|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||429/13 ; 429/17|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 73 인용 특허 : 0|
A process and an apparatus control output of an air-breathing fuel cell system which consists of an air supply line, a fuel cell, an air exhaust line, and a separate gas supply system for hydrogen gas. To control the fuel cell output, an adjustable rotary speed compressor is located in the air supply line and a variable absorption capacity expander is located in the air exhaust line. The compressor, the expander, and an additional electric motor are positioned on a common shaft. The expander converts the pressure energy contained in the exhaust air into ...
A process for operating an apparatus controlling output of an air-breathing fuel cell system, comprising the steps of determining, based on measured fuel cell current, a desired value for air volume flow, regulating an actual value of the air volume flow by adjusting rotary speed of a compressor to the desired value, and adjusting pressure in a cathode space of the fuel cell to a predetermined working pressure by adjusting an expander absorption capacity.