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US 10,833,338 B2Granted
Seal structure
AssigneeHonda Motor Co., Ltd.
InventorsShuhei Goto, Ken Takahashi, Kazuo Nunokawa
Life of this patent
Estimating the term…
Abstract
Bead seal structure includes an outer bead (bead seal) for preventing leakage of fluid, and a first bypass stop protrusion (intersecting element) which intersects with the outer bead. The first bypass stop protrusion includes a root as a rising start point from a base plate and side walls which rise from the base plate. The radius of curvature of connection parts of the roots connected to the outer bead is larger than the radius of curvature of connection parts of the side walls connected to the outer bead.
Claims9
A bead seal structure comprising:
- a bead seal formed in a fuel cell metal separator to protrude in a separator thickness direction, the bead seal being configured to prevent leakage of fluid;
- and
- an intersecting element intersecting with the bead seal,
- wherein the intersecting element includes a root as a rising start point from a base plate of the fuel cell metal separator, and a side wall rising from the base plate;
- and
- a radius of curvature of a connection part of the root of the intersecting element connected to a root of the bead seal is larger than a radius of curvature of a connection part of the side wall of the intersecting element connected to a side wall of the bead seal.
3 more elements
Dependencies are inferred from the claim text.