DE2002139A1 - Windshield and headlight washers for motor vehicles - Google Patents

Description

S-ZP special factory for car accessories Gustav Rau GmbH., 712 Bietigheim

A 11 711

5.1.1970 PAT J / Vo / Wi

Windshield and headlight washers for motor vehicles

The invention relates to a windscreen and headlight washer system for motor vehicles, with the washer nozzles of a water supply system assigned to the windows and the headlights.

The introduction of the headlight wiper systems was also a hit Headlight washing system required. This requires an additional water storage tank, an additional water pump and a additional washer switch.

Ea therefore tried to create a combined windshield and headlight washer system to create the only one water pump and one guard switch needed. Up to now this has always failed because with such a combined windshield and headlight washer system especially during day trips the water requirement is unnecessarily high because. the headlights are always washed with them.

It is the object of the invention to provide a windshield and headlight washer system of a motor vehicle so that only one Vasserpuape and only one water switch are required, the water requirement However, it is still reduced to the required level and the systems are still largely controlled independently of one another can.

The windshield and headlight washer for motor vehicles with one of the washer nozzles assigned to the windows and the headlights Vaeeerversorgungssyeteme is characterized according to the invention, that the waaoh nozzles for the windows directly and the washer nozzles

BATH

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for the headlights via a pressure relief valve to a common Water supply systems are connected and that a single one Water pump controls the water supply system, which has a Water switch can be set to two pressure values, one of which is below and one above the opening pressure of the pressure relief valve. In one of the switch positions of the washer switch, only the windscreen washer system is activated effective, while in the other switch position of the Vaecherechalters the headlight washer system via the higher pressure of the water pump is switched on. During the normal washing process, only the windows are cleaned and cleaning can be carried out on request the headlights are run for this. The effort for the kombi-W ned windshield and headlight washer system is minimal and the Water consumption is limited to the required amount.

The control of the water pump is carried out according to an embodiment in simply designed so that the pressure in the water supply system can be adjusted by changing the speed of the water pump. This can be done directly via the washer switch.

In order for the washed headlamp panes to be wiped clean, a further embodiment provides that with the Switching on the water pump to the higher speed the headlight wiper system can be switched on.

α The combined washing system according to the invention is not on dl « Main windows and the headlights of the motor vehicle drenched. An · expansion of the system is characterized by the fact that vasohydrops For rear windows and tail lights via further overpressure valves are connected to the common water supply system, which can be controlled via corresponding pressure increases in the water pump. These pressures can be adjusted via additional switch positions of the washer switcha by correspondingly increasing the speed of the vaseer pump can be set. The mixing systems assigned to the rear windows and the taillights can be moved into the assigned Switch positions of the water switch · can also be switched on.

The rear light nozzles can be simplified after a simplification also via the overpressure valve for the headlights' Waeoh nozzles

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being controlled. With the corresponding pressure in the water supply system the headlights and taillights are then cleaned together.

The invention is explained in more detail with the aid of a diagram of the combined windshield and headlamp washing system shown in the drawing explained.

The water reservoir VB and the lines L represent the water supply system the washing system is fed by a single water pump P. This vase pump P is via a vascher switch WS «with the two switch-on divisions SI and SII on two rotary axes and thus on two pressure values in the water supply system adjustable.

The washing nozzles D for the main window are on the water supply system of the motor vehicle directly connected. The pressure prevails in the water supply system, which is above the first speed of the water pump P is generated, then a washing jet emerges from the nozzles D. The windshield wiper system of the motor vehicle can also use this washing process be switched on.

Via branch A of the line system L are via the pressure relief valve V the Waeohdüeen D1 and D2 of the headlights on the rfasserversorgungssystea connected. However, the pressure is not sufficient to open the pressure relief valve V. The headlights are in this switch position SI of the water switch * WS not cleaned.

If the washing switch WS is brought into the switching division SII, then The speed of the water pump P and thus the pressure in the water supply system increase to such an extent that the pressure relief valve V opens. Washer jets also come out of the headlights' Waaoh nozzles D1 and D2. The cleaning of the main window takes place via the washing nozzles D. in parallel. With the setting of the wiper switch WS in the Switching position SII can also switch on the headlight mixing system will.

Lines to the washing nozzles can also be found downstream of the overpressure valve T

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be branched off from the tail lights. The tail lights turn on always cleaned together with the headlights. The wiper system for the tail lights can also be used in the display SII of the wiper switcha WS are also controlled.

It is easy to see that there are further switch positions of the Washer switch WS the water pump P to other pressure values can be set, which are used to control additional, appropriately set pressure relief valves in the water supply system can. For example, the washer nozzles on the rear window of the motor vehicle can be switched on to wash the main window and the headlights will.

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Claims (1)

8VF special factory for car accessories Guatav Rau GmbH., 712 Bietigheia - 5 - A 11 711 5.1.1970 PAT J / Vo / Vi Claims Windshield and headlight washing system for motor vehicles, with The wax nozzles of a waaaerversorgungssysteas assigned to the windows and the headlights, characterized by the fact that the washer nozzles (D) for the panes directly and the washing nozzles (D1, D2) for the headlights via a pressure relief valve (V) to a common Waseervereorgungssyetea (VB, L) are connected and that • in · the only water puape (P) the water supply system (VB, L) controls the two pressure values via a water switch (WS) • is adjustable, one of which is below and one above the opening pressure dss pressure relief valve (V) is located. 2t windshield and headlight-Vaschanlage according to claim 1, characterized in that the Druok _v ia Vasserversorgungssystea (VB, L) of the water pump (P) by daft Xnderung represents rotational speed is adjustable. 5 * windshield and headlight washing system according to claims 1 and 2, characterized in that the Vasaerpuape is switched on (») Switch on the headlight system« at the higher speed is cash. 4 »febeiben- and eeeinwerfsr-Vaeohanlage according to claims 1 to 3, ladurob g« keanselohnet _t dai vasoh nozzles for rear windows and screed flutes via further pressure valves aa common water supply systems are connected, which can be controlled via corresponding pressure increases in the vass «rpuape are. 5. Ben "ib" n and headlamp Vasohanlag "according to claim 4, characterized marked, as these prints have additional switch positions dss Vasohersohalter by increasing the speed accordingly the vasserpuape are adjustable. RAD Ofltä * ^ 109831/1070 " ⁶ - - 6 - A 11 711 6. windshield and headlight washing system according to claim 5i characterized! that the rear windows and the taillights associated with the Vischanlagen in the assigned switch positions
of the Vaecherschaltere can be switched on. 7. Windshield and headlight washing system according to one or more of claims 1 to 6, characterized in that the washing nozzles the tail lights via the pressure relief valve (V) for the headlights are controllable. 109831 / '«(HO