Apparatus for damping of flywheel

Abstract

An apparatus for damping of a flywheel, which is configured so that a second mass may rotate in a direction for offsetting torsional vibration of an engine transmitted to a first mass through a damping spring. The apparatus includes: guides disposed between damping springs and guiding the damping springs extending/contracting in a rotational direction by a damping operation; and a third mass arranged coaxially with the second mass, with one end connected to the guide, and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the second mass.

What is claimed is: 
     
         1 . An apparatus for damping of a flywheel, which is configured so that a second mass may rotate in a direction for offsetting torsional vibration of an engine transmitted to a first mass through a damping spring, the apparatus comprising:
 a guide disposed between damping springs and guiding the damping springs extending/contracting in a rotational direction by a damping operation; and   a third mass arranged coaxially with the second mass, with one end connected to the guide, and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the second mass.   
     
     
         2 . An apparatus for damping of a flywheel, comprising:
 a first mass connected with an engine and rotated by power from the engine;   a second mass arranged coaxially with the first mass and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the first mass;   damping springs disposed between the first mass and the second mass, and providing an elastic force against the relative rotational displacement between the first mass and the second mass;   a guide disposed between the damping springs and guiding the damping springs extending/contracting in a rotational direction by a damping operation; and   a third mass arranged coaxially with the second mass, with one end connected to the guide, and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the second mass.   
     
     
         3 . An apparatus for damping of a flywheel, which is configured so that a second mass may rotate in a direction for offsetting torsional vibration of an engine transmitted to a first mass through a first damping spring, the apparatus comprising:
 a guide disposed between first damping springs and guiding the first damping springs extending/contracting in a rotational direction by a damping operation;   a third mass arranged coaxially with the second mass, with one end connected to the guide, and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the second mass; and   a second damping spring disposed between the third mass and the guide, and providing an elastic force against the relative rotational displacement between the third mass and the guide.   
     
     
         4 . An apparatus for damping of a flywheel, comprising:
 a first mass connected with an engine and rotated by power from the engine;   a second mass arranged coaxially with the first mass and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the first mass;   first damping springs disposed between the first mass and the second mass, and providing an elastic force against the relative rotational displacement between the first mass and the second mass;   a guide disposed between the first damping springs and guiding the first damping springs extending/contracting in a rotational direction by a damping operation;   a third mass arranged coaxially with the second mass, with one end connected to the guide, and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the second mass; and   a second damping spring disposed between the third mass and the guide, and providing an elastic force against the relative rotational displacement between the third mass and the guide.   
     
     
         5 . The apparatus of  claim 1 , wherein the third mass is formed in the shape of a disk and mounted to one side of the second mass. 
     
     
         6 . The apparatus of  claim 3 , wherein a damping space is formed inside the guide,
 a guide protrusion is formed at an end of the third mass, and   both ends of the second damping spring are connected to inner sides of the guide protrusion and the damping space, respectively.   
     
     
         7 . The apparatus of  claim 6 , further comprising plural second damping springs, wherein a second damping spring is disposed on both sides of the guide protrusion. 
     
     
         8 . The apparatus of  claim 3 , wherein the third mass is formed in the shape of a disk and mounted to one side of the second mass.