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US 2022/0278342 A1Published application
Humidifier, fuel cell device with humidifier and motor vehicle
OwnerRune STAECK, Tore WESTPHALinventors
Life of this patent
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Abstract
A humidifier for a fuel cell device is provided which includes a water vapor permeable membrane and at least one flow field arranged on one side of the membrane, in which flow channels are separated by flow field webs. The flow field webs are designed as hollow webs for integration into a coolant circuit. A fuel cell device with a humidifier as well as to a motor vehicle with such a fuel cell device are also provided.
Claims9
A humidifier for a fuel cell device, the humidifier comprising:
- a water vapor permeable membrane;
- and
- at least one flow field arranged on one side of the membrane;
- wherein the flow field includes flow channels separated by flow field webs;
- wherein the flow field webs are hollow and configured for integration into a coolant circuit;
- wherein the flow field webs have respective cross-sectional shapes comprising polygons;
- wherein the flow field webs have respective water reservoirs on respective external sides of the flow field webs;
- and
- wherein the water reservoirs are formed of a hydroscopic material.
6 more elements
(canceled)
4-5. (canceled)
A fuel cell device, comprising:
- a fuel cell stack including a cooling circuit;
- and
- a humidifier including:
- a water vapor permeable membrane;
- and
- at least one flow field arranged on one side of the membrane;
- wherein the flow field includes flow channels separated by flow field webs;
- wherein the flow field webs are hollow;
- wherein the flow field webs have respective cross-sectional shapes comprising polygons;
- wherein the flow field webs have respective water reservoirs on respective external sides of the flow field webs;
- and
- wherein the water reservoirs are formed of a hydroscopic material;
- wherein the cooling circuit is routed through the flow field webs of the humidifier;
- and
- wherein the flow channels are flow-connected with a separator of the fuel cell stack.
12 more elements
A motor vehicle, comprising:
- a fuel cell device including:
- a fuel cell stack including a cooling circuit;
- and
- a humidifier including:
- a water vapor permeable membrane;
- and
- at least one flow field arranged on one side of the membrane;
- wherein the flow field includes flow channels separated by flow field webs;
- wherein the flow field webs are hollow;
- wherein the flow field webs have respective cross-sectional shapes comprising polygons;
- wherein the flow field webs have respective water reservoirs on respective external sides of the flow field webs;
- and
- wherein the water reservoirs are formed of a hydroscopic material;
- wherein the cooling circuit is routed through the flow field webs of the humidifier;
- and
- wherein the flow channels are flow-connected with a separator of the fuel cell stack.
13 more elements
Dependencies are inferred from the claim text.