Fuel-injection system for an internal-combustion engine

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Abstract

The injection system comprises a high-pressure pump ( 7 ) with variable flowrate, having a number of pumping elements ( 18 ) actuated with reciprocating motion and provided each with a corresponding intake valve ( 22 ). An accumulation volume ( 28 ) is supplied with fuel at low pressure from an intake pipe ( 10 ) of the pump ( 7 ) through a solenoid valve ( 31 ) controlled as a function of the operating conditions of the engine ( 2 ). The accumulation volume ( 28 ) is in communication with the intake valves ( 22 ) through corresponding outlet holes ( 29 ), and the solenoid valve ( 31 ) is provided with nebulizer holes ( 36 ) such as to generate corresponding jets of fuel, each directed towards at least one of said outlet holes ( 29 ).

Classe Tecnologica

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

Patent Office

United States Patent and Trademark Office

Numero Deposito

US7395812

Anno Deposito

2006

Anno Concessione

2008

Inventori Pugliesi

  • Ricco Mario
  • Gorgoglione Adriano
  • Ricco Raffaele
  • Stucchi Sergio

Tutti gli inventori

  • Ricco Mario
  • Gorgoglione Adriano
  • Ricco Raffaele
  • Stucchi Sergio

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  • C.R.F. Società Consortile Per Azioni