| 摘要 |
<p>The invention discloses a valve mechanism of engine, its cylinder head and its operation method. The cylinder head on which the valve mechanism is disposed comprises valves, an intake passage and an exhaust passage. The cylinder head is designed as layered structure, the lower layer involves valves, the middle layer is divided into a leftward air passage and a rightward recover passage, wherein the air passage is provided with an air valve, the recover passage is provided with a recover valve, the upper layer involves a leftward intake passage and a rightward exhaust passage, wherein the intake passage is provided with an intake valve, the exhaust passage is provided with an exhaust valve. A common passage for intake and exhaust is disposed in the middle of the cylinder head. It can reduce the resistance during admission and discharge, and can perform scavenging.</p> |
