FR2580569A3 - Heat exchanger for a windscreen jet - Google Patents

Heat exchanger for a windscreen jet Download PDF

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Publication number
FR2580569A3
FR2580569A3 FR8511232A FR8511232A FR2580569A3 FR 2580569 A3 FR2580569 A3 FR 2580569A3 FR 8511232 A FR8511232 A FR 8511232A FR 8511232 A FR8511232 A FR 8511232A FR 2580569 A3 FR2580569 A3 FR 2580569A3
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France
Prior art keywords
tube
heat exchanger
windscreen
washing fluid
straight tube
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Granted
Application number
FR8511232A
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French (fr)
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FR2580569B3 (en
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Individual
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Individual
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Publication date
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Publication of FR2580569A3 publication Critical patent/FR2580569A3/en
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Publication of FR2580569B3 publication Critical patent/FR2580569B3/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/46Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48Liquid supply therefor
    • B60S1/487Liquid supply therefor the liquid being heated

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a heat exchanger 1 for the windscreen washer of a motor vehicle windscreen, for heating the washer fluid, comprising an essentially straight tube 5 with pieces 2 for connection to the cooling water circuit of the engine, the straight tube being surrounded by a helical tube 6 for the washer fluid, the windings of this tube being clamped against one another and in intimate contact with the straight tube 5.

Description

ECHANGEUR CALORIQUE POUR ASPERSOIR DE PARE-BRISE
L'invention concerne un échangeur calorique pour lave-glace de pare-brise d'un véhicule motorisé pour chauffer le fluide de lavage.
HEAT EXCHANGER FOR WINDSHIELD SPRAYER
The invention relates to a heat exchanger for windscreen washer windshields of a motorized vehicle for heating the washing fluid.

Il s'est révélé avantageux d'utiliser un fluide de lavage chauffé pour le lave-glace de pare-brise d'un véhicule à moteur, car cela permet un nettoyage plus efficace de la vitre, que ce soit le pare-brise ou la vitre arrière , ou éventuellement les phares qui sont également pourvus de dispositifs de nettoyage sur de nombreux types de véhicules. Par nettoyage plus efficace il faut comprendre un nettoyage suffisant avec une utilisation minimum de fluide de lavage.It has proved advantageous to use a heated washing fluid for the windshield washer of a motor vehicle, since this allows more efficient cleaning of the window, whether it is the windshield or the rear window, or possibly the headlights which are also provided with cleaning devices on many types of vehicles. By more effective cleaning is meant sufficient cleaning with minimum use of washing fluid.

Les dispositifs connus de chauffage du fluide de lavage pour le lave-glace des pare-brise de voiture sont construits pour certains types de fabrication de voiture, car ces différents types sont munis de moteurs de constructions diverses.The known devices for heating the washing fluid for the windshield washer for car windshields are built for certain types of car manufacturing, since these different types are provided with engines of various constructions.

L'objet de l'invention est de proposer un échangeur calorique universel destiné au chauffage du fluide de lavage pour laveglace de pare-brise sur tout véhicule à moteur muni d'un moteur refroidi à l'eau.The object of the invention is to provide a universal heat exchanger intended for heating the washing fluid for windshield washer fluid on any motor vehicle fitted with a water-cooled engine.

A cet effet, l'invention propose un échangeur calorique comportant un tube esssentiellement droit avec des pièces de raccordement au circuit d'eau de refroidissement du moteur, le tube droit étant entouré par un tube hélicoïdal pour le fluide de lavage, les enroulements de ce tube étant serrés les uns contre les autres et en contact intime avec le tube droit. Grâce à cette conception simple, l'échangeur calorique peut être fourni comme un accessoire de la voiture que pratiquement tout le monde est capable de monter sur sa voiture.Le montage est réalisé simplement par découpage d'une longueur adéquate d'un tube de refroidissement, insertion de l'échangeur calorique et connection du tube conduisant le fluide de lavage aux buses d'injection du laveglace, au tube hélicoïdal de l'échangeur calorique, de sorte que le fluide de lavage est chauffé par passage à travers le tube hélicoidal, avant d'être pulvérisé par les buses du lave-glace.To this end, the invention provides a heat exchanger comprising an essentially straight tube with parts for connection to the engine cooling water circuit, the straight tube being surrounded by a helical tube for the washing fluid, the windings of this tube being tight against each other and in intimate contact with the straight tube. Thanks to this simple design, the heat exchanger can be supplied as a car accessory that almost everyone is able to mount on their car.The assembly is carried out simply by cutting out an adequate length of a cooling tube , insertion of the heat exchanger and connection of the tube conducting the washing fluid to the injection nozzles of the windscreen washer, to the helical tube of the heat exchanger, so that the washing fluid is heated by passage through the helical tube, before being sprayed by the windscreen washer nozzles.

La conception de l'échangeur calorique dans lequel le tube droit est en aluminium ou en alliage d'aluminium, le tube hélicoldal est en cuivre et l'ensemble de l'échangeur calorique est pourvu d'un revêtement noir, à savoir une peinture plastique permet de réaliser un transfert optimum de la chaleur de l'eau de refroidissement au fluide de lavage. Ainsi, il est possible d'obtenir un fluide de lavage chauffé peu après le démarrage du moteur, à condition que l'échangeur calorique soit inséré de façon appropriée dans le circuit de refroidissement, c'est-à-dire dans le tuyau de refroidissement conduisant du moteur au dispositif de chauffage. Le revêtement appliqué permet d'éviter que l'echan- geur émette rapidement la chaleur dans l'air extérieur.Un autre avantage est que le tube droit est en aluminium ou en alliage d'aluminium, et n'est pas affecté par la teneur en solution d'anti-gel, inhibiteurs de corrosion et agents anti-rouille, etc..., du fluide de refroidissement.The design of the heat exchanger in which the straight tube is made of aluminum or aluminum alloy, the helical tube is made of copper and the entire heat exchanger is provided with a black coating, namely a plastic paint allows optimum heat transfer from the cooling water to the washing fluid. Thus, it is possible to obtain a heated washing fluid shortly after starting the engine, provided that the heat exchanger is properly inserted in the cooling circuit, that is to say in the cooling pipe. leading from the engine to the heater. The coating applied prevents the exchanger from rapidly emitting heat into the outside air. Another advantage is that the straight tube is made of aluminum or aluminum alloy, and is not affected by the content in anti-freeze solution, corrosion inhibitors and anti-rust agents, etc., of the cooling fluid.

L'invention sera mieux comprise en regard du dessin annexé qui représente un mode de réalisation préféré de l'invention.The invention will be better understood with reference to the appended drawing which represents a preferred embodiment of the invention.

Sur la figure, l'échangeur calorique est généralement désigné par 1.In the figure, the heat exchanger is generally designated by 1.

Un tube droit 5, muni à chacune de ses extrémités d'une pièce de raccordement 2 se terminant en une bride 3, est prévu pour être inséré dans le circuit de refroidissement d'un moteur à combustion d'une voiture. Lorsque le fluide de refroidissement chauffé s'écoule à travers le tube 5, celui-ci est rapidement chauffé, car le tube est en aluminium ou en alliage d'aluminium. Autour du tube 5 est placé un tube hélicoïdal en cuivre 6, dont les enroulements sont serrés les uns contre les autres et contre le tube 5. Etant donné le contact intime entre le tube 5 et le tube de cuivre hélicoïdal 6, la chaleur de l'eau de refroidissement est immédiatement transférée au tube 6. Si les bouts 4 du tube de cuivre 6 sont raccordés au lave-glace de pare-brise, de façon que le fluide soit conduit à travers le tube de cuivre 6, avant d'être pulvérisé à travers les buses du lave-glace, le fluide de lavage est chauffé.A straight tube 5, provided at each of its ends with a connecting piece 2 ending in a flange 3, is intended to be inserted in the cooling circuit of a combustion engine of a car. When the heated coolant flows through the tube 5, it is quickly heated, because the tube is made of aluminum or aluminum alloy. Around the tube 5 is placed a helical copper tube 6, the windings of which are tight against each other and against the tube 5. Given the intimate contact between the tube 5 and the helical copper tube 6, the heat of the the cooling water is immediately transferred to the tube 6. If the ends 4 of the copper tube 6 are connected to the windshield washer, so that the fluid is conducted through the copper tube 6, before being sprayed through the windscreen washer nozzles, the washing fluid is heated.

L'échangeur calorique dans son ensemble est revêtu d'un enrobage noir, du type nylon, qui permet d'éviter que l'échangeur dégage trop rapidement la chaleur dans l'air extérieur. Le revêtement a une épaisseur de 0,1-1 mm.The heat exchanger as a whole is coated with a black coating, of the nylon type, which makes it possible to prevent the exchanger from releasing heat too quickly into the outside air. The coating has a thickness of 0.1-1 mm.

L'échangeur calorique selon l'invention n'est pas trop grand pour être place dans pratiquement n'importe lequel des tubes de refroidissement d'un véhicule et peut être ainsi utilisé avec n'importe quel moteur refroidi à l'eau. Le tube droit a une longueur d'environ 12-15 cm, et le diamètre extérieur du tube hélicoïdal en-cuivre 6 est d'environ 3 cm. The heat exchanger according to the invention is not too large to be placed in practically any of the cooling tubes of a vehicle and can thus be used with any water-cooled engine. The straight tube has a length of about 12-15 cm, and the outside diameter of the copper helical tube 6 is about 3 cm.

Claims (2)

REVENDICATIONS 1. Echangeur calorique (1) pour le lave-glace de pare-brise d'un véhicule à moteur, pour le chauffage du fluide de lavage, caractérisé en ce qu'il comporte un tube (5) essentiellement droit avec des pièces de raccordement (2) au circuit d'eau de refroidissement du moteur, le tube droit étant entouré par un tube hélicoïdal (6) pour le fluide de lavage, les enroulements de ce tube étant serrés les uns contre les autres et en contact intime avec le tube droit (5).1. Heat exchanger (1) for the windshield washer of a motor vehicle, for heating the washing fluid, characterized in that it comprises a tube (5) essentially straight with connecting parts (2) to the engine cooling water circuit, the straight tube being surrounded by a helical tube (6) for the washing fluid, the windings of this tube being tight against each other and in intimate contact with the tube right (5). 2. Echangeur calorique selon la revendication 2, caractérisé en ce que le tube droit (5) est en aluminium ou en alliage d'aluminium, et que le tube hélicoïdal (6) est en cuivre, et que l'ensemble de l'échangeur calorique (1) est pourvu d'un revêtement noir, à savoir une peinture plastique. 2. Heat exchanger according to claim 2, characterized in that the straight tube (5) is made of aluminum or an aluminum alloy, and that the helical tube (6) is made of copper, and that the assembly of the exchanger caloric (1) is provided with a black coating, namely a plastic paint.
FR8511232A 1985-01-24 1985-07-23 HEAT EXCHANGER FOR WINDSHIELD SPRAYER Expired FR2580569B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK8500058 1985-01-24

Publications (2)

Publication Number Publication Date
FR2580569A3 true FR2580569A3 (en) 1986-10-24
FR2580569B3 FR2580569B3 (en) 1987-12-24

Family

ID=8153276

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8511232A Expired FR2580569B3 (en) 1985-01-24 1985-07-23 HEAT EXCHANGER FOR WINDSHIELD SPRAYER

Country Status (2)

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DE (2) DE8512409U1 (en)
FR (1) FR2580569B3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609437A1 (en) * 1987-01-14 1988-07-15 Valeo Device for heating a windscreen washer liquid, particularly for a motor vehicle
DE3824483A1 (en) * 1988-07-20 1990-01-25 Bosch Gmbh Robert WIPING DEVICE FOR WINDOWS OF MOTOR VEHICLES
DE3905078A1 (en) * 1989-02-18 1990-08-30 Sueddeutsche Kuehler Behr Container for the washing water of a windscreen and/or headlamp wash/wipe device
DE4114260A1 (en) * 1991-05-02 1992-11-05 Walter Neuber Fa By=pass oil filter for IC engine - is combined with fluid container for screen washer
DE4202791A1 (en) * 1991-05-11 1992-11-12 Linder Rudolf Fa HEAT EXCHANGER FOR WASTEWATER LEADING PIPE OR HOSE PIPES

Also Published As

Publication number Publication date
FR2580569B3 (en) 1987-12-24
DE8512409U1 (en) 1985-07-04
DE3534084A1 (en) 1986-07-24

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