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:
Apr. 12, 2005
Filed:
Oct. 14, 2003
Frèdèric Gagnon, Chatham, CA;
Frèdèric Gagnon, Chatham, CA;
Siemens Automotive Inc., , CA;
Abstract
An air mass flow controller valve for fuel cells that includes an inlet, a plurality of first and second passages and at least two air mass sensors, seat positions, closure members and actuators. The inlet is disposed along a first axis and coupled to a housing, which has first and second banks of outlets disposed along second and third axes. The first and second banks of outlets are in communication with the inlet and are coupled to the plurality of first and second passages. One of the at least two air mass sensors is disposed proximate the plurality of first passages and the other one is disposed proximate the plurality of second passages. One of the at least two seat portions is disposed between the plurality of first passages and the other one is disposed between the plurality of second passages. One of the at least two closure members is disposed proximate the plurality of first passages and the other one is disposed proximate the plurality of second passages. Each closure member is movable to a plurality of positions. A first position permits air flow between the inlet and each of the plurality of first and second passages and a second position prevents communication therebetween. The at least two actuators are coupled to a respective one of the at least two closure members and responsive to a respective one of the at least two air mass sensors to move the respective closure members between the first and second positions.