Back to results
US 10,309,514 B2Granted
Noise, vibration, and harmonics reducing sprocket technology
AssigneeBorgWarner Inc.
InventorsMatthew W. Crump, John Sarick
Life of this patent
Estimating the term…
Abstract
A number of variations may include a sprocket using one or more slot(s) and/or compressive or elastic material in order to lower the NVH. A number of variations may include a sprocket which isolates the vibrations created by the impact of the chain with the sprocket so that the vibrations are prevented from traveling into the shaft.
Claims3
A product comprising:
- a sprocket having a plurality of teeth formed along a perimeter of a sprocket body;
- the plurality of teeth separated by a plurality of roots along the perimeter of the sprocket body;
- the sprocket body having a bore formed in a center thereof;
- a slot formed through the sprocket body, the slot having a channel portion being defined in-part by a pair of parallel surfaces in the body extending from the root and by a bulbous portion defined by a surface of the body that connects to both of the parallel surfaces, wherein the bulbous portion has a width greater than a width of the channel portion, and further comprising an elastic material received in at least a portion of the slot and wherein the elastic material extends within an entire area of the channel portion and within only a portion of the bulbous portion.
1 more element
A product comprising:
- a sprocket having a plurality of teeth formed along a perimeter of a sprocket body;
- the plurality of teeth, wherein adjacent teeth are separated by a root;
- the sprocket body having a bore formed in a center thereof;
- at least one slot formed in the sprocket, the at least one slot having a channel portion being defined in-part by a pair of parallel surfaces in the body extending from the root and by a bulbous portion defined by a surface of the body that connects to both of the parallel surfaces, and further comprising a compressive or elastic material inserted into the slot, and wherein the compressive or elastic material extends within an entire area of the channel portion and within only a portion of the bulbous portion.
1 more element
Dependencies are inferred from the claim text.