| 摘要 |
<p>A multiple intake poppet valve array for use with a single charge carrying intake duct to an engine cylinder (10) in a four cycle internal combustion engine to include three or more annular intake poppet valves (11) and annular valve seats (ports) (17) in fluid communication with said duct and said cylinder (10) for opening and sealing said duct, intake valve lifting and closing (19, 20) means, wherein the area of the duct (14), the total area of the ports, and the area of the open valves are substantially equal for optimum charge flow at a valve lift distance that occurs earlier and that extends duration when compared with a single poppet valve servicing a similar duct.</p> |
