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:
Jun. 01, 1999
Filed:
May. 19, 1997
Applicant:
Inventors:
Assignee:
Luk Lamellen und Kupplungsbau GmbH, Buhl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ;
U.S. Cl.
CPC ...
192 7017 ; 192 5551 ; 192207 ; 192212 ; 464 57 ; 464 68 ; 74574 ;
Abstract
An apparatus for damping torsional vibrations, particularly between coaxial primary and secondary masses of a composite flywheel in the power train between the engine and the transmission of a motor vehicle, has at least one coil spring or torsion spring which extends around the common axis of the two masses, which is stressed at least in the radial direction, and which is in a mere frictional (rather than positive) torque transmitting engagement with at least one of the masses. The spring can be installed to transmit torque from the secondary mass to the primary mass and/or vice versa, and such spring can operate in series with a damper between the primary and secondary masses.