针阀升程是柴油机燃油系统的重要参数。
提供了一个气门升程连续从零到最大范围。
Provides a continuous range of valve lifts, from zero to maximum.
传统的柴油机喷油器针阀升程测量方式多为接触式。
Traditionally, the way to measure the needle displacement of oil injector is of contact pattern.
由气门加速度积分和气门升程微分得到两路气门速度信号。
Two kinds of valve velocity data were got from valve acceleration integral and displacement differential.
比较了不同光版方法对发动机配气凸轮升程曲线拟合的影响。
The effects on engine CAM lift curve by different smoothing method have been compared.
将从动件的升程曲线分为缓冲段和工作段分别进行曲线拟合；
The second was dividing the whole lift curve into two sections, the transition and working section which were fitted singly.
介绍了一种根据凸轮升程数据求取气门理论运动规律的计算方法。
A new mathematical method of valve theoretic movement rules according to the CAM lift data was introduced.
PLC控制双轴伺服进给系统，精确自动控制缸盖进给和气门升程。
Double shaft servo feed system by PLC to control accurately and automatically feed of cylinder head and valve lift.
对切向气道的动量矩流率影响更为明显，随着升程的增加影响减小。
It had more evident effects on the angular momentum flux of directional port, the higher of the lift, the less of the influence.
在大压比、大升程条件下，喉部各测点的脉动压力不大，流动稳定。
The result shows that in big pressure ratio and valve open conditions, gas fluctuation in valve seat throat is small and flow is steady.
升降式止回阀使用一个可承受弹簧载荷的轻量阀瓣，阀瓣的升程不高。
Lift check valve with a spring load can withstand light valve flap, flap valve lift is not high.
从圆柱凸轮仿形磨削加工原理入手，分析了凸轮升程误差的产生原因。
Starting from the simulated grinding processing principle of a cylindrical CAM, the author analyzed the reasons why the CAM lifting errors would be occurred.
控制器的输入信号为电磁阀升程，控制量是气门开启定时和开启持续时间。
Input signal of controller is solenoid valve lift. Control parameters are valve opening timing and valve open duration.
本文采用粒子图像测速技术研究了汽油机在不同气门升程下的气体流动规律。
In this paper, PIV (Particle Image Velocimetry) is applied to study the characteristic of in-cylinder flow field under different valve lifts.
各速度的大小和切向速度分布曲线发生较大变化，并随升程的增大而更加明显；
The magnitude of each velocity component and tangential velocity curve changed a lot and the changes were even more obvious along as increasing of the valve lift.
该方程是关于液缸内液体压力、泵阀升程与泵阀运动速度的一阶常微分方程组。
The new model is a first-order ordinary differential equation group for the fluid pressure in the cylinder...
其中石蜡的配方、不同居里点的PTC加热片是影响加浓阀升程规律的主要因素。
The formula of wax and PTC heating plates at different Curie points are the main factors influencing the enriching valve lift.
介绍了可变进气道长度、可变气门升程及可变气门定时等提高充气效率的先进技术。
It introduces some advanced technologies which increase the charging efficiency, such as the variable length of the intake duct, the variable valve stroke, the variable valve timing and so on.
已有的配气凸轮实测升程数据的优化拟合研究基本上都是针对对称型配气凸轮展开的。
Some optimum fitting methods for treating the measured lift data of the symmetrical CAM profile are presented in the previous decades.
然而此次是让VSS 达到它的母船的升程的最高点，而且使其滑翔回降直到着陆。
This time, however, the VSS was let go at the peak of its mothership's ascent, and allowed to glide back down to landing.
针对采用非设计要求测头进行凸轮测量所引发的当量转角—升程的求解方法问题进行了分析。
It analyses the method for derivation of equivalent angle-lift resulted in measuring the CAM with non-design required probe.
全可变气门机构能实现发动机配气定时和气门升程的连续可变，是可变气门技术的发展趋势。
Fully variable valve train may realize continuously variable valve timing and valve lift, and so it represents development trend of variable valve technology.
文摘：已有的配气凸轮实测升程数据的优化拟合研究基本上都是针对对称型配气凸轮展开的。
Abstract: Some optimum fitting methods for treating the measured lift data of the symmetrical CAM profile are presented in the previous decades.
凸轮机构控制巨型液压机分配阀芯时，在不同的升程阶段对凸轮理论工作曲线压力角有不同的要求。
During different lift range phases when a CAM controls the distribution spool of a giant hydraulic press, the CAM's requirement for the pressure Angle of its theoretical working profile is different.
在相对升程小于6%、压比小于0.7后，环形通道的末端将产生激波，激波带来较大的全压损失。
At the end of the annular passage, shock wave occurs when the relative lift is less than 6% and the pressure ratio is less than 0.7, which causes a greater total pressure loss.
用热线风速仪研究了缸内滚流的形成过程，发现滚流轴线与水平面的夹角随气门升程的增大而增大。
It is found that the Angle between tumble axis and horizontal plane increases with valve lift. The "tumble" is not a pure tumble, but is a inclined swirl.
本文简要介绍了可变气门正时(VVT)及可变升程技术，提出了一种简单而实用的新型凸轮结构。
This paper gives a brief introduction on the technology of variable valve timing (VVT) and variable-lift, and brings forward a new CAM structure which is simple and practical.
本文简要介绍了可变气门正时(VVT)及可变升程技术，提出了一种简单而实用的新型凸轮结构。
This paper gives a brief introduction on the technology of variable valve timing (VVT) and variable-lift, and brings forward a new CAM structure which is simple and practical.
应用推荐