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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11724789 B1

PDFFull Text
Date of Patent:
Aug. 15, 2023

Filed:

Jan. 24, 2018

Boil-off gas re-liquefying method for lng ship

Applicant:

Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje-si, KR;

Inventors:

Hae Won Jung, Seoul, KR;

Dong Eok Kang, Busan, KR;

Joon Chae Lee, Seoul, KR;

Dong Kyu Choi, Busan, KR;

Assignee:

DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., Geoje-si, KR;

Attorney:

K&L Gates LLP

Primary Examiner:

Frantz F Jules

Assistant Examiner:

Jason N Thompson

Int. Cl.
CPC ...
F28F 9/02 (2006.01); F25J 1/00 (2006.01); F25J 1/02 (2006.01); F25J 5/00 (2006.01); B63J 2/12 (2006.01); B63B 25/16 (2006.01); B63H 21/38 (2006.01); F02B 43/00 (2006.01); F02M 21/02 (2006.01); F02M 21/06 (2006.01); F28D 9/00 (2006.01); B63J 99/00 (2009.01); F02B 43/10 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
B63J 2/12 (2013.01); B63B 25/16 (2013.01); B63H 21/38 (2013.01); F02B 43/00 (2013.01); F02M 21/0215 (2013.01); F02M 21/0287 (2013.01); F02M 21/06 (2013.01); F25J 1/0025 (2013.01); F25J 1/0254 (2013.01); F25J 1/0277 (2013.01); F25J 5/002 (2013.01); F28D 9/0006 (2013.01); F28F 9/0278 (2013.01); B63J 2002/125 (2013.01); B63J 2099/003 (2013.01); F02B 2043/103 (2013.01); F25J 1/0202 (2013.01); F25J 2290/62 (2013.01); F28D 2021/0033 (2013.01);
Abstract

Disclosed herein is a BOG reliquefaction method for LNG ships. The BOG reliquefaction method for LNG ships includes: 1) compressing BOG; 2) cooling the BOG compressed in Step 1) through heat exchange between the compressed BOG and a refrigerant using a heat exchanger; 3) expanding the BOG cooled in Step 2); and 4) stably maintaining reliquefaction performance regardless of change in flow rate of the BOG compressed in Step 1) and supplied to the heat exchanger to be used as a reliquefaction target.

Find Patent Forward Citations

Jung, Hae. (2023). Boil-off gas re-liquefying method for lng ship (U.S. Patent No. 11724789). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11724789

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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