Rocket effect sparking plug
Rotary combustion engine with oppositely rotating discs
Rotary pistons
Rotary valve with facility for stratified combustion in the inte
Self-heating ignition plug
Self-igniting internal combustion engine
Self-igniting internal combustion engine with a rotationally sym
Self-igniting, mixture-compressing internal combustion...
Separately ignited internal combustion engine with at least one
Shape of combustion chamber for direct-injection diesel engine
Six-cycle engine
Small-dimension two or four stroke vehicle engine with...
Spark ignited internal combustion engine
Spark ignited internal combustion engine and manufacturing...
Spark ignition direct injection engine with oval fuel spray...
Spark ignition engine
Spark ignition engine with a fuel injector for injecting fuel di
Spark ignition engine with cylinder head combustion chamber
Spark ignition internal combustion engine
Spark ignition modifier module and method