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2-stroke diesel is the (near) future?
Proposal for a future (helicopter) engine...
2500cc two cylinder 45 degree V (120-150hp)
air cooled (cowlings)
common rail direct injection (high pressure)
supercharged (Whipple fixed displacement max. 25 psi twin-screw)
piston ported (or with LIM-type intake valve)
Has anybody ever tought of opening the intake valve (one ceneterd
valve) with (the high) diesel injection pressure?
Perhaps the valve and injector could be integrated. As the pressure is
released (at the exact right time) to the valve, it opens and lets the
supercharged compressed air rush in. As the piston rises past the
exhaust ports, the diesel fuel is injected and as the pressure quickly
drops (and simultaneously the cylinder pressure rises) the valve
Could this be feasible? Unfortunately, I am no engineer. Just a
In a two-cycle engine the integrated pump nozzles and intake valves
could be operated directly from crankshaft with push rods and rocker
arms. This would still eliminate the camshaft and the high pressure
This type of engine could prove to reliable and economical...
- diesel fuel acts as a lubricant as well (reliability)
- low parts count (reliability, low and easy maintenance, light)
- sturdy diesel parts (reliability, low maintenance)
- economical on fuel(low consumption, the use of bio-fuels, possibly a
Is this the future engine for aviation (rotor aeroplanes and
helicopters), automotive, machines, marine etc?
Cars (trains and boats as well) should be full two-mode hybrids with a
mecanical planetary drivetrain or just the combination of a diesel
generator, batteries and electric engines (to make things simple and
You could (and should) recharge the batteries from AC mains during the
night, so they are at full charge when you go off to work. They are
charged with the diesel generator and as you apply the brakes.
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