CZ29585U1 - Aerator - Google Patents

Description

Technical field

The technical solution relates to an aerator for saving liquids, especially water.

BACKGROUND OF THE INVENTION

Saving water for washing is now one of the major social issues. This is currently achieved in two ways. The first is a simple reduction of the water flow through the upstream device, which narrows the flow profile and thereby reduces the final volume of water flowing out of the faucet. Water flow reductions are in most cases small devices that are mounted in front of the arm tap in the direction of the water flow. Alternatively, they can already be included in the shoulder tap. The disadvantage of this solution is the relatively low saving while maintaining the washing comfort or reducing the washing comfort with higher water savings.

The second way is to reduce the water flow while maintaining the volume of the liquid by means of a mix with air. Air is sucked into the liquid and mixed due to the underpressure generated by the Venturi effect, where air is sucked from the outer perimeter of the liquid at the exit point of the narrowed water flow profile to a larger space and then mixed with air. This solution is realized by front air intake. The disadvantage of the solution is that the air-water mixture is gradually developed depending on the water flow.

The essence of the technical solution

According to the invention, the aerator largely eliminates the disadvantages of existing solutions. The aerator according to the invention is composed of an outer threaded mounting part, an inner screen mounting part, at least one set of coarser and finer strainer, a water distribution part and a dirt screen as follows.

At least one set of coarser and finer strainer for channeling and connecting the water stream is inserted into the inner strainer part so that the last strainer is fitted at least 1.5 mm below the water distribution part. In addition, a water distribution part having water inlet openings provided on a pitch circle of 7.5 mm diameter, the holes having a size of 0.5 mm, is inserted into the inner strainer part. Finally, a strainer is placed in it. The whole set assembled in this way is inserted into the outer part with mounting thread.

An advantage is the possibility to insert a reducing washer between the water distribution part and the dirt screen to reduce the water flow.

The aerator according to the invention is placed in a battery arm, whereby a seal is used to seal the joints.

In the case of high water pressure at the inlet, optimum water flow can be set by placing a water supply reduction between the faucet and the water supply.

Combination of the water distribution part provided with water inlet holes made on the water distribution part in any symmetrical layout (eg pitch circle, square, etc.) where the holes are 0.4 to 0.9 mm in size and the last set is seated coarse and fine strainer is at least 1.5 mm below the water distribution part, the water flow decreases significantly up to values of 1.7 to 2.2 l / min. while maintaining normal washing comfort. This saves significant water consumption.

The aerator according to the invention can be used with any commercially available arm battery, thus saving costs.

-1 CZ 29585 Ul

Examples

Example 1

Six sets of coarser and finer strainer 2 are placed in the inner part for seating the sieves I to guide and connect the water stream, so that the last sieve is seated at least 1.5 mm below the part

3 for water distribution. A water distribution part 3, which is provided with water inlet openings 7 formed on a pitch circle of 7.5 mm diameter, the openings 7 having a size of 0.5 mm, is inserted into the inner screening part I. Next, a reducing washer 4 is inserted into the inner part 1 for seating the sieves and lastly the sieve 5 is inserted. The whole set assembled in this way is inserted into the outer part with mounting thread 6.

ío Drawing clarification

Giant. 1 is a section through the aerator.

Giant. 2 is a view of a part for directing water.

Industrial applicability

The aerator according to the invention can be used with any hang-top battery.

PROTECTION REQUIREMENTS

Claims (1)

1. A water-saving aerator, consisting of an external threaded mounting element (6), an inner strainer assembly (1), at least one set (2) of a coarser and finer strainer, a water distribution element (3) and a strainer (5) against dirt, characterized in that the last dirt strainer (5) is seated at least 1.5 mm below the water distribution part (3) and the water distribution part (3) is 20 having water inlet openings (7) arranged in any symmetrical distribution on the water distribution part (3), the openings (7) having a size of 0.4 to 0.9 mm.