Engine Block – This is the very core of the engine. Often made of aluminum or iron, it has several holes to contain the cylinders as well as provide water and oil flow paths to cool and lubricate the engine. Oil paths are narrower than the water flow paths. The engine block also houses the pistons, crankshaft, camshaft, and between four and twelve cylinders-depending on the vehicle, in a line, also known as inline, flat, or in the shape of a V.
Timing Belt/Chain – The camshaft and crankshafts are synchronized to ensure the precise timing in order for the engine to run properly. The belt is made of heavy-duty rubber with cogs to grasp the pulleys from the camshaft and crankshaft. The chain, similar to your bicycle chain wraps around pulleys with teeth.
With so many mechanisms performing many tasks at lightning speed, over time, parts may begin to wear causing your car to behave differently. Here are the most common engine problems and their associated symptoms: Cylinder liner Cylinder head gasket Piston Piston ring Shandong Lixu International Trading Co., Ltd. , https://www.sdhxmachinery.com
Winter is the best time for the maintenance of the circulating water device, especially the best stage to eliminate the hidden troubles of the cooling tower fan and restore the function of the fan. Every winter, the olefin plant must inspect and repair the cooling tower fan to ensure the summer high temperature cycle water device. The stable operation. The main contents of the overhaul of the wind turbine are the inspection of the deceleration of the gearbox, the inspection of the alignment of the transmission shaft, the inspection of the corrosion of the wheel hub, the inspection of the foundation and the fastening of the anchor bolts, and the inspection of the use conditions of the wind turbine and the reinforcement. The olefin plant was strictly inspected for cracking of the hub blades, loosening of the wind turbines, bolt corrosion, and other conditions. The defective components were replaced at the same time, and all kinds of hidden dangers that threatened the stable operation of the fan were completely eliminated. At the same time as the maintenance of the turbine, the olefin plant realized synchronous inspection of the motor, and a total of 4 faulty motors were overhauled, which completely eliminated the adverse factors affecting the fan's operation due to motor failure. During the five-month annual overhaul of the turbine, the circulating water plant of the olefin plant strictly satisfies the quality of inspection and acceptance of each turbine, and ensured the high standard and high-quality overhaul of 29 sets of four circulating water devices. In the maintenance of the turbine, the olefin plant also pays attention to the application of new technologies and new materials. The plant will replace the drive shaft of No. 8 fan with a new carbon fiber shaft, effectively reducing the vibration of the fan; replacing the No. 5 fan with an energy-saving hub to achieve energy saving and optimized performance.
After the turbine was overhauled, the olefin plant strengthened the operation and management of the wind turbine. The shift supervisor was responsible for the inspection of the turbine on the tower. The transport personnel were responsible for the daily inspection of the turbine and measured the vibration of the fan on a daily basis and recorded the relevant data to ensure the fan's performance. safe operation.
Pistons – Are a cylindrical apparatus with a flat surface on top. The role of the piston is to transfer energy created from combustion to the crankshaft to propel the vehicle. Pistons travel up and down within the cylinder twice during each rotation of the crankshaft. Pistons on engines that rotate at 1250 RPM, will travel up and down 2500 times per minute. Inside the piston, lie piston rings that are made to help create compression and reduce the friction from the constant rubbing of the cylinder.
Crankshaft – The crankshaft is located in the lower section of the engine block, within the crankshaft journals (an area of the shaft that rests on the bearings). This keenly machined and balanced mechanism is connected to the pistons through the connecting rod. Similar to how a jack-in-the-box operates, the crankshaft turns the pistons up and down motion into a reciprocal motion, at engine speed.
Camshaft – Varying from vehicle to vehicle, the camshaft may either be located within the engine block or in the cylinder heads. Many modern vehicles have them in the cylinder heads, also known as Dual Overhead Camshaft (DOHC) or Single Overhead Camshaft (SOHC), and supported by a sequence of bearings that are lubricated in oil for longevity. The role of the camshaft is to regulate the timing of the opening and closing of valves and take the rotary motion from the crankshaft and transfer it to an up and down motion to control the movement of the lifters, moving the pushrods, rockers, and valves.
Cylinder Head – Attached to the engine through cylinder bolts, sealed with the head gasket. The cylinder head contains many items including the valve springs, valves, lifters, pushrods, rockers, and camshafts to control passageways that allow the flow of intake air into the cylinders during the intake stroke as well as exhaust passages that remove exhaust gases during the exhaust stroke.
Poor compression – Results in loss of power, misfiring, or no-start.
Cracked engine block – Causes overheating, smoke coming from exhaust, or coolant leaks, usually identified on the side of the engine.
Damaged Pistons, Rings, and/or Cylinders – Exhibit rattling sounds, blue smoke coming from the exhaust, rough idle, or a failed emissions test.
Broken or worn Rods, Bearings, & Pins – Cause tapping or ticking sounds, low oil pressure, metal shavings found in engine oil, or rattling upon acceleration.
Car engines may seem complicated, but their task is simple: to propel your vehicle forward. With so many components working together to create this motion, it`s imperative your vehicle receives proper maintenance to ensure their longevity. Regularly scheduled oil changes, fluid flushes, and changing belts and hoses at the recommended time is a great way to help prevent the unfortunate circumstance of a failed engine.
In order to ensure the safe operation of chemical installations during the high temperature period in summer, Yangzi Olefins Factory used the favorable conditions of lower temperature in winter to carry out overhaul of 29 cooling tower fans of the four sets of circulating water devices of the plant one by one. From November last year, as of mid-March, the plant successfully completed the complete overhaul of 29 wind turbines.