valve timing gear

The new technology and new structure of model AJR engine applied in Santana 2000 car is introduced, including light valve gear, camshaft, tappet friction pair, timing transmission system, lubricating system and cooling system.

对桑塔纳2000轿车用AJR发动机从以下几个方面：轻型气门机构、凸轮轴和挺杆摩擦副、正时传动系统、润滑系统和冷却系统的新技术、新结构作了概要分析。

The causes of phase variation in air supply obtained after analysis are mainly errors in manufacture, abuse in operation and errors in repair. Several adjusting methods for correct installation of timing gears, inspection of meshing clearance of gear faces and adjustment of valve clearance are suggested.

分析了配气相位变化的原因主要是制造误差、使用不当和修配误差等，提出了正确安装正时齿轮、检查齿面啮合间隙和调整气门脚间隙等几种调整方法。