Fluid Delivery Device, Injection Device, Ground Milling Machine, And Method

摘要

A fluid delivery device for an injection device for introducing a fluid into a work chamber of a ground milling machine, comprising a fluid supply chamber having at least one outlet opening, the outlet opening being closable by a linearly displaceable tappet. The tappet includes an opening region in which it has a smaller cross-sectional area than the minimum cross-sectional area of the outlet opening, and a tappet head for the closure of the outlet opening, the tappet head having a cross-sectional area that includes the cross-sectional area of the outlet opening. Further, the fluid delivery device comprises a displacement device for moving the tappet between a closed position, in which the outlet opening is closed by the tappet, and an open position, in which the outlet opening is open for delivering fluid outward out of the fluid supply chamber. The tappet is configured such that the tappet head closes the outlet opening from the outside in the closed position, and that the opening region is at least partially arranged in the outlet opening and the tappet head at least partially opens the outlet opening in the open position.

主权项

1. A fluid delivery device for an injection device for introducing a fluid into a work chamber of a ground milling machine, comprising:
a fluid supply chamber including at least one outlet opening which is closable by a displaceable tappet, a displacement device configured to move the tappet is movable between a closing position, in which the outlet opening is closed by the tappet, and an open position, in which the outlet opening is at least partially opened for delivering fluid outward out of the fluid supply chamber, wherein the tappet comprises a tappet shaft having an opening region and a tappet head for closing the outlet opening, the opening region having a cross-sectional area that is smaller than a minimum cross-sectional area of the outlet opening, and the tappet head having a cross-sectional area that is greater than the minimum cross-sectional area of the outlet opening, and that the tappet, when being displaced in the opening direction from the closed position into the open position, is moved such that the tappet head is pushed outward at least partially away from the outlet opening, and that the tappet, when being displaced in the closing direction from the open position into the closed position, is moved such that it is retracted toward the outlet opening until the tappet head closes the outlet opening to the outside.