HYDROGEN SUPPLY SYSTEM OF FUELCELL FOR AUTOMOBLIE

摘要

PURPOSE: A hydrogen supplying system for automobile fuel cell is provided to control the amount of cooling water according to the temperature of 'hydrogen gas supplied from fuel tank', easily control relative humidity of ' hydrogen gas supplied to the stack', and optimize relative humidity of the receiving cathode. CONSTITUTION: A fuel cell supplying system for car hydrogen comprises a fuel tank (112) for storing hydrogen; regulators (114,116) which controls pressure of 'hydrogen supplied from the fuel tank'; an ejector supplying ' hydrogen which pressure is controlled in the regulator' to the stack(110); a heat exchanger installed between fuel tank and ejector to exchange heat between 'hydrogen supplied through the hydrogen supply line' and 'the cooling water ejected in the stack'; a recycle line (122) supplying to ejector by recirculating 'the gas ejected in stack'; and a controlling unit controls the amount of 'cooling water supplied to the heat exchanger'. [Reference numerals] (AA) Hydrogen supply; (BB) Discharge impurities(hydrogen/nitrogen/vapor/water, etc); (CC) Air supply