4 Stroke Engine Working | I.C.Engines | 2 Stroke I Four Stoke | Engines Parts | Basics | TE | HPE
4 Stroke Engine Working | I.C.Engines | 2 Stroke I Four Stoke | Engines Parts | Basics | TE | HPE
Hi This is Upendra Kumar Malla. Welcome to my channel .I wanted to provide some basic information about Mechanical engineering and Industrial safety .
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A four-stroke engine, also known as a four-cycle engine, is a type of internal combustion engine commonly used in cars, trucks, motorcycles, and many other applications. It completes a power cycle in four strokes of the piston (two revolutions of the crankshaft). Here is a general overview of how a four-stroke engine works:
Intake Stroke: The first stroke is the intake stroke. As the piston moves downward, it creates a partial vacuum in the cylinder. The intake valve opens, allowing a fuel-air mixture to enter the combustion chamber from the intake manifold. The piston moves downward, drawing in the fresh mixture.
Compression Stroke: Once the piston reaches the bottom of the intake stroke, the intake valve closes. The piston then moves upward, compressing the fuel-air mixture. Both the intake and exhaust valves are closed during this stroke, trapping the mixture in the combustion chamber. The compression increases the pressure and temperature of the mixture.
Power Stroke: At the top of the compression stroke, when the piston is near the top of the cylinder, the spark plug ignites the compressed fuel-air mixture. The ignited mixture rapidly expands, generating high pressure. This pressure pushes the piston downward, creating the power stroke. The power stroke is the working stroke where the engine produces mechanical work to drive the crankshaft.
Exhaust Stroke: After the power stroke, the piston moves upward again. The exhaust valve opens, and the remaining burned gases are expelled from the combustion chamber into the exhaust manifold. The piston moves upward, pushing the exhaust gases out through the open exhaust valve. Towards the end of the exhaust stroke, the exhaust valve closes, and the intake valve begins to open, preparing for the next intake stroke.
The four-stroke engine has separate intake and exhaust valves that are operated by a camshaft. The camshaft controls the opening and closing of the valves at precise timing intervals. The camshaft is driven by the crankshaft through a timing belt or chain.
This four-stroke cycle of intake, compression, power, and exhaust repeats continuously as the engine operates. The engine's rotational motion is transmitted to the crankshaft, which converts the linear motion of the piston into rotary motion. The crankshaft is connected to the transmission or other output devices, which then transfer the power to the wheels, propellers, or other mechanical systems.
The four-stroke engine is known for its efficiency, durability, and relatively low emissions compared to two-stroke engines. It provides a smoother power delivery and better fuel economy. However, it is more complex in design and requires additional components such as valves, camshafts, and timing systems compared to two-stroke engines.
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Пікірлер: 50
Thanks sir it's very useful for me today is my exam
@Upendrakumarmalla
5 ай бұрын
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Telugu lo explain chesinandhuku Tan Q so much Sir
Thanks video 🙏🙏🙏🙏🙏🙏🧐🙏
@Upendrakumarmalla
9 ай бұрын
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Thanks for clarification
@Upendrakumarmalla
2 жыл бұрын
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0:24 Nice information sir
@Upendrakumarmalla
9 ай бұрын
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Excellent explain sir
@Upendrakumarmalla
10 ай бұрын
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Excellent
@Upendrakumarmalla
8 ай бұрын
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Hi
@Upendrakumarmalla
8 ай бұрын
Hi
Thanks sir ❣️
@Upendrakumarmalla
2 жыл бұрын
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Thank u anna
@Upendrakumarmalla
2 жыл бұрын
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Thanks❤
@Upendrakumarmalla
2 жыл бұрын
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thanks sir tqs a lot
@Upendrakumarmalla
2 жыл бұрын
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Sir 3d videos tho cueppandi 😊 English lo chala Baga vunnayi😊bt Telugu lo em levu😊
@Upendrakumarmalla
Жыл бұрын
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Thanks
@Upendrakumarmalla
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Thanks❤🙏 sir
@Upendrakumarmalla
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Sir 😊 TqS 😘
@Upendrakumarmalla
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Good morning sir Sir forced feed system upload cheyandi sir please
@Upendrakumarmalla
Жыл бұрын
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Chala baga chepavu bro
@Upendrakumarmalla
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@Upendrakumarmalla
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@Vaishu_00
Жыл бұрын
@@Upendrakumarmalla okay sir but kaastha thvaraga upload cheyandi sir endukante maaku exams unnai sir please this is my request sir🙏🏻🙂
Good
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👌👌
@Upendrakumarmalla
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Explain fem subject
@Upendrakumarmalla
2 жыл бұрын
I don't know fem
Mi number evvagalara
@Upendrakumarmalla
2 жыл бұрын
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Thanks sir ❤️
@Upendrakumarmalla
2 жыл бұрын
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