Is the fuel supply method of the engine multi point EFI good? Or is it better to inject directly in

The biggest advantage of the direct injection design of the fuel supply system is that the fuel is directly injected into the combustion chamber at a very high pressure, so in addition to the structure and position of the fuel injector are different from the traditional oil supply system, the atomization and mixing efficiency of oil and gas is also more excellent. Compared to the 6-cylinder and 4-cylinder cars, the 6-cylinder car works more stably, and if there are two cars in the same price range, such as the Teana and the Accord, I personally recommend that you consider the Nissan Teana first, the Teana is more cost-effective.

Hope mine is helpful to you.

The direct injection engine is fuel-efficient, the oil is all burned in the cylinder, and it can exert 100% power, but the oil requirements are extremely harsh.

The fuel saving effect of direct injection in the cylinder is very obvious at medium and low speeds, but the requirements for oil products are very high, and it is still more troublesome to use in the case of obvious poor fuel quality in China. The effect of multi-point EFI is almost fuel-saving, but the stability and reliability are good. Advanced is not necessarily suitable.

Hello, the direct injection in the cylinder is good, the reason is stronger power, fuel saving, and environmental protection. The more the technology is developed, it must be advanced, thank you for your attention to Yiche.

Hello, it's better to direct injection in the cylinder, I hope it can help you!

Multi-point fuel injection has strong explosive power.

Direct injection has better fuel utilization than multi-point EFI! Burn completely! Exhaust emissions are good! Theoretically, it has no effect on dynamics! However, direct injection is more fuel-efficient than more electric injection!

It can't be said that the horsepower is bigger, and the advantage of multi-point spraying is that the gasoline is more reasonably distributed to each cylinder, and the combustion is more sufficient, so the fuel consumption will be relatively reduced.

The direct injection of waste oil, the engine power is slightly larger than that of multi-point EFI, and the multi-power of oil injection must be larger, and the better point of multi-point EFI. ^_

Summary. Hello, dear. Here are the answers to your questions:

Engine direct injection will be better: 1. Multi-point injection and direct injection belong to gasoline electronic injection engines, but the injection control is very different, multi-point injection belongs to ordinary control, and the oil and gas in the cylinder enter the combustion chamber after mixing; 2. Direct fuel injection is a new technology in recent years, which directly injects fuel into the cylinder to form a mixture during combustion; 3. This kind of fuel control is more accurate, and the power loss is also smaller. However, the requirements for oil are very high, and it generally needs to be used with additives.

It is better to supply more oil and electric injection or direct injection.

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Hello, dear. The following answers are given to you to the questions you inquire: direct engine injection will be better:

1. Multi-point injection and direct injection belong to gasoline electronic injection engines, but the injection control is very different, multi-point injection belongs to ordinary control, and the oil and gas in the cylinder enter the combustion chamber after mixing; 2. Direct fuel injection is a new technology in recent years, which directly injects fuel into the cylinder to form a mixture during combustion; 3. This kind of fuel control is more accurate, and the power loss is also smaller. However, the requirements for oil are very high, and it generally needs to be used with additives.

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Direct injection is good. Differences between direct-injection and EFI engines:

Throttle opening control is different.

The direct-injection engine is controlled by the speed, and the throttle opening knob is manually controlled and the power mode switch is manually selected to control the opening of the throttle, and the overall structure is relatively simple. Then, according to the driver's operation idea, the computer ECU determines an optimal throttle opening position (i.e., the optimal speed value of the engine) according to different power modes and working modes, load conditions and operating conditions.

The disadvantage is that because the running speed of diesel engine is very high, its fuel injection time is very short, only a few thousandths of a second, and the pressure of the high-pressure oil pipe everywhere changes with the change of time and position in the injection process, and because of the compressibility of diesel fuel and the pressure change fluctuation of diesel oil in the high-pressure oil pipe, just make the actual fuel injection state and the plunger fuel supply law that the fuel injection pump stipulates are very different. We know that secondary fuel injection is not fully burned, so we increase the emissions of hydrocarbons and smoke, which increases fuel consumption.

Engines with high-pressure common rail technology usually do not mention how many grams of oil are sprayed per second, and are generally expressed as how many milliliters are sprayed per cycle.

Direct injection is also a kind of electric injection, the full name is called direct injection in the cylinder. The representatives of direct injection include Volkswagen's TSI, TFSI, and GM's SIDI. In-cylinder direct injection engines are more likely to produce carbon deposits than traditional EFI engines, and car owners need to use the most expensive in-cylinder direct injection engine special additives to solve the problem of carbon deposition.