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:
Jan. 22, 2008
Filed:
Nov. 03, 2003
Ian Faye, Stuttgart, DE;
Ulrich Gottwick, Stuttgart, DE;
Rainer Saliger, Freiberg, DE;
Jan-michael Graehn, Stuttgart, DE;
Ian Faye, Stuttgart, DE;
Ulrich Gottwick, Stuttgart, DE;
Rainer Saliger, Freiberg, DE;
Jan-Michael Graehn, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The fuel cell system has a fuel cell unit and a catalytically active reactor unit () for at least partial chemical transformation of an operating medium stream (), especially a reformer, gas purifier stage and/or a combustor, in which the catalytically active reactor unit () has a variable catalytically active reactor volume () acted on by the operating medium stream. To provide the fuel cell system with a higher efficiency and good dynamic behavior the catalytically active reactor unit is provided with at least one control device () for controlling and/or for changing the variable catalytically active reactor volume () acted on by the operating medium stream (). In a preferred embodiment the control device includes a first valve () for the reactor unit arranged downstream of the maximum reactor volume and a second valve () connected with the reactor unit upstream of the first valve, so that, when the second valve is opened and the first valve is closed, the operating medium stream () passes through an effective reactor volume that is smaller than the maximum reactor volume.