US 12,264,617 B2
DME-fueled generator
Wonjun Cho, Gyeonggi-do (KR); Jeseol Lee, Daejeon (KR); Youngsoo Lee, Chungcheongbuk-do (KR); Wonaje Cho, Seoul (KR); Hyejin Yu, Daejeon (KR); and Junwoo Lee, Daejeon (KR)
Assigned to BIO FRIENDS INC., Daejeon (KR)
Appl. No. 18/681,390
Filed by BIO FRIENDS INC., Daejeon (KR)
PCT Filed Aug. 25, 2022, PCT No. PCT/KR2022/012717
§ 371(c)(1), (2) Date Feb. 5, 2024,
PCT Pub. No. WO2023/033454, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 10-2021-0117741 (KR), filed on Sep. 3, 2021.
Prior Publication US 2024/0352887 A1, Oct. 24, 2024
Int. Cl. F02M 21/02 (2006.01); F02B 43/10 (2006.01); F02B 63/04 (2006.01); F02B 77/00 (2006.01)
CPC F02B 63/04 (2013.01) [F02B 43/10 (2013.01); F02B 2063/045 (2013.01); F02B 2077/06 (2013.01)] 7 Claims
OG exemplary drawing
 
1. 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.