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. 11, 2011
Filed:
Sep. 16, 2009
Peter Geskes, Ostfildern, DE;
Juergen Barwig, Stuttgart-Vaihingen, DE;
Jens Ruckwied, Stuttgart, DE;
Tobias Fetzer, Ostfildern, DE;
Peter Geskes, Ostfildern, DE;
Juergen Barwig, Stuttgart-Vaihingen, DE;
Jens Ruckwied, Stuttgart, DE;
Tobias Fetzer, Ostfildern, DE;
Behr GmbH & Co. KG, Stuttgart, DE;
Abstract
A flow channel for a heat exchanger for exchanging heat between a first fluid and a second fluid, the flow channel having, perpendicular to a flow channel axis, a cross-section that can be traversed, the flow channel providing for an improved transfer of heat with an acceptable drop of pressure and a reduced risk of blocking. The flow channel has a hydraulic diameter, defined as quadruple the ratio between the surface of the cross-section that is traversed and the perimeter that can be moistened by the fluid, of between 1.5 mm and 6 mm. Also a heat exchanger having a plurality of flow channels of this type, through which the first fluid flows and fluidically connected by a fluid connection. Also a charge-air system and an exhaust gas recycling system having such flow channels.