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:
Dec. 30, 2014
Filed:
Sep. 06, 2011
Doug Vanderwees, Mississauga, CA;
Manaf Hasan, Gothenburg, SE;
Jon Wilson, Paris, TN (US);
Jack Kummerow, Big Sandy, TN (US);
Doug Vanderwees, Mississauga, CA;
Manaf Hasan, Gothenburg, SE;
Jon Wilson, Paris, TN (US);
Jack Kummerow, Big Sandy, TN (US);
Dana Canada Corporation, Oakville, Ontario, CA;
Abstract
A humidifier for a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges. A water permeable membrane is provided between each pair of plates. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). The support structures may optionally be connected together by webs having holes for flow distribution between the top and bottom of each plate.