CN103063418A - Characteristic measurement device for oil mass measurement unit - Google Patents
Characteristic measurement device for oil mass measurement unit Download PDFInfo
- Publication number
- CN103063418A CN103063418A CN2012103653250A CN201210365325A CN103063418A CN 103063418 A CN103063418 A CN 103063418A CN 2012103653250 A CN2012103653250 A CN 2012103653250A CN 201210365325 A CN201210365325 A CN 201210365325A CN 103063418 A CN103063418 A CN 103063418A
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure
- fuel
- control
- unit
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a characteristic measurement device for an oil mass measurement unit, in particular to a characteristic testing device of a flow control valve on a high-pressure oil pump of a high-pressure common-rail fuel system of a diesel engine. The characteristic measurement device is characterized by comprising an oil tank, an oil pump, an oil inlet screw, a pressure storage cavity, a pressure sensor, a temperature sensor, a flowmeter, an overflow valve, a control actuation and a detection device. The oil mass measurement unit is an electromagnetic valve needed to be tested. The oil tank is connected with the oil pump which is connected to the pressure storage cavity through the oil inlet screw. The overflow valve used for controlling the intensity of pressure in the pressure storage cavity is installed on the pressure storage cavity. An oil outlet of the pressure storage cavity is connected to the oil mass measurement unit. The control actuation is connected with the oil mass measurement unit to input a control current. The detection device is connected with the control actuation. An oil outlet of the oil mass measurement unit is connected to the flowmeter through an oil pipe. The flowmeter is connected to the oil tank through an oil pipe. The pressure sensor and the temperature sensor are installed at the position of an oil inlet of the oil mass measurement unit. According to the characteristic measurement device, control of an electric current and voltage difference is achieved, and further, temperature, pressure and flow can be detected.
Description
Technical field
The present invention relates to a kind of diesel engine fuel oil characteristics of components measuring technology, be specifically related to the characteristic test device of flowrate control valve on the high-pressure oil pump of diesel high pressure common rail fuel system.
Background technology
Compare with machinery control, Electrocontrolled high-pressure common rail shows huge advantage in control accuracy.High-pressure oil pump can accurately be controlled the fuel oil that enters high-pressure common rail, and realizes the compression of this part fuel oil, forms high pressure fuel and is pressed into high pressure oil rail.A control assembly is installed in high-pressure oil pump, and these parts are again the MEUN valve the fuel gauging unit, be oil inlet quantity and the recirculating oil quantity of realizing the control high-pressure oil pump, thereby the control oil pump plunger satisfy the set pressure of high pressure co-rail system to the fuel delivery of oily rail.The fuel gauging unit is parts important in the high pressure co-rail system, and it is related to the control accuracy of rail pressure to the control accuracy of oil inlet quantity, the accuracy that fuel injector sprays.
The principle of work of fuel gauging unit as shown in Figure 2, the fuel gauging unit is a continuous position solenoid valve, be solenoid under the different functions of current, can produce different electromagnetic force F
1Thereby, balancing spring power F
2With fuel flow power and hydraulic coupling F
3, so that the control spool is parked under the different apertures.The control spool is parked in different apertures, and with so that the useful area of oil circuit through hole changes, this determines that high-pressure oil pump is to the fuel delivery of high pressure oil rail.
The conventional mechanical valve that is different from the mechanical alteration position, flow metering unit are to control spool displacement by the electromagnetic force of o.In use, the problem that has the electromagnetism sluggishness in the o, the fuel oil generation fuel oil hydraulic power that circulates simultaneously on valve also changes, therefore, the discharge characteristic of this flowrate control valve will and size of current, pressure reduction, fuel oil temperature that the variation tendency of electric current and rate of change, valve are imported and exported have relation.
Need a kind of device that the oil mass characteristic of high pressure co-rail system fuel gauging unit is tested, this device can be realized the control of electric current and pressure reduction, and can detected temperatures, pressure and flow.
Summary of the invention
Importance in view of the oil mass characteristic of fuel gauging unit in the high pressure co-rail system, the invention provides a kind of fuel gauging element characteristics proving installation, be used for the oil pump capacity of test oil mass metering units and the curved line relation of control size of current, inlet outlet pressure differential, and the different rate of change of test control electric current, fuel oil temperature obtain the oil mass characteristic levels of fuel gauging unit to the impact of fuel gauging unit oil pump capacity.
Fuel gauging element characteristics proving installation provided by the invention as shown in Figure 1, fuel gauging element characteristics proving installation is characterized in that: comprise fuel tank, oil pump, the oil-feed screw, pressure accumulation chamber, pressure transducer, temperature sensor, flowmeter, surplus valve, control drives, pick-up unit;
The fuel gauging unit is for needing the solenoid valve of test; Fuel tank connects oil pump, and oil pump is connected to the pressure accumulation chamber by the oil-feed screw, and the surplus valve for the pressure size in the control pressure accumulation chamber is installed on the pressure accumulation chamber; Pressure accumulation chamber oil-out is connected to the fuel gauging unit, and control drives and connects fuel gauging unit input control electric current, and pick-up unit connects control and drives; The oil-out of fuel gauging unit is connected to flowmeter by oil pipe, and flowmeter is connected to fuel tank by oil pipe; The oil-in place of fuel gauging unit is equipped with pressure transducer and temperature sensor.
Fuel gauging element characteristics proving installation provided by the invention, the electronics transfer pump that employing can be regulated pump oil rotating speed accurately control oil pump to the fuel delivery in pressure accumulation chamber, a surplus valve is housed on the pressure accumulation chamber, can regulate the fuel pressure in the chamber, realize the adjusting of cavity pressure and stable by the oil pressure that unloads of regulating pump speed and surplus valve.Because pressure accumulation chamber oil-out directly is connected by oil pipe with the oil-in of fuel gauging unit, the input pressure of fuel gauging unit equals the pressure of fuel oil in the pressure accumulation chamber, because the oil pressure that goes out of fuel gauging unit is environmental pressure, therefore can be poor by the inlet and outlet pressure of regulating the fuel pressure indirect regulation fuel gauging unit in the pressure accumulation chamber.Mounting temperature sensor and pressure transducer on the connected pipes of pressure accumulation chamber and fuel gauging unit, by the temperature sensor measurement fuel oil temperature, size and the fluctuation range of the inlet pressure by pressure sensor monitoring fuel gauging unit.The oil-out of fuel gauging unit is connected on the flowmeter, measures the oil pump capacity of fuel gauging unit.
The control of electric current is to adopt chopping way.This chopper current is to realize by the PWM mode, adjusts online dutycycle and the frequency of PWM by control driving and pick-up unit, thereby adjusts the electric current on the fuel gauging unit.
The factor that affects fuel gauging unit oil mass characteristic has: pressure reduction, valve inflow point fuel oil temperature that the variation tendency of drive current size, electric current and rate of change, valve are imported and exported.When testing with fuel gauging unit testing device provided by the invention, by the dutycycle of online adjustment PWM and the size of frequency shift drive current, the speed of adjustment has determined the speed of curent change.Be different from the conventional mechanical valve, consider the electromagnetism hesitation problem that solenoid valve exists, need to finish the test of lift, two strokes of backhaul.Unload the poor adjusting of inlet and outlet pressure that oil pressure is realized the fuel gauging unit by the setting of regulating pump speed and pressure accumulation chamber surplus valve.The temperature of valve inflow point, pressure are measured and are monitored by temperature sensor, pressure transducer.
The present invention can obtain following beneficial effect:
The fuel gauging element characteristics proving installation that the present invention proposes adopts chopper current to drive solenoid valve to be measured.This chopper current is to realize by the PWM mode, by the dutycycle of online adjustment PWM and the size of frequency shift drive current.There is electromagnetism hesitation problem in solenoid valve, need to finish the test of lift, two strokes of backhaul during test.Unload the poor adjusting of inlet and outlet pressure that oil pressure is realized the fuel gauging unit by the setting of regulating pump speed and pressure accumulation chamber surplus valve.The temperature of valve inflow point, pressure are measured and are monitored by temperature sensor, pressure transducer.Can realize thus the control of electric current and pressure reduction, and can detected temperatures, pressure and flow, all factors of complete tests affect fuel gauging unit oil mass characteristic: size of current, the pressure reduction of the variation tendency of electric current and rate of change, valve, fuel oil temperature.
Description of drawings:
Fig. 1 fuel gauging element characteristics proving installation
Among the figure: 1, fuel tank, 2, oil pump, 3, the oil-feed screw, 4, the pressure accumulation chamber, 5, pressure transducer, 6, temperature sensor, 7, the fuel gauging unit, 8, flowmeter, 9, surplus valve.
Fig. 2 fuel gauging cell operation schematic diagram
Among the figure: 1, spool, 2, coil.
Embodiment
Fuel gauging element characteristics proving installation provided by the invention comprises fuel tank 1 as shown in Figure 1, oil pump 2, oil-feed screw 3, pressure accumulation chamber 4, pressure transducer 5, temperature sensor 6, flowmeter 8, surplus valve 9, control driving 10, pick-up unit 11.
Fuel gauging unit 7 is for needing the solenoid valve of test; Fuel tank 1 connects oil pump, and oil pump 2 is connected to pressure accumulation chamber 4 by oil-feed screw 3, and the surplus valve 9 for the pressure size in the control pressure accumulation chamber 4 is installed on the pressure accumulation chamber 4; Pressure accumulation chamber 4 oil-outs are connected to fuel gauging unit 7, and control drives 10 and connects fuel gauging unit 7 input control electric currents, and pick-up unit 11 connects control and drives 10; The oil-out of fuel gauging unit 7 is connected to flowmeter 8 by oil pipe, and flowmeter 8 is connected to fuel tank 1 by oil pipe; The oil-in place of fuel gauging unit 7 is equipped with pressure transducer 5 and temperature sensor 6.Fuel gauging unit 7 is for needing the solenoid valve of test.Fuel tank 1 oil-feed pump 2 fuel feeding, oil pump 2 is input to pressure accumulation chamber 4 by oil-feed screw 3 with fuel oil, the pressure size in the surplus valve 9 control pressure accumulation chambeies 4 is installed, i.e. the intake pressure of fuel gauging unit 7 on the pressure accumulation chamber 4.Pressure accumulation chamber 4 oil-outs directly are input to fuel oil fuel gauging unit 7, and the oil-out of fuel gauging unit 7 is connected to flowmeter 8 by oil pipe, and flowmeter 8 is connected to fuel tank 1 by oil pipe, realize circulating of fuel oil.The oil-in place of fuel gauging unit 7 is equipped with pressure transducer 5, temperature sensor 6, is used for measuring fuel oil input pressure, inlet oil temperature.
Proving installation provided by the invention has following 3 application:
1, the adjustment of solenoid valve inlet and outlet pressure;
Fuel gauging element characteristics proving installation provided by the invention, the electronics transfer pump that employing can be regulated pump oil rotating speed accurately control oil pump to the fuel delivery in pressure accumulation chamber, a surplus valve is housed on the pressure accumulation chamber, can regulate the fuel pressure in the chamber, realize the adjusting of cavity pressure and stable by the oil pressure that unloads of regulating pump speed and surplus valve.Because pressure accumulation chamber oil-out directly is connected by oil pipe with the oil-in of fuel gauging unit, the input pressure of fuel gauging unit equals the pressure of fuel oil in the pressure accumulation chamber, because the oil pressure that goes out of fuel gauging unit is environmental pressure, therefore can be poor by the inlet and outlet pressure of regulating the fuel pressure indirect regulation fuel gauging unit in the pressure accumulation chamber.The discharge characteristic of fuel gauging unit is also different under the different pressure reduction, should test pressure reduction to the impact of its discharge characteristic during therefore on the fuel gauging unit testing.
2, control size of current and rate of change adjustment;
This device adopts chopping way to the control of fuel gauging unit input current.This chopper current is to realize by the PWM mode, adjusts online dutycycle and the frequencies of PWM by control driving 10 and pick-up unit 11, thereby adjusts the size of current on the fuel gauging to be measured unit 7, and the speed of adjusting electric current has determined the rate of change of control electric current.The size of drive current and rate of change all are the factors that affects fuel gauging unit oil mass characteristic, can test respectively these two variablees during with this device to test.
3, the measurement of fuel oil temperature, pressure and detection.
Mounting temperature sensor and pressure transducer on the connected pipes of pressure accumulation chamber and fuel gauging unit, working temperature by temperature sensor measurement fuel gauging unit, and test fuel oil temperature to the impact of its oil mass characteristic, in addition, this temperature can not surpass the safe temperature of fuel gauging unit.Detect size and the fluctuation range of the inlet pressure of fuel gauging unit by pressure transducer.
Claims (1)
1. fuel gauging element characteristics proving installation is characterized in that: comprise fuel tank, oil pump, oil-feed screw, pressure accumulation chamber, pressure transducer, temperature sensor, flowmeter, surplus valve, control driving, pick-up unit;
The fuel gauging unit is for needing the solenoid valve of test; Fuel tank connects oil pump, and oil pump is connected to the pressure accumulation chamber by the oil-feed screw, and the surplus valve for the pressure size in the control pressure accumulation chamber is installed on the pressure accumulation chamber; Pressure accumulation chamber oil-out is connected to the fuel gauging unit, and control drives and connects fuel gauging unit input control electric current, and pick-up unit connects control and drives; The oil-out of fuel gauging unit is connected to flowmeter by oil pipe, and flowmeter is connected to fuel tank by oil pipe; The oil-in place of fuel gauging unit is equipped with pressure transducer and temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365325.0A CN103063418B (en) | 2012-09-26 | 2012-09-26 | Fuel gauging element characteristics measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365325.0A CN103063418B (en) | 2012-09-26 | 2012-09-26 | Fuel gauging element characteristics measurement mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103063418A true CN103063418A (en) | 2013-04-24 |
| CN103063418B CN103063418B (en) | 2016-04-20 |
Family
ID=48106136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210365325.0A Expired - Fee Related CN103063418B (en) | 2012-09-26 | 2012-09-26 | Fuel gauging element characteristics measurement mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103063418B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195633A (en) * | 2013-04-26 | 2013-07-10 | 阴山 | Full-automatic fuel-injection quantity and fuel injection law testing equipment |
| CN103791945A (en) * | 2013-11-21 | 2014-05-14 | 安徽科航自动化仪器有限公司 | Cooling tower lubricating oil tank detection device |
| CN105043456A (en) * | 2015-09-08 | 2015-11-11 | 连云港港口集团有限公司 | Energy consumption monitoring platform applicable to ships |
| CN106441849A (en) * | 2016-10-13 | 2017-02-22 | 天津智源机械制造股份有限公司 | Flow control valve examination apparatus |
| CN108286476A (en) * | 2017-12-29 | 2018-07-17 | 北京理工大学 | The control method and device of bi-directional electromagnetic force control valve for common rail flow control |
| CN110748422A (en) * | 2019-10-28 | 2020-02-04 | 北京动力机械研究所 | Method for estimating fuel flow of air hopper oil way |
| CN111828220A (en) * | 2020-07-16 | 2020-10-27 | 南通职业大学 | Performance testing device and measuring method for oil inlet metering valve of common rail pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4176549A (en) * | 1977-09-07 | 1979-12-04 | Carl Hurth Maschinen- Und Zahnradfabrik | Hydraulic rigging device |
| US5499527A (en) * | 1993-05-07 | 1996-03-19 | Siemens Aktiengesellschaft | Method and apparatus for testing a spring-loaded safety valve |
| CN1595092A (en) * | 2004-06-22 | 2005-03-16 | 浙江春晖智能控制股份有限公司 | Method for testing solenoid valve flow and pressure adjustment characteristic curve |
| CN201145287Y (en) * | 2007-09-30 | 2008-11-05 | 江西航海仪器厂 | Combustor fuel scale valve |
| JP2010210448A (en) * | 2009-03-11 | 2010-09-24 | Hitachi-Ge Nuclear Energy Ltd | Operation inspection system and operation inspection method of excessive flow rate blocking valve |
| CN101949772A (en) * | 2010-09-29 | 2011-01-19 | 奇瑞汽车股份有限公司 | Method for measuring pressure reliving rate of pressure reducing valve and detection method of pressure reducing valve |
| CN102564753A (en) * | 2011-12-31 | 2012-07-11 | 杭州哲达科技股份有限公司 | Test table of intelligent fluid control valve and detecting method thereof |
-
2012
- 2012-09-26 CN CN201210365325.0A patent/CN103063418B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4176549A (en) * | 1977-09-07 | 1979-12-04 | Carl Hurth Maschinen- Und Zahnradfabrik | Hydraulic rigging device |
| US5499527A (en) * | 1993-05-07 | 1996-03-19 | Siemens Aktiengesellschaft | Method and apparatus for testing a spring-loaded safety valve |
| CN1595092A (en) * | 2004-06-22 | 2005-03-16 | 浙江春晖智能控制股份有限公司 | Method for testing solenoid valve flow and pressure adjustment characteristic curve |
| CN201145287Y (en) * | 2007-09-30 | 2008-11-05 | 江西航海仪器厂 | Combustor fuel scale valve |
| JP2010210448A (en) * | 2009-03-11 | 2010-09-24 | Hitachi-Ge Nuclear Energy Ltd | Operation inspection system and operation inspection method of excessive flow rate blocking valve |
| CN101949772A (en) * | 2010-09-29 | 2011-01-19 | 奇瑞汽车股份有限公司 | Method for measuring pressure reliving rate of pressure reducing valve and detection method of pressure reducing valve |
| CN102564753A (en) * | 2011-12-31 | 2012-07-11 | 杭州哲达科技股份有限公司 | Test table of intelligent fluid control valve and detecting method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 仇滔 等: "一种新型的双电磁阀燃油系统", 《北京理工大学学报》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195633A (en) * | 2013-04-26 | 2013-07-10 | 阴山 | Full-automatic fuel-injection quantity and fuel injection law testing equipment |
| CN103195633B (en) * | 2013-04-26 | 2015-07-22 | 阴山 | Full-automatic fuel-injection quantity and fuel injection law testing equipment |
| CN103791945A (en) * | 2013-11-21 | 2014-05-14 | 安徽科航自动化仪器有限公司 | Cooling tower lubricating oil tank detection device |
| CN105043456A (en) * | 2015-09-08 | 2015-11-11 | 连云港港口集团有限公司 | Energy consumption monitoring platform applicable to ships |
| CN106441849A (en) * | 2016-10-13 | 2017-02-22 | 天津智源机械制造股份有限公司 | Flow control valve examination apparatus |
| CN108286476A (en) * | 2017-12-29 | 2018-07-17 | 北京理工大学 | The control method and device of bi-directional electromagnetic force control valve for common rail flow control |
| CN110748422A (en) * | 2019-10-28 | 2020-02-04 | 北京动力机械研究所 | Method for estimating fuel flow of air hopper oil way |
| CN110748422B (en) * | 2019-10-28 | 2021-06-04 | 北京动力机械研究所 | Method for estimating fuel flow of air hopper oil way |
| CN111828220A (en) * | 2020-07-16 | 2020-10-27 | 南通职业大学 | Performance testing device and measuring method for oil inlet metering valve of common rail pump |
| CN111828220B (en) * | 2020-07-16 | 2022-03-25 | 南通职业大学 | Performance testing device and measuring method for oil inlet metering valve of common rail pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103063418B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103063418B (en) | Fuel gauging element characteristics measurement mechanism | |
| CN202851227U (en) | High-pressure common rail pressure regulating valve characteristic testing device | |
| CN103743562B (en) | A kind of electromagnetic valve test platform | |
| US10221801B2 (en) | Pressure control by phase current and initial adjustment at car line | |
| CN102803726B (en) | There is the metering pump of piston stroke controller | |
| CN102996311B (en) | Method and system for diagnosing oil return failure of electronic control common rail oil sprayer | |
| CN201828400U (en) | Electromagnetic valve and valve body performance detection device for automatic transmission | |
| CN201802535U (en) | Common-rail injector detection system of diesel car | |
| CN104454282B (en) | Performance test method and system for high pressure oil pump | |
| CN105003372A (en) | Oil spraying quantity fault diagnosis method based on rail pressure waveform characteristic parameter observation | |
| EP2943671B1 (en) | Method and arrangement for determining a fuel quality | |
| CN101968018A (en) | Common rail system of diesel oil injector detection table and method thereof for controlling rail pressure in system | |
| EP1250528B1 (en) | Fuel injector | |
| CN206221124U (en) | It is a kind of to investigate the instrument that common-rail injector high pressure reveals failure | |
| CN105003373A (en) | Fault diagnosing method of observing injection timing based on characteristic parameters of waveform of rail pressure | |
| CN102562553A (en) | Electromagnetic water pump and output flow control method thereof | |
| CN103649506A (en) | Method for operating a fuel delivery device | |
| CN106199408A (en) | Solenoid Valve for Common Rail Systems dynamic response characteristic assay device | |
| CN103890360A (en) | Method for determining a current value necessary for changing a switching state of a pressure control valve | |
| CN109519291A (en) | A kind of high pressure co-rail system inlet metering valve flow control system and control method | |
| CN210290358U (en) | Metallurgical hydraulic cylinder performance test system | |
| CN106762160A (en) | A kind of novel fuel temperature compensation | |
| CN203532136U (en) | Gas nozzle detection equipment for gas vehicle | |
| CN103511400B (en) | The method for testing performance of the duty valve in oil pump for automatic transmission | |
| CN101793346B (en) | Rotary quantitative oil supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160420 Termination date: 20210926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |