Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

High-impulse, Low-Power Microthruster using Liquid Propellant with High-Viscosity Fluid Plug

저온 비등 팽창유체와 고점성 유체마개를 이용한 고출력 저전력형 마이크로 분사기

  • 김상욱 (한국과학기술원 디지털나노구동연구단) ;
  • 강태구 (한국과학기술원 디지털나노구동연구단) ;
  • 조영호 (한국과학기술원 디지털나노구동연구단)
  • Published : 2002.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

A high-impulse, low-power, digital microthruster has been developed using low-boiling-temperature liquid propellant with high-viscosity fluid plug. The viscous fiction force of the fluid plug increases the blast pressure and the low-boiling-temperature liquid propellant is intended to reduce input power consumption. The three-layer microthruster has been fabricated by surface micromachining as well as bulk micromachining in the size of 7$\times$13$\times$1.5㎣. A digital output impulse bit of 6.4$\times$10$^{-8}$ Nsec has been obtained from the fabricated microthruster using perfluoro normal hexane (FC72) propellant and oil plug, resulting in about ten times increase of the impulse bit using one hundredth electrical input energy compared to the conventional multiple-shot microthruster.

Keywords

References

  1. Mueller, J., 1997, 'Thruster Options for Microspacecraft: A Review and Evaluation of Existing Hardware and Emerging Technologies,' AIAA, Seattle, WA, USA, Paper 97-3058
  2. Ye, X., Tang, F., Ding, H. and Zhou, Z., 2000, 'A Vaporizing Water Micro-Thruster,' Proceedings of IEEE MEMS Workshop, Miyazaki, January 23-27, pp. 74-79 https://doi.org/10.1109/MEMSYS.2000.838493
  3. Lewis, D.H., Janson, S.W., Cohen, R.B. and Antonsson, E.K., 1999, 'Digital Micropropulsion,' Proceedings of IEEE MEMS Workshop, Orland, Florida, USA, pp. 517-522 https://doi.org/10.1016/S0924-4247(99)00260-5
  4. Asai, A., HARA, T., and Franklin, I.E., 1987, 'One-Dimensional Model of Bubble Growth and Liquid Flow in Bubble Jet Printers,' Japanese Journal of APPl. Phys., Vol. 26, No. 10, pp. 1794-1801 https://doi.org/10.1143/JJAP.26.1794
  5. Hirata, S., Ishii, Y., Matoba, H. and Inui, T., 1996, 'An Inkjet Head Using Diaphragm Micro-actuator,' Proceedings of IEEE MEMS Workshop, San Diego, California, USA, pp. 418-423 https://doi.org/10.1109/MEMSYS.1996.494018
  6. Zhu, X., Tran, E., Wang, W., Kim, E.S. and Lee, S.Y., 1996, 'Micromachined Acoustic-Wave Liquid Ejector,' Tech. Dig. Solid-State Sensor and Actuator Workshop, Hilton Head Island, SC, pp. 280-282