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High -pressure common rail ? What is the hell of the high -voltage common rail fuel system?
has an opportunity to turn on the "God Perspective" to see the common rail system . Do you want it?
"Want!" ... It seems that Xiaobian guessed that Victoria's hearts have gone ~
will talk to you today about the ghost of high -pressure co -track?
"High pressure" refers to fuel injection system pressure than diesel engine
is 3 times higher, up to 200 MPA
, and traditional diesel oil injection pressure is 60 — 70 MPA
"common rail" is through public oil supply pipes At the same time, the fuel jet mouth
fuel injection volume is accurately calculated by ECU, and at the same time, it provides fuel with the same quality and the same pressure on each fuel jet mouth
to makeeven more Pingshun, thereby optimizing the comprehensive performance of diesel engine
and traditional diesel engine Each cylinder is not consistent with the amount and pressure of each cylinder of oil injection
, and the uneven operation
causes unstable combustion, high noise, high fuel 3
diesel engine development experience The experience is that develops from mechanical control to electronic control.
's traditional diesel engine is a direct -injection, synthetic pump, and mechanical control fuel system engine
. The new diesel engine currently is a direct injection, high -voltage rail, and electronic control fuel system engine.
high -voltage co -track fuel system has only electronic control methods.
mechanical control method is difficult to achieve precise control over high -voltage co -fuel fuel systems.
traditional diesel engine fuel system
high -pressure co -rail working principle
high -pressure oil pump sent the fuel to the common rail through high oil pipe,
co -track pressure signal was passed to ECU
and then ECU transport the signal to the electromagnetic electromagnetic of the high -pressure oil pump
controls the control of common rail pressure
high -pressure fuel in
through high -pressure oil pipe . The signal from the ECU controls the opening time of
each cylinder injector and the length of the opening time.
ECU collects various information at any time at any time. Control of working conditions.
Electric Control High -Voltage Diesel engine fuel fuel system
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