[특허]Optimized high power high energy ignition system

Optimized high power high energy ignition system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02P-003/06
출원번호	US-0148555 (1993-11-08)
발명자 / 주소	Ward Michael A. V. (Lexington MA)
출원인 / 주소	Combustion Electromagnetics, Inc. (Arlington MA 02)
인용정보	피인용 횟수 : 79 인용 특허 : 0

초록 ▼

A high power high energy ignition system for internal combustion engines using an energy storage capacitor (4), resonating inductor (3) and one or more coils Ti with switches Si for each coil Ti. The system is designed and optimized according to the transient voltage doubling formulation and certain coil magnetic flux formulations to produce a very high power, very high energy, high efficiency ignition powered and controlled by a power converter (14) and controller (15) to produce an initial high frequency spark pulse followed by moderate firing longer duration spark pulses or continuously firing spark oscillations for delivery to the air-fuel mixture of an engine with total spark energy approximately independent of engine speed. The energy is delivered by means of a toroidal gapped spark plug (46) with extended electrodes (48a) to maximize ignition kernel size and minimize spark plug erosion and fouling.

대표청구항 ▼

In a high power high energy ignition system for internal combustion engines including at least one energy storage and discharge capacitor C, at least one resonating inductor of inductance Le, one or more ignition coils Ti of primary turns Np, secondary turns Ns, and turns ratio N, where i=1, 2, 3 , . . . , and each coil Ti having a coil primary current switch means Si, and each coil having its high voltage secondary winding connected to a spark plug, the system constructed and arranged according to the transient voltage doubling formulation with doubling factor DF equal to [(N**2)*C2/C], where C2 is the coil output capacitance, and magnetic flux formulations derived from Maxwell\s equations to produce very high power high energy high efficiency ignition powered by an electrical power source for supplying power to the ignition system by charging up said capacitor C, the ignition firing controlled by an ignition controller to produce ignition sparks by discharging said capacitor C through actuation of said switch means Si, the improvement wherein said system is constructed and arranged: a) to provide, under normal operating conditions of the engine, ignition spark energy characterized by higher spark frequency and spark power during the early part of the sparking phase or spark duration to enable reduced size of the ignition coils Ti and to provide energy which changes slowly relative to engine speed, and b) to provide overall system optimization: (i) with doubling factor DF less than 0.4, and (ii) with coil core saturation flux density at normal operating temperatures to correspond approximately to the open circuit peak magnetic flux density B2[x(t0)]whose open circuit phase angle x(t0) is approximately 155 degrees at the peak of the secondary high voltage V2(0).

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Optimized high power high energy ignition system 원문보기

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Optimized high power high energy ignition system 원문보기

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이 특허를 인용한 특허 (79)

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