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:
Jul. 31, 2018

Filed:

Sep. 28, 2016
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Nan Yang, Brimfield, IL (US);

Robert C. Griffith, Chillicothe, IL (US);

Arnold M. Kim, Peoria, IL (US);

Assignee:

Caterpillar Inc., Deerfield, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 29/04 (2006.01); F02B 33/40 (2006.01); F02M 21/02 (2006.01);
U.S. Cl.
CPC ...
F02B 29/0406 (2013.01); F02B 33/40 (2013.01); F02M 21/0215 (2013.01); F02M 21/0248 (2013.01);
Abstract

A method of cooling a compressor, providing compressed working fluid, in a natural gas based combustion engine is provided. The method includes diverting at least a portion of natural gas from a fuel tank of the combustion engine. The method further includes routing the portion of natural gas towards the compressor. The method also includes providing one or more nozzles disposed at one or more strategic locations of the compressor. The method further includes injecting the portion of natural gas, via the one or more nozzles, inside the compressor. The method also includes allowing the portion of natural gas to diffuse with the compressed working fluid inside the compressor in an endothermic expansion process, to convectively cool the compressor.


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