| 摘要 |
A gas compressor having a block with two opposed cylinder banks each having at least one cylinder formed therein, each bank having an upper end, a lower end, an inner wall, an outer wall, and opposite side wall, a floor interconnecting the cylinder banks at their lower ends, and a roof interconnecting the cylinder banks at their upper ends, a crankcase formed by the inner walls, roof and floor, the crankcase having a longitudinal axis extending through the roof and floor, first bearing positioned on the floor and aligned with the longitudinal axis for rotatably mounting one end of a crankshaft, an aperture through the roof, a second bearing positioned on the roof and aligned with the longitudinal axis for rotatably mounting the other end of the crankshaft through the aperture, a piston mounted in each cylinder and each having a connecting rod mounted on the crankshaft, the adjacent edge portions of the inner wall, the side walls, the floor and the roof defining an access portal to the crankshaft and to the connecting rods through each side of the block, a drive for the crankshaft for rotating the same and reciprocating the pistons in their cylinders, and suction and discharge valving for admitting the gas to and discharging the gas from the cylinders.
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