CN103047059A - Electronic-control fuel jetting system of engine - Google Patents
Electronic-control fuel jetting system of engine Download PDFInfo
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- CN103047059A CN103047059A CN2013100083230A CN201310008323A CN103047059A CN 103047059 A CN103047059 A CN 103047059A CN 2013100083230 A CN2013100083230 A CN 2013100083230A CN 201310008323 A CN201310008323 A CN 201310008323A CN 103047059 A CN103047059 A CN 103047059A
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Abstract
The invention relates to an electronic-control fuel jetting system of engine of a single-cylinder wind-cooling diesel engine. The system comprises an electric oil transporting pump, an oil transporting tube, an electronic-control oil jetting pump, a high-pressure oil tube, an electronic-control oil jetting device, an oil inlet metering valve and an electronic control unit, wherein the oil inlet metering valve is installed on the electronic-control oil jetting pump and is used for adjusting the oil pressure of an oil storing cavity of the electronic-control oil jetting pump, the output end of the electric oil transporting pump is connected to the inlet end of the electronic-control oil jetting pump through the oil transporting tube, the outlet end of the electronic-control oil jetting pump is connected to the inlet end of the electronic-control oil jetting device through the high-pressure oil tube, the electronic control unit is connected to the oil inlet metering valve through an electronic-control circuit, and the electronic control unit is connected to the electric oil transporting pump through the electronic-control circuit. The electronic-control oil jetting device can jet the fuel under the high pressure of the pump end, and the system is economical, capable of reducing the discharging quantity, automatic in control and high in reliability.
Description
Technical field
The present invention relates to a kind of single-cylinder air-cooled diesel engine electric control fuel oil jet system, the invention belongs to technical field of internal combustion engines.
Background technique
Traditional diesel fuel injection system is mechanical type, and the oil pressure size is wayward, so that the discharging of diesel engine is higher, 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, improve Economy, operation auto-control, engine electric control fuel oil spraying system that reliability is higher.
According to technological scheme provided by the invention, described engine electric control fuel oil spraying system, comprise electrically operated fuel pump, transport pipe, electrical control oil spray pump, high-pressure oil pipe, electric-controlled fuel injector, inlet metering valve and electronic control unit, at electrical control oil spray pump the inlet metering valve is installed, the inlet metering valve can be regulated the oil pressure in the pressure accumulation chamber of electrical control oil spray pump; The outlet end of electrically operated fuel pump links to each other by transport pipe with the entrance point of electrical control oil spray pump, and the outlet end of electrical control oil spray pump links to each other by high-pressure oil pipe with the entrance point of electric-controlled fuel injector; Described electronic control unit links to each other by automatically controlled circuit with the inlet metering valve, and electronic control unit links to each other by automatically controlled circuit with electric-controlled fuel injector.
The present invention has guaranteed electric-controlled fuel injector injected fuel under higher pump end pressure, obtains good Economy, and the present invention has reduced discharging, improved Economy, and the present invention operates auto-control, reliability is higher.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of electrical control oil spray pump among the present invention.
Embodiment
The invention will be further described below in conjunction with instantiation.
As shown in the figure, this engine electric control fuel oil spraying system, comprise electrically operated fuel pump 1, transport pipe 2, electrical control oil spray pump 3, high-pressure oil pipe 4, electric-controlled fuel injector 5, inlet metering valve 9 and electronic control unit 6, at electrical control oil spray pump 3 inlet metering valve 9 is installed, inlet metering valve 9 can be regulated the oil pressure in the pressure accumulation chamber 8 of electrical control oil spray pump 3; The outlet end of electrically operated fuel pump 1 links to each other by transport pipe 2 with the entrance point of electrical control oil spray pump 3, and the outlet end of electrical control oil spray pump 3 links to each other by high-pressure oil pipe 4 with the entrance point of electric-controlled fuel injector 5; Various kinds of sensors 7 links to each other with electronic control unit 6, and described electronic control unit 6 and inlet metering valve 9 link to each other by automatically controlled circuit, and electronic control unit 6 and electric-controlled fuel injector 5 link to each other by automatically controlled circuit.
Electrically operated fuel pump 1 is installed in the front end of electrical control oil spray pump 3, by the open and close of storage battery control electrically operated fuel pump 1, for electrical control oil spray pump 3 provides low-voltage fuel.Electrical control oil spray pump 3 is by the camshaft actuated of motor, and camshaft is by the crank-driven of motor.Engine cam whenever turns around, and pressurization fuel oil of plunger pumping also is stored in the pressure accumulation chamber 8, and the oil mass in the pressure accumulation chamber 8 can be by 9 controls of inlet metering valve.
Electronic control unit (ECU) 6 gathers 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 delivery, oil pressure, oil spout angle, fuel injection quantity and oil sprayer rule are regulated by demand feedback.
Various kinds of sensors 7 comprises speed probe, oil temperature sensor, oil pressure sensor etc.Speed probe collection engine rotational speed signal is passed to electronic control unit (ECU) 6 and is read demarcation MAP figure.Oil temperature sensor gathers the engine motor oil temperature and passes 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 gathers the engine motor oil temperature and passes 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 electrical control oil spray pump 3 out from fuel tank, and in pressure accumulation chamber 8, the fuel oil in the pressure accumulation chamber 8 is sent into high pressure fuel electric-controlled fuel injector 5 by high-pressure oil pipe 4 to electrical control oil spray pump 3 again with the fuel oil pressurized storage.
High pressure in the pressure accumulation chamber 8 of electrical control oil spray pump 3 is directly used in injection, be to continue high pressure in the pressure accumulation chamber 8, and the oil pressure size in the pressure accumulation chamber 8 can be controlled by inlet metering valve 9.Electric control fuel oil jet system of the present invention can carry out free adjusting to the oil pressure in the pressure accumulation chamber 8 according to the requirement of engine load conditions and Economy and emission performance, has especially optimized the low-speed performance of motor.By the electromagnetic valve injection timing on the electric-controlled fuel injector 5, emitted dose and spray speed, the interval of main injection under the different operating modes of all right free adjusting.
Claims (1)
1. engine electric control fuel oil spraying system, it is characterized in that: comprise electrically operated fuel pump (1), transport pipe (2), electrical control oil spray pump (3), high-pressure oil pipe (4), electric-controlled fuel injector (5), inlet metering valve (9) and electronic control unit (6), at electrical control oil spray pump (3) inlet metering valve (9) is installed, inlet metering valve (9) can be regulated the oil pressure in the pressure accumulation chamber (8) of electrical control oil spray pump (3); The outlet end of electrically operated fuel pump (1) links to each other by transport pipe (2) with the entrance point of electrical control oil spray pump (3), and the outlet end of electrical control oil spray pump (3) links to each other by high-pressure oil pipe (4) with the entrance point of electric-controlled fuel injector (5); Described electronic control unit (6) links to each other by automatically controlled circuit with inlet metering valve (9), and electronic control unit (6) links to each other by automatically controlled circuit with electric-controlled fuel injector (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100083230A CN103047059A (en) | 2013-01-10 | 2013-01-10 | Electronic-control fuel jetting system of engine |
| PCT/CN2013/085525 WO2014107980A1 (en) | 2013-01-10 | 2013-10-18 | Electronically controlled fuel injection system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100083230A CN103047059A (en) | 2013-01-10 | 2013-01-10 | Electronic-control fuel jetting system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103047059A true CN103047059A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100083230A Pending CN103047059A (en) | 2013-01-10 | 2013-01-10 | Electronic-control fuel jetting system of engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103047059A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321769A (en) * | 2013-07-10 | 2013-09-25 | 无锡开普动力有限公司 | Fuel injection system of electronic control unit pump |
| WO2014107980A1 (en) * | 2013-01-10 | 2014-07-17 | 无锡开普机械有限公司 | Electronically controlled fuel injection system of engine |
| CN106289628A (en) * | 2016-07-29 | 2017-01-04 | 中国北方发动机研究所(天津) | A kind of pressure On-Line Dynamic Monitoring device of diesel engine fuel-firing oil supply system |
| CN107664067A (en) * | 2016-07-29 | 2018-02-06 | 常柴股份有限公司 | Single cylinder common rail 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 |
Citations (8)
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| US6526948B1 (en) * | 1998-03-02 | 2003-03-04 | Cummins, Inc. | Apparatus for diagnosing failures and fault conditions in a fuel system of an internal combustion engine |
| CN1576567A (en) * | 2003-06-27 | 2005-02-09 | 株式会社电装 | Common rail type fuel injection system |
| CN1664350A (en) * | 2005-03-25 | 2005-09-07 | 清华大学 | Electric control common-rail valve-nozzle injection system |
| CN1752430A (en) * | 2004-09-24 | 2006-03-29 | 株式会社电装 | Flow control valve |
| CN101050734A (en) * | 2007-01-19 | 2007-10-10 | 清华大学 | High pressure co-rail electric control fuel injection system |
| CN101936244A (en) * | 2010-04-29 | 2011-01-05 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Internal combustion engine high pressure fuel system |
| CN102425516A (en) * | 2011-11-03 | 2012-04-25 | 北京理工大学 | Multi-valve oil spraying system and multi-valve oil spraying method |
| CN203098109U (en) * | 2013-01-10 | 2013-07-31 | 无锡开普机械有限公司 | Engine electronic fuel injection system |
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2013
- 2013-01-10 CN CN2013100083230A patent/CN103047059A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6526948B1 (en) * | 1998-03-02 | 2003-03-04 | Cummins, Inc. | Apparatus for diagnosing failures and fault conditions in a fuel system of an internal combustion engine |
| CN1576567A (en) * | 2003-06-27 | 2005-02-09 | 株式会社电装 | Common rail type fuel injection system |
| CN1752430A (en) * | 2004-09-24 | 2006-03-29 | 株式会社电装 | Flow control valve |
| CN1664350A (en) * | 2005-03-25 | 2005-09-07 | 清华大学 | Electric control common-rail valve-nozzle injection system |
| CN101050734A (en) * | 2007-01-19 | 2007-10-10 | 清华大学 | High pressure co-rail electric control fuel injection system |
| CN101936244A (en) * | 2010-04-29 | 2011-01-05 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Internal combustion engine high pressure fuel system |
| CN102425516A (en) * | 2011-11-03 | 2012-04-25 | 北京理工大学 | Multi-valve oil spraying system and multi-valve oil spraying method |
| CN203098109U (en) * | 2013-01-10 | 2013-07-31 | 无锡开普机械有限公司 | Engine electronic fuel injection system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107980A1 (en) * | 2013-01-10 | 2014-07-17 | 无锡开普机械有限公司 | Electronically controlled fuel injection system of engine |
| CN103321769A (en) * | 2013-07-10 | 2013-09-25 | 无锡开普动力有限公司 | Fuel injection system of electronic control unit pump |
| CN106289628A (en) * | 2016-07-29 | 2017-01-04 | 中国北方发动机研究所(天津) | A kind of pressure On-Line Dynamic Monitoring device of diesel engine fuel-firing oil supply system |
| CN107664067A (en) * | 2016-07-29 | 2018-02-06 | 常柴股份有限公司 | Single cylinder common rail 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: 20130417 |