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An enhanced discharge igniter for a marine large-bore gas engine

A gas engine, large bore technology, applied in engine ignition, spark ignition controller, engine components, etc., can solve problems such as the inability to meet the high energy and high reliability requirements of marine gas engines, improve ignition stability, discharge Ability enhancement effect

Active Publication Date: 2017-10-31
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of spark plug for vehicles cannot meet the high energy and high reliability requirements of marine gas engines.

Method used

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  • An enhanced discharge igniter for a marine large-bore gas engine
  • An enhanced discharge igniter for a marine large-bore gas engine
  • An enhanced discharge igniter for a marine large-bore gas engine

Examples

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Effect test

Embodiment Construction

[0018] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0019] combine figure 1 -3. The enhanced discharge igniter for a marine large-bore gas engine of the present invention includes a wire nut 1, an insulator 2, an upper gasket 3, a metal shell 4, a wire screw 5, a lower gasket 6, a center electrode 7, a sealing gasket 8, The side electrode 9 and the open retaining spring 10 constitute. The metal shell 4 and the center electrode 7 are separated by the insulator 2. There are two threads on the outer surface of the metal shell 4. One thread is used to install the enhanced discharge ignition on the engine cylinder head, and the other thread is used to fix the side electrode. 9. The side electrodes 9 and the metal shell 4 are independent of each other, which can ensure the maintainability of the electrodes. The side surface of the side electrode 9 is processed with a positioning hole 13 with an internal thread, and th...

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Abstract

The invention aims to provide an enhanced discharge igniter for a marine large-bore gas engine. The enhanced discharge igniter comprises a wiring nut, an insulator, a metal casing, a wiring screw, a central electrode and a side electrode, wherein the metal casing is isolated from the central electrode by the insulator; the central electrode is arranged in a central hole of the insulator through threads and is in tight contact with the wiring screw; the side electrode and the metal casing are independent of each other; the side electrode is arranged on the metal casing through threads; each of the side electrode and the central electrode is provided with a first-order discharge electrode and a second-order discharge electrode; in addition, each of the first-order discharge side electrode and the second-order discharge side electrode of the side electrode is provided with a plurality of secondary electrodes; the plurality of secondary electrodes respectively form discharge circuits with secondary electrodes of the first-order discharge central electrode and the second-stage discharge central electrode of the central electrode. According to the enhanced discharge igniter provided by the invention, the ignition stability of the marine gas engine is improved under lean burn conditions, cyclical variation is reduced, and fuel economy and emission performance of the engine are improved.

Description

technical field [0001] The invention relates to an engine igniter, in particular to an igniter for a marine gas engine with a large bore. Background technique [0002] At present, energy shortage and environmental pollution have become the bottleneck problems restricting my country's economic and social development. The development and utilization of clean petroleum alternative energy has become one of the important technical ways to effectively solve the current problems recognized by the world. Natural gas, with its advantages of abundant resources and clean combustion, has become the most realistic and feasible solution to replace oil. [0003] Natural gas was first promoted and applied in gas engines for vehicles, but it has just begun to be piloted and planned to be promoted in the fields of ships and water transportation. Ship power is mainly diesel engines, and there is a big gap between the technical level of marine diesel engines and vehicle engines. my country ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T13/20H01T13/22H01T13/34F02P15/00
CPCF02P15/00H01T13/20H01T13/22H01T13/34
Inventor 王立媛杨立平宋恩哲姚崇马修真
Owner HARBIN ENG UNIV
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