Internal-combustion engines – Combustion chamber means combined with air-fuel mixture...
Patent
1990-06-05
1991-07-02
Argenbright, Tony M.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
123425, F02P 5155
Patent
active
050277723
ABSTRACT:
The generation of knocking in an engine is controlled by an engine knock control system, which comprises circuit such as a magneto for generating a reference signal in synchronous with a rotation of the engine and an ignition circuit responsive to the reference signal for controlling electric supply to an ignition coil of the engine to ignite the engine. The control system further includes an ignition control circuit for maintaining an ignition timing to a second angle retarded with respect to the reference from the reference signal generating circuit when the knocking in the engine is detected by the knock sensor and for returning the ignition timing to a first angle corresponding to the reference signal when the temperature of the engine becomes below a predetermined temperature. For this purpose, the ignition control circuit is composed of a temperature discriminating circuit connected to a temperature sensor for detecting an engine temperature, a knock detecting circuit connected to the knock sensor for detecting knocking in the engine, and a switching circuit connected to the reference signal generating circuit and the ignition circuit.
REFERENCES:
patent: 4005688 (1977-02-01), Kawai et al.
patent: 4117820 (1978-10-01), Kashiwazaki et al.
patent: 4458646 (1984-07-01), Suzuki et al.
patent: 4856481 (1989-08-01), Kamise et al.
Argenbright Tony M.
Fuji Jukogyo Kabushiki Kaisha
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