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:
Dec. 22, 2020

Filed:

Jul. 09, 2019
Applicant:

Nkt Hv Cables Ab, Lyckeby, SE;

Inventor:

Robert Wayne Hobson, Holly Springs, NC (US);

Assignee:

NKT HV Cables AB, Lyckeby, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 7/42 (2006.01); H02G 3/03 (2006.01); F28D 7/00 (2006.01);
U.S. Cl.
CPC ...
H01B 7/423 (2013.01); F28D 7/00 (2013.01); H02G 3/03 (2013.01);
Abstract

A power cable system including a power cable, and an evaporator pipe assembly extending along the power cable, wherein the evaporator pipe assembly having an inner liquid pipe including a pressurised liquid refrigerant, and an outer gas pipe arranged outside of and coaxially with the inner liquid pipe, wherein the inner liquid pipe is provided with a plurality of openings distributed along its length, and wherein the openings provide fluid communication between the inner liquid pipe and the outer gas pipe, allowing part of the pressurised liquid refrigerant to escape from the inner liquid pipe to the outer gas pipe and evaporate in the outer gas pipe, thereby cooling the power cable.


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