How to pick up nozzles

How to pick up nozzles

The fuel atomizer implies the electromagnetic valve with special electronic control. In turn, the electromagnetic valve is activated by means of signal which passes with the engine from the control unit. At the same time the valve opens, and at this time fuel passes directly through nozzle.

Instruction

1. Pick up fuel atomizers per the necessary volume of fuel which they will be able to give in one minute. All nozzles are made for giving of certain size of fuel. At the same time fuel usage, as a rule, is defined in cubic centimeters in minute and is set at certain fuel pressure feeds. In turn, the fuel regulator and also the fuel pump in fuel system are responsible for creation of pressure. The majority of various modern pumps creates pressure approximately equal to 3 bars under normal conditions. Therefore many producers of nozzles make the nozzles calculated on such pressure.

2. Learn what fuel quantity the nozzle will be able to give per unit of time. Producers of fuel atomizers specify these data at sale. These data represent 100% of operating cycles, that is the nozzle abroach will give such fuel quantity. Unfortunately, set of fuel atomizers will not be able simply to work more than 90% in operating cycle. It occurs because certain period on closing and also time between impulses is required. At the same time, than the term at which this nozzle will be open is more, to that its work will become less reliable.

3. Pay attention when choosing nozzles, to their performance. For this purpose use indicator of the specific efficiency defining fuel usage. Its size can be determined from the relation of fuel quantity which is consumed by the engine to the power created by it. This indicator reflects fuel usage measure when functioning the engine in brake backing plate at the specific power. It is measured in cubic units of fuel which is spent in one hour for unit of the having power. At the same time for engines with function of turbo-supercharging of value of similar indicator are in certain interval of kg/kWh: 0.309-0.401.

Author: «MirrorInfo» Dream Team


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