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:
Dec. 18, 2018
Filed:
Nov. 27, 2013
Siemens Aktiengesellschaft, München, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
An electric machine includes a housing having an air inlet opening near a front or rear end of the housing for aspirating air, and an air outlet opening for expelling air. The housing accommodates a stator, and a rotor is mounted in the housing for rotation about an axis of rotation. Mounted on a side of the housing in parallel relation to the axis of rotation is a hood-like attachment to cover the air inlet and outlet openings so that air expelled from the housing through the air outlet opening is fed back to the air inlet opening. Disposed in the stator are pipes for flow of a liquid cooling medium to directly cool the stator during operation. At least some of the pipes project beyond the stator toward the front and rear ends, so that during operation heat is removed by the pipes from air flowing in the housing.