Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
  • B60S1/00—Cleaning of vehicles
  • B60S1/02—Cleaning windscreens, windows or optical devices
  • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
  • B60S1/48—Liquid supply therefor
  • B60S1/52—Arrangement of nozzles; Liquid spreading means

Definitions

• the invention relates to a pane wash nozzle for producing at least two nozzle jets for cleaning a vehicle pane, in particular for cleaning the windshield or rear window.
• a pane wash nozzle is shown, for example in EP 2 144 702 B l .
• a nozzle chip which has a plurality of openings for different spray jets is present there. If the spray pattern of such a nozzle is intended to be asymmetrical, different nozzle chips are necessary for the driver's side and front passenger's side.
• the object is achieved by a pane wash nozzle for a motor vehicle, wherein the pane wash nozzle has a liquid inlet, an insert body with a first nozzle opening predominantly formed by the insert body, and an insert body holder into which the insert body is insertable or inserted in a receptacle, wherein the insert body holder has a second nozzle opening predominantly formed by the insert body holder.
• the object is furthermore achieved in particular by a method for producing a pane wash nozzle, containing the following steps:
• the pane to be cleaned with the pane wash nozzle can be, for example, a windowpane (for example windshield), a headlight lens or a camera lens of the vehicle.
• the pane wash nozzle is preferably designed as a compact module.
• one pane wash nozzle is provided for the driver's side and one for the front passenger's side of the windshield.
• the motor vehicle preferably has one pane wash nozzle for the driver's side and one for the front passenger's side of the windshield.
• the pane wash nozzle is preferably suppliable with washing liquid via the liquid inlet.
• a hose of the washing liquid system of the vehicle is connected to the liquid inlet.
• An insert body is known in the prior art. It is preferably a nozzle chip, and the insert body holder is then correspondingly a nozzle chip holder.
• a structure for producing an oscillating liquid jet is frequently introduced in the prior art, and this is preferably also the case here.
• the predominantly formed component forms the largest portion of the border of the nozzle opening.
• the first nozzle opening of the insert body can be formed predominantly by the insert body and at the same time, but not predominantly, by the insert body holder, wherein the insert body forms three sides of the opening and/or the opening edge over a circumferential angle about the opening center point of more than 180°, while the insert body holder forms only one side and/or less than 180° of the opening edge.
• the nozzle opening is a nozzle opening of the insert body.
• a nozzle opening is preferably understood as meaning an outlet opening which forms the end of a liquid channel of the pane wash nozzle, after which outlet opening the liquid then leaves the pane wash nozzle as a whole.
• the liquid preferably exits from the nozzle opening into the open air.
• the first nozzle opening is preferably a nozzle opening for producing a fan jet, in particular a fan jet produced by an oscillating jet.
• the second nozzle opening is preferably a nozzle opening for producing a spot jet.
• spot jet here should be understood relative to a fan jet and not exclusively ideally physically.
• the first and second nozzle opening are preferably arranged on a same end side of the pane wash nozzle, wherein the end side then expediently faces the pane to be cleaned.
• the insert body holder is preferably mountable onto the vehicle. It preferably has an adjustment device, for example an adjustment mechanism, by means of which it is mountable adjustably on the vehicle.
• an adjustment device for example an adjustment mechanism, by means of which it is mountable adjustably on the vehicle.
• the liquid inlet it preferably has a liquid outlet. From the liquid inlet (and outlet, if present) there is a duct system which diverts liquid to the two nozzle openings.
• the second nozzle opening is partially bounded by an outer side of the insert body.
• the second nozzle opening can advantageously be formed in the insert body holder, in particular by means of injection molding.
• the insert body holder has a shaft as receptacle, and a liquid duct leading to the second nozzle opening is formed on an inner wall of the shaft.
• the shaft preferably has an inner contour corresponding to the outer contour of the insert body in such a manner that the insert body can be inserted into the shaft.
• the insert body is preferably fixable in the shaft by means of an interference fit.
• the liquid duct preferably runs outside the insert body and connects the second nozzle opening fluidically to the liquid inlet.
• the liquid duct is preferably at least partially bounded by an outer wall of the insert body.
• the liquid duct is formed as a groove in the inner wall.
• the groove preferably extends in the longitudinal direction of the shaft.
• the insert body holder has a liquid branching-off portion by means of which two separate liquid flows can be produced, one to the first nozzle opening and another to the second nozzle opening.
• the liquid branching-off portion is preferably formed by two separate passages in the shaft of the insert body holder, preferably passages through the bottom region of the shaft.
• the insert body holder with the second nozzle opening has a symmetrical configuration such that it is useable both for cleaning on the driver's side and for cleaning on the front passenger's side of the motor vehicle, and a spray pattern, which is symmetrical with respect to the center axis between driver's side and front passenger's side, of the second nozzle opening is produced.
• the insert body holder is useable more universally.
• the symmetrical design is preferably present by the insert body holder being axially symmetrical to a horizontal axis, wherein, in the state installed in the vehicle, the horizontal axis is oriented parallel to the y axis according to the system of co-ordinates of the vehicle.
• the center axis between driver's side and front passenger's side preferably lies in the x-z plane according to the system of co-ordinates of the vehicle.
• the pane wash nozzle and/or the spray pattern thereof is preferably symmetrical to a preferably horizontal axis, parallel to the y axis and asymmetrical to a preferably vertical axis which is perpendicular thereto and is parallel to the z axis.
• the receptacle has a height h which, in the state installed in the vehicle, is substantially perpendicular to the plane of the carriageway, and the second nozzle opening is arranged at half of the height h.
• the insert body has the first nozzle opening preferably centrally with respect to the insert body width, wherein the insert body width is oriented perpendicularly to the height h of the receptacle.
• the first nozzle opening is preferably arranged on the upper or lower edge of the insert body eccentrically with respect to the height of the insert body, wherein the height of the insert body is oriented parallel to the height h of the receptacle. This eccentric arrangement is advantageous in particular if the first nozzle opening is intended to produce an oscillating jet since the structure necessary for this purpose can then be simply formed on the upper side and/or lower side of the insert body.
• perpendicular to the plane of the carriageway is preferably the z direction according to the system of co-ordinates of the vehicle.
• the insert body holder is injection molded, and, during the injection molding process, the second nozzle opening is formed by the injection molding die.
• the insert body holder is injection molded, and, after the injection molding, the second nozzle opening is formed in a subsequent material removal step.
• This achieves great production flexibility since it is possibly intended for not all of the pane wash nozzles to obtain a second nozzle opening and this can be decided by omitting or carrying out the material removal step.
• the second nozzle opening is preferably completely formed in the material removal step.
• the second nozzle opening is particularly preferably already preformed during the injection molding, for example a material weakening is introduced at the future location of the second nozzle opening, and then the second nozzle opening is finally formed by means of the material removal step.
• Fig. 1 shows a front view of a pane wash nozzle according to the invention
• Fig. 2 shows a sectional view of a pane wash nozzle based on fig. 1 with further advantageous features
• Figs. 3a-3c show various views of a pane wash nozzle based on fig. 2 with further advantageous features.
• Figs 3b and 3c each show a comparison of the pane wash nozzle to clarify the symmetrical design which is useable both for the driver's side and for the front passenger's side.
• FIG. 1 shows a front view of a pane wash nozzle 1 according to the invention.
• the pane wash nozzle 1 is intended for a motor vehicle. It has a liquid inlet 2
• the insert body holder 20 into which the insert body 10 is inserted in a receptacle 22. Furthermore, the insert body holder 20 has a second nozzle opening 21 predominantly formed by the insert body holder 20.
• the isolated drawing details in the right part of the drawing illustrate the predominant formation of the individual nozzle openings 11, 21 by the different components.
• three sides of the first nozzle opening 11 are formed by the insert body 10 while only one side is formed by the insert body holder 20.
• the insert body 10 forms the opening edge of the first nozzle opening 11 over a circumferential angle 13 around the opening center point of more than 180°, here approximately 280°.
• three sides of the second nozzle opening 21 are formed by the insert body holder 20 while only one side is formed by the insert body 10.
• the insert body holder 20 forms the opening edge of the second nozzle opening 21 over a circumferential angle 26 about the opening center point of more than 180°, here approximately 210°.
• the nozzle here is implemented as a preferred compact module, and the second nozzle opening 21 is preferably partially bounded by an outer side of the insert body 10.
• the first and second nozzle openings 11, 21 are preferably arranged on the same end side of the pane wash nozzle 1, wherein the end side then faces the pane to be cleaned.
• the first nozzle opening 11 is arranged centrally with respect to the insert body width, wherein the insert body width is oriented perpendicularly to the height h of the receptacle.
• the first nozzle opening 11 is arranged at the lower edge of the insert body eccentrically with respect to the height h of the insert body, wherein the height of the insert body is oriented parallel to the height h of the receptacle.
• the insert body 20 is a preferred nozzle chip
• the insert body holder 10 is correspondingly a nozzle chip holder.
• the pane wash nozzle 1 is produced in the following steps:
• Fig. 2 shows a sectional view of a pane wash nozzle 1 on the basis of fig. 1 with further advantageous features, wherein the insert body 10 is not inserted here for the purposes of better illustration.
• the insert body holder 20 has a shaft as receptacle 22, and a liquid duct 23 leading to the second nozzle opening 21 is formed in an inner wall 22.1 of the shaft as a groove in the longitudinal direction of the shaft in the inner wall 22.1.
• the section runs between end side and the bottom of the shaft.
• the shaft has an inner contour corresponding to the outer contour of the insert body 10 in such a manner that the insert body 10 can be inserted into the shaft and is held by means of an interference fit.
• the liquid duct 23 runs outside the insert body 10 and connects the second nozzle opening 21 fluidically to the liquid inlet 2.
• the liquid duct 23 is at least partially bounded by an outer wall of the insert body 10.
• the insert body holder 20 has a liquid branching-off portion 24 by means of which two separate liquid flows can be produced, one to the first nozzle opening 11 and another to the second nozzle opening 21.
• the liquid branching-off portion is formed by two separate passages 24.1, 24.2 into the shaft, which lead through the bottom region of the shaft.
• the insert body holder 20 with the second nozzle opening 21 has a symmetrical configuration such that it is useable both for cleaning on the driver's side and for cleaning on the front passenger's side of the motor vehicle, and a spray pattern, which is
• the receptacle 22 has a height h which, in the state installed in the vehicle, is substantially perpendicular to the plane of the carriageway, i.e. is preferably parallel to the z direction, and the second nozzle opening 21 is arranged at half of the height h.
• the insert body holder 20 is axially symmetrical to an axis S which is preferably horizontal and, in the state installed in the vehicle, is oriented parallel to the y axis according to the system of co-ordinates of the vehicle.
• Figs 3a-3c show various views of a pane wash nozzle 1 on the basis of fig. 2 with further advantageous features.
• Figs 3b and 3c each show a comparison of the pane wash nozzle to clarify the symmetrical design which is useable both for the driver's side and for the front passenger's side.
• the insert body holder 20 has a liquid outlet 3, and also a toothing as an adjustment gearing part 25, by means of which the spray direction is adjustable vertically on an axis.
• the insert body holder 25 is itself also mounted rotatably about a horizontal axis in a further holder (not shown) which has a worm wheel engaging in the toothing.
• the pane wash nozzle 1 is mounted as a module onto the vehicle via said further holder.
• Hoses of the washing liquid system of the vehicle are connected to the liquid inlet 2 and to the liquid outlet 3.
• the pane to be cleaned with the pane wash nozzle 1 is a windshield of a vehicle.
• One pane wash nozzle 1 is provided for the driver's side and one for the front passenger's side of the windshield, i.e. a pane wash nozzle 1 for the driver's side and another pane wash nozzle 1 for the front passenger's side.
• a structure for producing an oscillating liquid jet is introduced in the insert body 10, said structure producing a wide spray jet 11.1 or fan jet emerging from the first nozzle opening 11.
• the second nozzle opening 21 is a nozzle opening for producing a spot jet 21.1.
• This invention has presented a pane wash nozzle with a plurality of spray jets, wherein one spray jet is formed by an insert body and another by the element into which the insert body is inserted.
• one spray jet is formed by an insert body and another by the element into which the insert body is inserted.
• the nozzle opening in the insert body constitutes a robust alternative to the production of more complex insert bodies.
• the early division of the liquid flows between the individual nozzle openings achieves a more constant inflow and therefore a more constant spray power; in particular, oscillating spray systems are susceptible to fluctuations in the inflow. It is possible to produce a universally (on the right/left) insertable insert body which can then be highly optimized and adjusted since no change of dies or different dies are required.

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• Engineering & Computer Science (AREA)
• Water Supply & Treatment (AREA)
• Mechanical Engineering (AREA)
• Nozzles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58610039

Family Applications (1)

Country Status (2)

Cited By (5)

Citations (2)

Family Cites Families (1)

• 2016
  • 2016-04-28 DE DE102016107947.2A patent/DE102016107947A1/de not_active Ceased
• 2017
  • 2017-04-11 WO PCT/US2017/026898 patent/WO2017189219A1/en active Application Filing

Patent Citations (2)

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