The ultra micro turbine concept based on MEMS technology was proposed by MIT in 1997, and since then several projects have been initiated and sponsored by DARPA to facilitate development at various universities and research institutions in the US. The present authors, who belong to Gas Turbine Society of Japan, regard such ultra micro gas turbine engine systems as being crucial for mobile and environmentally friendly energy utilization technology in the future for general use anywhere in the world. This report describes our palm top-gas turbine (2-3kW, dry weight of 14.3kg including generator, 235,000rpm, outer diameter of 180mm, and length of 335mm) and our finger-top gas turbine test model (tens of W, 1,170,000rpm, outer diameter of 23mm, and length of 32mm). These developments represent the outcome of a NEDO-backed three-year international joint research project involving cooperation among Japanese universities, institutions and private firms, together with ONERA, CIAM and VKI, from FY2001 to FY2003.
This paper summarizes the development of variable area radial turbines for small turbochargers, intended for passenger car applications. Comparisons of aerodynamic performance of several different kinds of variable radial inflow turbines are discussed.
The results of comparative performance evaluations indicate the scroll area control type (VI) is the most suitable design for small turbochargers, where performance, cost and durability are the major design considerations.
, 7 − 3 − lHongo Bunkyo − ku, T(》kyo Ultra micro turbine concept based upon MEMS techno 且 ogy was proposed by MIT , since then several prqjects have been initiated and sponsored by DARPA for its developrnent throughout the universities and research institutions in the US . The present authors regard such ultra micro gas turbine engine systems to be crucial for the future mobi 畳 e and 出 endly energy ut 置 1ization system that anyone can e1tioy at any place on the g 且 obe 、 In this paper, our pa 且 m top gas turbine ( 2 − 3kW , dry weight 14. 3kg included generator, rotational speed 235000rpm , outer diameter 180mm , 1ength 335mm }and finger top gas turbine test model ( tens of W , rotationa 呈speed l l 70000rpm . outer diameter 23mm , 艮 ength 32mm }are described .
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.