Pumps – Motor driven – Relatively movable pumping members driven by relatively...
Patent
1975-12-23
1978-09-19
Croyle, Carlton R.
Pumps
Motor driven
Relatively movable pumping members driven by relatively...
417364, 417380, 123 51B, 123 71V, 123 74AC, F04B 1700, F04B 3500, F02B 2508, F02B 7528
Patent
active
041150376
ABSTRACT:
An engine driven reciprocating air compressor. The engine is operated in a through scavenge two-stroke mode. The engine has opposed pistons reciprocating in opposition in a cylinder, the pistons being rigidly connected to respective compressor pistons working in compressor cylinders. A crankshaft rotates about an axis perpendicular to and intersecting the engine cylinder axis. The piston pairs are directly coupled to the crankshaft by connecting rods. The crankshaft synchronizes the piston pairs, defines their strokes, and provides rotary motion for auxiliary devices. The connecting rods and crankshaft are lightweight and do not transmit full engine power. The piston pairs are provided with inward return energy from a flywheel on the crankshaft and air trapped in compressor cylinder clearance volumes. The inward faces of the compressor pistons may be used to compress fuel/air mixture to the scavenge pressure. Further vented cylinders and pistons may be used between the engine and compressor pistons to fully isolate the fuel/air mixture from the air being compressed.
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Croyle Carlton R.
Direct Power Limited
Ross Thomas I.
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