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US 4,783,895 AGranted
Method of making apparatus for damping torsional vibrations
AssigneeLuk Lamellen und Kupplungsbau GmbH
InventorWolfgang Reik
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AssigneeLuk Lamellen und Kupplungsbau GmbH
InventorWolfgang Reik
Estimating the term…
A method of making a torsional vibration damping apparatus which is used in the power train between the engine and the transmission of a motor vehicle and wherein two flywheels are rotatable relative to each other against the oppositions of dampers in a fluid-containing annular chamber of the flywheel which is driven by the output shaft of the engine involves rotation of the chambered flywheel at 4000-7000 RPM during or immediately following admission of a viscous fluid medium into the chamber. Such rotation results in complete expulsion of air from the radially outermost portion of the chamber and renders it possible to properly balance the chambered flywheel in a next-following step. The balancing step includes rotating the chambered flywheel at 400-2000 RPM. Such balancing step can be carried out prior or subsequent to coupling of the chambered flywheel with the other flywheel.
A method of making torsional vibration damping apparatus wherein a composite flywheel has a first flywheel connectable with the engine of a motor vehicle and a second flywheel connectable with a transmission, wherein at least one of the first and second flywheels has an annular chamber for a supply of fluid medium being of pasty consistency having a high viscosity and wherein the first and second flywheels are movable angularly with reference to each other, comprising the steps of balancing at least the one flywheel;
Dependencies are inferred from the claim text.