GB2274387A

GB2274387A - Vehicle windscreen washer with heated jets

Info

Publication number: GB2274387A
Application number: GB9300513A
Authority: GB
Inventors: David Dunlavey
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-13
Filing date: 1993-01-13
Publication date: 1994-07-27
Also published as: GB9300513D0

Abstract

Windscreen washer jets 1 are heated by conduction of heat by a conducting wire 3 from the exhaust manifold 2 of an internal combustion engine. One end of the heat conducting wire 3 is wrapped around the exhaust manifold 2 of the engine in such a way as to collect heat from it and conduct the heat through to the other end of the wire 3 which is connected to the windscreen washer jets 1. Part of the heat conducting wire 3 may be insulated 4. A screw connector 5 may be provided to facilitate disconnection of the heat conducting wire 3 from the exhaust manifold 2. <IMAGE>

Description

WARM WINDSCREEN WASHER JETS This invention relates to the warming of windscreen washer jets.

Windscreen washer jets are part of the equipment used to clean thw windscreens of motor vehicles. In conjunction with a screen wash reservoir and pump with associated piping, the jets direct wash fluid onto the windscreen.

However, the washer jets are prone to freezing in cold weather, even when anti freezing agents are added to the screen wash reservoir. This causes inconvenience and creates a potential danger to motor vehicle drivers as windscreens becomesmeared as the windscreen wipers scrape across dry and dirty windscreens..

According to the present invention there is provided a method of warming the windscreen washer jets by conductring heat generated in the internal combustion engine to them.

A specific embodiment of the invention will now be described by way of an example with reference to the accompanying drawing in which: Figure I shows the under bonnet view of an internal combustion engine and the windscreen washing equipment.

Figure 2 shows the windscreen washer jets with heat conducting wire attached.

Referring to the drawing the heat donducting wire 3 is wrapped three times around the exhaust manifold 2 of the engine. To facilitate disconnection of the heat conducting wire from the engine a simple screw connection 5 is fitted. Part of the wire 3 is insulated 4 to retain heat. The other end of the heat conducting wire 3 is wrapped around the lower body of the windscreen washer jets I.

The object of the invention is to provide a degree of warmth to the windscreen washer jets by conducting heat generated in the engine. The degree of this warmth will be determined by several factors: How the conducting wire 3 is connected to the engine (in this specific case wrapped three times around part of the exahust manifold 2).

The type of heat conducting wire 3 used (in this specific case 3mm diameter copper wite 60cm in length.

Whether any part of the heat conducting wire 3 is insulated 4. How the heat conducting wire 3 is connected to the windscreen washer jets I.

Claims

I. A method of warming the windscreen washer jets of motor vehicles by conducting heat generated by the internal combustion engine.
2. A method of warming the windscreen washer jets as claimed in Claim I where heat from a hot part of a internal combustion engine is conducted to the windscreen washer jets.
3. A method of warming the windscreen washer hets as claimed in Claims I and 2 where heat from a hot part of an internal combustion engine is conducted by a conducting wire to the windscreen washer jets.
4. A method of warming windscreen washer jets as claimed in Claims 2 and 3 where heat from the exhaust manifoled is conducted to the windscreen washer hets.
5. A method of warming the windscreen washer hets of motor vehicles as substationally described herein with reference to Figures I and 2 of the accompanying drawings.