| 摘要 |
<p>A gas seal between a port (10, 12) of a rotary valve (7) and a port (8) in a combustion chamber (6) of a rotary valve engine, the seal comprising gas channel means (15) forming a turbo valve means (26) surrounding the port (8) in the combustion chamber and compression means (20, 21) for creating a pressure in the gas channel means greater than a pressure in the combustion chamber during a compression stroke and a power stroke of the engine.</p> |
