RU2605444C1 - Alternating current generator with axial-piston engine - Google Patents

Abstract

FIELD: electric engineering.

SUBSTANCE: invention relates to electrical engineering, namely to motor-generator systems, and can be used in alternating current sources designing and production. In cylinders 1 pistons 2 resting by rods 3 on guide washers 4 are installed in pairs. Latter are fixed on shaft 5 kinematically connected to other engine systems via flywheel 7. Electric windings 8 are arranged along cylinders 1 inner part edges. On rods 3 annular magnets 9 are secured facing each other by opposite poles. During movement of pistons 2 from upper dead point to lower dead point annular magnets 9 magnetic flows generate electromotive force in electrical windings 8.

EFFECT: technical result consists in improvement of reliability.

1 cl, 1 dwg

Description

The invention relates to electrical engineering, in particular to engine-generator systems, and can be used in the design and manufacture of AC sources.

A known system is an alternator-motor generator [1], in which the armature rotates in order to excite the internal combustion engine in the power windings of the starter. Often in this system, internal combustion engines are used as an engine [2]. The disadvantage of this system is the difficulty of converting using the crank mechanism of the reciprocating motion of the pistons of the engines into the rotational movement of the crankshaft connected to the generator armature.

Closest to the proposed is an electric alternator containing a cylinder of an internal combustion engine made of non-magnetic material and equipped with valves, candles and electric windings, as well as a piston in the form of a permanent magnet freely placed in the cylinder [3].

The disadvantage of this generator, adopted for the prototype, is the lack of piston seals and low wear resistance made of non-magnetic material of the cylinder, which impairs the operation of the piston and cylinder and reduces the service life of the unit.

The objective of the invention is to increase the reliability of the generator.

This task is achieved in that an electric alternator with an axial piston engine, containing cylinder-piston groups equipped with electric windings located in the rotor, the pistons of which are supported by rods on a profiled washer, while in each cylinder-piston group the pistons move towards each other, characterized in that that the electric windings are located inside each cylinder along its edges, and a number of ring magnets are fixed on the piston rods, facing each other unlike poles.

The drawing shows a longitudinal section of the proposed electric generator with an axial piston engine. The generator contains a revolving rotor with cylinders 1, in which pistons 2 are mounted in pairs, supported by rods 3 on the guide washers 4. The guide washers 4 are mounted on a shaft 5, supported by bearings 6. The shaft 5 is kinematically connected via a flywheel 7 with gas distribution, pressurization, and injection mechanisms fuel (not shown in the drawing).

The torque transmission of the shaft 5 is carried out by the movement of the rods 3 of the pistons 2 along the profiled surface of the guide washers 4. The electric windings 8 are located on the edges of the inner part of the cylinders 1. A number of ring magnets 9 are fixed to the rods 3, facing each other with opposite poles.

The generator operates as follows. When the pistons are in top dead center (TDC) (upper part of the drawing), fuel combustion starts in cylinder 1 and pistons 2 with rods 3 begin to move from each other under the action of gas pressure to bottom dead center (BDC) (lower part of the drawing). Due to this movement, the magnetic fluxes of the ring magnets 9 generate an EMF in the electrical windings 8, which is removed from the electrical connectors (not shown in the drawing). The pressure of the pistons 2 with rods 3 on the guide washer 4 rotates the shaft 5 with a flywheel 7 associated with the gas distribution mechanism. Due to this, the exhaust gases are removed from the cylinders 1 to the BDC and a fresh air charge enters them. When the pistons 2 move towards each other from the BDC to the TDC, the magnetic fluxes of the ring magnets 9 again generate EMF in the electrical windings 8. Then the cycle repeats.

During operation, the internal combustion engine can provide not only the drive of the generator, but also the drive of some mechanism or vehicle.

The proposed technical solution is intended for use in the design and manufacture of alternating electric current sources.

The use of the proposed technical solution improves the reliability of the engine-alternator system.

Literature

1. Atkins B. The general theory of electrical machines. Per. from English I.V. Antika. State Energy Publishing House. M.-L., 1960.272 s.

2. World ship diesel engineering. Design concepts, analysis of international experience: Textbook / G.A. Konks, V.A. Loshko. - M.: Mechanical Engineering, 2005.512 s.

3. Electric alternator: US Pat. No. 2046 966 Ros. Federation. No. 4801 644/06; declared 11/29/19889; publ. 10/27/1995.

Claims (1)

An electric alternator with an axial piston engine, containing piston groups equipped with electric windings located in the rotor, the pistons of which are supported by rods on a profiled washer, while in each piston cylinder group the pistons move towards each other, characterized in that the electric windings are located inside each cylinder along its edges, and on the piston rods fixed a series of ring magnets facing each other with opposite poles.

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