Laser spark plug for combustion engine of motor car, has overflow duct designed such that fluid flow enters into interior of diaphragm, and vortex rotating around vortex axis and comprising component along longitudinal axis of plug

摘要

The plug has a housing (38) including a diaphragm (74) to allow laser radiation into a precombustion chamber (110) that is located at conic tapers of the housing. An overflow duct (120) provides fluid connection between an interior (111) of the precombustion chamber and a combustion chamber surrounding the precombustion chamber. The overflow duct is arranged and designed such that fluid flow is generated and enters into the interior of the diaphragm. A vortex rotates around a vortex axis (WB) and comprises a component along a longitudinal axis (LA) of the laser spark plug.