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US 12,689,052 B2Granted
Fuel cell stack and fuel gas release method
AssigneeHonda Motor Co., Ltd.
InventorsYuki Ichinoe, Hideharu Naito, Takashi Takura
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Abstract
One side of a casing of a fuel cell stack is provided with an opening, a filter permeable to a fuel gas, and a cover covering the filter. The cover includes a first vent connecting the inside and the outside of the cover, and a second vent provided below the first vent and connecting the inside and the outside of the cover.
Claims7
A fuel cell stack comprising:
- a cell stack body including a plurality of power generation cells;
- and
- a casing housing at least one of the cell stack body or a fuel cell auxiliary device, wherein the casing comprises:
- a side including an opening;
- a filter attached to the opening and permeable to a fuel gas;
- and
- a cover provided outside the filter, and
- the cover comprises:
- a first vent configured to connect an inside and an outside of the cover;
- and
- a second vent provided at a position lower than the first vent and configured to connect the inside and the outside of the cover
- the casing includes a support member supporting an outer peripheral portion of the filter and having an opening for ventilation, and
- the cover presses the support member toward the side.
10 more elements
A fuel gas release method for a fuel cell stack comprising a cell stack body including a plurality of power generation cells, and a casing housing at least one of the cell stack body or a fuel cell auxiliary device, wherein
- the casing comprises:
- a side including an opening;
- a filter attached to the opening and permeable to a fuel gas;
- and
- a cover attached outside the filter, the cover comprises:
- a first vent configured to connect an inside and an outside of the cover;
- and
- a second vent provided at a position lower than the first vent and configured to connect the inside and the outside of the cover,
- the method comprising:
- releasing the fuel gas from the inside to the outside of the cover through the first vent;
- and
- taking in air from the outside to the inside of the cover through the second vent.
9 more elements
Dependencies are inferred from the claim text.