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:
Sep. 05, 2023
Filed:
Aug. 03, 2020
Nidec Gpm Gmbh, Auengrund OT Merbelsrod, DE;
Franz Pawellek, Lautertal, DE;
Marcel Berner, Hildburghausen, DE;
NIDEC GPM GmbH, Auengrund Ot Merbelsrod, DE;
Abstract
The invention relates to a shaft bearing having a seal arrangement to prevent steam leakages that can occur in the event of temperature fluctuations or pressure fluctuations between a liquid medium on the one side and a gaseous medium on the other side of the compact bearing, wherein, between a primary radial seal and a rotation bearing portion, a lubrication space surrounding a shaft circumference is arranged that receives a volume of lubricating grease that has a higher viscosity than a lubricating oil and a coolant; and a volume compensator for compensating a temperature-dependent volume fluctuation is provided that comprises a compressible material, and is arranged vertically in interaction with the volume of the lubricating oil and/or the volume of the lubricating grease.