RU2215888C1 - Electric generator with liquid-piston stirling engine - Google Patents

Abstract

FIELD: heat power engineering; devices operating on Stirling cycle. SUBSTANCE: proposed electric generator with liquid-piston Stirling engine includes "Fluidyne" engine with gas space on end of outlet pipe, magnet with spring and electric coil arranged so that magnet reciprocates along its axis. Generator is provided with horizontal hollow channel in central part of which bracket is installed opposite to gas space of outlet pipe. Said bracket designed for fastening springs is connected with outlet pipe of engine by T-joint. Generator has additional magnet with spring and additional electric coil along axis of which additional magnet reciprocates. Magnets are installed in horizontal channel opposite to each other and are connected to bracket by means of springs, with gas space of engine outlet pipe located in between. EFFECT: improved reliability, provision operation of electric generator and increased efficiency. 1 dwg

Description

 The invention relates to the field of power engineering and devices operating on the Stirling cycle.

 Known technical solutions for producing induction current, including a coil of insulated wire, the ends of which are connected to a current receiver (galvanometer) and a long strip magnet, which moves along the axis of the coil induction current (Detdaf A.A., Yavorsky B. M ., Milkovskaya LB Physics course. Volume 2. "Electricity and magnetism". M.: Higher school, 1977, p.264). However, for the stable operation of the current generator, a constant reciprocating movement of the magnet along the axis of the coil is necessary.

 A device is known for the Fluidine engine, which belongs to the class of engines of the Stirling cycle, having liquid columns as working pistons and including hot and cold cavities, cold, hot and outlet pipes. The engine is based on the principle of a jet stream (G. Reader, C. Hooper. Stirling engines. M: Mir, 1986, p. 45-47).

 A device of an electric generator with a Fluidine engine is known, which includes a Fluidine engine, a magnet attached by a spring to the grid of the engine output pipe, and an electric coil along the axis of which the magnet makes a reciprocating motion (Russian patent 2133360, F 02 G 1 / 00, BI 20 from 07.20.99). However, the stability of the operation of this generator is affected by the mass inertia force of the magnet itself, which can lead to a mismatch between the oscillation frequencies of the liquid column in the outlet pipe and the magnet.

 The technical result that can be obtained by carrying out the invention is to increase the reliability of the stable operation of the electric generator and increase the efficiency in general.

 To achieve this technical result, an electric generator with a Stirling fluid-piston fluid engine, including a fluid motor having an exhaust pipe with a gas cavity, a magnet with a spring, and an electric coil arranged in such a way that the magnet rotates along its axis is equipped with a horizontal hollow channel, in the central part of which, opposite the gas cavity of the outlet pipe, a bracket is mounted for attaching springs connected to the engine outlet pipe in the form of T-arr the connection, with an additional magnet with a spring and an additional electric coil, along the axis of which the additional magnet makes a reciprocating movement, while the magnets are installed in the horizontal channel opposite each other and are attached to the bracket using springs, and between them there is a gas cavity of the engine outlet pipe .

 The introduction of a horizontal hollow channel connected to the engine output pipe, an additional magnet located in the horizontal channel opposite the other magnet, and an additional electric coil along the axis of which an additional magnet makes reciprocating motion, into the electric generator based on the Stirling Fluid fluid piston engine to obtain a new property, which consists in the conversion of the oscillatory movements of the liquid column in the output pipe of the engine into reciprocating the effective movement of two magnets at once in the horizontal channel along the axes of the electric coils, which leads to the receipt of two coils of electric current and an increase in the overall efficiency, while the mass of the magnets themselves does not affect the amplitude of their movement, which provides a more synchronous oscillation of the liquid column in the outlet pipe and magnets.

 The drawing shows an electric generator with a Stirling fluid piston engine "Fluidine".

 The electric generator includes a Fluidine engine (hereinafter simply referred to as the engine) 1, which consists of a horizontal hollow channel 5 attached to the lower part of the cold pipe 2, the hot pipe 3, and the output pipe 4. In the central part which has a bracket 6 to which magnets 9 and 10 are attached using springs 7 and 8, which reciprocate along the axis of electric coils 11 and 12 located at the ends of the horizontal channel 5. A gas cavity is located between the magnets 9 and 10 13 of the outlet pipe 4. The cold pipe 2 and the hot pipe 3 are connected in the upper part by a channel 14, which forms a cold cavity 15 and a hot cavity 16 with the pipes 2 and 3, inside which is the working medium (gas) of the engine 1. Pipes 2, 3, 4 partially filled with liquid.

 An electric generator with a Stirling fluid piston engine "Fluidine" works as follows.

 The continuous operation of the engine 1, when applying external heat to the cavity 16, is ensured by the principle of a jet stream. As a result of the engine 1, a cyclic change in the volume and pressure of the working fluid (gas) in the cavities 15, 16 and channel 14, leading to forced oscillations of the liquid columns in the cold pipe 2, hot pipe 3, output pipe 4. The increase in the liquid column in the output pipe 4 of the engine 1 leads to an increase in air pressure in the gas cavity 13, due to which there is a stretching of the springs 7 and 8 attached to the bracket 6, as well as the movement of the magnets 9 and 10 to the edges of the horizontal channel 5. Moving along the axis of the coils 11 and 12, the magnets 9 and 10, respectively Accordingly, a current is induced in electric coils 11 and 12, which can be used by various consumers (not shown). When the liquid column in the pipe 4 moves downward in the gas cavity 13, a vacuum is created with respect to the ambient pressure due to the pressure drop that has arisen, and also under the action of the springs 7 and 8, the magnets 9 and 10 move towards each other along the channel 5. This movement again induces current in coils 11 and 12. Then the cycle repeats.

Sources of information
1. Detlaf A. A., Yavorsky B. M., Milkovskaya L. B. Physics course. Volume 2. "Electricity and magnetism." M .: Higher School, 1977, p. 264.

 2. G. Reeder, C. Hooper, Stirling Engines. M., "World", 1986, pp. 45-47.

 3. Patent of Russia 2133360, F 02 G 1/00, BI 20 from 07.20.99 - prototype.

Claims (1)

 An electric generator with a Stirling fluid piston engine Fluidine, including a Fluidine engine with a gas cavity at the end of the outlet pipe, a magnet with a spring and an electric coil located so that the magnet rotates along its axis, characterized in that equipped with a horizontal hollow channel, in the central part of which, opposite the gas cavity of the outlet pipe, there is a bracket for attaching springs connected to the engine outlet pipe in the form of a T-shaped connection, a body magnet with a spring and an additional electric coil, along the axis of which the additional magnet makes a reciprocating movement, while the magnets are installed in the horizontal channel opposite each other and attached to the bracket using springs, and between them there is a gas cavity of the engine outlet pipe.