Patent ID: 7658679
Filing Date: 2010-02-09
Classification: F16F,F16H

Abstract:
1. A torque converter damper comprising: a) an input device for connection to an engine; b) a first spring set having drive springs with drive spring first and second ends; c) a second spring set having secondary springs with secondary spring first and second ends; d) a third spring set having parallel springs with parallel spring first and second ends e) a floating apparatus free to move with an applied spring pressure p; and f) an output device; springs of said first spring set being compressible in a forward direction toward said output device as a result of torque applied to the input device and compressible in a reverse direction toward said input device as a result of torque applied by the output device; said first and second spring sets being in series between the input apparatus and output devices during a first forward compression of the first spring set; said first and second spring sets being in series between the input apparatus and output apparatus and said series being in parallel with said third spring set between the input apparatus and output apparatus during a second forward intermediate compression of said first spring set; and said first spring set being in parallel with said third spring set between the input apparatus and output apparatus during a third forward compression of the first spring set, said floating apparatus being between said input apparatus and said output apparatus and interposed at least between springs of said first and second spring sets during the first forward compression of said first spring set so as to pass a portion of torque applied by said input apparatus to said first spring set, to said second spring set that in turn passes a portion of said applied torque to said output apparatus.