| 摘要 |
A Six Stroke 'Blackburn Cycle' internal combustion engine has the following strokes: Variable air or fuel/air induction, Compression, Power, Exhaust, Maximised 'air only' induction, 'Air only' exhaust. Inlet cam (6) opens inlet valve (13) fully via lever (7) for the alternate 'air only' inductions. The travel for the next induction through inlet valve (13) is varied by variable fulcrum (10) acting on rocker (8) via push rod (11). This gives controllable fuel/air inductions without the need for a throttle. Rocker (8) is located in position by link (10). Inlet and exhaust cams are driven at 1/3 crankshaft speed. The inlet valve opens twice with one cam form and one revolution, while the exhaust cam has two lobes to open the exhaust valves twice with one revolution. One or more inlet valves are used per cylinder. Fuel is injected directly into the cylinder as required for the fuel/air inductions or into the inlet port.
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