DE2927680A1 - Heat store chemical cpd. used in heat engine, e.g. of vehicle - pref. is sodium sulphate deca:hydrate taking heat from cooling water, exhaust gas and lubricant - Google Patents

Abstract

Heat store chemicals (I) used in heat engines, e.g. vehicles, are used to take heat from the cooling water, exhaust gas or lubricant, Na2SO4,10H20 (IA) being suitable. A 3-way valve is fitted, so that a pump and the heat exchanger can be connected to the heat store and the stored heat can be removed for (pre)heating. The stored heat is available for heating when the engine is switched off, to raise the engine temp more rapidly after a cold start and for preheating. It can also be used in other systems, e.g. domestic and factory heating and in small portable heaters.

Description

Title:

Use of heat accumulators in heat engines, e.g. in vehicles.

Field of application: The excess heat given off by heat engines should be stored in chemicals for sparing use.

State of the art: those involved in the combustion processes in thermal energy machines Occurring heat (also frictional heat) is undesirable if the one temperature overside that is harmful to the operation of the machine.

This excess heat gets frozen over the cooling water and the Oil or directly into the ambient air or, in the case of watercraft, into the water.

Solution: The idea of my invention is now this warmth in one To store containers.

The storage tank can be installed with stationary or mobile units take place.

The heat exchange or heat dissipation within the storage tank takes place in the usual way according to the state of the art. For example via a hose or coiled tubing with enlarged surface.

The stored heat is therefore still available when the engine is switched off.

If the storage tank is permanently installed, the heat from the vehicle heating system to serve.

When the outside temperature is low, the storage tank helps the cold start Engine to reach operating temperature faster.

It is also possible to preheat the machine.

Otherwise, the stored heat can also be converted into other heat required Enter systems.

These other systems primarily include living and working space heating.

The heat is then transported via heat exchangers and pipes directly or via heat exchanger ii house.

A heat storage unit located in or near the house can also be used with the heat be fed.

Smaller storage containers can be provided with a handle use very mobile.

The previous task of my invention is the possibility of subsequent Installation in vehicles.

I suggest using Glauber's salt as the actual storage mass.

The formula is: Na2SO4 # 10H2O For new aggregates to be developed the heat balance of the machines should be applied to the storage first to supply with the excess heat.

The easiest way to do this with d-em cooling water is through the tried and tested Thermostatic regulation.

The heat present in the exhaust pipes should be transferred directly to the storage medium be supplied if this medium is suitable for the temperatures occurring there is.

Suitable are e.g. B. the following eutectic mixtures.

NaF / CaF2 / MgF2; NaF / MgF2 LiF / MgF2; LiF / NaF / MgF2 The advantage in the application of this storage method lies in a better use of the used Fuels.

Electric radiator fans have shorter operating times.

Explanations of the enclosed drawings.

Figure 1 shows the cooling water scheme in a motor vehicle. expanded to include heat storage.

1 Motor 2 Cooling water pump 3 Thermostatic valve 4 Radiator 5 Heater valve 6 Heating extended by 7 three-way valve 8 Pump 9 Storage tank with heat exchangers 10 Connections for heat extraction The pump 8 is if there is no possibility of a Engine preheating not required.

The valve positions in different operating states 1. Normal motor start-up phase 2. Engine preheating 3. Heat storage 4. Heat extraction from the storage tank with the rotor switched off for the heating 5. Heat extraction for the heater with the engine running Figure 2 shows; an arrangement for a mobile storage device with self-closing clutches being opened by the storage weight and one or more clamps with or without spring force. When the accumulator is lifted off, the couplings close.

Self-locking couplings can also be attached from the side or from above will. S = clamping bracket Figure 3 shows an arrangement for a mobile storage unit where the mentioned cooling water flows through a double-walled conical vessel.

The storage container is located in the vessel.

The arrangement is isolated from the outside.

Figure 4 shows an arrangement for using the radiant heat at Exhaust pipes (A) The storage medium comprises the largest possible part of the exhaust system.

Figure 5 shows an arrangement for using the radiant heat with intermediate heat exchanger.

Heat energy storage Figure 6 shows an arrangement with ii storage tanks integrated exhaust pipes. The sheathing of the exhaust pipes can be wholly or partially take place.

Figures 7 and 8 show arrangements for heat transfer between the vehicle. Heat storage and Hsus heating systems.

In Figure 7, the heat is temporarily stored (summer).

L e r s e i t e

Claims (1)

PATENT CLAIM General term: 1. Use of heat-storing chemicals in heat engines, for example. in vehicles. Identifying part: The use is characterized in that the heat of the cooling water or the rejection or the lubricant to be removed from the cooling system in suitable chemistry. Na3SO4 is considered suitable. 10 H2O generic term of the subnap requirement: 2. To the heat engine necessary internals so that the heat energy the memory can be fed. Identifying part: Identified by the fact that a three-ege valve, a pump and the heat exchanger in the memory are switched so that the cooling water Contained heat energy can be fed to the storage. In addition, stored warmth can be taken for heating and engine preheating will. 3. Preamble to the dependent claim: Switching of temperature-controlled devices Valves for an optimized engine operating temperature and maximum heat storage Characteristic part: characterized in that instead of opening the normal large cooling circuit via the cooler of the cooling water circuit to the storage tank first is fed. 4. Preamble of the sub-claim: Use of self-closing Couplings when using mobile storage systems. Identifying part: Identified by this, the self-closing part The couplings close the heat exchanger in the storage tank when the storage tank is removed. The same heat exchanger then functions in reverse when extracting heat. 5. Preamble of the sub-claim: Use of exhaust gas heat. Characteristic part: Characterized by the fact that the radiation or conduction heat from the exhaust gas system directly or via the storage heat exchanger is fed. Eutactic mixtures can be used for the storage. 6. Preamble of the sub-claim: Supply of other thermal energy required systems from the memory of the heat engine. Identifying part: Identified by the fact that an im or the heat exchanger located at the storage tank removes the heat and the heat via pipes can be fed to a large storage facility or used directly.