Nuovo Pignone Holding S.p.a.

General Electric Company

Nuovopigone - Industrie Meccaniche E Fonderia S.p.a.

Franco Graziani

Simone Pratesi

Herbert Kopecek

Siegfried Silber

Wolfgang Amrhein

Rudolf Scheidl

Massimo Iacobelli

Michael Bernhard Schmitz

Paolo Battagli

Andrea Giusti

Francesco Grillo

Piero Morganti

Bart Jan Olmi

Thomas Feichtner

Bernhard Karl Steiner

A valve comprises an electromagnetic actuator including a solenoid. The solenoid includes at least one core and an anchor plate. The solenoid further comprises at least one coil disposed within the core and connected to a set of power electronics to supply current to the coils. The actuator further comprises a plunger connected to the anchor plate and at least one spring configured to guide the plunger. The actuator also includes a pressure compensation system. The opening and closing of the valve is controlled by passing current through the coil.

Electromagnetic actuators

A connection between a rod and crosshead in a reciprocating compressor includes threaded units, an anti-rotational securing device and axial positioning elements, wherein the threaded units has a first inner lock nut, provided with an inner thread onto which there is screwed a threaded end portion of the rod and provided with two outer threads with a different diameter, one of which is for connection to the left-handed anti-rotational securing device, and the units also include a second outer lock nut in the inner diameter of which a thread is provided.

Connection between a rod and crosshead in a reciprocating compressor

A scraper device for a reciprocating compressor piston rod that comprises at least one scraper ring, provided with at least one lip which faces the surface of the said rod, and a box to contain the scraper ring and for centering on the rod, wherein this scraper ring is produced by means of mechanical processing of deformable plastics materials and wherein this container box is accommodated in support elements with radial play.

Link mechanism of surgical robot

A device ( ) for continuous regulation of the gas flow rate processed by a reciprocating compressor, wherein the reciprocating compressor has at least one first compression piston ( ), which is associated with a first cylinder ( ), and can create a pressure which is variable over a period of time, and a second piston ( ), which acts inside a second cylinder ( ), which is in free communication with the said first compression cylinder ( ), associated with the said first piston ( ), and which acts on an additional dead space ( ). The device includes a third fluid mechanics cylinder ( ), which moves the said piston ( ) of the dead space ( ), wherein the third fluid mechanics cylinder ( ) is activated by means of a compressed fluid, supplied by means of an independent hydraulic system ( ), in order to obtain continuous variation of the dead space ( ).

Device for continuous regulation of the gas flow rate processed by a reciprocating compressor

A crosshead for reciprocating piston machines, in particular reciprocating compressors, wherein the piston rod fixing flange is connected directly to the connecting rod gudgeon pin by clamping screws passing through corresponding holes in the flange and crosshead body and engaging in threaded bores provided in the gudgeon pin, the screws being tightened with a load much higher than the load which the connection has to transmit.

Crosshead for reciprocating piston machines, in particular for

Growing community of inventors

Florence, Italy

Franco Graziani