升程

测定喷油量与针阀升程、喷油时间、主轴转速、喷油压力的关系。（3）喷油量计算公式中修正系数K的确定。

Relation of quantity of fuel injection and needle vavle lift , rotation speed and pressure is got .

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 .

利用EXCEL对针阀升程信号的波形进行回归分析，建立针阀升程曲线的数学模型。

Wave shape is analysed by EXCEL , and mathematic module is built .

基于VB的凸轮轴升程检测系统

Camshaft lifting measuring system base on VB

针对可变升程机构，采用了经典的PID控制方法；

For Variable Valve Lift ( VVL ) system , classical PID control arithmetic was adopted as the main control strategy .

实验得到了各种阀片的刚性系数k、应变量με与特征升程h0的关系曲线。

The curves describing the relation between stiffness coefficient K , deformation με and characteristic lift ho for various valve plate have been plotted .

并进行了实例分析，利用MATLAB软件得到了阀球的升程曲线和速度曲线，为分析球阀在气液两相复杂工况下的运动特性提供基础。4.对球阀内部流场时行了数值模拟。

An example was analyzed , then the ball valve lift curves and speed curves were got by using the MATLAB software . 4 .

为准确检测凸轮轴升程数据，设计开发了一套基于VB的简易、有效的测量系统。

The test system is based on VB and used to test the data of camshaft 's rising journey correctly .

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 .

非对称N次谐波凸轮的气门上升段的气门开启速度可取得较大，并将缓冲段包角增大，可以有效地提高上升段的挺柱升程丰满系数，改善充气性能；

It is proposed that there is a quicker valve-opening speed during the lift of the valve with asymmetrical , N-times harmonic wave cam , and an enlarged wrap angle during the buffer , which can effectively increase the lifting range of tappet stem and approve charging ;

全可变气门机构（fullyvariablevalvesystem，简称FVVS）可实现气门最大升程、气门开启持续角和配气相位三者的连续可变，对发动机的节能减排具有重要意义。

Fully variable valve system ( FVVS ) can realize the continuous variability of the maximum valve lift , the valve opening duration and the valve timing . So there is an important significance to energy conservation and emission reduction of the engine .

凸轮的已知条件可为升程表或r（θ）关系式，两者可用数学方法进行转换，针对两种已知条件分别推导了两种砂轮中心位移数学模型。

According to the rise-range table and relationship of r ( θ ), two kinds of mathematic model is deducted to adapt different known conditions , and the first one can be applicable for all kinds of tappet including deviation one , and it is more universal .

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 .

然后应用大型有限元显式动力分析软件ANSYS／LS-DYNA，采用三维有限元模型动态分析了环状阀工作过程中阀片与升程限制器及阀座正碰撞和倾侧碰撞的冲击应力。

And then , the impact load stress on the working process of the ring valve is analyzed by means of ANSYS / LS-DYNA , large-scale explicit dynamics finite element analysis software , with the three-dimensional dynamic finite element model .

使用FLUENT商业软件，采用RNGk-ε湍流模型，对稳定流动实验条件下，不同进气道角度时切向进气道-气门-气缸内的流场，在两种气门升程下进行了三维数值模拟；

The three-dimensional numerical simulation has been made on the steady flow field in the tangential inlet port-valve-cylinder with RNG k - ε turbulent model by using commercial code FLUENT under the conditions of two valve lifts .

切换凸轮型线VVT机构通过高、低速摇臂的切换来实现不同转速的气门升程控制和正时系统。

The switching cam profile variable valve timing ( VVT ) mechanism is able to control valve lifting and timing system through higher and lower intake rockers at different engine speed .

该气门机构运动学数学模型的仿真结果与CATIA几何模型运动学仿真分析结果一致，证实了该数学模型的正确性，为设计连续可变气门升程机构提供了理论依据。

The results of mathematical model of valve train kinematics simulation are consistent with the CATIA geometric model . In this way , this article confirms the correctness of the mathematical model and provides a theoretical basis for the design of continuously variable valve .

凸轮机构气门升程的新算法

The New Way of Calculation on Valve Lift of Cam Mechanism

蝶阀刚性密封的实现环状阀升程

Butterfly Valve with Rigid Sealing THE LIFE OF RING TYPE VALVE

凸轮升程误差曲线的鉴别与校正

Discrimination and Correction of an Error Curve of Cam Follower Lift

高冲次往复泵阀盘升程的设计建议

Designing Suggestion of High Stroke Reciprocating Pump Valve Disk Raising Program

用最优化方法计算拟合实测配气凸轮升程数据

The Fitting of the Measured Cam Lift Data by Optimization Method

最后，介绍了一种根据实测升程表复制凸轮廓线的简便方法。

A simple and convenient method reproducing cam profile is recommended .

该机构能够实现气门升程的连续可变。

The actuator can realize valve timing continual varied change .

摩托车用可变气门定时及升程调速机构

Variable Valve Timing and Lift Speed Governing Device for Motorcycle

凸轮升程和相位角的检测与评定方法

Examination and Evaluation Method of Cam Life and Phase Angle

砂轮磨损对凸轮升程误差的影响

The Effect of Grinding wheel Wear on Cam Replacement Error

基于三次样条函数拟合的凸轮升程误差评定方法

Method of Cam Lifting Error Measurement Based on Tertiary Sample Functional Combinations

气缸套的高频淬火不同形状挺杆对应的升程分析

High Frequency Quencher in Cylinder Liner Analysis on Lift-range of Different Tappets

凸轮升程转换通用数学模型与试验研究

A universal mathematical model and its experimental research on cam lift conversion