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分层扫气
相关语句
  stratified scavenging
     Numerical Study of Stratified Scavenging Performance of Two-Stroke Gasoline Engine
     二行程汽油机分层扫气性能的数值模拟研究
短句来源
     A study on stratified scavenging is carried out on the 2 stroke petrol engine for XF250 motorcycle.
     在XF25O摩托车用二冲程汽油机上进行了分层扫气技术的研究。
短句来源
     An Experimental Study of Stratified Scavenging of 2 Stroke Petrol Engine
     二冲程汽油机分层扫气的试验研究
短句来源
     The directly comparative test between an original and a carefully modified 250 mL two stroke motorcycle engines has shown that the brake specific fuel consumption of the lngine with air leading type stratified scavenging method is much lower than that with ordinary scavenging method. It decreases by (15~28)% at medium load and it does not exceed 350 g/(kW·h) in broad speed load range.
     对一台批量生产的排量为250mL摩托车二冲程汽油机精心改装后进行的直接对比试验表明:采用空气先导式分层扫气方法其燃油消耗比采用普通扫气时明显降低,中等负荷时降低(15~28)%,且在宽广的转速-负荷范围内,油耗不超过350g/(kW·h)。
短句来源
     Numerical Simulation of Gas Exchange of Stratified Scavenging of Two Stroke Gasoline Engine
     二冲程汽油机分层扫气系统的计算机模拟
短句来源
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  “分层扫气”译为未确定词的双语例句
     Study of Double Entry Stratified Charging on a Two Cycle Gasoline Engine
     二冲程汽油机双进气口分层扫气的研究
短句来源
     In the displacement scavenging model the effect of the short circuiting is considered.
     扫气过程采用了分层扫气模型并考虑了短路的影响。
短句来源
     The cleaning in the engine can be reached by means of activated hot-atmosphere burning, gasoline injecion, emission control valve and stratified charge.
     机内净化可着重从以下四个方面加以改进:即活性热气氛燃烧、汽油喷射法、排气控制阀和分层扫气
短句来源
     The Scavenging system is composed of crankcase, main scavenging passage, sub passage stratifying pipe, reed valve and carburettor.
     该分层扫气系统由曲轴箱、主扫气道、副扫气道、分层管、笛簧阀和化油器等组成。
短句来源
     The calculation results reveal the diminution of short mix gas and scavenging dead corner,and the appearance of distinctly gas delamination in cylinder,but the flow structures of loop and ring vortices change little.
     计算结果表明 :缸内分层扫气十分清晰 ,短路损失及死角明显减少 ,反向流动被消除。 但缸内回流 -环涡的流动结构基本不变
短句来源
  相似匹配句对
     Finally the prospect of stratified scavenging is discussed.
     最后讨论了分层扫气的发展前景。
短句来源
     Study of Two stroke Cycle Petrol Engine with Stratified Scavenging
     二行程汽油机分层扫气的研究
短句来源
     social stratification
     社会分层
短句来源
     STRATIFIED FUNCTOR
     分层函子
短句来源
     3. Simulation of scavenge process;
     3.扫气过程的模拟;
短句来源
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This paper presents a discription of a mathematical simulation of the turbocharged two-stroke diesel engine. The differential equations of the process are derived and the mathematical models of all thermodynamic systems are given. The burning rate is calculated according to the data of the heat release obtained from the pressure-time diagrams with the Lagrange interpolation formula. The instantaneous heat transfer, in cylinder is calculated by the empirical correlation given by Woschni. In the displacement scavenging...

This paper presents a discription of a mathematical simulation of the turbocharged two-stroke diesel engine. The differential equations of the process are derived and the mathematical models of all thermodynamic systems are given. The burning rate is calculated according to the data of the heat release obtained from the pressure-time diagrams with the Lagrange interpolation formula. The instantaneous heat transfer, in cylinder is calculated by the empirical correlation given by Woschni. In the displacement scavenging model the effect of the short circuiting is considered. The process occuring in the exhaust manifold is computed by the model for filling and emptying process. The turbocharger turbine is analyzed on a quasi-steady basis with given mass flow-expansion ratio characteristics and efficiency-velocity ratio curves. Steady flow is assumed and experimental performance is used to model the compressor. For the solution of differential equations on digital computer, the predictor-corrector method is combined with Wegstein method.

本文结合二冲程废气涡轮增压柴油机建立了对柴油机工作过程进行数学模拟的微分方程式,确定了各热力系统的数学模型:缸内的燃烧率是利用实测的示功图算出的放热率用插值法进行计算的。缸内的瞬时传热率计算采用了G.Woschni提出的经验公式和数据。扫气过程采用了分层扫气模型并考虑了短路的影响。排气管内的过程是用容积法计算的。增压器的配合运行是利用特性曲线在准稳定的基础上用插值法进行计算的。在数值计算中采用了PCM法(预校法)和Wegstien法结合使用的方法。

At present, 2-stroke engines are being continously researched and improved in many countries. This paper introduces several types of newly developed 2-stroke engines, such as: stratified charge 2-stroke engine, air-petrol mixture gas heating 2-stroke engine,electronic fuel injection 2-stroke engine and 2-stroke engine with supplementary piston. Though the above-mentioned engines are not commercial now,they can be taken as important reference for developing new engines.

当前各国都在对二冲程摩托车发动机不断进行研究和改进。现将已研制出的几种新型二冲程发动机:分层扫气式二冲程发动机;带辅助活塞的二冲程发动机;混合气加热式二冲程发动机;电子控制的燃油喷射装置。虽然目前这几种发动机尚未达到实用化阶段,但对新机型的开发具有重要的参考价值。

Proper fuel supply system is crucial to realize the stratified scavenging for small type oftwo-stroke gasoline engine' A simple and effective diaphragm fuel injection system (DFI) isdeveloped, which utilizes the crankcase pressure that reflects the inlet flow rate to meter andinject fuel. As the DFI system has flexible fuel injection manner, such a system when combined with a special gas exchange system, can realize stratified scavenging process.

研究开发了一种简单有效的、用于小型二冲程汽油机的膜片式燃油喷射系统(DFI).该系统利用可反映发动机循环供气量的曲轴箱脉动压力驱动膜片式油泵进行燃油的计量和喷射.由于其灵活的燃油喷射方式,该系统和专门的换气系统结合起来可实现分层扫气

 
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