Maximum–Conjugacy Gearing

Gear tooth characteristics that minimize noise excitation are identified, and a new “Maximum-Conjugacy” tooth form is described that employs these characteristics to reduce gear noise excitation to approximately 15% of that of conventional gearing. Kinematic action, relative torque capacity, and comparative manufacturing costs are discussed. Noise reductions obtained from employing the new gearing in the timing train of a small diesel engine are evaluated for the full range of engine speeds.