136401 ⎘
Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by two or more curved surfaces, e.g. for two or more pistons in one cylinder
MULTI-STAGE SYSTEM
#2Opposed piston engine
#3Gas or fluid driven mechanical stepper motor
#4Opposed piston engine
#5RECIPROCATING ENGINE
#6Internal combustion engine
#7Compact non-vibrating endothermic engine
#8Axial piston internal combustion engine using an Atkinson cycle
#9Cam engine
#10CRANKLESS ENGINE
#11Co-axial crankless engine
#12Rotary piston machine