CN104121102A - Fuel feeding system of micro diesel oil ignition direct-injection natural gas engine and control method thereof - Google Patents
Fuel feeding system of micro diesel oil ignition direct-injection natural gas engine and control method thereof Download PDFInfo
- Publication number
- CN104121102A CN104121102A CN201410352491.6A CN201410352491A CN104121102A CN 104121102 A CN104121102 A CN 104121102A CN 201410352491 A CN201410352491 A CN 201410352491A CN 104121102 A CN104121102 A CN 104121102A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- diesel oil
- diesel
- rail
- pressure
- 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.)
- Granted
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 176
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 110
- 239000003345 natural gas Substances 0.000 title claims abstract description 88
- 239000000446 fuel Substances 0.000 title claims abstract description 43
- 238000002347 injection Methods 0.000 title claims abstract description 40
- 239000007924 injection Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 99
- 239000011435 rock Substances 0.000 claims description 71
- 239000000523 sample Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 7
- 238000005457 optimization Methods 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 description 11
- 239000007921 spray Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a fuel feeding system of a micro diesel oil ignition direct-injection natural gas engine and a control method of the fuel feeding system. The fuel feeding system comprises an electronic control common rail ignition diesel oil feeding device and an electronic control common rail high-pressure direct-injection natural gas feeding device, wherein the electronic control common rail ignition diesel oil feeding device and the electronic control common rail high-pressure direct-injection natural gas feeding device are independently controlled through an electronic control system,the electronic control system supplies ignition diesel oil with certain pressure to the natural gas engine in an adjusting mode by having control over a diesel oil pressure adjusting module of the electronic control common rail ignition diesel oil feeding device according to the working condition of the natural gas engine, and the electronic control system supplies main jet natural gas with certain pressure to the natural gas engine in an adjusting mode by having control over a natural gas pressure adjusting module of the electronic control common rail high-pressure direct-injection natural gas feeding device according to the working condition of the natural gas engine.Injection pressure of the ignition diesel oil and jet pressure of the main jet natural gas are controlled through the electronic control system, and the purpose of quick low-emission efficient combustion of the engine is achieved.
Description
Technical field
The present invention relates to the technical field of cylinder inner high voltage direct-jet natural gas engine, relate to especially micro-diesel oil ignited cylinder inner high voltage direct-jet natural gas engine fuel supply system and for operating the controlling method of this fuel supply system.
Background technique
In recent years, rock gas as a kind of substitute fuel because the advantage aspect price and reserves more and more comes into one's own.The every discharge value of motor that the rock gas of take is main fuel all decreases, and more easily meets the Abgasgesetz of increasingly stringent, but common premixed combustion natural gas engine causes because compression ratio is subject to pinking restriction that the thermal efficiency is on the low side, power character is lower than same capacity diesel engine.The diesel oil ignited high pressure direct injection natural gas engine of trace can, keeping being issued to good emission performance with diesel engine with the prerequisite of equidynamic, have a good application prospect.
The diesel oil ignited natural cylinder inner high voltage of trace directly sprays with the working procedure of spark ignition rock gas in-cylinder direct fuel-injection engine different, its technological scheme is: in the compression stroke later stage, spray in advance a small amount of diesel oil as Ignition sources, main jet rock gas sprays into cylinder with high voltage style, diffusive combustion in the fiery core that rock gas forms at diesel oil, velocity of combustion is very fast, and combustion temperature is lower.
The key technology of this natural gas engine is the control to diesel pilot and main fuel natural gas injection process.The control mode of this h type engine h jet pressure is single automatically controlled at present, ECU only controls diesel oil rail pressure, rock gas rail pressure regulates by mechanical device, keep level pressure poor with diesel oil rail pressure, cannot realize according to engine operation condition the free adjusting of rail pressure, the further lifting of limiting engine combination property.
Summary of the invention
The deficiency existing for solving prior art, the invention discloses micro-diesel oil ignited direct-jet natural gas engine fuel supply system and controlling method, supply system comprises electric-controlled co-rail diesel pilot supplier and electric-controlled co-rail high pressure direct injection rock gas supplier, according to the Operation Conditions of motor, by the jet pressure of electric control system controls diesel pilot jet pressure and main jet rock gas, realize the object of the quick low-discharging high-efficient burning of motor.
For achieving the above object, concrete scheme of the present invention is as follows:
The diesel oil ignited direct-jet natural gas engine fuel supply system of trace, comprise: the electric-controlled co-rail diesel pilot supplier of controlling respectively by automatical control system and electric-controlled co-rail high pressure direct injection rock gas supplier, described automatical control system regulates by controlling the diesel oil pressure adjusting module of electric-controlled co-rail diesel pilot supplier the diesel pilot of supplying with natural gas engine certain pressure according to the operating mode of natural gas engine, automatical control system regulates by controlling the gas pressure adjustment module of electric-controlled co-rail high pressure direct injection rock gas supplier the main jet rock gas of supplying with natural gas engine certain pressure according to the operating mode of natural gas engine.
Described electric-controlled co-rail diesel pilot supplier, comprise diesel fuel tank, diesel fuel tank is connected with diesel-oil filter, diesel-oil filter is connected with the input end of diesel pump, diesel oil delivery side of pump one tunnel is connected with diesel fuel tank, another road is connected with diesel oil pressure adjusting module, and diesel oil pressure adjusting module is connected with diesel oil rail, and diesel oil rail and diesel pump are all connected with electric-controlled injection pump.
Described electric-controlled co-rail high pressure direct injection rock gas supplier, comprise natural gas tank, natural gas tank is connected with rock gas knock out drum by rock gas compression module, rock gas knock out drum is connected with gas pressure adjustment module, gas pressure adjustment module is connected with rock gas rail, and rock gas rail is connected with electric-controlled injection pump.
Described automatical control system is also connected with diesel pump, diesel oil pressure adjusting module, gas pressure adjustment module, diesel oil rail pressure sensor, rock gas rail pressure sensor, electrically controlled injector, speed probe and air inlet pressure sensor.
Described natural gas engine is connected with electrically controlled injector, on the pipeline that enters air end of natural gas engine, is provided with intercooler, the pipeline that enters air end of natural gas engine and go out between the pipeline of air end to be provided with pressurized machine; On the pipeline that enters air end of described natural gas engine, be also connected with air-strainer and air inlet pressure sensor in turn.
One side of described natural gas engine is also provided with speed probe, and one end of described rock gas rail is provided with rock gas rail pressure sensor, and one end of described diesel oil rail is provided with diesel oil rail pressure sensor.
Between described rock gas knock out drum and gas pressure adjustment module, natural gas flowmeter is also installed, diesel oil fuel consumption meter is also installed between described diesel-oil filter and diesel pump.
The controlling method of the diesel oil ignited direct-jet natural gas engine fuel supply system of trace, comprising:
Step 1: automatical control system is regularly controlled engine fuel supply system according to default diesel oil rail pressure, diesel injection timing and default rock gas rail pressure and natural gas injection;
Step 2: according to the parameters value of natural gas engine, diesel oil rail pressure, diesel injection timing and default rock gas rail pressure and natural gas injection are regularly optimized, automatical control system regulates natural gas engine fuel supply system according to Optimal Parameters;
Step 3: take into account the measurement result of each sensor according to diesel oil fuel consumption meter, gas flow the power character of natural gas engine, Economy and emission performance are carried out to comprehensive performance evaluation, as performance meets user demand, carry out the parameter optimization of next operating point, if do not met the demands, this operating point is further optimized;
Step 4: all typical condition points of motor are demarcated one by one.
Beneficial effect of the present invention:
Supply system of the present invention comprises electric-controlled co-rail diesel pilot supplier and electric-controlled co-rail high pressure direct injection rock gas supplier, according to the Operation Conditions of motor, by the jet pressure of electric control system controls diesel pilot jet pressure and main jet rock gas, realize the quick low-discharging high-efficient of motor burning, in the situation that does not adopt or adopt simple reprocessing, be issued to state's IV emission standard object.
Accompanying drawing explanation
The diesel oil ignited cylinder inner high voltage of the trace direct-jet natural gas engine fuel supply system work schematic diagram of Fig. 1 an embodiment of the invention;
Fig. 2 an embodiment of the invention are for operating the logical flow chart of the control strategy of this fuel supply system;
In figure, 101 diesel fuel tanks, 102 diesel oil rail pressure sensor, 103 diesel oil rails, 104 automatical control systems, 105 rock gas rails, 106 speed probes, 107 natural gas engines, 108 electrically controlled injectors, 109 pressurized machines, 110 intercoolers, 111 air inlet pressure sensors, 112 air-strainer, 113 natural gas tanks, 114 rock gas compression modules, 115 rock gas knock out drums, 116 natural gas flowmeters, 117 rock gas rail pressure sensor, 118 gas pressure adjustment modules, 119 diesel oil pressure adjusting modules, 121 diesel pumps, 122 diesel oil fuel consumption meters, 123 diesel-oil filters.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1, the diesel oil ignited direct-jet natural gas engine fuel supply system of trace, comprise: the electric-controlled co-rail diesel pilot supplier of controlling respectively by automatical control system 104 and electric-controlled co-rail high pressure direct injection rock gas supplier, described automatical control system 104 regulates by controlling the diesel oil pressure adjusting module 119 of electric-controlled co-rail diesel pilot supplier the diesel pilot of supplying with natural gas engine 107 certain pressures according to the operating mode of natural gas engine 107, automatical control system 104 regulates by controlling the gas pressure adjustment module 118 of electric-controlled co-rail high pressure direct injection rock gas supplier the main jet rock gas of supplying with natural gas engine 107 certain pressures according to the operating mode of natural gas engine 107.
Electric-controlled co-rail diesel pilot supplier, comprise diesel fuel tank 101, diesel fuel tank 101 is connected with diesel-oil filter 123, diesel-oil filter 123 is connected with the input end of diesel pump 121, output terminal one tunnel of diesel pump 121 is connected with diesel fuel tank 101, another road is connected with diesel oil pressure adjusting module 119, and diesel oil pressure adjusting module 119 is connected with diesel oil rail 103, and diesel oil rail 103 and diesel pump 121 are all connected with electric-controlled injection pump 108.
Electric-controlled co-rail high pressure direct injection rock gas supplier, comprise natural gas tank 113, natural gas tank 113 is connected with rock gas knock out drum 115 by rock gas compression module 114, rock gas knock out drum 115 is connected with gas pressure adjustment module 118, gas pressure adjustment module 118 is connected with rock gas rail 105, and rock gas rail 105 is connected with electric-controlled injection pump 108.
Automatical control system 104 is also connected with diesel pump 121, diesel oil pressure adjusting module 119, gas pressure adjustment module 118, diesel oil rail pressure sensor 102, rock gas rail pressure sensor 117, electrically controlled injector 108, speed probe 106 and air inlet pressure sensor 111.
Natural gas engine 107 is connected with electrically controlled injector 108, on the pipeline that enters air end of natural gas engine 107, is provided with intercooler 110, the pipeline that enters air end of natural gas engine 107 and go out between the pipeline of air end to be provided with pressurized machine 109; On the pipeline that enters air end of described natural gas engine 107, be also connected with air-strainer 112 and air inlet pressure sensor 111 in turn.
One side of natural gas engine 107 is also provided with speed probe 106, and one end of described rock gas rail 105 is provided with rock gas rail pressure sensor 117, and one end of described diesel oil rail 103 is provided with diesel oil rail pressure sensor 102.
Between rock gas knock out drum 115 and gas pressure adjustment module 118, natural gas flowmeter 116 is also installed, between described diesel-oil filter 123 and diesel pump 121, diesel oil fuel consumption meter 122 is also installed.
Working principle: the gas supply system of natural gas engine comprises automatically controlled diesel pilot supplier and automatically controlled main fuel rock gas supplier.Automatically controlled diesel pilot supplier, when motor turns round under different operating modes, diesel oil is through diesel fuel tank 101, after filtering in diesel-oil filter 123, after diesel pump 121 pressurizations, enter diesel oil pressure voltage regulating module 119, electric control system ECU passes through the supply pressure of diesel oil pressure adjusting module 119 adjusting diesel oil rails 103 in conjunction with the rail pressure signal of diesel oil rail pressure sensor 102 feedbacks according to the parameters such as tach signal of speed probe 106 feedbacks.Automatically controlled main fuel rock gas supplier, after LNG Liquefied natural gas flows out from natural gas tank 113, through the 114 vaporization pressurizations of rock gas compression module, in knock out drum 115 after voltage stabilizing, the natural gas flowmeter 116 being arranged in gas pipeline is measured gas discharge, then enter gas pressure adjustment module 118, electric control system ECU 104 calculates correction in conjunction with rock gas rail pressure sensor 117 feedback rail pressures to rock gas design rail pressure according to parameters such as air mass flow engine speed, and regulates rock gas rail 105 to supply with pressure by gas pressure adjustment module 118.
In an embodiment of the invention, electric control system ECU 104 is controlled diesel oil pressure adjusting module 119 and gas pressure adjustment module 118 simultaneously, to control bavin oil and gas common rail pressure according to the Operation Conditions of motor simultaneously, realize the flexible control of two kinds of fuel rail pressures.
At another embodiment of the invention, the diesel oil rail pressure that described diesel oil rail pressure adjustment module 119 is supplied with is determined according to the MAP figure of engine speed, torque parameter and demarcation in advance by electric control system ECU 104, and is revised through the actual measurement rail pressure of diesel oil rail pressure sensor 102 feedbacks.
At another embodiment of the invention, the rock gas rail pressure that described rock gas rail pressure adjustment module 118 is supplied with is determined according to the MAP figure of engine speed, torque parameter and demarcation in advance by electric control system ECU 104, and is revised through the actual measurement rail pressure of rock gas rail pressure sensor 117 feedbacks.
At a mode of execution more of the present invention, rock gas rail pressure regulates with diesel oil rail pressure and regulates and have certain coherence, but it is separate that rock gas rail pressure regulates with diesel oil rail pressure adjustment process, pressure reduction can change with the variation of operating point, by electric control system ECU 104, controls respectively diesel oil and gas pressure adjustment module regulates.
As shown in Figure 2, the controlling method of micro-diesel oil ignited direct-jet natural gas engine fuel supply system, comprising:
First at step S201, automatical control system 104 is regularly controlled engine fuel supply system according to default diesel oil rail pressure, diesel injection timing and default rock gas rail pressure and natural gas injection.
Step S202, carries out comprehensive analysis according to parameters such as measured rate of fuel consumption, every discharge values (CO discharge, HC discharge and NOx discharge) to the power character of motor, Economy, emission performance the test result of the engine parameter value through sensor measurement is analyzed.
Step S203, according to Measurement results to diesel oil rail pressure, diesel injection regularly and default rock gas rail pressure and natural gas injection be regularly optimized that (process of optimization is for by the adjusting to rock gas, diesel oil rail pressure and injection timing, reach desirable engine performance, the overall target that is power character, Economy, emission performance reaches optimum), automatical control system regulates engine fuel supply system according to Optimal Parameters.
Step S204, according to the measurement result of the instruments such as fuel consumption meter, gas meter and each sensor, the power character of motor, Economy and emission performance are carried out to comprehensive performance evaluation, as performance meets user demand, carry out the parameter optimization of next operating point, if do not met the demands, this operating point is further optimized.
Then, at step S205, according to the usage requirement of motor, repeating step S201-S204 demarcates one by one to engine test bench characteristic and all typical condition points of mapping characteristics, makes its Economy, power character and emission performance meet design objective.
It should be noted that, with the example of the diesel oil ignited high pressure direct injection natural gas engine gas of trace supply system, invention has been described hereinbefore.Yet the present invention is not limited to this, but go for other fuel combination EFIs existing or that occur in the future rail motor altogether.
Claims (8)
1. micro-diesel oil ignited direct-jet natural gas engine fuel supply system, comprise: the electric-controlled co-rail diesel pilot supplier of controlling respectively by automatical control system and electric-controlled co-rail high pressure direct injection rock gas supplier, described automatical control system regulates by controlling the diesel oil pressure adjusting module of electric-controlled co-rail diesel pilot supplier the diesel pilot of supplying with natural gas engine certain pressure according to the operating mode of natural gas engine, automatical control system regulates by controlling the gas pressure adjustment module of electric-controlled co-rail high pressure direct injection rock gas supplier the main jet rock gas of supplying with natural gas engine certain pressure according to the operating mode of natural gas engine.
2. the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 1, it is characterized in that, described electric-controlled co-rail diesel pilot supplier, comprise diesel fuel tank, diesel fuel tank is connected with diesel-oil filter, and diesel-oil filter is connected with the input end of diesel pump, diesel oil delivery side of pump one tunnel is connected with diesel fuel tank, another road is connected with diesel oil pressure adjusting module, and diesel oil pressure adjusting module is connected with diesel oil rail, and diesel oil rail and diesel pump are all connected with electric-controlled injection pump.
3. the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 2, it is characterized in that, described electric-controlled co-rail high pressure direct injection rock gas supplier, comprise natural gas tank, natural gas tank is connected with rock gas knock out drum by rock gas compression module, rock gas knock out drum is connected with gas pressure adjustment module, and gas pressure adjustment module is connected with rock gas rail, and rock gas rail is connected with electric-controlled injection pump.
4. the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 1, it is characterized in that, described automatical control system is also connected with diesel pump, diesel oil pressure adjusting module, gas pressure adjustment module, diesel oil rail pressure sensor, rock gas rail pressure sensor, electrically controlled injector, speed probe and air inlet pressure sensor.
5. the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 1, it is characterized in that, described natural gas engine is connected with electrically controlled injector, on the pipeline that enters air end of natural gas engine, be provided with intercooler, the pipeline that enters air end of natural gas engine and go out between the pipeline of air end to be provided with pressurized machine; On the pipeline that enters air end of described natural gas engine, be also connected with air-strainer and air inlet pressure sensor in turn.
6. the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 4, it is characterized in that, one side of described natural gas engine is also provided with speed probe, one end of described rock gas rail is provided with rock gas rail pressure sensor, and one end of described diesel oil rail is provided with diesel oil rail pressure sensor.
7. the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 3, it is characterized in that, between described rock gas knock out drum and gas pressure adjustment module, natural gas flowmeter is also installed, diesel oil fuel consumption meter is also installed between described diesel-oil filter and diesel pump.
8. the controlling method of the diesel oil ignited direct-jet natural gas engine fuel supply system of trace as claimed in claim 1, is characterized in that, comprising:
Step 1: automatical control system is regularly controlled engine fuel supply system according to default diesel oil rail pressure, diesel injection timing and default rock gas rail pressure and natural gas injection;
Step 2: according to the parameters value of natural gas engine, diesel oil rail pressure, diesel injection timing and default rock gas rail pressure and natural gas injection are regularly optimized, automatical control system regulates natural gas engine fuel supply system according to Optimal Parameters;
Step 3: take into account the measurement result of each sensor according to diesel oil fuel consumption meter, gas flow the power character of natural gas engine, Economy and emission performance are carried out to comprehensive performance evaluation, as performance meets user demand, carry out the parameter optimization of next operating point, if do not met the demands, this operating point is further optimized;
Step 4: all typical condition points of motor are demarcated one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352491.6A CN104121102B (en) | 2014-07-23 | 2014-07-23 | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace and controlling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352491.6A CN104121102B (en) | 2014-07-23 | 2014-07-23 | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace and controlling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121102A true CN104121102A (en) | 2014-10-29 |
| CN104121102B CN104121102B (en) | 2016-03-23 |
Family
ID=51766692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410352491.6A Expired - Fee Related CN104121102B (en) | 2014-07-23 | 2014-07-23 | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace and controlling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121102B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747285A (en) * | 2015-03-16 | 2015-07-01 | 济南大学 | Control system and method for cold starting and warm-up emission of direct injection natural gas engine |
| CN105114194A (en) * | 2015-08-17 | 2015-12-02 | 沈阳航空航天大学 | General airplane dual-fuel engine combustion system and method |
| CN105114193A (en) * | 2015-07-30 | 2015-12-02 | 太原理工大学 | Fuel feed method of methanol/diesel dual-fuel diesel engine |
| CN105298671A (en) * | 2015-11-19 | 2016-02-03 | 山东大学 | Engine micro diesel ignition natural gas equivalent weight air combustion ratio combustion system and 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 |
| CN109404175A (en) * | 2018-10-22 | 2019-03-01 | 山推工程机械股份有限公司 | A kind of electronic injection diesel engine intake air temperature control system and control method |
| CN109915266A (en) * | 2019-04-26 | 2019-06-21 | 上海海事大学 | A kind of dual-fuel engine combustion system peculiar to vessel and method |
| CN110230538A (en) * | 2019-06-29 | 2019-09-13 | 山东中拓新能源有限公司 | A kind of diesel oil ignited unit and its progress control method |
| WO2019242040A1 (en) * | 2018-06-21 | 2019-12-26 | 潍柴动力股份有限公司 | Pressure coupled control method and system for diffusion combustion of natural gas engine |
| CN111287864A (en) * | 2018-12-10 | 2020-06-16 | 陕西重型汽车有限公司 | Automobile-used LNG feed system |
| CN111765020A (en) * | 2020-07-08 | 2020-10-13 | 潍柴动力股份有限公司 | Gas rail pressure adjusting method and system |
| CN111878261A (en) * | 2020-06-30 | 2020-11-03 | 潍柴动力股份有限公司 | Gas recirculation system, dual-fuel engine and gas recirculation control method |
| CN112302793A (en) * | 2020-10-29 | 2021-02-02 | 潍柴动力股份有限公司 | Stop valve closing detection method, stop valve closing detection device, electronic control unit, and storage medium |
| CN112377336A (en) * | 2020-11-09 | 2021-02-19 | 一汽解放汽车有限公司 | Fuel supply system and method for high-pressure direct injection dual-fuel engine |
| CN112901339A (en) * | 2021-01-15 | 2021-06-04 | 河北工业大学 | Direct injection natural gas engine system based on ammonia pyrolysis device and control method thereof |
| CN113390592A (en) * | 2021-06-21 | 2021-09-14 | 哈尔滨东安汽车动力股份有限公司 | Measuring rack for vibration intensity of range extender and measuring method thereof |
| CN114992020A (en) * | 2022-05-10 | 2022-09-02 | 潍柴动力股份有限公司 | Method and device for determining fuel rail pressure of HPDI engine and controller of vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740542A (en) * | 2005-07-21 | 2006-03-01 | 贵州红华科技开发有限公司 | Electronic fuel oil jetting controller and controlling method for double fuel engine |
| CN202431377U (en) * | 2011-12-20 | 2012-09-12 | 遂宁市华旭科技有限公司 | Diesel oil/natural gas double-fuel supply system |
| CN103511103A (en) * | 2012-06-29 | 2014-01-15 | 曼恩柴油机涡轮股份公司曼恩柴油机涡轮德国分公司 | An internal combustion engine with variable fuel injection profile |
| US20140116375A1 (en) * | 2012-10-26 | 2014-05-01 | Caterpillar Inc. | Dual fuel engine and strategy to avoid atmospheric venting |
| CN103899424A (en) * | 2014-03-27 | 2014-07-02 | 哈尔滨工程大学 | Ship dual-fuel-engine speed control system and method |
-
2014
- 2014-07-23 CN CN201410352491.6A patent/CN104121102B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740542A (en) * | 2005-07-21 | 2006-03-01 | 贵州红华科技开发有限公司 | Electronic fuel oil jetting controller and controlling method for double fuel engine |
| CN202431377U (en) * | 2011-12-20 | 2012-09-12 | 遂宁市华旭科技有限公司 | Diesel oil/natural gas double-fuel supply system |
| CN103511103A (en) * | 2012-06-29 | 2014-01-15 | 曼恩柴油机涡轮股份公司曼恩柴油机涡轮德国分公司 | An internal combustion engine with variable fuel injection profile |
| US20140116375A1 (en) * | 2012-10-26 | 2014-05-01 | Caterpillar Inc. | Dual fuel engine and strategy to avoid atmospheric venting |
| CN103899424A (en) * | 2014-03-27 | 2014-07-02 | 哈尔滨工程大学 | Ship dual-fuel-engine speed control system and method |
Non-Patent Citations (1)
| Title |
|---|
| 李孟涵，张强，李国祥，邵思东: "《缸内高压直喷天然气发动机外特性燃烧参数研究》", 《内燃机工程》 * |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747285B (en) * | 2015-03-16 | 2017-02-22 | 济南大学 | Control method for cold starting and warm-up emission of direct injection natural gas engine |
| CN104747285A (en) * | 2015-03-16 | 2015-07-01 | 济南大学 | Control system and method for cold starting and warm-up emission of direct injection natural gas engine |
| CN105114193B (en) * | 2015-07-30 | 2019-04-30 | 太原理工大学 | A kind of Methanol/Diesel Dual Fuel diesel engine fuel oil supply method |
| CN105114193A (en) * | 2015-07-30 | 2015-12-02 | 太原理工大学 | Fuel feed method of methanol/diesel dual-fuel diesel engine |
| CN105114194A (en) * | 2015-08-17 | 2015-12-02 | 沈阳航空航天大学 | General airplane dual-fuel engine combustion system and method |
| CN105298671A (en) * | 2015-11-19 | 2016-02-03 | 山东大学 | Engine micro diesel ignition natural gas equivalent weight air combustion ratio combustion system and 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 |
| WO2019242040A1 (en) * | 2018-06-21 | 2019-12-26 | 潍柴动力股份有限公司 | Pressure coupled control method and system for diffusion combustion of natural gas engine |
| US10941715B2 (en) | 2018-06-21 | 2021-03-09 | Weichai Power Co., Ltd. | Pressure coupled control method and system for diffusion combustion of natural gas engine |
| CN109404175A (en) * | 2018-10-22 | 2019-03-01 | 山推工程机械股份有限公司 | A kind of electronic injection diesel engine intake air temperature control system and control method |
| CN111287864A (en) * | 2018-12-10 | 2020-06-16 | 陕西重型汽车有限公司 | Automobile-used LNG feed system |
| CN109915266A (en) * | 2019-04-26 | 2019-06-21 | 上海海事大学 | A kind of dual-fuel engine combustion system peculiar to vessel and method |
| CN110230538A (en) * | 2019-06-29 | 2019-09-13 | 山东中拓新能源有限公司 | A kind of diesel oil ignited unit and its progress control method |
| CN111878261A (en) * | 2020-06-30 | 2020-11-03 | 潍柴动力股份有限公司 | Gas recirculation system, dual-fuel engine and gas recirculation control method |
| CN111765020A (en) * | 2020-07-08 | 2020-10-13 | 潍柴动力股份有限公司 | Gas rail pressure adjusting method and system |
| CN111765020B (en) * | 2020-07-08 | 2021-11-19 | 潍柴动力股份有限公司 | Gas rail pressure adjusting method and system |
| CN112302793A (en) * | 2020-10-29 | 2021-02-02 | 潍柴动力股份有限公司 | Stop valve closing detection method, stop valve closing detection device, electronic control unit, and storage medium |
| CN112377336A (en) * | 2020-11-09 | 2021-02-19 | 一汽解放汽车有限公司 | Fuel supply system and method for high-pressure direct injection dual-fuel engine |
| CN112901339A (en) * | 2021-01-15 | 2021-06-04 | 河北工业大学 | Direct injection natural gas engine system based on ammonia pyrolysis device and control method thereof |
| CN112901339B (en) * | 2021-01-15 | 2022-04-26 | 河北工业大学 | Direct injection natural gas engine system based on ammonia pyrolysis device and control method thereof |
| CN113390592A (en) * | 2021-06-21 | 2021-09-14 | 哈尔滨东安汽车动力股份有限公司 | Measuring rack for vibration intensity of range extender and measuring method thereof |
| CN114992020A (en) * | 2022-05-10 | 2022-09-02 | 潍柴动力股份有限公司 | Method and device for determining fuel rail pressure of HPDI engine and controller of vehicle |
| CN114992020B (en) * | 2022-05-10 | 2024-03-19 | 潍柴动力股份有限公司 | Method and device for determining fuel rail pressure of HPDI engine and controller of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104121102B (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104121102B (en) | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace and controlling method | |
| US8095294B1 (en) | Method for determining fuel injection on-time in a gaseous-fuelled internal combustion engine | |
| CN104775941B (en) | Improve the control method of gas engine transient response | |
| EP1854982B1 (en) | Method for recognising the fuel type in a diesel engine | |
| US9334812B2 (en) | Fuel supply control system for multi-fuel internal combustion engine | |
| US9441561B2 (en) | System and method for increasing tolerance to fuel variation | |
| CN103982308A (en) | Control system and control method of oil/gas dual-fuel engine in electronic control oil supply | |
| CN203978671U (en) | The diesel oil ignited direct-jet natural gas engine fuel supply system of trace | |
| CN101825027B (en) | Method and apparatus for controlling fuel rail pressure using fuel pressure sensor error | |
| CN100595426C (en) | Internal combustion engine | |
| CN105697160A (en) | System and method for increasing gaseous fuel displacement | |
| CN104533639B (en) | Based on dual-fuel engine combustion system and the method for switchable type oil sprayer | |
| CN104033256A (en) | Control system and method of oil and gas dual-fuel engine with oil supplied by mechanical pump | |
| CN105114194A (en) | General airplane dual-fuel engine combustion system and method | |
| CN202926466U (en) | Gasoline and natural gas double-fuel four-cylinder engine | |
| KR100934210B1 (en) | Durability test device for automobile fuel pump and injector | |
| CN103422997A (en) | Fuel feed system and method and vehicle provided with fuel feed system | |
| CN204572249U (en) | Improve the control gear of gas engine transient response | |
| CN103415687A (en) | Control device for various types of fuel internal combustion engines | |
| US20190120163A1 (en) | Dual-fuel internal combustion engine | |
| CN102483001A (en) | Fuel injector gain compensation for sub-sonic flow | |
| CN103615331A (en) | Method of suppressing rough combustion of dual-fuel engine | |
| AU2018201531B2 (en) | Engine and control strategy for injecting augmenting fuel to stream of gaseous fuel and air | |
| CN202926477U (en) | Gasoline and natural gas double-fuel six-cylinder engine | |
| CN209704729U (en) | A kind of double-fuel diesel engine oil circuit improvement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20160323 |