| 摘要 |
A fluid dispenser device comprising: a reservoir (100); a pump (50) that defines a pump chamber (56); a first piston (51) that slides in leaktight manner between a non-dispensing position and a dispensing position; a spray head (10) including a body (11) that defines an expulsion channel (12) and that is provided with a dispenser orifice (1); a closure member (40) that is disposed in said expulsion channel (12) upstream from the dispenser orifice (1), said closure member (40) being movable between a closed position and a non-closing position; and a second piston (57) that co-operates with said closure member (40) in order to move it towards its non-closing position; wherein, in the dispensing position of the first piston (51), said pump chamber (56) is connected to the reservoir (100) in order to equalize the pressures after each actuation.
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