SU78664A1 - Method and device for facilitating start-up of gas engine transport engines in winter - Google Patents

Description

The sharp increase in the viscosity of the oil in the crankcase with a decrease in temperature, as well as the intense heat exchange between air and the walls of the cylinders during compression, create great difficulties in starting gas-transport engines in winter conditions.

The best way to facilitate engine starting in the winter is to preheat it rationally.

Known methods for heating gas-generating engines before launching them in winter, such as gas furnaces and heaters, which heat the engine with water or steam through a water jacket and outer walls, are relatively complex, and efficient heating takes place in this way. long-time

In the present invention, in order to simplify the method of pre-heating the engine, reducing time and increasing efficiency, the heating of the gas-generating engine is carried out by passing through the crankcase a mixture of combustion products of generator gas and air-sucked

auxiliary fan. At the same time, part of the mixture is directed to the heating of the suction system of the engine and the battery.

The drawing shows a diagram of an apparatus for carrying out a method for facilitating the start-up of gas-transport gas-generating engines in winter.

The gas generator is ignited using a fan / ignition in the usual way to produce a combustible gas. The combustible gas enters the mixer 2, into which the air regulated by the valve 8 is supplied through the pipe // to reduce the high temperature of the gas combustion products behind the mixer 2 into the gas pipeline through the pipe 3 the secondary air is supplied, the amount of which is regulated by the valve 9.

. The products of combustion of gas mixed with air are directed into the crankcase 4 of the engine for heating the crankcase, oil films and upper oil layers.

For effective heating of the crankcase, a suction fan 6 is used, which sucks the products of combustion from the crankcase to the atmosphere.

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The fan b is driven from the shaft of the fan 1 for igniting the gas generator. The intensity of the engine warm-up is regulated by the quantity of the combustion gas of the generator gas and air entering the crankcase. For this purpose, a shutter 10 is provided, which is installed in the supply line mix.

Simultaneously with the engine heating, part of the gas through the valve 5 can be directed to heat the lower crankcase and to the suction system, as well as to heat the battery, a slight warming of which, before using the starter, makes it easier for the engine to start and increases its capacity.

Subject invention

Claims (3)

1. A method of facilitating the start of transport gas-generating engines in winter, so that in order to increase the temperature of the walls of the engine and the oil in its crankcase, as well as the suction system, they are heated by a mixture of combustion products gas, combusted in a gas mixer, and additionally sucked air. 2. A device for carrying out the method according to c. 1, characterized in that, in order to reduce the temperature of the combustion products of the generating gas by injecting additional air, a branch pipe with a throttle valve communicating with the atmosphere is installed behind the gas pipeline. 3. A device for carrying out the method according to claim 1, characterized in that for efficient heating of the crankcase, a suction auxiliary fan driven from the shaft of the gas generator ignition fan is used.