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. 03, 2019
Filed:
Feb. 07, 2017
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventors:
Raphael Gukelberger, San Antonio, TX (US);
Steven H. Almaraz, Seguin, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F02M 26/21 (2016.01); F02M 26/43 (2016.01); F02M 26/39 (2016.01); F02M 35/104 (2006.01);
U.S. Cl.
CPC ...
F02M 26/21 (2016.02); F02M 26/39 (2016.02); F02M 26/43 (2016.02); F02M 35/104 (2013.01);
Abstract
A dedicated exhaust gas recirculation configuration that provides reduced exhaust gas recirculation (EGR) backflow and reduced fresh air backflow. One-way valves are positioned in the EGR loop to reduce or avoid fresh-air backflow into the dedicated exhaust gas recirculating cylinder and/or positioned in the engine intake passage to reduce or avoid dedicated cylinder exhaust gas backflow into the intake passage.