Patent ID: 11970958
Assignee: BORGWARNER INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A method of reducing engagement noise in a chain drive or belt drive for an internal combustion engine having a crankshaft having a driving sprocket and at least one driven shaft having at least a first driven sprocket, comprising the steps of:
determining external excitations within the chain drive to determine engine cycle orders at which tensions occur;
converting engine cycle orders at which tensions are prevalent to sprocket orders;
determining sprocket orders which are non-prevalent;
determining a number of non-prevalent order sprockets for the chain drive or belt drive;
determining a unique set of non-prevalent orders to be incorporated into each of the number of non-prevalent order sprockets determined for the chain drive or belt drive, such that no non-prevalent order sprocket has the same engine cycle orders;
incorporating a unique set of at least one non-prevalent order into a radial variation pattern of a sprocket for each of the non-prevalent order sprockets; and
installing the non-prevalent order sprockets in the chain drive or belt drive of the internal combustion engine.