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  • The Working Principle of Car Water PumpThe Working Principle of Car Water Pump2019/05/21The engine drives the water pump bearing and the impeller through the pulley. The coolant in the water pump is rotated by the impeller, and is deflected by the centrifugal force to the edge of the wat...
  • Key Technical Characteristics of the VVT SystemKey Technical Characteristics of the VVT System2019/05/19The ultimate goal of the VVT system is to achieve real-time adjustment and control of camshaft timing. Like other control systems, the most critical technical features are as follows:(1) Response spee...
  • Working Principle and Structure of VVT systemWorking Principle and Structure of VVT system2019/05/17This paper takes the hydraulically driven VVT system used in most of the production models in the Chinese automoblie market as an example:VVT System SchematicThe VVT system in the above figure mainly ...
  • The Working Process of VVT systemThe Working Process of VVT system2019/05/15In order to better explain the working process of the VVT system, the following takes the intake VVT as an example to summarize the three most basic working processes:1. Reference position: The duty c...
  • The OCV Oil Control Valve Structure of VVT SystemThe OCV Oil Control Valve Structure of VVT System2019/05/13The VVT system's OCV valve is a proportional valve, that is, the movement position of the spool is proportional to the PWM duty ratio provided by the ECU of the engine to the OCV coil. When the duty r...
  • Repair after Crankshaft WearRepair after Crankshaft Wear2019/05/11Generally speaking, the axle journal diameter is below 80mm, the crankshaft with the roundness and cylindricity error exceeds 0.025mm; or the axle journal diameter is above 80mm, the crankshaft with r...
  • Causes of Damage to the Clutch Release BearingCauses of Damage to the Clutch Release Bearing2019/05/09The separation bearing is subjected to axial load, impact load and radial centrifugal force during high-speed rotation during use, and since the fork thrust and the reaction force of the separation le...
  • Causes of Engine Crankshaft FractureCauses of Engine Crankshaft Fracture2019/05/07First, the rounded corners of the crankshaft journal are too small.When grinding the crankshaft, the grinder fails to properly control the shaft fillet of the crankshaft. In addition to the rough mach...
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