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Fan Clutch Die Casting Custom

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Fan Clutch Die Casting Manufacturers

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The automobile fan clutch is an important part of the vehicle cooling system. Its function is to automatically control the operation of the fan according to the engine temperature to ensure that the engine is within a suitable operating temperature range. During the operation of the car, the engine will generate a large amount of heat. If it cannot be effectively dissipated, it will cause the engine to overheat or even be damaged. Therefore, the normal operation of the fan clutch is crucial to ensure the performance and life of the engine.
The fan clutch consists of a clutch and a fan. The clutch usually consists of an electromagnetic coil, a housing, a friction plate, a gland, and a spring. The fan consists of blades, fan housing, and bearings. When the engine temperature rises, the electromagnetic coil in the fan clutch will be controlled by the signal of the temperature sensor, and generate a magnetic field through electromagnetic action, which increases the friction between the friction disk and the fan shell, thus connecting the fan and the engine. fan operation. When the engine temperature drops to a certain level, the electromagnetic coil stops working, the friction between the friction disk and the fan case is reduced, and the fan stops rotating to reduce power consumption and noise.
One of the main benefits of a fan clutch is improved engine fuel efficiency. Because the fan only turns when necessary, the engine's demand for power is reduced and fuel consumption is reduced. In addition, the fan clutch reduces noise and vibration and improves driving comfort. The fan clutch's reliability and durability are also among its favored features, allowing it to maintain stable performance in harsh operating environments.

Ningbo Fenda New Energy Technology Co., Ltd.

  • 27+

    Years Industry Experience

  • 150000+

    Factory Area

  • 450+

    Skillful Employees

  • 18+

    Advanced Production Line

As China Fan Clutch Die Casting Manufacturers and Fan Clutch Suppliers, Ningbo Fenda New Energy Technology Co., Ltd., formerly Ningbo Beilun Fenda Mold Co., Ltd., was established in 2006. It is a professional manufacturer integrating mold design and manufacturing, die casting production and processing. The company specializes in manufacturing auto parts such as electric control box casings, motor casings and water pump casings for new energy vehicles. The company currently has a factory area of 15,000 square meters, more than 140 employees, 6 large-scale aluminum die-casting machines from 400T to 2000T, 80 high-speed/high-precision machining centers, 30 high-precision friction stir welding, electric machining machine tools, surface treatment and other precision special equipment. Yutai. In terms of product quality control, the company has been equipped with one Zeiss and Edwards CMM, one industrial CT, one Oxford Hitachi spectrometer, and several air tightness detectors. At present, the company has passed the IATF 16949:2016 quality system certification and further established and improved the modern enterprise management system. Relying on technological innovation and taking product excellence as its concept, the company is committed to becoming the forefront of the industry, adhering to the quality principle of "zero defects", always adhering to the business policy of "survival by quality, development by reputation", and strives to become a new The energy vehicle electronic control box casing manufacturing industry is a rising star with "strong comprehensive strength and fast development speed".

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Industry knowledge

1. Types of Fan Clutches

Fan clutches are integral to engine cooling systems, regulating the operation of cooling fans to maintain optimal engine temperature. Understanding the different types of fan clutches helps in selecting the right one for specific applications:
a) Thermal Fan Clutches: Thermal fan clutches are the most common type found in automotive applications. They operate based on changes in engine temperature. Inside the clutch assembly, there is a bimetallic strip or a thermostatic spring connected to a valve that controls the flow of silicone oil or other viscous fluid. As the engine heats up, the bimetallic strip or spring expands, allowing the valve to open and permit fluid flow. This engagement causes the fan to spin faster, increasing airflow over the radiator and cooling the engine. When the engine cools down, the bimetallic strip contracts, closing the valve and reducing fluid flow, which slows down the fan. This mechanism helps optimize cooling efficiency and reduces power loss when additional cooling isn't needed. Ningbo Fenda New Energy Technology Co., Ltd. currently has a factory area of 15,000 square meters, more than 140 employees, 6 large-scale aluminum die-casting machines from 400T to 2000T, 80 high-speed/high-precision machining centers, 30 high-precision friction stir welding, electric machining machine tools, surface treatment, and other precision special equipment.
b) Non-Thermal Fan Clutches: Non-thermal fan clutches operate through different mechanisms, primarily focusing on electromagnetic or viscous fluid coupling rather than temperature-dependent triggers: Electromagnetic Fan Clutches: These clutches use an electromagnetic coil to control the engagement of the fan. When an electric current is applied, the coil creates a magnetic field that pulls a clutch plate into contact with the fan hub, causing it to spin. These clutches offer precise control over fan speed and engagement, often used in applications where rapid adjustments are necessary. Viscous Fluid Fan Clutches: Unlike thermal clutches that use a thermostat and silicone fluid, viscous fluid clutches rely on a fluid coupling mechanism. They contain a reservoir of silicone oil or viscous fluid that connects the fan blades to the engine's drive pulley. As the engine speeds up, the fluid inside the clutch heats up and becomes less viscous, allowing the fan blades to spin faster. Conversely, at lower engine speeds or temperatures, the fluid thickens, reducing fan speed. This type of clutch provides smooth engagement and is commonly found in heavy-duty applications where consistent cooling is crucial. Ningbo Fenda New Energy Technology Co., Ltd. specializes in manufacturing auto parts such as electric control box casings, motor casings, and water pump casings for new energy vehicles.
c) Electronic Fan Clutches: Emerging in modern automotive designs, electronic fan clutches integrate sensors and electronic control units to monitor engine temperature and control fan engagement electronically. These clutches offer precise and responsive cooling control, adjusting fan speed based on real-time data rather than relying on mechanical or fluid-based triggers alone. Electronic fan clutches contribute to improved fuel efficiency and reduced noise levels by optimizing fan operation according to specific engine conditions. Selecting the appropriate fan clutch depends on factors such as vehicle type, operating conditions, and desired cooling performance. Thermal clutches are ideal for most passenger vehicles due to their simplicity and reliability, while non-thermal and electronic clutches offer advantages in heavy-duty and performance applications where precise control and efficiency are paramount.

2. Importance of Fan Clutches in Engine Efficiency

Fan clutches play a critical role in optimizing engine performance and efficiency by managing the cooling system's operation effectively. Here’s how they contribute to overall engine efficiency:
a) Minimizing Parasitic Losses: Fan clutches are designed to engage and disengage the engine cooling fan as needed, rather than running continuously. When the engine is cool or operating under light loads, the fan clutch disengages or runs at a lower speed. This reduction in fan operation minimizes the amount of engine power diverted to drive the fan, thereby reducing parasitic losses. These losses can significantly impact fuel efficiency, especially in vehicles with high-displacement engines or in heavy-duty applications. Ningbo Fenda New Energy Technology Co., Ltd. currently operates with a factory area of 15,000 square meters, more than 140 employees, 6 large-scale aluminum die-casting machines from 400T to 2000T, 80 high-speed/high-precision machining centers, 30 high-precision friction stir welding, electric machining machine tools, surface treatment, and other precision special equipment. This robust infrastructure supports their specialization in manufacturing auto parts such as electric control box casings, motor casings, and water pump casings for new energy vehicles.
b) Optimizing Cooling Efficiency: By regulating fan speed based on engine temperature, fan clutches ensure that the cooling system operates efficiently. When the engine heats up, such as during heavy load conditions or high ambient temperatures, the fan clutch engages, increasing airflow over the radiator. This enhanced cooling capability prevents engine overheating and maintains optimal operating temperatures. Conversely, during cooler conditions or when less cooling is required, the fan clutch disengages or reduces fan speed, conserving energy that would otherwise be wasted. Ningbo Fenda New Energy Technology Co., Ltd. specializes in manufacturing high-quality auto parts including electric control box casings, motor casings, and water pump casings for new energy vehicles. Their advanced facilities and precision equipment ensure reliable production and contribute to the efficiency and performance of automotive cooling systems.
c) Improving Engine Performance: Efficient cooling provided by fan clutches helps maintain consistent engine performance. Overheating can lead to engine wear, reduced power output, and increased emissions. By ensuring proper cooling, fan clutches help engines operate within their optimal temperature range, enhancing reliability and longevity. This is particularly crucial in high-performance vehicles and heavy machinery where engine stress levels are higher.
d) Enhancing Vehicle Durability: Properly functioning fan clutches contribute to the overall durability of vehicles and equipment. Engines subjected to excessive heat due to inadequate cooling can experience premature wear of internal components such as pistons, cylinders, and bearings. By preventing overheating, fan clutches help preserve engine integrity and extend service life, reducing maintenance costs and downtime.