发明申请
- 专利标题: Water Removal Features for PEMFC Stack Manifolds
- 专利标题(中): PEMFC堆叠歧管的除水特性
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申请号: US11936633申请日: 2007-11-07
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公开(公告)号: US20090117432A1公开(公告)日: 2009-05-07
- 发明人: Lee C. Whitehead , Steven R. Falta , Thomas A. Trabold , Jon P. Owejan , Thomas W. Tighe
- 申请人: Lee C. Whitehead , Steven R. Falta , Thomas A. Trabold , Jon P. Owejan , Thomas W. Tighe
- 申请人地址: US MI DETROIT
- 专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址: US MI DETROIT
- 主分类号: H01M8/04
- IPC分类号: H01M8/04 ; H01M8/10
摘要:
A bipolar plate includes angled facets oriented to form V-shaped projections on the plate edge. Liquid leaving the reactant channels is drawn back into the V-shaped grooves of the projections, leaving no liquid to obstruct the channel exit openings. The bipolar plate includes one portion of the bipolar plate offset from another portion of the bipolar plate so as to expose the reactant channels. The liquid is drawn toward the end portions of the reactant channels by capillary forces, while the gas flows can exit near the beginning of the offset portion. A fuel cell stack includes angled facets that are rotated to lie in the plane of the bipolar plate edges. The edges are chamfered so the channel exit openings of the reactant channels are at the tip portions thereof, thus allowing the liquid to flow away from the channel exit openings and the gas to exit freely.
公开/授权文献
- US08168340B2 Water removal features for PEMfc stack manifolds 公开/授权日:2012-05-01
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