Dongryul
Dongryul Lee, Daejeon KR
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20090029222 | Fuel cell with structured gas diffusion layer and manufacturing method of gas diffusion layer - A cell for a fuel cell comprises an electrolyte layer, a catalyst layer and a gas diffusion layer formed to be contacted to both sides of the electrolyte layer, an anode contacting hydrogen, and a cathode contacting oxygen and air, cations being transferred through the electrolyte layer or the operating temperature being equal to or less than 100° C., characterized in that the cell for the fuel cell has hollow portions hollowed up and down inside the gas diffusion layer. The manufacturing method uses a mold having the specific pattern to form the hollow portion in the gas diffusion layer using the micro needle or the micro lens so that the diffusion resistance inside the gas diffusion layer is lowered, making it possible to smoothly move fuel and reactants through the hollow portion and the reaction is smoothly performed even in a situation where fuel partial pressure is low. | 01-29-2009 |
Dongryul Lee, Hwaseong-Si KR
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20110159387 | Visualization Apparatus for Large Area PEMFC - Provided is a visualization apparatus for a PEMFC using a transparent window. More particularly, provided is a visualization apparatus for a large are PEMFC including: a plurality of visualization apparatuses for region cells including current collector plates each provided on both sides of a membrane electrode assembly of a PEMFC and formed with channels through which reaction gas and products flow and a transparent provided on the outer surface of the current collector plate. Further, provided is a visualization apparatus for a large area PEMFC electrically connecting the current collector plates of the visualization apparatus for region cells to each other in parallel. | 06-30-2011 |
20110159388 | Visualization Apparatus for PEMFC Stack - Provided is a visualization apparatus for a PEMFC stack using a transparent window. More particularly, provided is a visualization apparatus for a PEMFC stack including: a plurality of visualization apparatuses for unit cells including current collector plates each provided on both sides of a membrane electrode assembly of a PEMFC and formed with channels through which reaction gas and products flow and a transparent plate provided on the outer surface of the current collector plate. Provided is a visualization apparatus for a PEMFC stack electrically connecting the current collector plates of the visualization apparatus for unit cells to each other in series. | 06-30-2011 |
Dongryul Park, Seoul KR
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20130134229 | AIR CONDITIONER AND METHOD OF CONTROLLING AN AIR CONDITIONER - An air conditioner and a method of controlling an air conditioner are provided. The air conditioner may include a temperature sensor, a humidity sensor, and a controller. The temperature sensor may sense a temperature of indoor air. The humidity sensor may sense a humidity of the indoor air. The controller may use the sensed temperature and humidity to calculate an indoor standard new effective temperature and an indoor relative humidity, and perform a comfort control operation on the basis of a result of the calculation. | 05-30-2013 |
20140094108 | AIR CONDITIONER WITH IONIZER - The present invention relates to an air conditioner with an ionizer which comprises: an ionizer to generate ions mounted in the vicinity of an air outlet, a carrier to move the ionizer, and a controller to control the ionizer and the carrier. The controller controls the carrier to move the ionizer to an initial point when power is supplied to the air conditioner or the power is changed from turn off to turn on. The controller can control a position of the ionizer with the carrier in response to a sensing signal of a sensor which senses a position of a person. Accordingly, a range of ion diffusion can be controlled efficiently, and by making the ions to be discharged to a specific direction the user presents thereto, effective improvement of an ion effect the user feel can be improved. | 04-03-2014 |