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    1990 The first temperature-controlled electromagnetic fan clutch was born.
1991 Certified by the state, it filled the domestic gap in this field.
1995 Temperature-controlled electromagnetic fan clutch was graded as “national key and new product” by State Department of Science and Technology.
2001 Three-speed electromagnetic fan clutch (first generation) electromagnetic three-speed clutch was developed successfully.
2003 The second generation of three-speed electromagnetic fan clutch-electromagnetic soft fan clutch was developed successfully.
2007 The automobile industry standard-QC/T777-2007 Automobile Electromagnetic Fan Clutch Technical Specifications mainly drafted by our company was issued. Meanwhile, the third generation of electromagnetic soft fan clutch was born.
2008 Electronically controlled viscous fan clutch was developed successfully;

 

 

With the successful development of the fourth generation three-speed electromagnetic fan clutch, we became the partner of Beijing Olympic Games and Paralympic Games, and was awarded excellent achievement prize of China bus rapid transit technical equipment.

2009 Draw lessons from submarine’s propulsion system, we successfully developed the mute fan blade which is quieter than traditional fan. The blowing rate at the same speed can be raised by 30%. The promotion ambassador of the electromagnetic fan clutch was born in the same year.

In 2010, the fifth generation of the intelligent three-speed soft electromagnetic fan clutch  was launched. The intelligent three-speed soft electromagnetic fan clutch and the high-efficiency fan developed by us united to form an intelligent heat management system which further improved the engine’s energy-saving performance. The reliability of the product has reached the international level.

 
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Longkou Zhongyu Automobile Fan Clutch Co., Ltd.