KEYWORDS
TOPICS
ABSTRACT
This study investigated the effect on piston assembly friction after treating piston surfaces with a fine particle bombarding process, using a friction measurement apparatus with a floating cylinder liner, similar to an eco-mileage vehicle engine. Friction was measured in four conditions: (1) no treatment (standard piston in a commercially-available engine), (2) micro dimple treatment (45 μm ceramic particles were air-blasted onto the piston surface), (3) molybdenum disulfide (MoS2) shot treatment (1 μm MoS2 particles were air-blasted onto the piston surface), and (4) combination of the previous two micro dimple and MoS2 shot treatments (first 45 μm ceramic particles and then 1 μm MoS2 were air-blasted onto the piston surface). Results indicated that friction decreased in the following order: no treatment > micro dimple treatment > MoS2 shot treatment > combination of micro dimple and MoS2 shot treatments.
 
REFERENCES (15)
1.
HOSHI, M. Reducing friction losses in automobile engines. Tribology International. 1984, 17(4), 185-189. https://doi.org/10.1016/0301-6....
 
2.
KANAI, S., TARESAWA, C., FUJIWARA, N. Friction reduction technology of the piston for gasoline engine. Transactions of the Society of Automotive Engineers of Japan. 2013, 44(2), 381-386. (in Japanese). https://doi.org/10.11351/jsaer...
 
3.
KOVACH, J., TSAKIRIS, E., WONG, L. Engine friction reduction for improved fuel economy. SAE Technical Paper 820085. 1982. https://doi.org/10.4271/820085.
 
4.
MATSUMOTO, K. Friction reduction in an internal combustion engine. Journal of the Japan Society of Mechanical Engineers. 1976, 79(694), 870-876. https://doi.org/10.1299/jsmema... (in Japanese).
 
5.
MURAKAMI, M., KONOMI, T., NOHIRA, H. et al. Analysis of piston frictional force under engine firing condition. Effects of surface characteristics of piston skirt on friction. Transactions of the Society of Automotive Engineers of Japan. 1991, 22(4), 70-73. (in Japanese).
 
6.
NAKADA, M. Trends in engine technology and tribology. Tribology International. 1994, 27(1), 3-8. https://doi.org/10.1016/0301-6....
 
7.
NAKANISHI, K., OKADA, Y., SERA, K. et al. Teardown analysis for piston assembly friction with optimization controls. Honda R & D Technical Review. 2010, 22(1), 154-159.
 
8.
NAKASHIMA, K., UCHIYAMA, Y. Experimental development of apparatus to measure piston assembly friction in an eco-mileage vehicle engine. Combustion Engines. 2019, 177(2), 55-59. https://doi.org/10.19206/CE-20....
 
9.
OGIHARA, H., KIDO, T., YAMADA, H. et al. Technology for reducing engine rubbing resistance by means of surface improvement. Honda R & D Technical Review. 2000, 12(2), 93-98.
 
10.
OGIHARA, H. Modification of piston sliding surface for internal combustion engine by fine particle peeing of solid lubricant. Tribologist. 2002, 47(12), 895-900. (in Japanese).
 
11.
OGIHARA, H. Research into surface improvement for low friction pistons. SAE Transactions Journal of Engines. 2005, 114(3), 1182-1190. https://doi.org/10.4271/2005-0....
 
12.
PODGORNICK, B., VILHENA, L., SEDLACEK, M. et al. Effective and design of surface texturing for different lubrication regimes. Meccanica. 2012, 47, 1613-1622. https://doi.org/10.1007/s11012....
 
13.
SASAKI, M., TAKAHASHI, N., SATO, T. et al. Development of low friction solid film lubricant for piston (First report) Development of double layer solid film lubricant, 2010 JSAE Annual Congress (Spring) Proceedings, 2010, 82(10), 7-10. (in Japanese).
 
14.
SUGIMURA, K. Development of piston treatment for internal combustion engine. SAE International Journal of Materials and Manufacturing. 2008, 1(1), 824-831. https://doi.org/10.4271/2008-0....
 
15.
TAKIGUCHI, M., TAKIMOTO, T., ASAKAWA, E. et al. A study of friction force reduction on piston skirt (Effect of width, roughness and resin coating). Transactions of the Japan Society of Mechanical Engineers B, 1997, 63(611), 2587-2592. https://doi.org/10.1299/kikaib... (in Japanese).
 
eISSN:2658-1442
ISSN:2300-9896