초록 ▼

Disclosed herein is an internal combustion engine including a mechanism for providing a potential capable of producing a spark when applied to a spark plug, first and second trigger means respectively and selectively operable for applying the potential to the spark plug to produce a spark at a norma

Disclosed herein is an internal combustion engine including a mechanism for providing a potential capable of producing a spark when applied to a spark plug, first and second trigger means respectively and selectively operable for applying the potential to the spark plug to produce a spark at a normal timing relative to top dead center and at a retarded timing relative to top dead center, and a switch connected to the first trigger means and operable in response to engine rotation above a given speed for interrupting the operation of the first trigger means so as to change the timing of sparking operation from the normal timing to the retarded timing.

대표청구항 ▼

An internal combustion engine including means comprising a relatively rotatable magnet and coil means for providing a potential capable of producing a spark when applied to a spark plug, means selectively operable for applying said potential to a spark plug to selectively produce sparks at a normal

An internal combustion engine including means comprising a relatively rotatable magnet and coil means for providing a potential capable of producing a spark when applied to a spark plug, means selectively operable for applying said potential to a spark plug to selectively produce sparks at a normal and retarded timing relative to top dead center and comprising said rotatable magnet, first trigger means mounted adjacent to said magnet for generating a first signal which is effective to cause sparking operating at a normal timing, second trigger means mounted adjacent to said magnet in spaced relation to said first trigger means and operable to generate a second signal which is effective, when said first signal is disabled, to cause sparking operation at a retarded timing, and means operable in response to engine rotation above a given speed for operating said selectively operable means to change the timing of sparking operation from said normal timing to said retarded timing, said means for operating said selectively operable means to change the timing of sparking operation comprising switch means coupled to said first trigger means and operative to interrupt operation of said first trigger signal to cause sparking operation, and means for operating said switch means including a member movable between a first position which is inoperative to actuate said switch means and a second position which is operative to actuate said switch means so as to disable said first signal from causing sparking operation.