| 摘要 |
A fluid delivery device (1) adapted to dispense a fluid, wherein it includes a filling chamber (2), and a dispensing chamber (2), and at least one inlet port adapted to supply fluid to be dispensed to the filling and/or dispensing chamber (2), and at least one outlet port (3) adapted to dispense fluid from the dispensing and/or filling chamber (2), and a piston (7) movable within the filling and dispensing chambers (2), wherein the piston (7) being adapted to divide the filling and dispensing chambers (2), and a valve (8) adapted to control fluid flows between the filling and dispensing chambers (2), the valve (8) being formed separate from the piston (7), the fluid delivery device (1) being characterized in that the valve (8) is located on the piston (7) and the valve (8) extends out into the dispensing chamber from the piston (7) is disclosed. This fluid delivery device (1) may be adapted to form a drench gun (1) that can be used for delivering relatively viscous drench fluids.
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