The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
Jan. 11, 2001
Lothar Matejcek, Mommenheim, DE;
General Motors Corporation, Detroit, MI (US);
Abstract
A fuel cell system in which methanol is supplied in liquid form to the fuel cells (so-called Direct Methanol Fuel Cell (DMFC) system) with a container containing a supply of methanol, a conduit line designed to supply liquid methanol leading from the container to the fuel cells, another conduit line running from the fuel cells back to the container, a nozzle present in the other line and a pressure-boosting pump present in the conduit system, characterized by the fact that the pump is arranged in the conduit line leading from the container to the fuel cells, and a cooler is preferably arranged in the conduit line leading from the container to the fuel cells. In this way, one succeeds in supplying the fuel cells with a liquid fuel which is undersaturated with CO and therefore can absorb CO forming in the fuel cells so that as little gaseous CO as possible is contained in the fuel cell system, thus increasing the power of the system.