Browse > Article
http://dx.doi.org/10.3795/KSME-B.2002.26.6.868

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

Kim, Sang-Wook (한국과학기술원 디지털나노구동연구단)
Kang, Tae-Goo (한국과학기술원 디지털나노구동연구단)
Cho, Young-Ho (한국과학기술원 디지털나노구동연구단)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.26, no.6, 2002 , pp. 868-874 More about this Journal
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
Microthruster; Multiple-Injection; Liquid Propellant; Fluid plug; Microinjector;
Citations & Related Records
연도 인용수 순위
  • Reference
1 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   DOI
2 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
3 Mueller, J., 1997, 'Thruster Options for Microspacecraft: A Review and Evaluation of Existing Hardware and Emerging Technologies,' AIAA, Seattle, WA, USA, Paper 97-3058
4 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   DOI
5 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   DOI
6 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   DOI   ScienceOn