The 3X spark plug delivers better ignition and faster burn rate, and creates higher pressure while the ECU ignition control advance becomes smaller.
The New SX Spark Plug
SGT introduced a new line of spark plugs after more than millions being tested — the innovative 3X spark plug. It is engineered with a 45-degree angle that the company tested to be the best angle to improve combustion efficiency. With a faster flame speed – 5 to 15 per cent faster than the conventional spark plug – the 3X spark plug is said to ensure complete burning of every drop of fuel, leaving almost no carbon deposits in the engine combustion chamber. Other gains include fuel consumption being reduced by 10 to 20 per cent and power increased by 10 to 20 per cent with more than 20 to 50-per cent drop in emission.
In short, the 3X spark plug delivers better ignition and faster burn rate, and creates higher pressure while the ECU ignition control advance becomes smaller. Thus, by applying a similar pressure on the accelerator pedal, SGT’s lab tests showed the torque output to be stronger, the acceleration faster along with the vehicle’s speed. The car feels more powerful without having to step on the accelerator too hard as the engine becomes more responsive.
SGT has been exploring the design and different types of spark plugs since the 80-90s. To enhance ignition performance and increase the life span of spark plugs, SGT uses precious metals such as platinum, iridium and Yttrium in the electrode to improve the ignition system structure. These metals have very high melting points; for instance, platinum’s melting point is 2042k and iridium is 2716k. By blending with rhodium or palladium, the combined metal alloy provides high resistance to chemical corrosion. They are used to make a fine electrode of 0.2mm diameter, sintered to the insulator’s ignition end or made into a wafer of 0.4 to 0.8mm diameter, or laser welded to the front end of the centre electrode and working face of the sidewall electrode. These electrodes deliver a strong discharge and are ignitable at a lower voltage while the spark gap could be increased up to 1.1 to 1.5mm.
Precious metals change the qualitative performance of a spark plug: the high corrosion resistance electrode made from precious metals remains unchanged; in the 160,000km test in which the IRtwin Twin Iridium electrode spark gap was only increased by 0.05mm. This ensures the stability of ignition voltage value, contributing to the stable operation of a vehicle’s engine.
They are suitable for cold starts. Their point discharge enables easy ignition and enhances engine operating performance at low speeds. They also reduce the heat absorption of electrode and flame, increasing ignition capacity. Fine electrode expands the gap surrounding space, increasing the accessibility of engine gas mixing to ensure a complete combustion and lower emission.
Compared to single and multiple electrodes, the main advantage of a platinum/Iridium spark plug is not to increase the ignition capacity but to improve durability. The lifespan of an Iridium spark plug is longer than the nickel alloy spark plug and it is suitable for a harsh operating environment while providing a stable operation for a high performance engine.
SGT推出创新3X火花塞
在经过了上百万次的测试后，SGT推出全新系列的火花塞—3X火花塞。该火花塞拥有独一无二的三极45度火焰设计，据该公司表示经过他们的测试，这是改善燃烧效率的最佳角度。据悉，3X火花塞的燃烧速度比传统火花塞快5至15%，通过每一滴汽油的彻底燃耗，解决汽油燃烧不充分的问题，让汽车发动机燃烧室内几乎没有积碳。其他的好处包括使汽车油耗降低了约10至20%，动力提升10至20%，废弃排放降低超过20至50%。
简而言之，3X火花塞提供最佳的燃烧、燃烧速度快、缸压变大，ECU控制点火提前角变小。因此，若以原先的脚力去踩油门，SGT的实验室测试显示因为扭矩变大的原因，车速和加速的速度就会超过原来。这意味着车辆更有力了，无需太用力踩油门，因为引擎变灵敏了！
SGT自80-90年代以来，就不断地探索新的火花塞造型和样式。为了加强点火性能和使用寿命，SGT开始采用贵金属（铂、铱、钇等）。将其用于电极并相应改进发火端的结构。贵金属具有极高的熔点，比如说铂金熔点2042K，而铱金熔点为2716K。 加进某些元素如铑、钯之后，具有极高的抗化学腐蚀能力。将其制成细电极（直径0.2mm），直接烧结与绝缘体发火端中，或以直径为0.4 至0.8mm的圆片用激光焊接于中心电极前端和侧电极的工作面。这种电极具有强烈的尖端放电效应，在电压相对较低时也能点火，其火花间隙可加大至1.1至1.5mm。
贵金属使火花塞的性能发生了质的变化：电极的高抗蚀性能够保持火花间隙长期不变（在16万公里试验中，IRtwin Twin铱电极火花间隙仅增大0.05mm），使点火电压值稳定，发动机工作平稳。火花塞使用过程中无需调整修正火花间隙。
它们适宜于冷态启动。由于尖端放电，点火容易，提高了发动机低速工况下的性能。它们还可减少电极的吸热和消焰作用，增强火花能量。细小的电极使间隙周围的空间扩大，增加了混合气的可达性，使燃烧更充分，排放更低。
与单极和多级的区别不同, 铂金/铱火花塞最主要的优点并不是提高点火能量，而是提高耐久性。铱火花塞的使用寿命比镍合金的长得多，适合更恶劣的工作环境，对于高性能发动机而言，它能更持久稳定的工作。
