Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1980-12-03
1982-12-21
Chatmon, Jr., Saxfield
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
123169MG, 123608, 123620, 123621, 315171, 315176, H05B 3702, H05B 3904, H05B 4136
Patent
active
043651860
ABSTRACT:
An ignition system (51-59, 60, Ql, Qn, 30) providing high modulation energy by means of modulator (30) is used to fire an igniter and effect total fuel burning without detonation. An extremely long ignition arc is initiated at an optimum timing angle (.theta..degree.) in advance of top dead center piston position. Such long arc with its high energy content makes possible an ignited fuel nodule of increased size within the combustion chamber of the engine. The increased fuel nodule size makes possible efficient engine operation at the variety of cylinder pressures and the variety of ignition voltages usable to ignite the fuel. These long arcs may be sustained over a large range of duty cycle periods of ignition electrical power by modulation of transient current feeding the igniter.
REFERENCES:
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patent: 3974412 (1976-08-01), Pratt, Jr.
patent: 4033316 (1977-07-01), Birchenough
patent: 4041922 (1977-08-01), Abe et al.
patent: 4087719 (1978-05-01), Pratt, Jr.
patent: 4122816 (1978-10-01), Fitzgerald et al.
patent: 4136301 (1979-01-01), Shimojo et al.
patent: 4265201 (1981-05-01), Gerry
patent: 4317068 (1982-02-01), Ward et al.
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