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:
Sep. 17, 2019

Filed:

Dec. 22, 2017
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventor:

Brian D. Hoff, Washington, IL (US);

Assignee:

Caterpillar Inc., Deerfield, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 35/00 (2006.01); F02M 35/09 (2006.01); F02M 35/08 (2006.01); B01D 46/00 (2006.01); B60K 11/08 (2006.01);
U.S. Cl.
CPC ...
F02M 35/09 (2013.01); B01D 46/0042 (2013.01); B60K 11/08 (2013.01); F02M 35/086 (2013.01); B01D 2279/60 (2013.01);
Abstract

The present disclosure relates to an exhaust scavenging system for an engine system including an engine enclosed in an engine enclosure and an air intake system including an air filter having a filter element for filtering air. The exhaust scavenging system includes an exhaust conduit, a venturi, and a valve system. The exhaust conduit is coupled to the engine and is configured to receive exhaust gas discharged by the engine. The venturi is associated with the exhaust conduit and operates to generate a suction to draw air from the air filter and the engine enclosure. The valve system is configured to selectively fluidly connect the venturi with the engine enclosure or the air filter. The valve system fluidly connects the venturi with the air filter for facilitating purging of the filter element of the air filter.


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