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本文介绍最高转速为1800r/min、涵盖从直列式6缸到V型12缸的全新重载柴油机和双燃料发动机系列在研制过程中所采用的技术和方法。文中讨论了为使发动机燃油消耗率降低到同类产品的最低值而采用的电子控制高压共轨喷射系统、高效涡轮增压器、带有独立气口的横流式气缸盖和其他发动机的设计策略。发动机性能模型的开发展示了设计组和分析组在组件设计几何和模拟模型创建中的协调配合,实现了性能和可制造性之间最佳的折衷。工程师之间的交流是理解整个发动机性能、提高现有技术、超越以往发动机设计的关键因素。文中还介绍了就该机与用户达成一致的设计方针,包括可靠性、成本、重量、尺寸、可再利用性和性能。文中将以实际的低成本设计方案为例,说明这些方针对诸如曲轴箱和梯形机架等部件的影响。设计发动机采用的方法也在文中加以介绍,特别是同步工程的采用,可以集聚公司所有发动机运行技术,并在初期阶段就应用到设计中,在尽可能短的工期内确保设计一次成功。文中还概述了同步工程法等对项目的影响和在设计改进过程中所起的作用。工程所取得的成果是开发了一种完整系列的高速重载发动机,其拥有同类产品中最佳的燃油消耗率、良好的比功率水平,显示了Technomots公司与发动机制造商密切合作推出新产品的能力。
This article describes techniques and methods used in the development of new heavy-duty and dual-fuel engines ranging from in-line 6-cylinder to V-12 cylinders with a maximum speed of 1800 r / min. The article discusses the design strategy for electronically controlled high pressure common rail injection systems, high-efficiency turbochargers, cross-flow cylinder heads with independent ports, and other engines that are used to reduce engine fuel consumption to a minimum of similar products. The development of the engine performance model demonstrates the coordination between the design and analysis groups in the design geometry of the assembly and the creation of the simulation model, resulting in the best compromise between performance and manufacturability. Communication between engineers is a key factor to understand the entire engine performance, improve the existing technology, beyond the previous engine design. The article also introduced on the aircraft and the user agreed design guidelines, including reliability, cost, weight, size, reusability and performance. The article will use actual low-cost design scenarios as an example to illustrate the impact of these guidelines on components such as crank cases and trapezoidal racks. The method used to design the engine is also described in the text. In particular, the use of synchronous engineering allows all of the company’s engine operating technology to be assembled and applied to the design at an early stage to ensure a successful design in the shortest possible duration. The article also outlines the impact of simultaneous engineering law on the project and its role in the process of design improvement. The result of the project was the development of a complete line of high-speed, heavy-duty engines with the best fuel consumption rates and good specific power levels in their class, showing how Technomots works closely with engine manufacturers to launch new products ability.