Spark ignition engine, controller for use in the engine,...

Details Spark ignition engine, controller for use in the engine,... Spark ignition engine, controller for use in the engine,...

2008-04-08

2008-04-08

Solis, Erick (Department: 3747)

Internal-combustion engines

High tension ignition system

Having a specific ignition coil

C123S637000, C123S640000

Reexamination Certificate

active

07353813

ABSTRACT:
An engine generating two or more ignition sparks by the same spark plug, which can avoid a torque reduction caused by misfire of main ignition, can start firing and burning at proper timing depending on operating conditions, and can reduce misfires. A novel controller and a novel ignition coil adapted for realizing that engine are also provided. One spark plug and at least one ignition coil are provided per cylinder. When performing a plurality of ignitions during the compression stroke in the cylinder, before main ignition to start firing and burning at proper timing depending on operating conditions of the engine, preliminary pre-ignition is performed to form a fire seed around the spark plug. The main ignition is then performed to cause main burning. Misfire is avoided, appropriate torque can be generated, and combustion stability can be improved.

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European Search Report dated Oct. 31, 2007 (Five (5) Pages).

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