Characteristics And Maintenance Of Spark Plug
Although the gasoline engine spark plug on a small annex
, but it is the heart of gasoline, said its obvious importance. Spark plug has been the emergence of hundreds of years. Gasoline is only used for the first spark plug, is satisfied by the way the French in 1860 by successfully developed. Currently, the world production of spark plug, as many as 400 kinds of the species.
Spark plug primary function is to produce gasoline engine ignition system, high voltage pulse through the spark plug electrode gap, into the engine cylinder spark to ignite the combustible mixture, thus promoting the piston to the engine running.
The thermal characteristics of spark plug is its heat resistance, that resistance to early flammable and durability. It tends to be used "cold type" and "hot type" to qualitative description, the quantitative description of the use of the "heating value" concept.
Some spark plug heat absorption capacity, heat slowly, less heat, so skirt high temperature spark plug, spark plug such as "hot type" spark plug. In contrast, less endothermic, heat transfer speed for maximum heat dissipation of the spark plug, the temperature of the lower skirt. This spark plug is called "cold type" spark plug.
Spark plug heat value actually means it absorbs heat, thermal conductivity and heat of comprehensive ability. Is relatively thermal characteristics of value to the spark plug, cold, hot out of state, said quantitative, to determine the order of spark plug and the level of thermal characteristics. Cold type spark plug heat value is high, and heat and low heat value of spark plug.
Calorific value is determined according to a series of specialized tests to the same test methods have comparable heating value determination.
Spark plug repair and maintenance is important to note the following.
First of all, keep the spark plug insulators must be clean and dry. Dust, oil and other deposits on the insulator, easy to form the external leakage shunt, affecting the normal spark plug flash over. Ningbo Berda Control Cable was founded in 1995, specializes in manufacturing all kinds of control cable and spark plug for motorcycles, boats, body-building facilities..If re-coated with water droplets and moisture, the more exacerbated the harm. Therefore, in use should always use a clean cotton wipe spark plug insulator.
Second, when the engine is running or repair, paying particular attention to not hit the spark plug insulator, in order to damage from impact, affecting the normal work. When the spark plug on the plug or remove the high voltage connector, do not too much force, so as not to shake the spark plug insulator, the destruction of their sealing or cause damage to spark plug.
Also, spark plug working for some time, the skirt with the combustion products of the sediment layer, the electrode erosion occurs, carbon deposition may occur in some spark plug or oil and so on. In order to maintain normal spark plug to work, should be periodically necessary maintenance.
Finally to note that more coke and slag accumulation spark plug, generally the first place soaked in gasoline, and then scrape with a metal scraper coke, slag accumulation and other deposits, and finally cleaned with a dry brush. Avoid burning and grilled with way to remove carbon deposition to prevent heat damage to the local spark plug. Do not use wire scrub brush to prevent the insulator skirt left metal traces, caused by the leakage current to spark plug does not work.
by: yu
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