| 摘要 |
<p>The engine comprises cylinder sections (11, 12) provided with feed chambers (15, 16) for additional fresh air. The two outer rings (4a, 4c) acting as pistons, draw in fresh air through intake ports (17a, 18b) and force that air to enter combustion chambers (13, 14) through communication ducts (9a, 9b) and ports (19, 20). The middle ring (4b) is intended for the fresh gas supply of the combustion chambers (13, 14). The radial grooves (21, 22) for fresh air are provided at a shorter distance from the ports (19, 20) than the radial grooves (8a, 8b) for fresh gas. Burned and expanded gas is first exhausted from the combustion chambers (13, 14) by fresh gas; then, the combustion chambers (13, 14) are filled with fresh gas and fresh air. Thus, exhausting unburned gas together with burned gas is avoided and an improved combustion is provided within the combustion chambers (13, 14). </p> |
