Nuovo Pignone Tecnologie Srl

Gianni Orsi

Alberto Babbini

Massimo Bargiacchi

Federico Puccinelli

Riccardo Maleci

Stephen Joseph Waymeyer

Federico Sorgona

Ricardo Maleci

Aigbedion Akwara

Federico Sorgona′

Federico Cappelli

Described herein is a packing box for mounting on a machinery shaft. In accordance with one aspect, the packing box housing defines a central opening for insertion of a movable machinery shaft with a hollow passageway surrounding the central opening to form a path for the flow of a fluid coolant. The passageway is provided with a fluid inlet port and a fluid outlet port opening onto the outer surface of the packing box housing, and it is formed by a single conduit or by a plurality of conduits obtained through additive manufacturing process and connected in series or in parallel to wound around the central opening.

Stuffing box for use with reciprocal moveable piston rods and method of manufacturing

It is disclosed a reciprocating compressor having a cylinder body that defines a cylinder; the cylinder may have a cylinder lateral wall and a cylinder axis A and inside it a piston is movable; at least one valve is provided to selectively open and close a valve opening formed in the cylinder lateral wall; cylinder heads at least partially protruding towards the piston inside the cylinder have a recessed surface at least partially facing the valve openings; an intersection between at least a plane containing the cylinder axis A and the recessed surface is a first curve having at least a convex part facing the valve opening.

Reciprocating compressor

A valve for a reciprocating compressor comprises a valve body having a seat and a guard; a shutter element placed between the seat and the guard and configured to move between a closed position in which the passage of fluid is prevented and an open position in which the passage of fluid is allowed; an hydraulic apparatus for moving the shutter element between the open and closed positions, the hydraulic apparatus comprising an hydraulic circuit having at least a portion integrated in the valve body.

Valve for a reciprocating compressor

Growing community of inventors

Florence, Italy

Gianni Orsi