US 7,320,840 B2 | ||
Combination of injector-ejector for fuel cell systems | ||
Rainer Pechtold, Russelsheim (Germany); and James S. Siepierski, Williamsville, N.Y. (US) | ||
Assigned to General Motors Corporation, Detroit, Mich. (US) | ||
Filed on Jul. 28, 2004, as Appl. No. 10/900,593. | ||
Claims priority of provisional application 60/487997, filed on Jul. 17, 2003. | ||
Prior Publication US 2006/0024548 A1, Feb. 02, 2006 | ||
Int. Cl. H01M 2/00 (2006.01); H01M 8/04 (2006.01) |
U.S. Cl. 429—34 [429/25] | 27 Claims |
23. A fuel cell system comprising:
a fuel cell stack including an anode inlet and an anode outlet;
a pressurized tank storing a source of hydrogen gas;
a pressure controller in fluid communication with the pressurized tank and receiving pressurized hydrogen therefrom; and
an injector/ejector device in fluid communication with the pressure controller, the anode inlet and the anode outlet, said
injector/ejector device including an injector and an ejector, wherein the injector is responsive to the hydrogen gas from
the pressure controller and injects the hydrogen gas across an opening of the ejector so as to draw anode exhaust gas from
the anode outlet into the injector/ejector device, and wherein the hydrogen gas and the anode exhaust gas are mixed in the
injector/ejector device and introduced into the anode inlet.
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