DE3104971A1 - Device for the preheating of internal combustion engines - Google Patents

Abstract

Device for the preheating of internal combustion engines in the form of an electrical heating element to be fitted into the oil sump of the engine.

Description

Device for preheating internal combustion engines

This often occurs with internal combustion engines, especially automotive engines Problem that the engine does not start or starts poorly at low temperatures and when starting the engine has starting difficulties, resulting in increased fuel consumption occurs, which can be up to 2 liters. It also results in addition to the minor In the long run, the degree of performance means increased wear and tear on the engines.

This disadvantage is naturally to a certain extent due to well-heated Remedy garages. However, this results in the required operating heat of the engine unavailable.

These disadvantages mentioned here occur in particular with the so-called Lantern garages or on deployment yards for municipal vehicles such as the police, fire brigade etc. to an increased extent.

The object of the invention is to eliminate these disadvantages and a To create a device with which vehicles are located outside of garages the required operating temperature can be reached. The solution to this problem consists in that an oil pan is used in which a heating rod known per se is located, which has electrical cable connections and via the normal power grid can be fed. Power connections are regularly located at the staging areas and in garages.

The heating rod expediently has a thermostat through which When the required operating temperature is reached, the power is switched off or after Reducing the operating temperature is switched on again.

The heating rod can be easily combined with a conical Oil drain plug laterally in a hole in the oil pan with the usual threaded ring and Insert seal. The power cable can then run along the oil pan through the body floor be relocated to the rear of the vehicle, where a standard power plug is attached will.

The heating of the engine oil has the additional advantage of that as a result of the heat given off by the oil, the engine block also has a certain degree of heat obtained so that an easier start-up and start-up with reduced fuel consumption given is.

Experiments have shown that oil temperatures can be achieved with the aid of this invention can be reached up to 80 °. This temperature is almost the usual operating temperature for Otto engines, which is around 80 ° - 110 °.

The invention is shown in the drawing FIGS. 1-3.

Fig. 1 shows a conventional oil pan 1 of a motor vehicle engine 2, in the side a heating rod 3 is inserted by means of an oil screw 4. The screw 4 has a cable connection 5 which leads through the body to the rear of the vehicle.

A common connector is located at the rear of the vehicle 6, from which a connection to the power grid 7 can be made.

Fig. 2 shows a similar heating rod installation, in which the type of fastening is intended for subsequent installation.

Fig. 3 shows the cable routing from the heating rod in the oil pan to the rear of the vehicle with a possible power connection.

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Claims (5)

Claims / 1g device for preheating internal combustion engines, characterized in that an electric heating element is installed in the oil pan of the engine is built in. 2. Apparatus according to claim 1, characterized in that the heating rod is screwed into the side of the oil pan. 3. Apparatus according to claim 1 to 2, characterized in that the heating element is connected to an oil drain plug. 4. Apparatus according to claim 1 to 3 gekennzethnet characterized in that the Heating rod has a cable connection which is laid to the rear of the vehicle. 5. Apparatus according to claim 1 to 4, characterized in that the cable connection at the rear of the vehicle connects to a power supply enables.