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. 23, 2019
Filed:
Jun. 01, 2015
Siemens Aktiengesellschaft, München, DE;
Josef Niedermeyer, Hilpoltstein, DE;
Ekkehard Ressel, Heilsbronn, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
A device for lubricating an antifriction bearing of an electric motor includes a lubrication chamber located around a shaft of the electric motor and adjacent to the antifriction bearing when the shaft rotates. The lubrication chamber has a radial outer wall which is provided with at least one opening. An oil reservoir configured for arrangement on an exterior or an interior of the electric motor includes an oil pan and a ring-shaped or disk-shaped oil delivery member which directly or indirectly moves along on the shaft and is configured to run through the oil pan and to enable oil to be transported from the oil pan into the lubrication chamber, with oil being able to flow out of the lubrication chamber via the at least one opening back into the oil pan.