EJECTOR FOR HYDROGEN RECIRCULATION DEVICE

摘要

PURPOSE: An ejector for hydrogen recirculation device is provided to prevent reverse flow of recirculated hydrogen gas to a stack through an ejector and properly control hydrogen supply. CONSTITUTION: An ejector for hydrogen recirculation device comprises: a diffuser part(50) having a diffuser(51) connected to a fuel cell stack; a nozzle part(60) having a recirculation chamber(62) and a nozzle(61) which is mounted inside the recirculation chamber; a check valve part(70) having one end connected to the recirculation chamber and the other end connected to the ejector recirculation line; a chamber part(80) having a through hole(82) at one end and an opened chamber(81) at the other end; and a solenoid valve part(90) having an actuator(91) mounted to move into the chamber, solenoid coil(92), and a first spring(94).