Mechanical transmission with reduced ratio steps in upper transm

Details Mechanical transmission with reduced ratio steps in upper transm Mechanical transmission with reduced ratio steps in upper transm

1998-11-03

2000-07-11

Marmor, Charles A.

Machine element or mechanism

Gearing

Interchangeably locked

74360, F16H 308

Patent

active

060856068

ABSTRACT:
A mechanical transmission (14) having a plurality of ratios (first-twelfth) and an automated system (10) utilizing same, has an upper group of ratios (seventh-twelfth) having a relatively small average ratio step (13%) compared to the average ratio steps (30%-40%) of comparable transmissions. This allows high-speed operation (35-70 mph) at or very nearing desired engine speed (112), emulating the characteristics of a CVT.

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