FIELD: engineering of vehicle energy supplies, for automobiles in particular.
SUBSTANCE: in accordance to invention, mounted between walls of plug well and ignition coil mounted in well is screen, provided (with forming of open circular coil) with through recess, extending from end of screen positioned on the side of spark plug to the end of screen opposite relatively to spark plug. Screen is made perforated by a set of through slits, positioned in parallel to longitudinal geometrical axis of screen. Minimal width of any one of slits is selected so that its opposite edges do not contact each other during radial forming of screen, value of interval between screen slits equals from 1 to 3 of values of slit width, while maximal length of slit is less than length of screen generatrix.
EFFECT: decreased electric capacity introduced to electric contour of ignition coil, without substantially increasing radio interference emitted from radiation object and, as a result, improved energetic parameters thereof.
2 dwg
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