Abstract:
A device for transporting fluids, such as viscous adhesives and sealants. The device includes a cylinder which may be filled by a supply line and a movable piston within the cylinder for ejecting the fluid into a discharge line. The piston includes an axial fluid channel and can be moved by way of a piston rod which also includes an axial fluid channel. An inlet valve is positioned between the supply line and the cylinder and may be moved between open and closed positions for releasing or interrupting the supply the fluid from the supply line into the interior of the cylinder. The piston rod includes threading and this threading is engaged with corresponding threading on a rotatable and drivable drive element so that the piston may be moved by rotating the drive element within the cylinder.