气体引射器流体动力特性实验研究

在实验装置上对气体引射器计算基本公式进行了实测验证，分析了理论特性曲线的可信度。通过实验，获得一些参数对引射器工况的影响规律。     

喷油嘴的失效分析

本文从材料选择、切削加工和热处理工艺等方面,分析了喷油嘴失效形式,为提高喷油嘴寿命,提供可靠依据。     

关于喷油器选用的初步探讨

针对3种进口喷油器使用中发生的不良率,从结构设计及检修状况进行分析,提出规范检修工艺、严格技术规程等措施,取得了一定的效果。     

注射机优化选择

以最大注射量、注射压力和锁模力等注射参数为出发点,结合数据库系统数据查询知识,借助计算机辅助设计方法来完成注射机校核工作,从而获得最优注射机。     

面向使用性能的注塑机型号编码方法研究

分析了现有注塑机型号编码方法存在的问题 ,提出了一套面向使用性能的注塑机型号编码方法 ,并通过实例研究 ,说明了编码方法的使用。通过研究可见 ,该方法将对开展虚拟企业内注塑机模块化设计和生产带来极大的便利 ,同时方便企业间的市场营销、财务结算、售后服务 ,并为今后网上订货、电子商务的开展打下基础。这种设备型号编码思想也可为其它产品型号编码所借鉴。     

挤压式旋转切割弹丸注入器

阐述了合肥弹丸注入器的工作原理，结构特点及液氮冷冻下ＣＨ４弹丸的制造和发射实验。结果表明，该注入器可产生Φ１ｍｍ×１ｍｍ、速度约４５０ｍ／ｓ的弹丸，离散度小于±０．３，弹丸重复性及完整性较好。     

Diesel engine fuel injection monitoring using acoustic measurements and independent component analysis

Air-borne acoustic based condition monitoring is a promising technique because of its intrusive nature and the rich information contained within the acoustic signals including all sources. However, the back ground noise contamination, interferences and the number of Internal Combustion Engine ICE vibro-acoustic sources preclude the extraction of condition information using this technique. Therefore, lower energy events; such as fuel injection, are buried within higher energy events and/or corrupted by background noise.     

First results of negative ion extraction with Cs for CRAFT prototype negative beam source

In order to understand the physics and pre-study the engineering issues for radio frequency(RF)negative beam source, a prototype source with a single driver and three-electrode accelerator was developed. Recently, the beam source was tested on the RF source test facility with RF plasma generation, negative ion production and extraction. A magnetic filter system and a Cs injection system were employed to enhance the negative ion production. As a result, a long pulse of 105 s negative ion beam with current density of 153 A m-2 was repeatedly extracted successfully. The source pressure is 0.6 Pa and the ratio of co-extracted electron and negative ion current is around0.3. The details of design and experimental results of beam source were shown in this letter.     

应用PIV技术对气固喷射器流场的试验研究

建立了气固喷射器射流流场特性研究的试验装置,采用PIV(粒子成像测速)技术对气固喷射器内部射流流场进行了测量,分析了整个喷射器内部流场的流动特性。结果表明,先进的PIV流场测量技术应用于气固喷射器射流流场特性研究的可行性。     

谈验泵油量基准传递系统的建立和完善

确立一套适合自身产品特点的、运行完整的、操作性强且置信度高的验泵油量基准传递系统,是保证验泵质量和提高校泵效率的基础,而油量基准的准确性和油量基准传递过程的不失真性是验泵油量基准传递系统确立和实施过程中务必解决好的2个主要环节。为此标准系统的模式和各级标准组成构件--流量泵,喷油器总成和试验台的确定方式、技术规范、工作要求等进行较为具体,深入地探讨。