EP0214223A1 - Dispositif de chauffage des jets d'eau des lave-glaces d'un vehicule automobile a l'aide d'un echangeur thermique de surface - Google Patents

Dispositif de chauffage des jets d'eau des lave-glaces d'un vehicule automobile a l'aide d'un echangeur thermique de surface

Info

Publication number
EP0214223A1
EP0214223A1 EP86901476A EP86901476A EP0214223A1 EP 0214223 A1 EP0214223 A1 EP 0214223A1 EP 86901476 A EP86901476 A EP 86901476A EP 86901476 A EP86901476 A EP 86901476A EP 0214223 A1 EP0214223 A1 EP 0214223A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
windscreen
motor vehicle
surface heat
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86901476A
Other languages
German (de)
English (en)
Inventor
Otello Baldoni
Sandro Salvucci
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0214223A1 publication Critical patent/EP0214223A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B60S1/487—Liquid supply therefor the liquid being heated

Definitions

  • This application for a patent for an industrial invention concerns a device for heating the water jets of motor vehicle windscreen wipers, by means of a surface heat ex changer.
  • this combined action does not give the desired results, in as much as it does not permit efficient external cleaning of the windscreen. This happens whenever a layer of ice is formed on the windscreen, during the winter season of course, or when, while driving, many small insects are squashed onto the windscreen itself, leaving a compact layer of grease on it.
  • the device according to the invention is intended to obtain the heating of the water jets of windscreen wipers, in an extremely practical, functional and above all economical manner, without interferring in the slightest with the technical characteristics of the wehicle.
  • the device makes use of a surface heat exchanger to be applied either to the tube which conducts the hot water from the engine to the cooling radiator or to the tube which brings the hot water from the engine to the small radiator of the internal air-conditioning system, indifferently.
  • This heat exchanger is made up of two tubes, one inside the other, so that an airtight hollow space is created between the two.
  • the most inner tube of the heat exchanger must be connected at both ends to the water tube which goes from the engine to the radiator.
  • the latter tube should be interrupted and the exchanger itself inserted at the cut off ends, so that water can flow inside it.
  • the abovementioned hollow space of the exchanger is in contact with the outside by means of two small tubes in which are inserted: in one, the duct which brings the liquid for cleaning the windscreen from the tank to the exchanger, in the other, the small tube which starts from the exchanger and conducts this liquid to the spray nozzle on the windscreen.
  • the hot water from the engine by passing through the most inner tube of the exchanger, ensures the heating of the walls; the liquid for cleaning the windscreens comes into contact with these walls while passing through the hollow space and is heated in its turn, so as to be able to reach the spray nozzle and therefore the actual windscreen, at a temperature which is high enough to melt any layer of ice or film of grease.
  • Figure 1 is a section of the device according to the invention with partial representation of the inlet and outlet tubes.
  • the invention is made up of an inner tube (1) with two nozzles at the ends on which the cut off ends of the duct through which the hot water flows, are inserted and tightly fastened by means of normal hose clips.
  • a tube (2) On the outside of the tube (1) in a coaxial position, a tube (2) is inserted, so as to create a thin airtight hol low space which must be crossed by the water feeding the spray nozzles.
  • the water enters and goes out of two nozzles placed at the two ends of the tube itself (2).
  • the cut off ends of the duct which takes the water from the tank to the windscreen are inserted and clamped to these nozzles.

Landscapes

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

Abstract

L'échangeur thermique se compose de deux tubes coaxiaux (1, 2) positionnés l'un dans l'autre de manière à former un espace creux étanche à l'air. L'eau chaude provenant du moteur traverse le tube interne (1) et le liquide du lave-glaces traverse l'espace creux de manière à s'échauffer lorsqu'il entre en contact avec les parois du tube interne (1), chauffé à son tour par l'eau à haute température qui le traverse.
EP86901476A 1985-02-14 1986-02-14 Dispositif de chauffage des jets d'eau des lave-glaces d'un vehicule automobile a l'aide d'un echangeur thermique de surface Withdrawn EP0214223A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8500605A IT8500605A0 (it) 1985-02-14 1985-02-14 Dispositivo per riscaldare l'acqua dei lavavetri degli automezzi, tramite una scambiatore di calore a superficie
IT60585 1985-02-14

Publications (1)

Publication Number Publication Date
EP0214223A1 true EP0214223A1 (fr) 1987-03-18

Family

ID=11099821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901476A Withdrawn EP0214223A1 (fr) 1985-02-14 1986-02-14 Dispositif de chauffage des jets d'eau des lave-glaces d'un vehicule automobile a l'aide d'un echangeur thermique de surface

Country Status (4)

Country Link
EP (1) EP0214223A1 (fr)
AU (1) AU5511786A (fr)
IT (1) IT8500605A0 (fr)
WO (1) WO1986004868A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605273B1 (fr) * 1986-10-20 1988-12-23 Valeo Dispositif de chauffage d'un liquide de lave-glace, notamment pour vehicule automobile
DE3825330C3 (de) * 1988-07-26 1995-06-14 Behr Gmbh & Co Vorrichtung zum Aufwärmen der Waschflüssigkeit einer Scheibenwaschanlage eines Kraftfahrzeuges
GB2274387A (en) * 1993-01-13 1994-07-27 David Dunlavey Vehicle windscreen washer with heated jets
DE102006006211B3 (de) 2006-02-09 2007-09-20 Rehau Ag + Co Baugruppe zum Leiten und Temperieren einer Harnstoff-Wasser-Lösung und Verfahren zu deren Herstellung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005414B1 (fr) * 1978-04-24 1982-04-07 Anderstorps Werkstads Aktiebolag Dispositif de chauffage du liquide pour installations de lavage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8604868A1 *

Also Published As

Publication number Publication date
AU5511786A (en) 1986-09-10
WO1986004868A1 (fr) 1986-08-28
IT8500605A0 (it) 1985-02-14

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19870115