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:
Aug. 09, 2022
Filed:
Aug. 26, 2021
Mahle International Gmbh, Stuttgart, DE;
Antonio Spadafora, Troy, MI (US);
Eric Mathes, Royal Oak, MI (US);
Kathleen Kogelschatz, Birmingham, MI (US);
Michael Salt, West Bloomfield, MI (US);
Jason Dreveny, Chatham, CA;
Tom Seixas, Troy, MI (US);
Tammy Libbrecht, Chatham, CA;
Abstract
A positive crankcase ventilation (PCV) valve includes a tubular body extending along an axis between a first end and a second end, the tubular body having an outer diameter and an inner diameter defining a wall around a central passage that extends through the tubular body and is orthogonal to the axis, and a metering device secured within the central passage adjacent the first end. The wall includes a window between the metering device and second end, and the window defines an air flow path through the wall and into the central passage for detecting a disconnection of the PCV valve from the crankcase, wherein a total area of the window is greater than an open axial area within the metering device when the metering device is in a maximum flow condition.