| 摘要 |
<p>The invention concerns a fluid product dispensing pump comprising a pump body (10), a pump chamber (20), at least one first plunger (72) sliding in said pump chamber (20) between an inactive position and an actuated position for dispensing the fluid product, and a dispensing orifice (45), said pump chamber comprising an input valve (70) separating the pump chamber (20) from a channel (18) extending towards a fluid product reservoir (60), a bypass passage (74) being provided between said channel (18) and said pump chamber (20), said bypass passage (74) being arranged upstream of said input valve (70), said bypass passage connecting the pump chamber (20) to the reservoir (60) when the plunger (72) is in actuated position.</p> |
