1. Introduction
tensioner acting on the timing chain or timing belt of an engine, and serves as a guide to its role up tight, it is always in the best state of the tensioner. Generally divided into mechanical and hydraulic two ways, they can be automatically timing belt and the timing chain tensioner adjusting degrees.
2, action
In the timing belt or timing chain drive, the camshaft driving the valve open and close at the right time, with the piston completes the intake, compression, power and exhaust four processes. Since the timing belt and timing chain will be jumping when the high-speed operation, and a timing belt because the belt material and force, occurs stretched in long-term use, the deformation jump teeth cause the valve timing is not accurate, causing the vehicle cost oil, weakness, knocking fault. When excessive tooth jumping because the valve open prematurely or too late will close the valve piston and an uplink collision damage to the engine.
In order to make timing belts and timing chain tensioner to maintain a suitable degree, i.e. not damaged by tight nor too loose and occurs due to jumping teeth, there is a special tensioner system, a tight up and the tensioner pulley or rail components. Tensioner provide a link belt or chain pressure, tensioner pulley and a timing belt in direct contact, while the guide rail direct contact with the timing chain, which at the same time with the belt or chain operation will rise pressure tight provides applied thereon , so that they maintain a suitable degree tensioner.