Atomic Energy Council-institute of Nuclear Energy Research

Institute of Nuclear Energy Research

Ying-Sheng Lee

Charn-Ying Chen

Kin-Fu Lin

Peng Yang

Ching-Shih Liu

Kang-Lin Hwang

Kang-Nang Perng

An ultrasonic wave passes different fuels of different concentrations with different velocities. The present invention provides a detecting and controlling device where, by a non-touching method, a velocity for an ultrasonic wave in a first fuel with a first fuel concentration is measured. The velocity obtained is taken for a comparison with another velocity for the same ultrasonic wave in a fuel with a default fuel concentration so that the first fuel concentration of the fuel can be under controlled.

Fuel-concentration detecting and controlling device for fuel cell

A method for manufacturing membrane electrode assembly of fuel cell includes positioning an ion exchange membrane that is cleaned and trimmed to a predetermined size in advance to a base plate, mounting the base plate to a printing platform, attaching a printing plate to the platform, coating a catalyst solution on the printing plate with a scraper, printing the catalyst solution onto the ion exchange membrane with the scraper, heating the ion exchange with a heating board to a temperature of 70&#x2013;80&#xb0; C., and waiting for the ion exchange membrane to return flat to complete the coating of the catalyst solution on the ion exchange membrane. The printing and heating steps are repeated for both anode and cathode of the ion exchange membrane. The ion exchange membrane is further subject to hot pressing and then a piece of carbon cloth is positioned on the catalyst coating to serve as a diffusion layer. This completes the manufacturing of the membrane electrode assembly.

Method for manufacturing membrane electrode assembly of fuel cell by printing processes

Growing community of inventors

Sindian, Taiwan

Ying-Sheng Lee