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:
May. 09, 2017
Filed:
Feb. 02, 2012
Raphael Fischer, Herzogenaurach, DE;
Tobias Vogler, Herzogenaurach, DE;
Raphael Fischer, Herzogenaurach, DE;
Tobias Vogler, Herzogenaurach, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A cooling jacket () for cooling an electric motor, in particular a stator (), wherein a first spiral line () for transporting a coolant is formed at least partially on the cooling jacket (). The aim of the invention is to provide a cooling system that is optimized in terms of mounting space and ensures axially equalized cooling. This aim is achieved in that a second spiral line () for transporting coolant is formed at least partially, and in that based on a common spiral axis R, both spiral lines () form an axially integrated double spiral, wherein the first spiral line () is an inflow line and the second spiral line () is a return flow line. The invention further relates to a deflection unit () for the return into the second line (), which substantially prevents the static pressure from dropping.