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http://dx.doi.org/10.7736/KSPE.2012.29.1.121

Performance Evaluation of Nano-Lubricants at Thrust Slide-Bearing of Scroll Compressor  

Cho, Han-Jong (Digital Appliance Research Laboratory, LG Electronics Inc.)
Cho, Yong-Il (Digital Appliance Research Laboratory, LG Electronics Inc.)
Cho, Sang-Won (Department of Mechanical Engineering, Pusan National Univ.)
Lee, Jae-Keun (Department of Mechanical Engineering, Pusan National Univ.)
Park, Min-Chan (Department of Mechanical Engineering, Pusan National Univ.)
Kim, Dae-Jin (Department of Mechanical Engineering, Pusan National Univ.)
Lee, Kwang-Ho (Department of Mechanical Engineering, Pusan National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.29, no.1, 2012 , pp. 121-125 More about this Journal
Abstract
This paper presents the friction and anti-wear characteristics of nano-oil with a mixture of a refrigerant oil and carbon nano-particles in the thrust slide-bearing of scroll compressors. Frictional loss in the thrust slide-bearing occupies a large part of total mechanical loss in scroll compressors. The characteristics of friction and anti-wear using nano-oil is evaluated using the thrust bearing experimental apparatus for measuring friction surface temperature and the coefficient of friction at the thrust slide-bearing as a function of normal loads up to 4,000 N and rotating speed up to 3,200 rpm. It is found that the coefficient of friction increases with decreasing rotating speed and normal force. The friction coefficient of carbon nano-oil is 0.023, while that of pure oil is 0.03 under the conditions of refrigerant gas R-22 at the pressure of 5 bars. It is believed that carbon nano-particles can be coated on the friction surfaces and the interaction of nano-particles between surfaces can be improved the lubrication in the friction surfaces. Carbon nano-oil enhances the characteristics of the anti-wear and friction at the thrust slide-bearing of scroll compressors.
Keywords
Scroll Compressor; Thrust Bearing; Nano-Lubricant; Nano Carbon;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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