AU2021105580A4 - Adjusting structure for engine intake physicochemical property - Google Patents
Adjusting structure for engine intake physicochemical property Download PDFInfo
- Publication number
- AU2021105580A4 AU2021105580A4 AU2021105580A AU2021105580A AU2021105580A4 AU 2021105580 A4 AU2021105580 A4 AU 2021105580A4 AU 2021105580 A AU2021105580 A AU 2021105580A AU 2021105580 A AU2021105580 A AU 2021105580A AU 2021105580 A4 AU2021105580 A4 AU 2021105580A4
- Authority
- AU
- Australia
- Prior art keywords
- engine
- deionized water
- hydrogen
- injection device
- adjusting structure
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/028—Adding water into the charge intakes
-
- 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
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0644—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being hydrogen, ammonia or carbon monoxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses an adjusting structure for engine intake physicochemical property,
which is arranged on an inlet pipe of the engine and comprises a deionized water injection
device and a hydrogen injection device, wherein the deionized water injection device and the
hydrogen injection device are electrically connected with a driving computer so as to control
the injection amount of deionized water and hydrogen when the engine is in a medium and
small load working condition and control the injection amount of deionized water when the
engine is in a high load working condition.The invention can effectively improve the
combustion efficiency of the engine and reduce the emission of carbon oxides.
1/2
Figures
90 4
5
6
Figure 1
waWffs e: 0%
watWrA raft 5%
aweru reno: 10%
ww r~e 20%
7 wtrfu4 ro: 30%
wetarufew: 60%
weoerluel fewe: 40%
watermustrtaw: 7fo
1 e0de r~:10
'4
3
2
.20 -10 0 10 20 30 40 50 64
Crank angle [deg]
Figure 2
Description
1/2
Figures
90 4 5
6
Figure 1
waWffs e: 0% watWrA raft 5% aweru reno: 10% ww r~e 20% 7 wtrfu4 ro: 30%
wetarufew: 60% weoerluel fewe: 40% watermustrtaw: 7fo 1 e0de r~:10
'4
3
2 .20 -10 0 10 20 30 40 50 64 Crank angle [deg]
Figure 2
Adjusting structure for engine intake physicochemical property
The invention relates to the technical field of automobile engines, in particular to
an adjusting structure for engine intake physicochemical property.
In the prior art, the physicochemical property of intake air are not adjusted on the
engine, or only one of water or hydrogen is used for adjustment, so as to achieve the
purpose of improving the working efficiency of the engine; however, there is no prior
art that rationally allocates water and hydrogen to achieve the purposes of better
adjusting the working efficiency of the engine and reducing the emission of nitrogen
oxides.
The purpose of the present invention is to provide an adjusting structure for
engine intake physicochemical property and a reasonable configuration scheme of
water and hydrogen to further improve the working efficiency of the engine.
In order to achieve the above purpose, the present invention provides the
following technical scheme: an adjusting structure for engine intake physicochemical
property is arranged on the inlet pipe of the engine, and comprises a deionized water
injection device and a hydrogen injection device, both of which are electrically
connected with a driving computer, so as to control the injection amount of deionized
water and hydrogen when the engine is under medium and small load conditions, and
control the injection amount of deionized water when the engine is under high load
conditions, and supply hydrogen when the ratio of deionized water to fuel exceeds 50.
Furthermore, when the engine is under medium and small load conditions, the
hydrogen injection device injects hydrogen into the engine according to the engine speed, load and air intake to improve fuel efficiency. When the ratio of hydrogen to fuel exceeds 4%, the deionized water injection device injects deionized water into the engine and controls the ratio of deionized water to fuel to be less than 10%. When the engine is under high load conditions, the deionized water injection device injects deionized water into the engine to advance the ignition advance angle.
Preferably, the first nozzle of the deionized water injection device and the second
nozzle of the hydrogen injection device are respectively arranged at the throat of the
air inlet pipe.
Compared with the prior art, the invention has the beneficial effects that:
Under medium and small load (throttle opening within 0 .25-0 .85/0 .25), a
certain amount of hydrogen is injected according to the engine speed, load and intake
air quantity, which can effectively improve the engine combustion speed, make the
engine combustion close to the theoretical constant volume cycle, and improve the
engine combustion efficiency. At the same time, when the injection ratio of hydrogen
exceeds a certain limit (4%) according to the working conditions, a small amount of
water (water/oil ratio is less than 10%) can be injected into the intake port, which can
reduce the increase of oxygenates caused by injecting hydrogen without reducing the
efficiency.
Under the working condition of high-load engine (throttle opening is 0 .85-0 .95),
the detonation tendency of combustion can be reduced by injecting a large proportion
of water, so that the ignition advance angle is advanced and the combustion phase is
in a relatively efficient range, thus increasing the combustion-work conversion
efficiency, improving the thermal efficiency of the engine and reducing the emission
of oxides. However, when the water/oil injection amount exceeds 50%, the excessive
water may not evaporate completely and effectively, especially at high speed and high load. This will cause the existence of water mist, which will greatly deteriorate the combustion. However, if a certain proportion of hydrogen can be injected at this time, the deterioration can be alleviated, and the problem of detonation will not be caused at the same time.
Fig. 1 is a schematic sectional view of the present invention;
Fig. 2 is a graph showing the relationship between cylinder pressure and water
spray amount in the present invention;
Fig. 3 is a test chart showing the improvement of the combustion process by
hydrogen doping according to the present invention.
In the drawing: engine -1, inlet pipe -2, deionized water injection device -3,
hydrogen injection device -4, nozzle 1 -5 , nozzle 2 -6.
The technical scheme in the embodiments of the present invention will be
described clearly and completely with reference to the drawings in the embodiments
of the present invention. Obviously, the described embodiments are only part of the
embodiments of the present invention, not all of them. Based on the embodiments of
the present invention, all other embodiments obtained by ordinary technicians in the
field without creative labor belong to the scope of protection of the present invention.
With reference to fig. 1, an adjusting structure for engine intake physicochemical
property is provided on an inlet pipe 2 of an engine 1, which includes a deionized
water injection device 3 and a hydrogen injection device 4, specifically, the deionized
water injection device 3 includes a nozzle 1-5 and a controller arranged at the throat
of the inlet pipe 2, and the hydrogen injection device 4 includes a nozzle 2-6 and a controller arranged at the throat of the inlet pipe 2. The controllers of the deionized water injection device 3 and the hydrogen injection device 4 are electrically connected with the driving computer, so as to control the injection amount of deionized water and hydrogen when the engine 1 is under medium and small load conditions, and control the injection amount of deionized water when under high load conditions.
Specifically, the hydrogen injection device 3 injects hydrogen into the engine 1
according to the engine 1 speed, load and air intake to improve fuel efficiency. When
the injection ratio of hydrogen to fuel exceeds 4%, the deionized water injection
device 3 injects deionized water into the engine 1 and controls the injection ratio of
deionized water to fuel to be less than 10%. When the engine 1 is under high load
condition, the deionized water injection device 3 injects deionized water into the
engine to advance ignition advance angle.When the injection ratio of deionized water
to fuel oil exceeds 50%, hydrogen is replenished.
Fig. 2 is a graph showing the relationship between cylinder pressure and water
injection quantity. The cylinder pressure decreases with increasing deionized water.
Fig. 3 shows the improvement of combustion process by hydrogen doping, including
different water injection quantity, ignition advance angle and the influence of
hydrogen doping on cylinder pressure.
Although embodiments of the present invention have been shown and described,
it will be understood by those of ordinary skill in the art that various changes,
modifications, substitutions and modifications can be made to these embodiments
without departing from the principles and spirit of the present invention, and the scope
of the present invention is defined by the appended claims and their equivalents.
Claims (3)
1. An adjusting structure for engine intake physicochemical property arranged on
an engine inlet pipe is characterized in that the adjusting structure comprises a
deionized water injection device and a hydrogen injection device, both of which are
electrically connected with a driving computer, so as to control the injection amount
of deionized water and hydrogen when the engine is under medium and small load
conditions, and control the injection amount of deionized water when the engine is
under high load conditions, and supply hydrogen when the proportion of deionized
water in fuel exceeds 50%o
2. An adjusting structure for engine intake physicochemical property according
to claim 1 is characterized in that: when the engine is under the working condition of
medium and small load, the hydrogen injection device injects hydrogen into the
engine according to the engine speed, load and intake air quantity so as to improve
fuel efficiency, and when the ratio of hydrogen to fuel exceeds 4%, the deionized
water injection device injects deionized water into the engine and controls the ratio of
deionized water to fuel to be less than 10%; when the engine is under the working
condition of high load, the deionized water injection device injects deionized water to
the engine to advance the ignition advance angle.
3. An adjusting structure for engine intake physicochemical property according
to claim 2 is characterized in that the nozzle 1 of the deionized water injection device
and the nozzle 2 of the hydrogen injection device are respectively arranged at the
throat of the air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105580A AU2021105580A4 (en) | 2021-08-16 | 2021-08-16 | Adjusting structure for engine intake physicochemical property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105580A AU2021105580A4 (en) | 2021-08-16 | 2021-08-16 | Adjusting structure for engine intake physicochemical property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021105580A4 true AU2021105580A4 (en) | 2021-10-14 |
Family
ID=78007537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021105580A Ceased AU2021105580A4 (en) | 2021-08-16 | 2021-08-16 | Adjusting structure for engine intake physicochemical property |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021105580A4 (en) |
-
2021
- 2021-08-16 AU AU2021105580A patent/AU2021105580A4/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |