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:
Nov. 29, 2011
Filed:
Jun. 06, 2007
Gerhard Fuhrer, Friedrichshafen, DE;
Gerhard Horing, Hagnau, DE;
Gerhard Fuhrer, Friedrichshafen, DE;
Gerhard Horing, Hagnau, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission () having a transmission housing () having a region in which gear wheels () rotate and a heat exchanger () which absorbs the heat generated in the transmission (). This heat is transferred to a transmission lubricant and released to a coolant to transport the heat away from the transmission (). A recess () is provided, in the transmission housing () outside of the region in which the gearwheels () rotate, through which transmission lubricant flows and in which the heat exchanger () is arranged. The heat exchanger () has a bypass valve () which enables the heat exchanger () to be bypassed starting at a predefined low or excess pressure.