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:
Oct. 16, 2007
Filed:
Apr. 05, 2002
Harold T. Couch, Simsbury, CT (US);
Carl A. Reiser, Stonington, CT (US);
Gennady Resnick, South Windsor, CT (US);
Deliang Yang, Torrance, CA (US);
Emily A. Dykeman, Cheyenne, WY (US);
David A. Condit, Avon, CT (US);
Harold T. Couch, Simsbury, CT (US);
Carl A. Reiser, Stonington, CT (US);
Gennady Resnick, South Windsor, CT (US);
Deliang Yang, Torrance, CA (US);
Emily A. Dykeman, Cheyenne, WY (US);
David A. Condit, Avon, CT (US);
UTC Fuel Cells, LLC, South Windsor, CT (US);
Abstract
A cell stack assembly () coolant system comprises a coolant exhaust conduit () in fluid communication with a coolant exhaust manifold () and a coolant pump (). A coolant inlet conduit () enables transportation of the coolant to the coolant inlet manifold. The coolant system further includes a bypass conduit () in fluid communication with the coolant exhaust manifold and the coolant inlet manifold, while a bleed valve () is in fluid communication with the coolant exhaust conduit and a source of gas. Operation of the bleed valve enables venting of the coolant from the coolant channels, and through a shut down conduit (). An increased pressure differential between the coolant and reactant gases forces water out of the pores in the electrode substrates (). An ejector () prevents air form inhibiting the pump. Pulsed air is blown () through the coolant channels to remove more water.