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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 10215136 B1

PDFFull Text
Expired
Date of Patent:
Feb. 26, 2019

Filed:

Aug. 14, 2015

Adjustable, low loss valve for providing high pressure loop exhaust gas recirculation

Applicant:

Borgwarner Inc., Auburn Hills, MI (US);

Inventors:

David Grabowska, Asheville, NC (US);

Rajmohan Chandramohanan, Fletcher, NC (US);

Assignee:

BorgWarner Inc., Auburn Hills, MI (US);

Attorney:

BrooksGroup

Primary Examiner:

Mark A Laurenzi

Assistant Examiner:

Wesley G Harris

Int. Cl.
CPC ...
F02M 26/70 (2016.01); F01D 17/14 (2006.01); F16K 15/02 (2006.01); F16K 1/22 (2006.01); F16K 3/00 (2006.01); F16K 1/20 (2006.01); F02D 9/10 (2006.01); F02B 37/18 (2006.01); F16K 1/12 (2006.01); F16K 11/085 (2006.01); F02B 39/00 (2006.01); F02M 26/05 (2016.01); F02M 26/10 (2016.01); F02B 29/04 (2006.01); F02B 37/02 (2006.01); F02B 37/22 (2006.01); F02D 9/04 (2006.01); F02D 9/14 (2006.01); F02M 26/43 (2016.01);
U.S. Cl.
CPC ...
F02M 26/70 (2016.02); F01D 17/14 (2013.01); F02B 37/18 (2013.01); F02B 37/183 (2013.01); F02B 39/00 (2013.01); F02D 9/101 (2013.01); F02D 9/1015 (2013.01); F02M 26/05 (2016.02); F02M 26/10 (2016.02); F16K 1/12 (2013.01); F16K 1/2014 (2013.01); F16K 1/222 (2013.01); F16K 3/00 (2013.01); F16K 11/085 (2013.01); F16K 15/026 (2013.01); F02B 29/0406 (2013.01); F02B 37/025 (2013.01); F02B 37/22 (2013.01); F02D 9/04 (2013.01); F02D 9/14 (2013.01); F02M 26/43 (2016.02);
Abstract

High pressure loop exhaust gas circulation is achieved in an exhaust system () of an engine () by providing an adjustable valve () in an exhaust passage () of the engine (). The valve () is configured to control fluid flow through the passage () and generate pressure to drive the high pressure exhaust gas recirculation. The valve () includes a valve inner surface () that has a curvilinear profile when viewed in longitudinal cross section. An actuator () is connected to the valve (), and is configured to move the valve () relative to the exhaust passage () so as to control exhaust gas pressure within the exhaust passage (). In some embodiments, a pilot tube () is used in combination with the valve () to generate high pressure exhaust gas recirculation at the engine () intake.

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