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:
Aug. 31, 1999
Filed:
Mar. 20, 1997
Jorg Sudau, Niederwerrn, DE;
Fichtel & Sachs AG, Schweinfurt, DE;
Abstract
A torsional vibration damper for a flywheel with two inertial masses has two rotating elements which can rotate together and relative to one another. The rotating elements are connected to one another with rotational elasticity by a spring. The spring is located in a channel which is formed on the outside periphery of one of the two rotating elements. The channel is filled at least partly with lubricant. A filling passage for the lubricant is contained in one of the two rotating elements in the vicinity of the hub. The filling passage is closed by the annular surface of a component which, at least in the operationally fully assembled condition, is in contact with one of the two rotating elements and/or the hub. It is thereby possible to eliminate a separate closing cap, along with the corresponding work step which is necessary for the installation of such a closing cap.