Retractable noise suppressor for jet engines
Retractible air inlet screen for aircraft gas turbines
Retro mechanical, post mechanical and bi mechanical drive...
Retrofit of simple cycle gas turbines for compressed air...
Retrofit system for electrical power generating stations and...
Retrograde injection power engine
Reverse rotation engine
Reversible gas turbine gearbox
Reversible internal combustion engine
Reversible thrust ducted fan propulsion unit
Reversible two-stroke engine
Revolution controller for a continously variable transmission
Rewind starting device for outboard motors
Rich catalytic clean burn for liquid fuel with fuel...
Rigid primer bulb pump
Ring combustion chamber with ring burner for gas turbines
Road and engine speed governor with power demand control
Road load modulated exhaust gas recirculation system
Road speed control
Road speed regulating governor