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.:
Date of Patent:
Jul. 23, 2024
Filed:
Aug. 03, 2017
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje-si, KR;
Joon Chae Lee, Seoul, KR;
Dong Kyu Choi, Seongnam-si, KR;
Won Jae Choi, Seoul, KR;
Sung Kak Lyu, Seoul, KR;
Jae Hyeoung Jang, Seoul, KR;
HANWHA OCEAN CO., LTD., Geoje-si, KR;
Abstract
Disclosed is a method of discharging lubricant oil from a BOG reliquefaction system configured to reliquefy BOG by compressing the BOG by a compressor, cooling the compressed BOG through heat exchange with non-compressed BOG by a heat exchanger, and reducing a pressure of fluid cooled through heat exchange by a pressure reducer. In the lubricant oil discharge method, the compressor comprises at least one oil-lubrication type cylinder and it is determined that it is time to discharge condensed or solidified lubricant oil, if at least one of preset conditions is satisfied.