JAC VVT Engine Instruction

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* What is VVT Technology?


VVT is the short name of Variable Valve Timing, that’s improving power of the engine performance fuel economy by adjust the timing of valve’s closure according to the different working conditions

JAC VVT Engine Structure

* VVT Engine’s feature:

1. Low fuel consumption , 2 Powerful, 3, environmental protection

* JAC J3 VVT engine Feature

 1. Low fuel consumption , 2 Powerful, 3, environmental protection, 4, lightweight,5 low noise, 6, high stability

* JAC VVT Engine and Mitsubishi 4A9 comparison

The features of the engine is mainly based on its technology, specifications, the main spec are depended on its design, power consumption, torque and Fuel Economy

JAC VVT Engine on JAC J3

 4A904A91JAC J3 VVTJAC J5 VVT
Displacement1.3L1.5L13L1.5
cylinder bore(mm)75 
Travel(mm)75.484.875.484.8
Compression ratio10.510.5
Valve gearDOHC 4 Valve+MIVECDOHC 4 Valve+VVT
Cam drivecycle chaintiming chain
C/B materialaluminumaluminium magnesium alloy
Moveabilitylight weight,Low-friction designlight weight, Low-friction design
Intake manifoldResin(Optimal design of the airway)Resin
Cylinder-head coverResinResin
Cylinder cushionThe latest sealing structure technology  1 layer 
exhaust systemThe inverted type engine vehicle rear exhaustThe inverted type engine vehicle rear exhaust
Max Power(kW/rpm)73/600083/600073/600083//6000
Max Torque(Nm/rpm)126/4000147/4000126/4500126/4000
Power per liter(kW/L)56.255.456.255.4
Emission standardChina IV(= Euro4)

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