VE型喷油泵的调试方法及故障排除

VE型喷油泵具有结构紧凑、性能齐全、重量轻、噪声小、寿命长及使用维修方便等特点，适配于多种轻型汽车的柴油发动机，本文以日产达特桑小客车（六缸柴油机）为例，简要将该喷油泵的调试及故障排除方法介绍如下。     

如何正确调试VE型喷油泵

<正>1最大供油量的调整VE型喷油泵的供油量大小是靠控制柱塞泄油孔的行程长度来调节的(俗称断油计量)。油量调整杠杆可绕固定于泵体的支点,而调速杠杆可绕固定于油量调整杠杆上的支点转动。当需要调整供油量(如标定工况供油量)时,可松开锁紧螺母,将油量调节螺钉旋出(减少供油量)或旋入(增大供油量)。     

如何正确调试VE型喷油泵

最大供油量的调整VE型喷油泵的供油量大小是靠控制柱塞泄油孔的行程长度来调节的（俗称断油计量）。油量调整杠杆可绕固定于泵体的支点,而调速杠杆可绕固定于油量调整杠杆上的支点转动。当需要调整供油量（如标定工况供油量）时,可松开锁紧螺母,将油量调节螺钉旋出（减少供油量）或旋入（增大洪油量）。     

燃油泵自动测试机

最新的汽油泵测试机已经由SPE研发成功,并在邦迪管路系统有限公司天津分公司应用,取得不俗成效。     

汽车动力性检测模型的建立

通过对驱动和反拖两种状态的力学分析，建立了汽车动力性检测模型，利用反拖方法，求出车轮正驱动时的滚动阻力系数，进而求出驱动轮输出扭矩，最终计算发动机输出功率，以此评价汽车动力性。     

Development of ceramic roller-bushings for diesel distributor-type fuel injection pump

Silicon nitride ceramics has been applied to roller-bushings for a diesel distributor-type fuel injection pump in order to improve the seizure resistance. It was found that ceramic roller-bushings made it possible to improve the seizure load by more than three times as much as conventional metal roller-bushings when kerosene was used as the lubricant. The ceramic roller-bushings proved to be durable under engine operating conditions.     

A nonlinear model for top fuel dragster dynamic performance assessment

The top fuel dragster is the fastest and quickest vehicle in drag racing. This vehicle is capable of travelling a quarter mile in less than 4.5 s, reaching a final speed in excess of 330 miles per hour. The average power delivered by its engine exceeds 7000 Hp. To analyse and eventually increase the performance of a top fuel dragster, a dynamic model of the vehicle is developed. Longitudinal, vertical, and pitching chassis motions are considered, as well as drive-train dynamics. The aerodynamics of the vehicle, the engine characteristics, and the force due to the combustion gases are incorporated into the model. Further, a simplified model of the traction characteristics of the rear tyres is developed where the traction is calculated as a function of the slip ratio and the velocity. The resulting nonlinear, coupled differential equations of motion are solved using a fourth-order Runge–Kutta numerical integration scheme. Several simulation runs are made to investigate the effects of the aerodynamics and of the engine's initial torque in the performance of the vehicle. The results of the computational simulations are scrutinised by comparisons with data from actual dragster races. Ultimately, the proposed dynamic model of the dragster can be used to improve the aerodynamics, the engine and clutch set-ups of the vehicle, and possibly facilitate the redesign of the dragster.     

燃油品质对依维柯汽车喷油泵性能的影响

叙述了柱塞偶件密封对油泵供油特性以及燃油中磨料粒度对柱塞偶件磨损的影响，说明燃油品质会影响IVECO汽车VE分配泵的工作性能。     

塑料加油口盖厂内喷涂工艺规划研究

文章首先介绍了塑料加油口盖基材选择及验证的要点,然后从加油口盖及其夹具的安装、加油口盖喷漆及烘烤、质量检查及报交三个方面阐述了塑料加油口盖厂内喷涂工艺规划过程中的注意事项。最后列举了加油口盖可视区漆薄、卡扣漆厚、零件变形和边缘针孔等常见质量问题并分别介绍了其解决方法和控制措施。     

客车油箱托梁加工工艺方案剖析

客车零件加工工艺方案的制定与模具设计是客车零件生产前的两项十分重要的技术准备。如何寻求最佳的加工工艺方案,选择最佳的模具结构,是提高企业经济效益的着眼点,也是企业工艺工作的重点。     

WBZ21型稳定土拌和机行走系统及燃油泵故障的诊断处理

针对WBZ21型稳定土拌和机在施工中其行走系统和燃油泵截流阀所发生的故障问题，提出了一系列故障诊断及排除方法。     

轻型车美标油耗五工况测试方法研究

在全球排放和油耗法规里美国标准是最为严格的,从中国油耗法规不断加严的现实国情出发,对轻型车美标油耗的测试方法进行研究是很有必要的。美国最新油耗测试方法包括了五个循环工况,涵盖了低温启动,空调使用,野蛮驾驶等实际车辆行驶中会遇到的情况,对车辆的考核比较全面务实。本文利用中汽中心已有的试验测试设备,对美标五工况循环测试方法以及测试结果的加权计算方法进行研究,从而形成完整的美标油耗测试规程,为后续相关研究奠定基础。     

城市客车节能减排性能评价指标及试验方法探讨

液压混合动力城市客车是以发动机动力与液压动力相混合的新型城市客车,具有节能效率高、减排能力强的优点.由于液压混合动力的结构特点与技术特点,其节能、减排性能的评价指标与评价方式也有其特殊性.本文针对液压混合动力城市客车的特点,探讨了液压混合动力城市客车的节能减排性能评价指标及评价方法.