Back and forth motion type of the internal engine with the separ
Coaxial pump and motor cylinder engine
Fuel injection means for internal combustion engines
Internal combustion engine and method of enhancing engine...
Liquid pump driven by a two-cycle, dual piston internal combusti
Multi-chamber internal combustion engine
Steam enhanced double piston cycle engine
Two stroke engine having reduced height pistons
Two-cycle engine and compressor
Two-cycle engine and compressor
Two-cycle internal combustion engine
Two-cycle internal combustion engine
Two-cycle, dual piston internal combustion engine with air turbi
Two-stroke cycle engine having linear gear drive
Two-stroke engine