| 摘要 |
An internal combustion engine includes a plurality of cylinders each containing a reciprocative piston connected to an output rotary power shaft. The cylinders communicate with a common fuel chamber sequentially through a rotary distribution valve driven by the output power shaft. Starting of the engine is achieved by delivering gaseous fluid to the fuel chamber and thence through the distribution valve to a cylinder under pressure sufficient to drive the piston inward in a power stroke. Combustible fuel is delivered to the fuel chamber at a pressure greater than cylinder combustion pressure, and combustion air is delivered to each cylinder from a source of external air under pressure through an inlet port which is opened and closed by the associated piston adjacent the bottom of the stroke thereof. Some of the hot gases of combustion in each cylinder are delivered back to the fuel chamber through the distribution valve at a temperature above the ignition temperature of the fuel and at a pressure above the compression pressure of the cylinder. When the distribution valve communicates the fuel chamber with the next succeeding cylinder in the operating sequence, the rich fuel mixture in the fuel chamber is delivered to said cylinder where it mixes with combustion air and is ignited, driving the associated piston inward to effect a second power stroke.
|
