Reciprocating piston engine with pumping and power cylinders

Details Reciprocating piston engine with pumping and power cylinders Reciprocating piston engine with pumping and power cylinders

1991-12-13

1993-11-30

Okonsky, David A.

Internal-combustion engines

Two-cycle

Pump and cylinder adjacent

123560, 417364, F02B 3322

Patent

active

052655644

ABSTRACT:
An internal combustion engine power unit comprises two power cylinders (3, 4) spaced equidistant about a pumping cylinder (5). All cylinders operate on two-stroke cycles, the power cylinders (3, 4) having a phase difference of 180.degree.. Power piston assemblies (13, 14) in the power cylinders (3, 4) drive crankshaft (1). Pumping piston (16) and separate crankshaft (2) are driven at twice the cyclic speed of the power pistons (13, 14) and crankshaft (1) through gear train (6, 7) between the respective crankshafts (1, 2). Air inducted into pumping cylinder (5) via intake ports (20) is compressed and passed alternately to power cylinders (3, 4) via valve controlled transfer passages (21, 24). All valves, ports and gas passages are found in a cylinder head (19). Timed fuel injection and ignition are provided. An engine may comprise one or more power units. There is also disclosed a turbo-charged diesel engine comprising two power units in "V" configuration.

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