PUMPING UNIT FOR FEEDING FUEL, PREFERABLY DIESEL FUEL, FROM A STORAGE TANK TO AN INTERNAL COMBUSTION ENGINE

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Abstract

A pumping unit has a fuel storage tank (2), a piston pump (6) for feeding the fuel to an internal combustion engine (3); a gear pump (7) for feeding the fuel from the storage tank (2) to the piston pump (6), and a hydraulic circuit (46) which connects together the storage tank (2) and the internal combustion engine (3), extends through a pump body (8) of the piston pump (6) so as to lubricate an actuating shaft (36) of the piston pump (6) and has a collection branch (55) for collecting the fuel leaks resulting from the lubrication of said actuating shaft (36); the collection branch (55) being connected to an intake (37a) of the gear pump (7) so as to lubricate an actuating shaft (42) of the gear pump (7) with the fuel from said collection branch (55).

Classe Tecnologica

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

Patent Office

European Patent Office

Numero Deposito

EP 3071833

Anno Deposito

2014

Anno Concessione

2016

Inventori Pugliesi

  • Ficarella Giuseppe
  • Medoro Nello

Tutti gli inventori

  • Ficarella Giuseppe
  • Medoro Nello

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  • ROBERT BOSCH GMBH