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http://dx.doi.org/10.9725/kstle.2015.31.5.213

Improvement of the Lubrication Characteristics of Fuel Injection Pump for Medium-Speed Diesel Engines: Part II - Application of Grooves  

Hong, Sung-Ho (Engine & Machinery Division, Hyundai Heavy Industries)
Lee, Bora (Dept. of Mechanical Engineering, Pusan National University)
Cho, Yongjoo (Dept. of Mechanical Engineering, Pusan National University)
Publication Information
Tribology and Lubricants / v.31, no.5, 2015 , pp. 213-220 More about this Journal
Abstract
This study evaluates the effect of grooves on the stem part of a plunger on the lubrication characteristics of a fuel injection pump (FIP) by using hydrodynamic lubrication analysis. The current study uses the two-dimensional Reynolds equation to evaluate the changes in lubrication characteristics with variations in clearance, viscosity, and grooves for a laminar, incompressible, and unsteady state flow. This study investigates the lubrication characteristics by comparing the dimensionless minimum film thickness or the film parameter, which is the ratio of the minimum film thickness to surface roughness. The analysis method for the groove section differs depending on the depth of the groove. For instance, in the case of a shallow groove, the film thickness equation considers the depth of the groove, while in the case of a deep grove, it considers the flow continuity. The lubrication characteristics of the FIP are more sensitive to changes in the groove width than to changes in other design variables. Moreover, the application of a groove is more effective under low viscosity conditions. The smaller the distance from the edge of the stem part to the first groove in the case of shallow grooves, the better are the lubrication characteristics of the FIP. In contrast, in the case of deep grooves, the lubrication characteristics of the FIP improve as the distance increases. The application of shallow grooves is more effective for improving the lubrication characteristics than the application of deep grooves.
Keywords
medium-speed diesel engine; fuel injection pump; groove; clearance; minimum film thickness;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 Ali, F., Kaneta, M., Krupka, I., Hartl, M., “Experimental and Numerical Investigation on the Behavior of Transverse Limited Micro-Grooves in EHL Point Contacts”, Tribology International, Vol. 84, pp. 81-89, 2015.   DOI
2 Janakiraman, S., Klit, P., Jensen, N. S., Gronbaek, J., “Observation on the Effects of Grooved Surfaces on the Interfacial Torque in Highly Loaded Rolling and Sliding Tests”, Tribology International, Vol. 81, pp. 179-189, 2015.   DOI
3 Hong, S. H., Son, S. I., Kim, K. W., “A Study on the Lubrication Characteristics of Spool Valve with Spiral Groove”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 28, No. 6, pp. 303-314, 2012.   DOI
4 Hong, S. H., Son, S. I., Kim, K. W., “Study on Lubrication Characteristics of Spool Valve with Various Cross-sectional Groove Shapes”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 29, No. 3, pp. 149-159, 2013.   DOI
5 Kumar, S., Bergada, J. M., “The Effect of Piston Grooves Performance in an Axial Piston Pump”, International Journal of Mechanical Sciences, Vol. 66, pp. 168-179, 2013.   DOI
6 Jeon, W. J., Lee, H., Kim, J. W., Kim, K. Y., “The Influence of Groove Location on the Lubrication Characteristic of a Piston”, Proc. Spring Conference of the KSTLE, pp. 61-62, 2013.
7 Merritt, H. E., “Hydraulic Control Systems”, John Wiley & Sons, Inc., pp. 108-111, 1967.
8 Adatepe, H., Biyikioglu, A., Sofuoglu, H., “An Experimental Investigation of Frictional Behavior of Statically Loaded Micro-Grooved Journal Bearing”, Tribology International, Vol. 44, pp. 1942-1948, 2011.   DOI
9 Lee, B. R., Cho, Y. J., “Numerical Analysis of the Plunger Motion in Reciprocating Pump”, Proc. Spring Conference of the KSTLE, pp. 31-32, 2013.
10 Lee, B. R., Cho, Y. J., and Song, C. S., “The Effect of Partial Groove on Lubrication Property for Plunger Pump”, Journal of the Korean Soc. Precis. Eng., Spring Conference, pp. 564, 2014.
11 Bi, C., Tang, G. H., Tao, W. Q., “Heat Transfer Enhancement in Mini-Channel Heat Sinks with Dimples and Cylindrical Grooves”, Applied Thermal Engineering, Vol. 55, pp. 121-132, 2013.   DOI
12 Adatepe, H., Biyikioglu, A., Sofuoglu, H., “An Investigation of Tribological Behaviors of Dynamically Loaded Non-Grooved and Micro-Grooved Journal Bearings”, Tribology International, Vol. 58, pp. 12-19, 2013.   DOI
13 Kang, J. H., Kim, K. Y., “A Study on Design Parameters to Improve Load Capacity of Spiral Grooved Thrust Bearing”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 18, No. 3, pp. 181-186, 2002.
14 Park, S. S., Jang, W. Y., “Theoretical Analysis of Herringbone Grooved Air Thrust Bearings”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 27, No. 5, pp. 233-239, 2011.   DOI
15 Cho, M. R., Han, D. C., “An Analytical Study on the Lubrication Characteristics between the Piston Ring and Grooved Cylinder Liner”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 16, No. 2, pp. 114-120, 2000.
16 Lee, A. S., Kim, J. H., “Lubrication Performance Analysis of a Spiral Groove Dry Gas Seal for a High-Speed Flying Object”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 21, No. 1, pp. 8-15, 2005.
17 Hong, S. H., “Improvement of Lubrication Characteristics in Fuel Injection Pump for Medium-Speed Diesel Engines: Part I - Application of Profile Shape”, J. Korean Soc. Tribol. Lubr. Eng., In-Print, 2015.
18 Hong, S. H., Lee, B. R., Cho, Y. J., Park, J. K., “Optimal Design of Clearance in Fuel Injection Pump”, J. Korean Soc. Tribol. Lubr. Eng., Vol. 31, No. 4, pp. 148-156, 2015.   DOI
19 Park, T. Y., Kim, D. H., Ghal, S. H., “A Study on the Design Improvement to Increase Durability of Fuel Injection Nozzle for HiMSEN”, Journal of Korean Society of Marine Engineering Autumn Conference, pp. 231-232, 2010.
20 Yang, Y. J., “Study on Simulation of Fuel Injection Pump for Marine Medium Diesel Engine”, J. Korean Soc. of Manufacturing Process Engineers, Vol. 11, No. 6, pp. 123-129, 2012.
21 Jeon, H. J., Lee, D. C., “Marine Diesel Engines and Gas Turbines”, Dong Myeong Publishers, pp. 728-729, 2012.
22 Lee, B. R., Cho, Y. J., “Hydrodynamic Lubrication Analysis of Plunger Motion for Reciprocating Pump”, Proc. Autumn Conference of the KSTLE, pp. 255, 2014.