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:
Oct. 04, 1994
Filed:
Jun. 07, 1993
Moriji Hiraishi, Ebina, JP;
Ichiro Yamazaki, Tokyo, JP;
Nissan Motor Company, Ltd., Yokohama, JP;
Abstract
A damping mass is housed in a rolling chamber formed in a flywheel body, and executes a pendulum motion in a radial direction according to torque fluctuations. If md is the mass of the damping mass, Id is tile moment of inertia of the damping mass, rd is the radius of tile damping mass, n is the order of torque fluctuations of a rotating drive mechanism, R is the distance from the center of rotation of the body to the center of the pendulum motion of the damping mass, and L is the distance from the center of the pendulum motion of the damping mass to the center of gravity of same, the actual ratio R/L is set larger than a value Ro/Lo obtained from the theoretical relation Ro/Lo=n.sup.2. [1+{Id/(md.multidot.rd.sup.2)}] to reduce rotational fluctuations. In this way, the effect of manufacturing defects and dimensional variations due to wear on rotational fluctuations is reduced.