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:
Jun. 09, 2026
Filed:
May. 21, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Helerson Kemmer, Vaihingen, DE;
Jochen Braun, Heimsheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a heat exchanger system for operating a fuel cell stack, comprising: —a first compressor and a second compressor for the cathode gas fed to the fuel cell stack, the second compressor being fluidically downstream of the first compressor; —a turbine, which is mechanically coupled to the second compressor and against which the cathode gas discharged from the fuel cell stack flows; —a first heat exchanger, which is thermally coupled to the fed cathode gas between the first compressor and the second compressor; —a second heat exchanger, which is thermally coupled to the fed cathode gas downstream of the second compressor; —a fourth heat exchanger, which is thermally coupled to the discharged cathode gas downstream of the turbine; wherein the fourth heat exchanger is thermally variably coupled to the first heat exchanger and to the second heat exchanger in order to control a heat exchange for cooling the first heat exchanger and the second heat exchanger.