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:
Dec. 29, 2020
Filed:
Feb. 01, 2019
Applicant:
Caterpillar Inc., Deerfield, IL (US);
Inventors:
Lee D. Kress, Lafayette, IN (US);
Rodney A. Lawrence, Frankfort, IN (US);
William Jenkins, Flora, IN (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/00 (2006.01); F02B 43/12 (2006.01); F01P 3/20 (2006.01); F01M 13/02 (2006.01); F28D 7/16 (2006.01); F28D 21/00 (2006.01); F02B 43/10 (2006.01);
U.S. Cl.
CPC ...
F01M 13/0033 (2013.01); F01M 13/028 (2013.01); F01P 3/20 (2013.01); F02B 43/12 (2013.01); F28D 7/1607 (2013.01); F01M 2013/0038 (2013.01); F01P 2060/18 (2013.01); F02B 2043/103 (2013.01); F28D 2021/004 (2013.01);
Abstract
A method for ventilating a crankcase of an internal combustion engine using natural gas as a fuel source may include filtering ambient air through an air filter. The method may also include heating the filtered ambient air by a jacket heat exchanger. The method may further include directing the heated ambient air through an inlet of the crankcase to purge blow-by gases including natural gas from the crankcase.