US Patent 11641021 Humidifier for fuel cell

A humidifier for a fuel cell includes: a housing that includes a moist air supply port through which moist air is supplied, a moist air discharge port through which the moist air is discharged, and an inflow gas supply port through which inflow gas is supplied; a humidification unit provided in the housing to humidify the inflow gas by using the moist air; and a humidification amount adjusting unit to selectively adjust an amount of humidification of the inflow gas by the humidification unit based on a flow rate of the moist air supplied to the moist air supply port, thereby obtaining an advantageous effect of accurately adjusting the amount of humidification based on an operating condition of a fuel cell stack.