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:
Mar. 24, 2020

Filed:

Sep. 23, 2019
Applicant:

Dlhbowles, Inc., Canton, OH (US);

Inventors:

Shridhar Gopalan, Westminster, MD (US);

Jerry Thurber, Woodbine, MD (US);

Assignee:

DLHBOWLES, INC., Canton, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/02 (2006.01); G05D 7/01 (2006.01); F02M 25/06 (2016.01); F01M 13/00 (2006.01); F02M 35/10 (2006.01);
U.S. Cl.
CPC ...
F01M 13/023 (2013.01); F01M 13/0011 (2013.01); F02M 25/06 (2013.01); F02M 35/10222 (2013.01); G05D 7/0186 (2013.01); F02D 2250/08 (2013.01);
Abstract

Provided is a PCV valve assembly that includes a fluidic geometry that allows for the flow of combustion fluid/gas to flow between an inlet and an outlet and switch between two modes of operation, (i) a radial or high flow mode, and (ii) a tangential or low flow mode, as dictated during the operation of the engine. At low vacuums, the fluidic equipped PCV valve assembly has been tuned to operate in the radial mode producing high flow rates due to low flow resistance. As vacuum increases, the PCV valve assembly is tuned to automatically switch modes. This may be enabled due to the shape of the fluidic geometry and the bypass channel which is adapted to vary the amount of flow between a first and a second control ports. The bypass channel allows the geometric fluidic pattern to switch between the high flow mode and the low flow mode.


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