| 摘要 |
<p>Valving edges (18) formed on the connecting rod (6) control port (29) from connecting with the piston interior, ensuring that the pressure air supply is not opened to the cylinder via transfer ports (5) until the exhaust is partly completed after piston (9) uncovers exhaust port (3). After (3) is recovered, piston valve (18) allows extended cylinder filling. The exhaust through port (3) may be curtailed by a variable timing rotary valve (42, Fig. 25) acting as a restrictor and as a balancing shaft in conjunction with a contra-rotating balance shaft (40, Fig. 25). Since the crankcase is isolated from the air supply, a turbo-charger or supercharger is required.</p> |
