| 摘要 |
<p>The invention relates to a head (1) of cylinder (2) for a four stroke combustion engine with a valve gear with lifting valves. The head (1) of each cylinder (2) is provided with one main conduit (3), annular shaped orifice (4) leading into the cylinder (2) its axis (5) being situated in the direction of the main axis (6) of cylinder (2) and orifice (4) of main conduit (3), provided with interior valve seat (8) and exterior valve seat (9). Inside the interior valve seat (8) and exterior valve seat (9), in its closed position an annular plate (12) is situated of the sole lifting valve (7) of cylinder (2) provided by at least one stem (11). The main conduit (3) in the head (1) is divided into an inlet conduit (15) and exhaust conduit (16), where the inlet conduit (15) is provided with a valve (17) and/or with a slide valve (18).</p> |
