CARA KERJA SISTEM BAHAN BAKAR MESIN DIESEL

Summary

In this video, the host explains the workings of the Inline type diesel fuel system, focusing on its main components and functions. The system features a range of essential parts including the fuel tank, feed pump, priming pump, fuel filter, water sedimenter, and the injection pump assembly. The injection pump is crucial for delivering high-pressure fuel to injectors, which regulate fuel spraying based on engine speed. The video also covers additional components such as the governor, delivery valve, and plunger, all contributing to the engine's efficiency. The presenter aims to provide a clear and engaging explanation of how this diesel system operates.

Takeaways

• 😀 The Inline type diesel fuel system is one of the three main diesel fuel systems, alongside the distributor type and common-rail type.
• 😀 The primary components of the Inline type diesel fuel system include the fuel tank, fuel distributor, feed pump, and priming pump.
• 😀 The fuel tank stores diesel or biodiesel, and the fuel distributor moves fuel to the feed pump, which operates at 1.8–2.2 kg per square centimeter pressure.
• 😀 The priming pump helps remove air bubbles trapped in the fuel line, ensuring smooth fuel flow in the system.
• 😀 The fuel filter cleans the fuel of dirt, while the water sedimenter removes water from the diesel, as water has a higher density than diesel.
• 😀 The injection pump assembly operates at a high pressure of around 110 kg per square centimeter to push fuel to the injectors.
• 😀 The delivery hose channels high-pressure fuel from the injection pump to the injectors, ensuring efficient fuel distribution.
• 😀 The injection nozzle sprays fuel into the combustion chamber based on the engine speed, adjusting the amount of fuel injected accordingly.
• 😀 Additional components like the plunger spring, governor, and control lever help regulate engine speed and manage fuel injection.
• 😀 The script promises a second part where the functioning of the Inline type diesel fuel system will be explained in more detail.

Q & A

What are the three types of diesel fuel systems mentioned in the script?

The three types of diesel fuel systems are the Inline type, the Distributor type, and the Common-rail type.

What is the primary function of the injection pump in the Inline type diesel fuel system?

The injection pump in the Inline type diesel fuel system is responsible for pumping fuel into high pressure (approximately 110 kg per square centimeter), which is then forwarded to each injector.

How does the fuel flow in the Inline type diesel system from the fuel tank to the engine?

Fuel flows from the fuel tank through the fuel distributor (violin), the feed pump, the priming pump, the fuel filter, and water sedimenter, before being pumped at high pressure by the injection pump to the injectors.

What is the role of the water sedimenter in the Inline type diesel system?

The water sedimenter filters water from the fuel. Since water has a higher density than diesel, it settles at the bottom and is removed from the system.

How does the injector nozzle function in the Inline type diesel fuel system?

The injector nozzle sprays fuel into the combustion chamber at varying amounts, depending on the engine speed. The amount sprayed is low at low speeds, moderate at medium speeds, and high at high speeds.

What is the purpose of the governor in the Inline type diesel system?

The governor regulates the engine speed by controlling the amount of fuel injected based on the gas pedal's position, ensuring the engine maintains the desired speed.

What is the function of the plunger in the injection pump?

The plunger in the injection pump moves up and down, regulating the amount of diesel injected into the engine based on the engine's speed.

How does the centrifugal force affect the governor in the Inline type diesel system?

The centrifugal force causes the flyweight inside the governor to spin faster, which throws it outward. This action adjusts the fuel delivery to the injectors, thereby controlling engine speed.

What role does the delivery valve play in the Inline type diesel system?

The delivery valve controls the passage of high-pressure diesel fuel from the injection pump to the injector, ensuring the right amount of fuel reaches the combustion chamber.

How is the speed of the engine adjusted in the Inline type diesel system?

The speed of the engine is adjusted by the governor, which controls the amount of fuel injected into the engine based on the throttle's input, thereby regulating engine speed from low to high.