Dosing pump, spraying device for spraying sprays and method for operating such a spraying device
First Claim
1. Dosing pump, particularly for a spraying device for spraying agricultural sprays, comprising at least one feed chamber with at least one liquid inlet and at least one liquid outlet, the at least one liquid inlet and/or the at least one liquid outlet being sealable with a valve, wherein the at least one valve is constructed in self-locking manner unlockable by means of an unlocking device.
1 Assignment
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Accused Products
Abstract
Dosing pump.
The invention relates to a dosing pump with a feed chamber (20) connected to a liquid inlet (12) and a liquid outlet (16). Liquid inlet (12) and liquid outlet (16) can in each case be sealed by a valve (14, 18).
According to the invention the at least one valve (14, 18) is self-locking and can be unlocked by means of an unlocking device (36).
Use for spraying devices for spraying agricultural and/or plant protection sprays.
7 Citations
25 Claims
- 1. Dosing pump, particularly for a spraying device for spraying agricultural sprays, comprising at least one feed chamber with at least one liquid inlet and at least one liquid outlet, the at least one liquid inlet and/or the at least one liquid outlet being sealable with a valve, wherein the at least one valve is constructed in self-locking manner unlockable by means of an unlocking device.
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24. Spraying device for spraying plant protection sprays and in particular a field spray, comprising at least one dosing pump, said dosing pump having at least one feed chamber with at least one liquid inlet and at least one liquid outlet, the at least one liquid inlet and/or the at least one liquid outlet being sealable with a valve, wherein the at least one valve is constructed in self-locking manner unlockable by means of an unlocking device, wherein there are at least two separate feed chambers with in each case an associated feed piston and in each at least one suction valve and one outlet valve, the outlet valves and suction valves of each feed chamber being constructed so as to be unlockable by means of an unlocking device and there are control means for the as desired unlocking of at least one of the suction valves and the outlet valves in order in this way to modify the feed performance of dosing pump.
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25. Method for operating a spraying device for spraying plant protection sprays and in particular a field spray, having at least one dosing pump with at least one feed chamber with at least one liquid inlet and at least one liquid outlet, the at least one liquid inlet and/or being sealable with a valve, wherein the at least one valve is constructed in self-locking manner unlockable by means of an unlocking device, with the following steps:
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a. unlocking the at least one valve of dosing pump, b. forward feed of spray to the at least one dosing pump, return feed of spray from the at least one dosing pump or washing the at least one dosing pump in the unlocked state of the at least one valve.
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Specification