GRUPPO POMPA PER L'ALIMENTAZIONE DI COMBUSTIBILE AD UN MOTORE A COMBUSTIONE INTERNA
A pump unit for feeding fuel, in particular diesel fuel, to an internal combustion engine; the pump unit comprising a head (2) inside which a cylinder for housing a sliding pumping piston (4) is formed along an axis (A); an intake valve (8) positioned inside an intake hole between an intake chamber...
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Format: | Patent |
Sprache: | ita |
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Zusammenfassung: | A pump unit for feeding fuel, in particular diesel fuel, to an internal combustion engine; the pump unit comprising a head (2) inside which a cylinder for housing a sliding pumping piston (4) is formed along an axis (A); an intake valve (8) positioned inside an intake hole between an intake chamber (9) and a compression chamber (10) respectively upstream and downstream of the intake hole; a plug (11) pressed against the head (2) in the region of the intake valve for closing the intake chamber; an internal discharge channel (15) formed in the head and connected at one end to a chamber (14) for collecting fuel seeping along the cylinder and at the other end to an external discharge channel (16) formed in the plug (11). |
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