Pressure regulator for air/water mixture emerging from cathode compartment of fuel cell, comprises spring loaded piston which moves within sleeve to admit mixture when pressure exceeds atmospheric

摘要

The pressure regulator (10) has a body (14) which contains a sleeve (24) secured by screws (34). One of the screws has a controllable orifice (35) which enables atmospheric pressure to be conveyed to the inside of a piston (42) which has a return spring (60). When the pressure of the reduced oxygen air/water mixture at the entry (E) exceeds the atmospheric pressure the piston is displaced to pass the mixture to the exit (S) An Independent claim is also included for: A fuel cell energy production unit which uses the pressure regulator