CN109209694A - Internal combustion engine and its air assist system - Google Patents
Internal combustion engine and its air assist system Download PDFInfo
- Publication number
- CN109209694A CN109209694A CN201710542515.8A CN201710542515A CN109209694A CN 109209694 A CN109209694 A CN 109209694A CN 201710542515 A CN201710542515 A CN 201710542515A CN 109209694 A CN109209694 A CN 109209694A
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- Prior art keywords
- main
- combustion engine
- internal combustion
- air
- gas
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 72
- 239000002283 diesel fuel Substances 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 235000021168 barbecue Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention is in relation to a kind of combustion air auxiliary system, for being supplied to the combustion chamber of the internal combustion engine with main gas handling system, including gas source, main valve, the conduit for connecting by inlet end the gas source and main valve, the conduit has outlet side, and the outlet side is connected to the satellite interface of the manifold of the combustion chamber of the internal combustion engine.Using combustion air auxiliary system of the invention, increase pressure can be made rapider.
Description
Technical field
The application especially starts in relation to a kind of raising diesel engine in relation to a kind of internal combustion engine and its air assist system
The internal combustion engine and its air assist system of performance.
Background technique
Internal combustion engine makes the chemical energy in fuel be converted into thermal energy by burning, so that engine be promoted to rotate, provides power.
The burning of internal combustion engine needs fuel and air, and fuel is generally bavin Water Oil Or Gas, and fuel and the air as combustion adjuvant are inputted
The combustion chamber of internal combustion engine carries out the basic functional principle that burning is internal combustion engine under certain condition.In order to reach higher burning
The proportion of efficiency, air and fuel is certain, and air is also required to certain pressure input combustion chamber.However, conventional
Design can make the effect of barbecue undesirable when encountering more special behaviour in service, or even open internal combustion engine can not normally
It is dynamic.For example, on startup, engine is since admission pressure is insufficient and temperature is lower, so that opening for lower temperature in high altitude localities
It moves relatively difficult.In addition, load variation is fast, and engine charge pressure is unable to quick response, passes through in non-rice habitats machine work
The input air pressure of internal combustion engine is increased and then improves engine operating efficiency.Although being provided with booster in gas handling system,
However, booster has the characteristic of inertia lag, boost pressure cannot be rapidly improved, the market demand is unable to satisfy.
The application is to provide the internal combustion engine and its air assist system that can overcome at least partly above-mentioned disadvantage.
Summary of the invention
The purpose of the present invention is to provide a kind of internal combustion engine and its air assist system with good starting performance.
The present invention provides a kind of combustion air auxiliary system, for the combustion chamber of the internal combustion engine with main gas handling system
Gas supply, including gas source, main valve, the conduit for connecting by inlet end the gas source and main valve, the conduit has outlet side, described
Outlet side is connected to the satellite interface of the manifold of the combustion chamber of the internal combustion engine.
A kind of internal combustion engine, including combustion chamber and main gas handling system are provided with manifold on the combustion chamber of the internal combustion engine, described
Main gas handling system has main pipe, wherein the internal combustion engine further includes air assist system as described above.
Conduit of the invention is connected to the combustion chamber or its manifold, rapid using the supercharging effect of air assist system.
Detailed description of the invention
Exemplary embodiment of the present invention is described in detail below with reference to the accompanying drawings, it should be understood that described below
The examples are only for explaining the invention, without being restricted to the scope of the present invention, appended attached drawing wherein:
The structural schematic diagram of one embodiment of a kind of internal combustion engine Fig. 1 of the invention, wherein mainly showing the master of internal combustion engine
Gas handling system and auxiliary air system part.
Specific embodiment
In different drawings, the same or similar component is presented with like reference characters.
It should be appreciated that attached drawing is only used for, the present invention will be described, wherein the size, proportionate relationship of component and component
Number is not as limitation of the present invention.
Refering to Figure 1, the internal combustion engine of one embodiment of the present of invention is diesel engine.Internal combustion engine includes combustion chamber
200, main gas handling system 300 and auxiliary air system 100 are connected to manifold 201 on the combustion chamber 200.Main gas handling system 300 includes
The booster 302 for having main pipe 301 and being set on main pipe 301, cooler 303, main filter 305 and primary heater 304.
In the present embodiment, the air pressure of the air inlet in main gas handling system 300 is 0.6-1 atmospheric pressure.The main filter
305 can be by the contaminant filter of air, to provide clean air into combustion chamber 200.The booster 302 is for inciting somebody to action
The autonomous filtered air of filter 23 05 is further forced into higher than atmospheric pressure to about 3 atmospheric pressure.In main pipe 301
The cooler 303 of upper setting is the primary heater 304 being arranged on main pipe 301 for the cooling air after pressurization
It is that the temperature that air is heated to needing constantly is reached into quick start engine in engine cold state starting.In the present embodiment,
One end of main pipe 301 is connected directly with manifold 201 by main interface (not labeled), so that air is introduced directly into the burning
Room 200, however in other embodiments, main pipe 301 also can according to need importing and the separately positioned main discrimination of manifold 201
Guard system.
Please continue to refer to shown in Fig. 1, the combustion air auxiliary system 100 of one embodiment of the present of invention includes gas source
10, gas source 10 is exported gas by the inlet end 31 of conduit 30, subsequently into air filter 60.In the other end, conduit 30
Outlet side 32 by satellite interface 202, import the manifold 201 of combustion chamber 200.It is in the present embodiment gas tank on gas source 10,
Its pressure is set as 5-10 bars, and pressure sensor 80 and relief valve 70 are provided on gas source 10.In the present embodiment, air auxiliary
System 100 is controlled by ECU (electronic control unit, not shown), and detecting air pressure in pressure sensor 80 is more than setting
When value, relief valve 70 can be opened, to control the pressure of gas source 10.Main valve 20 is provided on conduit 30, in the present embodiment,
The main valve 20 often closes.Time valve 40 is accessed in 20 downstream of main valve, the secondary valve 40 is normally opened.And it is set between gas source 10 and main valve 20
It is equipped with air filter 60, to filter from the output of gas source 10.Also there is heater 50 in the downstream of conduit 30, when needed
The air in air assist system can be heated by heater 50.In the present embodiment, the heater 50 is preferred
It, certainly in other embodiments can also other setting positions before being provided with outlet side 32.
In practical applications, if in a normal operating conditions, internal combustion engine can be made using only main gas handling system 300
It works normally.However, if it is in the cold start-up under low-temperature condition, at this point, starting air auxiliary system under control of the ecu
System 100 opens main valve 20, and starts heater 50, and about 5-10 bars of high pressure gas is poured in combustion chamber 200, preheating is provided
Warming-up.Because outlet side 32 is connected to manifold 201, rather than it is connected to main pipe 301, so inactive in starter
Combustion chamber is preheated, quick start engine.The case where if it is load sudden change is encountered during the work time, conventional mechanical increasing
Depressor has the characteristic of inertia lag, cannot rapidly improve boost pressure.When ECU detects that load sudden change leads to admission pressure not
When sufficient, the main valve 20 that ECU controls combustion air auxiliary system 100 is opened, and about 5-10 bars of high pressure gas is poured combustion chamber
It is interior, it is further provided boost pressure because outlet side 32 is connected to manifold 201, rather than is connected to main pipe 301, reduces
The decline of pressure caused by as gas mixing, admission pressure needed for quickly improving improve the dynamic response of engine.Secondary valve 40
As back-up safety valve, when 20 failure of main valve, secondary valve 40 turns off movement, guarantees the normal operation of internal combustion engine.
In conclusion the starting performance of internal combustion engine can be enhanced in combustion air auxiliary system of the invention, it is prominent in load
When change, boost pressure can be quickly provided.The conduit of air assist system is directly communicates with manifold or combustion chamber, assists air
Reaction it is rapider.
Only in conjunction with the most practical preferred embodiment being presently considered, present invention is described above, it is to be understood that
The above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the ordinary skill people of the art
The variations, modifications, additions or substitutions that member is made within the essential scope of the present invention, also should belong to protection scope of the present invention.
Claims (10)
1. a kind of combustion air auxiliary system (100), for being supplied to the combustion chamber of the internal combustion engine with main gas handling system (200)
Gas, including gas source (10), main valve (20), the conduit (30) for connecting by inlet end (31) gas source (10) and main valve (20),
It is characterized in that, the conduit (30) has outlet side (32), the outlet side (32) is connected to the combustion chamber of the internal combustion engine
(200) satellite interface (202) of manifold (201).
2. combustion air auxiliary system (100) as described in claim 1, which is characterized in that the main gas handling system (300)
With main pipe (301), the main pipe (301) is connected to the main interface on the manifold (201).
3. such as claim combustion air auxiliary system (100) as described in claim 1, which is characterized in that the master into
Gas system (300) has main pipe (301), and the main pipe (301) is connected to the combustion chamber (200), with the manifold
(201) independent main manifold.
4. combustion air auxiliary system (100) as described in claim 1, which is characterized in that the air of the gas source (10)
Pressure is 5-10 bars.
5. combustion air auxiliary system (100) as described in claim 1, which is characterized in that the internal combustion engine is in diesel oil
Combustion engine, the diesel engine are the diesel engine with common rail system.
6. such as combustion air auxiliary system (100) described in any one of claim 1 to 5, which is characterized in that the internal combustion engine
Air assist system (100) further comprises the secondary valve (40) being connected on conduit (30), and the secondary valve (40) is normally opened.
7. such as combustion air auxiliary system (100) described in any one of claim 1 to 5, which is characterized in that the conduit
(30) having heaters (50) are set on, are provided with air filter (60) on the conduit (30).
8. such as combustion air auxiliary system (100) described in any one of claim 1 to 5, which is characterized in that the gas source
(10) it being connected on relief valve (70), is connected with pressure sensor (80) on the gas source (10), the gas source (10) is gas tank,
The combustion air auxiliary system (100) is controlled by electronic control unit, and the main valve (20) is often closed.
9. a kind of internal combustion engine, including combustion chamber (200) and main gas handling system (300), set on the fuel oil room (200) of the internal combustion engine
It is equipped with manifold (201), the main gas handling system (300) has main pipe (301), which is characterized in that the internal combustion engine further includes
Air assist system (100) as claimed in any one of claims 1 to 8.
10. internal combustion engine as claimed in claim 9, which is characterized in that the air pressure in the main gas handling system (300) is 30 bars,
The main gas handling system (300) further includes booster (302), cooler (303), primary heater (304), main filter (305).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542515.8A CN109209694A (en) | 2017-07-05 | 2017-07-05 | Internal combustion engine and its air assist system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542515.8A CN109209694A (en) | 2017-07-05 | 2017-07-05 | Internal combustion engine and its air assist system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209694A true CN109209694A (en) | 2019-01-15 |
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ID=64993541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710542515.8A Pending CN109209694A (en) | 2017-07-05 | 2017-07-05 | Internal combustion engine and its air assist system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209694A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632370A (en) * | 2015-02-12 | 2015-05-20 | 广西玉柴机器股份有限公司 | Transient acceleration lifting system of supercharged engine |
| CN204572285U (en) * | 2015-05-12 | 2015-08-19 | 广西玉柴机器股份有限公司 | Diesel engine intake bucking-out system |
| CN205918506U (en) * | 2016-08-31 | 2017-02-01 | 广西玉柴机器股份有限公司 | Device that improves turbosupercharged engine low -speed dynamic property and accelerate response |
| CN106555710A (en) * | 2015-09-29 | 2017-04-05 | 长城汽车股份有限公司 | Electromotor gas supply control method |
-
2017
- 2017-07-05 CN CN201710542515.8A patent/CN109209694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632370A (en) * | 2015-02-12 | 2015-05-20 | 广西玉柴机器股份有限公司 | Transient acceleration lifting system of supercharged engine |
| CN204572285U (en) * | 2015-05-12 | 2015-08-19 | 广西玉柴机器股份有限公司 | Diesel engine intake bucking-out system |
| CN106555710A (en) * | 2015-09-29 | 2017-04-05 | 长城汽车股份有限公司 | Electromotor gas supply control method |
| CN205918506U (en) * | 2016-08-31 | 2017-02-01 | 广西玉柴机器股份有限公司 | Device that improves turbosupercharged engine low -speed dynamic property and accelerate response |
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Application publication date: 20190115 |
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| RJ01 | Rejection of invention patent application after publication |