CN1580540A - Oil-jetting pump oil-quantity automatic measuring testing table - Google Patents
Oil-jetting pump oil-quantity automatic measuring testing table Download PDFInfo
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- CN1580540A CN1580540A CN 200410010275 CN200410010275A CN1580540A CN 1580540 A CN1580540 A CN 1580540A CN 200410010275 CN200410010275 CN 200410010275 CN 200410010275 A CN200410010275 A CN 200410010275A CN 1580540 A CN1580540 A CN 1580540A
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Abstract
This invention relates to a test stand for automatically measuring volume of an oil spray pump including a sprayer, a collector, a deforming stabilizer, a collect/discharge electromagnetic valve and a flow sensor, among which, the oil collector is mounted on the outlet of the oil sprayer connected with the deforming regulator via conduit, outlet of which is linked to the inlet of the collect/discharge valve, the flow sensor is mounted on the valve, the top overflow lip of the sensor and outlet of the valve are connected with the oil tank via return tubes which applies the sensor in the collector to determine it the pump is at the spraying state, either solves the problem of costing too long time to test small volume by single volume flow sensor or complicated structure of a multi-volume flow sensor.
Description
Technical field
The present invention relates to a kind of automatic measuring test-bed of Injection Pump oil mass that can measure automatically each cylinder fuel injection quantity and the dynamic oil spout of each cylinder phase angle
Background technique
Fuel injection pump tester is the equipment that diesel injection pump adjustment and verification are used.At present, fuel injection pump tester adopts the method for artificial visually examine's test tube usually on the method for measurement of oil mass, need collect hundreds of times oil spout when using this kind method to measure with teat glass, inefficiency; And be to detect by an unaided eye to read the scale of oil level on the test tube during reading, measuring accuracy is low.In addition, existing fuel injection pump tester can only be measured the static fuel feeding of each cylinder phase angle.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide the automatic measuring test-bed of a kind of Injection Pump oil mass, to realize the automatic measurement at each cylinder fuel injection quantity and the dynamic oil spout of each cylinder phase angle.
To achieve these goals, technical program of the present invention lies in having adopted the automatic measuring test-bed of a kind of Injection Pump oil mass, this test stand comprises oil sprayer, oil trap, the froth breaking voltage stabilizer, taking and placing solenoid and flow transducer, oil trap is installed in the outlet of oil sprayer, the outlet of oil trap links to each other with the froth breaking voltage stabilizer by conduit, the outlet of froth breaking voltage stabilizer links to each other by the inlet of conduit with the taking and placing solenoid, flow transducer is installed on the taking and placing solenoid, and the overflow hydraulic fluid port of flow transducer links to each other with fuel tank by return tube respectively with the oil outlet of taking and placing solenoid.
Described flow transducer is a volumetric sensor.
Described volumetric sensor is the circular pipe type sensor, tube wall be separately installed with on one over against both sides, two pairs of photoelectric sensors once, the suitable for reading of body is the oil spilling mouth, the end opening of body links to each other with the common port of taking and placing solenoid.
Described oil trap has the oil spout sensor, this sensor is arranged on the bottom opening place of oil trap, be the induction post done of insulating material, seal ring, metal shell from top to bottom successively on the structure, go up conducting plate, piezoelectric chip, conducting plate and pressing plate are formed down, last conducting plate contact with pressing plate by HR high resistance insulated conductor, time conducting plate and by lead respectively the breach from the metal shell draw.
On the described Injection Pump line shaft speed probe is installed, described speed probe, oil spout sensor and taking and placing solenoid link to each other with the microcomputer control circuit of test stand by signal control line respectively.
Each cylinder injector of the present invention oil spout in oil trap separately, the oil spout sensor that is installed on the oil trap is an electrical signal with the pressure fluctuation transformation of energy in the oil trap, the voltage magnitude that produces when pressure fluctuation assert that just oil sprayer stops oil spout during less than a certain setting value; The fuel oil that the pressure fluctuation amplitude is bigger enters the froth breaking voltage stabilizer after oil trap flows out, to eliminate the bubble in the oil circuit and to absorb Wave energy, enter flow transducer then under the condition near steady flow; The switching signal that the flow transducer output stream produces when fixation measuring volume bottom and top two interfaces, microcomputer calculates pairing each the cylinder fuel injection quantity of setting oil spout number of times according to the pulse signal of the speed probe output at time difference between these two switching signals and test stand line shaft place; The switching signal of each cylinder oil spout sensor output can be used as the sign of each cylinder commencement of fuel injection, just can calculate the dynamic oil spout phase angle of each cylinder in conjunction with the pulse signal of line shaft place speed probe output.Adopt the oil spout sensor that is provided with on the oil trap to judge whether Injection Pump is in the oil spout state, long problem consuming time when both having solved the single volume flow transducer and carrying out little oil measurement, avoided adopting many volume flows sensor construction complicated problems again, make flow transducer simple in structure, the switching signal of oil spout sensor output can be used as the foundation of calculating the dynamic oil spout of each cylinder phase angle simultaneously again, thereby has simplified the structure of side amount system; Test stand of the present invention can be realized the automatic measurement at each cylinder fuel injection quantity and the dynamic oil spout of each cylinder phase angle, and can in microcomputer, store and on screen, show survey data in many ways intuitively, improved the measuring accuracy and the working efficiency of fuel injection pump tester greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of oil spout sensor among Fig. 1.
Embodiment
As Fig. 1, shown in Figure 2, test stand of the present invention comprises oil sprayer 6, oil trap 7, froth breaking voltage stabilizer 8, taking and placing solenoid 15 and flow transducer 9, link to each other by conduit between the outlet of the inlet of oil sprayer 6 and oil pump 14, oil trap 7 is installed in the outlet of oil sprayer 6, the outlet of oil trap 7 links to each other with froth breaking voltage stabilizer 8 by conduit, the outlet of froth breaking voltage stabilizer 8 links to each other by the inlet of conduit with taking and placing solenoid 15, flow transducer 9 is installed on the taking and placing solenoid 15, and the overflow hydraulic fluid port 16 of flow transducer 9 links to each other with fuel tank 13 by return tube 17 respectively with the oil outlet of taking and placing solenoid 15.Flow transducer in the present embodiment is a volumetric sensor, volumetric sensor is the circular pipe type sensor, tube wall be separately installed with on one over against both sides, two pairs of photoelectric sensors once, the suitable for reading of body is the oil spilling mouth, the end opening of body links to each other with the common port of taking and placing solenoid 15.Oil trap 7 has oil spout sensor 12, this sensor 12 is arranged on the bottom opening place of oil trap 7, be the induction post 18 done of insulating material, seal ring 19, metal shell 20 from top to bottom successively on the structure, go up conducting plate 21, piezoelectric chip 22, conducting plate 23 and pressing plate 24 are formed down, last conducting plate 21 contact with pressing plate 24 by HR high resistance insulated conductor, time conducting plate 23 and by lead respectively the breach from the metal shell 20 draw (see figure 2).Speed probe 4 is installed on the Injection Pump line shaft, and speed probe 4, oil spout sensor 12 and taking and placing solenoid 15 link to each other with the microcomputer control circuit of test stand by signal control line respectively.
Be installed in one of them oil sprayer 6 oil spout in oil trap 7 on four cylinder pumps on the fuel injection pump tester 1, after the fuel oil that the pressure fluctuation amplitude is bigger flows out from oil trap 7, eliminate the bubble in the oil circuit and absorb its Wave energy through froth breaking voltage stabilizer 8, under condition, enter flow transducer 9 then near steady flow, oil outlet on the flow transducer 9 bottom taking and placing solenoids 15 connects with threeway 11 through flexible pipe, the flow-off on flow transducer top connects with threeway 10 through flexible pipe, flows into fuel tank 13 by flexible pipe again between two threeways behind soft pipe connection.Oil sprayer 6 is in oil trap 7 during oil spout, can cause the fluctuation of oil pressure in the oil trap 7, the fuel injection quantity fluctuating range of oil pressure more at most is big more, the oil spout sensor 12 that is installed in oil trap 7 belows is converted to electrical signal with the Wave energy of oil pressure in the oil trap 7, send into conditioning through cable and handle with the oil spout module in the drive circuit case 2, the switching signal one tunnel after the processing is sent into microcomputer 3 through interface circuit, and another road connects oil spout indicator 5, tutorial light flash of light during oil spout, tutorial light extinguishes when stopping oil; The electrical signal of flow transducer 9 outputs is sent into through cable and is converted to switching signal after conditioning is handled with the flow module in the drive circuit case 2, through corresponding interface circuits input microcomputer, time difference between the switching signal that microcomputer produces when flowing through this volume bottom and top two interfaces according to the fixation measuring volume in the flow transducer 9 and fuel oil is calculated fuel flow, just can calculate the pairing fuel injection quantity of setting oil spout number of times in conjunction with the Injection Pump tach signal that is installed in 4 transmission of Injection Pump line shaft place speed probe; The working state of flow transducer 9 is by microcomputer 3 controls, microcomputer 3 is according to measuring and draining the oil the switching of this two states through drive circuit control flow rate sensor 9 bottom taking and placing solenoids 15, taking and placing solenoid 15 energisings during measurement, close oil outlet, after this is measured and finishes, 15 outages of taking and placing solenoid are drained the oil from oil outlet; Microcomputer 3 is the switching signal of each the cylinder sensor input oil spout initiatic signal as each cylinder, with the pulse signal of speed probe 4 inputs as reference signal, thereby calculate the dynamic oil spout phase angle of each cylinder of Injection Pump; Microcomputer 3 can be according to setting, is showing above each survey data with forms such as numeral, Nogata post, curves on the screen, and can be with these data storage and printing.
Claims (5)
1, the automatic measuring test-bed of a kind of Injection Pump oil mass, it is characterized in that: this test stand comprises oil sprayer, oil trap, froth breaking voltage stabilizer, taking and placing solenoid and flow transducer, oil trap is installed in the outlet of oil sprayer, the outlet of oil trap links to each other with the froth breaking voltage stabilizer by conduit, the outlet of froth breaking voltage stabilizer links to each other by the inlet of conduit with the taking and placing solenoid, flow transducer is installed on the taking and placing solenoid, and the overflow hydraulic fluid port of flow transducer links to each other with fuel tank by return tube respectively with the oil outlet of taking and placing solenoid.
2, the automatic measuring test-bed of Injection Pump oil mass according to claim 1, it is characterized in that: described flow transducer is a volumetric sensor.
3, the automatic measuring test-bed of Injection Pump oil mass according to claim 2, it is characterized in that: described volumetric sensor is the circular pipe type sensor, tube wall be separately installed with on one over against both sides, two pairs of photoelectric sensors once, the suitable for reading of body is the oil spilling mouth, and the end opening of body links to each other with the common port of taking and placing solenoid.
4, according to arbitrary automatic measuring test-bed of described Injection Pump oil mass among the claim 1-3, it is characterized in that: described oil trap has the oil spout sensor, this sensor is arranged on the bottom opening place of oil trap, be the induction post done of insulating material, seal ring, metal shell from top to bottom successively on the structure, go up conducting plate, piezoelectric chip, conducting plate and pressing plate are formed down, last conducting plate contact with pressing plate by HR high resistance insulated conductor, time conducting plate and by lead respectively the breach from the metal shell draw.
5, the automatic measuring test-bed of Injection Pump oil mass according to claim 4, it is characterized in that: on the described Injection Pump line shaft speed probe is installed, described speed probe, oil spout sensor and taking and placing solenoid link to each other with the microcomputer control circuit of test stand by signal control line respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410010275XA CN1325789C (en) | 2004-05-18 | 2004-05-18 | Oil-jetting pump oil-quantity automatic measuring testing table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410010275XA CN1325789C (en) | 2004-05-18 | 2004-05-18 | Oil-jetting pump oil-quantity automatic measuring testing table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1580540A true CN1580540A (en) | 2005-02-16 |
| CN1325789C CN1325789C (en) | 2007-07-11 |
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ID=34581627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410010275XA Expired - Fee Related CN1325789C (en) | 2004-05-18 | 2004-05-18 | Oil-jetting pump oil-quantity automatic measuring testing table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1325789C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571090B (en) * | 2009-06-04 | 2010-09-08 | 北京航空航天大学 | Fuel injection rule measuring device of diesel engine and measuring method thereof |
| CN102418637A (en) * | 2011-08-25 | 2012-04-18 | 中国兵器工业集团第七○研究所 | Device for simulating cam crank shaft signal phase of four-travel diesel engine on pump test bed |
| CN103061942A (en) * | 2013-02-05 | 2013-04-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Device and method for detecting consistency of flow rate of control valve component of oil injector |
| CN104532372A (en) * | 2014-12-24 | 2015-04-22 | 苏州工业园区华西泵业有限公司 | Weighing type flow machine and method |
| CN105201719A (en) * | 2015-04-08 | 2015-12-30 | 泰安市鲁科海电子信息产业有限公司 | Pneumatic PT injector test stand |
| CN106907282A (en) * | 2017-01-25 | 2017-06-30 | 中国第汽车股份有限公司 | The test device of piezo actuator Performance And Reliability |
| CN114263555A (en) * | 2021-09-09 | 2022-04-01 | 泰安九和智能设备有限公司 | Micro-ship engine fuel sprayer calibration equipment |
| CN115489213A (en) * | 2022-11-21 | 2022-12-20 | 季华实验室 | OLED (organic light emitting diode) jet printing ink path flow control method and system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3139831C2 (en) * | 1981-10-07 | 1987-02-05 | Daimler-Benz Ag, 7000 Stuttgart | Measuring device for measuring successive fuel injection quantities |
| CN85202907U (en) * | 1985-07-17 | 1986-05-28 | 中国船舶工业总公司第五三研究所 | Switchable indicator for measuring liquid flowrate |
| CN2345718Y (en) * | 1998-05-25 | 1999-10-27 | 胡风华 | Device for detecting oil-injection quantity and oil-injection quantity diesel-oil internal combustion engine |
| FR2795173B1 (en) * | 1999-06-16 | 2001-07-20 | Efs Sa | PISTON DEVICE FOR MEASURING SMALL QUANTITIES OF FUEL INJECTED BY AN INJECTOR |
| JP3773383B2 (en) * | 1999-09-17 | 2006-05-10 | 株式会社クボタ | Measuring method of injection start time in fuel injection pump |
| CN2727432Y (en) * | 2004-05-18 | 2005-09-21 | 河南科技大学 | Test stand for automatically measuring oil mass of injection pump |
-
2004
- 2004-05-18 CN CNB200410010275XA patent/CN1325789C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571090B (en) * | 2009-06-04 | 2010-09-08 | 北京航空航天大学 | Fuel injection rule measuring device of diesel engine and measuring method thereof |
| CN102418637A (en) * | 2011-08-25 | 2012-04-18 | 中国兵器工业集团第七○研究所 | Device for simulating cam crank shaft signal phase of four-travel diesel engine on pump test bed |
| CN102418637B (en) * | 2011-08-25 | 2015-08-26 | 中国兵器工业集团第七○研究所 | Four-cycle diesel Test-bed for pump cam crank signal phase simulator |
| CN103061942A (en) * | 2013-02-05 | 2013-04-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Device and method for detecting consistency of flow rate of control valve component of oil injector |
| CN104532372A (en) * | 2014-12-24 | 2015-04-22 | 苏州工业园区华西泵业有限公司 | Weighing type flow machine and method |
| CN105201719A (en) * | 2015-04-08 | 2015-12-30 | 泰安市鲁科海电子信息产业有限公司 | Pneumatic PT injector test stand |
| CN106907282A (en) * | 2017-01-25 | 2017-06-30 | 中国第汽车股份有限公司 | The test device of piezo actuator Performance And Reliability |
| CN106907282B (en) * | 2017-01-25 | 2019-02-15 | 中国第一汽车股份有限公司 | The test device of piezo actuator Performance And Reliability |
| CN114263555A (en) * | 2021-09-09 | 2022-04-01 | 泰安九和智能设备有限公司 | Micro-ship engine fuel sprayer calibration equipment |
| CN114263555B (en) * | 2021-09-09 | 2023-09-12 | 翟泉来 | Verification device for fuel spray nozzle of engine of miniature ship |
| CN115489213A (en) * | 2022-11-21 | 2022-12-20 | 季华实验室 | OLED (organic light emitting diode) jet printing ink path flow control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1325789C (en) | 2007-07-11 |
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Granted publication date: 20070711 Termination date: 20100518 |