GM GLOBAL TECHNOLOGY OPERATIONS LLC (20240421331). INTEGRATED FUEL CELL INJECTION UNIT USING ADDITIVE MANUFACTURING

INTEGRATED FUEL CELL INJECTION UNIT USING ADDITIVE MANUFACTURING

Organization Name

GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor(s)

Joseph Hahn of White Lake Township MI (US)

Patrick J. Eding of Fremont MI (US)

INTEGRATED FUEL CELL INJECTION UNIT USING ADDITIVE MANUFACTURING

This abstract first appeared for US patent application 20240421331 titled 'INTEGRATED FUEL CELL INJECTION UNIT USING ADDITIVE MANUFACTURING

Original Abstract Submitted

aspects of integrated hydrogen fuel cell injection units herein use additive manufacturing to form a single part. a space between a body and an ejector nozzle/venturi tube system forms an attenuation volume. the heat exchanger is integrated within the attenuation volume, saving space. the ejector nozzle/venturi tube, and the stack anode inlet to the fuel cell, are arranged through the heat exchanger and allow an injector at the base of the body to selectively emit hydrogen into the anode of the fuel cell. this architecture obviates the need for many o-rings and bolts used in present fuel injection systems using existing manufacturing techniques that may be unduly large and unwieldy and that may cause hydrogen leakage at different connection points.