DME-fueled generator

A dimethyl ether (DME)-fueled generator comprising:

• a power generation unit configured to generate electricity by receiving driving force;
• a DME engine configured to generate the driving force by burning DME fuel;
• and
• a DME supply unit configured to supply the DME fuel to the DME engine,
• wherein the DME supply unit comprises:
• a DME fuel tank in which the DME fuel is stored;
• a DME injection unit configured to inject the DME fuel into the DME engine by receiving the DME fuel from the DME fuel tank;
• a DME supply line which is a flow path configured to deliver the DME fuel in the DME fuel tank to the DME injection unit in a liquid state;
• a DME recovery line configured to recover the DME fuel remaining in the DME injection unit in a state in which gaseous and liquid states coexist;
• a DME fuel tank valve provided in the DME supply line and configured to open or block the DME fuel discharged from the DME fuel tank;
• a DME fuel filter provided downstream of the DME fuel tank valve in the DME supply line and configured to remove impurities in the DME fuel;
• a DME feed pump provided downstream of the DME fuel filter in the DME supply line and configured to deliver the DME fuel to the DME injection unit;
• a DME fuel accumulator provided downstream of the DME feed pump in the DME supply line and configured to reduce pulsation caused by the DME feed pump;
• a DME fuel pressure regulator provided downstream of the DME fuel accumulator in the DME supply line;
• a DME fuel solenoid valve provided downstream of the DME fuel pressure regulator in the DME supply line;
• a DME fuel cooler provided in the DME recovery line to cool the recovered DME fuel;
• and
• a DME fuel purge unit provided in the DME recovery line to purge a portion of the recovered DME fuel,
• wherein the DME supply unit further comprises a DME feed pump cooler configured to cool the DME feed pump,
• wherein a plurality of DME fuel tank valves are provided, and the plurality of DME fuel tank valves are connected in parallel on the DME supply line.