Eaton Char-Lynn Motor – In-Cylinder Direct Injection Motor: Features
The Eaton Char-lynn Motor evaluates the advantages and disadvantages of the direct injection motor and its impact on the car.
advantage
The advantage of the direct injection gasoline motor in the cylinder is that the fuel consumption is low and the power is increased.
The air-fuel ratio is 40:1 (the air-fuel ratio of a typical gasoline motor is 14.7:1), which is what people call “lean burn”.
The top of the piston inside the machine is spherical and the other half is the wall. After the air is rushed in from the valve, a vortex motion is formed under the compression of the piston. When the compression stroke is about to end, the fuel injection nozzle at the top of the combustion chamber begins to spray. Gasoline and air form a mixture under the action of vortex motion. This rapidly rotating mixture is hierarchical, and the closer it is to the spark plug, the easier it is to ignite.
With a compression ratio of up to 12, the power and torque are increased by 10% compared to a normal motor of the same displacement.
The biggest advantage of the oil supply system using the in-cylinder direct injection design is that the fuel is injected directly into the combustion chamber at very high pressure, so the structure and position of the injector are different from the traditional oil supply system in the atomization of oil and gas. And the mixing efficiency is also superior. In addition, the control technology of various electronic systems in the car has been greatly improved recently, and the computer has become more precise in the interpretation and control of the intake air volume and fuel injection timing. Therefore, the direct injection technology in the upper cylinder is used to greatly improve the combustion efficiency of the motor. In addition to the motor to generate more power, it also has positive help for environmental protection and energy conservation.
Disadvantage
However, in-cylinder direct injection technology is not invincible, because from the economic point of view, the oil supply system using direct injection in the cylinder has to spend more cost in the development process. For the owner, the spark plug needs to be replaced more frequently than the traditional EFI vehicle. And other parts.
The fuel quality requirements are relatively high, requiring the use of higher-grade fuel, which invisibly increases the cost of the owner’s vehicle.
In-cylinder direct injection motors are more prone to carbon deposits than conventional EFI motors, and owners need to use expensive in-cylinder direct injection motor-specific additives to solve the carbon footprint problem.
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