METHOD AND SYSTEM FOR SUPPLYING FUEL TO HIGH-PRESSURE NATURAL GAS INJECTION ENGINE

WIPO Patent Application WO/2012/128448

A1

The present invention relates to a system for supplying fuel to a high-pressure natural gas injection engine that is, for example, in a maritime structure using an ME-GI engine, in which evaporation gas, which is generated from a liquefied natural gas storage tank, is compressed at a medium pressure and re-liquefied, compressed at a high-pressure, gasified, and then supplied to the high-pressure natural gas injection engine. According to the present invention, provided is the system for supplying fuel to the high-pressure natural gas injection engine, comprising: an evaporation gas compression portion for receiving the evaporation gas, which is generated in a storage tank for storing liquefied gas, and compressing same; a re-liquefying device for receiving the evaporation gas, which is compressed in the evaporation gas compression portion, and liquefying same; a buffer tank for receiving the evaporation gas, which is liquefied in the re-liquefying device, and separating gas components and liquid components from same; a high-pressure pump for receiving the liquid component from the buffer tank and compressing same; and a high-pressure carburetor for gasifying the liquid component, which is compressed in the high-pressure pump, and supplying same to the high-pressure natural gas injection engine, wherein the liquid component, which is supplied from the buffer tank to the high-pressure pump, has a pressure of 12-45 bara (absolute pressure). Figure 9a

JUNG SEUNG KYO (KR)
LEE JUNG HAN (KR)
JUNG JE HEON (KR)
LEE SUNG JUN (KR)
SHIN HYUN JUN (KR)
CHOI DONG KYU (KR)

PCT/KR2011/009821

September 27, 2012

December 20, 2011

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DAEWOO SHIPBUILDING & MARINE (KR)
JUNG SEUNG KYO (KR)
LEE JUNG HAN (KR)
JUNG JE HEON (KR)
LEE SUNG JUN (KR)
SHIN HYUN JUN (KR)
CHOI DONG KYU (KR)

F02M21/02; F02M25/08; F02M31/20

WO2007117148A1	2007-10-18
WO2009136793A1	2009-11-12

KR20110023856A	2011-03-08
KR20100136691A	2010-12-29
KR100850833B1	2008-08-06
KR20100021774A	2010-02-26
KR20060123675A	2006-12-04
KR20010008914A	2001-02-05
US6530241B2	2003-03-11
KR20070044727A	2007-04-30
KR100929250B1	2009-12-01

See also references of EP 2693035A4

AIP PATENT & LAW FIRM (KR)
특허법인 에이아이피 (KR)

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