136666 ⎘
Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
Sub-classes:Single unit compact Rotary Combustion engine and Electric motor
#2Rankine cycle device, expansion system and expansion machine
#3Expander for recovery of thermal energy from a fluid
#4Oscillating piston engine
#5Expander
#6Integrated fuel delivery system