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:
Jun. 20, 2023

Filed:

Sep. 21, 2021
Applicant:

Deere & Company, Moline, IL (US);

Inventor:

Randy R. Scarf, Gladbrook, IA (US);

Assignee:

DEERE & COMPANY, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/04 (2006.01); F01M 13/02 (2006.01); F01M 13/00 (2006.01); F02B 37/00 (2006.01);
U.S. Cl.
CPC ...
F01M 13/04 (2013.01); F01M 13/0011 (2013.01); F01M 13/028 (2013.01); F02B 37/005 (2013.01);
Abstract

An internal combustion engine includes a block containing a crankshaft and a crankcase surrounding the crankshaft, a plurality of combustion chambers configured to receive an intake fluid and generate exhaust fluid, an exhaust circuit configured to direct the exhaust fluid away from the plurality of combustion chambers, an intake circuit configured to supply the intake fluid to the plurality of combustion chambers, a turbine disposed in the exhaust circuit and having a turbine shaft configured to be driven by the exhaust fluid, a crankcase ventilation circuit configured to direct crankcase fluid away from the crankcase, and a pump disposed in the crankcase ventilation circuit and having a rotor configured to be driven by the turbine shaft to propel the crankcase fluid through the crankcase ventilation circuit.


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