International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
권호 표지
DOI QR코드

DOI QR Code

Study for the Increase of Micro Regenerative Pump Head

  • Received : 2009.03.27
  • Accepted : 2009.04.22
  • Published : 2009.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

The effect of inlet and outlet blade angles on a micro regenerative pump head was examined in experiments. The pump head was little increased by changing the blade angles compared with the original pump with the inlet and outlet blade angles of 0 degree. The effect of the axial clearance between the impeller and the casing on the pump head was also examined. The head was increased largely by decreasing the axial clearance. The computation of the internal flow was performed to clarify the cause of the increase of the pump head due to the decrease of the clearance. The local flow rate in the casing decreased as the leakage flow rate through the axial clearance decreased due to the decrease of the clearance. It was found that the larger head in the smaller clearance was just caused by the smaller local flow rate in the casing. In the case of the smaller clearance, the smaller local flow rate caused the smaller circumferential velocity near the front and rear sides of the impeller. This caused the increase of the angular momentum in the casing and the head.

Keywords

References

  1. Yumiba, D., 2005, “Prototyping of Micro Pump and the Reynolds Number Effect on the Performance of Micro Regenerative Pump,” Master Thesis, Osaka University, in Japanese.
  2. Horiguchi, H., Yumiba, D., Tsujimoto, Y., Sakagami, M., and Tanaka, S., 2008, “Reynolds Number Effect on Regenerative Pump Performance in Low Reynolds Number Range,” International Journal of Fluid Machinery and Systems, Vol. 1, No. 1, pp. 101-108. https://doi.org/10.5293/IJFMS.2008.1.1.101
  3. Horiguchi, H., Matsumoto, S., Tsujimoto, Y., Sakagami, M., and Tanaka, S., 2009, “Effect of Internal Flow in Symmetric and Asymmetric Micro Regenerative Pump Impellers on Their Pressure Performance,” International Journal of Fluid Machinery and Systems, Vol. 2, No. 1, pp. 72-79. https://doi.org/10.5293/IJFMS.2009.2.1.072
  4. Iversen, H. W., 1955, “Performance of the Periphery Pump,” Transactions of the ASME, Vol. 77, pp. 19-22.
  5. Shimosaka, M. and Yamazaki, S., 1960, “Research on the Characteristics of Regenerative Pump (1st Report, Influences of Flow Channel and Impeller),” Bulletin of the JSME, Vol. 3, No. 10, pp. 185-190. https://doi.org/10.1299/jsme1958.3.185
  6. Inaba, T., Hayashi, M, and Murata, S., 1981, “A Study on a Vortex Blower (1st Report, Effect of the Shape of Impeller and Modification of the Inlet of Blower),” Bulletin of the JSME, Vol. 24, No. 192, pp. 973-979. https://doi.org/10.1299/jsme1958.24.973
  7. Inaba, T., Hayashi, M., Murata, S., and Kawatani, Y., 1982, “A Study on a Vortex Blower (2nd Report, Effect of the Blade Angles and a Theoretical Analysis of the Performance),” Bulletin of the JSME, Vol. 25, No. 200, pp. 157-164. https://doi.org/10.1299/jsme1958.25.157
  8. Hubel, M., Blattel, B., and Strohl, W., 1995, “Investigation of Fluid Mechanics of the Regenerative Pump Used in Gasoline Injection Systems,” SAE TECHNICAL PAPER SERIES, International Congress and Exposition, Detroit, Michigan, No. 950077, pp. 131-139.
  9. Yamazaki, S. and Tomita, Y., 1971, “Researches on the Performance of the Regenerative Pump with Non-Radial Vanes (1st Report, Performance and Inner Flow),” Bulletin of the JSME, Vol. 14, No. 77, pp. 1178-1186. https://doi.org/10.1299/jsme1958.14.1178
  10. Yamazaki, S., Tomita, Y., and Sasahara, T., 1972, “Researches on the Performance of the Regenerative Pump with Non-Radial Vanes (2nd Report, Effects of the Pump Elements),” Bulletin of the JSME, Vol. 15, No. 81, pp. 337-343. https://doi.org/10.1299/jsme1958.15.337

Cited by

  1. The Performance Analysis Method with New Pressure Loss and Leakage Flow Models of Regenerative Blower vol.8, pp.4, 2015, https://doi.org/10.5293/IJFMS.2015.8.4.221