CN202867007U - Dual-fuel motor - Google Patents
Dual-fuel motor Download PDFInfo
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- CN202867007U CN202867007U CN201220604418XU CN201220604418U CN202867007U CN 202867007 U CN202867007 U CN 202867007U CN 201220604418X U CN201220604418X U CN 201220604418XU CN 201220604418 U CN201220604418 U CN 201220604418U CN 202867007 U CN202867007 U CN 202867007U
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- 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
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Abstract
The utility model discloses a dual-fuel motor. The dual-fuel motor comprises a fuel oil supply system, a gas supply system and a control system. The dual-fuel motor automatically regulates emitted dose of natural gas in a real time, and ensures the best dynamic working performance and starting performance of the motor through a plurality of parameters of the motor controlled by an engine control unit (ECU). Quantity of gas intake flow is controlled by an air-injection actuator, the best air-fuel ratio of the motor gained in each working condition is ensured, the motor combustion process is improved, the best dynamic property and economy of the motor are provided, a substitution rate of diesel oil, 70%-90% in average, is ensured, and smoke intensity of the motor and discharge of hydrocarbon (HC), CO, nitrogen oxides (NO x) and particles are largely reduced. In addition, the dual-fuel motor has the fault self-diagnostic function. When the gas supply system has problems, ECU automatically switches the motor to a state of pure diesel oil, and the motor is safe and reliable. After being tested, the dual-fuel motor surpasses the third stage vehicle emission standards in China, and has green environmental protection dynamic of the good dynamic property, the economy, the environmental protection property and operability.
Description
Technical field
The utility model relates to a kind of motor.
Background technique
Rock gas is as " clean fuel " recognized in the world, and the discharging of diesel oil is to be higher than rock gas far away, the especially discharging of soot, and environmental pollution and human health have been brought great threat.The natural gas resource of China is very abundant, and the explored reserves of China are 2.3 tcms.Therefore, development natural gas engine prospect is very wide.
Along with rising steadily of diesel-fuel price, the operation cost of diesel engine is also more and more higher.Therefore, how under the prerequisite that does not change original Diesel Engine Mechanical structure cut the cost of fuel be the large technical barrier that all commercial families face.Duel fuel engine has solved this problem well, has guaranteed that large change does not occur for the mechanical structure of former diesel engine and performance.This system allows diesel oil and rock gas mixed combustion, also can be in the complete situation of natural gas motorcar normal burning diesel oil, and do not change the power character of original diesel engine.
But existing duel fuel engine all is to adopt the diesel engine of electronically controlled unit pump, Electrocontrolled high-pressure common rail oil-fired system to transform, this dual-fuel diesel engine requires high to diesel quality, and price is higher, be not suitable for China's actual conditions, and social recoverable amount is little, can not produce considerable Social benefit and economic benefit.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of duel fuel engine that the ordinary diesel oil machine is transformed that is applicable to.
For solving the problems of the technologies described above, the technical solution of the utility model is: duel fuel engine, comprise fuel oil supply system, gas supply system and control system, described fuel oil supply system comprises the electronic speed regulation Injection Pump, described gas supply system comprises mixer, described mixer is provided with two suction ports and an air outlet, and the suction port of described mixer is connected with respectively air filter and jet final controlling element, and the air outlet of described mixer is connected to the suction tude of motor by pipeline; Described control system comprises ECU, the signal input part of described ECU is connected with the pressure-temperature sensor that is installed on the suction tude and the speed probe that is installed on the motor, and the signal output part of described ECU is connected to described jet final controlling element and described electronic speed regulation Injection Pump.
As preferred technological scheme, also be provided with mechanical adjustable speed drive on the described electronic speed regulation Injection Pump.
Owing to adopted technique scheme, duel fuel engine, comprise fuel oil supply system, gas supply system and control system, described fuel oil supply system comprises the electronic speed regulation Injection Pump, described gas supply system comprises mixer, described mixer is provided with two suction ports and an air outlet, and the suction port of described mixer is connected with respectively air filter and jet final controlling element, and the air outlet of described mixer is connected to the suction tude of motor by pipeline; Described control system comprises ECU, the signal input part of described ECU is connected with the pressure-temperature sensor that is installed on the suction tude and the speed probe that is installed on the motor, and the signal output part of described ECU is connected to described jet final controlling element and described electronic speed regulation Injection Pump; The utility model is adjusted the natural gas injection amount in real time automatically by the many kinds of parameters of ECU control engine, guarantees best motor dynamic duty performance and starting performance; Adopt jet final controlling element to come charge flow rate is controlled, guarantee that motor obtains best empty burning in each operating mode, improved engine combustion process, best engine power performance and Economy is provided, guarantee the diesel oil substitution rate of average 70%-90%, significantly reduced smoke intensity, HC, CO, NOx and the particulate emission of motor; And have fault self-diagnosis function, and when air supply system went wrong, ECU switched to motor pure diesel oil state automatically, and engine health is reliable; Through overtesting, the utility model motor has surpassed state's 3 standards, is the environmental protection power with good dynamics, Economy, the feature of environmental protection and operability.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:
Accompanying drawing 1 is the utility model embodiment's schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation some example embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection domain of restriction claim.
As shown in drawings, duel fuel engine, comprise fuel oil supply system, gas supply system and control system, described fuel oil supply system comprises the electronic speed regulation Injection Pump, described gas supply system comprises mixer, described mixer is provided with two suction ports and an air outlet, and the suction port of described mixer is connected with respectively air filter and jet final controlling element, and the air outlet of described mixer is connected to the suction tude of motor by pipeline; Described control system comprises ECU, the signal input part of described ECU is connected with the pressure-temperature sensor that is installed on the suction tude and the speed probe that is installed on the motor, and the signal output part of described ECU is connected to described jet final controlling element and described electronic speed regulation Injection Pump.
Also be provided with mechanical adjustable speed drive on the described electronic speed regulation Injection Pump, what present embodiment adopted is the Injection Pump with mechanical adjustable speed drive and electrically-actuated throttle device.
The utility model has been broken through conventional duel fuel engine technology, has adopted advanced engine electric-controlled CNG(CNG compressed natural gas) intake manifold sprays Lean Burning Technique, the combination property major tuneup.By 20 many kinds of parameters of ECU control engine, automatically adjust in real time the natural gas injection amount, guarantee best motor dynamic duty performance and starting performance; Adopt the charge flow rate control gear, guarantee that motor obtains best empty burning in each operating mode, improved engine combustion process, best engine power performance and Economy is provided; Guarantee the diesel oil substitution rate of average 70%-90%, significantly reduced smoke intensity, HC, CO, NOx and the particulate emission of motor; Have fault self-diagnosis function, when air supply system went wrong, ECU switched to motor pure diesel oil state automatically, and engine health is reliable.
The utlity model has two kinds of working staties, two cover fuel storage systems.When using the CNG--diesel oil mixed combustion, the diesel oil delivery volume reduces 70%-90% under the equal operating mode.Spray on a small quantity diesel oil in the cylinder as " pilot fuel " with compression ignite, rock gas is as main fuel, by the decompression of high pressure relief device, in mixer with filter after air enter cylinder after evenly mixing and participate in burning, externally do work.When using pure diesel combustion, turn-off by the ECU automatic switching control equipment, cut off the rock gas inlet air pathway, adjust the total oil mass to 100% of Injection Pump position, thereby recover 100% full diesel combustion.
Control system of the present utility model is comprised of elements such as ECU, gas cylinder, decompressor, jet final controlling element, speed probe, temperature and pressure transmitters, can improve safely and effectively engine power, rotating speed, have the characteristic advantages such as energy-conservation, reduction of discharging, noise reduction, environmental protection.
ECU writes control program, make ECU work, according to the basic analog signal parameter of sensor signal conduct, the inner CPN of ECU is converted to data-signal, the signal that calculating sensor imports into is controlled the different air demands of final controlling element, make combustion gas in cylinder, bring into play the maximum effectively thermal efficiency, improve engine power.Simple to operate, working stability, failure rate is low.
Adopt peak output and the Maximum Torque of CNG-diesel dual-fuel control system of the present utility model that increase is all arranged, power character is better; When the CNG-diesel oil mixed fuel burnt, the diesel oil fuel consumption reduced more than 70%, and fuel cost can reduce more than 35%, has reduced widely user cost.
The utility model usable condition:
1. it is huge mainly to mate present domestic recoverable amount, the diesel engine of " pump-pipe-mouth " oil-fired system of configuration machinery and electronic speed regulation Injection Pump.Because of China town and country various places socio-economic conditions disparate development, at the widely used diesel engine of all trades and professions, technical development is also uneven as power, and that adopts " pump-pipe-mouth " oil-fired system still accounts for the overwhelming majority; Adopt the diesel engine of electronically controlled unit pump, Electrocontrolled high-pressure common rail oil-fired system, diesel quality is required height, and price is higher, is not suitable for China's actual conditions, social recoverable amount is little.Wanting further energy-saving and emission-reduction, adopt suitable control technique to transform this part diesel engine, is the major subjects of pendulum in face of us.Under the prerequisite that does not change engine structure and component, ripe automatically controlled CNG intake manifold's spraying technique is solution preferably.The stability and the Security that had both kept motor can reduce reforming cost again to greatest extent.
2. require low to inflammable gas.Comprise that rock gas, coal-seam gas, petroleum gas, biogas, Straw Gas, rubbish gas processed etc. all can be used as source of the gas, moisture, sulphur content are required low, gas pressure is required as long as all can use in the scope of 200KPa-1KPa broadness.
3. the various fuel oil operating modes such as coupling automobile, engineering machinery, stationary power are all functional, comprise two plate, omnidistance formula governor impeller, all can reach the effect of a burning diesel oil.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or with the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiments with various modifications that the utility model design is suitable for special-purpose.
Claims (2)
1. duel fuel engine, comprise fuel oil supply system, gas supply system and control system, it is characterized in that: described fuel oil supply system comprises the electronic speed regulation Injection Pump, described gas supply system comprises mixer, described mixer is provided with two suction ports and an air outlet, the suction port of described mixer is connected with respectively air filter and jet final controlling element, and the air outlet of described mixer is connected to the suction tude of motor by pipeline; Described control system comprises ECU, the signal input part of described ECU is connected with the pressure-temperature sensor that is installed on the suction tude and the speed probe that is installed on the motor, and the signal output part of described ECU is connected to described jet final controlling element and described electronic speed regulation Injection Pump.
2. duel fuel engine as claimed in claim 1 is characterized in that: also be provided with mechanical adjustable speed drive on the described electronic speed regulation Injection Pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220604418XU CN202867007U (en) | 2012-11-16 | 2012-11-16 | Dual-fuel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220604418XU CN202867007U (en) | 2012-11-16 | 2012-11-16 | Dual-fuel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867007U true CN202867007U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220604418XU Expired - Fee Related CN202867007U (en) | 2012-11-16 | 2012-11-16 | Dual-fuel motor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821652A (en) * | 2013-11-18 | 2014-05-28 | 中国北车集团大连机车车辆有限公司 | Diesel and natural gas dual-fuel engine starting and jetting system and control method |
| CN104033256A (en) * | 2014-05-06 | 2014-09-10 | 南京盖驰动力科技有限公司 | Control system and method of oil and gas dual-fuel engine with oil supplied by mechanical pump |
| CN104742727A (en) * | 2013-12-31 | 2015-07-01 | 天津建筑机械厂 | Tracked dual-fuel bulldozer |
| CN104863730A (en) * | 2015-05-15 | 2015-08-26 | 隆鑫通用动力股份有限公司 | Switching type fuel supply system, engine and generator unit |
| CN106523146A (en) * | 2016-12-19 | 2017-03-22 | 四川中车玉柴发动机股份有限公司 | Dual-fuel locomotive engine |
| CN111605398A (en) * | 2020-06-10 | 2020-09-01 | 广州达都动力科技有限公司 | Oil-gas hybrid power optimization equipment |
-
2012
- 2012-11-16 CN CN201220604418XU patent/CN202867007U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821652A (en) * | 2013-11-18 | 2014-05-28 | 中国北车集团大连机车车辆有限公司 | Diesel and natural gas dual-fuel engine starting and jetting system and control method |
| CN103821652B (en) * | 2013-11-18 | 2016-01-20 | 中国北车集团大连机车车辆有限公司 | Diesel-CNG dual fuel engine starts gas ejecting system and controlling method |
| CN104742727A (en) * | 2013-12-31 | 2015-07-01 | 天津建筑机械厂 | Tracked dual-fuel bulldozer |
| CN104033256A (en) * | 2014-05-06 | 2014-09-10 | 南京盖驰动力科技有限公司 | Control system and method of oil and gas dual-fuel engine with oil supplied by mechanical pump |
| CN104863730A (en) * | 2015-05-15 | 2015-08-26 | 隆鑫通用动力股份有限公司 | Switching type fuel supply system, engine and generator unit |
| CN104863730B (en) * | 2015-05-15 | 2018-07-27 | 隆鑫通用动力股份有限公司 | Suitching type fuel system, engine and generating set |
| CN106523146A (en) * | 2016-12-19 | 2017-03-22 | 四川中车玉柴发动机股份有限公司 | Dual-fuel locomotive engine |
| CN111605398A (en) * | 2020-06-10 | 2020-09-01 | 广州达都动力科技有限公司 | Oil-gas hybrid power optimization equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |