Multi-valve

Most of the traditional engines are one intake valve and one exhaust valve per cylinder. This two-valve gas distribution mechanism is relatively simple and the manufacturing cost is low. For an ordinary engine whose output power is not so high, it can obtain comparatively good results. Satisfactory engine output power and torque performance. Large-displacement, high-power engines use multi-valve technology. The simplest multi-valve technology is the three-valve structure, which is based on an intake valve and a two-valve structure. In recent years, most of the cars newly developed by major automobile companies in the world have adopted the four-valve structure. In the four-valve gas distribution mechanism, each cylinder has two intake valves and two exhaust valves. The four-valve structure can greatly improve the efficiency of the engine's intake and exhaust, and most of the new cars use four-valve technology.