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:
Apr. 04, 2017
Filed:
Nov. 13, 2014
Dr. Ing. H.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Henrik Schrage, Vaihingen an der Enz, DE;
Sebastian Wachter, Pressig, DE;
Abstract
A drive module for a vehicle has a transmission () and an electric machine () that is coupled to an input shaft () of the transmission (). An air-filled cavity () is formed between the electric machine () and the transmission (). The electric machine () is an external-rotor motor with a rotor () that surrounds the stator (). A fan impeller () rotates with the rotor () and draws air out of the air-filled cavity () in an axial direction, draws the air through windings () of the stator () for cooling, and subsequently conveys the air in the radial direction into a housing-side flow duct () in which heated air can be accumulated and via which the air can be returned toward the cavity (). The heated air can be cooled in the region of the flow duct () and/or in the region of the cavity ().