Patent ID: 9182015
Filing Date: 2015-11-10
Classification: F02B,F16H

Abstract:
1. A tensioning device for a traction mechanism drive of an internal combustion engine having a drive wheel arranged on a drive shaft of an auxiliary device, one or more additional driving wheels and a continuously revolving traction element which wraps around the drive wheel and the additional driving wheels, the tensioning device comprises two tensioning arms, having tensioning wheels which are mounted thereon and apply tensioning force to the traction element in front of and behind the drive wheel in a direction of revolution, a spring, which generates the tensioning force, and a tensioner housing pivotally mounted about an axis of the drive shaft of the auxiliary device, the tensioner housing movably supports only one of the tensioning arms subjected to a force of the spring, and the other one of the tensioning arms is fastened to the tensioner housing, the movably mounted tensioning arm has a circular-arc-shaped bearing portion, the spring is configured as a bow spring, and the tensioner housing has a correspondingly circular-arc-shaped duct, in which the bearing portion of the tensioning arm and the bow spring are movably accommodated on the circular arc.