| 摘要 |
<p>A water channel structure for a cylinder head includes a first intake valve hole (11), a first exhaust valve hole (10), a second intake valve hole (14), a second exhaust valve hole (13) and a fuel injector sleeve (12), which are all placed on the cylinder head (21). The first intake valve hole, the first exhaust valve hole, the second intake valve hole and the second exhaust valve hole are placed around the fuel injector sleeve, and bolt holes (9), a fuel inlet hole (22) and oil return hole (15) are located on the cylinder head. A lower water channel (6) and an upper water channel (7) are placed in the cylinder head around the first intake valve hole, the first exhaust valve hole, the second intake valve hole, the second exhaust valve hole, an air inlet (17) and an air drain (18), the lower water channel is communicated with the upper water channel via a connection channel (23), a water inlet (16) connecting to the lower water channel is located at the bottom end of the cylinder head, and a water drain (19) connecting to the upper water channel is located at the top end of the cylinder head. A first communication hole (24) is located between the first exhaust valve hole and the second exhaust valve hole, the first communication hole connects one side of the lower water channel with the connection channel, and a second communication hole (25) is located between the first intake valve hole and the second intake valve hole, the second communication hole connects the other side of the lower water channel with the connection channel.</p> |
