Toroidal scavenged reservoir for fuel cell purge line system
A fuel cell system and fuel cell technology, applied in fuel cells, electrochemical generators, circuits, etc., can solve problems such as channel blockage and obstruction of fluid flow.
Inactive Publication Date: 2018-01-30
FORD GLOBAL TECH LLC
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Problems solved by technology
This approach leads to the potential for problems during cold weather operation of the fuel cell when water may freeze in channels or valves or other areas of the fuel cell that have a small cross-sectional area
The resulting icing may cause at least a portion of the channel to become clogged and impede fluid flow (e.g., removal of water and nitrogen), which may inhibit the function of the fuel cell system
Method used
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[0018] Embodiments of the present disclosure are described herein. It is to be understood, however, that the disclosed embodiments are merely examples and that other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. As will be understood by those of ordinary skill in the art, various features shown and described with reference to any one figure may be combined with features shown in one or more other figures to create a feature not explicitly shown or described. Example. The combinations of features shown provide representative embodiments for typical applications. Various combinations and modifications of the features con...
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Abstract
A toroidal scavenged reservoir for a fuel cell purge line system is disclosed. A fuel cell system includes a fuel cell stack, a separator and a scavenging reservoir. The separator is downstream of andin fluid communication with the fuel cell stack. The scavenging reservoir is downstream of and in fluid communication with the separator. The scavenging reservoir includes an inlet, an outlet, and apartially toroidal middle interconnecting the inlet and outlet. The partially toroidal middle has a radius of curvature, a torus diameter, and an arc length selected such that a minimum volume of liquid necessary to completely block passage of fluid therethrough is the same over a range of tilt angles defined by the minimum volume of liquid, the radius of curvature, and torus diameter. The arc length is based on the radius of curvature and the torus diameter.
Description
technical field [0001] The present disclosure relates to a fuel cell purge pipeline system. Background technique [0002] During fuel cell operation, by-products such as product water and nitrogen, as well as undepleted hydrogen, form on the anode side of the fuel cell stack. In some known systems, product water and nitrogen buildup are controlled in an attempt to avoid fuel cell performance degradation and / or fuel cell system shut down. One known method is to release water and nitrogen via channels downstream of the fuel cell stack. Using this approach, channels are connected to valves to allow the controllable release of water and nitrogen from the fuel cell stack. This approach leads to the potential for problems during cold weather operation of the fuel cell when water may freeze in channels or valves or other areas of the fuel cell that have a small cross-sectional area. The resulting icing may cause at least a portion of the channel to become clogged and impede flui...
Claims
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IPC IPC(8): H01M8/04119H01M8/04082H01M8/0662
CPCH01M8/04179H01M8/04231H01M8/04253Y02E60/50H01M8/04223
Inventor 瑟哈·索恩
Owner FORD GLOBAL TECH LLC