INTERNAL COMBUSTION ENGINE FUEL, PREFERABLY DIESEL FUEL, FEED PUMP ASSEMBLY

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Abstract

Internal combustion engine fuel, preferably diesel fuel, feed pump assembly, the pump assembly (1) comprising a pump body (2); at least one cylinder (6) formed in the pump body (2) and extending along an axis (A2); a seat (12) formed in the pump body (2), at one end of the cylinder (6); an intake valve (18) for selectively controlling fuel feed into the cylinder (6), which is housed inside the seat (12) and in turn comprises a valve body (25); and an annular seal (26) extending around the axis (A2) and fitted inside the seat (12) between the valve body (25) and the pump body (2); the pump assembly (1) being characterized in that the valve body (25) is positioned contacting the annular seal (26) along a contact surface (45) of the valve body (25) and close to a surface portion adjacent to a radially inner peripheral edge (46) of the seal (26); the valve body (25) having an annular step (48) along another surface portion adjacent to a radially outer peripheral edge (52) of the seal (26).

Classe Tecnologica

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

Patent Office

European Patent Office

Numero Deposito

EP 3019735

Anno Deposito

2014

Anno Concessione

2016

Inventori Pugliesi

  • Damiani Fabio
  • Guarino Rocco
  • Tavani Manuel

Tutti gli inventori

  • Damiani Fabio
  • Guarino Rocco
  • Tavani Manuel

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  • ROBERT BOSCH GMBH