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.

Date of Patent:
May. 19, 2020

Filed:

May. 16, 2016
Applicant:

Daewoo Shipbuilding & Marine Engineering Co., Ltd., Seoul, KR;

Inventors:

Hyun Jun Shin, Seoul, KR;

Dong Kyu Choi, Seongnam-si, KR;

Young Sik Moon, Gwangmyeong-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 21/38 (2006.01); F17C 9/02 (2006.01); F02M 21/02 (2006.01); F25J 1/00 (2006.01); F25J 1/02 (2006.01); F17C 6/00 (2006.01); B63B 25/16 (2006.01); B61J 99/00 (2006.01); B63J 99/00 (2009.01);
U.S. Cl.
CPC ...
B63H 21/38 (2013.01); B63B 25/16 (2013.01); F02M 21/0287 (2013.01); F17C 6/00 (2013.01); F17C 9/02 (2013.01); F25J 1/004 (2013.01); F25J 1/0025 (2013.01); F25J 1/0037 (2013.01); F25J 1/0045 (2013.01); F25J 1/0202 (2013.01); F25J 1/023 (2013.01); F25J 1/0249 (2013.01); F25J 1/0277 (2013.01); F25J 1/0288 (2013.01); F25J 1/0294 (2013.01); B63J 2099/003 (2013.01); F02M 21/0215 (2013.01); F17C 2221/033 (2013.01); F17C 2223/0161 (2013.01); F17C 2223/033 (2013.01); F17C 2227/0185 (2013.01); F17C 2227/0339 (2013.01); F17C 2227/0358 (2013.01); F17C 2265/03 (2013.01); F17C 2265/037 (2013.01); F17C 2265/066 (2013.01); F17C 2270/0105 (2013.01); F25J 2290/72 (2013.01); Y02T 10/32 (2013.01);
Abstract

A ship including a liquefied gas storage tank includes: first and second compressors which compresse a boil-off gas discharged from a storage tank; a boost compressor which compresses one part of the boil-off gas that is compressed by at least any one of the first compressor and/or the second compressor; a first heat exchanger which heat exchanges the boil-off gas compressed by the boost compressor and the boil-off gas discharged from the storage tank; a refrigerant decompressing device which expands the other part of the boil-off gas that is compressed by at least any one of the first compressor and/or the second compressor; a second heat exchanger which cools, by a fluid expanded by the refrigerant decompressing device as a refrigerant; and an additional compressor which is compresses the refrigerant that passes through the refrigerant decompressing device and second heat exchanger.


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