| 摘要 |
A fluid dispenser pump comprising a pump body ( 10 ), a pump chamber ( 20 ) provided with an inlet valve ( 30 ) and with an outlet valve ( 40 ), and a piston ( 50 ) sliding in said pump body ( 10 ) so as to dispense the fluid contained in the pump chamber ( 20 ), said outlet valve ( 40 ) comprising a valve element ( 41 ) co-operating with a valve seat ( 42 ), said outlet valve ( 40 ) further comprising deformable sealing means ( 45, 46 ) provided between said valve seat ( 42 ) and said valve element ( 41 ), said sealing means ( 45, 46 ) being elastically deformed in the closed position of said outlet valve ( 40 ) so as to improve sealing.
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