External-internal rotary combustion engine

Fluid transfer in reciprocating devices

Four stroke continuous cycle radial piston engine

Four-cycle rotary engine and method of operation therefor

Four-stroke radial-piston engine

Fuel feed of rotary cylinder combustion engines

Fuel-injected piston combustion engine

Homogeneous charge compression ignition engine with...

Hybrid piston/rotary engine

Infinite loop engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine and operating cycle

Internal combustion engine and operating cycle

Internal combustion engine and operating cycle

Internal combustion engine having a rotating piston assembly

Internal combustion engine having non-aligned pistons mounted on