EA044395B1 - METHOD FOR OBTAINING USEFUL ELECTRICAL ENERGY AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

Description

The invention relates to the field of power engineering, in particular engine building, and concerns the development of environmentally friendly, energy-saving technologies for energy generation. And it can be used, in particular, in the creation of vacuum-atmospheric power amplifiers (hereinafter referred to as VAUM), which use an external supply of atmosphere to produce mechanical work, followed by its conversion into useful electrical energy.

The invention can be used in hybrid power plants, as well as in autonomous power units of low and medium power.

It is known that an alternative to widely used internal combustion engines (ICE), with their inherent well-known disadvantages, the main one of which is the use of organic fuel for their operation and, accordingly, toxic emissions and the need for a system for their removal, are today environmentally friendly atmospheric engines operating for due to the difference in atmospheric pressure and vacuum.

A device is known that implements the technology of vacuum-atmospheric supply of non-thermal external energy, in which, to obtain mechanical work (in particular, moving a load relative to the supporting and underlying surfaces), atmospheric pressure is used as an external energy source (UA patent No. 89112, 2009 ., as well as patent EA No. 013312, 2010).

Such a device consists of a support installed on the underlying surface, a supporting platform with a supporting surface, a loading platform rigidly connected to the transported load, a vacuum working chamber with a working medium made in the form of a bellows with an elastic side surface. The chamber is rigidly connected by its upper base to the supporting surface, and by its lower base to the loading platform. The working chamber is also connected to the pumping means through the outlet valve, and to the working medium injection system through the inlet valve. In this case, a crank mechanism with a rotating shaft (hereinafter referred to as the CSM) is rigidly connected to the lower base of the working chamber.

Along with the advantages of the device described in this patent, based on modification of the circuit for injecting and pumping out the working medium, its disadvantage is the presence of a crankshaft, in which the reciprocating motion of the movable end surface of the bellows - the traction platform - is converted into rotational motion by means of the crankshaft, which rotates the generator.

The presence of a crankshaft in the section of the kinematic diagram between the drive mechanism, in this case the moving traction platform, and the generator, limits the output power and efficiency of the device. Which, in turn, does not allow full use of the main advantage of the VAUM technology, which consists in a constantly acting force, unchanged in magnitude, during the working stroke. In contrast, for example, to the principle of operation of an internal combustion engine, in which the force on the piston during the working stroke is variable.

Therefore, in certain cases in this device, a loss of almost 50% of the power on the crankshaft is possible.

There is a known method of operation of a vacuum engine and a vacuum engine, including a cylinder block with pistons, which consists in creating a vacuum in the working chamber, by connecting it with the vacuum chamber to move the piston to top dead center, and supplying gas to the working chamber to move the piston to bottom dead center (RU patent No. 2329383, 2008). The cylinder block with vacuum engine pistons form working chambers in the cylinders. The engine also contains a vacuum chamber, a crankshaft, a compressor and a camshaft with cams and tappets. Each cylinder is equipped with a spring valve, and in the body of each spring valve there is a hole so that the working chamber can communicate with the atmosphere.

Installation of a spring valve with a rod on the cylinder cover allows the working chamber to communicate with the atmosphere and allows the use of atmospheric air as a working medium to move the piston to the bottom dead center. Creating a vacuum in the working chamber of the engine using a compressor eliminates the use of any toxic gases and ensures safe operation of the engine.

However, a disadvantage of this method and the vacuum engine based on it is also the presence of a crankshaft in the section of the kinematic diagram between the drive and actuator mechanisms of this device. Which leads to an irrational loss of about 50% of power. In addition, the use of a compressor leads to a significant increase in piston diameters to ensure acceptable power in its practical use.

There are known methods (and devices that implement them) to eliminate the negative impact of the crankshaft drive associated with the power take-off for the operation of devices as a whole, based on the use of a reciprocating (linear) generator as an actuator. This ensures the direct impact of the moving elements of the working chambers (piston or bellows) of devices (thermal or vacuum-atmospheric engines) on the reciprocating working element of the linear generator.

This principle is implemented, in particular, in a reciprocating power plant, which contains a thermal piston engine (consisting of two piston groups with antiphase pistons), a linear generator with magnetic cores and a moving inductor, and a system for automatically controlling the heat content of the air-fuel mixture. The pistons of the heat engine are connected directly to the inductor rod of the linear generator (RU patent No. 2211932, 2003).

However, the device contains an additional crankshaft with a flywheel, the main purpose of which is to move the piston through the dead points during a 4-stroke thermodynamic cycle. In this case, the pistons are simultaneously connected directly to the inductor rod of the linear generator and to the connecting rod of an additional crankshaft, located on the console between the pistons and the inductor.

The purpose of the crankshaft is to strictly limit the working stroke and ensure a smooth transition of the dead points of the inductors (solenoid) in the magnetic field. However, in this kinematic diagram of the device, when the linear generator is located between the opposite working chambers, placement of the crankshaft is structurally possible only on the side console relative to the main power axis of the kinematic chain of the device. This significantly complicates the design, sharply reduces the service life due to vibrations, and does not make it possible to use additional power-loaded devices in conjunction with the crankshaft of the crankshaft.

The proposed kinematic diagram of the device significantly complicates the practical application of this method of passing dead spots and produces additional power take-off for the operation of the device as a whole. Which, in turn, eliminates the main advantage of the linear generator. And it reduces the efficiency of the device as a whole.

Additional methods are known to increase the efficiency of converters of input energy into useful work, involving the creation in devices (thermal or vacuum-atmospheric engines) of power pairs of working chambers with a variable volume (piston or bellows). In this case, the additional chamber is positioned opposite the first, connecting their moving elements to each other with a rigid rod or through connecting rods connected to a single eccentric axis of the crankshaft.

The presence of power pairs of working chambers in the device allows for increased (double) work to be performed during one single-cycle cycle.

Thus, a power plant is known, the operation of which is based on the principle of converting the mechanical energy of a heat engine into electrical energy (RU patent No. 2213236, 2003). The working mechanism of the device consists of several power pairs of opposed working chambers with variable volumes, made in the form of bellows. The movable ends of the chambers are rigidly connected to each other by rods united by a movable durable frame. Inside the frame, between the opposed chambers, there is a linear generator with a stationary stator and a rotor, kinematically connected through a rigid rod to the engine drive link.

However, in this device the working chambers are made in the form of thin-walled bellows. Bellows operate under high-frequency temperature and pressure changes. This sharply limits the service life of the device and requires constant replacement of the bellows.

The closest to the claimed is a method of obtaining useful electrical energy, including the use of moving parts of an energy converter (actuator) of a vacuum-atmospheric engine (VAE) as a drive motor.

In this case, the VAD contains at least one pair of coaxial, located opposite to each other, vacuum working chambers with a variable volume, into which atmosphere is cyclically injected and pumped out so that the atmosphere is injected into one of the chambers simultaneously with its pumping out from the second chamber.

Both working chambers can be rigidly connected to each other into a single power pair by a common rod/rod, which, in turn, is rigidly connected to the moving element of the actuator, in particular, a linear generator (UA patent No. 102562, 2013, as well as a patent EA No. 021678, 2015).

Otherwise, both working chambers can be connected to each other into a single power pair through connecting rods mounted on one eccentric axis of the crankshaft, which is located between them (UA patent No. 89894, 2010).

Both devices described in these patents have all the advantages of VAUM technology (in particular, efficiency, environmental friendliness, etc.), as well as the advantages of using power pairs of working chambers. As mentioned above, the presence of power pairs of working chambers with the possibility of their simultaneous synchronous movement in both directions ensures a constant action of double force on the moving element of the actuator during the push-pull cycle. This makes it possible to perform increased work in a two-stroke cycle mode, in which each stroke is a working stroke.

However, each of these devices has disadvantages. As mentioned above, the presence of a crankshaft drive in the device (according to patent No. 89894) in the section of the kinematic diagram between the drive motor and the actuator limits the output power and efficiency of the device as a whole. In addition, the layout of this device determines the presence of two vacuum pumps and receivers, which complicates the device.

Negative influence of the crankshaft, located in the section of the kinematic diagram between the drive

- 2 044395 motor and actuator, on the efficiency of the device, is excluded in the circuit described in patent No. 102S62. However, this kinematic diagram includes the location of a common movable rod of the working chambers of the actuator in the cavity of one of them, ensuring a sliding vacuum seal of the rod. The difficulty of providing sliding vacuum seals, as well as the need to use two vacuum pumps in such a device, significantly complicates the design, reduces its reliability and shortens the service life of the device as a whole.

A common drawback of both devices, close to the claimed one, is the presence of a crankshaft, the purpose of which is to strictly limit the working stroke and ensure a smooth transition of the dead points of the inductors (solenoid) in the magnetic field. At the same time, the crankshaft of the crankshaft and the linear generator are located between the opposed working chambers, which predetermines a loss of up to 50% of the device’s power.

The purpose of the claimed invention is to implement VAUM technology with direct conversion of atmospheric potential energy into useful electrical energy, with the possibility of additional compensation for short-term peak changes in power take-off under variable loads in devices created using this method. And as a consequence - an increase in the efficiency of such devices, while simultaneously increasing the reliability of their operation, productivity and efficiency.

This goal is achieved by the fact that the method of obtaining useful electrical energy includes the use of atmospheric pressure to ensure reciprocating movement of the movable working element of a linear electric energy generator, kinematically connected simultaneously with the movable elements of two coaxial vacuum working chambers with a variable volume, into which they are cyclically injected and the atmosphere is pumped out so that the atmosphere is injected into one of the chambers simultaneously with its pumping out from the second chamber.

What is new in the method is that, along with this, additional power is transferred to the linear generator from the inertial energy storage device, simultaneously acting on the moving elements of both vacuum working chambers with variable volume, through a crank mechanism, through an additional kinematic link, ensuring the coaxiality of all elements layout diagram.

In this case, the crank length l of the crank mechanism is selected from the ratio l = L/2, where L is the stroke length of the movable working element of the linear generator. And the cross-sectional area of the working element of the linear generator and the effective area of the moving element of each vacuum working chamber are chosen equal to each other.

This goal is also achieved by the fact that the device for obtaining useful electrical energy contains a working mechanism consisting of two coaxial vacuum working chambers with variable volumes, the side and end surfaces of which are made movable, with the possibility of reciprocating movement under the influence of atmospheric pressure, connected through inlet and outlet valves with systems for inlet and vacuum pumping of the working medium. And also, an actuator containing a reciprocating working element of a linear generator.

What is new in the device is that the device additionally contains an inertial energy storage device with a crank mechanism, and the working mechanism additionally includes a stationary support surface with an internal cavity, to the opposite outer sides of which the bases of vacuum working chambers with variable volumes are rigidly connected. And the movable end surfaces of the chambers are made in the form of traction platforms, rigidly connected to each other by additional rods into a single power pair.

In this case, one of the traction platforms is rigidly connected by a rod to a movable working element of the actuator, located on the same axis with the movable elements of both coaxial vacuum working chambers.

And the traction platform opposite to it is rigidly connected by an additional rod to the crankshaft of the inertial energy storage device, while the crankshaft of the crankshaft is located on the same axis with the moving elements of both coaxial vacuum working chambers.

In this case, the inlet and outlet valves are made in the bases of the working chambers, and the inlet and pumping channels of the working medium are made in the cavity of the stationary supporting surface of the device.

The side surfaces of both vacuum working chambers with variable volumes can be made in the form of bellows with movable closed ends placed opposite to the supporting surface, acting as traction platforms.

Each vacuum working chamber with a variable volume can also be made in the form of a cylinder-piston group with a fixed piston and a movable hollow cylinder with one closed end that acts as a traction platform, which is hermetically attached to the piston with the possibility of sliding reciprocating movement relative to it. In this case, the pistons are rigidly fixed on opposite sides of the fixed supporting surface, and the intake and exhaust valves are made at the bases of the pistons.

- 3 044395

The actuator of the device can be made in the form of an inductance coil (solenoid) moving in a magnetic field, the cross-sectional area S _k of which is equal to S _k = Sp ± ΔS _p , where _Sp is the effective area of the movable traction platform, and its volume V _k is equal to V _k = V _p ± ΔV _P , where V _p is the maximum volume of the vacuum working chamber.

The actuator of the device can also be made in the form of permanent magnets that perform reciprocating motion in a stationary inductor coil, the cross-sectional area of which is equal to the effective area of each movable traction platform, and its internal volume is equal to the maximum volume of each vacuum working chamber.

The inductor coil, in this case, can consist of a set of individual coils located on the magnetic circuit, the total total internal volume of which is equal to the maximum volume of each vacuum working chamber.

Thus, in the claimed method of obtaining useful electrical energy using VAUM technology, there is a fundamentally different physical mechanism for using a crankshaft, in which it is derived from the kinematic diagram between the drive mechanism, in this case a moving traction platform, and a linear generator, and is included in the kinematic diagram between the inertial accumulator and the opposite traction platform of the drive mechanism, on the same axis of the entire kinematic diagram.

In the proposed method, the crankshaft is removed from the kinematics of power generation to the load, where it plays a negative role, and is introduced into the kinematics between the generator and the inertial storage mechanism, where the crankshaft begins to play a positive role to increase the efficiency of the device that uses VAUM technology to 80-85% .

First of all, it strictly limits the working stroke and ensures a smooth transition of the dead points of the inductor coils (solenoid) in the magnetic field, but does not participate in the transfer of force to the resistance of the movement of the coils and does not reduce the power output of the coils to the load.

In addition, it transfers additional power from the inertial accumulator to the linear generator, providing additional mechanical force and automatic compensation of peak maximum energy consumption of inductive loads, such as starting currents of electric motors.

In order to obtain positive mechanical operation of a device for a long time, which uses a method for generating useful electrical energy using VAUM technology, it is necessary to ensure the cyclic movement of the traction platforms relative to the support.

For example, a traction platform with an area S _eff = 1 m ² , when passing a distance l = 1 m under the influence of the force Fa of atmospheric pressure _Ra (hereinafter referred to as SAP) of the atmospheric air column, which presses on the effective area of the outer side of the traction platform, will produce work

A = F _a 1= 101 kN x \m = 101 [kJ] (1) and can provide 101 kW of useful power per second:

N=FJ/t = P _a S^l/l =101 [kW] (2)

It is obvious that based on formulas (1) and (2), the power is determined by the pumping speed of a vacuum cavity with a maximum volume ~

To return the platform to its original position, it is necessary to naturally fill the vacuum cavity with atmospheric air to compensate for the effect of the SAD on the outside of the platform. Thus, the system can operate as a push-pull vacuum-atmospheric mechanical power unit with a given adjustable frequency and a vacuum-atmospheric closed pumping-inlet cycle.

The rigid connection of this push-pull vacuum-atmospheric mechanical power unit with a linear generator, in which the inductor coil reciprocates in a closed loop in a magnetic field, provides direct conversion of the mechanical work produced by the traction platform into electrical energy generated by the inductor in the magnetic field.

Thus, the inventive method of obtaining useful electrical energy using VAUM technology provides direct conversion of the potential energy of the atmosphere into useful electrical energy, which is carried out using the inventive device.

Taking into account formulas (1) and (2), with P _a =const, the power of such a generating device is 100 W with a maximum working chamber volume of one liter. And if the vacuum-atmospheric cycle, with the parameters specified in the example, occurs with a frequency of 10 Hz (600 rpm), then through the working chamber it is possible to provide 1 MW of power for mechanical work using the potential energy of the atmosphere.

In the case of a standard conversion of the translational motion of the platform into rotation of the crankshaft using a crankshaft, when converting the translational motion of the platform into rotation of the crankshaft, the torque, taking into account formula (1), will be equal to = [Nm] (3)

- 4 044395 and the power of this device using a crankshaft is equal to

N = nP _a S^r [W] (4) where n is the number of revolutions of the power shaft;

Ra - atmospheric pressure, Pa;

S _eff - effective area of the outer surface of the platform, m ² ;

r is the radius of the force application point, m.

This formula determines the main parameters of a power implosion power plant operating on a vacuum-atmospheric cycle, with the conversion of the reciprocating motion of the platform into rotation of the crankshaft, in which, as an external source of non-thermal energy, the potential energy of the external environment - the atmosphere - is used.

For example, at normal atmospheric pressure P _a = 1.013-10 ⁵ Pa, the torque for the case under consideration is equal to

1^=1.013^10^//2 = 50650 [Nm] (5) and the output power at n=10 will be equal to

1.013^0^5^ = 506 [kW] (6)

In this case, the output power is two times less than what the mechanical unit of the power plant can produce. According to formula (2), at a frequency of 10 Hz, the power that the device can generate will be 1 MW, but the output power at the output power shaft, according to formula (6) is 0.5 MW.

The force Fa does not change in magnitude during the power stroke and, in the presence of two oppositely located working chambers, rigidly connected into a power couple of the mechanical unit, will be constant during the entire two-stroke cycle, because every move is a working move. Thus, the absence of a crankshaft will eliminate power losses of up to 50%.

The potential energy of the atmosphere in a gravitational field, which is used by creating a vacuum cavity in the form of a working chamber with variable volume and a movable traction platform, is expressed by the formula

W _pK = P^ = P^ (7) where l is the length (m) of the platform stroke when the volume of the working chamber is reduced from maximum to minimum, which determines its working volume Vpk m ³ ;

S _eff - cross-sectional area (m ² ) of the traction platform.

It is known that the energy of the magnetic field of the solenoid is equal to

W _c =μμ ₀ H ² S _c U2 = BHV _c /2 (8) where

Sc is the cross-sectional area of the solenoid, m ² ;

L - solenoid length, m;

V _c - solenoid volume, m ³ ;

N - magnetic field strength, A/m;

B - magnetic induction, T;

μ ₀ - magnetic permeability.

From the above formulas (7) and (8), it is obvious that the energy obtained using the working chamber is directly proportional to its volume and atmospheric pressure, and the energy of the solenoid is directly proportional to its volume, magnetic induction and the strength of the magnetic field in which it is located.

In general, if the working chamber is located in another medium, for example in water, then it is necessary to take into account the density of the medium p located in the gravitational field, which in this case is a complete analogy to the magnetic permeability μ ₀ .

The rigid connection of the movable end surface of the traction platform with the solenoid located in the magnetic field leads to the fact that they move under the constant action of the SAD at the same speed along the reciprocating vacuum-atmospheric cycle. In this case, the work produced by the traction platform will be converted in the solenoid into the work of the Lorentz force, which will generate an induced emf proportional to the work produced by the traction platform.

The solenoid moves due to a constantly acting, constant-value SBP, which is directly proportional to the effective area of the traction platform.

And the Ampere force Famp, which creates resistance (magnetic braking) to the movement of the solenoid, is directly proportional to the current strength that is generated by the solenoid to work on the load, and also directly proportional to the cross-sectional area of the solenoid. Thus, it is the equality of the effective area of the traction platform S _eff and the cross-sectional area of the solenoid Sc that makes it possible to obtain the maximum efficiency of the device.

If the area S _eff is greater than the cross-sectional area of the solenoid Sc, then the force F _k will be greater than the force Famp, and in this case more energy will be spent on pumping the working chamber than the solenoid can generate.

If the cross section of the solenoid is larger than the effective area S _eff , then it will be impossible to obtain the maximum current for which the solenoid parameters are designed.

It is obvious that, based on formulas (2) and (7), the volume of the working cavity V _k and the volume of the solenoid Vc must also be equal for optimal generation of electrical energy.

Thus, in the claimed method of obtaining useful electrical energy and in the device for its implementation, the following relationships must be observed:

$* = $ _с ±Д$с (9) ^=Г _С ±ДГ _С (10)

The proposed technical solution of the device makes it possible to realize all the above advantages of the claimed method.

The main feature of the design is the arrangement of coaxial opposed working chambers, when their working moving elements are not located towards each other, but are turned in opposite directions relative to the fixed supporting surface. In contrast to internal combustion engine devices and the circuits of the analogues described above, including the closest ones.

In this case, the rigid connection of the moving elements, made in the form of traction platforms, with each other by additional rods located outside the opposite working chambers allows them to move simultaneously in the same direction. Forming at the same time a single rigid power block, ensuring a constant and unchanged in magnitude action of the force of atmospheric pressure on the moving element of the linear generator during its reciprocating motion.

The proposed design of the device also makes it possible to place on the same axis with the traction platforms of the opposed working chambers both a linear generator and an inertial energy storage device, spaced apart from the power unit.

The declared technical solution of the device, which ensures the alignment of all elements of its layout, determines very high strength and rigidity of the entire structure and, as a consequence, the reliability of its operation.

Unlike the analogues described above, in the designs of which linear generators are located between opposed working chambers, which reduces the strength of the entire structure as a whole, and, as a consequence, the reliability of its operation, and also limits the possibility of using additional devices.

The rigid connection of the traction platforms of the working chambers allows the power couple to operate in a single-stroke vacuum-atmospheric cycle mode, in which each stroke of the power couple is a working stroke, in contrast, for example, to the classical two and four-stroke cycles of internal combustion engines, in which the pistons are connected by a driveshaft, and move in an opposite pair towards each other.

In this case, any movement of the power pair in both directions is working, respectively, each stroke of the inductor in the magnetic field of the linear generator is also working, which allows you to obtain a stable voltage at the output of the device in the form of a sinusoid without loss of power at idle.

Connecting an inertial energy storage device to the opposite end of the rod of a linear generator by means of a crankshaft makes it possible to strictly limit the working stroke and ensure a smooth transition of dead points by the inductor coils in the magnetic field, without reducing the power output of the coils to the load.

In addition, the KShM ensures the transfer of additional power from the inertial storage device to the linear generator if it is necessary to compensate for peak maximum energy consumption by an inductive load, as well as increase the efficiency of the device to 80-85%.

The claimed method of forming a power pair with an inertial energy storage device ensures a uniform power load of the bellows in the device when converting it into the useful work of the inductor, which contributes to the reliability and increase in the service life of its operation.

Thus, the set of features of the claimed invention is necessary and sufficient to achieve the stated goal.

The drawing shows a diagram of the inventive device for the case when the device contains one power pair, consisting of two bellows 1, 2;

the movable ends of the bellows - traction platforms 3 and 4, as well as the vacuum cavities of the bellows are in the middle position of the working stroke/idle stroke;

arrows indicate the direction of movement of the working medium through the cavity of the supporting surface/power couple;

the system for pumping out/injecting the working medium (atmospheric air) is not shown;

R - radius/length of the crankshaft; 2R is the length of the solenoid/moving element of the linear generator.

Bellows 1, 2 contain inlet valves, respectively 5 and 6, of the working medium (atmospheric air), and valves, respectively 7 and 8, of the vacuum pumping system. Traction platforms 3 and 4 - movable

Claims (2)

The ends of the bellows are rigidly connected by rods 9 and move synchronously in both directions. The fixed ends of the bellows are rigidly fixed to the supporting surface 10 of the device body. The right traction platform 4 is rigidly connected to a linear generator by means of a rod 11, on which there are inductors 12 located in a magnetic field created by permanent magnets (not shown in the drawing). The left traction platform 3 is rigidly connected to the inertial energy storage 13 via a rod 14. All three nodes of the device layout are rigidly fixed to the base plate 15. The vacuum pumping system contains a standard set of elements that ensures the operation of the VAUM technology, including in a closed loop without venting to the atmosphere, and is therefore not shown in the drawing. The device works as follows. In the initial position (the drawing shows the kinematic diagram of the device in the middle operating/idling position), the inlet valve 6 of the left bellows is open, and the pumping valve 8 is closed. In this case, the vacuum cavity of the left bellows is filled with a compensating working medium under atmospheric pressure and the SAD does not exert pressure on its traction platform 3, i.e. The left bellows is idling. At this time, the inlet valve 5 of the right bellows is closed, and the pumping valve 7 is open, while the vacuum cavity of the right bellows is pumped out to pressure P ₀ and the SAD acts on its traction platform 4, compressing the bellows and simultaneously moving the inductor to the left, i.e. the right bellows carries out the working stroke. Since the movable traction platforms are rigidly connected by rods 9, the left traction platform also moves to the left and transmits the force of the SAM via a CMM to the inertial energy storage device 13. When passing the left dead center in the left bellows, the inlet valve 6 closes and the pump-out valve 8 opens. In this case, the left bellows performs a working stroke, simultaneously moving the inductor to the right, and the right bellows performs an idle stroke. When passing the right dead center, the valves switch synchronously again and the reciprocating cycle repeats. Thus, the device operates in a closed vacuum-atmospheric cycle, in which each stroke is a working stroke. Providing the possibility of quickly changing the pressure in the working chamber allows us to obtain a continuous cyclic process of movement of traction platforms, which are rigidly connected by rods and represent a single structure - a power couple that performs work in a single-cycle vacuum-atmospheric cycle. In this case, the SBP acting on the traction platforms is constant in magnitude along the entire length of the working stroke and is determined only by the area of the end surface of the bellows and the difference in external and internal pressures in the bellows. During initial startup, the device should operate at idle until the inertial accumulator accumulates the necessary kinetic energy to mechanically smooth out possible braking of the linear generator system when connecting peak loads. The use of this device, which implements the claimed method of obtaining useful electrical energy, will make it possible to create economical vacuum-atmospheric generators of clean electricity with an efficiency of up to 85%. As well as powerful engines with low fuel consumption, which will provide significant fuel savings for combined autonomous gasoline and diesel power plants with the same output power. The closed circuit of movement of the working fluid in the inventive device eliminates emissions into the atmosphere, which ensures its environmentally friendly operation. CLAIM 1. A method for obtaining useful electrical energy, including the use of atmospheric pressure to ensure reciprocating movement of the movable working element of a linear electric energy generator, kinematically connected simultaneously with the movable elements of two coaxial vacuum working chambers with variable volumes, into which the atmosphere is cyclically injected and pumped out so , that the infusion of atmosphere into one of the chambers is carried out simultaneously with its pumping out from the second chamber, characterized in that, along with this, additional power is transferred to the linear generator from the inertial energy storage device, simultaneously acting on the moving elements of both vacuum working chambers with variable volumes, by means of a crank - connecting rod mechanism, through an additional kinematic link, ensuring the alignment of all elements of the layout diagram. 2. The method according to claim 1, characterized in that the length of the crank/crank mechanism is selected from the ratio l = L/2, where L is the stroke length of the movable working element of the linear generator, -