Separator plate having spacer element and fuel cell system
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorStefan Haase
Life of this patent
Estimating the term…
Abstract
A separator plate for at least one fuel cell of a fuel cell system is provided. The separator plate includes at least one seal, wherein the seal is designed to seal at least one media-conducting inner region from a non-media-conducting outer region. The separator plate additionally includes at least one spacer element, which is preferably arranged in the outer region. The separator plate can be contacted by an evaluating device in a contacting region, this region being located such that it lies, in part, between the seal and spacer element. According, a deformation of the separator plate in the contacting region within a fuel cell stack is thus prevented.
Claims19
A separator plate for at least one fuel cell of a fuel cell system, comprising:
- at least one seal, wherein the seal is designed to seal off at least one media-conducting inner region from a non-media-conducting outer region;
- and
- at least one spacer element which is situated in the outer region, wherein:
- the spacer element has a bearing region, a portion of which projects a first distance from a surface of the separator plate,
- the spacer element has a non-bearing region, a portion of which projects a second distance from the surface of the separator plate,
- the first distance is greater than the second distance,
- the bearing region passes smoothly into the non-bearing region without an abrupt transition in a longitudinal direction,
- the spacer element has at least two longitudinal ends and at least two side flanks, and
- a transition radius from the bearing region to the non-bearing region is larger by a multiple than a transition radius from the bearing region to the side flanks.
Dependencies are inferred from the claim text.