POMPE D'INJECTION DIRECTE DE COMBUSTIBLE POUR MOTEUR A ALLUMAGE COMMANDE ET SYSTEME D'INJECTION COMPORTANT UNE TELLE POMPE

摘要

The invention concerns an injection pump comprising, in a housing (10), at least a chamber (12) supplying an injection circuit, separated by a deformable membrane (18) from a section (26) defined by a bore (28) of the housing and by a piston (30) actuated by a reciprocating movement. The chamber (12) is connected to a fuel supply and to the injection circuit by respective non-return valves. The pressure of the liquid contained in the section is permanently adjustable.