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What is the Function of the Cylinder Block?

1 Answers

ArielFitz

07/30/25 5:03am

About the function of the cylinder block, the cylinder block is the main body of the engine, connecting the cylinders and the crankcase into one unit. It serves as the supporting framework for installing pistons, crankshafts, and other components and accessories. Here is additional information: 1. Performance: It must have sufficient strength and stiffness with minimal deformation to ensure the correct positioning of moving parts, normal operation, and low vibration and noise. It should also have good cooling performance, with cooling water jackets around the cylinder bores to allow cooling water to carry away heat. Additionally, it must be wear-resistant to ensure the cylinder block has a long service life. 2. Composition: The upper part of the cylinder block consists of parallel cylinder bores, most of which are now fitted with cylinder liners. The lower part of the cylinder block is the crankcase, which houses the crankshaft and can also accommodate various accessories such as generators and engine mounts externally. Most cylinder blocks are cast from cast iron or aluminum alloy. Aluminum alloy blocks are more expensive but offer advantages like lighter weight and better cooling performance, making them increasingly popular.

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