CN108644033A - A kind of multi-chamber pulsed gas feedway - Google Patents
A kind of multi-chamber pulsed gas feedway Download PDFInfo
- Publication number
- CN108644033A CN108644033A CN201810393608.3A CN201810393608A CN108644033A CN 108644033 A CN108644033 A CN 108644033A CN 201810393608 A CN201810393608 A CN 201810393608A CN 108644033 A CN108644033 A CN 108644033A
- Authority
- CN
- China
- Prior art keywords
- chamber
- cushion chamber
- gas
- cushion
- cylinder
- 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.)
- Pending
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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0278—Port fuel injectors for single or multipoint injection into the air intake system
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of multi-chamber pulsed gas feedways, including cylinder, it further include buffer gear, the buffer gear includes throttling set, the throttling set is connected to gas feeder, and the buffer gear connects cylinder, and buffer gear includes several cushion chambers, the cushion chamber quantity is no less than two and is not more than number of engine cylinders, and each cushion chamber is at least connected with a cylinder.Using the above structure, as long as the volume of throttling set flow, common rail pipe and relay pipe calculates proper, inflationtime foreshortens to before jet next time, and the phenomenon that robbing gas can be eliminated completely, and each outlet gas pressure and flow are highly stable.Clearly, each cylinder working harmony is obviously improved effect when being sprayed for gas engine multi-point gas, and there is no rob gas phenomenon to occur.
Description
Technical field
The present invention relates to gas engine equipment technical field, specifically a kind of multi-chamber pulsed gas supply dress
It sets.
Background technology
The uniformity that various multi-cylinder internal combustion engines supply fuel between each cylinder, which has, compares strict requirements.
If each cylinder fuel supply differs greatly, the Rapid Damage of engine will necessarily be caused.The fuel of liquid fuel internal combustion engines is supplied
System pressure is higher, volume of fuel energy-intensive, and each cylinder fuel injection volume is less, and fuel injection causes common rail system pressure
Vibration frequency is very high, significantly larger than fuel injection period.Pressure oscillation in common rail pipe can quickly be made up by energy storage equipment
And absorption.Therefore, the pressure before the injection of each cylinder fuel in common rail pipe is almost the same, basic guarantee the one of each cylinder fuel emitted dose
Cause property.
But various gaseous fuel (such as natural gas, oil gas, coal bed gas, device in Gas, biogas) engines with
Liquid fuel motor is compared, and fuel state of supply differs greatly.The fuel gas supply pressure of general gas flow engine fuel is very low,
It is excessive that combustion gas common-rail system and fuel gas supply pipeline are limited the volume for being also impossible to do by space and volume, and combustion gas itself
Volume energy density it is relatively low, each cylinder combustion gas volume needs amount is larger, causes the pressure oscillation in combustion gas common rail pipe larger.Together
When, combustion gas common rail intraductal atmospheric pressure is relatively low, and the frequency of gaseous-pressure fluctuation is also relatively low.Therefore, fuel gas injection echo is easy to
Vibration and surge are generated in common rail pipe, are caused stress unstable.Gaseous-pressure fluctuation and variation caused by this pressure transient
The uniformity of each cylinder fuel gas injection amount will be directly affected, " robbing gas " phenomenon occurs, it is unbalanced so as to cause each cylinder working of engine,
And finally make engine job insecurity or badly damaged.
How to ensure that the uniformity of each cylinder fuel gas injection amount is the combustion gas of intake manifold injection combustion gas at this stage to greatest extent
The greatest problem that engine faces.
Invention content
The present invention is exactly to provide a kind of multi-chamber pulsed gas supply dress to solve deficiencies of the prior art
Set, if throttling set flow, common rail pipe and relay pipe volume calculate it is proper, inflationtime foreshorten to next time jet it
Before, the phenomenon that robbing gas, can be eliminated completely, and each outlet gas pressure and flow are highly stable.It is sprayed for gas engine multi-point gas
Clearly, each cylinder working harmony is obviously improved effect when penetrating, and there is no rob gas phenomenon to occur.
The technical scheme adopted by the invention to solve the technical problem is that：
A kind of multi-chamber pulsed gas feedway, including cylinder, further include buffer gear, the buffer gear
Including throttling set, the throttling set is connected to gas feeder, and the buffer gear connects cylinder, described slow
There are several cushion chambers in punch mechanism.
Further include the fuel gas injection valve being located in cylinder air inlet pipe, relaying chamber, the relaying chamber include air inlet,
Gas outlet, cavity, tracheae, the air inlet and gas outlet are located on cavity；The cushion chamber is equipped with delivery outlet, the delivery outlet
Connect fuel gas injection valve；The throttling set is connect with gas outlet by tracheae.
Cushion chamber quantity in the buffer gear is no less than two and is not more than number of engine cylinders, each buffering
Chamber is at least connected with a cylinder, and the cylinder number is 6, and the cushion chamber quantity is 2-6.
The cushion chamber quantity is 2, including cushion chamber I, cushion chamber II, and the cushion chamber I is set there are three delivery outlet, is delayed
Three delivery outlets for rushing chamber I are separately connected three mutual discontinuous fuel gas injection valves of jet sequence, and the cushion chambers II are equipped with
Three delivery outlets, the remaining jet sequence of II 3 delivery outlet connections of cushion chamber mutually discontinuous fuel gas injection valve.
The cushion chamber quantity is 3, and each cushion chamber is all provided with there are two delivery outlet, two delivery outlets of each cushion chamber
It is correspondingly connected with two jet sequences mutually discontinuous fuel gas injection valve.
The cushion chamber quantity is 6, and each cushion chamber is set there are one delivery outlet, and each delivery outlet is all connected with a combustion gas
Injection valve.
The throttling set is throttle valve or throttle orifice.
The beneficial effects of the invention are as follows：
1, using the above structure, as long as the volume of throttling set flow, common rail pipe and relay pipe calculates proper, inflationtime
The phenomenon that foreshortening to before jet next time, robbing gas can be eliminated completely, and each outlet gas pressure and flow are highly stable.For firing
Clearly, each cylinder working harmony is obviously improved effect when gas engine multi-point gas is sprayed, and there is no rob gas phenomenon to occur.
2, six cylinder engine jet sequence is 1-5-3-6-2-4 by taking two cushion chambers of six cylinder engine as an example, 1,3,2 cylinders
Fuel gas injection valve be the mutually discontinuous fuel gas injection valve of jet sequence, cushion chamber I connection 1,3,2, cushion chamber II connection 5,
6、4.For cushion chamber I in this way after 1 cylinder fuel gas injection valve has sprayed, cushion chamber II is 5 cylinders for combustion gas, simultaneous buffering chamber I
Plenum in this gap, by the fuel gas injection valve whiff pressure that cylinder 3 of full up foot has been calculated.It ensure that each cylinder
The uniformity of jet amount.
3, when using three cushion chambers, cylinder is divided into 1 and 6 one group, and 5 and 2 one groups, 3 and 4 one groups, three buffer
Chamber is separately connected one group, and after 1 fuel gas injection valve jet of cylinder, corresponding cushion chamber carrys out plenum there are two oil spout gap,
So that 6 fuel gas injection valve jet air pressure of cylinder is more stablized.Using cushion chamber correspond to cylinder fuel gas injection valve when
It waits, a cushion chamber gas-filled gap is longer, fully meets cylinder gas supply.
4, it is supplied to cushion chamber using relaying chamber, improves the stability of air supply system, also ensure the gas of cushion chamber
Body supply.
Description of the drawings
Fig. 1 is the view that present invention relaying chamber is connected with cushion chamber；
Fig. 2 is the view that inventive engine is connected with cushion chamber.
In figure：1- relays chamber, 2- buffer gears, 3- cylinders, 4- air inlet pipe, 5- fuel gas injection valves, 11- air inlets
Mouthful, 12- cavitys, the gas outlets 13-, 14- tracheaes, 21- throttling sets, 22- cushion chambers I, 23- cushion chambers II, 24- delivery outlets.
Specific implementation mode
For a better understanding of the present invention, embodiments of the present invention are explained in detail below in conjunction with the accompanying drawings.
Embodiment one：
As shown in Figure 1 to Figure 2, a kind of multi-chamber pulsed gas feedway, including cylinder 3, are located at engine
Fuel gas injection valve 5, relaying chamber 1 in 3 air inlet pipe 4 of cylinder, relaying chamber 1 is used for ensureing slow as tolerance when air demand is big
Punching, the buffer gear 2 include throttling set 21, are connected to inside throttling set 21 and cushion chamber, throttling set 21 is supplied with combustion gas
It is connected to device, there are two types of selections for feeder, the first is that relaying chamber 1 is connected between supply air line and cushion chamber, is ensured
Tolerance buffers, and another kind is to cancel relaying chamber 1, and the throttling set 21 of cushion chamber is directly connected to the pipeline of feeder, and this one
As be to supply the engine that air pressure is very big or gas demand is small.
The present invention is applied to the engine of two cylinders and two cylinders or more, and buffer gear 2 connects cylinder 3, the buffering
There are several cushion chambers, the cushion chamber quantity to be no less than two and be not more than 3 quantity of cylinder in mechanism 2, it is each described slow
It rushes chamber and is at least connected with a cylinder 3.Ensure that cushion chamber quantity reaches the mesh for the uniformity for controlling each cylinder fuel gas injection amount
's.
When using installation relaying 1 scheme of chamber before cushion chamber, the relaying chamber 1 described in us includes air inlet 11, goes out
Gas port 13, cavity 12, tracheae 14, the air inlet 11 and gas outlet 13 are located on cavity 12；The cushion chamber is equipped with delivery outlet
24, the delivery outlet 24 connects fuel gas injection valve 5；The throttling set 21 is connect with gas outlet 13 by tracheae 14, throttling dress
It is throttle valve or throttle orifice to set 21, and throttling set 21 can block the route of transmission of stress echo
We are by taking 6 Cylinder engines as an example, and cushion chamber quantity is 2-6 at this time.When cushion chamber quantity is two, Wo Mending
Adopted two cushion chambers are respectively cushion chamber I 22, cushion chamber II 23, and cushion chamber I 22 is set there are three delivery outlet 24, cushion chamber I 22
Three delivery outlets 24 are separately connected three jet sequences mutually discontinuous fuel gas injection valve 5, the cushion chamber II 23 and are equipped with three
A delivery outlet 24, II 23 3 delivery outlets 24 of cushion chamber connect remaining jet sequence mutually discontinuous fuel gas injection valve 5.We
Use six cylinder engine jet sequence for 1-5-3-6-2-4, the fuel gas injection valve 5 of 1,3,2 cylinders is that jet sequence is mutually discontinuous
Fuel gas injection valve 5, cushion chamber I 22 connect 1,3,2 cylinders, cushion chamber II 23 connect 5,6,4 cylinders.Cushion chamber I 22 is in 1 cylinder in this way
After fuel gas injection valve 5 has sprayed, cushion chamber II 23 is 5 cylinders for combustion gas, the plenum in this gap of simultaneous buffering chamber I 22,
Thus reduce the pressure oscillation frequency in each cushion chamber, the time of pressure stability increases one times.And due to throttling set
21 blocking is made, and the pressure oscillation of cushion chamber is independent of each other.
The setting of 2 separate chamber volume of buffer gear is less than 5% setting, combustion according to fuel gas injection back cavity intraventricular pressure fluctuation
Gas jet amount and injection pulse width depend on power per cylinder.
The cushion chamber quantity is 3, and it is mutual that two delivery outlets 24 of each cushion chamber are correspondingly connected with two jets sequences
Discontinuous fuel gas injection valve 5.When three cushion chambers, cylinder is divided into 1 and 6 one group, 5 and 2 one groups, 3 and 4 one groups, three
Cushion chamber is separately connected one group, and after 15 jet of fuel gas injection valve of cylinder, there are two oil spout gaps for corresponding cushion chamber to inflate
Supercharging so that 6 fuel gas injection valve of cylinder, 5 jet air pressure is more stablized.When cushion chamber quantity is 6, each cushion chamber is equipped with one
A delivery outlet 24, each delivery outlet 24 are all connected with a fuel gas injection valve 5.6 cylinders individually connect independent cushion chamber, pressure
Power stabilization time will increase by 500.Existing cushion chamber is usually that common rail pipeline is divided into separate chamber and is transformed, and can also be given up
Old-fashioned common rail pipe, using individually designed new cushion chamber.
We verify the feasibility of the present invention with the six cylinder engine of two cushion chambers below：
As shown in one attached drawing of embodiment, in fuel gas injection, the pressure in cushion chamber is by P0Quickly it is down to P1, then,
Pipeline and throttling set 21 start to inflate for cushion chamber.Inflationtime is calculated in accordance with the following methods：
Formula 2：
In formula：T-inflationtime (s)；
K-isentropic index；
P0- initial absolute pressure (MPa)；
P*- critical absolute pressure (MPa)；
P1- gas injection or the pressure (MPa) at end of a period moment of deflating；Wherein：
In formula：τ-inflation/deflation time constant (s)；
V-separate chamber volume (L)；
The room temperature (K) that K-is indicated with thermodynamic temperature；
S-is filling channel effective sectional area (mm2)；
One attached drawing of embodiment
In figure：
For velocity of sound area breathing characteristic；
For subsonic area breathing characteristic；
Result of calculation judges：Work as tinjWhen >=t, meet design condition.
Embodiment two：
Cylinder number is generally 2,3,4,6,8,12,16, and general two cylinder is corresponded to using double buffering chamber
Two cylinders.Present embodiment we mainly describe twelve-cylinder engine using the present invention when scheme, since number of cylinders is more, engine
Space limitation (cushion chamber that two big volume may be used when space is larger corresponds to 12 cylinders), does not use two bufferings
Chamber can be started when using four or six cushion chambers according to the six-in-line described in two embodiments one
Machine is handled, and can also be that each cylinder individually divides cushion chamber according to actual conditions.The engine of other numbers of cylinders
Cushion chamber quantity can be selected as the case may be.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (7)
1. a kind of multi-chamber pulsed gas feedway, including cylinder, characterized in that further include buffer gear, it is described
Buffer gear includes throttling set, and the throttling set is connected to gas feeder, and the buffer gear connects engine air
Cylinder has several cushion chambers in the buffer gear.
2. a kind of multi-chamber pulsed gas feedway according to claim 1, characterized in that further include being located at engine
Fuel gas injection valve on cylinder intake pipe, relaying chamber, the relaying chamber include air inlet, gas outlet, cavity, tracheae, it is described into
Gas port and gas outlet are located on cavity；The cushion chamber is equipped with delivery outlet, and the delivery outlet connects fuel gas injection valve；The throttling
Device is connect with gas outlet by tracheae.
3. a kind of multi-chamber pulsed gas feedway according to claim 1, characterized in that in the buffer gear
Cushion chamber quantity is no less than two and is not more than number of engine cylinders, and each cushion chamber is at least connected with an engine air
Cylinder, the cylinder number are 6, and the cushion chamber quantity is 2-6.
4. a kind of multi-chamber pulsed gas feedway according to claim 3, characterized in that the cushion chamber quantity is
2, including cushion chamber I, cushion chamber II, the cushion chamber I is set there are three delivery outlet, and three delivery outlets of cushion chamber I connect respectively
Connect three jets sequence mutually discontinuous fuel gas injection valves, the cushion chamber II sets that there are three delivery outlet, cushion chambers II 3
The remaining jet sequence of delivery outlet connection mutually discontinuous fuel gas injection valve.
5. a kind of multi-chamber pulsed gas feedway according to claim 3, characterized in that the cushion chamber quantity is
3, each cushion chamber is all provided with there are two delivery outlet, and it is mutual that two delivery outlets of each cushion chamber are correspondingly connected with two jets sequences
Discontinuous fuel gas injection valve.
6. a kind of multi-chamber pulsed gas feedway according to claim 3, characterized in that the cushion chamber quantity is
6, each cushion chamber is set there are one delivery outlet, and each delivery outlet is all connected with a fuel gas injection valve.
7. a kind of multi-chamber pulsed gas feedway according to claim 1, characterized in that the throttling set is section
Flow valve or throttle orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393608.3A CN108644033A (en) | 2018-04-27 | 2018-04-27 | A kind of multi-chamber pulsed gas feedway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393608.3A CN108644033A (en) | 2018-04-27 | 2018-04-27 | A kind of multi-chamber pulsed gas feedway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644033A true CN108644033A (en) | 2018-10-12 |
Family
ID=63747899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810393608.3A Pending CN108644033A (en) | 2018-04-27 | 2018-04-27 | A kind of multi-chamber pulsed gas feedway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644033A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203702377U (en) * | 2014-03-04 | 2014-07-09 | 广西玉柴机器股份有限公司 | High-power LNG engine gas supply system |
| CN104343593A (en) * | 2014-09-02 | 2015-02-11 | 哈尔滨工程大学 | Gas inlet device of gas fuel engines and fuel gas injection control method |
| CN105840372A (en) * | 2016-05-25 | 2016-08-10 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | System and method for controlling uniformity of gas injection amount of natural gas engines for vehicles |
| CN107110075A (en) * | 2014-11-25 | 2017-08-29 | 爱信精机株式会社 | The inlet duct of internal combustion engine |
| CN208380717U (en) * | 2018-04-27 | 2019-01-15 | 济南天易迅达电气科技有限公司 | A kind of novel gas feeder for preventing air pulsing |
-
2018
- 2018-04-27 CN CN201810393608.3A patent/CN108644033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203702377U (en) * | 2014-03-04 | 2014-07-09 | 广西玉柴机器股份有限公司 | High-power LNG engine gas supply system |
| CN104343593A (en) * | 2014-09-02 | 2015-02-11 | 哈尔滨工程大学 | Gas inlet device of gas fuel engines and fuel gas injection control method |
| CN107110075A (en) * | 2014-11-25 | 2017-08-29 | 爱信精机株式会社 | The inlet duct of internal combustion engine |
| CN105840372A (en) * | 2016-05-25 | 2016-08-10 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | System and method for controlling uniformity of gas injection amount of natural gas engines for vehicles |
| CN208380717U (en) * | 2018-04-27 | 2019-01-15 | 济南天易迅达电气科技有限公司 | A kind of novel gas feeder for preventing air pulsing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2016027263A (en) | Fuel valve for pilot oil injection and for injecting gaseous fuel into combustion chamber of self-igniting internal combustion engine | |
| GB2044353A (en) | Method and apparatus for conveying and controlling the bypass air stream of a supercharged internal combustion engine | |
| CN202745952U (en) | Low-entropy mixed-combustion gas liquid injection air-powered engine | |
| JP5315342B2 (en) | Internal combustion engine | |
| CN103890371A (en) | Common rail fuel injection system | |
| CN208380717U (en) | A kind of novel gas feeder for preventing air pulsing | |
| CN102562293B (en) | Three valve gas compressors | |
| CN108644033A (en) | A kind of multi-chamber pulsed gas feedway | |
| WO2024088008A1 (en) | Dual-fuel coordinated injection system and ship | |
| CN102062010A (en) | High-pressure common rail segmental injection pressure control system of diesel engine | |
| IT202000005683A1 (en) | FUEL INJECTION SYSTEM FOR A COMMAND-IGNITION INTERNAL COMBUSTION ENGINE AND RELEVANT CONTROL METHOD | |
| CN107061010A (en) | A kind of rocket based combined cycle engine structure changes air intake duct | |
| CN106523198A (en) | Compulsory waste gas ejecting system capable of inhibiting preignition and detonation | |
| CN102979612A (en) | Fan two-stroke engine | |
| CN108915903A (en) | A kind of gas engine gas supply system | |
| US9828908B2 (en) | Device for internal cooling and pressurization of rotary engine | |
| KR102201716B1 (en) | Fuel economy and emission reduction system of internal combustion engine | |
| JPH1144276A (en) | Fuel injection device | |
| CN111305984A (en) | In-line large multi-cylinder diesel engine diesel oil supply system for reducing pressure fluctuation | |
| CN103321806A (en) | Pressure wave damping type fuel system | |
| GB2471840A (en) | Supplying pressurised EGR in an i.c. engine | |
| KR20150084687A (en) | Gaseous fuel feeding system | |
| CN204755107U (en) | Gaseous feeding device of internal -combustion engine | |
| CN206681893U (en) | A kind of combined type shared-rail oil jetting pump pump cover | |
| CN205225513U (en) | Subassembly and fuel injection system admit air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |