FUEL INJECTOR & FUEL PUMP:
OVERVIEW:
The Pump which pumps the fuel directly from the fuel tank to the fuel injector with required pressure known as Fuel Pump. Which is controlled by the ECU. The fuel injector is a device that has an "N" number of holes depends on vehicle type, which is used to finely inject the fuel inside the engine to get the optimum efficiency/performance outside of the engine. To get better mileage, precision response when accelerating we used to tune the fuel injector. Most of the fuel injectors cannot be tuned. Company ECU sticks to the norms and they give feedback or response as per the accelerator response. Example: If we maintain the engine rpm below 7000 RPM on all gears you get optimum mileage. If performance is required we have to rev the engine for more than 7000 RPM.
ELECTRONIC CONTROL UNIT(ECU)
NOTE:
When the RPM is more than 7000RPM bike gives more speed, reduced mileage, and is fun to ride
Company explanation:
"The sensors that gather information on the engine’s operation, and b) the fuel supply system that supplies gasoline, have both been designed to be lightweight and simple. The sensor component uses only 4 sensors (Red blinking points) to gather large amounts of information relating to engine operations, which is sent to a small 26-pin ECU, which in turn calculates the optimum fuel supply. The fuel supply component consists of a small, fuel pump, modularized regulator and filter, and a small injector, all of which come together to enable a lightweight, compact form. The injector injects a finely atomized spray of fuel through 6 hole type injectors.
To maximize the efficiency of the fuel injector, which injects the optimum amount of fuel for different amounts of intake air, YZF-R15 version 2.0 is equipped with a large 3-liter air cleaner. The duct area of the intake duct was designed optimally to optimize the flow of intake air.
Additionally, the use of a 4-valve combustion chamber (a combustion chamber with 2 intake and exhaust valves each) has allowed designers to layout the spark plug at the center of the combustion chamber for better flame propagation. This also increases the total valve area relative to the 2-valve chambers for improved intake/exhaust efficiency (volumetric efficiency). YZF-R15 version 2.0 is fitted with a hemispherical 4-valve combustion chamber, a configuration that allows intake and exhaust valves to be laid out in the smallest size possible.
In addition, the intake and exhaust valve angles have been kept small to achieve optimum combustion chamber configuration. We also aimed at minimizing the surface area/volume ratio (S/V ratio) in the combustion chamber, which is key to improving fuel efficiency. In conjunction with the fuel injection system, this combustion chamber contributes to comfortable riding during long-distance rides as well as during medium to high-speed riding.
YZF-R15 version 2.0’s engine delivers an excellent response, fuel economy, is environmentally friendly and a comfortable ride."
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