136491 ⎘
Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby Adaptations for driving vehicles, e.g. locomotives
Sub-classes:Solid-liquid phase change driven heat engine via hydraulic oil power generation
#2Pressure controlled hydraulic engine
#3System economically using compressed air as an automobile power source and method thereof
#4Hybrid pneumatic regenerative system for railway vehicles
#5Drive assembly with pressure force aggregating piston arrangement for hydraulic motor speed/torque selector
#6Thermal engine using noncombustible fuels for powering transport vehicles and other uses
#7Natural Gas-Steam Powered Automotive Vehicle
#8Locomotive apparatus
#9Laser powered, air breathing, open-cycle heat engines