دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: on an engine, one of usually several spring-loaded, lightweight metal plates placed over openings in the engines crankcase. Oxygen in the air entering the base of an engine mixes with the oil there. A hot spot could cause the oil and oxygen to explode and damage the crank- case. To prevent such damage, the spring- operated explosion covers (doors) open to release the pressure from the explosion. They then slam closed to prevent more air from entering. Also called explosion cover.