缸内喷射

本文借助缸内喷射CO2，研究了喷射参数的影响、负荷范围的拓展和燃烧的闭环控制等方面。

By using this new method , effects of injection parameters , load expansion and closed-loop combustion control are studied .

这说明，所开发的空气辅助喷射系统能够进一步完善LPG缸内喷射，但是该系统过于复杂，只能在实验室环境下应用，实用性比较差，需要进一步改进。

It shows that the air-assisted injection system improved emission of the LPG engine of direct injection .

汽油缸内喷射喷雾特性的三维数值模拟

Three-Dimensional Numerical Simulation of Gasoline Direct Injection Spray Characteristics

天然气发动机；缸内喷射；研究；

Nataral gas engine ; In-cylinder injection ; Study ;

对缸内喷射天然气发动机与进气门处喷射天然气发动机、汽油机的性能进行了分析对比。

The performance of natural gas engine is compared with that of gasoline engine and port injection natural gas engine .

用三维计算流体力学软件模拟了汽油缸内喷射的静态喷雾特性，研究了燃烧室压力、初始液滴直径和喷雾锥角对喷雾特性的影响，并与试验结果进行了比较。

This paper simulates the gasoline direct injection spray in the cylinder and investigates the effects of chamber pressure , initial droplet diameter and spray cone angle on spray structure and configuration . Computational results are compared with experimental ones .

液化石油气（LPG）缸内直接喷射发动机，是LPG发动机发展趋势。

LPG Direct Injection Engine is the LPG Engine 's development current .

电控LPG发动机及其缸内直接喷射技术的研究

Study on Electronic Controlled LPG Fueled Engine and Its Direct Injection Technology

缸内直接喷射应用于LPG发动机的研究

A Study of the Application of In - Cylinder Direct Injection to LPG Engines

在进行了LPG发动机缸内直接喷射研究基础上，研制了一套带有背压装置新型LPG缸内直接喷射系统。

Based on the study on the LPG direction injection system , we developed a new type LPG direction injection system that contains back press equipment .

并与实验室早期丌发的缸内直接喷射方式相比，LPG空气辅助喷射方式下的发动机动力性与缸内直接喷射接近，但是排放性能相比缸内直接喷射有了较大的改善。

And compared with the LPG engine of direct injection , the power performance of the LPG air-assisted engine that was closed to the direct injection engine , but the performance of emission becomes better .

对研制的新型LPG缸内直接喷射系统的控制策略以及控制软硬件优化，改进了喷射系统驱动电路及软件的设计。

Optimize the control policy and of the new type LPG Direct Injection system . Improved the electronic controlled unit soft and hard ware , especially the injection system drive circuit and the soft ware design .

设计了一套适用于台架试验的电控缸内直接喷射LPG发动机的燃料供给系统，主要包括初级增压系统，高压产生装置，高压喷射系统三大部分。

The main contents are as follows : A fuel-supplying system for direct injection electronic-controlled engine fueled with LPG in the lab condition , including the primary pressure system , the high-pressure producing device and the injection system with high-pressure , has been developed .

结果表明，液态LPG缸内直接喷射发动机的最大扭矩较燃用汽油时提高约10%，能有效解决LPG常规供应方式发动机动力性下降的问题，具有良好的发展前景。

The results show with the direct liquid jet in the cylinder , the maximum torque of LPG engine is 10 % more than that of gasoline engine . The technology can solve the problem of the tail gas pollution of motorcycle , and have bright future .

将汽油缸内直接喷射技术（GDI）用于LPG发动机，以根本解决其动力性下降的缺点，并进一步提高燃料经济性和排放水平，满足现代车用发动机的要求。

In order to solve the problem of power losses and to improve the fuel economy & the emission level , the research purpose of this paper is using GDI technology on LPG-fueled engines ; and the engines can satisfy the demand of modem vehicles .

缸内直接喷射式汽油机点火稳定性的数值分析

Numerical Analysis on the Ignition Stability in Direct Injection Gasoline Engines

在缸内，喷射燃油将与环境因素发生一系列复杂的物理作用。

In cylinder , spray fuel has a serial physical interactions with circumstance .

缸内直接喷射汽油机的新技术缸内电子喷射汽油机的研究进展

New Technologies of Gasoline Direct Injection Engines THE STATE OF ART OF GASOLINE DIRECT INJECTION INTO CYLINDER

研究了由电控阀和柴油机喷嘴构成的用于缸内直接喷射的组合式电控喷射器，并成功地用于实验。

The injector of direct injection is assembled from electronic controlled valve and diesel injector , and it is used in the experiment .

本文就当今车用发动机排放、多气门发动机、缸内汽油喷射技术、代用燃料的利用和其他动力等问题进行分析和探讨。

This paper analyses and discusses problems of engine 's emission , multi-valves engine , in-cylinder gasoline injection technology , alternative fuel and other power .

缸内直接喷射式汽油机的一个显著特点是依靠火花塞点燃喷入缸内的汽油油束。

The combustion process of direct injection ( DI ) gasoline engines relies on the spark ignition of the fuel spray injected into the cylinder .

缸内直接喷射式汽油机，要求部分负荷时在压缩过程后期喷入燃油，实现混合气分层燃烧，以获得好的经济性；

For gasoline direct injection ( GDI ) engines , the fuel is required to be injected into the cylinder near the end of the compression stroke to realize the stratified charge combustion at part load .

为提高天然气发动机的动力性、经济性和排放性能，采用了缸内直接喷射天然气的方法，并对点火正时和空燃比实施了自适应控制。

For raising the power performance , improving the fuel economy and reducing the emissions of nature-gas engine , the in-cylinder direct injection of natural gas and self-adaptive control of ignition timing and air-fuel ratio were adopted .

汽车柴油机喷射控制单元是对缸内高压喷射的电子控制，其难点在于高速强力电磁阀的功率驱动硬件和基于角度的喷射实时控制软件。

ECU for automotive diesel injection performs the electronic control of high pressure injection in cylinder , which is hampered by the hardware for driving of high-speed powerful solenoid valve and the software for real-time control of crank angle-based injection .

与进气道气态喷射方式和进气道液态喷射方式相比，缸内直接喷射方式下的发动机动力性得到显著提高，但是排放性能变差。

Compared with the LPG engine of intake gaseous injection and intake liquid injection , the power performance of the LPG engine that works under the circumstance of direct injection is improved greatly , but the performance of emission becomes worse .

理论和实验证明，缸内高压直接喷射是解决二冲程汽油机燃油短路损失的有效途径之一。

The theorys and the experiments proved that the high_press direct in_cylinder injection is one of the effective ways to solve the fuel escapes unburned .

结果表明，对煤液化燃料加热使之在缸内形成闪急喷射可大大改善柴油机的燃烧状况。

Applies double injection and flashing-boiling injection system to a3E150 diesel engine to study the combustion of the coal liquids .

对喷气能量的估算表明：喷气带入缸内的动量和动能远大于缸内气体和喷射燃油的动量和动能。

Estimation of CO2 injection energy reveals that momentum and kinetic energy of injected gas are larger than those of in-cylinder gas and injected fuel .

缸内直喷又可细分为气体燃料缸内直接低压喷射、电热塞助燃缸内高压直接喷射、油气共用泵喷嘴缸内高压直接喷射。

The latter includes low pressure in-cylinder fuel direct injection , glow plug combusting-supporting high pressure in-cylinder direct fuel injection and oil gas sharing pump injecting nozzle high pressure in-cylinder direct fuel injection .