Eaton Char-Lynn Motor : Performance Of Small Displacement Motors
The small-displacement supercharged motor replaces the large-displacement motor with the speed of lightning, and the motor of 2.0L or above is the “large displacement” in the moment. More and more vehicles are merged into small-displacement motors. The camp, the two advantages of low fuel consumption and high displacement standards contributed to this situation. The Eaton Char-lynn Motor illustrates the double-edged sword performance of a small displacement motor.
Strictly speaking, the appearance of a small-displacement motor does make the car feel better. Under the driving of a small inertia turbine, it solves the problem of low-torque shortage before, and the wider torque platform allows the small-displacement motor to have Better power output range, and in addition to more direct power performance, a small displacement motor means lower fuel consumption, and a smaller cylinder displacement results in less fuel injection, although with the help of a turbine With more air intake and fuel injection, the overall fuel consumption is more economical than the single injection volume of a large displacement motor.
In the years of crazy development of small displacement motors, direct injection in the cylinder, variable oil pump, low friction rolling technology have improved the working efficiency of the whole machine. In the current era of small displacement motors, the thermal efficiency has become The advantages of machine propaganda, for example, Chery's small displacement motor thermal efficiency can reach 37.1%, the long safety new NE platform product thermal efficiency is up to 40%, Toyota small displacement motor can reach 41%, these higher efficiency is before Large displacement motors can't match.
The small displacement motor uses high speed and high technology for lower fuel consumption and good power performance. This is an undeniable disadvantage in the environment, but the nature of the double-edged sword makes it less traditional in terms of maintenance and stability. The large displacement naturally aspirated motor.
For maintenance alone, the 1.5T motor requires more than a full-scale synthetic and semi-synthetic motor oil, and the maintenance mileage is greatly shortened. If the 2.0L motor requires 200 yuan of ordinary motor oil, then The 1.5T motor requires 400 yuan of fully synthetic motor oil, and the number of kilometers will be reduced by about 30%.
Moreover, there is a certain gap between the motor stability and the naturally aspirated motor. For the naturally aspirated motor, because of the assisted driving of the turbine, the turbine of a thousand degrees will greatly increase the temperature of the motor compartment, and the safety hazard will follow. Increasingly, many vehicles are not ignited by the high temperature of the turbine after the collision, and because the oil consumption is also larger.
The small displacement motor is an industry trend. The higher thermal efficiency and better use experience solve the problem of high fuel consumption of the large displacement motor, but the maintenance cost will increase, and the uncertainty will also be Upgrade. Strictly speaking, small displacements are fuel-efficient but not worry-free, while saving fuel but not saving money.
