Ignition coil assembly with extension for electrical connection of an ignition plug

An ignition coil assembly with extension for electrical connection of an ignition plug of an endothermic engine,

• wherein said extension (10) comprises an essentially tubular hollow body (11), which is secured to a container (C) containing the electrical/electronic means of the ignition coil for generation of a high voltage electrical energy to transmit to an ignition plug (P) for the triggering of sparks secured to the engine block of said engine,
• a first end area (10.1) of said tubular body (11) is engaged, in a detachable manner, on the free end of said ignition plug, and
• electrical connection means (10.26, 20, 10.36), provided for the transmission of the high voltage electrical energy between said electrical/electronic means of the ignition coil and said ignition plug, are contained in said tubular body (11),
• wherein said means for electrical connection (10.26, 20, 10.36) comprise at least one filter means (20) of the high frequency electromagnetic disturbances produced by the operation of said coil, a winding of electrically conductive wire surrounds a central core (20.3) in ferromagnetic material dispersed in a polymer base and at least one spring in good electrically conductive material (10.26, 10.36) is arranged and said tubular body (11) comprises three contiguous axial areas:
• a first end area (10.1) having an axial through cavity (10.11), in which the free end of said ignition plug is engaged;
• a second end area (10.3), having an axial through cavity (10.34) and which is secured to said container containing the electrical/electronic means of said ignition coil, and
• an intermediate area (10.2), having an intermediate axial through cavity (10.21);
• wherein said three axial cavities (10.11, 10.21, 10.34) form a single continuous axial through cavity and said at least one filter means (20) is permanently housed in at least one of said axial cavities (10.11, 10.21, 10.34).

An ignition coil assembly with extension for electrical connection of an ignition plug of an endothermic engine,

• wherein said extension (10) comprises an essentially tubular hollow body (11), which is secured to a container (C) containing the electrical/electronic means of the ignition coil for generation of a high voltage electrical energy to transmit to an ignition plug (P) for the triggering of sparks secured to the engine block of said engine,
• a first end area (10.1) of said tubular body (11) is engaged, in a detachable manner, on the free end of said ignition plug, and
• electrical connection means (10.26, 20, 10.36), provided for the transmission of the high voltage electrical energy between said electrical/electronic means of the ignition coil and said ignition plug, are contained in said tubular body (11),
• wherein said means for electrical connection (10.26, 20, 10.36) comprise at least one filter means (20) of the high frequency electromagnetic disturbances produced by the operation of said coil, a winding of electrically conductive wire surrounds a central core (20.3) in ferromagnetic material dispersed in a polymer base and at least one spring in good electrically conductive material (10.26, 10.36) is arranged and said hollow tubular body (11) of said extension (10) is elastically flexible and said at least one filter means (20) is elastically flexible.