What is the car timing tensioner
Automotive timing tensioner is an important device in the transmission system of automotive engine timing belt or timing chain. Its main function is to guide and tighten the timing belt or chain to ensure that it is kept in the best tensioning state. In the transmission process, the timing belt or chain is responsible for driving the camshaft to open and close the valve on time, and complete the four processes of intake, compression, work and exhaust with the piston. However, these parts will pulsate when running at medium and high speed, and will be elongated and deformed due to material and force problems during long-term use, resulting in inaccurate valve timing, resulting in vehicle fuel costs, insufficient power, knocking and other problems. In serious cases, too many skip teeth can also cause the valve to collide with the upstream piston, damaging the engine .
Working principle
The timing tensioner performs its function through a specialized tensioner system consisting of a tensioner, a tensioner wheel or a guide rail. The tensioner provides pressure to the belt or chain, the tensioner is in direct contact with the timing belt, and the guide is in direct contact with the timing chain. In the process of running with the belt or chain, they apply the pressure of the tensioner to the belt or chain to maintain the ideal tensioning condition .
type
There are many types of timing tensioner, mainly including fixed structure and elastic automatic adjustment structure. Fixed structure often uses fixed adjustable sprocket to adjust the belt or chain tension degree; The elastic automatic adjustment structure relies on elastic components to automatically control the tension of the belt or chain, and can automatically rebound. In addition, the timing tensioner used in modern automobiles is generally divided into two ways: hydraulic and mechanical, which can automatically adjust the tension of the timing belt and timing chain to ensure the normal operation of the engine .
The main function of the automotive timing tensioner is to ensure that the timing belt or timing chain of the engine is always in the best tightening condition . Specifically, the tensioner ensures the stability and reliability of the engine timing system by automatically adjusting the tension of the timing belt or chain to prevent it from becoming loose or overly tight.
Working principle and type
The tensioner can be operated by both hydraulic and mechanical means. The oil pressure tensioner relies on the pressure of the engine oil to adjust the tension, while the mechanical tensioner adjusts the tension through a mechanical structure such as a spring. Either way, the tensioner can automatically adjust the tension to ensure the normal operation of the timing system .
Structural composition
The tensioner usually consists of a tensioner and a tensioner wheel or guide rail. The tensioner provides pressure, the tensioner wheel is in direct contact with the timing belt, and the guide rail is in contact with the timing chain to keep them properly tensioned during operation. This design ensures that the timing belt and timing chain are always in the best condition of tightening during transmission .
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