Centrifugal water separator for a fuel cell system

A separator for a fuel cell comprising:

• first and second ends connected by a side wall to define a separation chamber, the first end having a protrusion extending into the chamber to form a channel with the wall;
• an inlet conduit tangentially connected to the wall;
• an outlet conduit connected to the wall between the inlet conduit and the first end;
• and
• a liquid drain connected to the second end.

A fuel cell system comprising:

• a fuel cell stack;
• and
• a separator in fluid communication with the fuel cell stack, the separator having:
• a first portion and a second portion forming a chamber, and
• a divider having a screen with an edge gasket, the edge gasket interposed between the first and second portions such that the screen extends across the chamber,
• wherein the first portion has a continuous inner wall and an end wall forming a central convex projection shaped to extend into the chamber and form a channel with the inner wall, the inner wall having an inlet conduit and an outlet conduit interposed between the inlet conduit and the end wall, and
• wherein the second portion has a continuous inner wall, an end wall, and a liquid drain connected to the end wall.