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- Method and Application of Adjusting the Needle Valve Lift in Engine Performance Test 发动机台架实验中喷油器针阀升程的调节方法及应用
- Needle valve lift 针阀升程
- Forward needle valve positions for easy access. 针形阀位置提前,便于接近。
- VTi stands for “Variable valve lift and Timing Injection”. 积分是“可变阀门升程和定时注射".
- Attach vent (yellow) hose to TC#4 and vent needle valve. 连接排气（黄）软管到测试旋塞4号和排气针形阀上。
- Open TC#3, needle valve "B ", and vent needle valve. 开启测试旋塞3号，针形阀“B”，和排气针形阀。
- Open TC#2 and needle valve "A", close needle valve "A" and TC #4. 开启测试旋塞2号和针形阀“A”，关闭针形阀“A”和测试旋塞4号。
- Close needle valve "A" high side (red) and open test cock No. 2. 关闭针形阀“A”高端（红），并开启测试旋塞2号。
- All needle valves must be closed on test kit. 检测组件上的所有针形阀必须关闭。
- Open vent needle valve and bleed air from hose. Then close vent valve. 开启排气针形阀，并从软管排放空气。然后关闭排气阀。
- Open vent needle valve fully until dripping from vent connection stops. 完全开启排气针形阀直到从排气连接处的滴漏停止为止。
- Open test cock No. 2 and needle valve "A" high side (red) on test kit. 开启测试旋塞2号和检测组件上的针形阀“A”高端（红）。
- The valve lifter, a round cylinder, rides on the cam. 气门挺杆为一圆筒体，坐落在凸轮上。
- Abstract ：In this paper, the in-cylinder flow characteristics under variable valve lift (VVL) were studied in a single-cylinder four-valve optical SI engine. 摘要 ：在一台四气门可视化光学发动机上，研究了可变气门升程下缸内气体流动特性。
- Before starting test all needle valves must be closed. 在开始检测之前,所有阀门都必须关闭。
- Before starting test, all needle valves on test kit must be closed. 在开始检测前,检测组件上的所有针形阀都必须关闭。
- Needle valves have NPS / internal pipe threaded ends. 针形阀配置NPS内管螺纹连接端口。
- The value-opening mechanism includes a valve lifter and a cam on a camshaft. 一套气门开启机构包括一个气门挺杆和一个在凸轮轴上的凸轮。
- The process uses less fuel and more air to generate power by using advanced technologies, direct injection, electric cam phasing, variable valve lift and cylinder pressure sensing. 该过程使用的燃料和更多的空气来发电用先进的技术，直接喷射，电子凸轮分阶段，可变阀门升程以及缸内压力传感.
- Open needle valve" A" high side and vent needle valve to vent air from bypass hose. 开启针形阀“A”高端和排气针形阀，从旁路软管排放空气。
