ELEMENTS & DELIVERY VALVES

ELEMENTSThe function of the element is to meter and deliver the metered fuel. Element consists of barrel and plungers.The rotary motion of the plunger inside the barrel regulates the quantity of fuel and an upward motiondelivers the fuel. The plunger is precisely fitted to the barrel with very small clearance to form a perfectsealing. They should be replaced as a set. (barrel and plunger) DELIVERY VALVES Delivery valve has the following functions : 1. To assist in the rapid built of pressure in the injection line. 2. To cut of the flow of fuel at the termination of fuel injection pulse. They are seated on top of the element.

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