GB2308971A - Vehicle windscreen washer system - Google Patents
Vehicle windscreen washer system Download PDFInfo
- Publication number
- GB2308971A GB2308971A GB9606598A GB9606598A GB2308971A GB 2308971 A GB2308971 A GB 2308971A GB 9606598 A GB9606598 A GB 9606598A GB 9606598 A GB9606598 A GB 9606598A GB 2308971 A GB2308971 A GB 2308971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windscreen washer
- reservoir
- heater
- hot water
- windscreen
- 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- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 13
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
A windscreen washer de-icer system utilises a device, eg a restricted orifice sited in a vehicle's engine cooling system, to provide a pressure difference to cause hot water to flow to and through a heater (3) incorporated in or close to the windscreen washer system. The heater (3) feed pipe is utilised to provide trace heating to the windscreen washer delivery pipe. The heater (3) return flow is routed via the washer fluid nozzles (8) to heat them.
Description
WINDSCREEN WASHER SYSTEMS
This invention relates to vehicle windscreen washer systems and more especially to a system for applying heat to windscreen washer fluid to thaw the same in the event of freezing.
During cold weather, windscreen washer systems of motor vehicles are frequently rendered inoperative for extended periods of time because of freezing of washer fluid in the holding reservoir. This can cause acute driver vision problems because any accumulated dirt on the windscreen cannot be washed away.
This invention sets out to provide a windscreen washer system which does not suffer from, or at least alleviates, this problem.
According to the present invention there is provided a vehicle windscreen washer system which comprises means for causing heated water from the vehicle's cooling system to be conveyed to and through a heating element positioned at or adjacent to a pump for moving fluid from a washer fluid containing reservoir to nozzles through which the washer fluid is discharged onto the windscreen of the vehicle.
The heating element may be positioned within the reservoir or externally of the reservoir. The element may comprise a coil of relatively non-corrosive material and may communicate with the vehicle's cooling system through flexible piping, eg of plastics or rubber. Two such pipes may be provided, one for conveying fluid to an inlet of the heating coil and a second for returning fluid from an outlet of the heating coil back to the vehicle's cooling system via the washer fluid nozzles.
A restricted orifice device is positioned in the cooling system between the connections of the piping to the cooling system.
In one arrangement, the coil is located within the reservoir next to the inlet to the pump. In another arrangement, the coil is positioned next to or around the connection between the reservoir and the pump. In a further arrangement, the coil is wound around the periphery of the reservoir housing.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings.
As shown in the drawing, an orifice (1) having a restricted passageway is sited in the hose which carries water from the engine water pump to the cabin heater of the vehicle. Bleed tubes (2) sited on either side of the orifice (1) utilise the pressure drop across the restricted orifice to cause hot water to be conveyed to a heater (3) in the form of a coil located in close proximity to the inlet of a windscreen washer pump (4) which conveys washer fluid from a reservoir (5) through a hose (6) to the nozzles through which washer fluid is directed onto the vehicle's windscreen. The hot water is carried by flexible hoses (7). One of the hoses (7) is routed adjacent to the hose (6) to provide an additional heating effect.
The heater coil (3) and the close proximity of the hoses (6, 7) ensures that frozen fluid present within the reservoir of the hose (6) is quickly thawed by heat generated within the cooling system of the vehicle's engine. Routing the return pipe through the body of the washer fluid nozzles (8) ensures that these are also thawed of any ice.
It will be appreciated that the foregoing is merely exemplary of systems in accordance with the invention and that modifications can readily be made thereto without departing from the scope of the invention.
Claims (5)
1. A small bleed off of hot water is taken from the engine cooling system and circulated through a heating element incorporated in the windscreen washer reservoir. The hot water flow also applies heat to the windscreen washer feed tube and spray jets.
2. A de-icer system as claimed in claim 1 wherein the pumping pressure drop is provided by two uniform bore tee pieces sited a distance apart in the vehicle cabin heater hose.
3. A de-icer system as claimed in claim 1 or claim 2 wherein the heater element consists of a double skinned reservoir, with hot water circulated between the skins.
4. A de-icer system as claimed in claim 3 wherein the heater element is incorporated in the windscreen washer pump.
5. A de-icer system as claimed in claim 3 wherein the heater element is wound on the outside of the reservoir.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9600762.0A GB9600762D0 (en) | 1996-01-15 | 1996-01-15 | Winscreen washer systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9606598D0 GB9606598D0 (en) | 1996-06-05 |
| GB2308971A true GB2308971A (en) | 1997-07-16 |
Family
ID=10787057
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9600762.0A Pending GB9600762D0 (en) | 1996-01-15 | 1996-01-15 | Winscreen washer systems |
| GB9606598A Withdrawn GB2308971A (en) | 1996-01-15 | 1996-03-29 | Vehicle windscreen washer system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9600762.0A Pending GB9600762D0 (en) | 1996-01-15 | 1996-01-15 | Winscreen washer systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9600762D0 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2348800A (en) * | 1999-04-16 | 2000-10-18 | Julian Curzon | Heated vehicle screen wash reservoir |
| RU2169088C1 (en) * | 2000-09-28 | 2001-06-20 | Белоус Виктор Николаевич | Vehicle glass washer liquid container |
| US6782196B1 (en) | 2003-02-28 | 2004-08-24 | Valeo Electrical Systems, Inc. | Fluid heater with freeze protection |
| US6789744B2 (en) | 2002-01-29 | 2004-09-14 | Valeo Electrical Systems, Inc. | Fluid heater with a variable mass flow path |
| US6839509B2 (en) | 2003-02-28 | 2005-01-04 | Valeo Electrical Systems, Inc. | Fluid heater control apparatus and method with overtemperature protection |
| US6850699B2 (en) | 2003-02-28 | 2005-02-01 | Valeo Electrical Systems, Inc. | Fluid heater temperature control apparatus and method |
| US6889005B2 (en) | 2003-04-04 | 2005-05-03 | Valeo Electrical Systems, Inc. | Fluid heater with compressible cover freeze protection |
| US6912357B2 (en) | 2002-01-29 | 2005-06-28 | Valeo Electrical Systems, Inc. | Fluid heater |
| US6952524B2 (en) | 2002-11-27 | 2005-10-04 | Valeo Electrical Systems, Inc. | Fluid heater temperature balancing apparatus |
| US7190893B2 (en) | 2003-06-27 | 2007-03-13 | Valeo Electrical Systems, Inc. | Fluid heater with low porosity thermal mass |
| FR2958604A1 (en) * | 2010-04-08 | 2011-10-14 | Peugeot Citroen Automobiles Sa | Windscreen washing liquid heating circuit for use in windscreen wiping system of motor vehicle, has conduit traversed by heating fluid to heat washing liquid by heat transfer, where circuit is hydraulically independent from cooling system |
| DE102005031510C5 (en) * | 2005-07-06 | 2024-10-17 | Daimler Truck AG | storage tank of a motor vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888412A (en) * | 1973-04-17 | 1975-06-10 | Kenilworth Research & Dev Corp | Apparatus for heating the fluid in a windshield washer system |
| US4090668A (en) * | 1976-12-06 | 1978-05-23 | Kochenour Paul R | Windshield washer and deicer |
| US4700424A (en) * | 1985-04-03 | 1987-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Windshield washing system for motor vehicles |
| GB2271276A (en) * | 1992-10-10 | 1994-04-13 | Robert Mackay | Windscreen cleaning system |
-
1996
- 1996-01-15 GB GBGB9600762.0A patent/GB9600762D0/en active Pending
- 1996-03-29 GB GB9606598A patent/GB2308971A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888412A (en) * | 1973-04-17 | 1975-06-10 | Kenilworth Research & Dev Corp | Apparatus for heating the fluid in a windshield washer system |
| US4090668A (en) * | 1976-12-06 | 1978-05-23 | Kochenour Paul R | Windshield washer and deicer |
| US4700424A (en) * | 1985-04-03 | 1987-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Windshield washing system for motor vehicles |
| GB2271276A (en) * | 1992-10-10 | 1994-04-13 | Robert Mackay | Windscreen cleaning system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2348800A (en) * | 1999-04-16 | 2000-10-18 | Julian Curzon | Heated vehicle screen wash reservoir |
| RU2169088C1 (en) * | 2000-09-28 | 2001-06-20 | Белоус Виктор Николаевич | Vehicle glass washer liquid container |
| US6789744B2 (en) | 2002-01-29 | 2004-09-14 | Valeo Electrical Systems, Inc. | Fluid heater with a variable mass flow path |
| US6912357B2 (en) | 2002-01-29 | 2005-06-28 | Valeo Electrical Systems, Inc. | Fluid heater |
| US6952524B2 (en) | 2002-11-27 | 2005-10-04 | Valeo Electrical Systems, Inc. | Fluid heater temperature balancing apparatus |
| US6782196B1 (en) | 2003-02-28 | 2004-08-24 | Valeo Electrical Systems, Inc. | Fluid heater with freeze protection |
| US6839509B2 (en) | 2003-02-28 | 2005-01-04 | Valeo Electrical Systems, Inc. | Fluid heater control apparatus and method with overtemperature protection |
| US6850699B2 (en) | 2003-02-28 | 2005-02-01 | Valeo Electrical Systems, Inc. | Fluid heater temperature control apparatus and method |
| US6889005B2 (en) | 2003-04-04 | 2005-05-03 | Valeo Electrical Systems, Inc. | Fluid heater with compressible cover freeze protection |
| US7190893B2 (en) | 2003-06-27 | 2007-03-13 | Valeo Electrical Systems, Inc. | Fluid heater with low porosity thermal mass |
| DE102005031510C5 (en) * | 2005-07-06 | 2024-10-17 | Daimler Truck AG | storage tank of a motor vehicle |
| FR2958604A1 (en) * | 2010-04-08 | 2011-10-14 | Peugeot Citroen Automobiles Sa | Windscreen washing liquid heating circuit for use in windscreen wiping system of motor vehicle, has conduit traversed by heating fluid to heat washing liquid by heat transfer, where circuit is hydraulically independent from cooling system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9600762D0 (en) | 1996-03-20 |
| GB9606598D0 (en) | 1996-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |