Dispenser for dispensing liquids

Dispenser for dispensing liquids, said dispenser having

• a liquid storage unit,
• a dispensing head with a perforated plate component which has at least 25 dispensing openings in a dispensing region,
• a pre-chamber which is connected upstream of the dispensing openings of the perforated plate component and from which the dispensing openings are supplied, and
• a connecting channel which connects the liquid storage unit to the pre-chamber,
• wherein the dispenser has an outlet valve which has two valve components, of which one is a valve seat which is fixed in position with respect to an outside housing of the dispensing head and the other is a valve body which is movable in relation to said valve seat and controls the inflow of liquid to the dispensing openings together with the valve seat, wherein one of the valve components is formed by the perforated plate component.

Dispenser for dispensing liquids, said dispenser having

• a liquid storage unit,
• a dispensing head with a perforated plate component which has at least 25 dispensing openings in a dispensing region,
• a pre-chamber which is connected upstream of the dispensing openings of the perforated plate component and from which the dispensing openings are supplied, and
• a connecting channel which connects the liquid storage unit to the pre-chamber,
• wherein there is provided in the pre-chamber an inflow control body which, at least in the region of a dispensing opening, together with the perforated plate body defines a gap, the inside width of which preferably does not exceed 0.3 mm and preferably does not exceed 0.1 mm.

Dispenser for dispensing liquids, said dispenser having

• a liquid storage unit,
• a dispensing head with a perforated plate component which has at least 25 dispensing openings in a dispensing region,
• a pre-chamber which is connected upstream of the dispensing openings of the perforated plate component and from which the dispensing openings are supplied, and
• a connecting channel which connects the liquid storage unit to the pre-chamber,
• wherein there is provided in the pre-chamber an inflow control body which, on its side facing the dispensing opening region, has an end face which has an average peak-to-valley height Rt of between 10 μm and 100 μm.

Dispenser for dispensing liquids, said dispenser having

• a liquid storage unit,
• a dispensing head with a perforated plate component which has at least 25 dispensing openings in a dispensing region,
• a pre-chamber which is connected upstream of the dispensing openings of the perforated plate component and from which the dispensing openings are supplied, and
• a connecting channel which connects the liquid storage unit to the pre-chamber,
• wherein there is provided on the inside of the dispensing opening region a cover body which has at least one closing face, wherein by the at least one closing face abutting against an inside surface of the dispensing opening region at least one of the dispensing openings is closable or is closed.