Crank damper pulley structure for the internal combustion engine of a car
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsNoriyuki Ichikawa, Tetsushi Suzuki, Tomiaki Atsumi
Life of this patent
Estimating the term…
Abstract
A crank damper pulley structure of an internal combustion engine of a car in which the hub of a pulley, which is removably fixed to the tip of the engine crank shaft and transmits power to auxiliary machinery, such as an alternator, has therearound a damper mass and a damper rubber comprising a torsional damper. The hub has a cavity therein which opens to one end of the hub. A damper support is fixed in the cavity and a ring-like damper and a ring-like damper mass are superposed axially with the rubber being fixed to the mass and the support in order to constitute a ring-like dynamic damper disposed in the cavity which copes with bending vibration of the crank shaft.
Claims16
In a crank damper pulley structure for an internal combustion engine having a crank shaft to the tip of which is fixed a pulley hub having a generally circular coaxial cavity in one end thereof, the improvement comprising:
- a damper support fixed to the interior peripheral surface of said cavity and having a flange extending radially inward at a substantially right angle to the hub axis;
- and
- a ring-like damper rubber fixed coaxially to one end of a ring-like damper mass, both comprising a dynamic damper, disposed coaxially in said cavity with said rubber fixed to said flange.
Dependencies are inferred from the claim text.