1 a. Piston Components or Parts
Following are the main parts of piston : 1. Piston Rings.
Piston rings are a very important component. The combustion gas that is released at the time of the engine’s combustion process should not bypass the piston and the friction is the least we can use the ring around the piston.
The rings are provided by sealing between the piston and the cylinder valve. There are two types of piston rings : Compressor Ring and Oil Controller Ring.
2. Piston Head or Crown.
The piston crown is above the piston, due to its location, the piston crown in counter very high pressure and temperature. The piston crown that is used in the timing of the confinement process, the pigment which escapes from the gas exhaust, helps it out of the engine.
3. Piston Ring Grooves.
It consists of grooves above the piston, which employs rings.
4. Piston Skirt.
The piston skirt is the cylindrical valve of the piston. Piston skirts are made slightly rough at the time of manufacturing So that it can retain lubrication and also resist thrust.
2 5. Piston Pin.
It is also called a gudgeon pin. The pin is used to connect the piston and connecting rod. Harder steel is used as a material.
6. Connecting rod Shaft.
The connecting rod connects the piston to the crankshaft, and this is functions as a liver arm and transfers motion from the piston to the crankshaft.
7. Connecting Rod Bolts.
The bolt is used to connect the clamp and connecting road.
8. Bearings.
The bearing is installed in two parts and together they form a complete circle. Bearing is installed between the connecting rod and the crank pin.
9. Connecting Rod Cap.
The cap is the lower part of the piston assembly. The cap is the lower half of the connecting rod which forms the house for bearing the connecting rod.
b. Crankshaft Components or Parts.
Following are the main parts of crankshaft : 1. Crank Pin
The crankpin is a mechanical part of an engine. Which allows the connecting rod to be attached to the crankshaft very firmly. The surface of the crankpin is cylindrical, to give the rotative force to the large end of the connecting rod. There are also known as connecting rod journals.
3 2. Main Journals
They have fastened to the engine block and its appearance is round in shape. These bearings hold the crankshaft in position and provide it to rotate inside the engine block. This bearing is such as a plain bearing or journal bearings. The main bearings as per the engine vary between engines, often according to the forces given by the engine.
3. Crank Web
Crank web is a most essential part of the crankshaft. Which connects the crankshaft to the main bearing journals very accurately.
4. Counterweights
The counterweights are a type of weight, that applies opposite force, which provides balance and stability to the crankshaft and these are mounted on the crank web. The reason for installing counterweights in the crankshaft is, they can eliminate the reaction caused by rotation. And it is very helpful for achieving the higher RPM and makes the engine run easily.
5. Thrust Washers
At some points, two or more thrust washers are attached to stop the crankshaft from moving lengthways. These thrust washers assemble among the machined surfaces in the web and the crankshaft saddle. To maintain a small gap and reducing the amount of lateral movement possible for the crankshaft. In many engines, these are made as part of the main bearings, usually, older types, use separate washers.
6. Oil Seals
On both ends of the crankshaft, there are some ways to prevent the oil escaping from these openings should be provided. An oil seal is a poor part. But it needs a lot of labor to eliminate the transmission, clutch, flywheel, and crankshaft to access it. It is suggested that the oil seal be replaced whenever the engine is ruined and parts are accessible.
7. Flywheel Mounting Flange
In most cases, the crankshaft attaches to the flywheel through the flanges.
The diameter of the crankshaft wheel end is larger than the other end.
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PERTANYAAN
1. What happens when a leakage between the piston and cylinder?
Answer :
When there is a leakage between the piston and cylinder in an internal combustion engine, several issues can arise, impacting the engine's performance and efficiency. For example :
1. The compression will be compromised, leading to a loss of power and efficiency in the combustion process.
2. Leaks can result in a reduction of overall engine performance.
3. Oil to seep into the combustion chamber, it can contaminate the air-fuel mixture.
4. Increased wear and tear on the piston rings, cylinder walls, and other related components.
5. Incomplete Combustion.
6. Overheating.
2. Can a crankshaft be repaired? if damage occurs Answer :
It depends on the extent of the damage to the crankshaft. In some cases, it may be possible to repair the crankshaft by machining or grinding it down to remove any damage. However, if the damage is severe, such as a crack or break, the crankshaft may need to be replaced. The crankshaft is an important object that is exposed to high loads and pressure. It must be straight and true. They also spin quickly and further damage could result in engine failure.
