CN2858975Y - Electric injection controller for dual-fuel engine - Google Patents
Electric injection controller for dual-fuel engine Download PDFInfo
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- CN2858975Y CN2858975Y CN 200520200526 CN200520200526U CN2858975Y CN 2858975 Y CN2858975 Y CN 2858975Y CN 200520200526 CN200520200526 CN 200520200526 CN 200520200526 U CN200520200526 U CN 200520200526U CN 2858975 Y CN2858975 Y CN 2858975Y
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- injection
- fuel supply
- controller
- supply system
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The utility model discloses an electric injection controller for dual-fuel engine comprising a system controller, a diesel engine system, and a gaseous fuel supply system. The gaseous fuel tank of the gaseous fuel supply system is connected to a mixer linked to diesel engine system and a turbocharger. A rotation speed sensor, a temperature sensor, a pressure sensor and a position sensor are disposed in the system. The number of injection valves of the gaseous fuel supply system ranges from 1 to 12, and the output signal of the system controller are output to a throttle actuator, a high pressure on-off valve, a low pressure on-off valve, and the injection valve. The utility model determines control parameters by the software of the system controller according to the working parameters of engine and throttle position commands to control the injection amount of gaseous fuel and diesel oil, and realizes digital control of the dual-fuel engine system. The utility model has advantages of high control precision, easy flow adjustment, simple structure, low manufacturing cost and safe use.
Description
Technical field:
The utility model relates to a kind of duel fuel engine electric injection system control gear that is used for the dual-fuel automobile motor, belongs to the dual-fuel automobile technical field of engines.
Background technique:
The principle of diesel oil-double fuel electric injection system allows internal-combustion engine with two kinds of fuel synchronous workings exactly.Diesel oil-natural gas double-fuel electric injection system can install the vaporized fuel supply system additional on existing diesel engine, single diesel engine is converted into duel fuel engine.Diesel oil becomes the pilot fuel that is used to light vaporized fuel under the compressive state and the oiling agent of parts.In present normally used diesel oil-natural gas double fuel engine, there is following problem:
One, aspect the control of diesel oil amount, generally all be the diesel injection amount to be controlled by mechanical mechanism restriction diesel fuel injection pump throttle position, therefore only can carry out limiting the quantity of of a certain value to the diesel injection amount, can not regulate the diesel oil fuel injection quantity according to the variation of load, its control accuracy is lower, and can not realize directly digital control.
Two, aspect vaporized fuel control
At present, vaporized fuel electric controlled injection valve used in the prior art mainly contains two classes, and a class is to use the existing electric-controlled fuel injector of petrol engine as fuel gas injection valve, and another kind of is the fuel gas injection valve that designs for combustion gas specially.First kind fuel gas injection valve is the gasoline electric-controlled fuel injector owing to what adopt, and the latus rectum of control combustion gas circulation is generally less, thereby can't satisfy the combustion gas needs than high power engine; Though and second class is the combustion gas specialized designs, ubiquity accuracy of manufacturing and is required height, makes problems such as difficulty, cost height; And the electromagnet in the existing electric controlled injection valve generally adopts thrust to make magnet control tapering valve, and thrust makes electromagnet not only exist many, the baroque problems of moving element, and because the thrust of electromagnet makes tapering valve and its outbreak produce bigger impact force easily, thereby also exist problems such as workability is lower, the easy damage of valve.And existing vaporized fuel supply system is not high enough to the control accuracy of injection of gaseous fuel amount, causes engine load to change when rapid, and the flow adjustment of vaporized fuel is quick inadequately.And when engine temperature was higher, the vaporized fuel supply system was prone to accidents.
Summary of the invention:
The purpose of this utility model is: a kind of control accuracy height is provided, is easy to that flow adjustment, structure are simple, low cost of manufacture, safer duel fuel engine electric injection system control gear, to overcome the deficiencies in the prior art.
The utility model is achieved in that it comprises SC system controller (1), diesel engine system (2) and gaseous state fuel supply system (3), the vaporized fuel jar (4) of vaporized fuel supply system (3) is connected to mixer (8) by high-voltage switch gear valve (5), reduction valve (14), lower pressure switch valve (6) and injection valve (7), on mixer (8), be connected with turbosupercharger (9), and mixer (8) is connected to diesel engine system (2) by pipeline; On diesel engine system (2), be provided with speed probe (10) and temperature transducer (11), on turbosupercharger (9), be provided with pressure transducer (12), be provided with position transducer (13) on the throttle of diesel engine system (2), the signal conveys of speed probe (10), temperature transducer (11), pressure transducer (12) and position transducer (13) is to SC system controller (1); Injection valve (7) in the vaporized fuel supply system (3) is 1～12, and the output signal of SC system controller (1) is delivered to the throttle actuator (16) of diesel engine system (2) and high-voltage switch gear valve (5), lower pressure switch valve (6) and the injection valve (7) of gaseous state fuel supply system (3) respectively.
Above-mentioned duel fuel engine electric injection system control gear, between SC system controller (1) and throttle actuator (16), high-voltage switch gear valve (5) and lower pressure switch valve (6), also be provided with the sub-controller (15) that is used to control the vaporized fuel ratio, the output signal of SC system controller (1) is delivered to sub-controller (15) earlier, and the output signal of sub-controller (15) is delivered to the throttle actuator (16) of diesel engine system (2) and the high-voltage switch gear valve (5) and the lower pressure switch valve (6) of gaseous state fuel supply system (3) again; The turbosupercharger (9) of vaporized fuel supply system (3) is provided with the filter cleaner that filter precision is 0.3 μ (17); The injecting gaseous fuels injection pressure of each injection valve (7) in the vaporized fuel supply system (3) is 0.4Mpa.
Owing to adopted such scheme, the utility model is according to the engine operating parameter and the throttle position instruction of each sensor impression, software by SC system controller is determined Control Parameter, the vaporized fuel of control duel fuel engine and the emitted dose of diesel oil, and adopt digital control to the actuating device of diesel engine system and gaseous state fuel supply system.The utility model adopts the throttle actuator of SC system controller control available engine, throttle actuator control accelerator rod, or control the position of oil pump ratch by the control step motor, limiting the emitted dose of diesel oil, and increase or reduce the emitted dose of fuel oil according to change in rotational speed.Vaporized fuel is ejected into the intake duct of motor by vaporized fuel/air mixer because vaporized fuel has certain pressure and is injected in the mixer, when entering air stream, the vaporized fuel disturbance air, make to have the good mixing effect each other.In the vaporized fuel supply system, the utility model has adopted a plurality of injection valves to participate in the mode of work successively, thereby has improved the control accuracy of whole system work, and the flow adjustment of vaporized fuel also more fast, conveniently.In order to revise the influence of atmospheric pressure variation to engine performance, this system has adopted air inlet pressure sensor, and controller is revised the emitted dose of vaporized fuel, thereby obtained desirable air fuel ratio according to the variation of the force value of this sensor impression.For fear of the damage to motor, this system is provided with exhaust gas temperature sensor, is used for the working state of monitor engine.When engine exhaust temperature surpassed the trouble free service delivery temperature, system can automatically switch to mode of operation full diesel oil mode of operation, makes the use of motor safer.
Description of drawings:
Accompanying drawing 1 is a structural principle schematic representation of the present utility model;
Accompanying drawing 2 increases structural principle schematic representation behind the sub-controller for the utility model.
Embodiment:
Embodiment of the present utility model: go up installation one cover vaporized fuel supply system (3) in existing diesel engine system (2), and a SC system controller (1) is installed, SC system controller (1) can adopt 80196 microprocessors of the prior art, the vaporized fuel jar (4) of vaporized fuel supply system (3) is passed through high-voltage switch gear valve (5), reduction valve (14), lower pressure switch valve (6) and injection valve (7) are connected to mixer (8), a reduction valve (14) is installed in vaporized fuel supply system (3), can limit the jet pressure of vaporized fuel, guarantee the Security of each parts of vaporized fuel supply system (3); Go up a connection turbosupercharger (9) at mixer (8), and mixer (8) is connected to diesel engine system (2) by pipeline; Go up the temperature transducer (11) that installation is used to measure the speed probe (10) of engine speed and is used to measure engine exhaust temperature in diesel engine system (2), go up setting pressure sensor (12) in turbosupercharger (9), be used to measure suction pressure, mounting point sensor (13) on the throttle of diesel engine system (2), with the signal conveys of speed probe (10), temperature transducer (11), pressure transducer (12) and position transducer (13) to SC system controller (1); Injection valve (7) in the vaporized fuel supply system (3) is 1～12, and the quantity of injection valve (7) can determine that the power of diesel engine system (2) is big more according to the watt level of diesel engine system (2), and required injection valve (7) is many more; Injection valve (7) can adopt the PWM-type injection valve of existing market, and this PWM-type injection valve adopts pulse signal control, and it is simple in structure, reliability is higher, be easy to the flow fuel adjustment; The output signal of SC system controller (1) is delivered to the throttle actuator (16) of diesel engine system (2) and high-voltage switch gear valve (5), lower pressure switch valve (6) and the injection valve (7) of gaseous state fuel supply system (3) respectively; In order to reach ideal control effect, a sub-controller (15) that is used to control the vaporized fuel ratio also is installed between SC system controller (1) and throttle actuator (16), high-voltage switch gear valve (5) and lower pressure switch valve (6), the output signal of SC system controller (1) is delivered to sub-controller (15) earlier, and the output signal of sub-controller (15) is delivered to the throttle actuator (16) of diesel engine system (2) and the high-voltage switch gear valve (5) and the lower pressure switch valve (6) of gaseous state fuel supply system (3) again; Sub-controller (15) can adopt the MC68HC908GP32 processor of selling on the existing market, is specifically designed to handle the emitted dose of calculating vaporized fuel and diesel oil input motor.In order to guarantee the reliability of system unit, the turbosupercharger (9) of vaporized fuel supply system (3) goes up filter precision is installed is the filter cleaner (17) of 0.3 μ; And the injecting gaseous fuels injection pressure of each injection valve (7) in the vaporized fuel supply system (3) is set at 0.4Mpa.
During the utility model work, the engine oil door position signal that SC system controller (1) transports with position transducer (13) is a load foundation of determining motor, and simultaneously according to speed probe (10), the engine speed that temperature transducer (11) and pressure transducer (12) transport, the parameter of engine exhaust temperature and engine charge pressure, determine the emitted dose of vaporized fuel and the input quantity of diesel oil, simultaneously control signal is delivered to the high-voltage switch gear valve (5) of vaporized fuel supply system (3) respectively, reduction valve (14), the throttle actuator (16) of lower pressure switch valve (6) and injection valve (7) and diesel engine system (2), vaporized fuel supply system (3) is sent to vaporized fuel in 1～12 injection valve (7) by high-voltage switch gear valve (5) and lower pressure switch valve (6), injection valve (7) is sent into vaporized fuel in the mixer (8) with after the air mixing and is ejected in the motor again, is ejected into diesel oil ignited by diesel engine system (2) input of vaporized fuel in the motor and AIR MIXTURES.By the parameter signal that receives, according to the difference of load, the injection of gaseous fuel amount that the supply of the strict restriction of SC system controller (1) diesel oil and control are ejected into motor, the vaporized fuel substitution rate under maximum load can reach 80%.In order to improve the control accuracy of injection of gaseous fuel amount, 1～12 injection valve (7) in the vaporized fuel supply system (3) can be according to required injection of gaseous fuel amount, surpass the capacity of opened injection valve (7) when the injection of gaseous fuel amount after, open next injection valve (7) again, open injection valve (7) so respectively successively, promptly when required injection of gaseous fuel amount is low more, the injection valve of opening (7) quantity is few more, when required injection of gaseous fuel amount was high more, the injection valve of opening (7) quantity was many more.
By receiving the signal of each sensor, SC system controller (1) can accurately limit the supply of diesel oil and be ejected into the injection of gaseous fuel amount of motor.Owing to adopted pressure transducer (12), the variation of the suction pressure that is used to experience can be revised the emitted dose of vaporized fuel, obtains desirable air fuel ratio.For fear of damage to motor, also be provided with temperature transducer (11), be used for the working state of monitor engine.When engine exhaust temperature surpassed the trouble free service delivery temperature, system can automatically switch to mode of operation full diesel oil mode of operation.When full diesel oil mode of operation, it is identical with the mode of operation of existing diesel engine that the motor that the utility model device is installed can be controlled its mode of operation by SC system controller (1).
Claims (4)
1. duel fuel engine electric injection system control gear, it comprises SC system controller (1), diesel engine system (2) and gaseous state fuel supply system (3), it is characterized in that: the vaporized fuel jar (4) of vaporized fuel supply system (3) is connected to mixer (8) by high-voltage switch gear valve (5), reduction valve (14), lower pressure switch valve (6) and injection valve (7), on mixer (8), be connected with turbosupercharger (9), and mixer (8) is connected to diesel engine system (2) by pipeline; On diesel engine system (2), be provided with speed probe (10) and temperature transducer (11), on turbosupercharger (9), be provided with pressure transducer (12), be provided with position transducer (13) on the throttle of diesel engine system (2), the signal conveys of speed probe (10), temperature transducer (11), pressure transducer (12) and position transducer (13) is to SC system controller (1); Injection valve (7) in the vaporized fuel supply system (3) is 1～12, and the output signal of SC system controller (1) is delivered to the throttle actuator (16) of diesel engine system (2) and high-voltage switch gear valve (5), lower pressure switch valve (6) and the injection valve (7) of gaseous state fuel supply system (3) respectively.
2. duel fuel engine electric injection system control gear according to claim 1, it is characterized in that: between SC system controller (1) and throttle actuator (16), high-voltage switch gear valve (5) and lower pressure switch valve (6), also be provided with the sub-controller (15) that is used to control the vaporized fuel ratio, the output signal of SC system controller (1) is delivered to sub-controller (15) earlier, and the output signal of sub-controller (15) is delivered to the throttle actuator (16) of diesel engine system (2) and the high-voltage switch gear valve (5) and the lower pressure switch valve (6) of gaseous state fuel supply system (3) again.
3. duel fuel engine electric injection system control gear according to claim 1 is characterized in that: the turbosupercharger (9) of vaporized fuel supply system (3) is provided with the filter cleaner that filter precision is 0.3 μ (17).
4. duel fuel engine electric injection system control gear according to claim 1 is characterized in that: the injecting gaseous fuels injection pressure of each injection valve (7) in the vaporized fuel supply system (3) is 0.4Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200526 CN2858975Y (en) | 2005-07-21 | 2005-07-21 | Electric injection controller for dual-fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200526 CN2858975Y (en) | 2005-07-21 | 2005-07-21 | Electric injection controller for dual-fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858975Y true CN2858975Y (en) | 2007-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200526 Expired - Fee Related CN2858975Y (en) | 2005-07-21 | 2005-07-21 | Electric injection controller for dual-fuel engine |
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| CN (1) | CN2858975Y (en) |
Cited By (4)
| 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 |
| CN102695865A (en) * | 2010-12-01 | 2012-09-26 | 丰田自动车株式会社 | Device for controlling bi-fuel engine |
| RU2465478C1 (en) * | 2011-07-12 | 2012-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенская государственная сельскохозяйственная академия" | Dual-fuel diesel engine feed system |
| CN104879244A (en) * | 2015-05-26 | 2015-09-02 | 北京扬德环境科技股份有限公司 | Electronic injection gasoline combustion-supporting device and method for methane generator set |
-
2005
- 2005-07-21 CN CN 200520200526 patent/CN2858975Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695865A (en) * | 2010-12-01 | 2012-09-26 | 丰田自动车株式会社 | Device for controlling bi-fuel engine |
| 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 |
| RU2465478C1 (en) * | 2011-07-12 | 2012-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенская государственная сельскохозяйственная академия" | Dual-fuel diesel engine feed system |
| CN104879244A (en) * | 2015-05-26 | 2015-09-02 | 北京扬德环境科技股份有限公司 | Electronic injection gasoline combustion-supporting device and method for methane generator set |
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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: CANTON DOWAY COSTUMES CO., LTD. Free format text: FORMER OWNER: GUIZHOU HONGHUA SCIENCE DEVELOPMENT CO., LTD. Effective date: 20080125 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080125 Address after: 6 floor, No. three, Lane nine, right North First Street, Wuyang new town temple, Guangzhou, Yuexiu District: 510600 Patentee after: Guangzhou Do-win Fashion Co., Ltd. Address before: No. 80 middle Ruijin Road, Guizhou, Guiyang Province, China: 550003 Patentee before: Honghua Science &. Technology Development Co., Ltd., Guizhou |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HONGHUA HEWEI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GUANGZHOU DUOWEI GARMENT CO., LTD. Effective date: 20110708 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510600 6/F, NO. 9, LANE 3, SIYOUBEI 1ST STREET, WUYANGXINCHENG, YUEXIU DISTRICT, GUANGZHOU CITY TO: 100044 BEIJING HONGHUA HEWEI ENERGY SCIENCE AND TECHNOLOGY CO., LTD., 413A, ZHONGYI BUILDING, NO. 6, XIZHIMEN OUTER STREET, XICHENG DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110708 Address after: 100044 Beijing City Zhongyi Building No. 6 Xicheng District Street Xizhimen 413A Beijing Honghua hyvee Energy Technology Co Ltd Patentee after: Beijing Honghua hyvee Energy Technology Co Ltd Address before: 510600, Guangzhou, Yuexiu District Wuyang Metro Temple right North First Street, Lane nine, No. 6, building three Patentee before: Guangzhou Do-win Fashion Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING FORTUNE HONGHUA POWE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING HONGHUA HEWEI ENERGY TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100101 Beijing City, Chaoyang District Beichen Road No. 8 Building No. 1 (Huixin building) room 911 building B Patentee after: Beijing Fudi Honghua power technology limited liability company Address before: 100044 Beijing City Zhongyi Building No. 6 Xicheng District Street Xizhimen 413A Beijing Honghua hyvee Energy Technology Co Ltd Patentee before: Beijing Honghua hyvee Energy Technology Co Ltd |
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| ASS | Succession or assignment of patent right |
Owner name: FUDI HONGHUA POWER (WUHAN) CO., LTD. Free format text: FORMER OWNER: BEIJING FORTUNE HONGHUA POWE TECHNOLOGY CO., LTD. Effective date: 20140508 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100101 CHAOYANG, BEIJING TO: 430223 WUHAN, HUBEI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140508 Address after: 430223 science and Technology Park, East Lake Development Zone, Wuhan City, Hubei Province Patentee after: Richearth Red China Power (Wuhan) limited liability company Address before: 100101 Beijing City, Chaoyang District Beichen Road No. 8 Building No. 1 (Huixin building) room 911 building B Patentee before: Beijing Fudi Honghua power technology limited liability company |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20140721 |
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| EXPY | Termination of patent right or utility model |