RU2027041C1 - Generating plant - Google Patents

Abstract

FIELD: engine engineering. SUBSTANCE: contact rings are positioned at the end of a crankshaft of the engine. Voltage is supplied to a rotor winding, which is positioned on counterweights, through the rings. In rotation of the crankshaft magnet flux flows through supports of the crankshaft and the stator yoke. EFFECT: improved design. 2 cl, 2 dwg

Description

 The invention relates to mechanical engineering, namely to engine building, and can be used to generate electricity.

 A known power generation system consisting of an engine and a generator coupled to it, for example, an automobile system.

 The known design has disadvantages: the generator is a separate unit that requires additional mechanical transmission, takes up space in the system, is heavy, bulky.

 Also known is a generator set comprising an internal combustion engine with a crankcase and crankshaft, and a generator with stator and rotor windings.

 The disadvantages of the installation include its large overall dimensions, which is explained by the fact that the generator is made in the form of a separate unit.

 The aim of the invention is to reduce the overall dimensions of the installation.

 The goal is achieved in that in a generator set containing an internal combustion engine with a crankcase and a crankshaft mounted on supports and having counterweights, and a generator with a stator and rotor winding, the ends of which are connected to a sliding contact device, the crankshaft supports are rigidly attached to the crankcase, made of non-magnetic material, and the generator stator is made in the form of a yoke with a winding closed by a safety casing and mounted on the outside of the crankcase against the supports of the crankshaft, Indigenous neck which is made of nonmagnetic material, the rotor coil is fixed to the counterweight and a contact device is arranged on the crankshaft.

 In FIG. 1 shows the installation with the position of the engine piston at bottom dead center; in FIG. 2 - the same, with the position of the engine piston at top dead center.

 The generator (Fig. 1) is placed inside the internal combustion engine 1, consisting of a cylinder 2, a piston 3 placed in it, a connecting rod 4, a crankshaft 5 with balances 6 mounted on bearings 7, which are rigidly fixed to the bottom of the crankcase 8, which is made of non-magnetic material. Outside, the crankcase 8 is equipped with a yoke 9 of magnetically permeable material on which the stator coil 10 is placed. The ends of the yoke 9 are, as it were, an extension of the supports 7 and are a horseshoe-shaped magnet (electromagnet). The bend of the crankshaft 5 with counterweights 6 also form a horseshoe-shaped magnet. Counterweights can be either constant or electromagnets. To do this, the crankshaft is equipped with coils 11, the ends of which are output to rings 12, with which the sliding contacts 13 are in contact, through which excitation voltage is applied to the coils 11.

 Generator set works as follows.

 When the excitation voltage is applied to the coils 11, magnetic poles are formed on the balances 6. In FIG. 1 counterweights 6 are located far from the supports 7 and do not excite a magnetic field in them. There is no current in coil 10. In FIG. 2 counterweights 6 are located next to the supports 7 and excite them as much as possible. In the coil 10 there is a maximum current. The casing 14 closes the coil 10 with the yoke 9 from adverse external influences.

 Magnetic lines from the poles of the rotor 6 pass through the gap to the supports 7, from which they pass to the yoke 9 through a crankcase of non-magnetic material (for example, through crankcase fastening elements).

 The use of this design allows to reduce the weight of the unit, since it becomes unnecessary to heavy generator stator housing with covers. No complicated mechanical transmission with pulleys and belt is needed, the overall dimensions of the unit are reduced.

Claims (2)

 1. GENERATOR INSTALLATION, comprising an internal combustion engine with a crankshaft having counterweights, and a generator with a stator and rotor winding, the ends of which are connected to a sliding contact device, characterized in that, in order to reduce overall dimensions, the crankshaft supports are rigidly attached to the crankcase made of non-magnetic material, and the generator stator is made in the form of a yoke with a winding closed by a safety casing and mounted on the outside of the crankcase against the crank supports shaft, the main journals of which are made of non-magnetic material, while the rotor winding is mounted on counterweights, and the contact device is placed on the crankshaft.  2. Installation according to claim 1, characterized in that the counterweights of the crankshaft are made with constant magnetization.

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