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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 11460253 B1

PDFFull Text
Date of Patent:
Oct. 04, 2022

Filed:

Aug. 20, 2020

Method for designing startup critical tube diameter of pulsating heat pipe in vertical state

Applicant:

Dalian Maritime University, Liaoning, CN;

Inventors:

Yulong Ji, Liaoning, CN;

Lilin Chu, Liaoning, CN;

Yantao Li, Liaoning, CN;

Xiu Xiao, Liaoning, CN;

Chunrong Yu, Liaoning, CN;

Assignee:

DALIAN MARITIME UNIVERSITY, Liaoning, CN;

Attorneys:

Novick, Kim & Lee, PLLC

Allen Xue

Primary Examiner:

Lee A Holly

Int. Cl.
CPC ...
F28D 15/02 (2006.01); B23P 15/26 (2006.01);
U.S. Cl.
CPC ...
F28D 15/0266 (2013.01); B23P 15/26 (2013.01); F28D 15/0233 (2013.01); B23P 2700/09 (2013.01);
Abstract

A method for designing startup critical tube diameter of pulsating heat pipe in vertical state, including the following steps: step 1. establishing a first model of working medium mass in pulsating heat pipe; step 2. establishing a second model of working medium mass in pulsating heat pipe, the second model including the vapor working medium mass model and the liquid working medium mass model in the pulsating heat pipe; step 3. according to the law of conservation of mass, combining the first model and the second model, and determining the volume percentage of the liquid working medium in the total length of the pulsating heat pipe under the condition of heat addition; step 4. determining the startup critical tube diameter of the pulsating heat pipe according to the volume percentage of the liquid working medium in the total length of the pulsating heat pipe under the condition of heat addition obtained in step 3, the physical properties of the working medium in the pulsating heat pipe, the temperatures at the heat-absorbing end and heat-releasing end, the heating power, and the filling factor.

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Ji, Yulong. (2022). Method for designing startup critical tube diameter of pulsating heat pipe in vertical state (U.S. Patent No. 11460253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11460253

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