Course Content
Layout of Car & Working of a Car
1. Layout of Car 2. Working of Car
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Different Terms Used In Automobile
Here we will know about the terms and defination related to automobile industry.
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All About Automobile Engineering [Fundamental Course]
About Lesson

1. Engine :-


The engine is considered the heart of your car. It creates the force needed to turn your vehicle’s wheels, propelling it forward, achieving this by converting the heat from burning gas.

Though this sounds simple, the task the engine performs is actually quite complex. It needs to be strong enough to handle the immense load. Fortunately, many types of engines are available, each featuring different structures that determine how efficient they function. Additionally, drivers have the option of modifying their engine’s performance further.

Brief Summary Of Your Engine’s Auto Parts

To give you a better understanding of how your vehicle’s engine functions, here is a summary of some of its parts, along with the role they play.

  1. Connecting Rod:- It is used to connect the piston and crack shaft of the engine. Due to connecting rod, reciprocating motion the piston transfer the rotary motion to crankshaft.


2. Piston :-  In most internal combustion engines, pistons are responsible for compressing air and gas inside a cylinder, pushing them down to drive the engine’s crankshaft via the connecting rod.


3. Crankshaft: Attached to the pistons through the connecting rod and connected to the flywheel, the crankshaft utilizes rod bearings to rotate.


4. Flywheel: This device is responsible for storing rotational energy, providing power transfer between your vehicle’s engine and its transmission. The rotational energy the flywheel offers is essential in keeping the engine running. If that wasn’t enough, the flywheel is also responsible for switching the engine on via the starter ring.


5. Cylinder and Cylinder Head: The cylinder is the space in which the pistons travel. Cylinder heads (heads) are found on top of the cylinder block. Their primary role is to close the cylinder and keep the pressure contained in the combustion chamber.

Usually, this is where you will find the spark plugs, valves, and fuel injectors mounted. As the fuel injectors spray fuel into the combustion chamber, the spark plugs deliver the spark that burns the air/fuel mix. The valves, meanwhile, are responsible for controlling the air/fuel mix flow.


6. Camshaft: A cam is a teardrop-shaped object responsible for opening the valves at different times during the combustion process. The camshaft is what the cam is mounted on.


7. Intake and Exhaust Manifold: Also known as the inlet manifold, the intake manifold is the part of the engine responsible for supplying the air/fuel mixture to the engine’s cylinders. On the other hand, the exhaust manifold’s main job is to collect the exhaust gasses from the multiple cylinders that internal combustion engines have, guiding these gasses to a single pipe.


8. Carburetor: Though most modern engines do not have this part since they use fuel injection, the engines in older vehicle models come with a carburetor, a component responsible for mixing the fuel and air.


9. Throttle Body: While modern engines lack carburetors, they have a throttle body that controls the amount of air that goes into the engine. In doing so, the part controls how much fuel the engine burns. You can directly control the throttle body using the car’s accelerator or throttle pedal.


2. Alternator

The alternator is an essential part of your vehicle. Though most people credit the battery for powering the car’s electrical parts, the alternator is the primary component behind this functionality.

Alternators are often placed in front or beside your vehicle’s engine since that is where it gets its mechanical power from. They are responsible for generating the electric power that charges the battery while the engine is running. It also supplies this electrical power to certain vehicle mechanisms.


3. Battery

Your battery is another vital part your vehicle needs to run, enabling all your vehicle’s electrical components to function correctly.

In the past, most components in a car were manual, making batteries pointless. However, modern technology has made them crucial.

Modern batteries don’t have a very complex structure. Most are simply wet cell batteries with six cells. However, various types of batteries are available, each type offering unique advantages.


4. Radiator

With your radiator responsible for keeping your engine cool when it is running, it goes a long way in ensuring your vehicle is operating efficiently. A malfunctioning radiator can result in a damaged engine due to overheating.

The radiator consists of several essential parts, including the transmission cooler, core, pressure cap, inlet, and outlet tank. These parts work to keep your engine cool by absorbing the heat from the liquid and gas that enter the engine. The heat the radiator absorbs is then sent outside the vehicle.


5. Muffler

The muffler is a part of your car’s exhaust system positioned at the rear bottom of your vehicle to reduce engine noise and dampen emissions.

While its functionality is straightforward, the science behind it can be a bit complex. When the exhaust valve opens, it releases burnt gasses into the exhaust system. These burnt gasses create a powerful sound wave which the muffler lowers before releasing it outside.

Most mufflers are often made using steel with aluminum coating, making them strong enough to withstand vast amounts of heat.


6. Catalytic Converter

Due to the engine process, your vehicle’s exhaust gas contains nitrogen dioxide, carbon monoxide, hydrocarbons, and nitric oxide. The catalytic converter uses chemical processes to convert these emissions into water vapor and carbon dioxide.


7. Transmission

Your vehicle’s transmission refers to its gearbox. However, some consider the term transmission a broader concept encompassing the entire drive train, including the clutch, gearbox, prop shaft, differential, and final drive shaft.

The transmission helps you change your speed and torque with the help of gears and gear trains. It comes with a few gear ratios that enable you to switch between them, depending on the speed variation.


Also, while shifting between gears had to be done manually in previous vehicle models, more and more vehicles today come fitted with automatic transmissions.

8. Axle

The axle is a shaft found underneath your car. It holds the wheels together, enabling them to rotate accordingly. The part also plays a role in carrying the weight of your vehicle.

There are three major types of axles, namely the front axle, rear axle, and stub axle. The front axle keeps your vehicle’s front wheel together while the rear axle joins the rear wheels. The stub axle is responsible for connecting the central axle and the wheels.

The number of axles your car has depends on its size. However, in most cases, the front axle is responsible for responding to the steering wheel’s movements.


9. Fuel Tank

The fuel tank is the storage space for the fuel that helps your vehicle run. Fuel tanks come with an opening through which fuel is inserted. They also have an opening that guides the fuel to the engine.


The size of the tank will vary depending on the size of your car. For instance, compact cars have smaller fuel tanks than other cars. In order to avoid contaminating the fuel, fuel tanks are generally made using a combination of different materials. Doing so also makes the tanks rustproof, further protecting the fuel.

10. Center Console

Your vehicle’s center console is mounted on top of the transmission tunnel, which runs between your vehicle’s centerline. It is where the dashboard begins and is also the standard position of the gear shifter. Center consoles can vary greatly, depending on the vehicle’s make and model. Some center consoles have cubby holes and cup holders, while others control comfort devices and onboard entertainment.


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