CN204226008U - A kind of firing unit realizing Used in Diesel Engines methanol gasoline - Google Patents
A kind of firing unit realizing Used in Diesel Engines methanol gasoline Download PDFInfo
- Publication number
- CN204226008U CN204226008U CN201420583155.8U CN201420583155U CN204226008U CN 204226008 U CN204226008 U CN 204226008U CN 201420583155 U CN201420583155 U CN 201420583155U CN 204226008 U CN204226008 U CN 204226008U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- glow plug
- methanol gasoline
- valve
- air outlet
- 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.)
- Active
Links
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model relates to a kind of firing unit realizing Used in Diesel Engines methanol gasoline.Also can not reduce noxious gas emission at present, can the firing unit of vast scale burning methanol gasoline.The utility model comprises piston, air outlet flue, wrist pin, cylinder, connecting rod, crank pin, bent axle, exhaust valve, intake valve, intake duct and oil sprayer, and piston is positioned at cylinder, and bent axle is fixing in the cylinder; One end of connecting rod is connected on piston by wrist pin, and the other end is connected on bent axle by crank pin; Air outlet flue, exhaust valve, intake valve, intake duct and oil sprayer are all fixed on the top of cylinder, and are all communicated with the inside of cylinder; Be characterized in: also comprise vacuum EGR valve and glow plug, described vacuum EGR valve is connected between air outlet flue and intake duct, and glow plug is fixed on the top of cylinder, and glow plug is communicated with the inside of cylinder, and glow plug is near oil sprayer.The utility model can reduce noxious gas emission, can vast scale burning methanol gasoline.
Description
Technical field
The utility model relates to a kind of firing unit realizing Used in Diesel Engines methanol gasoline, belongs to technical field of internal combustion engines.
Background technique
Because the octane value of Aalcohols fuel is high, have good antiknock quality, therefore burn on the diesel engine that compression ratio is higher, be conducive to the thermal efficiency improving motor, methyl alcohol is clean, good alternative fuel.The coal production that methyl alcohol available resources are abundant, and be about to realize the cheap production in industrially scalable ground by the technology of inexhaustible living beings production ethanol.Methanol gasoline is used to make fuel on a diesel engine, not only can release portion region-by-region diesel oil situation in short supply, and obviously can reduce diesel oil engine carbon smoke particulate and nitrogen oxide (NO
x) discharge, more easily reach the requirement of Abgasgesetz.
Although it is high-leveled and difficult with compression ignite that one of important physicochemical property of methyl alcohol is spontaneous ignition temperature, but there is stronger spontaneous combustion tendency, when namely having temperature to reach the hot surface of certain level around the mixed gas of concentration within the scope of Flammability limits, the rapid involuntary ignition of methyl alcohol mixed gas near hot surface can be made, then drive mixture combustion around.
Although the way adding spark plug on the cylinder cap of internal-combustion engine is had domestic, but spark plug needs power regulation system, high-energy igniter, distributing disk and electrode spark plug, and spark plug needs by camshaft actuated, engine structure variation is large, causes the system of spark plug method more complicated, the reliability of whole system is decided by more component reliability separately, and the factor affecting combustion process is also more.
In sum, also there is no a kind of reasonable in design at present, the discharge of harmful gas can be reduced, and can the firing unit that Used in Diesel Engines methanol gasoline be realized of burning methanol gasoline of vast scale.
Model utility content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, can reduce the discharge of harmful gas, and can the firing unit realizing Used in Diesel Engines methanol gasoline of burning methanol gasoline of vast scale.
The technical scheme in the invention for solving the above technical problem is: this firing unit realizing Used in Diesel Engines methanol gasoline comprises piston, air outlet flue, wrist pin, cylinder, connecting rod, crank pin, bent axle, exhaust valve, intake valve, intake duct and oil sprayer, described piston is positioned at cylinder, described bent axle is fixing in the cylinder, one end of described connecting rod is connected on piston by wrist pin, the other end of this connecting rod is connected on bent axle by crank pin, described air outlet flue, exhaust valve, intake valve, intake duct and oil sprayer are all fixed on the top of cylinder, this air outlet flue, exhaust valve, intake valve, intake duct and oil sprayer are all communicated with the inside of cylinder, its structural feature is: also comprise vacuum EGR valve and glow plug, described vacuum EGR valve is connected between air outlet flue and intake duct, described glow plug is fixed on the top of cylinder, this glow plug is communicated with the inside of cylinder, described glow plug is near oil sprayer.
As preferably, glow plug described in the utility model is outside equipped with a sheath with holes, there is gap between this sheath and glow plug.Gap between sheath and glow plug is equivalent to a small-sized precombustion chamber, can effectively avoid methyl alcohol and air swirl to act directly on hot body, reduces thermal loss, improves working life.
As preferably, glow plug described in the utility model is ceramic material.
The utility model compared with prior art, have the following advantages and effect: the mechanism changing existing internal-combustion engine, the basis of existing internal-combustion engine installs glow plug additional on cylinder cap, glow plug nestles up oil sprayer and arranges, make diesel engine can burning methanol gasoline, reduce the discharge of harmful gas, and can the burning methanol gasoline of vast scale, structure is simple, change little is as far as possible carried out on the basis of existing internal-combustion engine, to realize the function of Used in Diesel Engines methanol gasoline, be easy to be extended and applied.The utility model installs glow plug additional, and because glower is to the effect of methanol gasoline heating around, be more easily atomized, gasification, delay period is short, and cause in territory, glow plug glower peripheral cell and catch fire and burn, rate of heat release is larger.The utility model is lower than the energy consumption of former diesel engine, and exhaust is smokeless, owing to installing glow plug additional, methyl alcohol is more easily vaporized, burns more perfect, therefore can obtain the discharge of lower CO, HC and possible trouble alcohol under more operating mode.
The utility model installs a vacuum EGR valve additional in outlet pipe side, allows portion discharge get back in cylinder, can improve the temperature of working medium in cylinder, improve the formation of mixed gas, accelerated combustion process, improves the thermal efficiency.In methanol gasoline products of combustion, soot particle is little simultaneously, vacuum EGR valve can not form dirt carbon distribution to gas handling system, and according to the information etc. of the rotating speed of motor, load and cooling water, regulates the lift of vacuum EGR valve, control the size of EGR rate, opened loop control is carried out to EGR.
Reasonable in design of the present utility model, scientific arrangement, little to the structural change of motor, be conducive to promotion and application, wide market, do not need extra power regulation system, high-energy igniter, distributing disk and electrode spark plug.
Accompanying drawing explanation
Fig. 1 is the structural representation of the firing unit realizing Used in Diesel Engines methanol gasoline in the utility model embodiment.
Fig. 2 is that the cylinder of diesel engine in the utility model embodiment covers the positional structure schematic diagram installing glow plug additional.
Fig. 3 is the cross section structure schematic diagram that the cylinder of diesel engine in the utility model embodiment covers the position installing glow plug additional.
Fig. 4 is the structural representation of the glow plug in the utility model embodiment.
In figure: 1: vacuum EGR valve; 2: water seal; 3: piston; 4: air outlet flue; 5: wrist pin; 6: cylinder; 7: connecting rod; 8: crank pin; 9: bent axle; 10: exhaust valve; 11: intake valve; 13: intake duct; 14: oil sprayer; 15: glow plug.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment.
See Fig. 1 to Fig. 4, the firing unit realizing Used in Diesel Engines methanol gasoline in the present embodiment comprises vacuum EGR valve 1, piston 3, air outlet flue 4, wrist pin 5, cylinder 6, connecting rod 7, crank pin 8, bent axle 9, exhaust valve 10, intake valve 11, intake duct 13, oil sprayer 14 and glow plug 15.
Piston 3 in the present embodiment is positioned at cylinder 6, and bent axle 9 is fixed in cylinder 6, and one end of connecting rod 7 is connected on piston 3 by wrist pin 5, and the other end of this connecting rod 7 is connected on bent axle 9 by crank pin 8.Air outlet flue 4, exhaust valve 10, intake valve 11, intake duct 13, oil sprayer 14 and glow plug 15 are all fixed on the top of cylinder 6, this air outlet flue 4, exhaust valve 10, intake valve 11, intake duct 13, oil sprayer 14 are all communicated with the inside of cylinder 6 with glow plug 15, and glow plug 15 is near oil sprayer 14.Vacuum EGR valve 1 in the present embodiment is connected between air outlet flue 4 and intake duct 13, allows portion discharge get back in cylinder, can improve the temperature of working medium in cylinder, improve the formation of mixed gas, accelerated combustion process, improves the thermal efficiency.
Under normal circumstances, glow plug 15 is outside equipped with a sheath with holes, there is gap between this sheath and glow plug 15.Glow plug 15 is ceramic material.
The utility model acts directly on hot body in order to avoid methyl alcohol and air swirl, reduce thermal loss and improve working life, a foraminate sheath of band is added in the outside of glow plug 15, and have certain clearance space between sheath and glow plug 15, after glow plug 15 adds sheath, become again a small-sized precombustion chamber like this.Glow plug 15 nestles up oil sprayer 14 and arranges, spray methanol gasoline at budc 10-20CA, the glower having added sheath extend in firing chamber, improves compression ratio.Install vacuum EGR valve 1 additional, according to the rotating speed of motor, the information such as load and cooling water, regulates the lift of vacuum EGR valve 1, controls the size of EGR rate.Methanol gasoline is used to make fuel on a diesel engine, not only can release portion region-by-region diesel oil situation in short supply, and obviously can reduce diesel oil engine carbon smoke particulate and nitrogen oxide (NO
x) discharge, more easily reach the requirement of Abgasgesetz.The utility model does not change the combustion mode of former diesel engine, still adopts compression-ignited diffusion combustion mode.Glow plug 15 chooses the glow plug 15 can selecting different size according to the different structure of all kinds of engine cylinder cover.
The utility model proposes and install glow plug 15 additional on cylinder cap, glow plug 15 is positioned at oil sprayer 14 downstream, turbulence chamber eddy current direction, and near combustion chamber wall surface.Work with electric control system controls glow plug 15, and the size of regulator power, the power of glow plug 15 is lower, and the power increasing glow plug 15 can improve the thermal efficiency of carbinol gasoline fuel motor, but after power is increased to certain value, the thermal efficiency can't increase.The utility model proposes and install glow plug 15 additional on cylinder cap, resistance wire can be embedded in the filler of insulation, is sealed in stainless steel sleeve, and resistance coil is combined by the heating coil being welded on glow plug head and the bottom screw control coil be connected that goes between.
The gasoline of burning methanol on a diesel engine that the utility model proposes, for ensureing the nominal power that will have former diesel engine, former high-pressure injection pump and oil sprayer 14 can be adopted, methanol gasoline every circulation-supplied amount is larger than diesel oil, in order to shorten injection period, plunger diameter should be strengthened under the restriction of first Injection Pump structural strength.Introduce EGR to improve the thermal efficiency further and reducing discharge, install a vacuum EGR valve 1 additional in outlet pipe 4 side, allow portion discharge get back in cylinder 6, the temperature of working medium in cylinder can be improved, improve the formation of mixed gas, accelerated combustion process, improve the thermal efficiency; In methanol gasoline products of combustion, soot particle is little simultaneously, vacuum EGR valve 1 can not form dirt carbon distribution to gas handling system, and according to the information etc. of the rotating speed of motor, load and cooling water, regulates the lift of EGR valve, control the size of EGR rate, opened loop control is carried out to EGR.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this specification is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (3)
1. one kind realizes the firing unit of Used in Diesel Engines methanol gasoline, comprise piston, air outlet flue, wrist pin, cylinder, connecting rod, crank pin, bent axle, exhaust valve, intake valve, intake duct and oil sprayer, described piston is positioned at cylinder, described bent axle is fixing in the cylinder, one end of described connecting rod is connected on piston by wrist pin, the other end of this connecting rod is connected on bent axle by crank pin, described air outlet flue, exhaust valve, intake valve, intake duct and oil sprayer are all fixed on the top of cylinder, this air outlet flue, exhaust valve, intake valve, intake duct and oil sprayer are all communicated with the inside of cylinder, it is characterized in that: also comprise vacuum EGR valve and glow plug, described vacuum EGR valve is connected between air outlet flue and intake duct, described glow plug is fixed on the top of cylinder, this glow plug is communicated with the inside of cylinder, described glow plug is near oil sprayer.
2. the firing unit realizing Used in Diesel Engines methanol gasoline according to claim 1, is characterized in that: described glow plug is outside equipped with a sheath with holes, there is gap between this sheath and glow plug.
3. the firing unit realizing Used in Diesel Engines methanol gasoline according to claim 1, is characterized in that: described glow plug is ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583155.8U CN204226008U (en) | 2014-10-10 | 2014-10-10 | A kind of firing unit realizing Used in Diesel Engines methanol gasoline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583155.8U CN204226008U (en) | 2014-10-10 | 2014-10-10 | A kind of firing unit realizing Used in Diesel Engines methanol gasoline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226008U true CN204226008U (en) | 2015-03-25 |
Family
ID=52924113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420583155.8U Active CN204226008U (en) | 2014-10-10 | 2014-10-10 | A kind of firing unit realizing Used in Diesel Engines methanol gasoline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226008U (en) |
-
2014
- 2014-10-10 CN CN201420583155.8U patent/CN204226008U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2606215B1 (en) | Internal combustion engine provided with a stoichiometric mixture of two fuels with a compression ignition | |
| CN103061908B (en) | Flexible double fuel HPCC engine combustion, discharge control method and device | |
| CN101571069B (en) | Dual-fuel combustion system for internal combustion engines | |
| EP2807355B1 (en) | Fuel reactivity stratification in rotary diesel engines | |
| CN102251897A (en) | Multi-fuel premixing combustion system for internal combustion engine | |
| CN104500247B (en) | Combustion control method for all-condition plane of direct-injection compression-ignition engine | |
| CN109209656A (en) | A kind of multi-injection and precombustion chamber low pressure gas supply and diesel oil is micro- sprays the natural gas engine burning tissues method ignited | |
| CN111379634B (en) | Lean-burn engine and automobile | |
| CN102226426A (en) | Dual-fuel composite homogenous charge compression ignition combustion system based on activation heat atmosphere | |
| CN107061064A (en) | A kind of equivalent combustion system and its control method based on air-fuel mixture enleanment | |
| CN101413422A (en) | Direct spraying natural gas two-air valve engine underpressure layered combustion chamber structure in cylinder | |
| CN109630336A (en) | Ignition system and vehicle for methanol engine | |
| CN104405496A (en) | Natural gas engine pre-combustion chamber type gas supply device | |
| CN204226008U (en) | A kind of firing unit realizing Used in Diesel Engines methanol gasoline | |
| CN217898006U (en) | Combustion system and engine | |
| CN103216316B (en) | Low-temperature combustion method of internal-combustion engine with fuel reformation inside cylinders and system | |
| CN110067638A (en) | A kind of fuel jet ignition type premixed combustion of IC engine system | |
| CN201306206Y (en) | Internal direct-injection natural-gas double-air-valve engine rareness layering combustion chamber structure | |
| CN101929364B (en) | Diffusion combustion method for knock-resisting compression ignition of equivalence-ratio gasoline direct injection engine | |
| CN212079482U (en) | Intelligent catalytic fuel-saving combustion-supporting device for engine | |
| CN114017179A (en) | Lean combustion system and method | |
| CN1320261C (en) | Piston top whirling chamber combustion system | |
| Bhiogade et al. | A comparative experimental study on engine operating on premixed charge compression ignition and compression ignition mode | |
| CN102691603B (en) | Gasoline and gas in-cylinder direct injection device and control method thereof | |
| CN100354507C (en) | Premixed combustion system of diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |