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US 8,709,671 B2Granted
Fuel cell with air channel actuator
AssigneeKorea Institute of Science and Technology
InventorsDae-Young Lee, Seo Young Kim, Young Soo Chang, Young-Sheen Hwang, Hun-Sik Han, Suk-Won Cha
Life of this patent
Estimating the term…
Abstract
Disclosed is a fuel cell including, a stack having fuel channels through which fuel flows and air channels through which air flows, the fuel channels and air channels being located at both sides of a reaction film, an actuator disposed to be involved in the air channels, the actuator allowing external air of the stack to affect the air channels, and a skirt extending from the stack with communicating with the air channels.
Claims12
A fuel cell comprising:
- a stack having a reaction film, fuel channels for a fuel flow and air channels for an air flow, the fuel channels and the air channels being located at both sides of the reaction film, respectively;
- an actuator being positioned within a skirt extending from the stack which communicates with the air channels for rendering an oscillating air flow of air outside the stack and within the skirt which air flow oscillates between a direction toward the air channels and in an opposite direction, the oscillating air flow being received by the air channels and causing inside air of the air channels to oscillate in direction in accordance with the oscillating air flow;
- and
- the skirt is configured to pre-heat and humidify the air outside the stack and within the skirt which is introduced into the air channels by the oscillating inside air of the air channels.
1 more element
A fuel cell comprising:
- a plurality of reaction films including electrodes and electrolyte attached to the electrodes;
- a plurality of separation plates disposed between the reaction films, and allowing fuel channels for a fuel flow and air channels for an air flow to be located at both sides of each reaction film, respectively;
- one or more skirts extending from the separation plates which communicate with the air channels;
- an actuator being positioned within at least one of the one or more skirts for rendering an oscillating air flow of air outside the stack and within the skirt which air flow oscillates between a direction toward the air channels and in an opposite direction, the oscillating air flow being received by the air channels and causing inside air of the air channels to oscillate in direction in accordance with the oscillating air flow;
- and
- the one or more skirts which communicate with the air channels forming a space with higher temperature and humidity than a space outside the skirt and stack due to the oscillating air flow of the air outside the stack and within the skirt and the inside air of the air channels.
3 more elements
Dependencies are inferred from the claim text.