CN109519275A - A kind of gasoline engine generator - Google Patents
A kind of gasoline engine generator Download PDFInfo
- Publication number
- CN109519275A CN109519275A CN201710843834.2A CN201710843834A CN109519275A CN 109519275 A CN109519275 A CN 109519275A CN 201710843834 A CN201710843834 A CN 201710843834A CN 109519275 A CN109519275 A CN 109519275A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- gasoline engine
- engine generator
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention provides a kind of gasoline engine generators, including stator, rotor, end cap and bearing；Stator is by stator core, line winding, base and fixes the other structures parts of these parts and forms；Rotor is made of rotor core winding, retaining ring, center ring, slip ring, fan and shaft；By bearing and end cap by the stator of generator, rotor is assembled, and rotor is enable to rotate in the stator, does the movement of cutting magnetic line.The present invention is fuel-efficient, and excellent efficiency of combustion generates high economic benefit.Low-noise generator group that is quiet, no matter when can anywhere using.Reliably, stable automatic voltage regulating system and machine oil warning system, make us safe to use.
Description
Technical field
The present invention relates to machinery equipment field, and in particular to a kind of gasoline engine generator.
Background technique
Generator refers to the mechanical equipment by the energy conversion of other forms at electric energy, it is by the hydraulic turbine, steam turbine, diesel oil
The energy that water flow, air-flow, fuel combustion or nuclear fission generate is converted mechanical energy biography by machine or the driving of other dynamic power machines
Electric energy is converted to generator, then by generator.
Generator has been widely used in industrial and agricultural production, national defence, science and technology and daily life.The form of generator is very
It is more, but its working principle is all based on the law of electromagnetic induction and law of electromagnetic force.Therefore, the rule constructed is: with suitably
Magnetic conduction and conductive material constitute mutually carry out electromagnetic induction magnetic circuit and circuit, to generate electromagnetic power, reach energy conversion
Purpose.
The operating of gasoline machine driving generator, converts electric energy for the energy of gasoline.In gasoline engine cylinder, mixed gas is acute
Strong burning, rapid spatial expansion push the work done of piston downlink.
Gasoline engine generator noise in the prior art is big, and structure is unreliable.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of gasoline engine generator.
Technical solution:
A kind of gasoline engine generator, including stator, rotor, end cap and bearing；Stator by stator core, line winding, base and
Fix the other structures part composition of these parts；Rotor is by rotor core winding, retaining ring, center ring, slip ring, fan and shaft group
At；By bearing and end cap by the stator of generator, rotor is assembled, and rotor is enable to rotate in the stator, does cutting magnetic
The movement of the line of force.
Microperforated panel complex muffler is installed on the gasoline engine generator.
The number of plies of the silencer requires to determine according to specific eliminate the noise.
When the number of plies of the silencer is multilayer, depending on cavity thickness apparent absorption frequency band；When 125~250Hz of low frequency, cavity
With a thickness of 150~220mm；When intermediate frequency is 500~1000Hz, cavity is 80~120mm；It is empty when high frequency is 2000~4000Hz
Chamber is 30~50mm.
The microperforated panel complex muffler is to be processed into 0.5~1mm of aperture using the sheet metal of 0.5~1mm, is perforated
Double-layer structure of the rate 1%~3%.
The section of the bilayer microperforated panel pipe silencer is circular ring shape.
The utility model has the advantages that
Fuel-efficient: excellent efficiency of combustion generates high economic benefit.
It is quiet: the low-noise generator group that no matter when can anywhere use.
Reliable: stable automatic voltage regulating system and machine oil warning system makes us safe to use.
Specific embodiment
The present invention will be further explained below.
Gasoline engine generator of the invention includes that the components such as stator, rotor, end cap and bearing are constituted.Stator by stator core,
Line winding, base and the other structures part composition for fixing these parts.Rotor by rotor core (or magnetic pole, magnetic are gripped) around
The components such as group, retaining ring, center ring, slip ring, fan and shaft composition.By bearing and end cap by the stator of generator, rotor is connected
It assembles, rotor is enable to rotate in the stator, do the movement of cutting magnetic line, to generate induced potential, pass through terminals
Son is drawn, and is connect in the loop, is just produced electric current.
Gas-liquid-liquid three-phase flow noise is in wide frequency-band spectrum characteristic, and requires silencing equipment that can resist very high air velocity simultaneously
High temperature resistant, high pressure, and not afraid of water and moist, when the temperature increases, the performance change of silencer is little, according to such case,
Microperforated panel complex muffler is mostly used in improvement.0.5~1mm of aperture, punching rate are processed into the sheet metal of 0.5~1mm
In the microperforated panel silencer of 1%~3% double-layer structure, centering, high-frequency noise have preferable assimilation effect.It is empty when multilayer
Depending on chamber thickness apparent absorption frequency band, when 125~250Hz of low frequency, cavity thickness is 150~220mm, and intermediate frequency is 500~1000Hz
When, cavity is 80~120mm.When high frequency is 2000~4000Hz, cavity is 30~50mm, to prevent edge in microperforated panel cavity
The propagation of pipe range direction sound wave, to the silencer for needing higher sound deadening capacity, every 0.5m long plus a transverse baffle.The double-deck micropunch
The section of band-tube type silencer is circular ring shape.
Workflow of the invention is as follows:
One working cycles includes that (so-called piston stroke just refers to piston by top dead centre to lower dead center there are four piston stroke
Distance process): suction stroke, compression travel, expansion stroke (expansion space stroke) and instroke.
Suction stroke: in this process, the IO Intake Valve Opens of engine, exhaust valve closing.As piston is from top dead centre
Mobile to lower dead center, the volume of cylinder above piston increases, to make the pressure in cylinder that will arrive atmospheric pressure hereinafter, i.e. in gas
Pull of vacuum is caused in cylinder, such air is just inhaled into cylinder via admission line and inlet valve, while atomizer sprays atomization
Gasoline mix well with air.When air inlet ends, the gas pressure in cylinder is about 0.075-0.09MPa.And gas at this time
The temperature of combustion mixture in cylinder has been raised to 370-400K.
Compression travel: to enable the combustion mixture for sucking cylinder to burn rapidly, to generate biggish pressure, to make to send out
Motivation issues relatively high power, it is necessary to and combustion mixture is compressed before burning, increases its smaller volume, increase in density, temperature,
Need compression process.In this process, inlet and outlet door is all closed, and crankshaft pushes piston from lower dead center to top dead centre
A mobile stroke, i.e. compression travel.Mixture pressure will increase 0.6-1.2MPa at this time, and temperature is up to 600-700K.
There is a critically important concept in this stroke, is exactly compression ratio.So-called compression ratio exactly compresses gas in front air cylinder
The ratio between the maximum volume of body and compressed minimum volume.General compression ratio is bigger, compress end when gaseous mixture pressure and
Temperature is just higher, and burning velocity is also faster, thus the power that engine issues is bigger, and economy is better.The compression of general car
Than between 8-10, but the Polo of newest listing now has just reached 10.5 high compression ratio, therefore its torque shows phase
To good.But compression ratio it is excessive when, not only cannot further improve combustion case, will appear deflagration and surface ignition etc. instead
Malcombustion phenomenon.
Deflagration is since gas pressure and temperature are excessively high, in the combustion chamber from the flammable mixing in the end of the center of lighting remotely
Gas spontaneous combustion and caused by a kind of malcombustion.Flame is propagated outward when deflagration with high rate, or even is had little time in gas
In the case where expansion, temperature and pressure is sharply increased, and is formed pressure wave, is pushed ahead with the velocity of sound.It is fired when this pressure wave is hit
Burning locular wall is to issue sharp engine knock sound.Meanwhile can also cause engine overheat, and power decline, fuel consumption increase etc.
A series of adverse consequences.Serious deflagration is or even will cause the parts such as valve is burnt, bearing shell rupture, spark plug insulator are breakdown
Damage phenomenon.
In addition to deflagration, the engine for crossing high compression ratio is also possible to face another problem: surface ignition.This is because cylinder
The another kind that gaseous mixture generation is lighted at interior hot surface and red-hot place (such as exhaust valve head, sparking-plug electrode, at carbon deposit) is abnormal
It burns (also referred to as incandescent ignition or pre-ignition).When surface ignition occurs, also with strong engine knock sound (more dull), the height of generation
Pressure can be such that engine load increases, and reduce the service life.
Expansion stroke: in this process, inlet and outlet door remains off.When the piston is near the top dead centre, spark plug issues
Electric spark lights compressed combustion mixture.After combustion mixture is burned, a large amount of thermal energy is released, the pressure of combustion gas at this time
Power and temperature increase sharply.For its attainable maximum pressure of institute up to 3-5MPa, corresponding temperature is then up to 2200-2800K.It is high
The combustion gas of warm high pressure pushes piston to be moved from top dead centre to lower dead center, makes crank rotation and output mechanical energy by connecting rod, in addition to
Engine itself is maintained to remain in operation outer, remaining is used to externally do work.In the motion process of piston, cylinder internal volume increases
Add, gas pressure and temperature all decline rapidly, and when this trip is ended, pressure is down to 0.3-0.5MPa, and temperature is then 1300-
1600K。
Instroke: when expansion stroke (expansion space stroke) is close to when ending, exhauxt valve opens, the pressure by exhaust gas is carried out certainly
By being vented, when piston reaches mobile to top dead centre again after bottom dead center, exhaust gas pressure is discharged in atmosphere, here it is instrokes.
In this trip, inner pressure of air cylinder is slightly higher than atmospheric pressure, about 0.105-0.115MPa.When piston reaches near top dead center
When, instroke terminates, and exhaust gas temperature at this time is about 900-1200K.
As a result, we by the agency of is over working cycles of engine, piston is reciprocal between upper and lower stop during this
Four strokes are moved, correspondingly crankshaft has rotated two weeks.
Petrol engine fit on alternating current generator just constitutes gas-liquid-liquid three-phase flow.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of gasoline engine generator, it is characterised in that: including stator, rotor, end cap and bearing；Stator is by stator core, line packet
Winding, base and the other structures part composition for fixing these parts；Rotor is by rotor core winding, retaining ring, center ring, cunning
Ring, fan and shaft composition；By bearing and end cap by the stator of generator, rotor is assembled, and enables rotor in stator
The movement of cutting magnetic line is done in middle rotation.
2. gasoline engine generator according to claim 1, it is characterised in that: be equipped with micropunch on the gasoline engine generator
Plate complex muffler.
3. gasoline engine generator according to claim 2, it is characterised in that: the number of plies of the silencer is wanted according to specific noise elimination
Ask determining.
4. gasoline engine generator according to claim 3, it is characterised in that: when the number of plies of the silencer is multilayer, cavity
Depending on thickness apparent absorption frequency band；When 125~250Hz of low frequency, cavity thickness is 150~220mm；When intermediate frequency is 500~1000Hz,
Cavity is 80~120mm；When high frequency is 2000~4000Hz, cavity is 30~50mm.
5. gasoline engine generator according to claim 3, it is characterised in that: the microperforated panel complex muffler is to use
The sheet metal of 0.5~1mm is processed into 0.5~1mm of aperture, double-layer structure of the punching rate 1%~3%.
6. gasoline engine generator according to claim 5, it is characterised in that: the bilayer microperforated panel pipe silencer is cut
Face is circular ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710843834.2A CN109519275A (en) | 2017-09-19 | 2017-09-19 | A kind of gasoline engine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710843834.2A CN109519275A (en) | 2017-09-19 | 2017-09-19 | A kind of gasoline engine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109519275A true CN109519275A (en) | 2019-03-26 |
Family
ID=65768994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710843834.2A Withdrawn CN109519275A (en) | 2017-09-19 | 2017-09-19 | A kind of gasoline engine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519275A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11343859A (en) * | 1998-05-29 | 1999-12-14 | Mitsubishi Heavy Ind Ltd | Portable engine generator |
| US6525430B1 (en) * | 1999-05-20 | 2003-02-25 | Honda Giken Kogyo Kabushiki Kaisha | Portable engine generator having a fan cover with a control unit mounting portion |
| CN101705864A (en) * | 2009-04-27 | 2010-05-12 | 上海扬科进出口有限公司 | Gasoline engine generator |
| CN102192002A (en) * | 2011-04-13 | 2011-09-21 | 双悦（福建）动力机械有限公司 | Small-sized single-cylinder air cooling super-silent diesel generator set |
| CN102410142A (en) * | 2011-12-01 | 2012-04-11 | 西安瑞金源能源科技有限责任公司 | Wind power generator |
| CN103401357A (en) * | 2013-07-31 | 2013-11-20 | 东方电气集团东风电机有限公司 | 60MW brushless excitation turbine generator |
-
2017
- 2017-09-19 CN CN201710843834.2A patent/CN109519275A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11343859A (en) * | 1998-05-29 | 1999-12-14 | Mitsubishi Heavy Ind Ltd | Portable engine generator |
| US6525430B1 (en) * | 1999-05-20 | 2003-02-25 | Honda Giken Kogyo Kabushiki Kaisha | Portable engine generator having a fan cover with a control unit mounting portion |
| CN101705864A (en) * | 2009-04-27 | 2010-05-12 | 上海扬科进出口有限公司 | Gasoline engine generator |
| CN102192002A (en) * | 2011-04-13 | 2011-09-21 | 双悦（福建）动力机械有限公司 | Small-sized single-cylinder air cooling super-silent diesel generator set |
| CN102410142A (en) * | 2011-12-01 | 2012-04-11 | 西安瑞金源能源科技有限责任公司 | Wind power generator |
| CN103401357A (en) * | 2013-07-31 | 2013-11-20 | 东方电气集团东风电机有限公司 | 60MW brushless excitation turbine generator |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190326 |