System for the reversible transformation of a reciprocating motion in a rotary motion

Cam-driven radial rotary engine incorporating an HCCI apparatus

PISTON DRIVE DEVICE

System for the reversible transformation of a reciprocating motion in a rotary motion

Offset rotational internal combustion engine with centrifugal gasoline pressure

Engine compressor unit

Gas flow and energy conversion apparatus

Hybrid drive system for a motor vehicle, and method of operating a motor vehicle

Systems and methods for purge and PCV control

Seal assembly for rotary-piston internal-combustion engine

Offset rotational internal combustion engine

Cam engine

Rotary piston internal combustion engine

Rotating and reciprocating piston device

Rotary piston engine with L-shaped piston and cylinder

PhanNam Engine

Counterpoise engine

Rotary piston engine

Sorrels engine

Rotor-piston internal combustion engine

Single-ended barrel engine with double-ended, double roller pistons

Radial compression-ignition engine

Dual piston rotary engine

Retro mechanical post mechanical and bi-mechanical traction engines

Rotational engine structure

Rotary combustion engine with lateral thrust between opposing and engaging combustion flywheels

Single-ended barrel engine with double-ended, double roller pistons

Rotary cylinder fluid pressure machine

Stotler variable displacement radial rotary piston engine

Rotary engine