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:
Aug. 22, 2017
Filed:
Mar. 26, 2015
Ford Global Technologies, Llc, Dearborn, MI (US);
Joerg Kemmerling, Monschau, DE;
Franz Arnd Sommerhoff, Aachen, DE;
Andreas Kuske, Geulle, NL;
Vanco Smiljanovski, Bedburg, DE;
Helmut Matthias Kindl, Aachen, DE;
Werner Willems, Aachen, DE;
Claudia Katharina Herudek, Aachen, DE;
Michael Forsting, Moenchengladbach, DE;
Bas Lambertus van den Heuvel, Wijnandsrade, NL;
Wilbert Hemink, Landgraaf, NL;
Claudia Conee, Herzogenrath, DE;
Richard Fritsche, Herzogenrath, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system and methods are described for a turbocharged engine, comprising powering the engine using a first operating cylinder, supplementing the power using a second switchable cylinder, deactivating the second switchable cylinder responsive to a load below a first threshold, and closing a first shut-off valve downstream of a compressor during the partial deactivation to prevent a first turbocharger from imparting a delivery action into a second compressor during the partial deactivation. Embodiments are further described wherein a bypass line in a second exhaust line further serves as a short-circuit line to prevent the second compressor from imparting a delivery action against the closed first shut-off valve. A variable valve timing is then included to further optimize the combustion process during the partial deactivation.