Patent ID: 6258004
Filing Date: 2001-07-10
Classification: F16H

Abstract:
A constant output transmission apparatus receiving a continuously variable power inlet source that is transferred to a constant power outlet source, comprising:a) an input drive and gear shaft assembly including an input shaft member connected to and driven by a variable power inlet source, said input shaft member connected to an input gear drive assembly and an input carrier plate assembly;b) a first planetary gear set assembly including a sun gear member rotatably mounted about said input shaft member, input planet gear members rotatably connected to said input carrier plate assembly and driven by said sun gear member and a ring gear member engageable with and driven by said input planet gear members;c) a second planetary gear set assembly including said sun gear member, output planet gear members rotatably connected to said ring gear member and driven by said sun gear member, and an output ring gear member driven by said output planet gear member;d) an output shaft member connected to and driven by said output ring gear member at a constant predetermined RPM; ande) a low range viscous clutch means having 1) a first portion connected to and driven by said input shaft member; 2) a second portion connected to and driven with said sun gear member; and 3) a clutch piston operable to achieve engagement between said first portion to said second portion to rotate said sun gear member, said first planetary gear set assembly, second planetary gear set means, and said assembly shaft member at the constant predetermined RPM.