Structure Characteristics and Improvement of Oil Seal of Turbo-Supercharger

Abstract:

Through the analysis of the sealing mechanism of the oil seals in exhaust gas turbo supercharger and the comparative test of different oil seals with the pressure change in the oil-return chamber, a seal that uses a caulking ring with reverse threads is designed, and an optimum combination of oil seal is selected. The combination of caulking ring and the oil-return thread structure has better complementary action on oil sealing, because for the seal with oil-return reverse thread there is better dynamic and static seal effect on ring seal and has good sealing performance and high reliability at high speed. The test results of screening selection of combination seals show that different combinations of caulking ring and the oil-return threads have great influence on the pressure of the oil-return chamber. The combination of caulking ring outside and oil-return threads inside is recommended to be used. In addition, the smooth return of the oil can be ensured as far as possible by increasing the supercharger oil-return chamber volume. The improved structure of the oil seal has effectively enhanced the reliability of the whole unit of the exhaust gas turbo supercharger.

• Periodical: Advanced Materials Research (Volumes 779-780)
• Pages: 1130-1133
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.779-780.1130
• Online since: September 2013
• Authors: Hui Gan, Kun Yu Yang
• Keywords: Diesel Engine, Oil Seal, Structure Improvement, Turbo-Supercharger

References

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