Internal-combustion engines – Six-cycle
Patent
1985-09-25
1988-04-12
Feinberg, Craig R.
Internal-combustion engines
Six-cycle
123 58B, 123 25C, 123318, F02B 7526
Patent
active
047367156
ABSTRACT:
An engine comprises an output shaft journalled in a crankcase for rotation about an axis, an even number of cylinders, each having its axis parallel to the shaft axis, arranged in diametrically opposite pairs radially equidistant from the shaft axis and equally spaced-apart circumferentially, and a piston movable axially along each cylinder. A cross-head beam for each pair of pistons is connected to the respective pistons and journalled on a carrier that is received on the shaft for rotation with and movement axially along the shaft. A mechanism selectively moves the carrier axially along the shaft to vary the clearance volumes of the cylinders. The engine operates on a six-stroke cycle consisting of a four-stroke combustion cycle followed by a two-stroke steam cycle. The water injected for the steam cycle cools the engine. The intake air for the combustion cycle is supercharged and preheated before induction. There are two intake ports for each cylinder, each having a cam-actuated intake valve, and a mechanism for selectively varying the timing of one of the intake valves of each cylinder to vary the mass of a mixture of fuel and air inducted into the respective cylinder by delaying the closing of the variable timed valve until a selected time during the upstroke of the piston.
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Feinberg Craig R.
Medicor Science, N.V.
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