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Plasma igniter with inclined air inlet holes and eccentric double-anode structure

A plasma and double anode technology, applied in the directions of plasma, engine ignition, electrical components, etc., can solve the problems of small ignition energy, low ignition energy utilization rate, poor ignition reliability, etc., achieve a wide lean burn limit, improve ionization and Ignition effect, improve combustion effect

Inactive Publication Date: 2019-01-22
DALIAN NATIONALITIES UNIVERSITY
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  • Claims
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Problems solved by technology

[0005] In order to solve the problems of low ignition energy, poor ignition reliability, and low utilization rate of ignition energy when the existing heat balance plasma igniter technical solution is applied to large-space combustion chamber engines and natural gas engines, this application provides a Plasma igniter with inclined hole and eccentric double anode structure

Method used

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  • Plasma igniter with inclined air inlet holes and eccentric double-anode structure
  • Plasma igniter with inclined air inlet holes and eccentric double-anode structure
  • Plasma igniter with inclined air inlet holes and eccentric double-anode structure

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: taking this as an example to further describe and illustrate the present application.

[0020] Such as Figure 1-5 As shown, this embodiment provides a plasma igniter with an air intake slant hole and an eccentric double anode structure, including a short anode, a long anode, an anode insulating positioning sleeve, a ground electrode, an anode insulating positioning sleeve pressing plate, and two anode positioning Bolts; the short anode and the long anode are installed in the anode insulating positioning sleeve respectively, and are respectively fixed on the anode insulating positioning sleeve by the anode positioning bolts, wherein the short anode is completely wrapped by the anode insulating positioning sleeve, and the long anode is a hollow structure, which has A part is wrapped by the anode insulation positioning sleeve; at the lowe...

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Abstract

The invention discloses a plasma igniter with inclined air inlet holes and an eccentric double-anode structure. The plasma igniter with the inclined air inlet holes and the eccentric double-anode structure comprises a short anode, a long anode, an anode insulating positioning sleeve, a grounding electrode, an air inlet a, an air inlet b and the inclined air inlet holes; one end of the upper portion of the grounding electrode is provided with the air inlet a inclined downwards; the air inlet b inclined downwards is formed at the other end of the upper portion of the grounding electrode; the airinlet a and the air inlet b are communicated with an ionization space a; the lower end of the long anode is provided with a plurality of the inclined air inlet holes, which are circumferentially formed and inclined downwards and are used for inletting a small amount of high-activity air formed inside an ionization space b into an air channel. By inletting the small amount of air into the lower anode in a hollow structure, the plasma igniter with the inclined air inlet holes and the eccentric double-anode structure can achieve the effects of cooling down the electrode and disturbing the flowfield of a jet nozzle to improve combustion.

Description

technical field [0001] The invention relates to a plasma igniter, in particular to a plasma igniter with an air inlet oblique hole and an eccentric double anode structure. Background technique [0002] As a clean energy, natural gas has been widely used as engine fuel. In the field of vehicle power, the number of passenger cars and heavy-duty vehicles fueled by CNG is increasing; in the field of ship power, CNG and LNG-powered ships have become the key research direction in the "Made in China 2025" plan. Compared with gasoline, natural gas as a gas fuel requires greater ignition energy, which makes it difficult to use a single spark plug to ignite natural gas even for small-bore vehicle natural gas engines in actual use, so gasoline has to be used to ignite the engine. normal work. This has led to a series of problems such as system complexity, cost increase, and reliability decrease. Therefore, it is necessary to adopt a new ignition technology and adopt a relatively sim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P23/04H05H1/24H05H1/48
CPCF02P23/04H05H1/2406H05H1/48
Inventor 宋鹏
Owner DALIAN NATIONALITIES UNIVERSITY
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