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:
Mar. 09, 2021
Filed:
Dec. 09, 2019
Mahle International Gmbh, Stuttgart, DE;
Thomas Ehlert, Böblingen, DE;
Achim Gommel, Weil der Stadt, DE;
John Jackson, Oxford, MI (US);
Simon Streng, Stuttgart, DE;
Melanie Volz, Königsbach, DE;
MAHLE International GmbH, Stuttgart, DE;
Abstract
A canister for use in an evaporative emission control system that includes an external housing; a membrane module separating the external housing into an inlet side and an outlet side; an entrance located on the inlet side in fluid communication with a fuel tank, such that a vapor mixture flows into the inlet side; an exit located on the outlet side in fluid communication with an internal combustion engine; a first valve that reversibly connects the inlet side to atmosphere; and optionally, a second valve that reversibly connects the outlet side to atmosphere. The membrane module includes one or more structured membranes having a surface with a plurality of folds, the membrane being shaped as a flat sheet or into a cylindrical geometry. The vapor mixture flows from the entrance along the surface of the membrane, such that gaseous fuel vapor permeates through the membrane to the outlet side.