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:
Oct. 09, 2018

Filed:

May. 12, 2015
Applicant:

Daimler Ag, Stuttgart, DE;

Inventors:

Normann Freisinger, Lorch, DE;

Juergen Friedrich, Stuttgart, DE;

Assignee:

Daimler AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 37/00 (2006.01); F02B 31/00 (2006.01); F02D 13/02 (2006.01); F02B 37/02 (2006.01);
U.S. Cl.
CPC ...
F02B 37/025 (2013.01); F02B 31/00 (2013.01); F02B 37/001 (2013.01); F02D 13/0242 (2013.01); F02D 13/0257 (2013.01); F02B 2031/006 (2013.01);
Abstract

A four-stroke reciprocating piston internal combustion engine is disclosed. The engine includes an even number of cylinders grouped into a first half and a second half. An exhaust gas turbocharger has a first turbine inlet and a second turbine inlet. Each of the cylinders has an intake duct with an intake opening, a first exhaust duct with a first exhaust opening, and a second exhaust duct with a second exhaust opening. The first half of cylinders is connected via the respective first exhaust ducts to the first turbine inlet and is connected via the second exhaust ducts to the second turbine inlet. The second half of cylinders is connected via the respective first exhaust ducts to the second turbine inlet and is connected via the respective second exhaust ducts to the first turbine inlet. The respective second exhaust openings have a larger diameter than the respective first exhaust openings.


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