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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.:

US 12188437 B1

PDFFull Text
Date of Patent:
Jan. 07, 2025

Filed:

Jan. 17, 2019

Egr pump system and control method of egr pump

Applicant:

Eaton Intelligent Power Limited, Dublin, IE;

Inventors:

Douglas Anthony Hughes, Novi, MI (US);

Brandon Dennis Biller, Ferndale, MI (US);

Jim Kevin Spring, Brighton, MI (US);

Jesse Drummond, Rochester Hills, MI (US);

Matthew Fortini, Livonia, MI (US);

Assignee:

Eaton Intelligent Power Limited, Dublin, IE;

Attorney:

Merchant and Gould, PC

Primary Examiner:

Kenneth J Hansen

Int. Cl.
CPC ...
F02M 26/49 (2016.01); F02B 33/34 (2006.01); F02B 33/38 (2006.01); F02B 39/10 (2006.01); F02D 41/00 (2006.01); F02D 41/06 (2006.01); F02D 41/14 (2006.01); F02M 26/00 (2016.01); F02M 26/05 (2016.01); F02M 26/33 (2016.01); F02M 26/34 (2016.01); F02M 26/50 (2016.01); F04C 18/12 (2006.01); F04C 18/14 (2006.01); F04C 28/06 (2006.01); F04C 28/08 (2006.01); F04C 29/02 (2006.01); F04C 29/04 (2006.01);
U.S. Cl.
CPC ...
F02M 26/49 (2016.02); F02B 33/34 (2013.01); F02B 33/38 (2013.01); F02B 39/10 (2013.01); F02D 41/0007 (2013.01); F02D 41/0055 (2013.01); F02D 41/006 (2013.01); F02D 41/0065 (2013.01); F02D 41/064 (2013.01); F02D 41/1446 (2013.01); F02M 26/05 (2016.02); F02M 26/33 (2016.02); F02M 26/34 (2016.02); F02M 26/50 (2016.02); F04C 18/126 (2013.01); F04C 28/06 (2013.01); F04C 28/08 (2013.01); F04C 29/04 (2013.01); F02D 2200/021 (2013.01); F02M 26/00 (2016.02); F04C 18/14 (2013.01); F04C 29/02 (2013.01); F04C 2240/30 (2013.01); F04C 2240/81 (2013.01); F04C 2270/0525 (2013.01); F04C 2270/19 (2013.01); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01);
Abstract

Exhaust gas recirculation pump () for an internal combustion engine that includes an electric motor () disposed within a housing (). A Roots device () is coupled to the electric motor () and includes a housing () defining an internal volume () in which rotors () are disposed and are connected to the electric motor (). The electric motor housing () includes a coolant path () formed therein which extends from a coolant inlet () to a coolant outlet (), both coupled to an engine coolant circulation system. The housing includes an oil path () formed therein. The oil path includes an oil inlet () extending to at least one oil outlet (). The oil inlet and outlet are coupled to an engine oil circulation system wherein the oil path () lubricates bearings () and a transmission assembly () of the exhaust gas recirculation pump ().

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