Linear generator: device, principle of operation, pros and cons

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Linear generator: device, principle of operation, pros and cons
Linear generator: device, principle of operation, pros and cons

Video: Linear generator: device, principle of operation, pros and cons

Video: Linear generator: device, principle of operation, pros and cons
Video: Mainspring Linear Generator 2024, November
Anonim

Traditional internal combustion engines are distinguished by the fact that pistons act as the initial link, which perform coordinated reciprocating movements. After the invention of crank units, specialists were able to achieve torque. In some modern models, both links perform the same type of movement. This option is considered the most practical.

For example, in a linear generator, there is no need to act on reciprocating actions, while extracting a rectilinear component. The use of modern technologies has made it possible to adapt the output voltage of the unit for the user, due to this, a part of a closed electrical circuit does not make rotational movements in a magnetic field, but only translational.

linear generator with working cylinder bushings
linear generator with working cylinder bushings

Description

A linear generator is often referred to as a permanent magnet product. The unit is designed to efficiently convert the mechanical energy of a diesel engine into an output electric current. For completing this taskare permanent magnets. A high-quality generator can be made on the basis of different geometric schemes. For example, the starter and rotor can be made in the form of coaxial discs that rotate relative to each other.

Experts call such linear generators disk or simply axial. The scheme used in production allows you to create high-quality units of compact dimensions with the most dense layout. Such a product can be safely installed in a limited space. The most popular are cylindrical and radial generators. In such products, the starter and rotor are made in the form of coaxial cylinders nested in each other.

Quality Generator
Quality Generator

Characteristic

The linear generator belongs to the field of power engineering, as its skillful use can improve fuel efficiency and minimize emissions of toxic gases in common free-piston internal combustion engines. In a self-contained product, in which electricity is converted by coupling between a permanent magnet and a fixed winding, the cylinders paired with the pistons have a characteristic conical prechamber. The generator functions with modified compression strokes. The winding and the search magnet are designed so that the resulting ratio between the amounts of mechanical energy used to produce electricity is equal to that available between the compression ratios.

Design

The search magnet in classical generators differs in the principle of structure, since manufacturers completelyrubbing parts such as collector brushes and commutators have been eliminated. The absence of such mechanisms increases the degree of reliability of the diesel power plant. The end user does not have to spend large sums on equipment maintenance. The design of the permanent magnet diesel fuel linear generator allows experts to reliably provide valuable electricity to various laboratories, residential buildings, as well as small industrial facilities.

The high degree of reliability, availability and easy start-up make these units indispensable when you need to provide a backup power source. The negative side of linear generators can be attributed to the fact that the most reliable design does not allow you to get a high output voltage. If you need to provide power to powerful equipment, then the user will have to use multi-band models, the cost of which is much higher than the basic installations.

Universal product
Universal product

Linear chains

This is a separate category of parts that is in great demand among professionals. In accordance with Ohm's law, the current in linear electrical circuits is proportional to the applied voltage. The resistance level is constant and absolutely independent of the voltage applied to it. If the I–V characteristic of an electrical element is a straight line, then such an element is called linear. It is worth noting that in real conditions it is difficult to achieve high performance, since the user needs to create optimal conditions.

For classical electrical elements, linearity is conditional. For example, the resistance of a resistor depends on temperature, humidity, and other parameters. In hot weather, the performance increases significantly, due to which the mechanism loses its linearity.

Cross section of the inner compartment
Cross section of the inner compartment

Benefits

Universal permanent magnet linear generator compares favorably with all modern analogues by numerous positive characteristics:

  1. Light weight and compact. This effect is achieved due to the absence of a crank mechanism.
  2. Affordable price.
  3. Quality MTBF due to lack of combustion system.
  4. Manufacturability. Only labor-intensive operations are used to produce durable parts.
  5. Adjusting the volume of the combustion chamber without stopping the engine.
  6. The base load current of the generator does not affect the magnetic field, which does not entail a decrease in equipment performance.
  7. Missing ignition system.
Powerful industrial generator
Powerful industrial generator

Flaws

Despite its many positive characteristics, a multifunction generator with quality slave cylinder bushings has some negative characteristics. Negative feedback from the owners is associated with the difficulty of obtaining the output voltage in the form of a sinusoid. But even this shortcoming can be easily eliminated if universal electronic and converting equipment is used. For beginnersyou need to be prepared for the fact that the unit is equipped with several internal combustion cylinders. The classic adjustment of the volume of the fuel chamber is carried out according to the same principle as in the dough piece.

Diesel units

Every man can make a linear generator with his own hands, which will have optimal performance. The main thing is to follow the basic recommendations and prepare all the necessary tools in advance. A diesel linear generator is useful if the user has to independently make changes to the existing electrical network. The unit will help to significantly simplify the implementation of professional and domestic tasks. Every product needs periodic maintenance. Any master will cope with such manipulations if he knows the principle of the mechanism.

Classic linear generator circuit
Classic linear generator circuit

Restrictions

Affordable and reliable linear generator is becoming more and more popular. As a source of energy, this unit can be used both in the domestic and industrial sectors. But every user should be aware of some limitations. During operation, the cams of the valve drives are erased, as a result of which the mechanism does not open, due to which the power drops to critical levels.

Due to frequent use, the edges of the hot valve quickly burn out. The device contains liners - plain bearings, which are located on the crankshaft neck. Over time, these products are also erased. As a resulta free space is created through which the filled oil begins to pass.

Versatile product with excellent performance
Versatile product with excellent performance

Fuel pump

The drive of this unit is presented in the form of a cam surface, which is firmly clamped between the piston roller and the housing itself. The mechanism performs reciprocating movements together with the connecting rod of the internal combustion engine. If the master plans to change the amount of fuel ejected in one cycle, then he must carefully rotate the cam surface with respect to the longitudinal axis. In this situation, the rollers of the pump piston and housing will move or move apart (it all depends on the direction of rotation). The resulting voltage and electricity generated during various cycles cannot be categorized as automatically proportional changes in mechanical energy.

This approach involves the use of large batteries, which are most often installed between the internal combustion part and electric motors. The use of a linear generator allows you to maintain a favorable ecological environment. The experts managed to minimize the formation of toxic compounds during the operation of the unit, which is highly valued in modern society.

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