IGNITION COIL

• Main Authors: HIRAYAMA IKUO, IWAMI ATSUSHI, MATSUBAYASHI SHUICHI, MORIMOTO TAKESHI
• Format: Patent
• Language: English
• Published: 13.11.2008
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; COMBUSTION ENGINES; ELECTRICITY; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TRANSFORMERS; WEAPONS

PROBLEM TO BE SOLVED: To provide an ignition coil of two-point ignition method, in which a distance between two plug holes is set to be small and the two plug holes are formed in appropriate positions. SOLUTION: The ignition coil 1 has a coil part 11, in which a primary coil 21, secondary coils 22A, 22B wound in directions reverse to each other, and a soft magnetic core 4 are housed in a coil case 3. A first plug installation part 12A electrically connecting the first secondary coil 22A to a first spark plug 8A is disposed to one end side D1 in an axial direction of the coil part 11. A conduction cable 34 electrically connected to the second secondary coil 22B is drawn from the other end side D2 in the axial direction of the coil part 11, and a second plug installation part 12B electrically connecting the conduction cable 34 to a second spark plug 8B is disposed to a tip part of the conduction cable 34. The coil part 11 of the ignition coil 1 is vertically disposed to the outside of a first plug hole 911A. COPYRIGHT: (C)2009,JPO&INPIT