4气门直喷式柴油机的涡流形成过程

被引：2

作者：

Aoyagi Y

Yokota H

Sugihara H

瞿俊鸣

机构：

来源：

国外内燃机 | 1996年 / 28卷 / 01期

关键词：

直接喷射柴油机; 燃烧过程; 涡流; 排放;

D O I：

暂无

中图分类号：

TK421.5 [];

学科分类号：

080703 ;

摘要：

降低排气污染是柴油机一项迫切而重要的任务。每缸4气门的布置方案是实现该目标而采取的一项先进技术。阐述了使用稳态气流装置。通过试验方法2气门和4气门缸盖的缸内空气运动的形成过程。试验时,分别使用示踪激光片技术(TLS)和激光多普勒测速仪(LDV)进行显像和测速。采用示踪激光片技术和激光多普勒测速仪进行显像并测量了2气门和4气门缸盖的缸内空气运动。2气门气缸盖主要依靠螺旋气道来的强旋涡产生涡流运动。当涡流向下流过气缸时,同时由气缸中心向气缸周边扩散。与此相反,4气门气缸盖则主要依靠切向和螺旋气道来的、沿气缸周边处的强气流产生涡流运动。随着气流的继续流动,外部气流不断影响内部气流。当诸如2气门与4气门缸盖间的气流图像变化很大时,最好采用脉动式涡流计而不是叶片式涡流计来测量总涡流强度。

引用

页码：11 / 16+30 +30

页数：7

共 8 条

[1]

On Characteristics of Impulse Swirl Meter. Tanabe S 等. Perc. of COMODIA 85 .

[2]

Comparison of Calculations and Experimental Measurements of the Bulk Cylinder flow Processes in a Motored PROCO Engine. Davis G C 等. SAE Paper 790290 of COMODIA 85 .

[3]

An Investigation of Cylinder Gas Motion in the Direct Injection Diesel Engine. Tindal M J 等. SAE Paper770405 .

[4]

An Experimental Study of In-cylinder Air Motion in 4 Valves per Cylinder Engine (Ist rep.). Yokota H 等. Proc of 9th Internal Combustion Symposium . 1991

[5]

Development of a Higher Boost Turbocharged Diesel Engine for Better Fuel Economy in Heavy Vehicles. Suzuki T 等. SAE Paper830379 .

[6]

Improvement of Performance for Truck Diesel Engine. Endo S 等. Proc. of IPC6 . 1991

[7]

A New Method of Investigation of Swirl Ports. Tippelmann G. SAE Paper No. 770404 . 1977

[8]

An Experimental Study of In-Cylinder Air Motion in a 4 Valve per Cylinder Engine. Yokota H 等. JSAE Review . 1993

← 1 →