FUEL INJECTOR PROVIDED WITH A METERING SERVOVALVE OF A BALANCED TYPE FOR AN INTERNAL-COMBUSTION ENGINE

Torna indietro

Abstract

A fuel injector (1) has an injector body (2) and a control rod (10), which is movable in the injector body (2) along an axis (3) for controlling opening/closing of a nozzle that injects fuel in an engine cylinder; the injector body (2) houses a metering servovalve (5), provided with a control chamber (26) and with an open/close element (47) of a balanced type, axial sliding of which causes a variation in pressure in the control chamber (26); the metering servovalve (5) comprises a valve body made of two pieces (76, 80) coaxially coupled to one another via a deformable ring (85), which defines also a gasket for guaranteeing fluid tightness between the two pieces (80, 76) and maintains in a fixed position a disk (91) on which a calibrated restriction (92) is made.

Classe Tecnologica

F - Mechanical engineering, lighting, heating, weapons, blasting

Patent Office

United States Patent and Trademark Office

Numero Deposito

US2009320802

Anno Deposito

2008

Anno Concessione

2009

Inventori Pugliesi

  • Ricco Mario
  • Ricco Raffaele
  • Stucchi Sergio
  • De Michele Onofrio

Tutti gli inventori

  • Ricco Mario
  • Ricco Raffaele
  • Stucchi Sergio
  • De Michele Onofrio

Titolari pugliesi

  • Non ci sono titolari pugliesi

Tutti i titolari

  • FIAT RICERCHE
  • C.R.F. SOCIETA CONSORTILE PER AZIONI