A high-frequency high-energy spark discharge ignition device

A spark discharge and ignition device technology, which is applied in the direction of spark ignition controllers, capacitive energy storage devices, and other devices, can solve the problems of low frequency of engine cycle discharge, poor controllability of discharge time, and insufficient energy of ignition devices, etc. , to achieve the effects of improving fuel economy, increasing ignition energy, and increasing lean burn limit

Active Publication Date: 2021-09-24
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above-mentioned defects of the prior art, the technical problems to be solved by the present invention are insufficient energy of the ignition device, poor controllability of the discharge time, and low discharge frequency of a single engine cycle

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  • A high-frequency high-energy spark discharge ignition device
  • A high-frequency high-energy spark discharge ignition device

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Embodiment Construction

[0026] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0027] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0028] like figure 1 As shown, a high-frequency high-energy spark discharge ignition device includes a low-voltage vehicle power s...

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Abstract

The invention discloses a high-frequency and high-energy spark discharge ignition device, which belongs to the technical field of ignition engines. The invention includes a low-voltage on-board power supply, a control module, a high-frequency discharge module, a high-energy supplementary module and a spark plug; the low-voltage on-board power supply provides power supply for the entire system; the control module includes the logic allocation of the control signals of the high-frequency discharge control module and the high-energy supplementary module , to achieve precise control of discharge frequency and discharge duration; the high-frequency discharge module includes a first capacitor, a second capacitor and a high-voltage coil for providing high-frequency breakdown voltage; the first input end of the high-voltage coil is connected to the first capacitor discharge ignition output end, The first output end of the high-voltage coil is connected to the ground wire, the second input end of the high-voltage coil is connected to the output end of the high-voltage coil, and the second output end of the high-voltage coil is connected to the spark plug and the high-energy supplementary module. The invention is applied to the ignition of an ignition type engine, improves the energy of the ignition device, and precisely controls the discharge frequency and the discharge duration.

Description

technical field [0001] The invention relates to the technical field of ignition engines, in particular to a high-frequency high-energy spark discharge ignition device. Background technique [0002] In order to further improve the emission performance and economic performance of ignition (gasoline) engines, lean combustion and exhaust gas recirculation combustion are the key technical directions of future engine combustion systems. With the expansion of the combustion limit, the engine appears partial combustion or even flameout, resulting in a serious decline in the combustion stability of the engine. Secondly, lean combustion and exhaust gas recirculation combustion often accelerate the flame propagation by enhancing the velocity of the airflow inside the combustion chamber, so it has a serious impact on the effect of the ignition system. [0003] There are many kinds of ignition methods, currently popular ignition methods include Transistor Controlled ignition (TCI), Capa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02P3/08
CPCF02P3/0876
Inventor 李雪松许敏叶昌徐宏昌胥浩天
Owner SHANGHAI JIAOTONG UNIV
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