| 摘要 |
<p>In an engine (10) having free floating reciprocating pistons (40) each with a cam follower (46) which bears on a tri-lobed cam (20), the pistons (40) are arranged in one or two more banks (A, B) each of four pistons (40) with each bank extending over an angular interval of 90°. Where two banks are utilized, the banks (A, B) may be separated by an angular interval of 30° or 90°. The engines (10) are physically more compact than known tri-lobed cam engines of comparable displacement. The tri-lobed cam (20) may be sinuously shaped with different profiles according to the desired characteristics of the engine (10).</p> |
