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US 2026/0118309 A1Published application
Proton Conductor Gas Sensor
AssigneeFigaro Engineering Inc.
InventorNorio Sugita
Life of this patent
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Abstract
A proton conductor gas sensor includes a membrane electrode assembly (“MEA”); a diffusion control plate; a filter; and a housing. The diffusion control plate is provided with a protrusion with a diffusion control hole at the center and raising towards the opposite side to the MEA. A gap is present between the protrusion and the MEA. The output variance among proton conductor gas sensors is reduced by the protrusion.
Claims5
A proton conductor gas sensor comprising:
- a membrane electrode assembly (“MEA”) having a proton conductor membrane;
- catalytic electrodes on both sides of the proton conductor membrane;
- and a pair of gas diffusion layers on the catalytic electrodes in an opposite side to the proton conductor membrane;
- a diffusion control plate in contact with one face of the MEA, pressing the MEA, and having a diffusion control hole supplying atmosphere to the MEA;
- a filter supplying atmosphere to the diffusion control plate;
- and
- a housing accommodating the MEA, the diffusion control plate, and the filter,
- wherein said diffusion control plate is provided with a protrusion raising towards an opposite side to the MEA wherein the diffusion control hole is at a center portion of the protrusion, and
- wherein a gap is present between the protrusion and the MEA.
6 more elements
Dependencies are inferred from the claim text.