Powertrain Technologies Ltd

设计和开发一台空气混合动力柴油发动机系统的演示器，该系统针对停/启动占主导地位的城市公交车市场。该项目基于布鲁内尔大学的再生式空气混合动力技术，并获得国际专利，专门针对欧洲和世界其他地区公交公司使用的现代柴油发动机应用该系统。布鲁内尔的空气混合动力技术有可能实现8%-15%的燃油节省，具体取决于城市公交车的工作循环和基本车辆性能，并相应减少CO2排放和运行成本。预计每辆公共汽车每年可节省5，000至8，000英镑的运营成本。Brunel再生空气混合动力系统的工作原理是将发动机转换为有效的大型空气泵，以提供发动机制动并以压缩空气的形式捕获车辆能量，压力高达10 bar。通过将发动机操作转换为停止/启动系统，并使用压缩空气及其包含的“自由”能量，通过空气启动器启动发动机，实现了经济性和CO2节约。该项目涉及开发一种“通用”可移动空气连接器，用于连接发动机进气口和空气储存器系统，以捕获和储存来自发动机的压缩空气。创新的可移动空气连接器装置使发动机能够在动力下完全正常地操作，而不限制发动机的呼吸，因此没有动力损失，但是当车辆制动并且发动机切换到空气泵模式时，连接器移动以与入口端口接合，从而将发动机连接到空气储存器。该项目最终将建成一辆运行原型巴士，经改装后运行该系统，并按正常运行时间表使用，以便将道路性能与标准车辆进行比较，并随后推广该产品。

To design and develop a demonstrator of an air hybrid diesel engine system aimed at the urban bus market where stop/start duty cycles dominate. Based on internationally patented Brunel University regenerative air hybrid technology, this project specifically addresses the application of the system to modern diesel engines used by bus companies in Europe and elsewhere in the world.Brunel’s air hybrid technology has the potential to achieve fuel savings in the range of 8% -15%, depending upon urban bus duty cycles and the base vehicle performance, with acorresponding reduction in CO2 emissions and running costs. Savings in annual operatingcosts are expected to be in the order of £5,000 to £8,000 per bus.The Brunel regenerative air hybrid system works on the principle of switching the engine to become effectively a large air pump to provide engine braking and capturing the vehicleenergy in the form of compressed air at pressures up to 10 bar. The economy and CO2 savings are achieved by converting the engine operation to a stop/start system and using thiscompressed air, and the “free” energy it contains, to start the engine with an air starter.This project involves the development of a “universal” moveable air connector to interface between the engine inlet ports and the air reservoir system to capture and store thecompressed air from the engine. The innovative moveable air connector device enables the engine to operate completely normally when under power with no restriction to the breathing of the engine and hence no power loss, but when the vehicle is braking and the engine is switched to air-pump mode, the connector moves to engage with an inlet port thereby connecting the engine to the air reservoir. The project will culminate with an operating prototype bus, converted to run the system, being used on a regular operating schedule with a view to comparing the on-road performance with a standard vehicle and subsequent promotion of the product.