发动机

Engine The Lyulka-Saturn Al-31 turbojet is the main Russian engine for modern fighter aircraft.

发动机 留里卡-土星公司的Al-31涡轮风扇发动机是俄国现代战机的主力发动机。

This system can complete quickly,the realtime parametric design of turbojet,turbofan,turboprop and turboshaft engine and its parts.During designing the required information,data and structural graphics can be inquired interactively from Aeroengine Information Database and Structure Database.

该系统可以实现对涡喷、涡扇、涡轴和涡桨航空发动机部件图和总图的参数化实时设计，在参数化设计过程中提供发动机信息数据库、结构数据库的交互式查询，为设计提供所需的信息、数据和结构图形支持，可达到快速地生成供方案论证应用的各种航空发动机部件图、总图及各种信息，能快速实现多方案对比设计。

Although the valve-in-Block arrangement is a simple design. Most automotive engines are the valve-in-head type. The valve-in-head engine has certain advantages.

"虽然侧置气门发动机结构设计简单，大多数汽车发动机却都是顶置式气门，因为顶置式气门发动机确有优点。"

The second stage utilises a YF-24 rocket motor consisting of one 75-ton thrust YF-22 motor and a YF-23F swivelling venire motor with four 4.8-ton thrust chambers burning N2O4/UDMH.

第二级采用一台YF-24火箭发动机由一台75吨推力YF-22发动机和四台4.8吨推力的YF-23F发动机所组成，燃烧N2O4/UDMH推进剂。

Chassis of auto and motorcycle, vehicle frame, motor, nameplate, piston, carburetor, shock absorber, cylinder mat,transmission case, gear wheel and so on;aircraft motor, motor vane, air workpiece and so on;valve, ironware, reamer, saw, gun, pipe, fire protection equipment and so on;any other engine hardware, plastic piece, vitta and so on

汽车或摩托车底盘、车架、发动机、铭牌、活塞、化油器、减振器、汽缸垫、变速箱、齿轮等；飞机发动机、发动机叶片、航插件等；阀门、五金、刀具、锯片、枪壳、烟机、油管、电机、消防器材等；其它任意机械零件、朔料件、标牌等。

ECU as the core of the engine control system of the automobile,is very essential to its intelligence independent research intellectual property right the article gives the design plan of outomobile engine intelligent electronic of controller based on CAN including the controlling arithmic of eontrol structure of hardware and software and that is the basic preparation work for total control system

O引言 目前，我国生产的中高档轿车的发动机虽然基本上都采用了燃油电喷技术，并对电喷系统的元器件己基本具备了配套研发能力和生产能力，但却没有电喷发动机自主知识产权，均属于引进国外电喷发动机生产线或电喷系统。特别是作为核心部件的ECU却被外商掌握，ECU中的喷油

is presented allowing the adaptive simulation of tubofan compone nt performance adapting to engine particularities.The method can provide accurate simulation for component maps using nonlinear simplx optimization with primary performance particularit ies' function as objective function and coupling coefficient as optimized parameters.

本文以航空发动机部件通用特性为基础运用单纯形优化方法，以发动机主要性能参数和过程参数偏差函数最小为优化目标，以部件特性耦合因子为被优参数，发展了一种预测发动机部件特性的自适应模型方法。

Camshaftless valve actuation includes electromagnetic,electrohydraulic,electropneumatic and electromechanical types.it could vary valve timing agilely,simplify the engine's structure,deactivate some of the engine's cylinders selectively and vary the effective compression ratio flexibly to adapt different fuels.So it could offer more advantages than general variable valve timing.

阐述了在发动机上以电磁、电液、电气或其他方式驱动气门，实现无凸轮轴气门驱动，可以灵活改变气门正时，简化发动机结构，能有选择地闭缸，灵活改变发动机有效压缩比以适应多种燃料要求，使发动机获得比采用一般可变气门驱动更多的好处。

A mixed digit electronic hydromechanical control system was designed for an integrated liquid fuel ramjet engine. The control plan, the operating principle and the operating mode of the control system were introduced.

引 言2 0世纪后期，发动机控制系统由液压机械式向数字式电子控制发展，对发挥发动机的潜能、提高发动机性能和可靠性有着显著的优势。

When diesel/CNG dual-fuel turbocharge intercooling engine D6114 runs in dual-fuel mode, only diesel fuel is supplied when starting and idling, and when engine speed is beyond the preset value,electronic control system send out command to limit diesel fuel injection amount,and natural gas begin to enter into cylinder through mixer to take part in burning, at this time small a mount of diesel fuel shall play mainly a role of ignition,and engine load is changed by altering natural gas supply amount.

D6114柴油/CNG双燃料增压中冷发动机当以双燃料方式工作时，发动机起动和怠速只燃用柴油；当转速超过某设定值，电控系统发出指令限制柴油的喷油量，天然气经混合器进入气缸参与燃烧，此时少量柴油供给主要起引燃作用，发动机负荷变化则通过改变天然气供给量的大小来实现。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了