Study on Distributed High Specific Power Micro-engines

分布式高比功率微型发动机研究

基本信息

批准号：
02555045
负责人：
NAKAJIMA Naomasa
金额：
$ 3.9万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

项目摘要

1. Design of micro Stirling engineThe micro Stirling engine, a miniaturized Stirling engine the length, or height of whose body measured no more than several centimeters, was designed and fabricated. The steps taken both to establish the design concept and actually to produce a microactuator were investigated. Geometrical scale analysis and computer simulation are used to investigate how the design parameters change when the engine size was reduced. This analysis and simulation enable a micro Stirling engine with an approximately 50 ml piston swept volume to be produced. The output power is approximately 10mW at 100K temperature difference, and specific power is about 1W/kg.2. Light driven micro actuatorWe designed and fabricated light driven micro actuators which was intended to use as array of distributed high specific power actuators. The light driven micro actuator is a microcell which has a membrane actuated by heated working fluid(Freon 113). Heat is supplied by semiconductor laser through an optical fiber. The membrane is 0.8 mm square and 0.8mm thickness, and made of NICrSI. The maximum displacement of the membrane measured 35mm at 50mW laser power, and the microcell could respond at 5Hz pulsative laser input.3. Application of an array of the actuatorsA laser light driven micromechanical pump for fluid has been designed and fabricated. The pump consists of an array of the microcells. These are covered by a thin glass plate with a 18 mm gap which makes a flow channel. The experiment driven by pneumatic pump instead of laser light showed reasonable pump performance, but the one driven by light was not satisfied results because of delay of working gas cooling.A guide mechanism of a medical catheter using array of the microcell was also investigated.

1。设计和制造的微型Stirl Engine Engine Engine Micro Stirling发动机的长度或高度不超过几厘米。研究了两者以建立设计概念和实际产生微毒剂所采取的步骤。几何规模分析和计算机模拟用于研究当发动机尺寸减小时设计参数如何变化。该分析和仿真使一个微型Stirl引擎能够产生约50 ml活塞的体积。在100k温度差的情况下，输出功率约为10MW，特定功率约为1W/kg.2。轻驱动的微动仪设计和制造的轻型微型执行器，旨在用作分布式高特定功率执行器的数组。光驱动的微型执行器是一个微电池，其膜由加热的工作流体（Freon 113）驱动。通过光纤通过半导体激光器提供热量。膜为0.8毫米平方，厚度为0.8mm，由NICRSI制成。膜的最大位移在50MW激光功率下测量35mm，微电池可能在5Hz脉动激光输入下做出响应。3。已经设计和制造了一系列Actuatoratorsa激光驱动的微电机械泵。该泵由微电池组成。这些被薄的玻璃板覆盖，并带有18毫米间隙，这是一个流动通道。由气动泵而不是激光驱动的实验表现出合理的泵性能，但是由于工作气体冷却的延迟，由光驱动的泵表现不满。