second hydraulic power unit is connected to the hydraulic motor by a second hydraulic line in which a second shutdown valve is installed, and the first shutdown valve is open when the first hydraulic power unit operates and the second shutdown valve is open when the second hydraulic power unit operates.