RU2256084C1 - Diesel-driven generator set - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention can be used as self-contained supply source designed for supplying consumers with direct and alternating current. Proposed set contains diesel engine with closed water cooling system. Set is installed on base and is enclosed in case filled with noise-absorbing material. Generator is driven by V-belt drive from pulley installed on crankshaft of diesel engine and pulley of generator. Idler pulley is installed between said pulleys, being provided with belt tension adjusting and vibration compensation mechanism. Set is furnished with turbine installed in exhaust pipe. Expansion tank is thermostatically controlled.

EFFECT: reduced level of vibrations, possibility of starting within wide temperature range, and self-contained operation.

Description

The invention relates to the field of mechanical engineering and can be used as a stand-alone power supply unit, designed to power consumers with direct and alternating current.

A device for driving aggregates and energy consumers of an internal combustion engine containing a drive pulley located on the crankshaft of the engine and driven pulleys connected to the shaft of the driven units, said pulleys being interconnected by a belt drive / 1 /.

Said device comprises means for adjusting the position of the driven pulleys, made in the form of a threaded pair located with the possibility of axial movement of the driven pulleys relative to the leading one.

The main disadvantages are the complexity and low reliability of kinematic communication and regulation of the position of the pulleys, limited operational capabilities and the exclusion of the formation of an autonomous unit, for example, to provide electricity to consumers.

The closest in technical essence and the achieved result is a diesel electric unit containing a water-cooled engine, a direct current generator connected to the engine crankshaft by kinematic coupling, including drive wheels fixed on the axes of the crankshaft, and a generator, and an intermediate wheel located between them / 2 /.

In this unit, the kinematic connection is made in the form of gears, which is a source of increased noise, low reliability of gearing and the exclusion of the possibility of implementation as an autonomous unit to supply consumers with direct and alternating current in a wide range of electrical characteristics.

The claimed invention eliminates these disadvantages and improves the performance of the unit.

The technical result is achieved by the fact that a diesel power plant containing a water-cooled engine, a direct current generator. connected to the engine crankshaft by a kinematic connection, including drive wheels fixed on the axes of the crankshaft and the generator, and an intermediate wheel placed between them, according to the invention, the unit is equipped with an external casing with controlled louvers in the side wall, the cavity of the casing is filled with vibration-absorbing material in the upper wall the casing is made rotatable cover, the unit is equipped with an expansion tank and an additional thermostatically controlled water tank in communication with the expansion tank, e wheels and the intermediate wheel are made in the form of pulleys connected by a V-belt drive, the unit is also equipped with a tension and vibration compensation mechanism for the engine and generator in the form of a vertical cylindrical spring connected to the frame of the unit frame and the rotary axis of the intermediate pulley. The unit can be additionally equipped with a gas turbine located in the exhaust pipe of the engine, connected by a pulley and V-belt transmission with a crankshaft pulley. The expansion tank can be made thermostatically controlled.

The analysis of patent and information materials showed that the claimed power unit is not known, which allows us to conclude that the technical solution meets the criterion of "novelty." In domestic and world practice, diesel electric units are not known that solve the problem using the technical means used in the claimed unit, i.e. the invention meets the criterion of "inventive step".

Figure 1 shows a General view of a diesel power unit; figure 2 presents a top view without the upper part of the casing; figure 3 is a longitudinal section with an intermediate pulley; figure 4 shows the implementation of the unit with a gas turbine.

The diesel electric unit contains a water-cooled engine (diesel) 1, the electric unit is installed on the base 2 with the frame frame 3. The unit is equipped with a casing 4 filled with sound-absorbing material, a rotatable cover 5 is installed in the upper part of the casing 4 for inspection and repair.

The base of the electric unit is mounted on shock absorbers, the casing 4 can adjoin the base 2 through shock absorbers 7. In the side wall of the casing 4, shutters 8 with a thermomechanical drive 9 are installed. Inside the unit there is a fuel tank 10, an expansion tank and an additional tank 11 and 12, respectively. Tanks 11, 12 can be made thermostatic. An additional tank 12 performs the function of a heat accumulator, which allows for the launch and operation of diesel 1 at low temperatures. The electric unit includes a radiator 13 with thermostats 14 of the cooling system. In the rear wall of the casing 4 there is an ejector 15 of the inlet pipe of the ventilation of the engine cooling system. A drive pulley 16 is installed on the axis of the crankshaft of diesel engine 1, a drive pulley 17 is installed on the axis of the generator, an intermediate pulley 18 is located between them. The latter is equipped with a vertical cylindrical spring connected to the frame 3, and a rotary axis of the pulley 18. The presence of a spring allows a constant tension mechanism to be implemented. belt 20 of V-belt transmission of pulleys 16 and 17, as well as provide compensation for vibration of the engine and generator, linear (length) deformation of the belts in the range of positive and negative temperatures and the function of conqueror. In the exhaust pipe 21 of the engine, a gas turbine 22 can be installed, on the axis of which a pulley 23 is stopped, connected by a V-belt transmission with a pulley 16 of the crankshaft of the engine. An additional tank 12 is in communication with the tank 11 using a discharge pipe 24, the latter connected to the radiator 13, and the pipe 25 after the radiator.

Starting the engine (diesel) 1 is carried out in the usual way using a battery, electric starter or using a manual start device. Further work and exit to the operating mode of the engine 1 is provided using standard fuel equipment. The presence of a thermostatically controlled tank 12 allows for a cold start at temperatures up to -40 ° C. The electric generator produces direct current with voltage up to 44 V and power up to 11 kW. Alternating voltage is provided by the inverter = 44 V / -220 V, 50-60 Hz.

The use of an autonomous electrical unit allows providing power to consumers during emergency repair search and rescue, production, construction and household needs.

The implementation of the electrical unit with noise absorption, vibration reduction, as well as ensuring the launch in a wide temperature range up to -50 ° C and achieve complete autonomy in operation provides reliability and high performance.

Sources of information

1. SU 1790688. Ml. F 02 B 67/04, publ. 01/23/93.

2. RU 2167319, cl. F 02 B 67/04, publ. 05/20/2001.

Claims (3)

1. A diesel power unit containing a water-cooled engine, a direct current generator connected to the engine crankshaft by kinematic coupling, including drive wheels fixed to the axles of the crankshaft and generator, and an intermediate wheel located between them, characterized in that the unit is equipped with an external casing with controlled shutters in the side wall, the casing cavity is filled with vibration-absorbing material, a rotary cover is made in the upper casing wall, the unit is equipped with an expansion tank and an additional thermostatically controlled water tank in communication with the expansion tank, the drive wheels and the intermediate wheel are made in the form of pulleys interconnected by a V-belt drive, the unit is also equipped with a tension and vibration compensation mechanism for the engine and generator in the form of a vertical coil spring connected to the frame of the unit frame and rotary axis of an intermediate pulley. 2. The electric generator according to claim 1, characterized in that it is additionally equipped with a gas turbine located in the exhaust pipe of the engine connected by a pulley and V-belt transmission with a crankshaft pulley. 3. The power plant according to claim 1, characterized in that the expansion tank is made thermostated.

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