CN103321769A - Fuel injection system of electronic control unit pump - Google Patents
Fuel injection system of electronic control unit pump Download PDFInfo
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- CN103321769A CN103321769A CN2013102891097A CN201310289109A CN103321769A CN 103321769 A CN103321769 A CN 103321769A CN 2013102891097 A CN2013102891097 A CN 2013102891097A CN 201310289109 A CN201310289109 A CN 201310289109A CN 103321769 A CN103321769 A CN 103321769A
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- oil
- electronic control
- control unit
- pump
- fuel injection
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Abstract
The invention relates to a fuel injection system of an electronic control unit pump, wherein the fuel injection system of the electronic control unit pump is used on a single-cylinder air-cooled diesel engine. An oil inlet electromagnetic valve is installed on the electronic control unit pump, and timed and quantitative fuel injection of an oil injector is achieved through control over the opening time and the closing time of the oil inlet electromagnetic valve. The outlet end of an electric oil conveying pump is connected with the inlet end of the electronic control unit pump through an oil conveying pipe, and the outlet end of the electronic control unit pump is connected with the inlet end of the oil injector through a high-pressure oil pipe. A rotating speed sensor is connected with an electronic control unit, an engine oil temperature sensor is connected with the electronic control unit, an engine oil pressure sensor is connected with the electronic control unit, and the electronic control unit is connected with the oil inlet electromagnetic valve through an electronic control circuit. The fuel injection system of the electronic control unit pump ensures the timed and quantitative fuel injection of the oil injector, has good economical efficiency, reduces emission, and is automatic in operation control and high in reliability.
Description
Technical field
The present invention relates to a kind of single-cylinder air-cooled diesel engine fuel injection system, especially a kind of electronically controlled unit pump fuel injection system the invention belongs to technical field of internal combustion engines.
Background technique
Traditional diesel fuel injection system is mechanical type, and fuel injection quantity, injection timing can not in time be adjusted with the variation of rotating speed and load, make that the discharging of diesel engine is higher, and Economy is relatively poor.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can reduce discharging, raising Economy, operation control automation, the higher electronically controlled unit pump fuel injection system of reliability.
According to technological scheme provided by the invention, described electronically controlled unit pump fuel injection system, comprise electrically operated fuel pump, transport pipe, electronically controlled unit pump, high-pressure oil pipe, oil sprayer, electronic control unit, speed probe, oil-feed solenoid valve and oil temperature sensor and oil pressure sensor, at electronically controlled unit pump the oil-feed solenoid valve is installed, the moment of the open and close by control oil-feed solenoid valve realizes that oil sprayer carries out timing, the quantitative injection fuel oil, the outlet end of electrically operated fuel pump links to each other by transport pipe with the entrance point of electronically controlled unit pump, and the outlet end of electronically controlled unit pump links to each other by high-pressure oil pipe with the entrance point of oil sprayer; Described speed probe links to each other with electronic control unit, and oil temperature sensor links to each other with electronic control unit, and oil pressure sensor links to each other with electronic control unit,, electronic control unit links to each other by automatically controlled circuit with the oil-feed solenoid valve.
The present invention has guaranteed oil sprayer timing, quantitative injection fuel oil, obtains good and economic, and the present invention has reduced discharging, improved Economy, and the present invention operates the control automation, reliability is higher.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of electronically controlled unit pump among the present invention.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
This electronically controlled unit pump fuel injection system, comprise electrically operated fuel pump 1, transport pipe 2, electronically controlled unit pump 3, high-pressure oil pipe 4, oil sprayer 5, electronic control unit 6, speed probe 7, oil-feed solenoid valve 8 and oil temperature sensor 9 and oil pressure sensor 10, at electronically controlled unit pump 3 oil-feed solenoid valve 8 is installed, the moment of the open and close by control oil-feed solenoid valve 8 realizes that oil sprayer 5 carries out timing, the quantitative injection fuel oil, the outlet end of electrically operated fuel pump 1 links to each other by transport pipe 2 with the entrance point of electronically controlled unit pump 3, and the outlet end of electronically controlled unit pump 3 links to each other by high-pressure oil pipe 4 with the entrance point of oil sprayer 5; Described speed probe 7 links to each other with electronic control unit 6, and oil temperature sensor 9 links to each other with electronic control unit 6, and oil pressure sensor 10 links to each other with electronic control unit 6,, electronic control unit 6 and oil-feed solenoid valve 8 link to each other by automatically controlled circuit.
Electrically operated fuel pump 1 is installed in the front end of electronically controlled unit pump 3, by the open and close of storage battery control electrically operated fuel pump 1, for electronically controlled unit pump 3 provides low-voltage fuel.Electronically controlled unit pump 3 is by the camshaft actuated of motor, and camshaft is by the crank-driven of motor.Engine cam whenever turns around, pressurization fuel oil of plunger pumping, and the oil mass of pumping pressurization fuel oil can be controlled by the moment that oil-feed solenoid valve 8 opens and closes.
Electronic control unit (ECU) 6 is gathered motor and the automatical control system status parameter of each sensor monitoring, send accurate control signal by built-in control strategy and data M AP, and the driving solenoid valve produces electromagnetic force, move to drive actuation means, fuel injection quantity, injection timing and fuel injection characteristic are negated as required present adjusting.
Speed probe 7 collection engine cam tach signals are passed to electronic control unit (ECU) 6 and are read demarcation MAP figure; Oil temperature sensor 9 is gathered the engine motor oil temperature and is passed to electronic control unit (ECU) 6, sends when reaching the warning value that electronic control unit (ECU) 6 sets and reports to the police or autostop; Oil pressure sensor 10 is gathered the engine motor oil temperature and is passed to electronic control unit (ECU) 6, sends when reaching the warning value that electronic control unit (ECU) 6 sets and reports to the police or autostop.
Electrically operated fuel pump 1 is extracted fuel oil input electronically controlled unit pump 3 out from fuel tank, regulates the oil mass that enters electronically controlled unit pump 3 by control oil-feed solenoid valve 8, and electronically controlled unit pump 3 is sent high pressure fuel into oil sprayer 5 by high-pressure oil pipe 4.
Injection timing, fuel injection quantity and fuel injection characteristic that the moment that opens and closes by the oil-feed solenoid valve 8 of control on the electronically controlled unit pump 3 is regulated oil sprayer 5.Electronically controlled unit pump fuel injection system of the present invention can open and close oil-feed solenoid valve 8 according to the requirement of engine load conditions and Economy and emission performance and constantly carry out free adjusting, has especially optimized the low-speed performance of motor.By injection timing, the emitted dose of oil-feed solenoid valve 8 control oil sprayers 5, the interval of main injection under the different operating modes of all right free adjusting.
Claims (1)
1. electronically controlled unit pump fuel injection system, comprise electrically operated fuel pump (1), transport pipe (2), electronically controlled unit pump (3), high-pressure oil pipe (4), oil sprayer (5), electronic control unit (6), speed probe (7), oil-feed solenoid valve (8) and oil temperature sensor (9) and oil pressure sensor (10), it is characterized in that: at electronically controlled unit pump (3) oil-feed solenoid valve (8) is installed, moment of open and close by control oil-feed solenoid valve (8) realizes that oil sprayer (5) carries out timing, the quantitative injection fuel oil, the outlet end of electrically operated fuel pump (1) links to each other by transport pipe (2) with the entrance point of electronically controlled unit pump (3), and the outlet end of electronically controlled unit pump (3) links to each other by high-pressure oil pipe (4) with the entrance point of oil sprayer (5); Described speed probe (7) links to each other with electronic control unit (6), oil temperature sensor (9) links to each other with electronic control unit (6), oil pressure sensor (10) links to each other with electronic control unit (6), and electronic control unit (6) links to each other by automatically controlled circuit with oil-feed solenoid valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102891097A CN103321769A (en) | 2013-07-10 | 2013-07-10 | Fuel injection system of electronic control unit pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102891097A CN103321769A (en) | 2013-07-10 | 2013-07-10 | Fuel injection system of electronic control unit pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103321769A true CN103321769A (en) | 2013-09-25 |
Family
ID=49190753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102891097A Pending CN103321769A (en) | 2013-07-10 | 2013-07-10 | Fuel injection system of electronic control unit pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103321769A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555678A (en) * | 2016-12-02 | 2017-04-05 | 斯太尔动力（常州）发动机有限公司 | Diesel engine Unit injector fueller |
| CN108626045A (en) * | 2018-05-23 | 2018-10-09 | 无锡威孚高科技集团股份有限公司 | Trackless single cylinder electric control fuel oil jet system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB983148A (en) * | 1961-02-28 | 1965-02-10 | Dowty Fuel Syst Ltd | Engine fuel supply systems |
| CN2723713Y (en) * | 2004-08-11 | 2005-09-07 | 中国第一汽车集团公司 | Single pump type synthetic in-line pump |
| CN2767675Y (en) * | 2005-01-15 | 2006-03-29 | 孔麦所 | Middle and large scale multi-cylinder diesel engine protector |
| CN2792945Y (en) * | 2005-04-19 | 2006-07-05 | 王金生 | Ship with gas IC engine as power |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
| CN101922391A (en) * | 2010-08-23 | 2010-12-22 | 亚新科南岳（衡阳）有限公司 | Fuel jet electronic combination unit pump of diesel engine |
| CN201794696U (en) * | 2010-07-01 | 2011-04-13 | 中国一拖集团有限公司 | Low-emission four-cylinder electric control diesel engine and double-shaft balance mechanism thereof |
| CN103047059A (en) * | 2013-01-10 | 2013-04-17 | 无锡开普机械有限公司 | Electronic-control fuel jetting system of engine |
| CN203430672U (en) * | 2013-07-10 | 2014-02-12 | 无锡开普动力有限公司 | Electronic-unit-pump fuel injection system |
-
2013
- 2013-07-10 CN CN2013102891097A patent/CN103321769A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB983148A (en) * | 1961-02-28 | 1965-02-10 | Dowty Fuel Syst Ltd | Engine fuel supply systems |
| CN2723713Y (en) * | 2004-08-11 | 2005-09-07 | 中国第一汽车集团公司 | Single pump type synthetic in-line pump |
| CN2767675Y (en) * | 2005-01-15 | 2006-03-29 | 孔麦所 | Middle and large scale multi-cylinder diesel engine protector |
| CN2792945Y (en) * | 2005-04-19 | 2006-07-05 | 王金生 | Ship with gas IC engine as power |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
| CN201794696U (en) * | 2010-07-01 | 2011-04-13 | 中国一拖集团有限公司 | Low-emission four-cylinder electric control diesel engine and double-shaft balance mechanism thereof |
| CN101922391A (en) * | 2010-08-23 | 2010-12-22 | 亚新科南岳（衡阳）有限公司 | Fuel jet electronic combination unit pump of diesel engine |
| CN103047059A (en) * | 2013-01-10 | 2013-04-17 | 无锡开普机械有限公司 | Electronic-control fuel jetting system of engine |
| CN203430672U (en) * | 2013-07-10 | 2014-02-12 | 无锡开普动力有限公司 | Electronic-unit-pump fuel injection system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555678A (en) * | 2016-12-02 | 2017-04-05 | 斯太尔动力（常州）发动机有限公司 | Diesel engine Unit injector fueller |
| CN106555678B (en) * | 2016-12-02 | 2022-10-14 | 斯太尔动力（常州）发动机有限公司 | Oil supply device for pump nozzle of diesel engine |
| CN108626045A (en) * | 2018-05-23 | 2018-10-09 | 无锡威孚高科技集团股份有限公司 | Trackless single cylinder electric control fuel oil jet system |
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Application publication date: 20130925 |