Fuel injection system comprising a variable flow rate high-pressure pump

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Abstract

The injection system comprises a high-pressure pump (7) having at least one pumping element (18) operated in a reciprocating manner by means of corresponding intake and discharge strokes. Each pumping element (18) is equipped with a corresponding intake valve (25) in communication with an intake line (10), fed by a low-pressure pump (9). An on-off solenoid valve (27) is positioned on the intake line (10) of the pump (7) and is controlled by a control unit (16) with a frequency equal to a whole multiple or submultiple of that of the pumping action, multiplied by a factor ( K ) slightly different from 1.

Classe Tecnologica

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

Patent Office

United States Patent and Trademark Office

Numero Deposito

US7779815

Anno Deposito

2008

Anno Concessione

2010

Inventori Pugliesi

  • Ricco Mario
  • Stucchi Sergio
  • De Michele Onofrio
  • Lisbona Mariagrazia

Tutti gli inventori

  • Ricco Mario
  • Stucchi Sergio
  • De Michele Onofrio
  • Lisbona Mariagrazia

Titolari pugliesi

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  • C.R.F. Società Consortile Per Azioni