CN101737176A - Natural gas/diesel dual-fuel ECU electronic control injection system - Google Patents
Natural gas/diesel dual-fuel ECU electronic control injection system Download PDFInfo
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- CN101737176A CN101737176A CN200810217823A CN200810217823A CN101737176A CN 101737176 A CN101737176 A CN 101737176A CN 200810217823 A CN200810217823 A CN 200810217823A CN 200810217823 A CN200810217823 A CN 200810217823A CN 101737176 A CN101737176 A CN 101737176A
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Abstract
The invention discloses a natural gas/diesel dual-fuel ECU electronic control injection system. A control system in the injection system adopts an ECU control system which is connected with a transmitter load command receiving device; an outlet of a supply pipe in a natural gas supply system is connected with a high-pressure switch valve connected with a pressure-reducing valve; the pressure-reducing valve is connected with a low pressure valve connected with a low-pressure switch valve; the low-pressure switch valve is connected with a natural gas injection valve connected with a mixer; the control system respectively controls the on/off of the high-pressure switch valve, the low-pressure switch valve and the natural gas injection valve; in a diesel supply system, an outlet of an oil tank is connected with an injection pump connected with an engine; a throttle actuator controls the injection pump to work; the control system controls the throttle actuator to work; an A/F control valve in an exhaust system is connected with an air outlet of the engine and is connected with a turbocharger; and an air filter is connected with the turbocharger.
Description
Technical field
The present invention discloses a kind of fuel electric-control ejecting system, particularly a kind of rock gas/gas/diesel dual-fuel ECU electronic control injection system.
Background technique
Along with the high speed development of Chinese national economy and the swift and violent raising of living standards of the people, the improvement of city environmental pollution has become the major issue that people pay close attention to.In city environmental pollution all multifactor, motor vehicle exhaust emission has become a main aspect of city environmental pollution, contains that as early as possible the impetus that this urban atmospheric pollution worsens day by day is very urgent.At present, the market share of diesel-oil vehicle is 55%, and mainly is big-and-middle-sized haulage vehicle, the fuel consume height of vehicle, comparatively serious to the pollution of environment.And the diesel generating set quantity of using on the market is also very huge now, and it also is one of main pollution sources.
Summary of the invention
Much adopt diesel oil to act as a fuel at the above-mentioned automobile of mentioning of the prior art, the fuel consume height, to shortcoming such as the pollution of environment is comparatively serious, the invention provides a kind of rock gas/gas/diesel dual-fuel ECU electronic control injection system that is applied to motor, it adopts the conversion between ECU electric control system controls gasoline and the natural gas supply, and the substitute gas rate can reach 80%.
The technological scheme that the present invention solves its technical problem employing is: a kind of rock gas/gas/diesel dual-fuel ECU electronic control injection system, ejecting system comprises motor, control system, natural gas supply system, diesel oil supply system, vent systems, control system adopts the ECU control system, and control system is connected with transmitter load order receiving device; The natural gas supply system comprises the natural gas supply pipe, be connected with the high-voltage switch gear valve in the supply tube outlet, be connected with reduction valve with the high-voltage switch gear valve, be connected with low pressure valve with reduction valve, be connected with the lower pressure switch valve with low pressure valve, be connected with the natural gas injection valve with the lower pressure switch valve, the natural gas injection valve is connected with mixer, and control system is controlled the switch of high-voltage switch gear valve, lower pressure switch valve, natural gas injection valve respectively; The diesel oil supply system comprises fuel tank, is connected with Injection Pump with fuel-tank outlet, Injection Pump is connected with motor, the work of throttle actuator control Injection Pump, the work of control system control throttle actuator; Vent systems comprises A/F control valve, turbosupercharger, empty filter, and the A/F control valve is connected with the motor air outlet, and turbosupercharger is connected with the A/F control valve, and empty filter is connected with turbosupercharger.
The technological scheme that the present invention solves its technical problem employing further comprises:
Be connected with speed probe on the described motor, speed probe is connected with the data terminal of control system.
On the described motor temperature transducer is installed, temperature transducer is connected with the data terminal of control system.
Be connected with pressure transducer between described turbosupercharger and the A/F control valve, pressure transducer is connected with the data terminal of control system.
The invention has the beneficial effects as follows: the present invention adopts the conversion between ECU electric control system controls gasoline and the natural gas supply, the substitute gas rate can reach 80%, because easy to use, the combustion cleaning, cheap of rock gas, adopt behind the present invention make diesel engine into rock gas/diesel dual-fuel motor after, can effectively reduce atmospheric pollution, reduce user cost.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a system principle skeleton diagram of the present invention.
Embodiment
Present embodiment is the preferred embodiment for the present invention, and other all its principles are identical with present embodiment or approximate with basic structure, all within protection domain of the present invention.
Please referring to accompanying drawing 1, the present invention is mainly used in the transformation of diesel engine, and the present invention mainly comprises motor, control system, natural gas supply system, diesel oil supply system, vent systems.
Core of the present invention is a control system, control system adopts the ECU control system, the natural gas supply system be high-pressure natural gas by line transportation in mixer, enter motor then, provide energy to motor, the delivery volume of rock gas adopts digital valve composite control technology in parallel, wherein, the outlet of natural gas supply pipe is connected with the high-voltage switch gear valve, the high-voltage switch gear valve is connected with reduction valve, high-pressure natural gas enters reduction valve by the high-voltage switch gear valve, convert low pressure natural gas to by reduction valve, be connected with the lower pressure switch valve with reduction valve, be connected with the natural gas injection valve with the lower pressure switch valve, low pressure natural gas is spurted in the mixer by the natural gas injection valve, the emitted dose of rock gas is mainly finished control by injection valve, in the present embodiment, adopt the PWM pulse-width signal to come control electromagnetic valve to open size, with the size of accurate control emitted dose.In the present embodiment, the control end of high-voltage switch gear valve, lower pressure switch valve, injection valve is connected with control system respectively, control the size that its solenoid valve is opened by control system, control the delivery volume and the emitted dose of rock gas, rock gas is by mixer rear driving motor.The diesel oil supply system adopts diesel engine of the prior art, diesel engine exports out and is connected with Injection Pump, the oil pump capacity of throttle actuator control Injection Pump, and throttle actuator is connected with control system, control system is by the control throttle actuator, thus the oil pump capacity of control Injection Pump.Be connected with the A/F control valve with mixer, be connected with turbosupercharger with the A/F control valve, being connected with turbosupercharger is free filter, be connected with pressure transducer between A/F control valve and the turbosupercharger, pressure transducer is connected with the data terminal of control system, the variation of the force value that ECU can experience according to pressure transducer is solved the natural gas injection amount, thereby is obtained desirable air fuel ratio.Among the present invention, on motor, be connected with speed probe, speed probe is connected with the data terminal of control system, monitor the rotating speed of motor in real time by speed probe, the engine exhaust port place also is equipped with temperature controller, and temperature controller is connected with the data terminal of control system, comes the working state of monitor engine by temperature transducer, when engine exhaust temperature surpassed the trouble free service delivery temperature, control system can switch to mode of operation full diesel oil mode of operation automatically.Be connected with engine load order receiving device on the data terminal of control system, can control motor by control system and whether be with and carry.
The present invention realizes the supply of diesel oil amount by the control throttle, when breaking off the diesel oil supply fully, promptly enters All Pure Nature gas pattern.The present invention in use, be introduced into full diesel fuel mode, play the effect of igniting by micro-diesel oil, ECU controls the closed throttle of throttle actuator then, the work of control high-voltage switch gear valve and lower pressure switch valve, the amount of feed of control rock gas is controlled the folding of natural gas injection valve simultaneously, with the emitted dose of control natural gas, thereby obtain desirable air fuel ratio.When the delivery temperature of motor surpassed the trouble free service delivery temperature, system can switch to mode of operation full diesel oil mode of operation automatically.
Also be provided with manual diverter switch among the present invention, thus can be easily by manually carrying out the switching between diesel oil-rock gas.Utilize the present invention to carry out improved diesel engine, can be under the maximum load state, the substitute gas rate reaches 80%, can effectively reduce fuel cost on the one hand, and another invention can also energy-conserving and environment-protective.
Claims (4)
1. rock gas/gas/diesel dual-fuel ECU electronic control injection system, it is characterized in that: described ejecting system comprises motor, control system, natural gas supply system, diesel oil supply system, vent systems,
Described control system adopts the ECU control system, and control system is connected with transmitter load order receiving device;
Described natural gas supply system comprises the natural gas supply pipe, be connected with the high-voltage switch gear valve in the supply tube outlet, be connected with reduction valve with the high-voltage switch gear valve, be connected with low pressure valve with reduction valve, be connected with the lower pressure switch valve with low pressure valve, be connected with the natural gas injection valve with the lower pressure switch valve, the natural gas injection valve is connected with mixer, and control system is controlled the switch of high-voltage switch gear valve, lower pressure switch valve, natural gas injection valve respectively;
Described diesel oil supply system comprises fuel tank, is connected with Injection Pump with fuel-tank outlet, Injection Pump is connected with motor, the work of throttle actuator control Injection Pump, the work of control system control throttle actuator;
Described vent systems comprises A/F control valve, turbosupercharger, empty filter, and the A/F control valve is connected with the motor air outlet, and turbosupercharger is connected with the A/F control valve, and empty filter is connected with turbosupercharger.
2. rock gas/gas/diesel dual-fuel ECU electronic control injection system according to claim 1 is characterized in that: be connected with speed probe on the described motor, speed probe is connected with the data terminal of control system.
3. rock gas/gas/diesel dual-fuel ECU electronic control injection system according to claim 1 is characterized in that: on the described motor temperature transducer is installed, temperature transducer is connected with the data terminal of control system.
4. rock gas/gas/diesel dual-fuel ECU electronic control injection system according to claim 1 is characterized in that: be connected with pressure transducer between described turbosupercharger and the A/F control valve, pressure transducer is connected with the data terminal of control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810217823A CN101737176A (en) | 2008-11-21 | 2008-11-21 | Natural gas/diesel dual-fuel ECU electronic control injection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810217823A CN101737176A (en) | 2008-11-21 | 2008-11-21 | Natural gas/diesel dual-fuel ECU electronic control injection system |
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| CN101737176A true CN101737176A (en) | 2010-06-16 |
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| CN200810217823A Pending CN101737176A (en) | 2008-11-21 | 2008-11-21 | Natural gas/diesel dual-fuel ECU electronic control injection system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269062A (en) * | 2011-05-10 | 2011-12-07 | 崔万秀 | Multi-fuel diesel oil combustion system of heavy equipment and device thereof |
| CN102953848A (en) * | 2011-08-16 | 2013-03-06 | 镇江恒驰科技有限公司 | Blended combustion control method for diesel-gas engine |
| CN103321782A (en) * | 2013-07-11 | 2013-09-25 | 烟台杰瑞石油服务集团股份有限公司 | Dual-fuel modified system |
| CN103470383A (en) * | 2013-09-29 | 2013-12-25 | 福州大学 | Determining method for fuel supplying quantity of dual-fuel conversion of diesel engine |
| CN104136749A (en) * | 2012-04-11 | 2014-11-05 | 三菱重工业株式会社 | Dual-fuel diesel engine and method for operating same |
| CN104251160A (en) * | 2014-07-30 | 2014-12-31 | 江苏宁工重机股份有限公司 | Electronic control system for dual-fuel engine |
| CN105298656A (en) * | 2015-10-14 | 2016-02-03 | 新兴能源装备股份有限公司 | Diesel oil and natural gas double-fuel electric control jetting device |
| CN111305978A (en) * | 2020-02-18 | 2020-06-19 | 哈尔滨工程大学 | Gas engine gas supply device with step gas supply pressure and control method thereof |
-
2008
- 2008-11-21 CN CN200810217823A patent/CN101737176A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269062A (en) * | 2011-05-10 | 2011-12-07 | 崔万秀 | Multi-fuel diesel oil combustion system of heavy equipment and device thereof |
| CN102269062B (en) * | 2011-05-10 | 2014-08-06 | 崔万秀 | Multi-fuel diesel oil combustion system of heavy equipment and device thereof |
| CN102953848A (en) * | 2011-08-16 | 2013-03-06 | 镇江恒驰科技有限公司 | Blended combustion control method for diesel-gas engine |
| CN104136749A (en) * | 2012-04-11 | 2014-11-05 | 三菱重工业株式会社 | Dual-fuel diesel engine and method for operating same |
| CN104136749B (en) * | 2012-04-11 | 2017-03-01 | 三菱重工业株式会社 | Double-fuel diesel engine |
| CN103321782B (en) * | 2013-07-11 | 2016-03-23 | 烟台杰瑞石油服务集团股份有限公司 | A kind of dual-fuel conversion system |
| CN103321782A (en) * | 2013-07-11 | 2013-09-25 | 烟台杰瑞石油服务集团股份有限公司 | Dual-fuel modified system |
| CN103470383A (en) * | 2013-09-29 | 2013-12-25 | 福州大学 | Determining method for fuel supplying quantity of dual-fuel conversion of diesel engine |
| CN103470383B (en) * | 2013-09-29 | 2015-11-18 | 福州大学 | A kind of diesel engine double fuel modified fuel supply method for determination of amount |
| CN104251160A (en) * | 2014-07-30 | 2014-12-31 | 江苏宁工重机股份有限公司 | Electronic control system for dual-fuel engine |
| CN105298656A (en) * | 2015-10-14 | 2016-02-03 | 新兴能源装备股份有限公司 | Diesel oil and natural gas double-fuel electric control jetting device |
| CN105298656B (en) * | 2015-10-14 | 2018-01-19 | 新兴能源装备股份有限公司 | Diesel gas double fuel electric-controlled injection device |
| CN111305978A (en) * | 2020-02-18 | 2020-06-19 | 哈尔滨工程大学 | Gas engine gas supply device with step gas supply pressure and control method thereof |
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Application publication date: 20100616 |