INTERNAL COMBUSTION ENGINE IGNITION DEVICE

• Main Authors: KAKEHASHI YUICHI, SUGIYAMA MASAYUKI, AYUSAWA TAKUMA, SUZUKI YUSHI
• Format: Patent
• Language: English; French; German
• Published: 10.02.2016
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR; STARTING OF COMBUSTION ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TRANSFORMERS; WEAPONS

This internal combustion engine ignition device, which does not have a battery, is capable of reliably providing ignition from the very start of the rotation of an engine, and prevents the excessive generation of ignition energy. The internal combustion engine ignition device has a core (12), a coil part (L) that is wound over the core, and a secondary coil (L 2 ) that is wound on the outer peripheral side of the coil part. A switching element (Tr) switches an induced current, which is generated via the rotation of a permanent magnet, of a primary coil on and off. A resistor (R 1 ) and a microcomputer (42) are connected to the switching element, and a rotation detection circuit (41) is connected to the microcomputer. The microcomputer drives the switching element so as to rapidly change the current flowing through the primary coil and generate a high voltage in the secondary coil, and generate a spark discharge in a spark plug (22) connected to the secondary coil. In the coil part (L), one coil is divided by an intermediate tap (Tap), forming the primary coil (L 1 ) and a charging coil (L CH ).