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Spark plug

A technology of spark plugs and ignition coils, applied in the field of spark plugs, can solve the problems of limited size optimization of spark plug installation holes, etc., and achieve the effects of optimizing design space, reasonable structural design, and reducing layout space

Inactive Publication Date: 2019-12-17
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution still requires a larger sleeve to install the spark plug, and the optimization of the size of the spark plug installation hole is limited.

Method used

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[0034] The ceramic body of the spark plug wraps the wiring screw, the resistance sealing material and the center electrode (the wiring screw, the resistance sealing material and the center electrode are closely connected in sequence), the upper part of the ceramic body is hollow designed to make the wiring screw sink, and the iron shell of the spark plug is designed from the lower welding side The electrode has a spark plug mounting thread on the outer side of the lower part, which is matched with the cylinder head through the mounting thread; the iron shell of the spark plug extends upwards to the ceramic body, and the upper iron shell of the ceramic body is designed as a circle, with an inverted hexagonal or flower shape inside, and the ceramic body passes through The inner gasket is fixed and sealed twice. Cooperate with the ignition coil, the ignition coil sheath is inserted into the center of the ceramic body of the spark plug, and the high-voltage energy is transmitted th...

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Abstract

The invention discloses a spark plug comprising an ignition coil sheath, a spark plug iron shell, a spark plug ceramic body, a spark plug wiring screw rod, an ignition coil connecting rod spring, a spark plug center electrode and a spark plug side electrode. The spark plug wiring screw rod and the spark plug center electrode are arranged in the spark plug ceramic body. The spark plug side electrode is arranged on one end of the spark plug iron shell. The spark plug also comprises an ignition coil metal connecting rod which is arranged in the ignition coil sheath. The ignition coil sheath is arranged in the spark plug ceramic body. The spark plug wiring screw rod and the ignition coil metal connecting rod in the spark plug ceramic body are connected through the ignition coil connecting rodspring. The spark plug ceramic body is wrapped in the spark plug iron shell, and the other end of the spark plug iron shell is provided with an internal corner structure or an internal tooth structureconvenient for rotation of the spark plug iron shell. The optimization of reducing the installation boundary of the spark plug can be realized and the arrangement space of the spark plug can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a spark plug. Background technique [0002] The engine ignition system is one of the important systems of the engine. Maintaining efficient and stable ignition is an important guarantee for the stable output of the engine performance. The ignition system is generally composed of an ignition coil and a spark plug. The working principle of the spark plug: the ignition coil receives and executes the signal sent by the ECU, converts the low-voltage energy of the generator and the battery into a quantitative high-voltage energy, and breaks down the gap of the spark plug at the accurate ignition moment to generate an electric spark, releases the ignition energy, and ignites the compression of the gas mixture. [0003] With the application of the direct injection in the engine cylinder and the mid-mounted fuel injector, the layout space of the top surface of the combustion chamber on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T13/02H01T13/04H01T13/06H01T13/08H01T13/20H01T13/44
CPCH01T13/02H01T13/04H01T13/06H01T13/08H01T13/20H01T13/44
Inventor 高继亮俞京徐茂生
Owner CHERY AUTOMOBILE CO LTD
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