| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas exchange valve including a new valve rotator, and the new valve rotator.SOLUTION: A gas exchange valve (10) includes a valve seat disposed in a region of a cylinder head (14), a valve element capable of being lifted up from the valve seat against spring force of at least one valve spring (12, 13) to open the gas exchange valve, being pressed to the valve seat by the valve springs (12, 13) or spring force of each of the valve springs (12, 13) to close the gas exchange valve, and engaged with a valve rod (11), a valve guide (15) for the valve rod (11), and a valve rotator (16) positioned below between the cylinder head (14) and the valve springs (12, 13) or each of the valve springs (12, 13). The valve rotator (16) is constituted in a state of being floated by forming a gap (20) between the valve rotator (16) and the cylinder head (14).</p> |
