DE202019105713U1 - Expansion system for a windscreen washer system of a vehicle - Google Patents

Abstract

An augmentation system (10) for a windscreen washer system of a vehicle, the augmentation system (10) comprising an auxiliary tank (12) for receiving windshield washer fluid, characterized in that the augmentation system (10) further comprises: - an attachment (16) for mounting on a train - Washer washing tank (24) of the vehicle - a connecting hose (14) for connecting the auxiliary tank (12) with the attachment (16).

Description

The present invention relates to an augmentation system for a windscreen washer system of a vehicle, the augmentation system comprising an auxiliary tank for receiving windshield washer fluid.

In special cases, vehicles require an increased amount of windshield washer fluid. This applies, for example, to numerous vehicles for the security sector. These are protected by a variety of measures against external influences. For example. Police vehicles are often equipped with polycarbonate panes instead of the otherwise conventional laminated glass, since polycarbonate panes are extremely break-resistant.

However, polycarbonate sheets are much more susceptible to scratching than conventional laminated glass. Therefore, polycarbonate wafers should not be wiped with dry wiper blades. In practice, police and other vehicles with polycarbonate disks are therefore often associated with systems such as e.g. equipped with the so-called "wet-wiper" system in which wiper water is passed through the wiper arms directly to the windshield. This in turn leads to an increased need for windscreen washer fluid, which can not be covered by the usual standard windscreen washer tanks of the vehicles sufficiently.

An expansion system for a windscreen washer system of a vehicle according to the preamble of claim 1 is known from DE 7439735 U known. It includes an auxiliary tank for holding windshield washer fluid, which may be carried in addition to the liquid in the standard windshield washer tank of the vehicle. However, the expansion system requires the DE 7439735 U for applying the additional windscreen washer fluid from the series car wash of the vehicle largely independent second car wash with a second pump, separate lines and additional spray nozzles in the windshield. This increases the cost of the expansion system, especially since it also requires additional maintenance.

It is therefore an object of the invention to further develop a generic expansion system for a windscreen washer system of a vehicle such that the carryable supply of windscreen washer fluid with minimal changes to the vehicle, especially on the serial windscreen washer, can be increased.

• - einen Aufsatz zur Montage auf einem Serien-Scheibenwaschbehälter des Fahrzeugs;
• - einen Verbindungsschlauch zur Verbindung des Zusatztanks mit dem Aufsatz.

According to the invention, this object is achieved in a generic extension system in that it further comprises:

• - An attachment for mounting on a standard windscreen washer tank of the vehicle;
• - A connecting hose for connecting the additional tank with the attachment.

Due to the connecting hose, the serial windscreen washer tank and the auxiliary tank cooperate on the principle of the communicating tubes over the attachment. The additional tank thus acts as an external enlargement of the serial windscreen washer tank. A second pump or separate spray nozzles in the windshield are not required, but rather the entire windscreen washer, which is equipped with the expansion system according to the invention, otherwise works with the series pump and the series spray nozzles.

Advantageously, the connecting hose is connected to a lower end of the additional tank. This facilitates filling of the serial windscreen washer tank via the auxiliary tank.

Alternatively or additionally, it can be provided that the attachment comprises a screw cap. Then the series windshield washer container can be filled directly and faster on the essay, and depending on the relative arrangement of series windscreen washer tank and additional tank, if necessary, the additional tank to be filled in this way.

Conveniently, the expansion system further comprises a downcomer for fluidly connecting the attachment to an interior volume of the series windshield washer container. In this way, the internal volume of the serial windscreen washer tank can be filled in a controlled manner. Furthermore, such a downpipe allows the construction of a negative pressure for emptying the additional tank.

In an advantageous embodiment, the expansion system according to the invention further comprises a holder for mounting the auxiliary tank at a height above the series windshield washer container. Such a design empties the higher placed additional tank prioritized. In the event of non-filling or dry-dropping of the auxiliary tank, the function of the entire vehicle wiper system is fully guaranteed via the serial windscreen washer tank. The level warning of the vehicle works in the usual way.

The additional tank may in principle be provided on a loading area or in a vehicle interior of the vehicle. Conveniently, however, the holder is designed for mounting the additional tank in an engine compartment of the vehicle.

The present invention further relates to a windscreen washer system comprising an expansion system according to any one of the preceding claims.

In this case, the attachment can be mounted on the serial windscreen washer tank of the vehicle by an adhesive bond.

Advantageously, the adhesive bond comprises an adhesive and sealant. In this way, leakage of windscreen washer fluid in the region of the adhesive bond can be prevented.

The present invention further relates to a vehicle comprising a windscreen washer as described above. It may be a police vehicle or another vehicle with a polycarbonate windshield. In principle, however, it is also conceivable to use the expansion system according to the invention for vehicles with other panes, including laminated glass panes, which for other reasons have an increased need for windscreen washer fluid, for example due to regular use in situations which cause severe soiling of the windscreen.

• 1 eine perspektivische Explosionsansicht des erfindungsgemäßen Erweiterungssystems;
• 2 eine perspektivische Ansicht des erfindungsgemäßen Erweiterungssystems, montiert an einem Serien-Scheibenwaschbehälter eines Fahrzeugs.

An embodiment of the invention will be explained below with reference to the figures as a non-limiting example. Herein show:

• 1 an exploded perspective view of the expansion system according to the invention;
• 2 a perspective view of the expansion system according to the invention, mounted on a serial windscreen washer tank of a vehicle.

1 shows an exploded perspective view of the expansion system according to the invention 10 , It includes an additional tank 12 , at the lower end of a connecting hose 14 attached with a first end. The other end of the connection tube 14 is on a substantially cylindrical tower 16 attached to his in 1 upper end with a screw cap 18 Is provided.

The attachment of the first end of the connecting tube 14 at a nozzle of the additional tank 12 and the attachment of the second end of the connecting tube 14 on a neck of the tower 16 takes place in each case via a 1-ear clamp with insert ring 20 ,

The essentially cylindrical attachment 16 goes to his in 1 lower end in a downpipe 22 via, whose function is based on 2 will become clear, which is a perspective view of the expansion system according to the invention 10 shows mounted on a serial windscreen washer tank 24 of a vehicle.

The downpipe 22 serves for fluid connection of the attachment 16 with an internal volume of the serial windscreen washer tank 24 , By unscrewing the screw cap 18 you can then washer fluid directly into the essay 16 pour in and over the downpipe 22 first the serial windscreen washer tank 24 fill up.

If the serial windscreen washer tank 24 is completely filled and the level of windscreen washer fluid in the downpipe 22 rises to the height of the nozzle, at which the upper end of the connecting tube 14 is fixed, further refilled washer fluid flows through the connecting tube 14 in the additional tank 12 , According to the principle of communicating tubes can be the additional tank 12 in this way over the essay 16 at least partially fill.

Conversely, is also according to the principle of communicating tubes and a filling of the series windshield washer 24 about the additional tank 12 possible, wherein the windscreen washer fluid into a filling opening 25 of the additional tank 12 is filled, for example, with the lid 26 of the serial windscreen washer tank 24 can be closed.

When installing the expansion system according to the invention 10 in the vehicle is the lid 26 from the serial windscreen washer tank 24 removed from the vehicle and at the filling opening 25 of the additional tank 12 appropriate. Then the essay 16 in his in 1 lower connection area 16a wetted with a primer, for example, with the commercially available under the name "Primer207" primer. Likewise, the filler neck of the serial windscreen washer tank 24 wetted on the inside with such a bonding agent, preferably over a length of about 60 mm.

After a flash-off time of several hours then an adhesive and sealant on the outside of the connection area 16a and / or the inside of the filler neck of the serial windscreen washer tank 24 applied and the essay 16 with its connection area 16a into the filler neck of the serial windscreen washer tank 24 fitted. As a suitable adhesive and sealant, for example, the commercially available under the name "Adheseal" polymer composition can be used.

In this way, a permanently stable and dense for windshield washer fluid Assembly of the attachment 16 on the serial windscreen washer tank 24 achieve.

The additional tank 12 itself is using a special holder 28 mounted in the engine compartment of the vehicle. The outer shape of the additional tank 12 , in the non-limiting example of 1 and 2 with two approximately equal containers, which merge into one another "over corner", is adapted to the intended installation location in the engine compartment so that originally free space in the engine compartment of the vehicle for the additional tank 12 can be used.

In the in the 1 and 2 embodiment shown is the additional tank 12 placed higher in the engine compartment of the vehicle than the standard windscreen washer tank 24 , This offers the advantage that the additional tank 12 Priority is emptied, so that, for example, the standard provided level warning for the series-windscreen washer 24 continues to function and retains its meaning. The filling of the entire windscreen washer according to the invention then takes place in a particularly rapid and complete manner such that first the screw cap 18 from the tower 16 and the serial windscreen washer tank 24 about the tower 16 is replenished. Subsequently, the screw cap 18 screwed on again, the lid 26 of the additional tank 12 opened, and the additional tank 12 refilled.

Basically, the standard windscreen washer tank 24 but also on the higher placed additional tank 12 and the connection hose 14 be filled, which act as communicating tubes.

Furthermore, allows the downpipe 22 the build-up of a negative pressure through which the additional tank 12 about the tower 16 as it were, it can be sucked empty.

The expansion system according to the invention 10 allows you to carry a significantly larger stock of windscreen washer fluid than normally with only the standard windscreen washer tank 24 equipped vehicle. At the same time, the pump and the rest of the system are deployed around the vehicle manufacturer, which means that only minimal intervention is made in the windshield washer system itself. The spare parts supply and the like is thus covered by the standard scope of the vehicle. The invention thus avoids an increase in costs for maintenance. In addition, the invention avoids an increased power consumption, since the optical and acoustic signals of the production vehicle, in particular the level warning for the series windshield washer 24 , continue to work.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 7439735 U [0004]

Claims (10)

An augmentation system (10) for a windscreen washer system of a vehicle, the augmentation system (10) comprising an auxiliary tank (12) for receiving windshield washer fluid, characterized in that the augmentation system (10) further comprises: - an attachment (16) for mounting on a series Washer washing container (24) of the vehicle; - A connecting hose (14) for connecting the additional tank (12) with the attachment (16). Expansion system (10) after Claim 1 , characterized in that the connecting tube (14) is connected to a lower end of the auxiliary tank (12). Expansion system (10) according to any one of the preceding claims, characterized in that the attachment (16) comprises a screw cap (18). Expansion system (10) according to one of the preceding claims, characterized in that it further comprises a drop tube (22) for fluid communication of the cap (16) with an internal volume of the serial windscreen washer tank (24). An extension system (10) according to any one of the preceding claims, characterized in that it further comprises a holder (28) for mounting the auxiliary tank (12) at a height above the serial windshield washer tank (24). Expansion system (10) according to the preceding claim, characterized in that the holder (28) is designed for mounting the auxiliary tank (12) in an engine compartment of the vehicle. A windscreen washer system comprising an expansion system (10) according to any one of the preceding claims. A windscreen washer according to the preceding claim, wherein the attachment (16) is mounted on the serial windscreen washer tank (24) of the vehicle by adhesive bonding. Windscreen washer according to the preceding claim, wherein the adhesive bond comprises an adhesive and sealant. Vehicle comprising a windscreen washer according to one of claims 7 to 9.

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