Patent ID: 7980829
Filing Date: 2011-07-19
Classification: F04B,F16L,H01B,H02J

Abstract:
1. A reciprocating compressor or pump comprising: a housing defining a crank chamber; a crankshaft comprising a shaft arranged for driven rotation about an axis and a crank pin carried on the shaft eccentric to the axis within the crank chamber; a plurality of cylinders arranged to extend radially about the axis outward from the crank chamber; and a piston and rod structure comprising: and intake and exhaust valves associated with each cylinder and arranged to allow passage of fluid into the cylinder, and subsequent discharge of the fluid therefrom under exertion of pressure on the fluid by the piston during movement thereof along the cylinder away from the shaft under driven rotation thereof; the plurality of connecting rods and the central body all being defined by a single, integral, unitary piece that also defines flexible connections between said connecting rods and the central body, the plurality of connecting rods, the central body and the flexible connections all being of a common material and integral with one another, and said connecting rods being movable relative to the central body in a generally pivotal manner by flexing of the common material at the flexible connections.