Speed reducers-increasers

摘要

Prime movers such as steam-organic engines, gas turbines, Stirling engines, and piston engines were designed for peak efficiency at specific operating parameters. Gear systems are used to reduce or increase the output speed of the prime mover to the speed requirement of the driven machine, at the operational load. The configurations of gear systems discussed include: (1) Horizontal parallel-shaft offset; (2) Horizontal parallel-shaft in-line; (3) Horizontal right angle; (4) Vertical right angle; and (5) Epicyclic.