US 12,744,227 B2 · Fuel cell membrane humidifier

Abstract

The present invention relates to a fuel cell membrane humidifier capable of preventing a humidification efficiency decrease caused by a pressure difference between the inside and the outside of a membrane humidifier. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a middle case having a module insertion part formed therein; a cap case coupled to the middle case; a hollow fiber membrane module inserted in the module insertion part; and an active pressure buffer part which is formed between the middle case and the module insertion part and prevents expansion of the module insertion part by a pressure difference between the inside and the outside of the middle case according to an output state of a fuel cell or relieves the pressure difference therebetween.

Claims7

Dependent claims

A fuel cell membrane humidifier comprising:

a middle case having a module insertion portion formed therein;
a cap case coupled to the middle case;
a hollow fiber membrane module inserted into the module insertion portion;
and
an active pressure buffer portion formed between the middle case and the module insertion portion to prevent the module insertion portion from expanding due to a pressure difference between the inside and the outside of the middle case or eliminate a pressure difference, depending on an output situation of a fuel cell,
wherein the module insertion portion includes an outer partition wall formed to be spaced apart from an inner wall of the middle case, and
the active pressure buffer portion includes a sliding structure formed between the outer partition wall and the inner wall of the middle case.

4 more elements

Dependencies are inferred from the claim text.

Fuel cell membrane humidifier

Life of this patent

Fuel cell membrane humidifier

Life of this patent

Abstract

Claims7