CN201696151U - Fuel supply device of dual-fuel engine - Google Patents
Fuel supply device of dual-fuel engine Download PDFInfo
- Publication number
- CN201696151U CN201696151U CN2010200151780U CN201020015178U CN201696151U CN 201696151 U CN201696151 U CN 201696151U CN 2010200151780 U CN2010200151780 U CN 2010200151780U CN 201020015178 U CN201020015178 U CN 201020015178U CN 201696151 U CN201696151 U CN 201696151U
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- China
- Prior art keywords
- fuel
- engine
- valve
- injection valve
- gas 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
- 239000000446 fuel Substances 0.000 title claims abstract description 61
- 239000007924 injection Substances 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 23
- 239000002737 fuel gas Substances 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 abstract description 18
- 239000002283 diesel fuel Substances 0.000 abstract description 15
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000000295 fuel oil Substances 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 206010002820 Antisocial behaviour Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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)
Abstract
The utility model relates to a fuel supply device of a dual-fuel engine, which comprises a high pressure oil pipe connected to an oil injector on the engine, wherein the high pressure oil pipe is connected with the output end of an oil injection pump through a fuel oil control valve. The fuel supply device is characterized in that a fuel gas injection valve is arranged on the intake manifold of the engine in an inserting manner; the fuel gas injection valve is serially connected with a gas track, a pressure reducer, a high pressure cut-off valve and a gas storage bottle in sequence through a fuel gas pipeline; the fuel gas injection valve and the fuel oil control valve are connected with the control signal output end of a central control unit through line bundles respectively; and the control signal input end of the central control unit is connected with a fuel switch. The fuel supply device is applied to the modification of the prior diesel engine by mounting the sensor diesel oil control valve and the fuel gas injection valve on the exposed parts without needing to change the original basic parts of the engine. After modification, the dual fuel switching is achieved only by operating the dual fuel control switch, thereby implementing the closed-loop control of the combustion process of the engine and greatly reducing the emission of harmful gases.
Description
Technical field
The utility model relates to a kind of fuel supplying device of duel fuel engine.
Background technique
Duel fuel engine is meant the motor of making fuel with diesel oil or gasoline and inflammable gas.In recent years, raising along with people's environmental consciousness, restriction to vehicle tail waste gas is strengthened day by day, require the In-Use Motor Vehicles tail gas hazard-free of large quantities of adapted diesel engine to handle strong day by day, in these diesels engine for automobile, adopt diesel oil and gaseous fuel multifuel combustion, being the effective measures that reduce noxious emission, simply mixing and burn the gaseous fuel inefficiency, tail gas pollution is serious, is to the waste of the energy with to the irresponsibility of environment.
Summary of the invention
The purpose of this utility model provides a kind of fuel supplying device of duel fuel engine, makes things convenient for the In-Use Motor Vehicles motor and uses gaseous fuel, realizes the perfect combustion of combustion gas, reduces tail gas pollution.
For achieving the above object, the utility model is by the following technical solutions:
The fuel supplying device of a kind of duel fuel engine described in the utility model comprises the high-pressure oil pipe on the oil sprayer that is connected on the motor, high-pressure oil pipe is connected to the oil spout delivery side of pump by fuel regulator valve, it is characterized in that: on the air intake branch of motor, be fitted with fuel gas injection valve, fuel gas injection valve is by the gas pipeline gas rail of connecting successively, decompressor, high-pressure stop valve, air cylinder, fuel gas injection valve and fuel regulator valve are connected to the control signal output terminal of central unit respectively by wire harness, the control signal input end of central unit is connected with fuel shift switch.
The signals collecting end of central unit is connected with air inlet pressure sensor, outlet pipe lambda sensor, foot treadle position transducer, engine rotation speed sensor, CMPS Camshaft Position Sensor by wire harness.
After adopting technique scheme, the fuel supplying device of this duel fuel engine can be used for the repacking of existing diesel engine, and former motor basic part is not done change, only in the installation that exposes part enterprising line sensor diesel oil control valve and fuel gas injection valve.After the repacking, the discharge time of fuel oil and gaseous fuel and emitted dose are by the unified control of central unit ECU, the double fuel conversion only need be stirred the double fuel control switch and can be realized, engine combustion process is implemented closed loop control, reduces the discharge of harmful gases amount greatly.
Description of drawings
Fig. 1 is the structural representation of an embodiment's of the utility model oil supplying device;
Fig. 2 is the structural representation of air feeder;
Fig. 3 is the schematic diagram of control wiring.
Embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
As shown in drawings, the fuel supplying device of a kind of duel fuel engine described in the utility model comprises the high-pressure oil pipe 2 on the oil sprayer that is connected on the motor 1, high-pressure oil pipe 2 is connected to the output terminal of Injection Pump 4 by fuel regulator valve 3, as shown in Figure 1, the structure of this a part of oil supplying device and principle are known technology, are the oil feeding mechanisms of existing diesel engine.Diesel oil is delivered to the input end of Injection Pump 4 through filter cleaner by fuel tank, Injection Pump 4 is transported to fuel regulator valve 3 after diesel oil is improved pressure, fuel regulator valve 3 is according to the work order of central unit, at regular time and quantity high-pressure diesel is supplied with oil sprayer, oil sprayer sprays into cylinder and air mixing with diesel oil and evenly also burns near engine charge compression stroke top dead center.
As shown in Figure 2, on the air intake branch 5 of motor 1, be fitted with fuel gas injection valve 6, fuel gas injection valve 6 is by gas pipeline 7 connect successively gas rail 8, decompressor 9, high-pressure stop valve 10, air cylinder 11, fuel gas injection valve 6 and fuel regulator valve 3 are connected to the control signal output terminal of central unit ECU respectively by wire harness, the control signal input end of central unit ECU is connected with fuel shift switch 17.The effect of fuel shift switch 17 is to send two kinds of different working state instructions to central unit ECU, determines motor with diesel oil work, still with diesel oil and two kinds of fuel works of inflammable gas.Fuel shift switch 17 is transformed into startup running and warm-up the engine under the diesel oil working state.After the engine start, when gaseous fuel is sufficient, fuel shift switch 17 can be transformed into the double fuel working state, the controlling computer ECU of central authorities carries out operational analysis according to each data collected of data acquistion system, send control command, the fuel that fuel regulator valve 3 and fuel gas injection valve 6 carry out at regular time and quantity sprays, and guarantees that motor carries out work by demand.When gaseous fuel is not enough, only need move double fuel throw over switch 17 to the diesel oil working state, can realize by the double fuel working state to the diesel oil conversion of operation state, this moment, central controlling computer ECU stopped the work of fuel gas injection valve 6, only the fuel that is undertaken at regular time and quantity by fuel regulator valve 3 sprays, and guarantees normal working of engine.
Under the double fuel working state, pressurized fuel gas enters decompressor 9 by air cylinder 11 through high pressure cut-off electromagnetic valve 10, decompressor 9 is supplied with gas rail 8 with the pressure range that high-pressure gas is adjusted to engine demand, the outlet of the difference of gas rail 8 corresponding respectively the different cylinders of motor, gas rail 8 is with the number of cylinders demultiplexing pressure identical air-flow of combustion gas according to motor, be transported to fuel gas injection valve 6, fuel gas injection valve 6 is according to the work order of central unit ECU, near the air intake branch intake valve that combustion gas is injected to corresponding cylinder at regular time and quantity, enter engine cylinder and fully mix with air with air.
The signals collecting end of described central unit ECU is connected with air inlet pressure sensor 12, outlet pipe lambda sensor 13, foot treadle position transducer 14, engine rotation speed sensor 15, CMPS Camshaft Position Sensor 16 by wire harness.Wherein, engine rotation speed sensor 15 provides motor rotating speed at any time, determines that motor is in starting state or working state; CMPS Camshaft Position Sensor 16 is determined each work cycle oil spout of motor and jet time, guarantees suitable injection advance angle and spray into inflammable gas after the exhaust valve closing of intake process; Foot treadle position transducer 14 determines to spray into the quantity of diesel oil and inflammable gas; Whether outlet pipe lambda sensor 13 provides the content of oxygen in the exhaust, fully burn so that central unit ECU analyzes the fuel that sprays into.
Central unit ECU is according to the signal of each sensor acquisition, through operational analysis, fuel regulator valve 3 and fuel gas injection valve 6 are sent work order, fuel regulator valve 3 is supplied with oil sprayer at regular time and quantity with diesel oil and is sprayed into engine cylinder, and fuel gas injection valve 6 sprays into combustion gas the air intake branch of each cylinder correspondence at regular time and quantity.
In the present embodiment, can also connect gas quantity alarm 18 at the signals collecting end of central unit ECU.Gas quantity alarm 18 provides the data of residue combustion gas in the air cylinder 11, when the quantity of combustion gas in the air cylinder 11 is lower than setting value, alarm signal is provided, and perhaps direct instruction central unit ECU switches to the operating mode of motor under the diesel oil working state.
Claims (2)
1. the fuel supplying device of a duel fuel engine, comprise the high-pressure oil pipe (2) on the oil sprayer that is connected on the motor (1), high-pressure oil pipe (2) is connected to the output terminal of Injection Pump (4) by fuel regulator valve (3), it is characterized in that: on the air intake branch (5) of motor (1), be fitted with fuel gas injection valve (6), fuel gas injection valve (6) is by gas pipeline (7) the gas rail (8) of connecting successively, decompressor (9), high-pressure stop valve (10), air cylinder (11), fuel gas injection valve (6) and fuel regulator valve (3) are connected to the control signal output terminal of central unit (ECU) respectively by wire harness, the control signal input end of central unit (ECU) is connected with fuel shift switch (17).
2. the fuel supplying device of a kind of duel fuel engine according to claim 1, it is characterized in that: the signals collecting end of central unit (ECU) is connected with air inlet pressure sensor (12), outlet pipe lambda sensor (13), foot treadle position transducer (14), engine rotation speed sensor (15), CMPS Camshaft Position Sensor (16) by wire harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200151780U CN201696151U (en) | 2010-01-14 | 2010-01-14 | Fuel supply device of dual-fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200151780U CN201696151U (en) | 2010-01-14 | 2010-01-14 | Fuel supply device of dual-fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696151U true CN201696151U (en) | 2011-01-05 |
Family
ID=43397391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200151780U Expired - Fee Related CN201696151U (en) | 2010-01-14 | 2010-01-14 | Fuel supply device of dual-fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696151U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635450A (en) * | 2012-04-26 | 2012-08-15 | 奇瑞汽车股份有限公司 | Automobile dual-fuel switch control method and device |
| 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 |
| CN103498731A (en) * | 2013-10-23 | 2014-01-08 | 深圳市国炬天然气汽车技术有限公司 | Dual-fuel high-pressure common-rail engine fuel oil controller |
| CN104832306A (en) * | 2014-12-17 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle fuel injection control method and device |
-
2010
- 2010-01-14 CN CN2010200151780U patent/CN201696151U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102635450A (en) * | 2012-04-26 | 2012-08-15 | 奇瑞汽车股份有限公司 | Automobile dual-fuel switch control method and device |
| CN102635450B (en) * | 2012-04-26 | 2014-07-30 | 奇瑞汽车股份有限公司 | Automobile dual-fuel switch control method and device |
| CN103498731A (en) * | 2013-10-23 | 2014-01-08 | 深圳市国炬天然气汽车技术有限公司 | Dual-fuel high-pressure common-rail engine fuel oil controller |
| CN103498731B (en) * | 2013-10-23 | 2016-02-24 | 深圳市国炬天然气汽车技术有限公司 | Dual-fuel high-pressure common-rail engine fuel oil controller |
| CN104832306A (en) * | 2014-12-17 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle fuel injection control method and device |
| CN104832306B (en) * | 2014-12-17 | 2018-02-23 | 北汽福田汽车股份有限公司 | Motor vehicle fuel ejection control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUALING DIESEL ENGINE POWER CO., LTD., WEIFANG Free format text: FORMER OWNER: YU HONGLIANG Effective date: 20120401 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 261021 WEIFANG, SHANDONG PROVINCE TO: 261101 WEIFANG, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120401 Address after: 261101 Shandong city of Weifang province Hanting Weixian Road East Patentee after: Hualing Diesel Engine Power Co., Ltd., Weifang Address before: 261021 Shandong city of Weifang province Hanting Weixian Road East of Weifang Hualing Diesel Power Co. Ltd. Patentee before: Yu Hongliang |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fuel supply device of dual-fuel engine Effective date of registration: 20150827 Granted publication date: 20110105 Pledgee: China Co truction Bank Corp Weifang branch Pledgor: Weifang Hua Ling Diesel Engine Co., Ltd.|Yu Hongwei|Yu Hai Registration number: 2015980000211 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180613 Granted publication date: 20110105 Pledgee: China Co truction Bank Corp Weifang branch Pledgor: Hualing Diesel Engine Power Co., Ltd., Weifang|Yu Hongwei|Yu Hai Registration number: 2015980000211 |
|
| 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: 20110105 Termination date: 20180114 |