Patent ID: 9670832
Date: 2017-06-06
CPC Classifications: F02B,F16H,Y02T

Claim:
1. A planetary traction drive for a super-turbocharger that is both mechanically driven by an engine system and driven by exhaust gases from said engine system comprising: a turbo shaft; a turbine connected to one end of said turbo shaft; a compressor connected to an opposite end of said turbo shaft; a first slanted traction surface formed on said turbo shaft, said first slanted traction surface slanted at a first angle in a first direction; a second slanted traction surface formed on said turbo shaft, said second slanted traction surface slanted at a second angle, said second angle being substantially equal to and in an opposite direction of said first angle; at least one double roller planet having a first roller and a second roller, said first roller having a first roller outer traction surface that engages said first slanted traction surface of said turbo shaft to form a first roller-shaft traction interface, said second roller having a second roller outer traction surface that engages said second slanted traction surface of said turbo shaft to form a second roller-shaft traction interface between said second roller and said turbo shaft, said first roller-shaft traction interface and said second roller-shaft traction interface locating said turbo shaft axially and creating axial forces on said turbo shaft that counteract thrust forces generated in an axial direction on said turbo shaft.