Belt drive system
OwnerJuergen Halleninventor
Life of this patent
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Abstract
A belt system comprising a driver pulley, a driven pulley, a belt trained between the driver pulley and the driven pulley, a belt tensioning device engaged with the belt, a first idler engaged with the belt between the driver pulley and the driven pulley, a second idler engaged with the belt, the second idler engaged with the belt span immediately upstream of the driver pulley, the second idler comprising an arm journalled to a base, the arm urged to load the belt by a torsion spring, the arm having an effective length of less than 6 mm, and the torsion spring having a spring rate of approximately 0.128 mm/deg.
Claims7
A belt system comprising:
- a driver pulley;
- a driven pulley;
- a belt trained between the driver pulley and the driven pulley;
- a belt tensioning device engaged with the belt;
- a first idler engaged with the belt between the driver pulley and the driven pulley;
- a second idler engaged with the belt, the second idler engaged with the belt span immediately upstream of the driver pulley;
- the second idler comprising an arm journalled to a base, the arm urged to load the belt by a torsion spring;
- the arm having an effective length of less than 6 mm;
- and
- the torsion spring having a spring rate of approximately 0.128 mm/deg.
A belt system comprising:
- a driver pulley fixed to a crankshaft;
- a driven pulley;
- a belt trained between the driver pulley and the driven pulley;
- a belt tensioning device engaged with the belt on the slack side of the belt with respect to the driver pulley;
- a first idler engaged with the belt between the driver pulley and the driven pulley;
- a second idler engaged with the belt, the second idler engaged with the belt span immediately upstream of the driver pulley;
- the second idler comprising an arm pivotably journalled to a base, the arm urged to load the belt by a torsion spring;
- the arm having an effective length of less than 3.5 mm;
- and
- the torsion spring having a spring rate of greater than 0.128 mm/deg.
A belt system comprising:
- a driver pulley fixed to a crankshaft;
- a driven alternator pulley;
- a belt trained between the driver pulley and the driven alternator pulley;
- a belt tensioning device having a pivot arm, the belt tensioning device engaged with the belt on the slack side of the belt with respect to the driver pulley;
- a first idler engaged with the belt between the belt tensioning device and the driven alternator pulley;
- a second idler engaged with the belt, the second idler engaged with the belt span immediately upstream of the driver pulley;
- the second idler comprising an arm pivotably journalled to a base, the arm urged to load the belt by a torsion spring;
- the arm having an effective length of equal to or less than 3.5 mm;
- and
- the torsion spring having a spring rate of greater than 0.128 mm/deg.
Dependencies are inferred from the claim text.