| 摘要 |
<p>A four-stroke engine comprising a stationary inner cylinder block (2) and a rotatable outer elliptical rim (1, 3) coupled with an output shaft, the cylinder block (2) having four cylinders (28) arranged in an X-shape and each including a reciprocating piston (8), each piston (8) being arranged to face each other and being pivotally connected to a connecting rod (9), each connecting rod (9) being directed radially outwardly and being pivotally connected to a guiding arm (10) which is in turn pivotally connected to the cylinder block (2), wherein the pistons (8) are successively positioned to operate in their four strokes so as to push the connecting rod (9) of the piston (8) operating in the power stroke against the elliptical rim (1, 3) to convert the reciprocating motion of the piston (8) operating in the power stroke into a rotating motion of the elliptical rim (1, 3).</p> |
