precombustion chamber
technology
Quick Summary
A precombustion chamber is a small, auxiliary space within an engine where combustible gases are ignited to start combustion ahead of the main combustion chamber. In a precombustion engine, a portion of the fuel-air mixture ignites in this chamber, which then ignites the rest of the charge in the main cylinder. This technology was first documented in 1914. In some engines, a glow plug within the precombustion chamber heats up when energized, further aiding the ignition of the compressed air-fuel mixture.12
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