Aeristech High-Pressure 48V Supercharger

该项目将研究为小型发动机(2.0升或更低)提供高水平增压(2巴目标)的可能性，当它们在怠速和低速(低于2000rpm)运行时，使用紧凑、高效的涡轮压缩机。在历史上，只有容积式压缩机(例如罗茨和螺杆)才能满足低流量高压的要求。Aeristech在高速发动机和控制器方面的背景知识产权提高了通过紧凑高效的涡轮压缩机将小型发动机增压到高增压水平的可能性，前提是涡轮压缩机可以设计成具有合适的喘振裕度。Aeristech已经确认了原始设备制造商的强烈兴趣，前提是该系统由48V输入供电。为了证明这一概念的可行性，该项目需要一个用于高增压和低流量的独特压缩机设计，以及一个48V架构的新电机和控制器，以应对比Aeristech以前处理过的更高的电流水平。如果所有这些都实现了，该系统将作为小型车的一个附加组件，并作为小型车多阶段助推概念的一个组成部分。这种增压或组件技术也可以应用于Aeristech的全电动涡轮增压概念，正如最近由TSB资助的IDP6研究所展示的那样，在该研究中，帝国理工学院开发了压缩机再循环概念，以克服大幅增压的2.0升发动机型号的喘振边缘。

This project will investigate the possibility of providing high levels of boost (2 bar target) tosmall engines (2.0 litre or less) when they are idling and running at low speeds (less than 2000RPM) with a compact, efficient turbocompressor. Historically, the requirement for highpressure with low flow is met only by positive displacement compressors (roots and screwtypes, for example). Aeristech’s background intellectual property in high-speed motors andcontrollers raises the possibility of supercharging a small engine to high boost levels with acompact and efficient turbocompressor, provided a turbocompressor could be designed with asuitable surge margin. Aeristech has identified strong interest from the OEMs, provided thesystem is powered by 48V input. To demonstrate the feasibility of this concept, the projectneeds a unique compressor design for high boost and low flow and a new motor and controllerwith 48V architecture, coping with higher current levels than Aeristech has previously dealtwith. If all this is achieved, the system will have applications as an add-on for small cars, andas an integrated part of a multi-stage boosting concept for small cars. This supercharger orcomponent technologies therefrom could also have applications in Aeristech’s fullElectricturbocharger concept, as demonstrated in a recent IDP6 study, funded by the TSB, in whichImperial College developed a compressor recirculation concept to overcome the surge marginin a heavily boosted 2.0 litre engine model.