GB2547480A

GB2547480A - Manually controlled, vehicle engine coolant plate heat exchanger for direct hot water delivery from a vehicle via water fed pole

Info

Publication number: GB2547480A
Application number: GB1602999.3A
Authority: GB
Inventors: King Jordan
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-22
Filing date: 2016-02-22
Publication date: 2017-08-23
Also published as: GB201602999D0

Abstract

A heating system in a vehicle to provide hot water for cleaning comprises a heat exchanger G located at the engine coolant system A, for the heating of water from an on board tank L. The water can then be fed to a pole used for cleaning windows. The water can also be manually switched and directed back into the tank at varying speeds during driving to increase the ambient tank temperature in high engine power situations. On demand water heating directly through the heat exchanger to the water fed pole F can occur while the engine is idling.

Description

Title

Manually controlled, vehicle engine coolant plate heat exchanger for direct hot water delivery from a vehicle via water fed pole

Background

Many pure water window cleaners are resorting to risky LPG gas shower burners or diesel burners in their vehicles in order to heat water for more efficient water fed pole cleaning.

In addition to the high cost of powering this type of heating device, there are many risks associated including poor installation, gas leaks and carbon monoxide from exhaust gases.

Therefore our invention proposes a unique way to achieve hot water for water fed pole cleaning by manually switching it through an engine coolant plate heat exchanger which has been fitted to the vehicle engine coolant system, directly to the water fed pole during idling, or further manual switching to direct water back into the tank with an increased flow rate, to take advantage of high engine power situations while driving and increase the ambient tank temperature, as dictated by the user to further assist with on demand heating.

Water fed pole cleaning requires a sufficiently low flow rate of water that it can be adequately heated by waste engine heat during vehicle idling for short periods. By leaving the engine running and passing a small flow of on board cold water directly through an engine coolant plate heat exchanger and to the pole for cleaning, on board water can be sufficiently heated to significantly improve cleaning.

In addition, the proposed invention includes a manual or wireless switching to hugely increase the flow rate and divert into the on board water fed pole system tank, as opposed to the water fed pole, to diligently take advantages of high engine power situations during driving as dictated by the user in short bursts so as not to detrimentally affect the engine running temperatures. This increases the ambient on board tank temperature to further assist with on demand heating directly through the heat exchanger and to the water fed pole.

Water fed pole cleaning requires such a small flow rate through the exchanger as opposed to all other cleaning applications that it does not detrimentally affect the engine when directed straight to the pole for short periods. For further assistance, ambient tank temperature can quickly boosted with a manual or wireless switch during driving in high engine power situations such as open road or hills. The proposed invention gives the user full control of hot water production and can be adjusted via a manual variable flow controller and manual valves to suit all engine types without detrimentally reducing engine temperatures.

Statement of invention

Vehicle engine coolant plate heat exchanger through which water can be manually switched from an on board cold water tank, directly to a water fed pole, for the purpose of using engine idling heat to heat the water and improve water fed pole cleaning results.

Including manual switching of the on board water pumps through the heat exchanger and back to the tank, to diligently take advantage of high engine power situations during driving. A significantly increased flow of pure water through the heat exchanger quickly increases the ambient water temperature in the on board water fed pole system tank in short bursts without negatively affecting the engine running temperature which assists with heating when pure water is directed through the heat exchanger directly to the water fed pole.

Advantages 1) Sufficient hot water can be achieved on demand for short periods using waste heat from the vehicle engine during idling due to the low flow rate nature of water fed pole cleaning. 2) Ambient temperatures of the on board pure water can be diligently boosted in high engine power situations with manual switching during driving and diversion back into the tank which further assists when using the water on demand and directly through the heat exchanger to the water fed pole. 3) Gives the user infinite heated water in all situations directly through the heat exchanger from an on board tank and onto the water fed pole. 4) Allows manual switching of water and flow rate through the heat exchanger and back to the tank in high engine power situations to increase the ambient tank temperature to further assist with on demand water heating directly to the water fed pole. 4) Does not bum diesel or LPG and is therefore a more environmentally efficient way to produce hot water for our industry 5) Significantly improves safety in comparison with LPG or diesel burners mounted inside work vans with insufficient ventilation and risks of explosions. 6) Includes variable speed pumps which can be manually set to suit the heat output of any engine so as not to negatively affect the engine running temperature. 7) Allows on demand heating directly to the water fed pole or the accumulation of heat into the on board tank as dictated by the user during driving.

Introduction to drawings

An example of this invention will now be described by referring to the accompanying drawings:

Figure 1 shows a side elevation and view into a van with internally mounted water tank, pump engine and plate heat exchanger.

Detailed description

This proposed manually controlled, vehicle engine coolant plate heat exchanger for hot water delivery from a vehicle via water fed pole is designed to produce hot water as dictated by the user and is not thermostatically controlled.

Existing patent applications relate to a thermostatically controlled system for transferring heat from the engine to an on board tank but our proposed design gives the user more flexibility with manually switched on demand heating and manual switching for taking advantage of high engine power situations while driving, as dictated by the user, for transference back into the on board tank to further assist with on demand heating.

Therefore the invention relates to a heat exchanger (G) which is permanently incorporated into the vehicle engine coolant system (A) and a manually controlled switching system (D) to select either a small flow of on board pure water through the heat exchanger for direct delivery to the work area via water fed pole using manually controlled valves (E) and non return valve (H) while the engine is idling, or a fast flow through the heat exchanger via manually controlled fast pump (I) and manually controlled valves (E) and and non return valve (H) to divert back to the tank in high engine power situations, as dictated by the user.

When the situation allows, such as on motorways the system can be manually switched while driving to extract more heat from the engine cooling system (A) to increase the ambient water temperature in the tank to further assist the on demand function. This allows the user to take advantage of high engine power situations so as not to detrimentally decrease the engine running temperature.

When there are only short journey times between jobs, and there is insufficient time to heat the entire on board tank, the engine can remain running and a small flow of water manually switched through the exchanger for immediate delivery to the water fed pole (B) via the delivery reel (J) while the engine remains idling.

Claims

Claims 1) A manually controlled vehicle engine coolant system heat exchanger for the heating of water, on demand, from a vehicle mounted cold water tank directly through the heat exchanger and on to a water fed pole, which can also be manually switched back into the tank, during driving, to increase the ambient tank temperature in high engine power situations as dictated by the user, to further assist with on demand heating.
2) A manually controlled vehicle engine coolant system heat exchanger for the heating of water, on demand, from a vehicle mounted cold water tank directly through the heat exchanger and on to a water fed pole, which can also be manually switched, during driving, back into the tank to increase the ambient tank temperature in high engine power situations as dictated by the user, to further assist with on demand heating, according to claim 1, where the heated water can be manually switched to the on board tank in high engine power situations while driving for the purpose of increasing the ambient temperature of the on board water to assist with on demand heating through the exchanger and directly to the water fed pole.
3) A manually controlled vehicle engine coolant system heat exchanger for the heating of water, on demand, from a vehicle mounted cold water tank directly through the heat exchanger and on to a water fed pole, which can also be manually switched back into the tank, during driving, to increase the ambient tank temperature in high engine power situations as dictated by the user, to further assist with on demand heating, according to claim 1, where the heated water can be manually switched to direct on demand heating, where the on board water is passed directly through the heat exchanger and directly on to the water fed pole while the engine is idling.
4) A manually controlled vehicle engine coolant system heat exchanger for the heating of water, on demand, from a vehicle mounted cold water tank directly through the heat exchanger and on to a water fed pole, which can also be manually switched back into the tank, during driving, to increase the ambient tank temperature in high engine power situations as dictated by the user, to further assist with on demand heating, according to claim 1, where the on board water is directed through the heat exchanger via a variable speed pump so that the removal of heat from the engine is manually adjustable by the user so as not to remove too much heat and therefore prevent detrimentally affecting the engine running temperature, as dictated by the user and differing vehicle engine heat outputs.
5) A manually controlled vehicle engine coolant system heat exchanger for the heating of water, on demand, from a vehicle mounted cold water tank directly through the heat exchanger and on to a water fed pole, which can also be manually switched back into the tank, during driving, to increase the ambient tank temperature in high engine power situations as dictated by the user, to further assist with on demand heating, according to claim 1, where insulation is added to the on board tank, heat exchanger and connecting pipework so as to extract and maintain as much heat as possible.