SU992771A1 - Unit for generating direct current and its operation method - Google Patents

Description

(54) INSTALLATION FOR GENERATING CONSTANT

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This invention relates to internal combustion engines. Installations for generating electric current are known that contain a free piston engine (SPD) with two free-moving pistons — rotors and buffer hydraulic cavities. The SPD cylinder is provided with an electric winding, in which, during the reciprocating movement of the piston-rotors and the induction of the magnetic field, permanent alternating current is induced by permanent magnets.

However, such a SPD, due to a relatively small number of cycles, has increased dimensions, and an additional electric converter is necessary for rectifying alternating current to a constant one, which degrades the specific characteristics of the installation as a whole, decreases its competitiveness with other installations of similar purpose. CURRENT AND METHOD OF HER WORK

Also known is a device for generating direct current, which contains at least two free piston excitation motors and loads, equipped with electromagnetic piston-rotors and cylinders with stators having electric windings, the work of which consists in converting the mechanical energy of synchronous back-and-forth motion i-rotor piston at. their excitation in electric current in the stator cylinders 2.

However, performing an installation with several PDAs that have similar

15 does not improve its specific characteristics and quality {regulation, since the installation still operates with a small number of cycles, and a separate converter is required to rectify the current.

Claims (1)

The purpose of the invention is to improve the specific parameters of the electrical installation, as well as improving the quality of regulation and reliability. The aim is to set the fact that the winding of the piston of the rotor of the load motor is connected to the winding of the stator cylinder of the motors of the excitation bodies and the winding of the piston of the rotor of the drive of the motor of the load motors. In this case, the excitation current is supplied from the stator cylinder of the excitation motor to the piston-rotor of the load motor, and the piston-rotor of the excitation motor is excited by a direct current supplied from the stator cylinder of the load motor. In the drawing, a diagram of an installation for generating DC current is given. The free piston engines each consist of cylinder 1 with end combustion chambers 2 on which stator winding 3 is located, piston-rotor k with excitation winding 5 and current-driving tires 6, nozzles 7 for fuel injection, suction 8 and exhaust 9 valves, and also the brush mechanisms 10. The excitation motor 11 receives power from the direct current source 12 through terminals 13f and the load motor is connected to the network via terminals 15. The installation for generating direct current operates as follows. During the course of the piston-rotor C in the engine of excitation and load T, for example to the right, air is compressed in the right half of the cylinders 1. At the end of compression, the right-hand combustion chambers 2 through the right-hand nozzles 7 consistently enter the engine 11 and the load engine 1A injects fuel, which, when burned, moves the pistons k to the left (running). When the working stroke is compressed from the air in the left part of the cylinders 1 to 8, the end of compression 9 opens the exhaust valves 9 and exhaust gases occur, then the suction valves 8 open and the right side of the cylinder 1 is purged. Compression of the air in the left part of the cylinders 1 ends in. Consistently, fuel is injected into the engine 11 and into the engine k of the load through the left-hand injectors 7 and the working stroke 14 to the right begins and everything repeats. Through the excitation terminals 13, the brush mechanism 10, the conductive busbars 6, this is delivered to the excitation windings 5 of the excitation motor 11 and the load motor 1, which generates a corresponding magnetic field of the piston-rotors C, the magnetic field of the piston The rotor k of the excitation motor 11 is obtained by passing a direct current from source 12. Therefore, this magnetic flux has a constant direction and when reciprocating the piston of the rotor on the stator 3 of the cylinder 1 is induced alternating, matched The current displaced by: the period of displacement of this piston, which is transmitted to the piston-rotor k of the engine I load. Alternating current on the piston-rotor 4 of the engine 1 load creates an alternating magnetic flux, consistent with the period of movement of its piston. The direction of movement of the piston changes, and the direction of the magnetic flux changes accordingly. Thus, on the stator 3 of the motor load 1, an already direct current is induced, supplied to the network through the terminals 15. Thus, without any additional converters, the installation is able to generate direct current using more high-speed SPDs with a greater number of cycles with more favorable specific characteristics. Accordingly, due to the lack of converters and P / a variable number of cycles, the adjustment characteristics of the installation are improved and its reliability is increased. Claim 1. An apparatus for generating direct current, comprising at least two free-piston excitation and load motors, equipped with electromagnetic pistons by mirotors and stator cylinders having electric windings, characterized in that, in order to reduce the specific weight, the piston winding the rotor of the motor load is connected to the winding of the cylinder of the excitation motor, and the winding of the piston of the motor rotor excites