Simulation and Analysis of Interior Flow Field of Scroll Compressor's Compression Chamber 涡旋压缩机压缩腔内部流场的模拟分析
Further localisation of the cause of loss is achieved by a pressure loss test or a compression chamber endoscopy. 执行压力损失检测或燃烧室内窥镜检查可以进一步定位损失原因。
Displacement indicates engine size, and compression ratio compares the total cylinder volume to compression chamber volume. 位移表明发动机的大小,和压缩比比较气缸总容积压缩室容积。
Compression process: With the rotor rotation, compression chamber volume decreases, the gas compressed with the compression chamber until the exhaust port to the forefront. 压缩过程:随着转子旋转,压缩腔容积不断减小,气体随压缩直至压缩腔前沿转至排气口。
A Study on an Oil-Air Spring Suspension with Adverse Compression Chamber for Motor Vehicles 带反压气室油气弹簧悬架的研究陕北石油秩序
Considering the leakage and mass transfer between back-pressure cavity, compression chamber and oil system, the thermodynamic model of the back-pressure cavity for rotary vane compressor has been developed. 通过对旋叶式压缩机中背压腔、工作容积和压缩机内油路之间的泄露、和能量的转化研究,得出了一种背压腔压力的计算方法。
A study about the effect of combustion chamber passage configuration on air plow field is performed in a compression ignition natural gas engine with a separated combustion chamber using Multi-dimensional Computational Fluid Dynamics ( CFD) code. 以分隔室式天然气发动机为研究对象,利用CFD多维数值模拟计算软件,研究了燃烧室通道结构参数对压燃式天然气发动机缸内气流运动的影响。
Injecting liquid refrigerant into compression chamber also can reduce the discharge temperature and improve the performance of compressor. But the electric motor temperature will increase and the heat pump's COP becomes lower. 中间喷液方式,虽然它降低了压缩机排气温度,提高了压缩机热力性能,但增加了电机的温度,降低了系统的性能。
Otherwise slight rotation would take place with that mechanism and orbiting scroll, resulting in asymmetric pressure within compression chamber pair and radial leakage. 在无径向柔性机构的情况下,防自转机构和涡旋盘会产生微自转,可导致压缩腔对压力不对称和产生径向泄漏。
Study of Control Method of Oxygen Concentration in the Atmosphere Compression Chamber 控制空气加压舱舱内氧浓度方法的探讨
Thirdly, on the basis of the 2190T natural gas internal combustion engines, the 2190 landfill gas internal combustion engines are developed successfully by means of some important technical methods such as increasing compression ratio, modifying ignition timing, precombustion chamber ignition, turbocharging. 以2190T天然气发动机为基础,采用提高压缩比、调整点火提前角、预燃室式燃烧室、进气增压等技术措施,初步开发出2190垃圾填埋气内燃机。
This paper presents a newly designed compression ignition divided chamber combustion system of the natural gas engine. 本文介绍了压缩着火天然气发动机的一个新的燃烧系统,这个燃烧系统具有分隔式燃烧室。
【 Objective 】 To explore the control method of oxygen concentration in the atmosphere compression chamber. 【目的】探讨空气加压舱舱内氧浓度的控制。
Effects of different compression ratios ( 13~ 19) and designed combustion chamber shapes on combustion and HC emissions were studied. 设计了不同参数的燃烧室,研究了不同压缩比(13~19)和燃烧室形状对柴油机燃烧及HC排放的影响。
The intake, compression and combustion process of the shallow bowl and swirl chamber spark-ignition natural gas engine was simulated to study the effect of the chamber structure on combustion of the natural gas engine. 为了研究燃烧室结构对天然气发动机燃烧过程的影响,模拟了浅盆形和涡流室式燃烧室结构的天然气发动机的进气、压缩及燃烧过程。
This paper analyzes effects of the following parameters, such as the piston compression ratio, combustion chamber, injection pump, supercharger, injection nozzle coupling, medium-cooled temperature on exhaust from the angle of test. 从试验的角度分析了柴油机的活塞压缩比、燃烧室、喷油泵、增压器、喷油嘴偶件、中冷温度等参数对排放的影响;
Based on the thermodynamics compressing processes in the compression chamber are analyzed in detail and some equations for calculating air-condition load have been derived. 通过空气调节器,既可从舱中带走热量,又可以补充热量。本文根据热力学,详细地分析了加压舱的加压过程,并由此推导出一些热负荷计算公式。
Simulation of the compression and bursting of the charge bed in the chamber is one of the key problems in the study of launching safety of gun propellant charge. 发射药床挤压破碎的物理仿真是火炮发射装药发射安全性研究的关键技术。
Methods 18 rats were divided into 3 groups randomly. They were placed into compression chamber to study by compression and decompression in lucid state so that the decompression injury was formed. 方法大鼠18只,随机分为3组,清醒状态置于加压舱内,进行加、减压实验,造成急性减压损伤。
During the whole compression process, the characteristic of maximum compression pressure and minimum distortion restitution force of grass piece in the different position of compression chamber had distinct difference. Though the above two forces occurred in every compression process, however, they had the essential difference. 压缩全过程草片在压缩室各个位置上的最大压缩力与最小变形恢复力的特性存在明显的差异,这是因两个力虽然在每次压缩时均出现,但存在本质区别造成的。
The experiment is successful and the result shows that high turbulence intensity is reached at the end of compression stroke in the new type combustion chamber. 结果显示:在压缩终了附近,这种新型燃烧室中的紊流场具有高的紊流强度。
A parallel-synchronous nebulization administration device used in compression chamber 加压舱内使用的并联同步雾化给药装置
Design and Analysis of the Compression Chamber of a Pressure Filter 加压过滤机加压仓的设计与分析
Effects of combustion chamber parameters on combustion characteristics were studied in a compression ignited natural gas engine with separated chamber by coupling the detailed chemical kinetic mechanism with multi-dimensional Computational Fluid Dynamic ( CFD) code. 利用详细的化学动力学机理与CFD多维数值模拟计算软件研究了燃烧室结构参数对分隔室压燃式天然气发动机燃烧特性的影响。
CFD simulation shows that, for late injection case, there is intensive concentration stratified near combustion chamber wall. And high temperature combustion region, which is relatively narrow, is distributed in compression clearance and near combustion chamber wall. CFD模拟表明,晚喷在燃烧室壁面附近有较强烈的浓度分层,高温燃烧区范围较窄,主要分布在压缩余隙和燃烧室壁面附近。
The scroll air compressor is a kind of fluid mechanical which gas compression is implemented by changing the capacity chamber volume. 涡旋空气压缩机是一种通过改变容腔容积来实现气体压缩的空气压缩机。
Regarding to the demand of actual production and experiment, designed and produced a sectional dimension adjustable of compression chamber, and pressure Detroit sectional dimension adjustable compression test bench. 根据实际生产需要以及试验要求,设计出了压缩室截面尺寸可调、压头(活塞)截面尺寸可调压缩试验台。
The effect of squeeze flow area of combustion chamber, combustion chamber recess fillet, compression clearance and combustion chamber recess depth on the gas flow movement in the cylinder, ignition, flame development and propagation was studied. 研究燃烧室挤流而积、燃烧室凹坑圆角、压缩余隙、燃烧室凹坑深度对缸内气流运动及点火和火焰发展、传播的影响。