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:
May. 25, 2010
Filed:
Sep. 14, 2007
William Lyle Schell, Morton, IL (US);
Paul Frederick Olsen, Chillicothe, IL (US);
Christopher Ronald Gehrke, Chillicothe, IL (US);
Joshua David Keyes, East Peoria, IL (US);
William Lyle Schell, Morton, IL (US);
Paul Frederick Olsen, Chillicothe, IL (US);
Christopher Ronald Gehrke, Chillicothe, IL (US);
Joshua David Keyes, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
An engine system is disclosed. The engine system has an engine block having at least one combustion chamber and at least partially defining a crankcase. The engine system also has an inlet conduit connecting a compressor of a turbocharger with the at least one combustion chamber. The engine system further has an exhaust conduit connecting a turbine of the turbocharger with the combustion chamber and a ventilation conduit connecting the crankcase with the exhaust conduit. The engine system also has a controller in communication with the turbocharger, the controller being configured to adjust the geometry of the turbocharger to maintain a pressure of the crankcase lower than a pressure of the inlet conduit.