CN105888814A - Gas-explosion ramjet homogeneous charge compression ignition engine - Google Patents
Gas-explosion ramjet homogeneous charge compression ignition engine Download PDFInfo
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- CN105888814A CN105888814A CN201410817142.7A CN201410817142A CN105888814A CN 105888814 A CN105888814 A CN 105888814A CN 201410817142 A CN201410817142 A CN 201410817142A CN 105888814 A CN105888814 A CN 105888814A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a gas-explosion ramjet homogeneous charge compression ignition engine and relates to the technical field of plug-type homogeneous charge compression ignition engines. The gas-explosion ramjet homogeneous charge compression ignition engine is based on a pressure-increasing common-rail diesel engine; an air inflation chamber (6) leading to an air cylinder (13) is arranged on the cylinder cover of the gas-explosion ramjet homogeneous charge compression ignition engine; first of all, air with certain pressure is stored in the air inflation chamber (6) in a compression stroke or a power stroke; before ignition, fuel is sprayed into a combustion chamber (12) for homogeneous mixing of the air and the fuel; when the compression stroke approaches the ignition timing moment, an electric control inflation valve (3) is opened for spraying of 2-10 MP of compressed air into the inflation chamber (6); or when a pressure-increasing valve (7) at the lower opening of the inflation chamber (6) is controlled to be open or closed, the air in the inflation chamber (6) is released back to the air cylinder (13) and the air-fuel mixed gas in the combustion chamber (12) is quickly pressurized, so that the pressure and the temperature of the air-fuel mixed gas in the air cylinder (13) can quickly reach the required levels of fuel combustion, and the air-fuel mixed gas in the air cylinder (13) can be subjected to compression ignition quickly; and accordingly the problem that the compression ignition timing moment of a conventional homogeneous charge compression ignition engine is not easy to master can be solved.
Description
The present invention relates to piston type homogeneity compression-ignition engine technical field.
What piston-mode motor was more advanced at present is high-pressure common rail supercharged diesel engine and in-cylinder direct-jet
Petrol engine.High-pressure common rail technology because its oil atomizing is good, injection time is the most by engine works
Widely used.But, current Diesel engine, inject the moment in cylinder in atomized diesel fuel gas blowout,
High pressure in cylinder, high-temperature gas make diesel fuel detonation, diesel oil now burn be atomized diesel fuel with
Air fails to carry out under perfectly homogenous mixing, and this detonation belongs to diffusion combustion, incomplete combustion,
Easily producing soot, from starting to be burned to burning, to terminate the persistent period longer, and the thermal efficiency is low.In-cylinder direct-jet
Although petrol engine has accomplished that fuel burns after being sufficiently mixed with air again, but needs plug ignition,
Not accomplishing at timing moment compression ignition, simultaneously because not can solve charge stratification problem, it is right to need
Air inlet is installed air throttle additional and is controlled ensureing the air-fuel ratio of gaseous mixture, and pumping work loss is big.Apparently,
Diesel engine and petrol engine if able to solve fuel and air be sufficiently mixed after the asking of compression ignition again
Topic, electromotor will have very great development potentiality.Engine research, development mechanism is the most being devoted to development all at present
Matter compression ignition technology, but carry out compression-ignition at exact time after always can not solving homogenizing.If can examine
Consider by arrange compression ratio and adjust boost pressure, make electromotor at compression stroke end, in combustor
Pressure and temperature less than the marginal value of fuel combustion, simultaneously in combustor after air-fuel mixture homogenizing,
In the ignition timing moment, the gas utilizing the external world to have higher interior energy is filled with rapidly in cylinder, makes burning
Indoor pressure and temperature is rapidly reached air-fuel mixture burning desirable pressure and temperature in the ignition timing moment
Degree, make air-fuel mixture rapidly by while compression ignition, electromotor is achieved that at ignition timing homogeneity compression-ignition
Purpose.So burning and exotherm rate of air-fuel mixture is fast, and fuel combustion is complete, and burning is low
Carrying out under temperature lean-burn, engine thermal efficiency is high, and fuel utilization ratio is high, discharges.
It is an object of the invention to provide one possess high-pressure common rail supercharged diesel engine compression ignition characteristic and
Direct injection gasoline engine air-fuel mixture homogenous properties, after air-fuel mixture homogenizing, utilizes pressure
Contracting gas sprays in cylinder at electromotor close to the ignition timing moment, improve rapidly internal pressure of combustion chamber and
Temperature controls the engine technology of igniting.
The technical scheme is that and be achieved in that, on the basis of the high-pressure common rail supercharged diesel engine,
On cylinder lid, make a call to a plenum chamber leading to cylinder, before engine ignition timing, electricity
Control fuel injector starts oil spout in combustor (by adjusting the output pressure of high-pressure oil pump, gasoline, diesel
All can use), in combustor, form the homogeneous charge of certain air-fuel ratio.At engine compression strokes,
Along with piston rises, gas in the jar is compressed, and mixed gas temperature raises with pressure and raises, necessarily
The gaseous mixture of temperature and pressure is pressed into plenum chamber.By to engine compression ratio and charger boost pressure
Power is configured, make compression stroke end chamber temperature all the time fuel can below compression-ignited marginal value,
I.e. in the case of adding cylinder and combustor without outside energy, during piston approaches top dead center, cylinder is intrinsic pressure
Power and temperature close to but do not reach gaseous mixture autoignition conditions, be not enough to spontaneous combustion.Turn close to bent axle at piston
During about 310 degree of angle, automatically controlled charge valve is opened, gases at high pressure (engine with compressor and gas bomb)
Pouring in plenum chamber, the gas being previously pressed in plenum chamber is pushed back cylinder again, when
When piston arrives crank angle about 350 degree, the gaseous mixture in plenum chamber arrives in cylinder, in cylinder
Air-fuel mixture is compressed again, and internal pressure of combustion chamber and temperature raise rapidly and reach gaseous mixture spontaneous combustion
Temperature, in cylinder, homogeneous charge is compression-ignited, and electromotor enters expansion stroke.Also have additionally
A kind of implementation, it is simply that the opening part leading to cylinder at plenum chamber installs pressure charging valve additional, opens at electromotor
Compression stroke time dynamic is close to the expansion stroke after end, or engine ignition close to end, pressure charging valve
Open, cylinder inner high voltage gas is filled with in plenum chamber, is then shut off pressure charging valve, in next one compression punching
Journey connects proximal end when needing igniting, then opens pressure charging valve, is again discharged by the gases at high pressure previously stored
In air return cylinder, the pressure and temperature in combustor is made to rise to rapidly temperature required for fuel combustion, real
The purpose of the most positive moment compression ignition.In the way of homogeneity compression-ignition, thus circulate work.
This invention electromotor adds an opening and leads to the plenum chamber of cylinder, in compression stroke close to end
End or expansion stroke are close to end, and gas in the jar is compressed to plenum chamber and temporarily stores.
This invention adds a pressure charging valve, it is ensured that after in cylinder, certain pressure gas enters plenum chamber
Close, also can guarantee that simultaneously and open in the ignition timing moment, the compressed gas in plenum chamber is released back into
In cylinder, make internal pressure of combustion chamber and the purpose of temperature rapid lifting implementation igniting.
This invention electromotor adds an automatically controlled charge valve, when engine piston is close to ignition timing
Carve, spray into the air of certain pressure to plenum chamber, when pressure charging valve is in open mode, by plenum chamber
Interior gas back in cylinder, it is achieved in the purpose of timing moment supercharging igniting.
This invention combustor is located in cylinder cap, and combustor top has the passage leading to air intake duct, spray
Oil device spout is opened on passage limit, has Gas mixing valve to separate between passage and combustor, mixed during air-breathing
Air valve is opened, passage and combustion chamber, makes combustor can enter fresh air, compression stroke,
Expansion stroke, exhaust stroke are closed, and principal security fuel injector sprays into fuel energy and the combustor of combustor
Interior air intimate mixing by a certain percentage.
This invention electromotor is before ignition timing, and fuel spurts into combustor by fuel injector, by control
Gas mixing valve opening/closing time processed and fuel injector injection time, make air-fuel mixture the most just by a definite proportion
Example homogenizing completes.
This invention electromotor is before external energy enters, and compression ratio and boost pressure are arranged on compression punching
Below the marginal value of journey end fuel compression ignition, before outside energy enters cylinder and combustor, make pressure
Contracting stroke in-cylinder pressure and temperature always close to and less than the pressure and temperature required for fuel combustion.
On the piston top of this invention electromotor, an annular spreading grooves is set, sprays into cylinder from pressure charging valve
Gas try one's best the most distributed about along combustor end opening by annular spreading grooves, it is to avoid by increasing in plenum chamber
Add valve and spray into the gas entrance combustor of cylinder.
The piston top of this invention electromotor faces combustor end opening position, is provided with collection chamber, makes in pressure
Contracting stroke end, in cylinder, the gas without fuel is partially into collection chamber, makes homogeneous charge in combustor
After igniting, mix rapidly with the gas in collection chamber from combustor end opening ejection gas, it is achieved for the second time
Expansion work, improves the thermal efficiency, the operating temperature of working medium in reduction cylinder.
This invention electromotor plenum chamber is built with radiator, and radiator is communicated in exhaust duct, electromotor
Exhaust gas heat is absorbed by radiator, makes a part of heat of engine emission can be injected in plenum chamber
GAS ABSORPTION utilizes.
The invention has the beneficial effects as follows, engine cylinder lid is made a call to a plenum chamber leading to cylinder,
Compression stroke or expansion stroke are to the gas of qi of chong channel ascending adversely indoor storage certain pressure.In intake stroke and compression
Stroke, first injects fuel in combustor as gasoline engine, after air-fuel mixture intimate mixing,
Compression stroke opens, close to ignition timing moment, automatically controlled charge valve, the pressure spraying into elevated pressures to plenum chamber
Contracting air, or by controlling the opening and closing of pressure charging valve, the gas in plenum chamber is released back into cylinder, right
The rapid supercharging of air-fuel mixture in combustor, in making cylinder, air-fuel mixture pressure and temperature is rapidly reached
Pressure and temperature needed for fuel combustion, in making cylinder, gaseous mixture is by compression ignition the most simultaneously, therefore solves
The problem that homogenizing homogeneity compression-ignition engine is difficult to grasp timing moment compression-ignition.The most both ensure that all
The reliability of matter compression-ignition engine work, homogeneous charge compression-ignition simultaneously, improve fuel combustion
And exotherm rate, ignition temperature is low, without diffusion combustion, burning completely, reduce oxynitride and
The discharge of soot, a part of heat that tail gas is discharged can also be absorbed by radiator, improves heat
Efficiency, improves fuel utilization ratio, decreases energy loss.
Accompanying drawing illustrates:
Fig. 1. gas explosion punching press homogeneity compression-ignition engine intake stroke schematic diagram
Fig. 2. gas explosion punching press homogeneity compression-ignition engine compression stroke schematic diagram
Fig. 3. gas explosion punching press homogeneity compression-ignition engine time of ignition schematic diagram
Fig. 4. gas explosion punching press homogeneity compression-ignition engine energy storage moment schematic diagram
Fig. 5. gas explosion punching press homogeneity compression-ignition engine aerofluxus moment schematic diagram
Illustrate the present invention is made detailed further below below in conjunction with the accompanying drawings.
As it is shown in figure 1, this gas explosion punching press homogeneity compression-ignition engine is by inlet valve (1), exhaust valve (2),
Automatically controlled charge valve (3), radiator (4), Gas mixing valve (5), plenum chamber (6) pressure charging valve (7), expands
Scattered groove (8), piston (9), fuel injector (10), passage (11), combustor (12), cylinder (13),
Collection chamber (14) forms.
As it is shown in figure 1, electromotor is in intake stroke, automatically controlled charge valve (3), pressure charging valve (7) are closed,
Inlet valve (1), Gas mixing valve (5) are opened, and passage (11) is by air intake duct with combustor (12) even
Logical, in air intake duct, fresh air enters combustor (12) because of suction function by passage (11), sprays
Oil device (10) sprays into atomized fuel in cylinder, with the fresh air entered from passage (11) in combustion
Burn room (12) to mix.
As in figure 2 it is shown, electromotor is in compression stroke, automatically controlled charge valve (3), Gas mixing valve (5) are closed,
Inlet valve (1) and exhaust valve (2) are also switched off, and when engine ignition starts, pressure charging valve (7) is in pressure
Contracting stroke end turns off after opening, and plenum chamber (6) enters certain energy compression gas from cylinder (13)
Body stores.
During as it is shown on figure 3, engine ignition starts, second compression stroke, increase valve (7) and open,
The compressed gas stored in plenum chamber (6) is released back into cylinder (13), promotes in combustor (12)
Pressure and temperature, makes electromotor smooth ignition start.
As it is shown on figure 3, electromotor is under pressure charging valve (7) normally open, it is possible to utilize and open automatically controlled filling
Air valve (3), utilizes the compressed air by automatically controlled charge valve (3), by the gas in plenum chamber (6)
Body pushes back in cylinder (13), it is achieved to combustor (12) supercharging rapidly and heat up air-fuel mixture
The purpose of igniting.So, electromotor can utilize automatically controlled charge valve (3) to plenum chamber (6) pressurising
Start electromotor, it is also possible to utilize compression stroke or expansion stroke plenum chamber (6) to be carried out energy storage, so
After the gas that stores in compression stroke is by plenum chamber (6) be released back into combustor (12) and light a fire.
As it is shown on figure 3, the gas in plenum chamber (6) sprays into cylinder (13) to crossing pressure charging valve (7)
It is introduced into piston (9) top spreading grooves (8), by spreading the diffusion of (8), makes this part
Gas more uniform distribution is in cylinder (13)
As it is shown on figure 3, after the air-fuel mixture in combustor (12) is lighted a fire, from combustor (12)
End opening sprays, and mixes with the gas in collection chamber (14), makes the gas reexpansion in collection chamber do
Merit.
As it is shown on figure 3, when fuel injector (10) not oil spout, when pressure charging valve (7) open mode,
Available by automatically controlled charge valve (3) control compressed air, spray into inflation in compression stroke close to end
Room (6) in entering cylinder (13), interior by compressed gas can be converted into mechanical energy, and promotion is started
Machine rotates.
As shown in Figure 4, after engine ignition, electromotor expansion stroke is close to end, pressure charging valve (7)
Open and then turn off, the gas in cylinder (13) with certain pressure is pressed into plenum chamber (6) storage
Store away.When next compression stroke is close to end, pressure charging valve (7) is opened, by plenum chamber (6)
The compressed gas of interior storage is released back in cylinder (13) (as shown in Figure 3) again.So working as electromotor
After startup, it is possible to utilize expansion stroke that plenum chamber (6) is carried out energy storage.
As it is shown in figure 5, electromotor is opened at exhaust stroke, exhaust valve (2), waste gas is arranged from exhaust duct
Go out, radiator (4) one end in plenum chamber (6), the other end in exhaust duct, radiator (4)
From exhaust duct waste gas, absorb heat when engine exhaust, add then to the gas in plenum chamber (6)
Heat, can reclaim discharge energy.
Claims (11)
1. a gas explosion punching press homogeneity compression-ignition engine, including automatically controlled charge valve (3), radiator (4), Gas mixing valve (5), fills
Air chamber (6), pressure charging valve (7), spreading grooves (8), passage (11), collection chamber (14).It is characterized in that:
(1) having installed a plenum chamber (6) in cylinder head additional, plenum chamber Single port is equipped with charge valve (3), and another port is opened in gas
In cylinder (13) and equipped with pressure charging valve (7), plenum chamber (6) reaches row built with radiator (4), radiator (4) other end
In air flue.
(2) combustor (13) is located in cylinder head, and fuel injector (10) nozzle is opened in combustor (12), combustor (12)
With carry out being connected by passage (11), the connection between passage (11) and combustor (12) and blocking-up are by mixing
Air valve (5) is controlled.
(3) position, combustor (12) end opening correspondence piston (9) top is provided with collection chamber (14), plenum chamber (6) end opening supercharging
There is spreading grooves (8) position, valve (7) corresponding piston (9) top, cylinder (13) some gas compression interior to collection chamber (14)
With (8) in spreading grooves, do not enter combustor (12).
2. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention electromotor adds an opening and leads to gas
The plenum chamber (6) of cylinder (13), is pressed close to art end, cylinder (13) interior gas close to end or expansion stroke in compression stroke
It is reduced to plenum chamber (6) temporarily store.
3. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention adds a pressure charging valve (7), can protect
Card certain pressure gas in cylinder (13) enters plenum chamber (6) and closes afterwards, also can guarantee that simultaneously and opens in the ignition timing moment,
Compressed gas in plenum chamber (6) is released back in cylinder (13), makes combustor (12) interior pressure and temperature promote rapidly reality
The purpose now lighted a fire.
4. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention electromotor adds a charge valve (3),
At engine piston (9) close to the ignition timing moment, spray into the air of certain pressure to plenum chamber (6), in pressure charging valve (7)
When being in open mode, the gas in plenum chamber (6) is back in cylinder (13), it is achieved in timing moment supercharging igniting
Purpose.
5. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention combustor (12) is located in cylinder cap, combustion
Burning room (12) and have the passage (11) leading to air intake duct, fuel injector (10) spout is opened on passage (11) limit, ventilation
Having Gas mixing valve (5) to separate between hole (11) and combustor (12), during air-breathing, Gas mixing valve (5) is opened, passage (11)
Connect with combustor (12), make combustor (12) that fresh air can be entered, Gas mixing valve (5) compression stroke, expansion stroke,
Exhaust stroke is closed, and principal security fuel injector (10) sprays into the fuel of combustor (12) can be with the air in combustor (12)
Intimate mixing by a certain percentage.
6. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention electromotor is before ignition timing, and fuel leads to
Cross fuel injector (10) and spurt into combustor (12), by controlling Gas mixing valve (5) opening/closing time and fuel injector spray (10) oil spout
Time, air-fuel mixture homogenizing the most by a certain percentage is made to complete.
7. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention electromotor before external energy enters,
Compression ratio and boost pressure are arranged on below the marginal value of compression stroke end fuel compression ignition, enter cylinder (13) in outside energy
Before combustor (12), make compression stroke cylinder (13) interior pressure and temperature always close and be less than required for fuel combustion
Pressure and temperature.
8. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, on piston (9) top of this invention electromotor, if
Put an annular spreading grooves (8), spray into the gas of cylinder (13) by annular spreading grooves (8) edge as far as possible from pressure charging valve (7)
Combustor (12) end opening is distributed about.
9. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, piston (9) top of this invention electromotor faces
Combustor (12) end opening position, is provided with collection chamber (14), makes at compression stroke art end, and cylinder interior divides gas to enter collection chamber (14),
After making the igniting of combustor (12) interior homogeneous charge, from combustor (12) end opening ejection gas and the gas in collection chamber (14)
Body mixes rapidly, it is achieved expansion work for the second time, improves the thermal efficiency, reduces the operating temperature of cylinder (13) interior working medium.
10. gas explosion punching press homogeneity compression-ignition engine as claimed in claim 1, this invention electromotor plenum chamber (6) is built with putting
Hot device (4), radiator (4) is communicated in exhaust duct, and engine exhaust heat is absorbed by radiator (4), makes electromotor arrange
The GAS ABSORPTION that a part of heat put can be injected in plenum chamber (6) utilizes.
11. gas explosion punching press homogeneity compression-ignition engines as claimed in claim 1 are in the case of fuel injector (10) not oil spout, the most logical
Cross the control charge valve (3) opening and closing when engine ignition timing is carved, utilize compressed air to pass through plenum chamber (6) press-in cylinder
In, the compressed-air actuated interior mechanical energy that can be converted into can be promoted electromotor work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817142.7A CN105888814A (en) | 2014-12-19 | 2014-12-19 | Gas-explosion ramjet homogeneous charge compression ignition engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817142.7A CN105888814A (en) | 2014-12-19 | 2014-12-19 | Gas-explosion ramjet homogeneous charge compression ignition engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888814A true CN105888814A (en) | 2016-08-24 |
Family
ID=56701348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410817142.7A Pending CN105888814A (en) | 2014-12-19 | 2014-12-19 | Gas-explosion ramjet homogeneous charge compression ignition engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685792A (en) * | 2018-07-04 | 2020-01-14 | 张龙兆 | Homogeneous compression ignition engine with air intake and heat exchange surrounding valve |
| CN111810303A (en) * | 2020-07-16 | 2020-10-23 | 衣桂英 | Electromagnetic valve power-on control device and diesel engine explosion stroke supercharging system |
-
2014
- 2014-12-19 CN CN201410817142.7A patent/CN105888814A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685792A (en) * | 2018-07-04 | 2020-01-14 | 张龙兆 | Homogeneous compression ignition engine with air intake and heat exchange surrounding valve |
| CN111810303A (en) * | 2020-07-16 | 2020-10-23 | 衣桂英 | Electromagnetic valve power-on control device and diesel engine explosion stroke supercharging system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
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| WD01 | Invention patent application deemed withdrawn after publication |