ignition

1g’n1fon. the prece or action of igniting or being set on fire; a kindling; specifically, the 1gnitrng of the mrxture of air and hydrocarbon in the cylinder of an internal-combustion eng in, causing the gaseous mixture to expand and thus produce motion, hotztube ignition, 1gnition in an imternalecombustion eng in by means of compre ing the explosiv gaseous mixture thru a tube which is kept het by an external flame. jump-spark ignition, a form of electrze ignition, mn an mnternalzcombustion eng in, which utilizes a spark which is made to jump between the gap-terminals of the secondary circurt of an induction-ceil. makezandzbreak ignition, a form of electyre ignition, in an internalzccombustion eng in, which utilizes a spark in a primary circurt which is made and broken mechanically or magnetically.