| 摘要 |
A hybrid type hydrogen supply system is provided to maximize the hydrogen recirculation efficiency and to reduce size and cost by using a motor of low capacity to a blower. A hybrid type hydrogen supply system(1) comprises a hydrogen supply device(8) which supplies hydrogen from a high-pressure hydrogen tank(2) of a fuel cell vehicle to a fuel cell stack(3) through an ejector(5); and a hydrogen recirculation apparatus(11) which recirculates the unreacted hydrogen passing the fuel cell stack through a blower(10). The hydrogen supply device comprises a first channel(4) connecting the hydrogen tank and fuel cell stack; an ejector installed at the middle of this first channel; and a second solenoid valve(13) installed on the first channel between the ejector and the hydrogen tank. The hydrogen recirculation apparatus comprises a fourth channel(14) which it is branched from the downstream of the fuel cell stack so as to be connected to the upper stream of the fuel cell stack, and has a blower; and a fifth channel(16) which is branched from the fourth channel so as to be connected to the ejector and has a third solenoid valve(15). |
