CN105863920B - A kind of high-pressure natural gas injector caliberating device and its method - Google Patents
A kind of high-pressure natural gas injector caliberating device and its method Download PDFInfo
- Publication number
- CN105863920B CN105863920B CN201610202122.8A CN201610202122A CN105863920B CN 105863920 B CN105863920 B CN 105863920B CN 201610202122 A CN201610202122 A CN 201610202122A CN 105863920 B CN105863920 B CN 105863920B
- Authority
- CN
- China
- Prior art keywords
- natural gas
- pressure
- injector
- gas injector
- injection
- 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.)
- Expired - Fee Related
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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention belongs to a kind of high-pressure natural gas injector caliberating device and its method of internal combustion engine research field, including computer, injector control system ECU, natural gas injector, calibration component and air supply system；One end of natural gas injector is connected by high pressure flexible metallic conduit with the natural gas tank of air supply system, the other end is installed on by fixture on calibration component, caliberating device integral sealing, ECU controls the switch of natural gas injector, the present invention is worked in certain time the change value of pressure of gas in device by measuring natural gas injector, and then the gas flow of the injector single injection event is calculated, the exploitation for natural gas engine provides important experimental data；Calibration component in present invention design, can Optional assembling, flexibility be strong according to demand using a kind of knockdown method；The high-pressure natural gas caliberating device that the present invention designs passes through rational structure design and accurate processing so that the air-tightness of device, safety are guaranteed.
Description
Technical field
The invention belongs to internal combustion engine research fields, and in particular to a kind of high-pressure natural gas injector caliberating device and its side
Method.
Background technology
With global energy crisis and environmental pollution getting worse.Solving the problems, such as the effective ways of exhaust pollution of diesel engines is
Use alternative fuel, including biomass fuel, LPG and natural gas etc..For shale gas as a kind of natural gas, it can solve the mankind
At least energy problem of future 50 years.It affixes one's name to and estimates according to american energy information, the reserves of Chinese shale gas are also bigger than the U.S., account for about complete
The 20% of ball gross reserves, ranks the first in the world.It can be seen that natural gas will be applied great development prospect in future.
Natural gas engine has apparent economic benefit and excellent environmental-protecting performance, becomes lot of domestic and foreign and grinds
Study carefully the focus of focus of attention.It needs much to be tested during engine research, development, wherein the calibration of natural gas injector is just
It is one of most important experiment.In order to more precisely, more easily measure the emitted dose of injector, lot of domestic and international company and scientific research
Many different test methods and instrument have been invented based on different principle by mechanism.The gas flowmeter of German Ritter companies production,
Directly the gas in pipeline can be measured.The flowmeter is widely used in low-pressure gas pipeline, but pressure is reached
To the high pressure gas of 10-30MPa, it is necessary to use special flowmeter, cost is high.Application No. is 201510528149.1
Patent propose a kind of adjustable gas flow scaling method of temperature, pressure, this method passes through multi-stage pressure regulating device, Yi Jijia
Hot device and condenser realize the continuously adjustable of pressure and temp, and measure the integrated flux under each operating mode respectively, to realize difference
Gas flow calibration under temperature, pressure, gas flow mark of this method suitable for industrial low voltage constant gas transmission pipeline
It is fixed, the intermittent jet stream of spraying high-pressure gas device can not be demarcated.In document (FUEL, 160 (2015) 24-34),
ImanErfan et al. is in the experimental study of natural gas injection jet characteristics, by the way that natural gas tank is positioned over an electronics day
On flat, the Mass lost amount of natural gas before and after experiment is measured, and according to injecting times, calculate the single spray of natural gas injector
The amount of penetrating, this method is easy to operate, but error is big, and needs high-precision electronic balance.Therefore, natural gas engine is not being influenced
In the case of research and development process, a kind of low cost, high efficiency, more accurate and easily gas ejector scaling method and dress are designed
It is necessary to put.
Invention content
It, can the purpose of the present invention is providing a kind of high-pressure natural gas injector caliberating device and its method regarding to the issue above
Accurately the emitted dose of natural gas injector is demarcated with simpler.
The technical scheme is that：A kind of high-pressure natural gas injector caliberating device is controlled including computer, injector
System ECU, natural gas injector, calibration component and air supply system；
It is described calibration component include natural gas injector mounting base, the first three-way piece, hydrostatic column, the second three-way piece,
Second valve, pressure sensor mounting base and first pressure sensor；
One end of the natural gas injector is connect with air supply system, and the other end passes through fixture and the natural gas injector
One end connection of mounting base, the other end of natural gas injector mounting base are connect with the first port of the first three-way piece；Described
The third port of one three-way piece is connected by one end of the second adapter and hydrostatic column, and the other end of hydrostatic column passes through
Third adapter is connect with the first port of second three-way piece, the second port of the second three-way piece by the 4th adapter with
Pressure sensor mounting base connects, and the first pressure sensor is mounted in pressure sensor mounting base, second threeway
The third port of part is connect with one end of the second valve；
The computer is electrically connected with injector control system ECU, the injector control system ECU and natural gas injection
Device is electrically connected, and the computer controls the unlatching of natural gas injector by injector control system ECU and adjusts natural gas
The injection pulse width and injection frequency of injector.
In said program, the air supply system includes natural gas tank, and the natural gas tank passes through pressure duct and the day
One end connection of right gas blowout emitter；It is connected in pressure duct between the natural gas injector and natural gas tank and the second pressure is installed
Force snesor and temperature sensor.
In said program, nitrogen cylinder is further included, the second port of first three-way piece passes through the first adapter and first
One end connection of valve, the other end of first valve are connect by pressure duct with nitrogen cylinder.
In said program, the fixture include the first screw rod, the second screw rod, the first fixture block, the second fixture block, third fixture block,
Third screw rod and the 4th screw rod；First fixture block and the second fixture block are ladder counterpart, and counterpart is mounted on the natural gas
At the card slot of injector, third screw rod is passed through respectively from the side through-hole of counterpart with the 4th screw rod and is fastened by nut；The day
One end of right gas blowout emitter is installed in natural gas injector mounting base, and the third fixture block is placed in natural gas injector mounting base
Below, the first screw rod and the second screw rod be each passed through third fixture block and the first fixture block and the corresponding through-hole of the second fixture block and by
Nut fastens.
A kind of scaling method of high-pressure natural gas injector caliberating device described in basis, includes the following steps：
S1, the high-pressure natural gas injector caliberating device of experiment is installed into connection；
S2, check device air-tightness；
S3, air supply system is opened, the gas pressure in gas pipeline is made to distinguish with the pressure in the hydrostatic column
Reach experiment value；
S4, natural gas injector is controlled to open by computer, starts simultaneously at timing, and record injection certain time Δ t
Afterwards in hydrostatic column pressure value variation delta P；
S5, according to require change experiment condition, repeat S4 in step；
S6, experimental measurements are inputted in computer, calculates natural gas injector single injection event under different operating modes
Emitted dose.
In said program, the step S2 is specially：Second valve is closed, opens the first valve, while open nitrogen
Gas cylinder, nitrogen are entered by pressure duct in hydrostatic column, make the pressure value in hydrostatic column up under being kept for certain time not
Drop, i.e., air-tightness is good.
In said program, the step S4 is specially：The computer control injector control system ECU adjusts natural gas
The injection pulse width and injection frequency of injector start timing, monitoring first pressure sensing in the moment for opening natural gas injector
The reading of device and record after five minutes, further according to the initial pressure of first pressure sensor, calculates pressure in hydrostatic column
The variation delta P of value.
In said program, the experiment condition in the step S5 includes：The injection pressure of natural gas injector, injection arteries and veins
Initial pressure, that is, back pressure in wide, injection frequency and hydrostatic column.
In said program, the step S6 is specially：The pressure value in certain time Δ t inner cylinder container is measured in experiment
Variation delta P and gas temperature T, and using water flood measuring device volume V, calculate day in certain time Δ t
The quality m of right gas jet calculates the quality of natural gas of the injector single injection event further according to injecting times.
The beneficial effects of the invention are as follows：Compared with prior art, the present invention is by designing a kind of high-pressure natural gas injector
Caliberating device and its method realize the measurement of natural gas injector single injection amount, and the exploitation for natural gas engine provides
Important experimental data；Calibration component in present invention design, can be arbitrary according to demand using a kind of knockdown method
Assembling, flexibility is strong, as the natural gas injector of different model can select respectively the hydrostatic columns of different size model numbers into
Rower is determined；The high-pressure natural gas injector caliberating device that the present invention designs can bear the high pressure of more than 10MPa by actual measurement,
The calibration of gas ejector is can be not only used for, can be also used for influence of the research environment pressure to injector emitted dose；This hair
The high-pressure natural gas caliberating device of bright design passes through rational structure design and accurate processing so that air-tightness, the peace of device
Full property is guaranteed.
Description of the drawings
Fig. 1 is the structure diagram of an embodiment of the present invention；
Fig. 2 is an embodiment of the present invention device three dimensional structure diagram；
Fig. 3 is an embodiment of the present invention clamp structure schematic diagram；
Fig. 4 is an embodiment of the present invention natural gas injector scaling method flow chart.
In figure：1st, computer；2nd, injector control system ECU；3rd, natural gas injector；4th, fixture；5th, natural gas injection
Device mounting base；6th, the first three-way piece；7th, the first adapter；8th, the first valve；9th, high pressure flexible metallic conduit；10th, the second adapter；
11st, hydrostatic column；12nd, third adapter；13rd, the second three-way piece；14th, pressure sensor mounting base；15th, first pressure passes
Sensor；16th, the 4th adapter；17th, the second valve；18th, second pressure sensor；19th, temperature sensor；20th, nitrogen cylinder；21、
Natural gas tank；22nd, the first screw rod；23rd, the second screw rod；24th, nut；25th, the first fixture block；26th, the second fixture block；27th, third fixture block；
28th, third screw rod；29th, the 4th screw rod.
Specific embodiment
Specific embodiment is described in further detail the present invention below in conjunction with the accompanying drawings, but protection scope of the present invention is simultaneously
It is without being limited thereto.
Fig. 1 and Fig. 2 show a kind of embodiment of high-pressure natural gas injector caliberating device of the present invention, the height
Press natural gas injector caliberating device include computer 1, injector control system ECU2, natural gas injector 3, calibration component,
Air supply system and nitrogen cylinder 20.
The calibration component includes natural gas injector mounting base 5, the first three-way piece 6, hydrostatic column 11, the second threeway
Part 13, the second valve 17, pressure sensor mounting base 14 and first pressure sensor 15.The air supply system includes natural gas
Tank 21.One end of the natural gas injector 3 is connect by high pressure flexible metallic conduit with natural gas tank 21, and the other end passes through fixture 4
It is connect with one end of the natural gas injector mounting base 5, the other end of natural gas injector mounting base 5 passes through screw thread and first
The first port of three-way piece 6 is tightly connected；The second port of first three-way piece 6 passes through the first adapter 7 and the first valve 8
One end be tightly connected, the other end of first valve 8 connect by pressure duct with nitrogen cylinder 20；First three-way piece
6 third port is tightly connected by one end of the second adapter 10 and hydrostatic column 11, the other end of hydrostatic column 11
It is tightly connected by the first port of third adapter 12 and second three-way piece 13, the second port of the second three-way piece 13 is led to
It crosses the 4th adapter 16 to connect with 14 thread seal of pressure sensor mounting base, the first pressure sensor 15 and pressure sensing
Device mounting base 14 is connected by thread seal, and the first pressure sensor 15 describes the pressure in device 11 for detection cylinder
Value, one end of the third port of second three-way piece 13 and the second valve 17 are tightly connected, second valve 17 it is another
End is connect with exhaust pipe, can discharge gas after experiment.
It is connected in pressure duct between the natural gas injector 3 and natural gas tank 21 and second pressure sensor 18 is installed
With temperature sensor 19.The second pressure sensor 18 and temperature sensor 19 are respectively used to detect the natural gas injector
The gas pressure and gas temperature of pressure duct are connected between 3 and natural gas tank 21.
The computer 1 is electrically connected with injector control system ECU2, the injector control system ECU2 and natural gas
Injector 3 is electrically connected, and the computer 1 controls the unlatching of natural gas injector 3 by injector control system ECU2 and adjusts
Save the injection pulse width and injection frequency of natural gas injector 3.
As shown in figure 3, the fixture 4 includes the first screw rod 22, the second screw rod 23, the first fixture block 25, the second fixture block 26, the
Three fixture blocks 27,28 and the 4th screw rod 29 of third screw rod；First fixture block, 25 and second fixture block 26 be ladder counterpart, the day
Right gas blowout emitter 3 is equipped with card slot, is equipped with the notch coordinated with the card slot in the middle part of counterpart, counterpart is installed by the notch
At the card slot of the natural gas injector 3, third screw rod 28 is passed through with the 4th screw rod 29 from the side through-hole of counterpart respectively
One entirety is become by nut fastening；One end of the natural gas injector 3 is installed on natural gas injector mounting base 5
Interior, the third fixture block 27 is placed in below natural gas injector mounting base 5, and the first screw rod 22 is each passed through with the second screw rod 23
Third fixture block 27 and the first fixture block 25 and 26 corresponding through-hole of the second fixture block are simultaneously fastened by nut 24 so that natural gas injector
3 form the entirety of a good seal performance with natural gas injector mounting base 5.
The scaling method of high-pressure natural gas injector caliberating device described in a kind of basis, as shown in figure 4, including following step
Suddenly：
S1, the high-pressure natural gas injector caliberating device of experiment is installed into connection；
S2, check device air-tightness, it is good in air-tightness, it can just carry out next step experiment；
S3, air supply system is opened, monitoring first pressure sensor 15 and second pressure sensor 18 makes in gas pipeline
Gas pressure and the hydrostatic column 11 in pressure respectively reach experiment value；
S4, natural gas injector 3 is controlled to open by computer 1, starts simultaneously at timing, and justified after recording injection five minutes
The variation delta P of 11 pressure values in cylindrical container；
S5, according to require change experiment condition, as the injection pressure of natural gas, injection pulse width, injection frequency, cylinder describe
Initial pressure in device repeats step in S4；
S6, experimental measurements are inputted in computer 1, according to default calculation formula, calculated natural under different operating modes
The emitted dose of 3 single injection event of gas blowout emitter.
The step S2 is specially：Second valve 17 is closed, opens the first valve 8, while open nitrogen cylinder 20, nitrogen
Gas is entered by pressure duct in hydrostatic column 11, and the pressure value in hydrostatic column 11 is made to reach 6MPa, closes the first valve
8, the reading of first pressure sensor 15 is monitored, can keep not declining for ten minutes after stable reading, i.e., air-tightness is good.
The step S4 is specially：The computer 1 controls injector control system ECU2 to adjust natural gas injector 3
Injection pulse width and injection frequency start timing in the moment for opening natural gas injector 3, monitoring first pressure sensor 15, simultaneously
Reading of the record after five minutes, further according to the initial pressure of first pressure sensor 15, calculates pressure in hydrostatic column 11
The variation delta P of value.
Experiment condition in the step S5 includes：The injection pressure of natural gas injector 3, injection pulse width, injection frequency
With the initial pressure in hydrostatic column.
The step S6 is specially：The variable quantity of the pressure value in certain time Δ t inner cylinders container 11 is measured in experiment
The temperature T of Δ P and gas, and using the volume V of water flood measuring device, according to perfect gas formula PV=nRT, obtain
N=(Δ P*V)/RT, R are gas constant, and tabling look-up can obtain；Further according to n=m/M, it is mole of gas to obtain m=n*M, wherein M
Quality, n are the molal quantity of the natural gas injection amount in certain time Δ t, and m is the quality of natural gas injection in certain time Δ t,
M is obtained and then the quality of natural gas of the injector single injection event is calculated according to injecting times.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (9)
1. a kind of high-pressure natural gas injector caliberating device, which is characterized in that including computer (1), injector control system ECU
(2), natural gas injector (3), calibration component and air supply system；
The calibration component includes natural gas injector mounting base (5), the first three-way piece (6), hydrostatic column (11), the two or three
Parts (13), the second valve (17), pressure sensor mounting base (14) and first pressure sensor (15)；
One end of the natural gas injector (3) is connect with air supply system, and the other end passes through fixture (4) and the natural gas injection
One end connection of device mounting base (5), the other end of natural gas injector mounting base (5) and the first port of the first three-way piece (6)
Connection；The third port of first three-way piece (6) is connect by the second adapter (10) with one end of hydrostatic column (11),
The other end of hydrostatic column (11) is connect by third adapter (12) with the first port of second three-way piece (13), the
The second port of two three-way pieces (13) is connect by the 4th adapter (16) with pressure sensor mounting base (14), first pressure
Force snesor (15) is in pressure sensor mounting base (14), third port and the second valve of second three-way piece (13)
One end connection of door (17)；
The computer (1) is electrically connected with injector control system ECU (2), the injector control system ECU (2) with it is natural
Gas blowout emitter (3) is electrically connected, and the computer (1) controls natural gas injector (3) by injector control system ECU (2)
Open and adjust the injection pulse width and injection frequency of natural gas injector (3).
2. high-pressure natural gas injector caliberating device according to claim 1, which is characterized in that the air supply system includes
Natural gas tank (21), the natural gas tank (21) are connect by pressure duct with one end of the natural gas injector (3)；It is described
It is connected in pressure duct between natural gas injector (3) and natural gas tank (21) and second pressure sensor (18) and temperature is installed
Sensor (19).
3. high-pressure natural gas injector caliberating device according to claim 1, which is characterized in that further include nitrogen cylinder
(20), the second port of first three-way piece (6) is connect by the first adapter (7) with one end of the first valve (8), described
The other end of first valve (8) is connect by pressure duct with nitrogen cylinder (20).
4. high-pressure natural gas injector caliberating device according to claim 1, which is characterized in that the fixture (4) includes
First screw rod (22), the second screw rod (23), the first fixture block (25), the second fixture block (26), third fixture block (27), third screw rod (28)
With the 4th screw rod (29)；First fixture block (25) and the second fixture block (26) are ladder counterpart, and counterpart is mounted on the day
At the card slot of right gas blowout emitter (3), third screw rod (28) and the 4th screw rod (29) respectively from the side through-hole of counterpart pass through by
Nut fastens；One end of the natural gas injector (3) is installed in natural gas injector mounting base (5), the third fixture block
(27) it is placed in below natural gas injector mounting base (5), the first screw rod (22) is each passed through third folder with the second screw rod (23)
Block (27) and the first fixture block (25) and the corresponding through-hole of the second fixture block (26) are simultaneously fastened by nut.
A kind of 5. scaling method of high-pressure natural gas injector caliberating device according to claim 1, which is characterized in that packet
Include following steps：
S1, the high-pressure natural gas injector caliberating device of experiment is installed into connection；
S2, check device air-tightness；
S3, air supply system is opened, the gas pressure in gas pipeline is made to distinguish with the pressure in the hydrostatic column (11)
Reach experiment value；
S4, natural gas injector (3) is controlled to open by computer (1), starts simultaneously at timing, and record injection certain time Δ
The variation delta P of hydrostatic column (11) interior pressure value after t；
S5, according to require change experiment condition, repeat S4 in step；
S6, experimental measurements are inputted in computer (1), calculates natural gas injector (3) single injection event under different operating modes
Emitted dose.
6. scaling method according to claim 5, which is characterized in that the step S2 is specially：Close second valve
Door (17) opens the first valve (8), while opens nitrogen cylinder (20), and nitrogen is entered by pressure duct in hydrostatic column (11),
Making the pressure value in hydrostatic column (11), that is, air-tightness is good up to being kept for certain time do not decline.
7. scaling method according to claim 5, which is characterized in that the step S4 is specially：Computer (1) control
Injector control system ECU (2) processed adjusts the injection pulse width and injection frequency of natural gas injector (3), is opening gas spraying
The moment of emitter (3) starts timing, the reading of monitoring first pressure sensor (15) and record after five minutes, further according to first
The initial pressure of pressure sensor (15) calculates the variation delta P of hydrostatic column (11) interior pressure value.
8. scaling method according to claim 5, which is characterized in that the experiment condition in the step S5 includes：Naturally
Initial pressure in the injection pressure of gas blowout emitter (3), injection pulse width, injection frequency and hydrostatic column.
9. scaling method according to claim 5, which is characterized in that the step S6 is specially：A timing is measured in experiment
Between the variation delta P of pressure value and the temperature T of gas in Δ t inner cylinders container (11), and dress is measured using water flood
The volume V put calculates the quality m of natural gas injection in certain time Δ t, and the injector list is calculated further according to injecting times
The quality of natural gas of secondary injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202122.8A CN105863920B (en) | 2016-03-31 | 2016-03-31 | A kind of high-pressure natural gas injector caliberating device and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202122.8A CN105863920B (en) | 2016-03-31 | 2016-03-31 | A kind of high-pressure natural gas injector caliberating device and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105863920A CN105863920A (en) | 2016-08-17 |
| CN105863920B true CN105863920B (en) | 2018-06-26 |
Family
ID=56627874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610202122.8A Expired - Fee Related CN105863920B (en) | 2016-03-31 | 2016-03-31 | A kind of high-pressure natural gas injector caliberating device and its method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863920B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271175A (en) * | 2017-07-24 | 2017-10-20 | 吉林省众鑫汽车装备有限公司 | A kind of detection means and detection method of ammonia metering valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2310458B (en) * | 1995-11-09 | 1998-01-14 | Bosch Gmbh Robert | Fault recognition in an engine fuel supply system |
| CN1584514A (en) * | 2004-06-01 | 2005-02-23 | 上海市公用事业研究所 | Computer gas volume metering method and device for natural gas fuel cylinder of vehicle |
| CN101705884A (en) * | 2009-11-06 | 2010-05-12 | 北京理工大学 | Equipment for calibrating flow rate characteristic of fuel gas nozzle |
| CN103982308A (en) * | 2014-05-06 | 2014-08-13 | 南京盖驰动力科技有限公司 | Control system and control method of oil/gas dual-fuel engine in electronic control oil supply |
| CN105021262A (en) * | 2015-08-25 | 2015-11-04 | 重庆市计量质量检测研究院 | Gas flow calibration method with temperature pressure adjusting capacity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005011855U1 (en) * | 2005-07-28 | 2005-10-20 | Lehnert, Friedrich | Testing device for common-rail-injection system of motor power plant, has flow rate measuring unit/indicating unit removably attached between fuel return port and fuel return pipeline of high-pressure injectors |
-
2016
- 2016-03-31 CN CN201610202122.8A patent/CN105863920B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2310458B (en) * | 1995-11-09 | 1998-01-14 | Bosch Gmbh Robert | Fault recognition in an engine fuel supply system |
| CN1584514A (en) * | 2004-06-01 | 2005-02-23 | 上海市公用事业研究所 | Computer gas volume metering method and device for natural gas fuel cylinder of vehicle |
| CN101705884A (en) * | 2009-11-06 | 2010-05-12 | 北京理工大学 | Equipment for calibrating flow rate characteristic of fuel gas nozzle |
| CN103982308A (en) * | 2014-05-06 | 2014-08-13 | 南京盖驰动力科技有限公司 | Control system and control method of oil/gas dual-fuel engine in electronic control oil supply |
| CN105021262A (en) * | 2015-08-25 | 2015-11-04 | 重庆市计量质量检测研究院 | Gas flow calibration method with temperature pressure adjusting capacity |
Non-Patent Citations (1)
| Title |
|---|
| 用音速喷嘴系统在实际流率下检定涡轮流量计;刘庆瑞等;《国外油田工程》;19920229;第40-45页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105863920A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101532910B (en) | Acceleration performance evaluation test method and test apparatus of turbo-charger | |
| US9354220B2 (en) | Engine system having fuel quality sensor | |
| EP2933464A1 (en) | Natural gas quality sensor and method for using the same | |
| CN2909257Y (en) | High temp, high pressure intelligent expansion performance investigator | |
| Konovalov et al. | Determination of hydraulic resistance of the aerothermopressor for gas turbine cyclic air cooling | |
| CN110425189B (en) | Ultrahigh-speed turbine pump and overflow valve matching test device | |
| CN105043927B (en) | It is a kind of can accurate pressure control gas absorption analysis method and device | |
| CN105863920B (en) | A kind of high-pressure natural gas injector caliberating device and its method | |
| CN108317032A (en) | A kind of experimental rig and method measuring natural gas engine gas emitted dose | |
| Heffel et al. | Electronic fuel injection for hydrogen fueled internal combustion engines | |
| JP2012082766A (en) | Method and device for estimating cylinder pressure waveform of internal combustion engine | |
| CN205785801U (en) | A kind of pressure limiting valve opening pressure dry testing device | |
| CN106226045A (en) | A kind of dry testing method for pressure limiting valve opening pressure and device | |
| Niklawy et al. | Modelling and experimental investigation of high–pressure common rail diesel injection system | |
| Yang et al. | Investigation on online perception method of gas injection characteristics for the high-pressure natural gas direct injection engine | |
| CN115372223B (en) | Coal-gas multi-physical field coupling experimental device and method | |
| CN201387348Y (en) | Measuring system for burned dimethyl ether oil consumption for engine | |
| Zhang et al. | Closed-loop control of low temperature combustion employing ion current detecting technology | |
| CN203572657U (en) | Parameter measuring device of internal fuel oil pipeline system of aero-engine | |
| CN203365088U (en) | Non-condensable gas measuring device of condenser | |
| CN202216731U (en) | Superconducting magnet liquid helium volatilization rate measuring device | |
| CN109238382A (en) | The fuel flow calculation method of adjustable turbine pump oil supply system | |
| Rugland et al. | Knock Sensor Based Virtual Combustion Sensor Signal Bias Sensitivity | |
| CN202403749U (en) | Fuel consumption tester | |
| Kuroshita et al. | Improvements of test method of flow-rate characteristics of pneumatic components |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20190331 |