Pre-chambered type spark plug with pre-chamber entirely below a bottom surface of a cylinder head

摘要: The present spark plug is of the encapsulated design and facilitates life plug, enhances combustion process reduces emissions. position an ignition chamber substantially within a engine. configuration parabolic end forms chamber, heat transferred to increases plug. or makes manufacturing less costly by using one single orifice plurality orifices positioned at in preestablished manner. will reduce eliminate pre-ignition other detonation problems enabling timing be advanced further reducing