Fuel injector with balanced metering servovalve, for an internal combustion engine
Abstract
The injector comprises a balanced metering servovalve to control a rod for the opening/closing of a nozzle. La servovalve has a valve body with a control chamber radially delimited by a tubular portion and fitted with an outlet passage that is opened/closed by an axially movable shutter. The servovalve is also integral with an axial stem, provided with a lateral surface, through which the outlet channel exits. The shutter is coupled to the stem in an axially sliding manner and, when it closes the outlet passage, it is subjected to substantially null axial fuel pressure. The outlet passage has a calibrated segment distanced from the shutter and close to a bottom wall of the control chamber. The calibrated segment is carried by an element fixed to the valve body in correspondence to an axial segment of the outlet passage.
Classe Tecnologica
F - Mechanical engineering, lighting, heating, weapons, blasting
Patent Office
United States Patent and Trademark Office
Numero Deposito
US7954787
Anno Deposito
2008
Anno Concessione
2011
Inventori Pugliesi
- Ricco Mario
- Ricco Raffaele
- Gravina Antonio
- Gargano Marcello
- Stucchi Sergio
- De Michele Onofrio
Tutti gli inventori
- Ricco Mario
- Ricco Raffaele
- Gravina Antonio
- Gargano Marcello
- Stucchi Sergio
- De Michele Onofrio
Titolari pugliesi
- Non ci sono titolari pugliesi
Tutti i titolari
- C.R.F. Società Consortile Per Azioni
Condividi questo sito sui social