| 摘要 |
<p>An invention is provided for an internal combustion engine twin power unit. The invention includes a crossover passage fluidly connecting a first cylinder to a second cylinder such that an air-fuel mixture introduced in the first cylinder is transferred to the second cylinder via the crossover passage, and wherein an ignition in any cylinder causes combustion of the air-fuel mixture in both cylinders via the crossover passage. Also included is a rod assembly, which is connected to the first piston and the second piston which are disposed in the cylinders. The rod assembly rigidly fixes the first piston and the second piston in a fixed spatial relation to each other. In addition, an intake port is included that is in fluid communication with both the first cylinder and the second cylinder. To control air passage within the intake port, a one-way valve is included. In this manner, air drawn into the first cylinder and the second cylinder via the intake port below the first piston and the second piston is prevented from escaping either cylinder via the intake port during downward motion of the first piston and the second piston. In addition, air compressed below the pistons during downward motion of the pistons escapes into the first cylinder above the first piston via the intake charge passage when the first piston clears an area of the intake charge passage, purging combustion exhaust gases from both cylinders.</p> |
